src/rect.h

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