Generate random float between two floats

Question

I know this is a rather simple question, but I\'m just not too good at maths.

I know how to generate a random float between 0 and 1:

float random = ((flo         


        

Answer 1

float RandomFloat(float min, float max)
{
    // this  function assumes max > min, you may want 
    // more robust error checking for a non-debug build
    assert(max > min); 
    float random = ((float) rand()) / (float) RAND_MAX;

    // generate (in your case) a float between 0 and (4.5-.78)
    // then add .78, giving you a float between .78 and 4.5
    float range = max - min;  
    return (random*range) + min;
}