An Adventure Game Studio module to generate standard normal random numbers
NormRnd is a tiny (2.1kB) module adding a standard normal random number function. It uses Box-Muller method, which should be reasonably fast.
float normrnd_unitary()Returns a standard normal random number, as a float, with median 0, and variance 1.
int normrnd_asint(int median, int sigma, int clamp_ceil, int clamp_floor)Returns a standard normal random number, as a int, requires passing a defined median and sigma. It also allow clamping to restrict the possible returning values. If clamp_ceil and clamp_floor are equal, clamping is disabled.
I am Érico Vieira Porto, my work was porting to AGS and giving utilitary functions, this code is based on Box-Muller method, implemented in C by Prof Darren Wilkinson.