crawl-ref/source/coord.h

   1 #ifndef COORD_H
   2 #define COORD_H
   3
   4 bool in_bounds_x(int x);
   5 bool in_bounds_y(int y);
   6 bool in_bounds(int x, int y);
   7 bool map_bounds_x(int x);
   8 bool map_bounds_y(int y);
   9 bool map_bounds(int x, int y);
  10 coord_def random_in_bounds();
  11
  12 inline bool in_bounds(const coord_def &p)
  13 {
  14     return in_bounds(p.x, p.y);
  15 }
  16
  17 inline bool map_bounds(const coord_def &p)
  18 {
  19     return map_bounds(p.x, p.y);
  20 }
  21
  22 // Checks that a given point is within the map, excluding 'margin' squares at
  23 // the edge of the map.
  24 bool map_bounds_with_margin(coord_def p, int margin);
  25
  26 // Determines if the coordinate is within bounds of an LOS array.
  27 inline bool show_bounds(const coord_def &p)
  28 {
  29     return (p.x >= 0 && p.x < ENV_SHOW_DIAMETER
  30             && p.y >= 0 && p.y < ENV_SHOW_DIAMETER);
  31 }
  32
  33 int grid_distance(const coord_def& p1, const coord_def& p2);
  34 int distance(const coord_def& p1, const coord_def& p2);
  35 bool adjacent(const coord_def& p1, const coord_def& p2);
  36
  37 // Conversion between different coordinate systems.
  38 // XXX: collect all of these here?
  39
  40 coord_def player2grid(const coord_def& pc);
  41 coord_def grid2player(const coord_def& pc);
  42
  43 #endif