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Fixed randomness
* Fixed mistake that caused random values to follow a constant pattern
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1 changed files with 7 additions and 0 deletions
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@ -403,6 +403,7 @@ Vector UTIL_RandomPointOnCircle(const Vector origin, const float radius)
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{
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Vector result;
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srand(time(NULL));
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float random = ((float)rand()) / (float)RAND_MAX;
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float a = random * (MATH_PI * 2);
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@ -642,6 +643,7 @@ float fInterpConstantTo(float start, float end, float DeltaTime, float InterpSpe
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float frandrange(float MinValue, float MaxValue)
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{
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srand(time(NULL));
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return ((float(rand()) / float(RAND_MAX)) * (MaxValue - MinValue)) + MinValue;
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}
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@ -649,11 +651,14 @@ int irandrange(int MinValue, int MaxValue)
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{
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if (MinValue == MaxValue) { return MinValue; }
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srand(time(NULL));
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return MinValue + rand() / (RAND_MAX / (MaxValue - MinValue + 1) + 1);
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}
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bool randbool()
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{
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srand(time(NULL));
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return (rand() & 1);
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}
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@ -661,6 +666,8 @@ Vector random_unit_vector_within_cone(const Vector Direction, double cone_half_a
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{
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Vector Result = ZERO_VECTOR;
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srand(time(NULL));
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double u = ((double)rand() / RAND_MAX) * 2 - 1; // random number in [-1, 1]
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double phi = ((double)rand() / RAND_MAX) * 2 * M_PI; // random number in [0, 2*pi]
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double r = sqrt(1 - u * u);
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