2012-09-24 02:54:24 +00:00
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use std::cmp::FuzzyEq;
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2012-09-29 10:25:49 +00:00
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use cmp::Eq;
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2012-09-29 10:37:46 +00:00
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use ops::{Neg, Index};
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2012-09-24 02:54:24 +00:00
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use math::{Abs, min, max, Sqrt};
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use to_str::ToStr;
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2012-09-07 10:48:47 +00:00
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//
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// N-dimensional Vector
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//
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2012-09-29 08:41:48 +00:00
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pub trait Vector<T> {
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2012-09-08 05:54:31 +00:00
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static pure fn dim() -> uint;
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2012-09-07 10:48:47 +00:00
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pure fn add_f(&&value:T) -> self;
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pure fn sub_f(&&value:T) -> self;
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pure fn mul_f(&&value:T) -> self;
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pure fn div_f(&&value:T) -> self;
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pure fn add_v(&&other: self) -> self;
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pure fn sub_v(&&other: self) -> self;
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2012-09-07 15:18:18 +00:00
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pure fn dot(&&other: self) -> T;
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2012-09-07 10:48:47 +00:00
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pure fn exact_eq(&&other:self) -> bool;
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pure fn magnitude2() -> T;
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pure fn magnitude() -> T;
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pure fn normalize() -> self;
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2012-09-07 18:45:07 +00:00
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pure fn lerp(&&other:self, &&value:T) -> self;
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pure fn abs() -> self;
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2012-09-08 05:54:31 +00:00
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pure fn min(&&other:self) -> self;
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pure fn max(&&other:self) -> self;
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static pure fn zero() -> self;
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static pure fn identity() -> self;
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2012-09-07 10:48:47 +00:00
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}
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2012-09-07 18:45:07 +00:00
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2012-09-08 05:54:31 +00:00
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2012-09-29 08:41:48 +00:00
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pub trait Vector2<T> {
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2012-09-10 03:18:27 +00:00
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// static pure fn _new(x:float, y:float) -> self;
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2012-09-07 10:48:47 +00:00
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// This is where I wish rust had properties ;)
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2012-09-07 14:17:26 +00:00
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pure fn x() -> T;
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pure fn y() -> T;
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2012-09-08 05:54:31 +00:00
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// static pure fn unit_x() -> self;
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// static pure fn unit_y() -> self;
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 08:41:48 +00:00
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pub trait Vector3<T> {
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2012-09-10 03:18:27 +00:00
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// error: duplicate function definition
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// static pure fn _new(x:float, y:float, z:float) -> self;
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2012-09-07 14:17:26 +00:00
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pure fn x() -> T;
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pure fn y() -> T;
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pure fn z() -> T;
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2012-09-07 10:48:47 +00:00
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2012-09-08 05:54:31 +00:00
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// static pure fn unit_x() -> self;
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// static pure fn unit_y() -> self;
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// static pure fn unit_z() -> self;
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2012-09-07 10:48:47 +00:00
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fn cross(&&other:self) -> self;
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}
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2012-09-29 08:41:48 +00:00
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pub trait Vector4<T> {
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2012-09-10 03:18:27 +00:00
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// error: duplicate function definition
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// static pure fn _new(x:float, y:float, z:float, w:float) -> self;
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2012-09-07 14:17:26 +00:00
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pure fn x() -> T;
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pure fn y() -> T;
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pure fn z() -> T;
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pure fn w() -> T;
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2012-09-08 05:54:31 +00:00
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// static pure fn unit_x() -> self;
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// static pure fn unit_y() -> self;
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// static pure fn unit_z() -> self;
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// static pure fn unit_w() -> self;
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2012-09-07 10:48:47 +00:00
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}
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//
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2012-09-07 18:49:52 +00:00
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// Vec2
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2012-09-07 10:48:47 +00:00
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//
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2012-09-29 08:41:48 +00:00
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pub struct Vec2 { data:[float * 2] }
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2012-09-07 10:48:47 +00:00
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2012-09-29 08:41:48 +00:00
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pub const vec2_zero :Vec2 = Vec2 { data: [ 0f, 0f ] };
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pub const vec2_unit_x :Vec2 = Vec2 { data: [ 1f, 0f ] };
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pub const vec2_unit_y :Vec2 = Vec2 { data: [ 0f, 1f ] };
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pub const vec2_identity :Vec2 = Vec2 { data: [ 1f, 1f ] };
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2012-09-08 05:54:31 +00:00
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2012-09-07 10:48:47 +00:00
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//
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2012-09-07 18:49:52 +00:00
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// Constructor
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2012-09-07 10:48:47 +00:00
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//
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2012-09-24 02:54:24 +00:00
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#[inline]
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2012-09-29 08:41:48 +00:00
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pub pure fn Vec2(x:float, y:float) -> Vec2 {
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2012-09-24 02:54:24 +00:00
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Vec2 { data: [ x, y ] }
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 08:41:48 +00:00
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pub impl Vec2: Vector2<float> {
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2012-09-24 02:54:24 +00:00
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// #[inline]
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// static pure fn _new(x:float, y:float) -> Vec2 {
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// Vec2 { data: [ x, y ] }
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2012-09-10 03:18:27 +00:00
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// }
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2012-09-24 02:54:24 +00:00
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#[inline] pure fn x() -> float { self.data[0] }
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#[inline] pure fn y() -> float { self.data[1] }
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2012-09-10 22:13:49 +00:00
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2012-09-24 02:54:24 +00:00
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// #[inline] static pure fn unit_x() -> Vec2 { Vec2(1f, 0f) }
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// #[inline] static pure fn unit_y() -> Vec2 { Vec2(0f, 1f) }
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// #[inline] static pure fn unit_z() -> Vec2 { Vec2(0f, 0f) }
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 08:41:48 +00:00
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pub impl Vec2: Vector<float> {
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2012-09-24 02:54:24 +00:00
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#[inline]
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2012-09-08 05:54:31 +00:00
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static pure fn dim() -> uint { 2 }
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2012-09-07 10:48:47 +00:00
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn add_f(&&value:float) -> Vec2 {
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Vec2(self[0] + value,
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2012-09-07 10:48:47 +00:00
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self[1] + value)
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn sub_f(&&value:float) -> Vec2 {
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Vec2(self[0] - value,
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2012-09-07 10:48:47 +00:00
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self[1] - value)
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn mul_f(&&value:float) -> Vec2 {
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Vec2(self[0] * value,
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2012-09-07 10:48:47 +00:00
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self[1] * value)
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn div_f(&&value:float) -> Vec2 {
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Vec2(self[0] / value,
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2012-09-07 10:48:47 +00:00
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self[1] / value)
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn add_v(&&other: Vec2) -> Vec2{
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Vec2(self[0] + other[0],
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2012-09-07 10:48:47 +00:00
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self[1] + other[1])
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn sub_v(&&other: Vec2) -> Vec2{
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Vec2(self[0] - other[0],
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2012-09-07 10:48:47 +00:00
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self[1] - other[1])
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn dot(&&other: Vec2) -> float {
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2012-09-07 15:18:18 +00:00
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self[0] * other[0] +
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self[1] * other[1]
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn exact_eq(&&other:Vec2) -> bool {
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2012-09-07 10:48:47 +00:00
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self[0] == other[0] &&
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self[1] == other[1]
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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2012-09-07 10:48:47 +00:00
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pure fn magnitude2() -> float {
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self[0] * self[0] +
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self[1] * self[1]
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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2012-09-07 10:48:47 +00:00
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pure fn magnitude() -> float {
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2012-09-10 02:55:15 +00:00
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self.magnitude2().sqrt()
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2012-09-07 10:48:47 +00:00
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn normalize() -> Vec2 {
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2012-09-07 14:17:26 +00:00
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let n = 1f / self.magnitude();
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2012-09-07 10:48:47 +00:00
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return self.mul_f(n);
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}
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2012-09-07 18:45:07 +00:00
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn lerp(&&other:Vec2, &&value:float) -> Vec2 {
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2012-09-07 18:45:07 +00:00
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self.add_v((other.sub_v(self)).mul_f(value))
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn abs() -> Vec2 {
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Vec2(self[0].abs(),
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2012-09-08 05:54:31 +00:00
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self[1].abs())
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2012-09-07 18:45:07 +00:00
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}
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn min(&&other:Vec2) -> Vec2 {
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Vec2(min(self[0], other[0]),
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2012-09-08 05:54:31 +00:00
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min(self[1], other[1]))
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}
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2012-09-07 18:45:07 +00:00
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2012-09-24 02:54:24 +00:00
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#[inline]
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pure fn max(&&other:Vec2) -> Vec2 {
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Vec2(max(self[0], other[0]),
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2012-09-08 05:54:31 +00:00
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max(self[1], other[1]))
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}
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2012-09-24 02:54:24 +00:00
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#[inline] static pure fn zero() -> Vec2 { Vec2(1f, 1f) }
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#[inline] static pure fn identity() -> Vec2 { Vec2(1f, 1f) }
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 10:37:46 +00:00
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pub impl Vec2: Index<uint, float> {
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#[inline]
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pure fn index(+i: uint) -> float {
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self.data[i]
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}
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}
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2012-09-29 10:25:49 +00:00
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pub impl Vec2: Neg<Vec2> {
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#[inline]
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pure fn neg() -> Vec2 {
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Vec2(-self[0], -self[1])
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}
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}
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pub impl Vec2: Eq {
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#[inline]
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pure fn eq(other: &Vec2) -> bool {
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self.fuzzy_eq(other)
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}
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#[inline]
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pure fn ne(other: &Vec2) -> bool {
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!(self == *other)
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}
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}
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pub impl Vec2: FuzzyEq {
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#[inline]
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pure fn fuzzy_eq(other: &Vec2) -> bool {
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self[0].fuzzy_eq(&other[0]) &&
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self[1].fuzzy_eq(&other[1])
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}
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}
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2012-09-29 08:41:48 +00:00
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pub impl Vec2: ToStr {
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2012-09-07 10:48:47 +00:00
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fn to_str() -> ~str {
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2012-09-24 02:54:24 +00:00
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fmt!("Vec2[ %f, %f ]", self[0], self[1])
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2012-09-07 10:48:47 +00:00
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}
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}
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//
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2012-09-07 18:49:52 +00:00
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// Vec3
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2012-09-07 10:48:47 +00:00
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//
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2012-09-29 08:41:48 +00:00
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pub struct Vec3 { data:[float * 3] }
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2012-09-07 10:48:47 +00:00
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2012-09-29 08:41:48 +00:00
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pub const vec3_zero :Vec3 = Vec3 { data: [ 0f, 0f, 0f ] };
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pub const vec3_unit_x :Vec3 = Vec3 { data: [ 1f, 0f, 0f ] };
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pub const vec3_unit_y :Vec3 = Vec3 { data: [ 0f, 1f, 0f ] };
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pub const vec3_unit_z :Vec3 = Vec3 { data: [ 0f, 0f, 1f ] };
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pub const vec3_identity :Vec3 = Vec3 { data: [ 1f, 1f, 1f ] };
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2012-09-07 10:48:47 +00:00
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//
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2012-09-07 18:49:52 +00:00
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// Constructor
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2012-09-07 10:48:47 +00:00
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//
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2012-09-24 02:54:24 +00:00
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#[inline]
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2012-09-29 08:41:48 +00:00
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pub pure fn Vec3(x:float, y:float, z:float) -> Vec3 {
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2012-09-24 02:54:24 +00:00
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Vec3 { data: [ x, y, z ] }
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 08:41:48 +00:00
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pub impl Vec3: Vector3<float> {
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2012-09-24 02:54:24 +00:00
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// #[inline]
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// static pure fn _new(x:float, y:float, z:float) -> Vec3 {
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// Vec2 { data: [ x, y, z ] }
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2012-09-10 03:18:27 +00:00
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// }
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2012-09-24 02:54:24 +00:00
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#[inline] pure fn x() -> float { self.data[0] }
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#[inline] pure fn y() -> float { self.data[1] }
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#[inline] pure fn z() -> float { self.data[2] }
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2012-09-07 10:48:47 +00:00
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2012-09-24 02:54:24 +00:00
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#[inline]
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fn cross(&&other:Vec3) -> Vec3 {
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Vec3((self[1] * other[2]) - (self[2] * other[1]),
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2012-09-07 10:48:47 +00:00
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(self[2] * other[0]) - (self[0] * other[2]),
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(self[0] * other[1]) - (self[1] * other[0]))
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}
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2012-09-10 22:13:49 +00:00
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2012-09-24 02:54:24 +00:00
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// #[inline] static pure fn unit_x() -> Vec3 { Vec3(1f, 0f, 0f) }
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// #[inline] static pure fn unit_y() -> Vec3 { Vec3(0f, 1f, 0f) }
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// #[inline] static pure fn unit_z() -> Vec3 { Vec3(0f, 0f, 1f) }
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub impl Vec3: Vector<float> {
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-08 05:54:31 +00:00
|
|
|
static pure fn dim() -> uint { 3 }
|
2012-09-07 10:48:47 +00:00
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn add_f(&&value:float) -> Vec3 {
|
|
|
|
Vec3(self[0] + value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] + value,
|
|
|
|
self[2] + value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn sub_f(&&value:float) -> Vec3 {
|
|
|
|
Vec3(self[0] - value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] - value,
|
|
|
|
self[2] - value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn mul_f(&&value:float) -> Vec3 {
|
|
|
|
Vec3(self[0] * value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] * value,
|
|
|
|
self[2] * value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn div_f(&&value:float) -> Vec3 {
|
|
|
|
Vec3(self[0] / value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] / value,
|
|
|
|
self[2] / value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn add_v(&&other: Vec3) -> Vec3{
|
|
|
|
Vec3(self[0] + other[0],
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] + other[1],
|
|
|
|
self[2] + other[2])
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn sub_v(&&other: Vec3) -> Vec3{
|
|
|
|
Vec3(self[0] - other[0],
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] - other[1],
|
|
|
|
self[2] - other[2])
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn dot(&&other: Vec3) -> float {
|
2012-09-07 15:18:18 +00:00
|
|
|
self[0] * other[0] +
|
|
|
|
self[1] * other[1] +
|
|
|
|
self[2] * other[2]
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn exact_eq(&&other:Vec3) -> bool {
|
2012-09-07 10:48:47 +00:00
|
|
|
self[0] == other[0] &&
|
|
|
|
self[1] == other[1] &&
|
|
|
|
self[2] == other[2]
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-07 10:48:47 +00:00
|
|
|
pure fn magnitude2() -> float {
|
|
|
|
self[0] * self[0] +
|
|
|
|
self[1] * self[1] +
|
|
|
|
self[2] * self[2]
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-07 10:48:47 +00:00
|
|
|
pure fn magnitude() -> float {
|
2012-09-10 02:55:15 +00:00
|
|
|
self.magnitude2().sqrt()
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn normalize() -> Vec3 {
|
2012-09-07 14:17:26 +00:00
|
|
|
let n = 1f / self.magnitude();
|
2012-09-07 10:48:47 +00:00
|
|
|
return self.mul_f(n);
|
|
|
|
}
|
2012-09-07 18:45:07 +00:00
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn lerp(&&other:Vec3, &&value:float) -> Vec3 {
|
2012-09-07 18:45:07 +00:00
|
|
|
self.add_v((other.sub_v(self)).mul_f(value))
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn abs() -> Vec3 {
|
|
|
|
Vec3(self[0].abs(),
|
2012-09-08 05:54:31 +00:00
|
|
|
self[1].abs(),
|
|
|
|
self[2].abs())
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn min(&&other:Vec3) -> Vec3 {
|
|
|
|
Vec3(min(self[0], other[0]),
|
2012-09-08 05:54:31 +00:00
|
|
|
min(self[1], other[1]),
|
|
|
|
min(self[2], other[2]))
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn max(&&other:Vec3) -> Vec3 {
|
|
|
|
Vec3(max(self[0], other[0]),
|
2012-09-08 05:54:31 +00:00
|
|
|
max(self[1], other[1]),
|
|
|
|
max(self[2], other[2]))
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline] static pure fn zero() -> Vec3 { Vec3(1f, 1f, 1f) }
|
|
|
|
#[inline] static pure fn identity() -> Vec3 { Vec3(1f, 1f, 1f) }
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-29 10:37:46 +00:00
|
|
|
pub impl Vec3: Index<uint, float> {
|
|
|
|
#[inline]
|
|
|
|
pure fn index(+i: uint) -> float {
|
|
|
|
self.data[i]
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-09-29 10:25:49 +00:00
|
|
|
pub impl Vec3: Neg<Vec3> {
|
|
|
|
#[inline]
|
|
|
|
pure fn neg() -> Vec3 {
|
|
|
|
Vec3(-self[0], -self[1], -self[2])
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub impl Vec3: Eq {
|
|
|
|
#[inline]
|
|
|
|
pure fn eq(other: &Vec3) -> bool {
|
|
|
|
self.fuzzy_eq(other)
|
|
|
|
}
|
|
|
|
|
|
|
|
#[inline]
|
|
|
|
pure fn ne(other: &Vec3) -> bool {
|
|
|
|
!(self == *other)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
pub impl Vec3: FuzzyEq {
|
|
|
|
#[inline]
|
|
|
|
pure fn fuzzy_eq(other: &Vec3) -> bool {
|
|
|
|
self[0].fuzzy_eq(&other[0]) &&
|
|
|
|
self[1].fuzzy_eq(&other[1]) &&
|
|
|
|
self[2].fuzzy_eq(&other[2])
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub impl Vec3: ToStr {
|
2012-09-07 10:48:47 +00:00
|
|
|
fn to_str() -> ~str {
|
2012-09-24 02:54:24 +00:00
|
|
|
fmt!("Vec3[ %f, %f, %f ]", self[0], self[1], self[2])
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
2012-09-07 18:49:52 +00:00
|
|
|
// Vec4
|
2012-09-07 10:48:47 +00:00
|
|
|
//
|
2012-09-29 08:41:48 +00:00
|
|
|
pub struct Vec4 { data:[float * 4] }
|
2012-09-07 10:48:47 +00:00
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub const vec4_zero :Vec4 = Vec4 { data: [ 0f, 0f, 0f, 0f ] };
|
|
|
|
pub const vec4_unit_x :Vec4 = Vec4 { data: [ 1f, 0f, 0f, 0f ] };
|
|
|
|
pub const vec4_unit_y :Vec4 = Vec4 { data: [ 0f, 1f, 0f, 0f ] };
|
|
|
|
pub const vec4_unit_z :Vec4 = Vec4 { data: [ 0f, 0f, 1f, 0f ] };
|
|
|
|
pub const vec4_unit_w :Vec4 = Vec4 { data: [ 0f, 0f, 0f, 1f ] };
|
|
|
|
pub const vec4_identity :Vec4 = Vec4 { data: [ 1f, 1f, 1f, 1f ] };
|
2012-09-07 10:48:47 +00:00
|
|
|
|
|
|
|
//
|
2012-09-07 18:49:52 +00:00
|
|
|
// Constructor
|
2012-09-07 10:48:47 +00:00
|
|
|
//
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-29 08:41:48 +00:00
|
|
|
pub pure fn Vec4(x:float, y:float, z:float, w:float) -> Vec4 {
|
2012-09-24 02:54:24 +00:00
|
|
|
Vec4 { data: [ x, y, z, w ] }
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub impl Vec4: Vector4<float> {
|
2012-09-24 02:54:24 +00:00
|
|
|
// #[inline]
|
|
|
|
// static pure fn _new(x:float, y:float, z:float, w:float) -> Vec3 {
|
|
|
|
// Vec2 { data: [ x, y, z, w ] }
|
2012-09-10 03:18:27 +00:00
|
|
|
// }
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline] pure fn x() -> float { self.data[0] }
|
|
|
|
#[inline] pure fn y() -> float { self.data[1] }
|
|
|
|
#[inline] pure fn z() -> float { self.data[2] }
|
|
|
|
#[inline] pure fn w() -> float { self.data[3] }
|
2012-09-10 22:13:49 +00:00
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
// #[inline] static pure fn unit_x() -> Vec4 { Vec4(1f, 0f, 0f, 0f) }
|
|
|
|
// #[inline] static pure fn unit_y() -> Vec4 { Vec4(0f, 1f, 0f, 0f) }
|
|
|
|
// #[inline] static pure fn unit_z() -> Vec4 { Vec4(0f, 0f, 1f, 0f) }
|
|
|
|
// #[inline] static pure fn unit_w() -> Vec4 { Vec4(0f, 0f, 0f, 1f) }
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub impl Vec4: Vector<float> {
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-08 05:54:31 +00:00
|
|
|
static pure fn dim() -> uint { 4 }
|
2012-09-07 10:48:47 +00:00
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn add_f(&&value:float) -> Vec4 {
|
|
|
|
Vec4(self[0] + value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] + value,
|
|
|
|
self[2] + value,
|
|
|
|
self[3] + value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn sub_f(&&value:float) -> Vec4 {
|
|
|
|
Vec4(self[0] - value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] - value,
|
|
|
|
self[2] - value,
|
|
|
|
self[3] - value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn mul_f(&&value:float) -> Vec4 {
|
|
|
|
Vec4(self[0] * value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] * value,
|
|
|
|
self[2] * value,
|
|
|
|
self[3] * value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn div_f(&&value:float) -> Vec4 {
|
|
|
|
Vec4(self[0] / value,
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] / value,
|
|
|
|
self[2] / value,
|
|
|
|
self[3] / value)
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn add_v(&&other: Vec4) -> Vec4{
|
|
|
|
Vec4(self[0] + other[0],
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] + other[1],
|
|
|
|
self[2] + other[2],
|
|
|
|
self[3] + other[3])
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn sub_v(&&other: Vec4) -> Vec4{
|
|
|
|
Vec4(self[0] - other[0],
|
2012-09-07 10:48:47 +00:00
|
|
|
self[1] - other[1],
|
|
|
|
self[2] - other[2],
|
|
|
|
self[3] - other[3])
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn dot(&&other:Vec4) -> float {
|
2012-09-07 15:18:18 +00:00
|
|
|
self[0] * other[0] +
|
|
|
|
self[1] * other[1] +
|
|
|
|
self[2] * other[2] +
|
|
|
|
self[3] * other[3]
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn exact_eq(&&other:Vec4) -> bool {
|
2012-09-07 10:48:47 +00:00
|
|
|
self[0] == other[0] &&
|
|
|
|
self[1] == other[1] &&
|
|
|
|
self[2] == other[2] &&
|
|
|
|
self[3] == other[3]
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-07 10:48:47 +00:00
|
|
|
pure fn magnitude2() -> float {
|
|
|
|
self[0] * self[0] +
|
|
|
|
self[1] * self[1] +
|
|
|
|
self[2] * self[2] +
|
2012-09-07 18:45:07 +00:00
|
|
|
self[3] * self[3]
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
2012-09-07 10:48:47 +00:00
|
|
|
pure fn magnitude() -> float {
|
2012-09-10 02:55:15 +00:00
|
|
|
self.magnitude2().sqrt()
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn normalize() -> Vec4 {
|
2012-09-07 14:17:26 +00:00
|
|
|
let n = 1f / self.magnitude();
|
2012-09-07 10:48:47 +00:00
|
|
|
return self.mul_f(n);
|
|
|
|
}
|
2012-09-07 18:45:07 +00:00
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn lerp(&&other:Vec4, &&value:float) -> Vec4 {
|
2012-09-07 18:45:07 +00:00
|
|
|
self.add_v((other.sub_v(self)).mul_f(value))
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn abs() -> Vec4 {
|
|
|
|
Vec4(self[0].abs(),
|
2012-09-08 05:54:31 +00:00
|
|
|
self[1].abs(),
|
|
|
|
self[2].abs(),
|
|
|
|
self[3].abs())
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn min(&&other:Vec4) -> Vec4 {
|
|
|
|
Vec4(min(self[0], other[0]),
|
2012-09-08 05:54:31 +00:00
|
|
|
min(self[1], other[1]),
|
|
|
|
min(self[2], other[2]),
|
|
|
|
min(self[3], other[3]))
|
|
|
|
}
|
|
|
|
|
2012-09-24 02:54:24 +00:00
|
|
|
#[inline]
|
|
|
|
pure fn max(&&other:Vec4) -> Vec4 {
|
|
|
|
Vec4(max(self[0], other[0]),
|
2012-09-08 05:54:31 +00:00
|
|
|
max(self[1], other[1]),
|
|
|
|
max(self[2], other[2]),
|
|
|
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max(self[3], other[3]))
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}
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2012-09-24 02:54:24 +00:00
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#[inline] static pure fn zero() -> Vec4 { Vec4(1f, 1f, 1f, 1f) }
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#[inline] static pure fn identity() -> Vec4 { Vec4(1f, 1f, 1f, 1f) }
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2012-09-07 10:48:47 +00:00
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}
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2012-09-29 10:37:46 +00:00
|
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pub impl Vec4: Index<uint, float> {
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#[inline]
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pure fn index(+i: uint) -> float {
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|
self.data[i]
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}
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}
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2012-09-29 10:25:49 +00:00
|
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pub impl Vec4: Neg<Vec4> {
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#[inline]
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|
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|
pure fn neg() -> Vec4 {
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|
|
Vec4(-self[0], -self[1], -self[2], -self[3])
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}
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}
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|
|
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|
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|
pub impl Vec4: Eq {
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|
|
|
#[inline]
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|
|
|
pure fn eq(other: &Vec4) -> bool {
|
|
|
|
self.fuzzy_eq(other)
|
|
|
|
}
|
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|
|
|
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|
#[inline]
|
|
|
|
pure fn ne(other: &Vec4) -> bool {
|
|
|
|
!(self == *other)
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|
|
|
}
|
|
|
|
}
|
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|
|
|
|
|
|
pub impl Vec4: FuzzyEq {
|
|
|
|
#[inline]
|
|
|
|
pure fn fuzzy_eq(other: &Vec4) -> bool {
|
|
|
|
self[0].fuzzy_eq(&other[0]) &&
|
|
|
|
self[1].fuzzy_eq(&other[1]) &&
|
|
|
|
self[2].fuzzy_eq(&other[2]) &&
|
|
|
|
self[3].fuzzy_eq(&other[3])
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-09-29 08:41:48 +00:00
|
|
|
pub impl Vec4: ToStr {
|
2012-09-07 10:48:47 +00:00
|
|
|
fn to_str() -> ~str {
|
2012-09-24 02:54:24 +00:00
|
|
|
fmt!("Vec4[ %f, %f, %f, %f ]", self[0], self[1], self[2], self[3])
|
2012-09-07 10:48:47 +00:00
|
|
|
}
|
|
|
|
}
|