Generate random float between two floats

float RandomFloat(float a, float b) {
    float random = ((float) rand()) / (float) RAND_MAX;
    float diff = b - a;
    float r = random * diff;
    return a + r;
}

This works by returning a plus something, where something is between 0 and b-a which makes the end result lie in between a and b.

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