Basic.h

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int     min_i               (int a, int b);

int     max_i               (int a, int b);
int     clamp_i             (int val, int min, int max); 

float   min_f               (float a, float b); 
float   max_f               (float a, float b); 
float   clamp_f             (float val, float min, float max); 

void    rect_copy           (int dst[2][2], int src[2][2]);
int     rect_contains_pt    (int rect[2][2], int pt[2]);
int     rect_width          (int rect[2][2]);
int     rect_height         (int rect[2][2]);