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Ginger Bill
20 lines
580 B
Odin
20 lines
580 B
Odin
type Vec2: {2}f32
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type Vec3: {3}f32
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type Vec4: {4}f32
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type Mat2: {4}f32
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sqrtf :: proc(x: f32) -> f32 #foreign "llvm.sqrt.f32"
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sinf :: proc(x: f32) -> f32 #foreign "llvm.sin.f32"
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cosf :: proc(x: f32) -> f32 #foreign "llvm.cos.f32"
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vec2_dot :: proc(a, b: Vec2) -> f32 { c := a*b; return c[0] + c[1]; }
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vec3_dot :: proc(a, b: Vec3) -> f32 { c := a*b; return c[0] + c[1] + c[2]; }
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lerp :: proc(a, b, t: f32) -> f32 { return a*(1-t) + b*t; }
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vec2_mag :: proc(a: Vec2) -> f32 { return sqrtf(vec2_dot(a, a)); }
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vec3_mag :: proc(a: Vec3) -> f32 { return sqrtf(vec3_dot(a, a)); }
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