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constants

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This commit is contained in:
Quaternions 2023-10-13 19:08:53 -07:00
parent d33b830338
commit 5f1d732b59
1 changed files with 6 additions and 7 deletions
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13
src/integer.rs
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@ -319,21 +319,20 @@ impl Angle32{
#[inline]
pub fn cos(&self)->Unit32{
//TODO: fix this rounding towards 0
Unit32(unsafe{((self.0 as f64*(std::f64::consts::PI/((1<<31) as f64))).cos()*((1<<30) as f64)).to_int_unchecked()})
Unit32(unsafe{((self.0 as f64*ANGLE32_TO_FLOAT64_RADIANS).cos()*UNIT32_ONE_FLOAT64).to_int_unchecked()})
}
#[inline]
pub fn sin(&self)->Unit32{
//TODO: fix this rounding towards 0
Unit32(unsafe{((self.0 as f64*(std::f64::consts::PI/((1<<31) as f64))).sin()*((1<<30) as f64)).to_int_unchecked()})
Unit32(unsafe{((self.0 as f64*ANGLE32_TO_FLOAT64_RADIANS).sin()*UNIT32_ONE_FLOAT64).to_int_unchecked()})
}
*/
}
const ANGLE32_FLOAT64_PI:f64=(1i64<<31) as f64;
const ANGLE32_TO_FLOAT64_RADIANS:f64=std::f64::consts::PI/((1i64<<31) as f64);
impl Into<f32> for Angle32{
#[inline]
fn into(self)->f32{
//TODO: make this good
(self.0 as f64/-(i32::MIN as f64)*std::f64::consts::PI) as f32
(self.0 as f64*ANGLE32_TO_FLOAT64_RADIANS) as f32
}
}
impl std::ops::Neg for Angle32{
@ -381,7 +380,7 @@ impl Unit32{
Planar64(4*(self.0 as i64))
}
}
const UNIT32_ONE_FLOAT64=((1<<30) as f64);
///[-1.0,1.0] = [-2^30,2^30]
pub struct Unit32Vec3(glam::IVec3);
impl TryFrom<[f32;3]> for Unit32Vec3{
@ -777,7 +776,7 @@ impl Planar64Mat3{
}
#[inline]
pub fn from_rotation_y(angle:Angle32)->Self{
let theta=angle.0 as f64*(std::f64::consts::PI/ANGLE32_FLOAT64_PI);
let theta=angle.0 as f64*ANGLE32_TO_FLOAT64_RADIANS;
let (s,c)=theta.sin_cos();
let (c,s)=(c*PLANAR64_FLOAT64_ONE,s*PLANAR64_FLOAT64_ONE);
//TODO: fix this rounding towards 0