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Optimize Vector2Rotate() function (#2340)

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This commit is contained in:
Jaedeok Kim
2022-02-14 02:43:17 +09:00
committed by GitHub
parent f40eed5adf
commit b54e9db764
1 changed files with 6 additions and 3 deletions
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9
src/raymath.h
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@@ -189,7 +189,7 @@ RMAPI float Normalize(float value, float start, float end)
// Remap input value within input range to output range // Remap input value within input range to output range
RMAPI float Remap(float value, float inputStart, float inputEnd, float outputStart, float outputEnd) RMAPI float Remap(float value, float inputStart, float inputEnd, float outputStart, float outputEnd)
{ {
float result =(value - inputStart)/(inputEnd - inputStart)*(outputEnd - outputStart) + outputStart; float result = (value - inputStart)/(inputEnd - inputStart)*(outputEnd - outputStart) + outputStart;
return result; return result;
} }
@@ -378,8 +378,11 @@ RMAPI Vector2 Vector2Rotate(Vector2 v, float angle)
{ {
Vector2 result = { 0 }; Vector2 result = { 0 };
result.x = v.x*cosf(angle) - v.y*sinf(angle); float cosres = cosf(angle);
result.y = v.x*sinf(angle) + v.y*cosf(angle); float sinres = sinf(angle);
result.x = v.x*cosres - v.y*sinres;
result.y = v.x*sinres + v.y*cosres;
return result; return result;
} }