From 9003f88a9d9773e6636e3321c7ffd9cdcf86d40b Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Tue, 31 Dec 2024 01:44:28 -0800
Subject: [PATCH] trey floating point format is not standard

---
 src/v1.rs | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/src/v1.rs b/src/v1.rs
index 72b4257..2aea4f6 100644
--- a/src/v1.rs
+++ b/src/v1.rs
@@ -1,5 +1,55 @@
 use binrw::{binrw,BinReaderExt,io::TakeSeekExt};
 
+// whatever this is
+fn trey_float(f:f32)->f32{
+	let bits=f.to_bits();
+	let s=bits&1!=0;
+	let e=((bits>>1)&((1<<8)-1)) as i32;
+	let m=(bits>>(1+8))&((1<<23)-1);
+	if e==255{
+		if m==0{
+			if s{
+				f32::NEG_INFINITY
+			}else{
+				f32::INFINITY
+			}
+		}else if m==1{
+			f32::NAN
+		}else{
+			// this is supposed to be QNAN but idk how to say it in rust
+			f32::NAN
+		}
+	}else if e==0{
+		if s{-(m as f32)*2.0f32.powi(-149)}else{(m as f32)*2.0f32.powi(-149)}
+	}else{
+		if s{-(m as f32/2.0f32.powi(23)+1.0)*2.0f32.powi(e-127)}else{(m as f32/2.0f32.powi(23)+1.0)*2.0f32.powi(e-127)}
+	}
+}
+fn trey_double(f:f64)->f64{
+	let bits=f.to_bits();
+	let s=bits&1!=0;
+	let e=((bits>>1)&((1<<11)-1)) as i32;
+	let m=(bits>>(1+11))&((1<<52)-1);
+	if e==2047{
+		if m==0{
+			if s{
+				f64::NEG_INFINITY
+			}else{
+				f64::INFINITY
+			}
+		}else if m==1{
+			f64::NAN
+		}else{
+			// this is supposed to be QNAN but idk how to say it in rust
+			f64::NAN
+		}
+	}else if e==0{
+		if s{-(m as f64)*2.0f64.powi(-1074)}else{(m as f64)*2.0f64.powi(-1074)}
+	}else{
+		if s{-(m as f64/2.0f64.powi(52)+1.0)*2.0f64.powi(e-1023)}else{(m as f64/2.0f64.powi(52)+1.0)*2.0f64.powi(e-1023)}
+	}
+}
+
 #[binrw]
 #[brw(little)]
 #[derive(Clone,Copy,Debug)]
@@ -20,14 +70,19 @@ impl Into<bool> for Bool{
 #[binrw]
 #[brw(little)]
 pub struct Vector2{
+	#[br(map=trey_float)]
 	pub x:f32,
+	#[br(map=trey_float)]
 	pub y:f32,
 }
 #[binrw]
 #[brw(little)]
 pub struct Vector3{
+	#[br(map=trey_float)]
 	pub x:f32,
+	#[br(map=trey_float)]
 	pub y:f32,
+	#[br(map=trey_float)]
 	pub z:f32,
 }
 
@@ -41,6 +96,7 @@ pub struct InputEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedInputEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:InputEvent,
 }
@@ -58,6 +114,7 @@ pub struct OutputEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedOutputEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:OutputEvent,
 }
@@ -72,6 +129,7 @@ pub struct SoundEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedSoundEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:SoundEvent,
 }
@@ -92,6 +150,7 @@ pub struct WorldEventButton{
 #[binrw]
 #[brw(little)]
 pub struct WorldEventSetTime{
+	#[br(map=trey_double)]
 	pub time:f64,
 	#[brw(magic=b"data")]
 	__:(),
@@ -118,6 +177,7 @@ pub enum WorldEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedWorldEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:WorldEvent,
 }
@@ -131,6 +191,7 @@ pub struct GravityEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedGravityEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:GravityEvent,
 }
@@ -164,6 +225,7 @@ pub struct RunEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedRunEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:RunEvent,
 }
@@ -178,6 +240,7 @@ pub struct CameraEvent{
 #[binrw]
 #[brw(little)]
 pub struct TimedCameraEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:CameraEvent,
 }
@@ -187,11 +250,13 @@ pub struct TimedCameraEvent{
 #[brw(little)]
 pub struct SettingEvent{
 	pub setting_id:u32,
+	#[br(map=trey_double)]
 	pub value:f64,
 }
 #[binrw]
 #[brw(little)]
 pub struct TimedSettingEvent{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub event:SettingEvent,
 }
@@ -291,6 +356,7 @@ pub struct BlockId(#[br(map=|i:u32|i-1)]u32);
 #[brw(little)]
 #[derive(Debug,Clone,Copy)]
 pub struct TimedBlockId{
+	#[br(map=trey_double)]
 	pub time:f64,
 	pub block_id:BlockId,
 }