35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
// Copyright © 2018 Graham Sanderson, all rights reserved.
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#define max(x, y) ((x) < (y) ? (y) : (x))
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#define min(x, y) ((x) < (y) ? (x) : (y))
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#define minmax(x, mi, ma) (min(max(x, mi), ma))
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// To make pitch values down=0, up=1
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#define PITCH_BASE (-0.5)
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// π!
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#define pi (3.14159265358979323846f)
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#define pi2 (pi / 2.0f)
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#define pi4 (pi / 4.0f)
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#define tau (pi * 2.0f)
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optargs(1) u64 Lith_CRC64(void const *data, size_t len, u64 result);
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optargs(1) u64 Lith_CRC64_str(void __str_ars const *data, size_t len, u64 result);
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optargs(1) float RandomFloat(float max, float min);
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float mag2f(float x, float y);
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stkcall fixed mag2k(fixed x, fixed y);
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stkcall int mag2i(int x, int y);
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fixed lerpk(fixed a, fixed b, fixed t);
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fixed64 lerplk(fixed64 a, fixed64 b, fixed64 t);
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float lerpf(float a, float b, float t);
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double lerp(double a, double b, double t);
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stkcall bool aabb(int x, int y, int z, int w, int x2, int y2);
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stkcall int ceilk(fixed n);
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stkcall float bzpolyf(float a, float b, float t);
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stkcall int bzpolyi(int a, int b, float t);
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struct vec2i qbezieri(int x1, int y1, int x2, int y2, int x3, int y3, float t);
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struct vec2f qbezierf(float x1, float y1, float x2, float y2, float x3, float y3, float t);
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struct polar ctopol(fixed x, fixed y);
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// EOF
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