this is very cool but it won't work because mouse timestamps will be identical while paused

why can't I make this into a function

.gitignore

@@ -1 +1,2 @@
 /target
+/textures

Cargo.lock

@@ -157,6 +157,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base64"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -184,12 +190,35 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
+[[package]]
+name = "blake3"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "199c42ab6972d92c9f8995f086273d25c42fc0f7b2a1fcefba465c1352d25ba5"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "cc",
+ "cfg-if",
+ "constant_time_eq",
+ "digest",
+]
+
 [[package]]
 name = "block"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
 
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "block-sys"
 version = "0.1.0-beta.1"
@@ -302,6 +331,18 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "configparser"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5458d9d1a587efaf5091602c59d299696a3877a439c8f6d461a2d3cce11df87a"
+
+[[package]]
+name = "constant_time_eq"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7144d30dcf0fafbce74250a3963025d8d52177934239851c917d29f1df280c2"
+
 [[package]]
 name = "core-foundation"
 version = "0.9.3"
@@ -360,6 +401,16 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
 [[package]]
 name = "d3d12"
 version = "0.7.0"
@@ -382,6 +433,17 @@ dependencies = [
  "enum_primitive",
 ]
 
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+ "subtle",
+]
+
 [[package]]
 name = "dispatch"
 version = "0.2.0"
@@ -555,6 +617,16 @@ dependencies = [
  "waker-fn",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.10"
@@ -768,6 +840,29 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "lazy-regex"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e723bd417b2df60a0f6a2b6825f297ea04b245d4ba52b5a22cb679bdf58b05fa"
+dependencies = [
+ "lazy-regex-proc_macros",
+ "once_cell",
+ "regex",
+]
+
+[[package]]
+name = "lazy-regex-proc_macros"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f0a1d9139f0ee2e862e08a9c5d0ba0470f2aa21cd1e1aa1b1562f83116c725f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn 2.0.29",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -822,6 +917,26 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "lz4"
+version = "1.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e9e2dd86df36ce760a60f6ff6ad526f7ba1f14ba0356f8254fb6905e6494df1"
+dependencies = [
+ "libc",
+ "lz4-sys",
+]
+
+[[package]]
+name = "lz4-sys"
+version = "1.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57d27b317e207b10f69f5e75494119e391a96f48861ae870d1da6edac98ca900"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -1198,6 +1313,12 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22686f4785f02a4fcc856d3b3bb19bf6c8160d103f7a99cc258bddd0251dc7f2"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
+
 [[package]]
 name = "proc-macro-crate"
 version = "1.3.1"
@@ -1222,6 +1343,19 @@ name = "profiling"
 version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46b2164ebdb1dfeec5e337be164292351e11daf63a05174c6776b2f47460f0c9"
+dependencies = [
+ "profiling-procmacros",
+]
+
+[[package]]
+name = "profiling-procmacros"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74c55e9e629af5298a40e0fa106435b2da30484c4ec76b41d19bc4d00dd8b903"
+dependencies = [
+ "quote",
+ "syn 2.0.29",
+]
 
 [[package]]
 name = "quote"
@@ -1232,6 +1366,36 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "range-alloc"
 version = "0.1.3"
@@ -1244,6 +1408,83 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2ff9a1f06a88b01621b7ae906ef0211290d1c8a168a15542486a8f61c0833b9"
 
+[[package]]
+name = "rbx_binary"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e50573021d04b680018955662eba7dc4aac3de92219231798f6c9b41e38ab01"
+dependencies = [
+ "log",
+ "lz4",
+ "profiling",
+ "rbx_dom_weak",
+ "rbx_reflection",
+ "rbx_reflection_database",
+ "thiserror",
+]
+
+[[package]]
+name = "rbx_dom_weak"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "161729449bbb0cfa657ce7bcca6a160d0af06d8b8d9efdc9abe14735dccacdb9"
+dependencies = [
+ "rbx_types",
+ "serde",
+]
+
+[[package]]
+name = "rbx_reflection"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08bd48487192046fec8f805f3fa29f3d7d5beb9890b0859b1a92bd8aff580343"
+dependencies = [
+ "rbx_types",
+ "serde",
+ "thiserror",
+]
+
+[[package]]
+name = "rbx_reflection_database"
+version = "0.2.7+roblox-588"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1be6cf674182806f11ad4899dd1feafe977591f1ae035ae05a58d4b74e487276"
+dependencies = [
+ "lazy_static",
+ "rbx_reflection",
+ "rmp-serde",
+ "serde",
+]
+
+[[package]]
+name = "rbx_types"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "070106e926b8ae54c7bc443e5db4d868d7f0af51c1d7cfd7efe1364c1753d8a3"
+dependencies = [
+ "base64",
+ "bitflags 1.3.2",
+ "blake3",
+ "lazy_static",
+ "rand",
+ "serde",
+ "thiserror",
+]
+
+[[package]]
+name = "rbx_xml"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bc65b70827519fdc4ab47416d1085b912f087fadab9ed415471b6daba635574"
+dependencies = [
+ "base64",
+ "log",
+ "rbx_dom_weak",
+ "rbx_reflection",
+ "rbx_reflection_database",
+ "xml-rs",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.3.5"
@@ -1255,9 +1496,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.9.4"
+version = "1.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12de2eff854e5fa4b1295edd650e227e9d8fb0c9e90b12e7f36d6a6811791a29"
+checksum = "697061221ea1b4a94a624f67d0ae2bfe4e22b8a17b6a192afb11046542cc8c47"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1267,9 +1508,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.3.7"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49530408a136e16e5b486e883fbb6ba058e8e4e8ae6621a77b048b314336e629"
+checksum = "c2f401f4955220693b56f8ec66ee9c78abffd8d1c4f23dc41a23839eb88f0795"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1288,6 +1529,28 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "216080ab382b992234dda86873c18d4c48358f5cfcb70fd693d7f6f2131b628b"
 
+[[package]]
+name = "rmp"
+version = "0.8.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f9860a6cc38ed1da53456442089b4dfa35e7cedaa326df63017af88385e6b20"
+dependencies = [
+ "byteorder",
+ "num-traits 0.2.16",
+ "paste",
+]
+
+[[package]]
+name = "rmp-serde"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bffea85eea980d8a74453e5d02a8d93028f3c34725de143085a844ebe953258a"
+dependencies = [
+ "byteorder",
+ "rmp",
+ "serde",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.23"
@@ -1338,6 +1601,26 @@ dependencies = [
  "tiny-skia",
 ]
 
+[[package]]
+name = "serde"
+version = "1.0.188"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf9e0fcba69a370eed61bcf2b728575f726b50b55cba78064753d708ddc7549e"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.188"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -1405,16 +1688,23 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "strafe-client"
-version = "0.3.0"
+version = "0.8.0"
 dependencies = [
  "async-executor",
  "bytemuck",
+ "configparser",
  "ddsfile",
  "env_logger",
  "glam",
+ "lazy-regex",
  "log",
  "obj",
+ "parking_lot",
  "pollster",
+ "rbx_binary",
+ "rbx_dom_weak",
+ "rbx_reflection_database",
+ "rbx_xml",
  "wgpu",
  "winit",
 ]
@@ -1425,6 +1715,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6637bab7722d379c8b41ba849228d680cc12d0a45ba1fa2b48f2a30577a06731"
 
+[[package]]
+name = "subtle"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -1524,6 +1820,12 @@ version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a464a4b34948a5f67fddd2b823c62d9d92e44be75058b99939eae6c5b6960b33"
 
+[[package]]
+name = "typenum"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.11"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "strafe-client"
-version = "0.3.0"
+version = "0.8.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -8,16 +8,23 @@ edition = "2021"
 [dependencies]
 async-executor = "1.5.1"
 bytemuck = { version = "1.13.1", features = ["derive"] }
+configparser = "3.0.2"
 ddsfile = "0.5.1"
 env_logger = "0.10.0"
 glam = "0.24.1"
+lazy-regex = "3.0.2"
 log = "0.4.20"
 obj = "0.10.2"
+parking_lot = "0.12.1"
 pollster = "0.3.0"
+rbx_binary = "0.7.1"
+rbx_dom_weak = "2.5.0"
+rbx_reflection_database = "0.2.7"
+rbx_xml = "0.13.1"
 wgpu = "0.17.0"
 winit = "0.28.6"
 
-[profile.release]
+#[profile.release]
-lto = true
+#lto = true
-strip = true
+#strip = true
-codegen-units = 1
+#codegen-units = 1

src/aabb.rs

@@ -0,0 +1,91 @@
+#[derive(Debug,Clone,Copy,Hash,Eq,PartialEq)]
+pub enum AabbFace{
+	Right,//+X
+	Top,
+	Back,
+	Left,
+	Bottom,
+	Front,
+}
+#[derive(Clone)]
+pub struct Aabb {
+	pub min: glam::Vec3,
+	pub max: glam::Vec3,
+}
+
+impl Default for Aabb {
+	fn default() -> Self {
+		Aabb::new()
+	}
+}
+
+impl Aabb {
+	const VERTEX_DATA: [glam::Vec3; 8] = [
+		glam::vec3(1., -1., -1.),
+		glam::vec3(1., 1., -1.),
+		glam::vec3(1., 1., 1.),
+		glam::vec3(1., -1., 1.),
+		glam::vec3(-1., -1., 1.),
+		glam::vec3(-1., 1., 1.),
+		glam::vec3(-1., 1., -1.),
+		glam::vec3(-1., -1., -1.),
+	];
+
+	pub fn new() -> Self {
+		Self {min: glam::Vec3::INFINITY,max: glam::Vec3::NEG_INFINITY}
+	}
+
+	pub fn grow(&mut self, point:glam::Vec3){
+		self.min=self.min.min(point);
+		self.max=self.max.max(point);
+	}
+	pub fn join(&mut self, aabb:&Aabb){
+		self.min=self.min.min(aabb.min);
+		self.max=self.max.max(aabb.max);
+	}
+	pub fn inflate(&mut self, hs:glam::Vec3){
+		self.min-=hs;
+		self.max+=hs;
+	}
+	pub fn intersects(&self,aabb:&Aabb)->bool{
+		(self.min.cmplt(aabb.max)&aabb.min.cmplt(self.max)).all()
+	}
+	pub fn normal(face:AabbFace) -> glam::Vec3 {
+		match face {
+			AabbFace::Right => glam::vec3(1.,0.,0.),
+			AabbFace::Top => glam::vec3(0.,1.,0.),
+			AabbFace::Back => glam::vec3(0.,0.,1.),
+			AabbFace::Left => glam::vec3(-1.,0.,0.),
+			AabbFace::Bottom => glam::vec3(0.,-1.,0.),
+			AabbFace::Front => glam::vec3(0.,0.,-1.),
+		}
+	}
+	pub fn unit_vertices() -> [glam::Vec3;8] {
+		return Self::VERTEX_DATA;
+	}
+	pub fn face(&self,face:AabbFace) -> Aabb {
+		let mut aabb=self.clone();
+		//in this implementation face = worldspace aabb face
+		match face {
+			AabbFace::Right => aabb.min.x=aabb.max.x,
+			AabbFace::Top => aabb.min.y=aabb.max.y,
+			AabbFace::Back => aabb.min.z=aabb.max.z,
+			AabbFace::Left => aabb.max.x=aabb.min.x,
+			AabbFace::Bottom => aabb.max.y=aabb.min.y,
+			AabbFace::Front => aabb.max.z=aabb.min.z,
+		}
+		return aabb;
+	}
+	pub fn center(&self)->glam::Vec3{
+		return (self.min+self.max)/2.0
+	}
+	//probably use floats for area & volume because we don't care about precision
+	pub fn area_weight(&self)->f32{
+		let d=self.max-self.min;
+		d.x*d.y+d.y*d.z+d.z*d.x
+	}
+	pub fn volume(&self)->f32{
+		let d=self.max-self.min;
+		d.x*d.y*d.z
+	}
+}

src/body.rs

@@ -1,857 +0,0 @@
-use crate::{instruction::{InstructionEmitter, InstructionConsumer, TimedInstruction}, zeroes::zeroes2};
-
-#[derive(Debug)]
-pub enum PhysicsInstruction {
-	CollisionStart(RelativeCollision),
-	CollisionEnd(RelativeCollision),
-	SetControlDir(glam::Vec3),
-	StrafeTick,
-	Jump,
-	SetWalkTargetVelocity(glam::Vec3),
-	RefreshWalkTarget,
-	ReachWalkTargetVelocity,
-	// Water,
-	// Spawn(
-	// 	Option<SpawnId>,
-	// 	bool,//true = Trigger; false = teleport
-	// 	bool,//true = Force
-	// )
-}
-
-pub struct Body {
-	position: glam::Vec3,//I64 where 2^32 = 1 u
-	velocity: glam::Vec3,//I64 where 2^32 = 1 u/s
-	acceleration: glam::Vec3,//I64 where 2^32 = 1 u/s/s
-	time: TIME,//nanoseconds x xxxxD!
-}
-trait MyHash{
-	fn hash(&self) -> u64;
-}
-impl MyHash for Body {
-    fn hash(&self) -> u64 {
-		let mut hasher=std::collections::hash_map::DefaultHasher::new();
-        for &el in self.position.as_ref().iter() {
-            std::hash::Hasher::write(&mut hasher, el.to_ne_bytes().as_slice());
-        }
-        for &el in self.velocity.as_ref().iter() {
-            std::hash::Hasher::write(&mut hasher, el.to_ne_bytes().as_slice());
-        }
-        for &el in self.acceleration.as_ref().iter() {
-             std::hash::Hasher::write(&mut hasher, el.to_ne_bytes().as_slice());
-        }
-        std::hash::Hasher::write(&mut hasher, self.time.to_ne_bytes().as_slice());
-		return std::hash::Hasher::finish(&hasher);//hash check to see if walk target is valid
-    }
-}
-
-pub enum MoveRestriction {
-	Air,
-	Water,
-	Ground,
-	Ladder,//multiple ladders how
-}
-
-enum MouseInterpolation {
-	First,//just checks the last value
-	Lerp,//lerps between
-}
-
-enum InputInstruction {
-	MoveMouse(glam::IVec2),
-	Jump(bool),
-}
-
-struct InputState {
-	controls: u32,
-	mouse_interpolation: MouseInterpolation,
-	time: TIME,
-}
-
-impl InputState {
-	pub fn get_control(&self,control:u32) -> bool {
-		self.controls&control!=0
-	}
-	pub fn process_instruction(&mut self,ins:InputInstruction){
-		match ins {
-			InputInstruction::MoveMouse(m) => todo!("set mouse_interpolation"),
-			InputInstruction::Jump(b) => todo!("how does info about style modifiers get here"),
-		}
-	}
-}
-
-pub struct MouseInterpolationState {
-	interpolation: MouseInterpolation,
-	time0: TIME,
-	time1: TIME,
-	mouse0: glam::IVec2,
-	mouse1: glam::IVec2,
-}
-
-impl MouseInterpolationState {
-	pub fn move_mouse(&mut self,time:TIME,pos:glam::IVec2){
-		self.time0=self.time1;
-		self.mouse0=self.mouse1;
-		self.time1=time;
-		self.mouse1=pos;
-	}
-	pub fn interpolated_position(&self,time:TIME) -> glam::IVec2 {
-		match self.interpolation {
-			MouseInterpolation::First => self.mouse0,
-			MouseInterpolation::Lerp => {
-				let m0=self.mouse0.as_i64vec2();
-				let m1=self.mouse1.as_i64vec2();
-				//these are deltas
-				let t1t=(self.time1-time) as i64;
-				let tt0=(time-self.time0) as i64;
-				let dt=(self.time1-self.time0) as i64;
-				((m0*t1t+m1*tt0)/dt).as_ivec2()
-			}
-		}
-	}
-}
-
-pub enum WalkEnum{
-	Reached,
-	Transient,
-	Invalid,
-}
-pub struct WalkState {
-	pub target_velocity: glam::Vec3,
-	pub target_time: TIME,
-	pub state: WalkEnum,
-}
-impl WalkState {
-	pub fn new() -> Self {
-		Self{
-			target_velocity:glam::Vec3::ZERO,
-			target_time:0,
-			state:WalkEnum::Invalid,
-		}
-	}
-}
-
-pub struct PhysicsState {
-	pub body: Body,
-	pub hitbox_halfsize: glam::Vec3,
-	pub contacts: std::collections::HashSet::<RelativeCollision>,
-	//pub intersections: Vec<ModelId>,
-	//temp
-	pub models_cringe_clone: Vec<Model>,
-	pub temp_control_dir: glam::Vec3,
-	//camera must exist in state because wormholes modify the camera, also camera punch
-	//pub camera: Camera,
-	//pub mouse_interpolation: MouseInterpolationState,
-	pub time: TIME,
-	pub strafe_tick_num: TIME,
-	pub strafe_tick_den: TIME,
-	pub tick: u32,
-	pub mv: f32,
-	pub walk: WalkState,
-	pub walkspeed: f32,
-	pub friction: f32,
-	pub walk_accel:  f32,
-	pub gravity: glam::Vec3,
-	pub grounded: bool,
-	pub jump_trying: bool,
-}
-
-#[derive(Debug,Clone,Copy,Hash,Eq,PartialEq)]
-pub enum AabbFace{
-	Right,//+X
-	Top,
-	Back,
-	Left,
-	Bottom,
-	Front,
-}
-
-pub struct Aabb {
-	min: glam::Vec3,
-	max: glam::Vec3,
-}
-
-impl Aabb {
-	// const FACE_DATA: [[f32; 3]; 6] = [
-	// 	[0.0f32, 0., 1.],
-	// 	[0.0f32, 0., -1.],
-	// 	[1.0f32, 0., 0.],
-	// 	[-1.0f32, 0., 0.],
-	// 	[0.0f32, 1., 0.],
-	// 	[0.0f32, -1., 0.],
-	// ];
-	const VERTEX_DATA: [glam::Vec3; 8] = [
-		glam::vec3(1., -1., -1.),
-		glam::vec3(1., 1., -1.),
-		glam::vec3(1., 1., 1.),
-		glam::vec3(1., -1., 1.),
-		glam::vec3(-1., -1., 1.),
-		glam::vec3(-1., 1., 1.),
-		glam::vec3(-1., 1., -1.),
-		glam::vec3(-1., -1., -1.),
-	];
-	const VERTEX_DATA_RIGHT: [glam::Vec3; 4] = [
-		glam::vec3(1., -1., -1.),
-		glam::vec3(1., 1., -1.),
-		glam::vec3(1., 1., 1.),
-		glam::vec3(1., -1., 1.),
-	];
-	const VERTEX_DATA_TOP: [glam::Vec3; 4] = [
-		glam::vec3(1., 1., -1.),
-		glam::vec3(-1., 1., -1.),
-		glam::vec3(-1., 1., 1.),
-		glam::vec3(1., 1., 1.),
-	];
-	const VERTEX_DATA_BACK: [glam::Vec3; 4] = [
-		glam::vec3(-1., -1., 1.),
-		glam::vec3(1., -1., 1.),
-		glam::vec3(1., 1., 1.),
-		glam::vec3(-1., 1., 1.),
-	];
-	const VERTEX_DATA_LEFT: [glam::Vec3; 4] = [
-		glam::vec3(-1., -1., 1.),
-		glam::vec3(-1., 1., 1.),
-		glam::vec3(-1., 1., -1.),
-		glam::vec3(-1., -1., -1.),
-	];
-	const VERTEX_DATA_BOTTOM: [glam::Vec3; 4] = [
-		glam::vec3(1., -1., 1.),
-		glam::vec3(-1., -1., 1.),
-		glam::vec3(-1., -1., -1.),
-		glam::vec3(1., -1., -1.),
-	];
-	const VERTEX_DATA_FRONT: [glam::Vec3; 4] = [
-		glam::vec3(-1., 1., -1.),
-		glam::vec3(1., 1., -1.),
-		glam::vec3(1., -1., -1.),
-		glam::vec3(-1., -1., -1.),
-	];
-
-	pub fn new() -> Self {
-		Self {min: glam::Vec3::INFINITY,max: glam::Vec3::NEG_INFINITY}
-	}
-
-	pub fn grow(&mut self, point:glam::Vec3){
-		self.min=self.min.min(point);
-		self.max=self.max.max(point);
-	}
-
-	pub fn normal(face:AabbFace) -> glam::Vec3 {
-		match face {
-			AabbFace::Right => glam::vec3(1.,0.,0.),
-			AabbFace::Top => glam::vec3(0.,1.,0.),
-			AabbFace::Back => glam::vec3(0.,0.,1.),
-			AabbFace::Left => glam::vec3(-1.,0.,0.),
-			AabbFace::Bottom => glam::vec3(0.,-1.,0.),
-			AabbFace::Front => glam::vec3(0.,0.,-1.),
-		}
-	}
-	pub fn unit_vertices() -> [glam::Vec3;8] {
-		return Self::VERTEX_DATA;
-	}
-	pub fn unit_face_vertices(face:AabbFace) -> [glam::Vec3;4] {
-		match face {
-			AabbFace::Right => Self::VERTEX_DATA_RIGHT,
-			AabbFace::Top => Self::VERTEX_DATA_TOP,
-			AabbFace::Back => Self::VERTEX_DATA_BACK,
-			AabbFace::Left => Self::VERTEX_DATA_LEFT,
-			AabbFace::Bottom => Self::VERTEX_DATA_BOTTOM,
-			AabbFace::Front => Self::VERTEX_DATA_FRONT,
-		}
-	}
-}
-
-//pretend to be using what we want to eventually do
-type TreyMeshFace = AabbFace;
-type TreyMesh = Aabb;
-
-pub struct Model {
-	//A model is a thing that has a hitbox. can be represented by a list of TreyMesh-es
-	//in this iteration, all it needs is extents.
-	transform: glam::Mat4,
-}
-
-impl Model {
-	pub fn new(transform:glam::Mat4) -> Self {
-		Self{transform}
-	}
-	pub fn unit_vertices(&self) -> [glam::Vec3;8] {
-		Aabb::unit_vertices()
-	}
-	pub fn mesh(&self) -> TreyMesh {
-		let mut aabb=Aabb::new();
-		for &vertex in self.unit_vertices().iter() {
-			aabb.grow(glam::Vec4Swizzles::xyz(self.transform*vertex.extend(1.0)));
-		}
-		return aabb;
-	}
-	pub fn unit_face_vertices(&self,face:TreyMeshFace) -> [glam::Vec3;4] {
-		Aabb::unit_face_vertices(face)
-	}
-	pub fn face_mesh(&self,face:TreyMeshFace) -> TreyMesh {
-		let mut aabb=self.mesh();
-		//in this implementation face = worldspace aabb face
-		match face {
-			AabbFace::Right => aabb.min.x=aabb.max.x,
-			AabbFace::Top => aabb.min.y=aabb.max.y,
-			AabbFace::Back => aabb.min.z=aabb.max.z,
-			AabbFace::Left => aabb.max.x=aabb.min.x,
-			AabbFace::Bottom => aabb.max.y=aabb.min.y,
-			AabbFace::Front => aabb.max.z=aabb.min.z,
-		}
-		return aabb;
-	}
-	pub fn face_normal(&self,face:TreyMeshFace) -> glam::Vec3 {
-		glam::Vec4Swizzles::xyz(Aabb::normal(face).extend(0.0))//this is wrong for scale
-	}
-}
-
-//need non-face (full model) variant for CanCollide false objects
-//OR have a separate list from contacts for model intersection
-#[derive(Debug,Clone,Eq,Hash,PartialEq)]
-pub struct RelativeCollision {
-	face: TreyMeshFace,//just an id
-	model: u32,//using id to avoid lifetimes
-}
-
-impl RelativeCollision {
-	pub fn mesh(&self,models:&Vec<Model>) -> TreyMesh {
-		return models.get(self.model as usize).unwrap().face_mesh(self.face)
-	}
-	pub fn normal(&self,models:&Vec<Model>) -> glam::Vec3 {
-		return models.get(self.model as usize).unwrap().face_normal(self.face)
-	}
-}
-
-pub type TIME = i64;
-
-impl Body {
-	pub fn with_pva(position:glam::Vec3,velocity:glam::Vec3,acceleration:glam::Vec3) -> Self {
-		Self{
-			position,
-			velocity,
-			acceleration,
-			time: 0,
-		}
-	}
-	pub fn extrapolated_position(&self,time: TIME)->glam::Vec3{
-		let dt=(time-self.time) as f64/1_000_000_000f64;
-		self.position+self.velocity*(dt as f32)+self.acceleration*((0.5*dt*dt) as f32)
-	}
-	pub fn extrapolated_velocity(&self,time: TIME)->glam::Vec3{
-		let dt=(time-self.time) as f64/1_000_000_000f64;
-		self.velocity+self.acceleration*(dt as f32)
-	}
-	pub fn advance_time(&mut self, time: TIME){
-		self.position=self.extrapolated_position(time);
-		self.velocity=self.extrapolated_velocity(time);
-		self.time=time;
-	}
-}
-
-impl PhysicsState {
-	//tickless gaming
-	pub fn run(&mut self, time_limit:TIME){
-		//prepare is ommitted - everything is done via instructions.
-		while let Some(instruction) = self.next_instruction(time_limit) {//collect
-			//advance
-			//self.advance_time(instruction.time);
-			//process
-			self.process_instruction(instruction);
-			//write hash lol
-		}
-	}
-
-	pub fn advance_time(&mut self, time: TIME){
-		self.body.advance_time(time);
-		self.time=time;
-	}
-
-	fn contact_constrain_velocity(&self,velocity:&mut glam::Vec3){
-		for contact in self.contacts.iter() {
-			let n=contact.normal(&self.models_cringe_clone);
-			let d=velocity.dot(n);
-			if d<0f32{
-				(*velocity)-=d/n.length_squared()*n;
-			}
-		}
-	}
-	fn contact_constrain_acceleration(&self,acceleration:&mut glam::Vec3){
-		for contact in self.contacts.iter() {
-			let n=contact.normal(&self.models_cringe_clone);
-			let d=acceleration.dot(n);
-			if d<0f32{
-				(*acceleration)-=d/n.length_squared()*n;
-			}
-		}
-	}
-
-	fn next_strafe_instruction(&self) -> Option<TimedInstruction<PhysicsInstruction>> {
-		return Some(TimedInstruction{
-			time:(self.time*self.strafe_tick_num/self.strafe_tick_den+1)*self.strafe_tick_den/self.strafe_tick_num,
-			//only poll the physics if there is a before and after mouse event
-			instruction:PhysicsInstruction::StrafeTick
-		});
-	}
-
-	//state mutated on collision:
-	//Accelerator
-	//stair step-up
-
-	//state mutated on instruction
-	//change fly acceleration (fly_sustain)
-	//change fly velocity
-
-	//generic event emmiters
-	//PlatformStandTime
-	//walk/swim/air/ladder sounds
-	//VState?
-
-	//falling under the map
-	// fn next_respawn_instruction(&self) -> Option<TimedInstruction<PhysicsInstruction>> {
-	// 	if self.body.position<self.world.min_y {
-	// 		return Some(TimedInstruction{
-	// 			time:self.time,
-	// 			instruction:PhysicsInstruction::Trigger(None)
-	// 		});
-	// 	}
-	// }
-
-	// fn next_water_instruction(&self) -> Option<TimedInstruction<PhysicsInstruction>> {
-	// 	return Some(TimedInstruction{
-	// 		time:(self.time*self.strafe_tick_num/self.strafe_tick_den+1)*self.strafe_tick_den/self.strafe_tick_num,
-	// 		//only poll the physics if there is a before and after mouse event
-	// 		instruction:PhysicsInstruction::Water
-	// 	});
-	// }
-
-	fn next_walk_instruction(&self) -> Option<TimedInstruction<PhysicsInstruction>> {
-		//check if you have a valid walk state and create an instruction
-		if self.grounded{
-			match self.walk.state{
-				WalkEnum::Transient=>Some(TimedInstruction{
-					time:self.walk.target_time,
-					instruction:PhysicsInstruction::ReachWalkTargetVelocity
-				}),
-				WalkEnum::Invalid=>Some(TimedInstruction{
-					time:self.time,
-					instruction:PhysicsInstruction::RefreshWalkTarget,
-				}),
-				WalkEnum::Reached=>None,
-			}
-		}else{
-			return None;
-		}
-	}
-	fn mesh(&self) -> TreyMesh {
-		let mut aabb=Aabb::new();
-		for vertex in Aabb::unit_vertices(){
-			aabb.grow(self.body.position+self.hitbox_halfsize*vertex);
-		}
-		aabb
-	}
-	fn predict_collision_end(&self,time:TIME,time_limit:TIME,collision_data:&RelativeCollision) -> Option<TimedInstruction<PhysicsInstruction>> {
-		//must treat cancollide false objects differently: you may not exit through the same face you entered.
-		//RelativeCollsion must reference the full model instead of a particular face
-		//this is Ctrl+C Ctrl+V of predict_collision_start but with v=-v before the calc and t=-t after the calc
-		//find best t
-		let mut best_time=time_limit;
-		let mut exit_face:Option<TreyMeshFace>=None;
-		let mesh0=self.mesh();
-		let mesh1=self.models_cringe_clone.get(collision_data.model as usize).unwrap().mesh();
-		let (v,a)=(-self.body.velocity,self.body.acceleration);
-		//collect x
-		match collision_data.face {
-			AabbFace::Top|AabbFace::Back|AabbFace::Bottom|AabbFace::Front=>{
-				for t in zeroes2(mesh0.max.x-mesh1.min.x,v.x,0.5*a.x) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&0f32<v.x+a.x*-t{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Left);
-						break;
-					}
-				}
-				for t in zeroes2(mesh0.min.x-mesh1.max.x,v.x,0.5*a.x) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&v.x+a.x*-t<0f32{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Right);
-						break;
-					}
-				}
-			},
-			AabbFace::Left=>{
-				//generate event if v.x<0||a.x<0
-				if -v.x<0f32{
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Left);
-				}
-			},
-			AabbFace::Right=>{
-				//generate event if 0<v.x||0<a.x
-				if 0f32<(-v.x){
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Right);
-				}
-			},
-		}
-		//collect y
-		match collision_data.face {
-			AabbFace::Left|AabbFace::Back|AabbFace::Right|AabbFace::Front=>{
-				for t in zeroes2(mesh0.max.y-mesh1.min.y,v.y,0.5*a.y) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&0f32<v.y+a.y*-t{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Bottom);
-						break;
-					}
-				}
-				for t in zeroes2(mesh0.min.y-mesh1.max.y,v.y,0.5*a.y) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&v.y+a.y*-t<0f32{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Top);
-						break;
-					}
-				}
-			},
-			AabbFace::Bottom=>{
-				//generate event if v.y<0||a.y<0
-				if -v.y<0f32{
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Bottom);
-				}
-			},
-			AabbFace::Top=>{
-				//generate event if 0<v.y||0<a.y
-				if 0f32<(-v.y){
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Top);
-				}
-			},
-		}
-		//collect z
-		match collision_data.face {
-			AabbFace::Left|AabbFace::Bottom|AabbFace::Right|AabbFace::Top=>{
-				for t in zeroes2(mesh0.max.z-mesh1.min.z,v.z,0.5*a.z) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&0f32<v.z+a.z*-t{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Front);
-						break;
-					}
-				}
-				for t in zeroes2(mesh0.min.z-mesh1.max.z,v.z,0.5*a.z) {
-					//negative t = back in time
-					//must be moving towards surface to collide
-					//must beat the current soonest collision time
-					//must be moving towards surface
-					let t_time=self.body.time+((-t as f64)*1_000_000_000f64) as TIME;
-					if time<=t_time&&t_time<best_time&&v.z+a.z*-t<0f32{
-						//collect valid t
-						best_time=t_time;
-						exit_face=Some(TreyMeshFace::Back);
-						break;
-					}
-				}
-			},
-			AabbFace::Front=>{
-				//generate event if v.z<0||a.z<0
-				if -v.z<0f32{
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Front);
-				}
-			},
-			AabbFace::Back=>{
-				//generate event if 0<v.z||0<a.z
-				if 0f32<(-v.z){
-					best_time=time;
-					exit_face=Some(TreyMeshFace::Back);
-				}
-			},
-		}
-		//generate instruction
-		if let Some(face) = exit_face{
-			return Some(TimedInstruction {
-				time: best_time,
-				instruction: PhysicsInstruction::CollisionEnd(collision_data.clone())
-			})
-		}
-		None
-	}
-	fn predict_collision_start(&self,time:TIME,time_limit:TIME,model_id:u32) -> Option<TimedInstruction<PhysicsInstruction>> {
-		//find best t
-		let mut best_time=time_limit;
-		let mut best_face:Option<TreyMeshFace>=None;
-		let mesh0=self.mesh();
-		let mesh1=self.models_cringe_clone.get(model_id as usize).unwrap().mesh();
-		let (p,v,a)=(self.body.position,self.body.velocity,self.body.acceleration);
-		//collect x
-		for t in zeroes2(mesh0.max.x-mesh1.min.x,v.x,0.5*a.x) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&0f32<v.x+a.x*t{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.y<mesh0.max.y+dp.y&&mesh0.min.y+dp.y<mesh1.max.y&&mesh1.min.z<mesh0.max.z+dp.z&&mesh0.min.z+dp.z<mesh1.max.z {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Left);
-					break;
-				}
-			}
-		}
-		for t in zeroes2(mesh0.min.x-mesh1.max.x,v.x,0.5*a.x) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&v.x+a.x*t<0f32{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.y<mesh0.max.y+dp.y&&mesh0.min.y+dp.y<mesh1.max.y&&mesh1.min.z<mesh0.max.z+dp.z&&mesh0.min.z+dp.z<mesh1.max.z {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Right);
-					break;
-				}
-			}
-		}
-		//collect y
-		for t in zeroes2(mesh0.max.y-mesh1.min.y,v.y,0.5*a.y) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&0f32<v.y+a.y*t{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.x<mesh0.max.x+dp.x&&mesh0.min.x+dp.x<mesh1.max.x&&mesh1.min.z<mesh0.max.z+dp.z&&mesh0.min.z+dp.z<mesh1.max.z {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Bottom);
-					break;
-				}
-			}
-		}
-		for t in zeroes2(mesh0.min.y-mesh1.max.y,v.y,0.5*a.y) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&v.y+a.y*t<0f32{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.x<mesh0.max.x+dp.x&&mesh0.min.x+dp.x<mesh1.max.x&&mesh1.min.z<mesh0.max.z+dp.z&&mesh0.min.z+dp.z<mesh1.max.z {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Top);
-					break;
-				}
-			}
-		}
-		//collect z
-		for t in zeroes2(mesh0.max.z-mesh1.min.z,v.z,0.5*a.z) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&0f32<v.z+a.z*t{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.y<mesh0.max.y+dp.y&&mesh0.min.y+dp.y<mesh1.max.y&&mesh1.min.x<mesh0.max.x+dp.x&&mesh0.min.x+dp.x<mesh1.max.x {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Front);
-					break;
-				}
-			}
-		}
-		for t in zeroes2(mesh0.min.z-mesh1.max.z,v.z,0.5*a.z) {
-			//must collide now or in the future
-			//must beat the current soonest collision time
-			//must be moving towards surface
-			let t_time=self.body.time+((t as f64)*1_000_000_000f64) as TIME;
-			if time<=t_time&&t_time<best_time&&v.z+a.z*t<0f32{
-				let dp=self.body.extrapolated_position(t_time)-p;
-				//faces must be overlapping
-				if mesh1.min.y<mesh0.max.y+dp.y&&mesh0.min.y+dp.y<mesh1.max.y&&mesh1.min.x<mesh0.max.x+dp.x&&mesh0.min.x+dp.x<mesh1.max.x {
-					//collect valid t
-					best_time=t_time;
-					best_face=Some(TreyMeshFace::Back);
-					break;
-				}
-			}
-		}
-		//generate instruction
-		if let Some(face) = best_face{
-			return Some(TimedInstruction {
-				time: best_time,
-				instruction: PhysicsInstruction::CollisionStart(RelativeCollision {
-					face,
-					model: model_id
-				})
-			})
-		}
-		None
-	}
-}
-
-impl crate::instruction::InstructionEmitter<PhysicsInstruction> for PhysicsState {
-	//this little next instruction function can cache its return value and invalidate the cached value by watching the State.
-	fn next_instruction(&self,time_limit:TIME) -> Option<TimedInstruction<PhysicsInstruction>> {
-		//JUST POLLING!!! NO MUTATION
-		let mut collector = crate::instruction::InstructionCollector::new(time_limit);
-		//check for collision stop instructions with curent contacts
-		for collision_data in self.contacts.iter() {
-			collector.collect(self.predict_collision_end(self.time,time_limit,collision_data));
-		}
-		//check for collision start instructions (against every part in the game with no optimization!!)
-		for i in 0..self.models_cringe_clone.len() {
-			collector.collect(self.predict_collision_start(self.time,time_limit,i as u32));
-		}
-		if self.grounded {
-			//walk maintenance
-			collector.collect(self.next_walk_instruction());
-		}else{
-			//check to see when the next strafe tick is
-			collector.collect(self.next_strafe_instruction());
-		}
-		collector.instruction()
-	}
-}
-
-impl crate::instruction::InstructionConsumer<PhysicsInstruction> for PhysicsState {
-	fn process_instruction(&mut self, ins:TimedInstruction<PhysicsInstruction>) {
-		match &ins.instruction {
-		    PhysicsInstruction::StrafeTick => (),
-		    _=>println!("{:?}",ins),
-		}
-		//selectively update body
-		match &ins.instruction {
-		    PhysicsInstruction::SetWalkTargetVelocity(_)
-		    |PhysicsInstruction::SetControlDir(_) => self.time=ins.time,//TODO: queue instructions
-		    PhysicsInstruction::RefreshWalkTarget
-		    |PhysicsInstruction::ReachWalkTargetVelocity
-		    |PhysicsInstruction::CollisionStart(_)
-		    |PhysicsInstruction::CollisionEnd(_)
-		    |PhysicsInstruction::StrafeTick
-		    |PhysicsInstruction::Jump => self.advance_time(ins.time),
-		}
-		match ins.instruction {
-			PhysicsInstruction::CollisionStart(c) => {
-				//check ground
-				match &c.face {
-			        AabbFace::Top => {
-			        	//ground
-			        	self.grounded=true;
-			        },
-			        _ => (),
-			    }
-			    self.contacts.insert(c);
-				//flatten v
-				let mut v=self.body.velocity;
-				self.contact_constrain_velocity(&mut v);
-				self.body.velocity=v;
-				self.walk.state=WalkEnum::Invalid;
-			},
-			PhysicsInstruction::CollisionEnd(c) => {
-			    self.contacts.remove(&c);//remove contact before calling contact_constrain_acceleration
-				let mut a=self.gravity;
-				self.contact_constrain_acceleration(&mut a);
-				self.body.acceleration=a;
-				self.walk.state=WalkEnum::Invalid;
-				//check ground
-				match &c.face {
-			        AabbFace::Top => {
-			        	self.grounded=false;
-			        },
-			        _ => (),
-			    }
-			},
-			PhysicsInstruction::SetControlDir(control_dir)=>{
-				self.temp_control_dir=control_dir;
-				self.walk.state=WalkEnum::Invalid;
-			},
-			PhysicsInstruction::StrafeTick => {
-				//let control_dir=self.get_control_dir();//this should respect your mouse interpolation settings
-				let d=self.body.velocity.dot(self.temp_control_dir);
-				if d<self.mv {
-					let mut v=self.body.velocity+(self.mv-d)*self.temp_control_dir;
-					self.contact_constrain_velocity(&mut v);
-					self.body.velocity=v;
-				}
-			}
-			PhysicsInstruction::Jump => {
-				self.grounded=false;//do I need this?
-				let mut v=self.body.velocity+glam::Vec3::new(0.0,0.715588/2.0*100.0,0.0);
-				self.contact_constrain_velocity(&mut v);
-				self.body.velocity=v;
-				self.walk.state=WalkEnum::Invalid;
-			},
-			PhysicsInstruction::ReachWalkTargetVelocity => {
-				//precisely set velocity
-				let mut a=glam::Vec3::ZERO;
-				self.contact_constrain_acceleration(&mut a);
-				self.body.acceleration=a;
-				let mut v=self.walk.target_velocity;
-				self.contact_constrain_velocity(&mut v);
-				self.body.velocity=v;
-				self.walk.state=WalkEnum::Reached;
-			},
-			PhysicsInstruction::RefreshWalkTarget => {
-				//calculate acceleration yada yada
-				if self.grounded{
-					let mut v=self.walk.target_velocity;
-					self.contact_constrain_velocity(&mut v);
-					let mut target_diff=v-self.body.velocity;
-					target_diff.y=0f32;
-					if target_diff==glam::Vec3::ZERO{
-						let mut a=glam::Vec3::ZERO;
-						self.contact_constrain_acceleration(&mut a);
-						self.body.acceleration=a;
-						self.walk.state=WalkEnum::Reached;
-					}else{
-						let accel=self.walk_accel.min(self.gravity.length()*self.friction);
-						let time_delta=target_diff.length()/accel;
-						let mut a=target_diff/time_delta;
-						self.contact_constrain_acceleration(&mut a);
-						self.body.acceleration=a;
-						self.walk.target_time=self.body.time+((time_delta as f64)*1_000_000_000f64) as TIME;
-						self.walk.state=WalkEnum::Transient;
-					}
-				}
-			},
-			PhysicsInstruction::SetWalkTargetVelocity(v) => {
-				self.walk.target_velocity=v;
-				self.walk.state=WalkEnum::Invalid;
-			},
-		}
-	}
-}

src/bvh.rs

@@ -0,0 +1,107 @@
+use crate::aabb::Aabb;
+
+//da algaritum
+//lista boxens
+//sort by {minx,maxx,miny,maxy,minz,maxz} (6 lists)
+//find the sets that minimizes the sum of surface areas
+//splitting is done when the minimum split sum of surface areas is larger than the node's own surface area
+
+//start with bisection into octrees because a bad bvh is still 1000x better than no bvh
+//sort the centerpoints on each axis (3 lists)
+//bv is put into octant based on whether it is upper or lower in each list
+#[derive(Default)]
+pub struct BvhNode{
+	children:Vec<Self>,
+	models:Vec<u32>,
+	aabb:Aabb,
+}
+
+impl BvhNode{
+	pub fn the_tester<F:FnMut(u32)>(&self,aabb:&Aabb,f:&mut F){
+		for &model in &self.models{
+			f(model);
+		}
+		for child in &self.children{
+			if aabb.intersects(&child.aabb){
+				child.the_tester(aabb,f);
+			}
+		}
+	}
+}
+
+pub fn generate_bvh(boxen:Vec<Aabb>)->BvhNode{
+	generate_bvh_node(boxen.into_iter().enumerate().collect())
+}
+
+fn generate_bvh_node(boxen:Vec<(usize,Aabb)>)->BvhNode{
+	let n=boxen.len();
+	if n<20{
+		let mut aabb=Aabb::new();
+		let models=boxen.into_iter().map(|b|{aabb.join(&b.1);b.0 as u32}).collect();
+		BvhNode{
+			children:Vec::new(),
+			models,
+			aabb,
+		}
+	}else{
+		let mut octant=std::collections::HashMap::with_capacity(n);//this ids which octant the boxen is put in
+		let mut sort_x=Vec::with_capacity(n);
+		let mut sort_y=Vec::with_capacity(n);
+		let mut sort_z=Vec::with_capacity(n);
+		for (i,aabb) in boxen.iter(){
+			let center=aabb.center();
+			octant.insert(*i,0);
+			sort_x.push((*i,center.x));
+			sort_y.push((*i,center.y));
+			sort_z.push((*i,center.z));
+		}
+		sort_x.sort_by(|tup0,tup1|tup0.1.partial_cmp(&tup1.1).unwrap());
+		sort_y.sort_by(|tup0,tup1|tup0.1.partial_cmp(&tup1.1).unwrap());
+		sort_z.sort_by(|tup0,tup1|tup0.1.partial_cmp(&tup1.1).unwrap());
+		let h=n/2;
+		let median_x=sort_x[h].1;
+		let median_y=sort_y[h].1;
+		let median_z=sort_z[h].1;
+		for (i,c) in sort_x{
+			if median_x<c{
+				octant.insert(i,octant[&i]+1<<0);
+			}
+		}
+		for (i,c) in sort_y{
+			if median_y<c{
+				octant.insert(i,octant[&i]+1<<1);
+			}
+		}
+		for (i,c) in sort_z{
+			if median_z<c{
+				octant.insert(i,octant[&i]+1<<2);
+			}
+		}
+		//generate lists for unique octant values
+		let mut list_list=Vec::with_capacity(8);
+		let mut octant_list=Vec::with_capacity(8);
+		for (i,aabb) in boxen.into_iter(){
+			let octant_id=octant[&i];
+			let list_id=if let Some(list_id)=octant_list.iter().position(|&id|id==octant_id){
+				list_id
+			}else{
+				let list_id=list_list.len();
+				octant_list.push(octant_id);
+				list_list.push(Vec::new());
+				list_id
+			};
+			list_list[list_id].push((i,aabb));
+		}
+		let mut aabb=Aabb::new();
+		let children=list_list.into_iter().map(|b|{
+			let node=generate_bvh_node(b);
+			aabb.join(&node.aabb);
+			node
+		}).collect();
+		BvhNode{
+			children,
+			models:Vec::new(),
+			aabb,
+		}
+	}
+}

src/framework.rs

@@ -1,12 +1,10 @@
 use std::future::Future;
 #[cfg(target_arch = "wasm32")]
 use std::str::FromStr;
-#[cfg(not(target_arch = "wasm32"))]
-use std::time::Instant;
 #[cfg(target_arch = "wasm32")]
 use web_sys::{ImageBitmapRenderingContext, OffscreenCanvas};
 use winit::{
-	event::{self, WindowEvent},
+	event::{self, WindowEvent, DeviceEvent},
 	event_loop::{ControlFlow, EventLoop},
 };
 
@@ -53,8 +51,9 @@ pub trait Example: 'static + Sized {
 		device: &wgpu::Device,
 		queue: &wgpu::Queue,
 	);
-	fn update(&mut self, event: WindowEvent);
+	fn update(&mut self, window: &winit::window::Window, device: &wgpu::Device, queue: &wgpu::Queue, event: WindowEvent);
-	fn move_mouse(&mut self, delta: (f64,f64));
+	fn device_event(&mut self, window: &winit::window::Window, event: DeviceEvent);
+	fn load_file(&mut self, path:std::path::PathBuf, device: &wgpu::Device, queue: &wgpu::Queue);
 	fn render(
 		&mut self,
 		view: &wgpu::TextureView,
@@ -181,9 +180,41 @@ async fn setup<E: Example>(title: &str) -> Setup {
 
 		(size, surface)
 	};
-	let adapter = wgpu::util::initialize_adapter_from_env_or_default(&instance, Some(&surface))
+
-		.await
+	let adapter;
-		.expect("No suitable GPU adapters found on the system!");
+
+	let optional_features = E::optional_features();
+	let required_features = E::required_features();
+
+	//no helper function smh gotta write it myself
+	let adapters = instance.enumerate_adapters(backends);
+
+	let mut chosen_adapter = None;
+	let mut chosen_adapter_score=0;
+	for adapter in adapters {
+		if !adapter.is_surface_supported(&surface) {
+			continue;
+		}
+
+		let score=match adapter.get_info().device_type{
+			wgpu::DeviceType::IntegratedGpu=>3,
+			wgpu::DeviceType::DiscreteGpu=>4,
+			wgpu::DeviceType::VirtualGpu=>2,
+			wgpu::DeviceType::Other|wgpu::DeviceType::Cpu=>1,
+		};
+
+		let adapter_features = adapter.features();
+		if chosen_adapter_score<score&&adapter_features.contains(required_features) {
+			chosen_adapter_score=score;
+			chosen_adapter=Some(adapter);
+		}
+	}
+
+	if let Some(maybe_chosen_adapter) = chosen_adapter{
+		adapter=maybe_chosen_adapter;
+	}else{
+		panic!("No suitable GPU adapters found on the system!");
+	}
 
 	#[cfg(not(target_arch = "wasm32"))]
 	{
@@ -191,15 +222,6 @@ async fn setup<E: Example>(title: &str) -> Setup {
 		println!("Using {} ({:?})", adapter_info.name, adapter_info.backend);
 	}
 
-	let optional_features = E::optional_features();
-	let required_features = E::required_features();
-	let adapter_features = adapter.features();
-	assert!(
-		adapter_features.contains(required_features),
-		"Adapter does not support required features for this example: {:?}",
-		required_features - adapter_features
-	);
-
 	let required_downlevel_capabilities = E::required_downlevel_capabilities();
 	let downlevel_capabilities = adapter.get_downlevel_capabilities();
 	assert!(
@@ -223,7 +245,7 @@ async fn setup<E: Example>(title: &str) -> Setup {
 		.request_device(
 			&wgpu::DeviceDescriptor {
 				label: None,
-				features: (optional_features & adapter_features) | required_features,
+				features: (optional_features & adapter.features()) | required_features,
 				limits: needed_limits,
 			},
 			trace_dir.ok().as_ref().map(std::path::Path::new),
@@ -337,7 +359,7 @@ fn start<E: Example>(
 				WindowEvent::KeyboardInput {
 					input:
 						event::KeyboardInput {
-							virtual_keycode: Some(event::VirtualKeyCode::R),
+							virtual_keycode: Some(event::VirtualKeyCode::Scroll),
 							state: event::ElementState::Pressed,
 							..
 						},
@@ -346,17 +368,14 @@ fn start<E: Example>(
 					println!("{:#?}", instance.generate_report());
 				}
 				_ => {
-					example.update(event);
+					example.update(&window,&device,&queue,event);
 				}
 			},
 			event::Event::DeviceEvent {
-				event:
+				event,
-					winit::event::DeviceEvent::MouseMotion {
-						delta,
-					},
 				..
 			} => {
-				example.move_mouse(delta);
+				example.device_event(&window,event);
 			},
 			event::Event::RedrawRequested(_) => {
 

src/instruction.rs

@@ -1,11 +1,11 @@
 #[derive(Debug)]
 pub struct TimedInstruction<I> {
-	pub time: crate::body::TIME,
+	pub time: crate::physics::TIME,
 	pub instruction: I,
 }
 
 pub trait InstructionEmitter<I> {
-	fn next_instruction(&self, time_limit:crate::body::TIME) -> Option<TimedInstruction<I>>;
+	fn next_instruction(&self, time_limit:crate::physics::TIME) -> Option<TimedInstruction<I>>;
 }
 pub trait InstructionConsumer<I> {
 	fn process_instruction(&mut self, instruction:TimedInstruction<I>);
@@ -13,11 +13,11 @@ pub trait InstructionConsumer<I> {
 
 //PROPER PRIVATE FIELDS!!!
 pub struct InstructionCollector<I> {
-	time: crate::body::TIME,
+	time: crate::physics::TIME,
 	instruction: Option<I>,
 }
 impl<I> InstructionCollector<I> {
-	pub fn new(time:crate::body::TIME) -> Self {
+	pub fn new(time:crate::physics::TIME) -> Self {
 		Self{
 			time,
 			instruction:None

src/lib.rs

@@ -1,4 +0,0 @@
-pub mod framework;
-pub mod body;
-pub mod zeroes;
-pub mod instruction;

src/load_roblox.rs

@@ -0,0 +1,478 @@
+use crate::primitives;
+
+fn class_is_a(class: &str, superclass: &str) -> bool {
+	if class==superclass {
+		return true
+	}
+	let class_descriptor=rbx_reflection_database::get().classes.get(class);
+	if let Some(descriptor) = &class_descriptor {
+		if let Some(class_super) = &descriptor.superclass {
+			return class_is_a(&class_super, superclass)
+		}
+	}
+	return false
+}
+fn recursive_collect_superclass(objects: &mut std::vec::Vec<rbx_dom_weak::types::Ref>,dom: &rbx_dom_weak::WeakDom, instance: &rbx_dom_weak::Instance, superclass: &str){
+	for &referent in instance.children() {
+		if let Some(c) = dom.get_by_ref(referent) {
+			if class_is_a(c.class.as_str(), superclass) {
+				objects.push(c.referent());//copy ref
+			}
+			recursive_collect_superclass(objects,dom,c,superclass);
+		}
+	}
+}
+fn get_texture_refs(dom:&rbx_dom_weak::WeakDom) -> Vec<rbx_dom_weak::types::Ref>{
+	let mut objects = std::vec::Vec::new();
+	recursive_collect_superclass(&mut objects, dom, dom.root(),"Decal");
+	//get ids
+	//clear vec
+	//next class
+	objects
+}
+fn get_attributes(name:&str,can_collide:bool,velocity:glam::Vec3,force_intersecting:bool)->crate::model::CollisionAttributes{
+	let mut general=crate::model::GameMechanicAttributes::default();
+	let mut intersecting=crate::model::IntersectingAttributes::default();
+	let mut contacting=crate::model::ContactingAttributes::default();
+	let mut force_can_collide=can_collide;
+	match name{
+		//"Water"=>intersecting.water=Some(crate::model::IntersectingWater{density:1.0,drag:1.0}),
+		"Accelerator"=>{force_can_collide=false;intersecting.accelerator=Some(crate::model::IntersectingAccelerator{acceleration:velocity})},
+		"MapFinish"=>{force_can_collide=false;general.zone=Some(crate::model::GameMechanicZone{mode_id:0,behaviour:crate::model::ZoneBehaviour::Finish})},
+		"MapAnticheat"=>{force_can_collide=false;general.zone=Some(crate::model::GameMechanicZone{mode_id:0,behaviour:crate::model::ZoneBehaviour::Anitcheat})},
+		"Platform"=>general.stage_element=Some(crate::model::GameMechanicStageElement{
+			mode_id:0,
+			stage_id:0,
+			force:false,
+			behaviour:crate::model::StageElementBehaviour::Platform,
+		}),
+		other=>{
+			if let Some(captures)=lazy_regex::regex!(r"^(Force)?(Spawn|SpawnAt|Trigger|Teleport|Platform)(\d+)$")
+			.captures(other){
+				general.stage_element=Some(crate::model::GameMechanicStageElement{
+					mode_id:0,
+					stage_id:captures[3].parse::<u32>().unwrap(),
+					force:match captures.get(1){
+						Some(m)=>m.as_str()=="Force",
+						None=>false,
+					},
+					behaviour:match &captures[2]{
+						"Spawn"|"SpawnAt"=>crate::model::StageElementBehaviour::SpawnAt,
+						"Trigger"=>{force_can_collide=false;crate::model::StageElementBehaviour::Trigger},
+						"Teleport"=>{force_can_collide=false;crate::model::StageElementBehaviour::Teleport},
+						"Platform"=>crate::model::StageElementBehaviour::Platform,
+						_=>panic!("regex1[2] messed up bad"),
+					}
+				})
+			}else if let Some(captures)=lazy_regex::regex!(r"^Bonus(Finish|Anticheat)(\d+)$")
+			.captures(other){
+				force_can_collide=false;
+				match &captures[1]{
+					"Finish"=>general.zone=Some(crate::model::GameMechanicZone{mode_id:captures[2].parse::<u32>().unwrap(),behaviour:crate::model::ZoneBehaviour::Finish}),
+					"Anticheat"=>general.zone=Some(crate::model::GameMechanicZone{mode_id:captures[2].parse::<u32>().unwrap(),behaviour:crate::model::ZoneBehaviour::Anitcheat}),
+					_=>panic!("regex2[1] messed up bad"),
+				}
+			}
+		}
+	}
+	//need some way to skip this
+	if velocity!=glam::Vec3::ZERO{
+		general.booster=Some(crate::model::GameMechanicBooster{velocity});
+	}
+	match force_can_collide{
+		true=>{
+			match name{
+				//"Bounce"=>(),
+				"Surf"=>contacting.surf=Some(crate::model::ContactingSurf{}),
+				"Ladder"=>contacting.ladder=Some(crate::model::ContactingLadder{sticky:true}),
+				other=>{
+					//REGEX!!!!
+					//Jump#
+					//WormholeIn#
+				}
+			}
+			crate::model::CollisionAttributes::Contact{contacting,general}
+		},
+		false=>if force_intersecting
+		||general.jump_limit.is_some()
+		||general.booster.is_some()
+		||general.zone.is_some()
+		||general.stage_element.is_some()
+		||general.wormhole.is_some()
+		||intersecting.water.is_some()
+		||intersecting.accelerator.is_some()
+		{
+			crate::model::CollisionAttributes::Intersect{intersecting,general}
+		}else{
+			crate::model::CollisionAttributes::Decoration
+		},
+	}
+}
+
+struct RobloxAssetId(u64);
+struct RobloxAssetIdParseErr;
+impl std::str::FromStr for RobloxAssetId {
+	type Err=RobloxAssetIdParseErr;
+	fn from_str(s: &str) -> Result<Self, Self::Err>{
+		let regman=lazy_regex::regex!(r"(\d+)$");
+		if let Some(captures) = regman.captures(s) {
+			if captures.len()==2{//captures[0] is all captures concatenated, and then each individual capture
+				if let Ok(id) = captures[0].parse::<u64>() {
+					return Ok(Self(id));
+				}
+			}
+		}
+		Err(RobloxAssetIdParseErr)
+	}
+}
+#[derive(Clone,Copy,PartialEq)]
+struct RobloxTextureTransform{
+	offset_u:f32,
+	offset_v:f32,
+	scale_u:f32,
+	scale_v:f32,
+}
+impl std::cmp::Eq for RobloxTextureTransform{}//????
+impl std::default::Default for RobloxTextureTransform{
+    fn default() -> Self {
+        Self{offset_u:0.0,offset_v:0.0,scale_u:1.0,scale_v:1.0}
+    }
+}
+impl std::hash::Hash for RobloxTextureTransform {
+	fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+		self.offset_u.to_ne_bytes().hash(state);
+		self.offset_v.to_ne_bytes().hash(state);
+		self.scale_u.to_ne_bytes().hash(state);
+		self.scale_v.to_ne_bytes().hash(state);
+	}
+}
+#[derive(Clone,PartialEq)]
+struct RobloxFaceTextureDescription{
+	texture:u32,
+	color:glam::Vec4,
+	transform:RobloxTextureTransform,
+}
+impl std::cmp::Eq for RobloxFaceTextureDescription{}//????
+impl std::hash::Hash for RobloxFaceTextureDescription {
+	fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+		self.texture.hash(state);
+		self.transform.hash(state);
+        for &el in self.color.as_ref().iter() {
+            el.to_ne_bytes().hash(state);
+        }
+    }
+}
+impl RobloxFaceTextureDescription{
+	fn to_face_description(&self)->primitives::FaceDescription{
+		primitives::FaceDescription{
+			texture:Some(self.texture),
+			transform:glam::Affine2::from_translation(
+				glam::vec2(self.transform.offset_u,self.transform.offset_v)
+			)
+			*glam::Affine2::from_scale(
+				glam::vec2(self.transform.scale_u,self.transform.scale_v)
+			),
+			color:self.color,
+		}
+	}
+}
+type RobloxPartDescription=[Option<RobloxFaceTextureDescription>;6];
+type RobloxWedgeDescription=[Option<RobloxFaceTextureDescription>;5];
+type RobloxCornerWedgeDescription=[Option<RobloxFaceTextureDescription>;5];
+#[derive(Clone,Eq,Hash,PartialEq)]
+enum RobloxBasePartDescription{
+	Sphere,
+	Part(RobloxPartDescription),
+	Cylinder,
+	Wedge(RobloxWedgeDescription),
+	CornerWedge(RobloxCornerWedgeDescription),
+}
+pub fn generate_indexed_models(dom:rbx_dom_weak::WeakDom) -> crate::model::IndexedModelInstances{
+	//IndexedModelInstances includes textures
+	let mut spawn_point=glam::Vec3::ZERO;
+
+	let mut indexed_models=Vec::new();
+	let mut model_id_from_description=std::collections::HashMap::<RobloxBasePartDescription,usize>::new();
+
+	let mut texture_id_from_asset_id=std::collections::HashMap::<u64,u32>::new();
+	let mut asset_id_from_texture_id=Vec::new();
+
+	let mut object_refs=Vec::new();
+	let mut temp_objects=Vec::new();
+	recursive_collect_superclass(&mut object_refs, &dom, dom.root(),"BasePart");
+	for object_ref in object_refs {
+		if let Some(object)=dom.get_by_ref(object_ref){
+			if let (
+					Some(rbx_dom_weak::types::Variant::CFrame(cf)),
+					Some(rbx_dom_weak::types::Variant::Vector3(size)),
+					Some(rbx_dom_weak::types::Variant::Vector3(velocity)),
+					Some(rbx_dom_weak::types::Variant::Float32(transparency)),
+					Some(rbx_dom_weak::types::Variant::Color3uint8(color3)),
+					Some(rbx_dom_weak::types::Variant::Bool(can_collide)),
+				) = (
+					object.properties.get("CFrame"),
+					object.properties.get("Size"),
+					object.properties.get("Velocity"),
+					object.properties.get("Transparency"),
+					object.properties.get("Color"),
+					object.properties.get("CanCollide"),
+				)
+			{
+				let model_transform=glam::Affine3A::from_translation(
+					glam::Vec3::new(cf.position.x,cf.position.y,cf.position.z)
+				)
+				* glam::Affine3A::from_mat3(
+					glam::Mat3::from_cols(
+						glam::Vec3::new(cf.orientation.x.x,cf.orientation.y.x,cf.orientation.z.x),
+						glam::Vec3::new(cf.orientation.x.y,cf.orientation.y.y,cf.orientation.z.y),
+						glam::Vec3::new(cf.orientation.x.z,cf.orientation.y.z,cf.orientation.z.z),
+					),
+				)
+				* glam::Affine3A::from_scale(
+					glam::Vec3::new(size.x,size.y,size.z)/2.0
+				);
+
+				//push TempIndexedAttributes
+				let mut force_intersecting=false;
+				let mut temp_indexing_attributes=Vec::new();
+				if let Some(attr)=match &object.name[..]{
+					"MapStart"=>{
+						spawn_point=model_transform.transform_point3(glam::Vec3::ZERO)+glam::vec3(0.0,2.5,0.0);
+						Some(crate::model::TempIndexedAttributes::Start{mode_id:0})
+					},
+					"UnorderedCheckpoint"=>Some(crate::model::TempIndexedAttributes::UnorderedCheckpoint{mode_id:0}),
+					other=>{
+						let regman=lazy_regex::regex!(r"^(BonusStart|Spawn|ForceSpawn|OrderedCheckpoint)(\d+)$");
+						if let Some(captures) = regman.captures(other) {
+							match &captures[1]{
+								"BonusStart"=>Some(crate::model::TempIndexedAttributes::Start{mode_id:captures[2].parse::<u32>().unwrap()}),
+								"Spawn"|"ForceSpawn"=>Some(crate::model::TempIndexedAttributes::Spawn{mode_id:0,stage_id:captures[2].parse::<u32>().unwrap()}),
+								"OrderedCheckpoint"=>Some(crate::model::TempIndexedAttributes::OrderedCheckpoint{mode_id:0,checkpoint_id:captures[2].parse::<u32>().unwrap()}),
+								_=>None,
+							}
+						}else{
+							None
+						}
+					}
+				}{
+					force_intersecting=true;
+					temp_indexing_attributes.push(attr);
+				}
+
+				//TODO: also detect "CylinderMesh" etc here
+				let shape=match &object.class[..]{
+					"Part"=>{
+						if let Some(rbx_dom_weak::types::Variant::Enum(shape))=object.properties.get("Shape"){
+							match shape.to_u32(){
+								0=>primitives::Primitives::Sphere,
+								1=>primitives::Primitives::Cube,
+								2=>primitives::Primitives::Cylinder,
+								3=>primitives::Primitives::Wedge,
+								4=>primitives::Primitives::CornerWedge,
+								_=>panic!("Funky roblox PartType={};",shape.to_u32()),
+							}
+						}else{
+							panic!("Part has no Shape!");
+						}
+					},
+					"WedgePart"=>primitives::Primitives::Wedge,
+					"CornerWedgePart"=>primitives::Primitives::CornerWedge,
+					_=>{
+						println!("Unsupported BasePart ClassName={}; defaulting to cube",object.class);
+						primitives::Primitives::Cube
+					}
+				};
+
+				//use the biggest one and cut it down later...
+				let mut part_texture_description:RobloxPartDescription=[None,None,None,None,None,None];
+				temp_objects.clear();
+				recursive_collect_superclass(&mut temp_objects, &dom, object,"Decal");
+				for &decal_ref in &temp_objects{
+					if let Some(decal)=dom.get_by_ref(decal_ref){
+						if let (
+							Some(rbx_dom_weak::types::Variant::Content(content)),
+							Some(rbx_dom_weak::types::Variant::Enum(normalid)),
+							Some(rbx_dom_weak::types::Variant::Color3(decal_color3)),
+							Some(rbx_dom_weak::types::Variant::Float32(decal_transparency)),
+						) = (
+							decal.properties.get("Texture"),
+							decal.properties.get("Face"),
+							decal.properties.get("Color3"),
+							decal.properties.get("Transparency"),
+						) {
+							if let Ok(asset_id)=content.clone().into_string().parse::<RobloxAssetId>(){
+								let texture_id=if let Some(&texture_id)=texture_id_from_asset_id.get(&asset_id.0){
+									texture_id
+								}else{
+									let texture_id=asset_id_from_texture_id.len() as u32;
+									texture_id_from_asset_id.insert(asset_id.0,texture_id);
+									asset_id_from_texture_id.push(asset_id.0);
+									texture_id
+								};
+								let normal_id=normalid.to_u32();
+								if normal_id<6{
+									let (roblox_texture_color,roblox_texture_transform)=if decal.class=="Texture"{
+										//generate tranform
+										if let (
+												Some(rbx_dom_weak::types::Variant::Float32(ox)),
+												Some(rbx_dom_weak::types::Variant::Float32(oy)),
+												Some(rbx_dom_weak::types::Variant::Float32(sx)),
+												Some(rbx_dom_weak::types::Variant::Float32(sy)),
+											) = (
+												decal.properties.get("OffsetStudsU"),
+												decal.properties.get("OffsetStudsV"),
+												decal.properties.get("StudsPerTileU"),
+												decal.properties.get("StudsPerTileV"),
+											)
+										{
+											let (size_u,size_v)=match normal_id{
+												0=>(size.z,size.y),//right
+												1=>(size.x,size.z),//top
+												2=>(size.x,size.y),//back
+												3=>(size.z,size.y),//left
+												4=>(size.x,size.z),//bottom
+												5=>(size.x,size.y),//front
+												_=>panic!("unreachable"),
+											};
+											(
+												glam::vec4(decal_color3.r,decal_color3.g,decal_color3.b,1.0-*decal_transparency),
+												RobloxTextureTransform{
+													offset_u:*ox/(*sx),offset_v:*oy/(*sy),
+													scale_u:size_u/(*sx),scale_v:size_v/(*sy),
+												}
+											)
+										}else{
+											(glam::Vec4::ONE,RobloxTextureTransform::default())
+										}
+									}else{
+										(glam::Vec4::ONE,RobloxTextureTransform::default())
+									};
+									part_texture_description[normal_id as usize]=Some(RobloxFaceTextureDescription{
+										texture:texture_id,
+										color:roblox_texture_color,
+										transform:roblox_texture_transform,
+									});
+								}else{
+									println!("NormalId={} unsupported for shape={:?}",normal_id,shape);
+								}
+							}
+						}
+					}
+				}
+				//obscure rust syntax "slice pattern"
+				let [
+					f0,//Cube::Right
+					f1,//Cube::Top
+					f2,//Cube::Back
+					f3,//Cube::Left
+					f4,//Cube::Bottom
+					f5,//Cube::Front
+				]=part_texture_description;
+				let basepart_texture_description=match shape{
+					primitives::Primitives::Sphere=>RobloxBasePartDescription::Sphere,
+					primitives::Primitives::Cube=>RobloxBasePartDescription::Part([f0,f1,f2,f3,f4,f5]),
+					primitives::Primitives::Cylinder=>RobloxBasePartDescription::Cylinder,
+					//use front face texture first and use top face texture as a fallback
+					primitives::Primitives::Wedge=>RobloxBasePartDescription::Wedge([
+						f0,//Cube::Right->Wedge::Right
+						if f5.is_some(){f5}else{f1},//Cube::Front|Cube::Top->Wedge::TopFront
+						f2,//Cube::Back->Wedge::Back
+						f3,//Cube::Left->Wedge::Left
+						f4,//Cube::Bottom->Wedge::Bottom
+					]),
+					//TODO: fix Left+Back texture coordinates to match roblox when not overwridden by Top
+					primitives::Primitives::CornerWedge=>RobloxBasePartDescription::CornerWedge([
+						f0,//Cube::Right->CornerWedge::Right
+						if f2.is_some(){f2}else{f1.clone()},//Cube::Back|Cube::Top->CornerWedge::TopBack
+						if f3.is_some(){f3}else{f1},//Cube::Left|Cube::Top->CornerWedge::TopLeft
+						f4,//Cube::Bottom->CornerWedge::Bottom
+						f5,//Cube::Front->CornerWedge::Front
+					]),
+				};
+				//make new model if unit cube has not been created before
+				let model_id=if let Some(&model_id)=model_id_from_description.get(&basepart_texture_description){
+					//push to existing texture model
+					model_id
+				}else{
+					let model_id=indexed_models.len();
+					model_id_from_description.insert(basepart_texture_description.clone(),model_id);//borrow checker going crazy
+					indexed_models.push(match basepart_texture_description{
+						RobloxBasePartDescription::Sphere=>primitives::unit_sphere(),
+						RobloxBasePartDescription::Part(part_texture_description)=>{
+							let mut cube_face_description=primitives::CubeFaceDescription::new();
+							for (face_id,roblox_face_description) in part_texture_description.iter().enumerate(){
+								cube_face_description.insert(
+								match face_id{
+									0=>primitives::CubeFace::Right,
+									1=>primitives::CubeFace::Top,
+									2=>primitives::CubeFace::Back,
+									3=>primitives::CubeFace::Left,
+									4=>primitives::CubeFace::Bottom,
+									5=>primitives::CubeFace::Front,
+									_=>panic!("unreachable"),
+								},
+								match roblox_face_description{
+									Some(roblox_texture_transform)=>roblox_texture_transform.to_face_description(),
+									None=>primitives::FaceDescription::default(),
+								});
+							}
+							primitives::generate_partial_unit_cube(cube_face_description)
+						},
+						RobloxBasePartDescription::Cylinder=>primitives::unit_cylinder(),
+						RobloxBasePartDescription::Wedge(wedge_texture_description)=>{
+							let mut wedge_face_description=primitives::WedgeFaceDescription::new();
+							for (face_id,roblox_face_description) in wedge_texture_description.iter().enumerate(){
+								wedge_face_description.insert(
+								match face_id{
+									0=>primitives::WedgeFace::Right,
+									1=>primitives::WedgeFace::TopFront,
+									2=>primitives::WedgeFace::Back,
+									3=>primitives::WedgeFace::Left,
+									4=>primitives::WedgeFace::Bottom,
+									_=>panic!("unreachable"),
+								},
+								match roblox_face_description{
+									Some(roblox_texture_transform)=>roblox_texture_transform.to_face_description(),
+									None=>primitives::FaceDescription::default(),
+								});
+							}
+							primitives::generate_partial_unit_wedge(wedge_face_description)
+						},
+						RobloxBasePartDescription::CornerWedge(cornerwedge_texture_description)=>{
+							let mut cornerwedge_face_description=primitives::CornerWedgeFaceDescription::new();
+							for (face_id,roblox_face_description) in cornerwedge_texture_description.iter().enumerate(){
+								cornerwedge_face_description.insert(
+								match face_id{
+									0=>primitives::CornerWedgeFace::Right,
+									1=>primitives::CornerWedgeFace::TopBack,
+									2=>primitives::CornerWedgeFace::TopLeft,
+									3=>primitives::CornerWedgeFace::Bottom,
+									4=>primitives::CornerWedgeFace::Front,
+									_=>panic!("unreachable"),
+								},
+								match roblox_face_description{
+									Some(roblox_texture_transform)=>roblox_texture_transform.to_face_description(),
+									None=>primitives::FaceDescription::default(),
+								});
+							}
+							primitives::generate_partial_unit_cornerwedge(cornerwedge_face_description)
+						},
+					});
+					model_id
+				};
+				indexed_models[model_id].instances.push(crate::model::ModelInstance {
+					transform:model_transform,
+					color:glam::vec4(color3.r as f32/255f32, color3.g as f32/255f32, color3.b as f32/255f32, 1.0-*transparency),
+					attributes:get_attributes(&object.name,*can_collide,glam::vec3(velocity.x,velocity.y,velocity.z),force_intersecting),
+					temp_indexing:temp_indexing_attributes,
+				});
+			}
+		}
+	}
+	crate::model::IndexedModelInstances{
+		textures:asset_id_from_texture_id.iter().map(|t|t.to_string()).collect(),
+		models:indexed_models,
+		spawn_point,
+		modes:Vec::new(),
+	}
+}

src/model.rs

@@ -0,0 +1,269 @@
+use bytemuck::{Pod, Zeroable};
+#[derive(Clone, Copy, Pod, Zeroable)]
+#[repr(C)]
+pub struct Vertex {
+	pub pos: [f32; 3],
+	pub tex: [f32; 2],
+	pub normal: [f32; 3],
+	pub color: [f32; 4],
+}
+#[derive(Clone,Hash,PartialEq,Eq)]
+pub struct IndexedVertex{
+	pub pos:u32,
+	pub tex:u32,
+	pub normal:u32,
+	pub color:u32,
+}
+pub struct IndexedPolygon{
+	pub vertices:Vec<u32>,
+}
+pub struct IndexedGroup{
+	pub texture:Option<u32>,//RenderPattern? material/texture/shader/flat color
+	pub polys:Vec<IndexedPolygon>,
+}
+pub struct IndexedModel{
+	pub unique_pos:Vec<[f32; 3]>,
+	pub unique_tex:Vec<[f32; 2]>,
+	pub unique_normal:Vec<[f32; 3]>,
+	pub unique_color:Vec<[f32; 4]>,
+	pub unique_vertices:Vec<IndexedVertex>,
+	pub groups: Vec<IndexedGroup>,
+	pub instances:Vec<ModelInstance>,
+}
+pub struct IndexedGroupFixedTexture{
+	pub polys:Vec<IndexedPolygon>,
+}
+pub struct IndexedModelSingleTexture{
+	pub unique_pos:Vec<[f32; 3]>,
+	pub unique_tex:Vec<[f32; 2]>,
+	pub unique_normal:Vec<[f32; 3]>,
+	pub unique_color:Vec<[f32; 4]>,
+	pub unique_vertices:Vec<IndexedVertex>,
+	pub texture:Option<u32>,//RenderPattern? material/texture/shader/flat color
+	pub groups: Vec<IndexedGroupFixedTexture>,
+	pub instances:Vec<ModelGraphicsInstance>,
+}
+pub struct ModelSingleTexture{
+	pub instances: Vec<ModelGraphicsInstance>,
+	pub vertices: Vec<Vertex>,
+	pub entities: Vec<Vec<u16>>,
+	pub texture: Option<u32>,
+}
+#[derive(Clone)]
+pub struct ModelGraphicsInstance{
+	pub transform:glam::Mat4,
+	pub normal_transform:glam::Mat3,
+	pub color:glam::Vec4,
+}
+pub struct ModelInstance{
+	//pub id:u64,//this does not actually help with map fixes resimulating bots, they must always be resimulated
+	pub transform:glam::Affine3A,
+	pub color:glam::Vec4,//transparency is in here
+	pub attributes:CollisionAttributes,
+	pub temp_indexing:Vec<TempIndexedAttributes>,
+}
+impl std::default::Default for ModelInstance{
+	fn default() -> Self {
+		Self{
+			color:glam::Vec4::ONE,
+			transform:Default::default(),
+			attributes:Default::default(),
+			temp_indexing:Default::default(),
+		}
+	}
+}
+pub struct IndexedModelInstances{
+	pub textures:Vec<String>,//RenderPattern
+	pub models:Vec<IndexedModel>,
+	//may make this into an object later.
+	pub modes:Vec<ModeDescription>,
+	pub spawn_point:glam::Vec3,
+}
+//stage description referencing flattened ids is spooky, but the map loading is meant to be deterministic.
+pub struct ModeDescription{
+	pub start:u32,//start=model_id
+	pub spawns:Vec<u32>,//spawns[spawn_id]=model_id
+	pub ordered_checkpoints:Vec<u32>,//ordered_checkpoints[checkpoint_id]=model_id
+	pub unordered_checkpoints:Vec<u32>,//unordered_checkpoints[checkpoint_id]=model_id
+	pub spawn_from_stage_id:std::collections::HashMap::<u32,usize>,
+	pub ordered_checkpoint_from_checkpoint_id:std::collections::HashMap::<u32,usize>,
+}
+impl ModeDescription{
+	pub fn get_spawn_model_id(&self,stage_id:u32)->Option<&u32>{
+		if let Some(&spawn)=self.spawn_from_stage_id.get(&stage_id){
+			self.spawns.get(spawn)
+		}else{
+			None
+		}
+	}
+	pub fn get_ordered_checkpoint_model_id(&self,checkpoint_id:u32)->Option<&u32>{
+		if let Some(&checkpoint)=self.ordered_checkpoint_from_checkpoint_id.get(&checkpoint_id){
+			self.ordered_checkpoints.get(checkpoint)
+		}else{
+			None
+		}
+	}
+}
+pub enum TempIndexedAttributes{
+	Start{
+		mode_id:u32,
+	},
+	Spawn{
+		mode_id:u32,
+		stage_id:u32,
+	},
+	OrderedCheckpoint{
+		mode_id:u32,
+		checkpoint_id:u32,
+	},
+	UnorderedCheckpoint{
+		mode_id:u32,
+	},
+}
+
+//you have this effect while in contact
+#[derive(Clone)]
+pub struct ContactingSurf{}
+#[derive(Clone)]
+pub struct ContactingLadder{
+	pub sticky:bool
+}
+//you have this effect while intersecting
+#[derive(Clone)]
+pub struct IntersectingWater{
+	pub viscosity:i64,
+	pub density:i64,
+	pub current:glam::Vec3,
+}
+#[derive(Clone)]
+pub struct IntersectingAccelerator{
+	pub acceleration:glam::Vec3
+}
+//All models can be given these attributes
+#[derive(Clone)]
+pub struct GameMechanicJumpLimit{
+	pub count:u32,
+}
+#[derive(Clone)]
+pub struct GameMechanicBooster{
+	pub velocity:glam::Vec3,
+}
+#[derive(Clone)]
+pub enum ZoneBehaviour{
+	//Start is indexed
+	//Checkpoints are indexed
+	Finish,
+	Anitcheat,
+}
+#[derive(Clone)]
+pub struct GameMechanicZone{
+	pub mode_id:u32,
+	pub behaviour:ZoneBehaviour,
+}
+// enum TrapCondition{
+// 	FasterThan(i64),
+// 	SlowerThan(i64),
+// 	InRange(i64,i64),
+// 	OutsideRange(i64,i64),
+// }
+#[derive(Clone)]
+pub enum StageElementBehaviour{
+ 	//Spawn,//The behaviour of stepping on a spawn setting the spawnid
+ 	SpawnAt,
+ 	Trigger,
+ 	Teleport,
+ 	Platform,
+ 	//Speedtrap(TrapCondition),//Acts as a trigger with a speed condition
+}
+#[derive(Clone)]
+pub struct GameMechanicStageElement{
+	pub mode_id:u32,
+	pub stage_id:u32,//which spawn to send to
+	pub force:bool,//allow setting to lower spawn id i.e. 7->3
+	pub behaviour:StageElementBehaviour
+}
+#[derive(Clone)]
+pub struct GameMechanicWormhole{//(position,angles)*=origin.transform.inverse()*destination.transform
+	pub model_id:u32,
+}
+#[derive(Default,Clone)]
+pub struct GameMechanicAttributes{
+	pub jump_limit:Option<GameMechanicJumpLimit>,
+	pub booster:Option<GameMechanicBooster>,
+	pub zone:Option<GameMechanicZone>,
+	pub stage_element:Option<GameMechanicStageElement>,
+	pub wormhole:Option<GameMechanicWormhole>,//stage_element and wormhole are in conflict
+}
+#[derive(Default,Clone)]
+pub struct ContactingAttributes{
+	pub elasticity:Option<u32>,//[1/2^32,1] 0=None (elasticity+1)/2^32
+	//friction?
+	pub surf:Option<ContactingSurf>,
+	pub ladder:Option<ContactingLadder>,
+}
+#[derive(Default,Clone)]
+pub struct IntersectingAttributes{
+	pub water:Option<IntersectingWater>,
+	pub accelerator:Option<IntersectingAccelerator>,
+}
+//Spawn(u32) NO! spawns are indexed in the map header instead of marked with attibutes
+pub enum CollisionAttributes{
+	Decoration,//visual only
+	Contact{//track whether you are contacting the object
+		contacting:ContactingAttributes,
+		general:GameMechanicAttributes,
+	},
+	Intersect{//track whether you are intersecting the object
+		intersecting:IntersectingAttributes,
+		general:GameMechanicAttributes,
+	},
+}
+impl std::default::Default for CollisionAttributes{
+	fn default() -> Self {
+		Self::Contact{
+			contacting:ContactingAttributes::default(),
+			general:GameMechanicAttributes::default()
+		}
+	}
+}
+
+pub fn generate_indexed_model_list_from_obj(data:obj::ObjData,color:[f32;4]) -> Vec<IndexedModel>{
+	let mut unique_vertex_index = std::collections::HashMap::<obj::IndexTuple,u32>::new();
+	return data.objects.iter().map(|object|{
+		unique_vertex_index.clear();
+		let mut unique_vertices = Vec::new();
+		let groups = object.groups.iter().map(|group|{
+			IndexedGroup{
+				texture:None,
+				polys:group.polys.iter().map(|poly|{
+					IndexedPolygon{
+						vertices:poly.0.iter().map(|&tup|{
+							if let Some(&i)=unique_vertex_index.get(&tup){
+								i
+							}else{
+								let i=unique_vertices.len() as u32;
+								unique_vertices.push(IndexedVertex{
+									pos: tup.0 as u32,
+									tex: tup.1.unwrap() as u32,
+									normal: tup.2.unwrap() as u32,
+									color: 0,
+								});
+								unique_vertex_index.insert(tup,i);
+								i
+							}
+						}).collect()
+					}
+				}).collect()
+			}
+		}).collect();
+		IndexedModel{
+			unique_pos: data.position.clone(),
+			unique_tex: data.texture.clone(),
+			unique_normal: data.normal.clone(),
+			unique_color: vec![color],
+			unique_vertices,
+			groups,
+			instances:Vec::new(),
+		}
+	}).collect()
+}

src/primitives.rs

@@ -0,0 +1,506 @@
+use crate::model::{IndexedModel, IndexedPolygon, IndexedGroup, IndexedVertex};
+
+#[derive(Debug)]
+pub enum Primitives{
+	Sphere,
+	Cube,
+	Cylinder,
+	Wedge,
+	CornerWedge,
+}
+#[derive(Hash,PartialEq,Eq)]
+pub enum CubeFace{
+	Right,
+	Top,
+	Back,
+	Left,
+	Bottom,
+	Front,
+}
+const CUBE_DEFAULT_TEXTURE_COORDS:[[f32;2];4]=[[0.0,0.0],[1.0,0.0],[1.0,1.0],[0.0,1.0]];
+const CUBE_DEFAULT_VERTICES:[[f32;3];8]=[
+	[-1.,-1., 1.],//0 left bottom back
+	[ 1.,-1., 1.],//1 right bottom back
+	[ 1., 1., 1.],//2 right top back
+	[-1., 1., 1.],//3 left top back
+	[-1., 1.,-1.],//4 left top front
+	[ 1., 1.,-1.],//5 right top front
+	[ 1.,-1.,-1.],//6 right bottom front
+	[-1.,-1.,-1.],//7 left bottom front
+];
+const CUBE_DEFAULT_NORMALS:[[f32;3];6]=[
+	[ 1., 0., 0.],//CubeFace::Right
+	[ 0., 1., 0.],//CubeFace::Top
+	[ 0., 0., 1.],//CubeFace::Back
+	[-1., 0., 0.],//CubeFace::Left
+	[ 0.,-1., 0.],//CubeFace::Bottom
+	[ 0., 0.,-1.],//CubeFace::Front
+];
+const CUBE_DEFAULT_POLYS:[[[u32;3];4];6]=[
+	// right (1, 0, 0)
+	[
+		[6,2,0],//[vertex,tex,norm]
+		[5,1,0],
+		[2,0,0],
+		[1,3,0],
+	],
+	// top (0, 1, 0)
+	[
+		[5,3,1],
+		[4,2,1],
+		[3,1,1],
+		[2,0,1],
+	],
+	// back (0, 0, 1)
+	[
+		[0,3,2],
+		[1,2,2],
+		[2,1,2],
+		[3,0,2],
+	],
+	// left (-1, 0, 0)
+	[
+		[0,2,3],
+		[3,1,3],
+		[4,0,3],
+		[7,3,3],
+	],
+	// bottom (0,-1, 0)
+	[
+		[1,1,4],
+		[0,0,4],
+		[7,3,4],
+		[6,2,4],
+	],
+	// front (0, 0,-1)
+	[
+		[4,1,5],
+		[5,0,5],
+		[6,3,5],
+		[7,2,5],
+	],
+];
+
+#[derive(Hash,PartialEq,Eq)]
+pub enum WedgeFace{
+	Right,
+	TopFront,
+	Back,
+	Left,
+	Bottom,
+}
+const WEDGE_DEFAULT_NORMALS:[[f32;3];5]=[
+	[ 1., 0., 0.],//Wedge::Right
+	[ 0., 1.,-1.],//Wedge::TopFront
+	[ 0., 0., 1.],//Wedge::Back
+	[-1., 0., 0.],//Wedge::Left
+	[ 0.,-1., 0.],//Wedge::Bottom
+];
+/*
+local cornerWedgeVerticies = {
+	Vector3.new(-1/2,-1/2,-1/2),7
+	Vector3.new(-1/2,-1/2, 1/2),0
+	Vector3.new( 1/2,-1/2,-1/2),6
+	Vector3.new( 1/2,-1/2, 1/2),1
+	Vector3.new( 1/2, 1/2,-1/2),5
+}
+*/
+#[derive(Hash,PartialEq,Eq)]
+pub enum CornerWedgeFace{
+	Right,
+	TopBack,
+	TopLeft,
+	Bottom,
+	Front,
+}
+const CORNERWEDGE_DEFAULT_NORMALS:[[f32;3];5]=[
+	[ 1., 0., 0.],//CornerWedge::Right
+	[ 0., 1., 1.],//CornerWedge::BackTop
+	[-1., 1., 0.],//CornerWedge::LeftTop
+	[ 0.,-1., 0.],//CornerWedge::Bottom
+	[ 0., 0.,-1.],//CornerWedge::Front
+];
+//HashMap fits this use case perfectly but feels like using a sledgehammer to drive a nail
+pub fn unit_sphere()->crate::model::IndexedModel{
+	let mut indexed_model=crate::model::generate_indexed_model_list_from_obj(obj::ObjData::load_buf(&include_bytes!("../models/suzanne.obj")[..]).unwrap(),*glam::Vec4::ONE.as_ref()).remove(0);
+	for pos in indexed_model.unique_pos.iter_mut(){
+		pos[0]=pos[0]*0.5;
+		pos[1]=pos[1]*0.5;
+		pos[2]=pos[2]*0.5;
+	}
+	indexed_model
+}
+pub type CubeFaceDescription=std::collections::HashMap::<CubeFace,FaceDescription>;
+pub fn unit_cube()->crate::model::IndexedModel{
+	let mut t=CubeFaceDescription::new();
+	t.insert(CubeFace::Right,FaceDescription::default());
+	t.insert(CubeFace::Top,FaceDescription::default());
+	t.insert(CubeFace::Back,FaceDescription::default());
+	t.insert(CubeFace::Left,FaceDescription::default());
+	t.insert(CubeFace::Bottom,FaceDescription::default());
+	t.insert(CubeFace::Front,FaceDescription::default());
+	generate_partial_unit_cube(t)
+}
+const TEAPOT_TRANSFORM:glam::Mat3=glam::mat3(glam::vec3(0.0,0.1,0.0),glam::vec3(-0.1,0.0,0.0),glam::vec3(0.0,0.0,0.1));
+pub fn unit_cylinder()->crate::model::IndexedModel{
+	let mut indexed_model=crate::model::generate_indexed_model_list_from_obj(obj::ObjData::load_buf(&include_bytes!("../models/teapot.obj")[..]).unwrap(),*glam::Vec4::ONE.as_ref()).remove(0);
+	for pos in indexed_model.unique_pos.iter_mut(){
+		[pos[0],pos[1],pos[2]]=*(TEAPOT_TRANSFORM*glam::Vec3::from_array(*pos)).as_ref();
+	}
+	indexed_model
+}
+pub type WedgeFaceDescription=std::collections::HashMap::<WedgeFace,FaceDescription>;
+pub fn unit_wedge()->crate::model::IndexedModel{
+	let mut t=WedgeFaceDescription::new();
+	t.insert(WedgeFace::Right,FaceDescription::default());
+	t.insert(WedgeFace::TopFront,FaceDescription::default());
+	t.insert(WedgeFace::Back,FaceDescription::default());
+	t.insert(WedgeFace::Left,FaceDescription::default());
+	t.insert(WedgeFace::Bottom,FaceDescription::default());
+	generate_partial_unit_wedge(t)
+}
+pub type CornerWedgeFaceDescription=std::collections::HashMap::<CornerWedgeFace,FaceDescription>;
+pub fn unit_cornerwedge()->crate::model::IndexedModel{
+	let mut t=CornerWedgeFaceDescription::new();
+	t.insert(CornerWedgeFace::Right,FaceDescription::default());
+	t.insert(CornerWedgeFace::TopBack,FaceDescription::default());
+	t.insert(CornerWedgeFace::TopLeft,FaceDescription::default());
+	t.insert(CornerWedgeFace::Bottom,FaceDescription::default());
+	t.insert(CornerWedgeFace::Front,FaceDescription::default());
+	generate_partial_unit_cornerwedge(t)
+}
+
+#[derive(Copy,Clone)]
+pub struct FaceDescription{
+	pub texture:Option<u32>,
+	pub transform:glam::Affine2,
+	pub color:glam::Vec4,
+}
+impl std::default::Default for FaceDescription{
+	fn default()->Self {
+		Self{
+			texture:None,
+			transform:glam::Affine2::IDENTITY,
+			color:glam::vec4(1.0,1.0,1.0,0.0),//zero alpha to hide the default texture
+		}
+	}
+}
+impl FaceDescription{
+	pub fn new(texture:u32,transform:glam::Affine2,color:glam::Vec4)->Self{
+		Self{texture:Some(texture),transform,color}
+	}
+	pub fn from_texture(texture:u32)->Self{
+		Self{
+			texture:Some(texture),
+			transform:glam::Affine2::IDENTITY,
+			color:glam::Vec4::ONE,
+		}
+	}
+}
+//TODO: it's probably better to use a shared vertex buffer between all primitives and use indexed rendering instead of generating a unique vertex buffer for each primitive.
+//implementation: put all roblox primitives into one model.groups <- this won't work but I forget why
+pub fn generate_partial_unit_cube(face_descriptions:CubeFaceDescription)->crate::model::IndexedModel{
+	let mut generated_pos=Vec::<[f32;3]>::new();
+	let mut generated_tex=Vec::new();
+	let mut generated_normal=Vec::new();
+	let mut generated_color=Vec::new();
+	let mut generated_vertices=Vec::new();
+	let mut groups=Vec::new();
+	let mut transforms=Vec::new();
+	//note that on a cube every vertex is guaranteed to be unique, so there's no need to hash them against existing vertices.
+	for (face,face_description) in face_descriptions.into_iter(){
+		//assume that scanning short lists is faster than hashing.
+		let transform_index=if let Some(transform_index)=transforms.iter().position(|&transform|transform==face_description.transform){
+			transform_index
+		}else{
+			//create new transform_index
+			let transform_index=transforms.len();
+			transforms.push(face_description.transform);
+			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
+				generated_tex.push(*face_description.transform.transform_point2(glam::Vec2::from_array(tex)).as_ref());
+			}
+			transform_index
+		} as u32;
+		let color_index=if let Some(color_index)=generated_color.iter().position(|color|color==face_description.color.as_ref()){
+			color_index
+		}else{
+			//create new color_index
+			let color_index=generated_color.len();
+			generated_color.push(*face_description.color.as_ref());
+			color_index
+		} as u32;
+		let face_id=match face{
+			CubeFace::Right => 0,
+			CubeFace::Top => 1,
+			CubeFace::Back => 2,
+			CubeFace::Left => 3,
+			CubeFace::Bottom => 4,
+			CubeFace::Front => 5,
+		};
+		//always push normal
+		let normal_index=generated_normal.len() as u32;
+		generated_normal.push(CUBE_DEFAULT_NORMALS[face_id]);
+		//push vertices as they are needed
+		groups.push(IndexedGroup{
+			texture:face_description.texture,
+			polys:vec![IndexedPolygon{
+				vertices:CUBE_DEFAULT_POLYS[face_id].map(|tup|{
+					let pos=CUBE_DEFAULT_VERTICES[tup[0] as usize];
+					let pos_index=if let Some(pos_index)=generated_pos.iter().position(|&p|p==pos){
+						pos_index
+					}else{
+						//create new pos_index
+						let pos_index=generated_pos.len();
+						generated_pos.push(pos);
+						pos_index
+					} as u32;
+					//always push vertex
+					let vertex=IndexedVertex{
+						pos:pos_index,
+						tex:tup[1]+4*transform_index,
+						normal:normal_index,
+						color:color_index,
+					};
+					let vert_index=generated_vertices.len();
+					generated_vertices.push(vertex);
+					vert_index as u32
+				}).to_vec(),
+			}],
+		});
+	}
+	IndexedModel{
+		unique_pos:generated_pos,
+		unique_tex:generated_tex,
+		unique_normal:generated_normal,
+		unique_color:generated_color,
+		unique_vertices:generated_vertices,
+		groups,
+		instances:Vec::new(),
+	}
+}
+//don't think too hard about the copy paste because this is all going into the map tool eventually...
+pub fn generate_partial_unit_wedge(face_descriptions:WedgeFaceDescription)->crate::model::IndexedModel{
+	let wedge_default_polys=vec![
+		// right (1, 0, 0)
+		vec![
+			[6,2,0],//[vertex,tex,norm]
+			[2,0,0],
+			[1,3,0],
+		],
+		// FrontTop (0, 1, -1)
+		vec![
+			[3,1,1],
+			[2,0,1],
+			[6,3,1],
+			[7,2,1],
+		],
+		// back (0, 0, 1)
+		vec![
+			[0,3,2],
+			[1,2,2],
+			[2,1,2],
+			[3,0,2],
+		],
+		// left (-1, 0, 0)
+		vec![
+			[0,2,3],
+			[3,1,3],
+			[7,3,3],
+		],
+		// bottom (0,-1, 0)
+		vec![
+			[1,1,4],
+			[0,0,4],
+			[7,3,4],
+			[6,2,4],
+		],
+	];
+	let mut generated_pos=Vec::<[f32;3]>::new();
+	let mut generated_tex=Vec::new();
+	let mut generated_normal=Vec::new();
+	let mut generated_color=Vec::new();
+	let mut generated_vertices=Vec::new();
+	let mut groups=Vec::new();
+	let mut transforms=Vec::new();
+	//note that on a cube every vertex is guaranteed to be unique, so there's no need to hash them against existing vertices.
+	for (face,face_description) in face_descriptions.into_iter(){
+		//assume that scanning short lists is faster than hashing.
+		let transform_index=if let Some(transform_index)=transforms.iter().position(|&transform|transform==face_description.transform){
+			transform_index
+		}else{
+			//create new transform_index
+			let transform_index=transforms.len();
+			transforms.push(face_description.transform);
+			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
+				generated_tex.push(*face_description.transform.transform_point2(glam::Vec2::from_array(tex)).as_ref());
+			}
+			transform_index
+		} as u32;
+		let color_index=if let Some(color_index)=generated_color.iter().position(|color|color==face_description.color.as_ref()){
+			color_index
+		}else{
+			//create new color_index
+			let color_index=generated_color.len();
+			generated_color.push(*face_description.color.as_ref());
+			color_index
+		} as u32;
+		let face_id=match face{
+			WedgeFace::Right => 0,
+			WedgeFace::TopFront => 1,
+			WedgeFace::Back => 2,
+			WedgeFace::Left => 3,
+			WedgeFace::Bottom => 4,
+		};
+		//always push normal
+		let normal_index=generated_normal.len() as u32;
+		generated_normal.push(WEDGE_DEFAULT_NORMALS[face_id]);
+		//push vertices as they are needed
+		groups.push(IndexedGroup{
+			texture:face_description.texture,
+			polys:vec![IndexedPolygon{
+				vertices:wedge_default_polys[face_id].iter().map(|tup|{
+					let pos=CUBE_DEFAULT_VERTICES[tup[0] as usize];
+					let pos_index=if let Some(pos_index)=generated_pos.iter().position(|&p|p==pos){
+						pos_index
+					}else{
+						//create new pos_index
+						let pos_index=generated_pos.len();
+						generated_pos.push(pos);
+						pos_index
+					} as u32;
+					//always push vertex
+					let vertex=IndexedVertex{
+						pos:pos_index,
+						tex:tup[1]+4*transform_index,
+						normal:normal_index,
+						color:color_index,
+					};
+					let vert_index=generated_vertices.len();
+					generated_vertices.push(vertex);
+					vert_index as u32
+				}).collect(),
+			}],
+		});
+	}
+	IndexedModel{
+		unique_pos:generated_pos,
+		unique_tex:generated_tex,
+		unique_normal:generated_normal,
+		unique_color:generated_color,
+		unique_vertices:generated_vertices,
+		groups,
+		instances:Vec::new(),
+	}
+}
+
+pub fn generate_partial_unit_cornerwedge(face_descriptions:CornerWedgeFaceDescription)->crate::model::IndexedModel{
+	let cornerwedge_default_polys=vec![
+		// right (1, 0, 0)
+		vec![
+			[6,2,0],//[vertex,tex,norm]
+			[5,1,0],
+			[1,3,0],
+		],
+		// BackTop (0, 1, 1)
+		vec![
+			[5,3,1],
+			[0,1,1],
+			[1,0,1],
+		],
+		// LeftTop (-1, 1, 0)
+		vec![
+			[5,3,2],
+			[7,2,2],
+			[0,1,2],
+		],
+		// bottom (0,-1, 0)
+		vec![
+			[1,1,3],
+			[0,0,3],
+			[7,3,3],
+			[6,2,3],
+		],
+		// front (0, 0,-1)
+		vec![
+			[5,0,4],
+			[6,3,4],
+			[7,2,4],
+		],
+	];
+	let mut generated_pos=Vec::<[f32;3]>::new();
+	let mut generated_tex=Vec::new();
+	let mut generated_normal=Vec::new();
+	let mut generated_color=Vec::new();
+	let mut generated_vertices=Vec::new();
+	let mut groups=Vec::new();
+	let mut transforms=Vec::new();
+	//note that on a cube every vertex is guaranteed to be unique, so there's no need to hash them against existing vertices.
+	for (face,face_description) in face_descriptions.into_iter(){
+		//assume that scanning short lists is faster than hashing.
+		let transform_index=if let Some(transform_index)=transforms.iter().position(|&transform|transform==face_description.transform){
+			transform_index
+		}else{
+			//create new transform_index
+			let transform_index=transforms.len();
+			transforms.push(face_description.transform);
+			for tex in CUBE_DEFAULT_TEXTURE_COORDS{
+				generated_tex.push(*face_description.transform.transform_point2(glam::Vec2::from_array(tex)).as_ref());
+			}
+			transform_index
+		} as u32;
+		let color_index=if let Some(color_index)=generated_color.iter().position(|color|color==face_description.color.as_ref()){
+			color_index
+		}else{
+			//create new color_index
+			let color_index=generated_color.len();
+			generated_color.push(*face_description.color.as_ref());
+			color_index
+		} as u32;
+		let face_id=match face{
+			CornerWedgeFace::Right => 0,
+			CornerWedgeFace::TopBack => 1,
+			CornerWedgeFace::TopLeft => 2,
+			CornerWedgeFace::Bottom => 3,
+			CornerWedgeFace::Front => 4,
+		};
+		//always push normal
+		let normal_index=generated_normal.len() as u32;
+		generated_normal.push(CORNERWEDGE_DEFAULT_NORMALS[face_id]);
+		//push vertices as they are needed
+		groups.push(IndexedGroup{
+			texture:face_description.texture,
+			polys:vec![IndexedPolygon{
+				vertices:cornerwedge_default_polys[face_id].iter().map(|tup|{
+					let pos=CUBE_DEFAULT_VERTICES[tup[0] as usize];
+					let pos_index=if let Some(pos_index)=generated_pos.iter().position(|&p|p==pos){
+						pos_index
+					}else{
+						//create new pos_index
+						let pos_index=generated_pos.len();
+						generated_pos.push(pos);
+						pos_index
+					} as u32;
+					//always push vertex
+					let vertex=IndexedVertex{
+						pos:pos_index,
+						tex:tup[1]+4*transform_index,
+						normal:normal_index,
+						color:color_index,
+					};
+					let vert_index=generated_vertices.len();
+					generated_vertices.push(vertex);
+					vert_index as u32
+				}).collect(),
+			}],
+		});
+	}
+	IndexedModel{
+		unique_pos:generated_pos,
+		unique_tex:generated_tex,
+		unique_normal:generated_normal,
+		unique_color:generated_color,
+		unique_vertices:generated_vertices,
+		groups,
+		instances:Vec::new(),
+	}
+}

src/settings.rs

@@ -0,0 +1,123 @@
+struct Ratio{
+	ratio:f64,
+}
+enum DerivedFov{
+	FromScreenAspect,
+	FromAspect(Ratio),
+}
+enum Fov{
+	Exactly{x:f64,y:f64},
+	DeriveX{x:DerivedFov,y:f64},
+	DeriveY{x:f64,y:DerivedFov},
+}
+impl Default for Fov{
+	fn default() -> Self {
+		Fov::DeriveX{x:DerivedFov::FromScreenAspect,y:1.0}
+	}
+}
+
+enum Sensitivity{
+	Exactly{x:f64,y:f64},
+	DeriveX{x:Ratio,y:f64},
+	DeriveY{x:f64,y:Ratio},
+}
+impl Default for Sensitivity{
+	fn default() -> Self {
+		Sensitivity::DeriveY{x:0.001,y:Ratio{ratio:1.0}}
+	}
+}
+
+#[derive(Default)]
+pub struct UserSettings{
+	fov:Fov,
+	sensitivity:Sensitivity,
+}
+impl UserSettings{
+	pub fn calculate_fov(&self,zoom:f64,screen_size:&glam::UVec2)->glam::DVec2{
+		zoom*match &self.fov{
+			&Fov::Exactly{x,y}=>glam::dvec2(x,y),
+			Fov::DeriveX{x,y}=>match x{
+				DerivedFov::FromScreenAspect=>glam::dvec2(y*(screen_size.x as f64/screen_size.y as f64),*y),
+				DerivedFov::FromAspect(ratio)=>glam::dvec2(y*ratio.ratio,*y),
+			},
+			Fov::DeriveY{x,y}=>match y{
+				DerivedFov::FromScreenAspect=>glam::dvec2(*x,x*(screen_size.y as f64/screen_size.x as f64)),
+				DerivedFov::FromAspect(ratio)=>glam::dvec2(*x,x*ratio.ratio),
+			},
+		}
+	}
+	pub fn calculate_sensitivity(&self)->glam::DVec2{
+		match &self.sensitivity{
+			&Sensitivity::Exactly{x,y}=>glam::dvec2(x,y),
+			Sensitivity::DeriveX{x,y}=>glam::dvec2(y*x.ratio,*y),
+			Sensitivity::DeriveY{x,y}=>glam::dvec2(*x,x*y.ratio),
+		}
+	}
+}
+
+/*
+//sensitivity is raw input dots (i.e. dpi = dots per inch) to radians conversion factor
+sensitivity_x=0.001
+sensitivity_y_from_x_ratio=1
+Sensitivity::DeriveY{x:0.0.001,y:DerivedSensitivity{ratio:1.0}}
+*/
+
+pub fn read_user_settings()->UserSettings{
+	let mut cfg=configparser::ini::Ini::new();
+	if let Ok(_)=cfg.load("settings.conf"){
+		let (cfg_fov_x,cfg_fov_y)=(cfg.getfloat("camera","fov_x"),cfg.getfloat("camera","fov_y"));
+		let fov=match(cfg_fov_x,cfg_fov_y){
+			(Ok(Some(fov_x)),Ok(Some(fov_y)))=>Fov::Exactly {
+				x:fov_x,
+				y:fov_y
+			},
+			(Ok(Some(fov_x)),Ok(None))=>Fov::DeriveY{
+				x:fov_x,
+				y:if let Ok(Some(fov_y_from_x_ratio))=cfg.getfloat("camera","fov_y_from_x_ratio"){
+					DerivedFov::FromAspect(Ratio{ratio:fov_y_from_x_ratio})
+				}else{
+					DerivedFov::FromScreenAspect
+				}
+			},
+			(Ok(None),Ok(Some(fov_y)))=>Fov::DeriveX{
+				x:if let Ok(Some(fov_x_from_y_ratio))=cfg.getfloat("camera","fov_x_from_y_ratio"){
+					DerivedFov::FromAspect(Ratio{ratio:fov_x_from_y_ratio})
+				}else{
+					DerivedFov::FromScreenAspect
+				},
+				y:fov_y,
+			},
+			_=>{
+				Fov::default()
+			},
+		};
+		let (cfg_sensitivity_x,cfg_sensitivity_y)=(cfg.getfloat("camera","sensitivity_x"),cfg.getfloat("camera","sensitivity_y"));
+		let sensitivity=match(cfg_sensitivity_x,cfg_sensitivity_y){
+			(Ok(Some(sensitivity_x)),Ok(Some(sensitivity_y)))=>Sensitivity::Exactly {
+				x:sensitivity_x,
+				y:sensitivity_y
+			},
+			(Ok(Some(sensitivity_x)),Ok(None))=>Sensitivity::DeriveY{
+				x:sensitivity_x,
+				y:Ratio{
+					ratio:if let Ok(Some(sensitivity_y_from_x_ratio))=cfg.getfloat("camera","sensitivity_y_from_x_ratio"){sensitivity_y_from_x_ratio}else{1.0}
+				}
+			},
+			(Ok(None),Ok(Some(sensitivity_y)))=>Sensitivity::DeriveX{
+				x:Ratio{
+					ratio:if let Ok(Some(sensitivity_x_from_y_ratio))=cfg.getfloat("camera","sensitivity_x_from_y_ratio"){sensitivity_x_from_y_ratio}else{1.0}
+				},
+				y:sensitivity_y,
+			},
+			_=>{
+				Sensitivity::default()
+			},
+		};
+		UserSettings{
+			fov,
+			sensitivity,
+		}
+	}else{
+		UserSettings::default()
+	}
+}

src/shader.wgsl

@@ -5,8 +5,8 @@ struct Camera {
 	proj_inv: mat4x4<f32>,
 	// from world to camera
 	view: mat4x4<f32>,
-	// camera position
+	// from camera to world
-	cam_pos: vec4<f32>,
+	view_inv: mat4x4<f32>,
 };
 
 //group 0 is the camera
@@ -31,8 +31,7 @@ fn vs_sky(@builtin(vertex_index) vertex_index: u32) -> SkyOutput {
 		1.0
 	);
 
-	// transposition = inversion for this orthonormal matrix
+	let inv_model_view = mat3x3<f32>(camera.view_inv[0].xyz, camera.view_inv[1].xyz, camera.view_inv[2].xyz);
-	let inv_model_view = transpose(mat3x3<f32>(camera.view[0].xyz, camera.view[1].xyz, camera.view[2].xyz));
 	let unprojected = camera.proj_inv * pos;
 
 	var result: SkyOutput;
@@ -41,19 +40,22 @@ fn vs_sky(@builtin(vertex_index) vertex_index: u32) -> SkyOutput {
 	return result;
 }
 
-const MAX_ENTITY_INSTANCES=1024;
+struct ModelInstance{
-//group 1 is the model
+	transform:mat4x4<f32>,
-@group(1)
+	normal_transform:mat3x3<f32>,
-@binding(0)
+	color:vec4<f32>,
-var<uniform> entity_transforms: array<mat4x4<f32>,MAX_ENTITY_INSTANCES>;
+}
-//var<uniform> entity_texture_transforms: array<mat3x3<f32>,MAX_ENTITY_INSTANCES>;
 //my fancy idea is to create a megatexture for each model that includes all the textures each intance will need
 //the texture transform then maps the texture coordinates to the location of the specific texture
-//how to do no texture?
+//group 1 is the model
-@group(1)
+const MAX_MODEL_INSTANCES=4096;
+@group(2)
+@binding(0)
+var<uniform> model_instances: array<ModelInstance, MAX_MODEL_INSTANCES>;
+@group(2)
 @binding(1)
 var model_texture: texture_2d<f32>;
-@group(1)
+@group(2)
 @binding(2)
 var model_sampler: sampler;
 
@@ -62,6 +64,8 @@ struct EntityOutputTexture {
 	@location(1) texture: vec2<f32>,
 	@location(2) normal: vec3<f32>,
 	@location(3) view: vec3<f32>,
+	@location(4) color: vec4<f32>,
+	@location(5) @interpolate(flat) model_color: vec4<f32>,
 };
 @vertex
 fn vs_entity_texture(
@@ -69,27 +73,30 @@ fn vs_entity_texture(
 	@location(0) pos: vec3<f32>,
 	@location(1) texture: vec2<f32>,
 	@location(2) normal: vec3<f32>,
+	@location(3) color: vec4<f32>,
 ) -> EntityOutputTexture {
-	var position: vec4<f32> = entity_transforms[instance] * vec4<f32>(pos, 1.0);
+	var position: vec4<f32> = model_instances[instance].transform * vec4<f32>(pos, 1.0);
 	var result: EntityOutputTexture;
-	result.normal = (entity_transforms[instance] * vec4<f32>(normal, 0.0)).xyz;
+	result.normal = model_instances[instance].normal_transform * normal;
-	result.texture=texture;//(entity_texture_transforms[instance] * vec3<f32>(texture, 1.0)).xy;
+	result.texture = texture;
-	result.view = position.xyz - camera.cam_pos.xyz;
+	result.color = color;
+	result.model_color = model_instances[instance].color;
+	result.view = position.xyz - camera.view_inv[3].xyz;//col(3)
 	result.position = camera.proj * camera.view * position;
 	return result;
 }
 
 //group 2 is the skybox texture
-@group(2)
+@group(1)
 @binding(0)
 var cube_texture: texture_cube<f32>;
-@group(2)
+@group(1)
 @binding(1)
 var cube_sampler: sampler;
 
 @fragment
 fn fs_sky(vertex: SkyOutput) -> @location(0) vec4<f32> {
-	return textureSample(cube_texture, model_sampler, vertex.sampledir);
+	return textureSample(cube_texture, cube_sampler, vertex.sampledir);
 }
 
 @fragment
@@ -99,7 +106,7 @@ fn fs_entity_texture(vertex: EntityOutputTexture) -> @location(0) vec4<f32> {
 	let d = dot(normal, incident);
 	let reflected = incident - 2.0 * d * normal;
 
-	let fragment_color = textureSample(model_texture, model_sampler, vertex.texture).rgb;
+	let fragment_color = textureSample(model_texture, model_sampler, vertex.texture)*vertex.color;
 	let reflected_color = textureSample(cube_texture, cube_sampler, reflected).rgb;
-	return vec4<f32>(mix(vec3<f32>(0.1) + 0.5 * reflected_color,fragment_color,1.0-pow(1.0-abs(d),2.0)), 1.0);
+	return mix(vec4<f32>(vec3<f32>(0.05) + 0.2 * reflected_color,1.0),mix(vertex.model_color,vec4<f32>(fragment_color.rgb,1.0),fragment_color.a),0.5+0.5*abs(d));
 }

src/timers.rs

@@ -0,0 +1,237 @@
+type TIME=crate::physics::TIME;
+
+#[derive(Clone)]
+pub struct Timescale{
+	num:i64,
+	den:std::num::NonZeroU64,
+}
+
+#[derive(Clone)]
+pub struct Paused{}
+#[derive(Clone)]
+pub struct Unpaused{}
+#[derive(Clone)]
+pub struct PausedScaled{scale:Timescale}
+#[derive(Clone)]
+pub struct UnpausedScaled{scale:Timescale}
+
+pub trait TimerState{}
+impl TimerState for Paused{}
+impl TimerState for Unpaused{}
+impl TimerState for PausedScaled{}
+impl TimerState for UnpausedScaled{}
+
+pub trait IsPaused{}
+impl IsPaused for Paused{}
+impl IsPaused for PausedScaled{}
+
+pub trait IsUnpaused{}
+impl IsUnpaused for Unpaused{}
+impl IsUnpaused for UnpausedScaled{}
+
+pub trait IsScaled{}
+impl IsScaled for PausedScaled{}
+impl IsScaled for UnpausedScaled{}
+
+pub trait IsUnscaled{}
+impl IsUnscaled for Paused{}
+impl IsUnscaled for Unpaused{}
+
+//scaled timer wrapper
+enum Scaled{
+	Paused(Timer<PausedScaled>),
+	Unpaused(Timer<UnpausedScaled>),
+}
+pub struct ScaledTimer{
+	timer:Scaled,
+}
+impl ScaledTimer{
+	pub fn unpaused()->Self{
+		Self{
+			timer:Scaled::Unpaused(unpaused_scaled(Timescale{num:1,den:std::num::NonZeroU64::new(1).unwrap()}))
+		}
+	}
+	pub fn time(&self,time:TIME)->TIME{
+		match &self.timer{
+			Scaled::Paused(timer)=>timer.time(),
+			Scaled::Unpaused(timer)=>timer.time(time),
+		}
+	}
+	pub fn pause(&mut self,time:TIME){
+		match &self.timer{
+			Scaled::Paused(_)=>(),
+			Scaled::Unpaused(timer)=>self.timer=Scaled::Paused(timer.clone().pause(time)),
+		};
+	}
+	pub fn unpause(&mut self,time:TIME){
+		match &self.timer{
+			Scaled::Paused(timer)=>self.timer=Scaled::Unpaused(timer.clone().unpause(time)),
+			Scaled::Unpaused(_)=>(),
+		};
+	}
+}
+
+//unscaled timer wrapper
+enum Unscaled{
+	Paused(Timer<Paused>),
+	Unpaused(Timer<Unpaused>),
+}
+pub struct UnscaledTimer{
+	timer:Unscaled,
+}
+
+impl UnscaledTimer{
+	pub fn unpaused()->Self{
+		Self{
+			timer:Unscaled::Unpaused(unpaused())
+		}
+	}
+	pub fn time(&self,time:TIME)->TIME{
+		match &self.timer{
+			Unscaled::Paused(timer)=>timer.time(),
+			Unscaled::Unpaused(timer)=>timer.time(time),
+		}
+	}
+	pub fn pause(&mut self,time:TIME){
+		match &self.timer{
+			Unscaled::Paused(_)=>(),
+			Unscaled::Unpaused(timer)=>self.timer=Unscaled::Paused(timer.clone().pause(time)),
+		};
+	}
+	pub fn unpause(&mut self,time:TIME){
+		match &self.timer{
+			Unscaled::Paused(timer)=>self.timer=Unscaled::Unpaused(timer.clone().unpause(time)),
+			Unscaled::Unpaused(_)=>(),
+		};
+	}
+}
+
+#[derive(Clone)]
+pub struct Timer<State:TimerState>{
+	offset:crate::physics::TIME,
+	state:State,
+}
+
+fn get_offset(time:TIME,write_time:TIME)->TIME{
+	write_time-time
+}
+fn get_offset_scaled(time:TIME,write_time:TIME,scale:&Timescale)->TIME{
+	write_time-time*scale.num/scale.den.get() as i64
+}
+
+fn paused()->Timer<Paused>{
+	Timer{
+		offset:0,
+		state:Paused{},
+	}
+}
+fn unpaused()->Timer<Unpaused>{
+	Timer{
+		offset:0,
+		state:Unpaused{},
+	}
+}
+fn paused_scaled(scale:Timescale)->Timer<PausedScaled>{
+	Timer{
+		offset:0,
+		state:PausedScaled{scale},
+	}
+}
+fn unpaused_scaled(scale:Timescale)->Timer<UnpausedScaled>{
+	Timer{
+		offset:0,
+		state:UnpausedScaled{scale},
+	}
+}
+impl Timer<Paused>{
+	pub fn time(&self)->TIME{
+		self.offset
+	}
+	pub fn unpause(self,time:TIME)->Timer<Unpaused>{
+		Timer{
+			offset:get_offset(time,self.time()),
+			state:Unpaused{},
+		}
+	}
+	pub fn set_time(&mut self,time:TIME,write_time:TIME){
+		self.offset=get_offset(time,write_time);
+	}
+	pub fn set_scale(self,time:TIME,scale:Timescale)->Timer<PausedScaled>{
+		Timer{
+			offset:get_offset_scaled(time,self.time(),&scale),
+			state:PausedScaled{scale},
+		}
+	}
+}
+impl Timer<Unpaused>{
+	pub fn time(&self,time:TIME)->TIME{
+		self.offset+time
+	}
+	pub fn pause(self,time:TIME)->Timer<Paused>{
+		Timer{
+			offset:self.time(time),
+			state:Paused{},
+		}
+	}
+	pub fn set_time(&mut self,time:TIME,write_time:TIME){
+		self.offset=get_offset(time,write_time);
+	}
+	pub fn set_scale(self,time:TIME,scale:Timescale)->Timer<UnpausedScaled>{
+		Timer{
+			offset:get_offset_scaled(time,self.time(time),&scale),
+			state:UnpausedScaled{scale},
+		}
+	}
+}
+impl Timer<PausedScaled>{
+	pub fn time(&self)->TIME{
+		self.offset
+	}
+	pub fn unpause(self,time:TIME)->Timer<UnpausedScaled>{
+		Timer{
+			offset:get_offset_scaled(time,self.time(),&self.state.scale),
+			state:UnpausedScaled{scale:self.state.scale},
+		}
+	}
+	pub fn set_time(&mut self,time:TIME,write_time:TIME){
+		self.offset=get_offset_scaled(time,write_time,&self.state.scale);
+	}
+	pub fn set_scale(self,time:TIME,scale:Timescale)->Timer<PausedScaled>{
+		Timer{
+			offset:get_offset_scaled(time,self.time(),&scale),
+			state:PausedScaled{scale},
+		}
+	}
+}
+impl Timer<UnpausedScaled>{
+	pub fn time(&self,time:TIME)->TIME{
+		self.offset+time*self.state.scale.num/self.state.scale.den.get() as i64
+	}
+	pub fn pause(self,time:TIME)->Timer<PausedScaled>{
+		Timer{
+			offset:self.time(time),
+			state:PausedScaled{scale:self.state.scale},
+		}
+	}
+	pub fn set_time(&mut self,time:TIME,write_time:TIME){
+		self.offset=get_offset_scaled(time,write_time,&self.state.scale);
+	}
+	pub fn set_scale(self,time:TIME,scale:Timescale)->Timer<UnpausedScaled>{
+		Timer{
+			offset:get_offset_scaled(time,self.time(time),&scale),
+			//self.offset+time*self.state.scale.num/self.state.scale.den.get() as i64-time*scale.num/scale.den.get() as i64
+			state:UnpausedScaled{scale},
+		}
+	}
+}
+
+#[test]
+fn test_timer_unscaled(){
+	const ONE_SECOND:TIME=1_000_000_000;
+	let run_prepare=paused();
+
+	let run_start=run_prepare.unpause(ONE_SECOND);
+	let run_finish=run_start.pause(11*ONE_SECOND);
+
+	assert_eq!(run_finish.time(),10*ONE_SECOND);
+}

src/worker.rs

@@ -0,0 +1,107 @@
+use std::thread;
+use std::sync::{mpsc,Arc};
+use parking_lot::Mutex;
+
+//The goal here is to have a worker thread that parks itself when it runs out of work.
+//The worker thread publishes the result of its work back to the worker object for every item in the work queue.
+//The physics (target use case) knows when it has not changed the body, so not updating the value is also an option.
+
+pub struct Worker<Task:Send,Value:Clone> {
+	sender: mpsc::Sender<Task>,
+	value:Arc<Mutex<Value>>,
+}
+
+impl<Task:Send+'static,Value:Clone+Send+'static> Worker<Task,Value> {
+	pub fn new<F:FnMut(Task)->Value+Send+'static>(value:Value,mut f:F) -> Self {
+		let (sender, receiver) = mpsc::channel::<Task>();
+		let ret=Self {
+			sender,
+			value:Arc::new(Mutex::new(value)),
+		};
+		let value=ret.value.clone();
+		thread::spawn(move || {
+			loop {
+				match receiver.recv() {
+					Ok(task) => {
+						let v=f(task);//make sure function is evaluated before lock is acquired
+						*value.lock()=v;
+					}
+					Err(_) => {
+						println!("Worker stopping.",);
+						break;
+					}
+				}
+			}
+		});
+		ret
+	}
+
+	pub fn send(&self,task:Task)->Result<(), mpsc::SendError<Task>>{
+		self.sender.send(task)
+	}
+
+	pub fn grab_clone(&self)->Value{
+		self.value.lock().clone()
+	}
+}
+
+pub struct CompatWorker<Task,Value:Clone,F>{
+	data:std::marker::PhantomData<Task>,
+	f:F,
+	value:Value,
+}
+
+impl<Task,Value:Clone,F:FnMut(Task)->Value> CompatWorker<Task,Value,F> {
+	pub fn new(value:Value,f:F) -> Self {
+		Self {
+			f,
+			value,
+			data:std::marker::PhantomData,
+		}
+	}
+
+	pub fn send(&mut self,task:Task)->Result<(),()>{
+		self.value=(self.f)(task);
+		Ok(())
+	}
+
+	pub fn grab_clone(&self)->Value{
+		self.value.clone()
+	}
+}
+
+#[test]//How to run this test with printing: cargo test --release -- --nocapture
+fn test_worker() {
+	println!("hiiiii");
+	// Create the worker thread
+	let worker = Worker::new(crate::physics::Body::with_pva(glam::Vec3::ZERO,glam::Vec3::ZERO,glam::Vec3::ZERO),
+		|_|crate::physics::Body::with_pva(glam::Vec3::ONE,glam::Vec3::ONE,glam::Vec3::ONE)
+	);
+
+	// Send tasks to the worker
+	for i in 0..5 {
+		let task = crate::instruction::TimedInstruction{
+			time:0,
+			instruction:crate::physics::PhysicsInstruction::StrafeTick,
+		};
+		worker.send(task).unwrap();
+	}
+
+	// Optional: Signal the worker to stop (in a real-world scenario)
+	// sender.send("STOP".to_string()).unwrap();
+
+	// Sleep to allow the worker thread to finish processing
+	thread::sleep(std::time::Duration::from_secs(2));
+
+	// Send a new task
+	let task = crate::instruction::TimedInstruction{
+		time:0,
+		instruction:crate::physics::PhysicsInstruction::StrafeTick,
+	};
+	worker.send(task).unwrap();
+
+	println!("value={:?}",worker.grab_clone());
+
+	// wait long enough to see print from final task
+	thread::sleep(std::time::Duration::from_secs(1));
+}

src/zeroes.rs

@@ -1,4 +1,5 @@
 //find roots of polynomials
+#[inline]
 pub fn zeroes2(a0:f32,a1:f32,a2:f32) -> Vec<f32>{
 	if a2==0f32{
 		return zeroes1(a0, a1);