41 lines
774 B
C
41 lines
774 B
C
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#pragma once
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struct Vector3f
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{
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float x, y, z;
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};
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inline float VecDotProduct(const Vector3f& v1, const Vector3f& v2)
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{
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return v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
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}
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inline float VecMagnitude(const Vector3f& v)
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{
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return sqrtf(VecDotProduct(v, v));
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}
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inline Vector3f VecMake(float x, float y, float z)
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{
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Vector3f v = {x, y, z};
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return v;
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}
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inline Vector3f VecCrossProduct(const Vector3f& v1, const Vector3f& v2)
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{
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return VecMake(
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v1.y * v2.z - v1.z * v2.y,
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v1.z * v2.x - v1.x * v2.z,
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v1.x * v2.y - v1.y * v2.x);
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}
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inline Vector3f VecScale(float s, const Vector3f& v)
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{
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return VecMake(s * v.x, s * v.y, s * v.z);
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}
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inline Vector3f VecNormalize(const Vector3f& v)
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{
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return VecScale(1.0f / VecMagnitude(v), v);
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}
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