forked from StrafesNET/strafe-client
511 lines
15 KiB
Rust
511 lines
15 KiB
Rust
use crate::model::{Color4,TextureCoordinate,IndexedModel,IndexedPolygon,IndexedGroup,IndexedVertex};
|
|
use crate::integer::Planar64Vec3;
|
|
|
|
#[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:[TextureCoordinate;4]=[
|
|
TextureCoordinate::new(0.0,0.0),
|
|
TextureCoordinate::new(1.0,0.0),
|
|
TextureCoordinate::new(1.0,1.0),
|
|
TextureCoordinate::new(0.0,1.0),
|
|
];
|
|
const CUBE_DEFAULT_VERTICES:[Planar64Vec3;8]=[
|
|
Planar64Vec3::int(-1,-1, 1),//0 left bottom back
|
|
Planar64Vec3::int( 1,-1, 1),//1 right bottom back
|
|
Planar64Vec3::int( 1, 1, 1),//2 right top back
|
|
Planar64Vec3::int(-1, 1, 1),//3 left top back
|
|
Planar64Vec3::int(-1, 1,-1),//4 left top front
|
|
Planar64Vec3::int( 1, 1,-1),//5 right top front
|
|
Planar64Vec3::int( 1,-1,-1),//6 right bottom front
|
|
Planar64Vec3::int(-1,-1,-1),//7 left bottom front
|
|
];
|
|
const CUBE_DEFAULT_NORMALS:[Planar64Vec3;6]=[
|
|
Planar64Vec3::int( 1, 0, 0),//CubeFace::Right
|
|
Planar64Vec3::int( 0, 1, 0),//CubeFace::Top
|
|
Planar64Vec3::int( 0, 0, 1),//CubeFace::Back
|
|
Planar64Vec3::int(-1, 0, 0),//CubeFace::Left
|
|
Planar64Vec3::int( 0,-1, 0),//CubeFace::Bottom
|
|
Planar64Vec3::int( 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:[Planar64Vec3;5]=[
|
|
Planar64Vec3::int( 1, 0, 0),//Wedge::Right
|
|
Planar64Vec3::int( 0, 1,-1),//Wedge::TopFront
|
|
Planar64Vec3::int( 0, 0, 1),//Wedge::Back
|
|
Planar64Vec3::int(-1, 0, 0),//Wedge::Left
|
|
Planar64Vec3::int( 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:[Planar64Vec3;5]=[
|
|
Planar64Vec3::int( 1, 0, 0),//CornerWedge::Right
|
|
Planar64Vec3::int( 0, 1, 1),//CornerWedge::BackTop
|
|
Planar64Vec3::int(-1, 1, 0),//CornerWedge::LeftTop
|
|
Planar64Vec3::int( 0,-1, 0),//CornerWedge::Bottom
|
|
Planar64Vec3::int( 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(),Color4::ONE).remove(0);
|
|
for pos in indexed_model.unique_pos.iter_mut(){
|
|
*pos=*pos/2;
|
|
}
|
|
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:crate::integer::Planar64Mat3=crate::integer::Planar64Mat3::int_from_cols_array([0,1,0, -1,0,0, 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(),Color4::ONE).remove(0);
|
|
for pos in indexed_model.unique_pos.iter_mut(){
|
|
*pos=TEAPOT_TRANSFORM*(*pos)/10;
|
|
}
|
|
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(Clone)]
|
|
pub struct FaceDescription{
|
|
pub texture:Option<u32>,
|
|
pub transform:glam::Affine2,
|
|
pub color:Color4,
|
|
}
|
|
impl std::default::Default for FaceDescription{
|
|
fn default()->Self {
|
|
Self{
|
|
texture:None,
|
|
transform:glam::Affine2::IDENTITY,
|
|
color:Color4::new(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:Color4)->Self{
|
|
Self{texture:Some(texture),transform,color}
|
|
}
|
|
pub fn from_texture(texture:u32)->Self{
|
|
Self{
|
|
texture:Some(texture),
|
|
transform:glam::Affine2::IDENTITY,
|
|
color:Color4::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::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(tex));
|
|
}
|
|
transform_index
|
|
} as u32;
|
|
let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){
|
|
color_index
|
|
}else{
|
|
//create new color_index
|
|
let color_index=generated_color.len();
|
|
generated_color.push(face_description.color);
|
|
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::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(tex));
|
|
}
|
|
transform_index
|
|
} as u32;
|
|
let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){
|
|
color_index
|
|
}else{
|
|
//create new color_index
|
|
let color_index=generated_color.len();
|
|
generated_color.push(face_description.color);
|
|
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::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(tex));
|
|
}
|
|
transform_index
|
|
} as u32;
|
|
let color_index=if let Some(color_index)=generated_color.iter().position(|&color|color==face_description.color){
|
|
color_index
|
|
}else{
|
|
//create new color_index
|
|
let color_index=generated_color.len();
|
|
generated_color.push(face_description.color);
|
|
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(),
|
|
}
|
|
}
|