97 lines
1.8 KiB
Rust
97 lines
1.8 KiB
Rust
use core::ops::{Add, Mul, Sub};
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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pub struct Vec2 {
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pub x: f32,
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pub y: f32,
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}
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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pub struct Vec3 {
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pub x: f32,
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pub y: f32,
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pub z: f32,
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}
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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pub struct Vec4 {
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pub x: f32,
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pub y: f32,
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pub z: f32,
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pub w: f32,
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}
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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pub struct Mat4 {
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pub m: [f32; 16],
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}
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#[allow(non_camel_case_types)]
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pub type pxl8_vec2 = Vec2;
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#[allow(non_camel_case_types)]
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pub type pxl8_vec3 = Vec3;
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#[allow(non_camel_case_types)]
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pub type pxl8_vec4 = Vec4;
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#[allow(non_camel_case_types)]
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pub type pxl8_mat4 = Mat4;
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pub const VEC3_ZERO: Vec3 = Vec3 { x: 0.0, y: 0.0, z: 0.0 };
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pub const VEC3_Y: Vec3 = Vec3 { x: 0.0, y: 1.0, z: 0.0 };
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pub trait Vec3Ext {
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fn new(x: f32, y: f32, z: f32) -> Self;
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fn dot(self, rhs: Self) -> f32;
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}
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impl Vec3Ext for pxl8_vec3 {
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fn new(x: f32, y: f32, z: f32) -> Self {
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Self { x, y, z }
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}
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fn dot(self, rhs: Self) -> f32 {
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self.x * rhs.x + self.y * rhs.y + self.z * rhs.z
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}
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}
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impl Default for pxl8_vec3 {
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fn default() -> Self {
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VEC3_ZERO
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}
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}
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impl Add for pxl8_vec3 {
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type Output = Self;
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fn add(self, rhs: Self) -> Self {
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Self {
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x: self.x + rhs.x,
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y: self.y + rhs.y,
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z: self.z + rhs.z,
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}
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}
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}
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impl Sub for pxl8_vec3 {
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type Output = Self;
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fn sub(self, rhs: Self) -> Self {
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Self {
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x: self.x - rhs.x,
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y: self.y - rhs.y,
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z: self.z - rhs.z,
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}
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}
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}
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impl Mul<f32> for pxl8_vec3 {
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type Output = Self;
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fn mul(self, rhs: f32) -> Self {
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Self {
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x: self.x * rhs,
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y: self.y * rhs,
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z: self.z * rhs,
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}
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}
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}
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