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]);