45 lines
855 B
Plaintext
45 lines
855 B
Plaintext
#import "modules/std.sx";
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math :: #import "modules/math";
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dot :: (a: Vector(3,f32), b: Vector(3,f32)) -> f32 {
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a.x*b.x + a.y*b.y + a.z*b.z;
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}
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cross :: (a: Vector(3,f32), b: Vector(3,f32)) -> Vector(3,f32) {
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.[a.y*b.z - a.z*b.y, a.z*b.x - a.x*b.z, a.x*b.y - a.y*b.x];
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}
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length :: (v: Vector(3,f32)) -> f32 {
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math.sqrt(dot(v, v));
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}
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normalize :: (v: Vector(3,f32)) -> Vector(3,f32) {
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v / length(v);
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}
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vec3 :: (x:f32, y:f32, z:f32) -> Vector(3,f32) {
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.[x, y, z];
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}
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main :: () {
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a := vec3(1, 0, 0);
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b := vec3(0, 1, 0);
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// dot product
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d := dot(a, b);
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print("dot: {}\n", d);
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// cross product
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cr := cross(a, b);
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print("cross: {}\n", cr);
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// length
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v := vec3(3, 4, 0);
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len := length(v);
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print("length: {}\n", len);
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// normalize
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n := normalize(v);
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print("norm: {}\n", n);
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}
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