src/rect.h

   1 #ifndef RECT_H_
   2 #define RECT_H_
   3
   4 #include <SDL2/SDL.h>
   5 #include "./point.h"
   6
   7 typedef enum rect_side_t {
   8     RECT_SIDE_LEFT = 0,
   9     RECT_SIDE_RIGHT,
  10     RECT_SIDE_TOP,
  11     RECT_SIDE_BOTTOM,
  12
  13     RECT_SIDE_N
  14 } rect_side_t;
  15
  16 typedef struct rect_t {
  17     float x, y, w, h;
  18 } rect_t;
  19
  20 typedef struct line_t {
  21     point_t p1;
  22     point_t p2;
  23 } line_t;
  24
  25 rect_t rect(float x, float y, float w, float h);
  26 rect_t rect_from_vecs(point_t position, vec_t size);
  27
  28 rect_t rects_overlap_area(rect_t rect1, rect_t rect2);
  29
  30 int rect_contains_point(rect_t rect, point_t p);
  31
  32 int rects_overlap(rect_t rect1, rect_t rect2);
  33
  34 void rect_object_impact(const rect_t *object,
  35                         const rect_t *obstacle,
  36                         int *sides);
  37
  38 line_t rect_side(rect_t rect, rect_side_t side);
  39
  40 rect_t rect_from_point(point_t p, float w, float h);
  41
  42 float line_length(line_t line);
  43
  44 SDL_Rect rect_for_sdl(rect_t rect);
  45
  46 #endif  // RECT_H_