Capture and liberation of ghosts

Fixed coordinate in field_has_coin.
Added marks on the field for the liberation zone (1 in front of #).
Prison parameters for the ghost are set.
Fixed condition in BFS search (additionally exclude the current point in the
loop, dx == 0 && dy == 0).

1 files changed, 53 insertions, 19 deletions

diff --git a/ghosts.h b/ghosts.h
index d55da6a..3eb58f7 100644
--- a/ghosts.h
+++ b/ghosts.h
@@ -4,25 +4,34 @@
 #include "field.h"
 
 enum {
-    red_y = 14,
-    red_x = 15,
-    red_home_y = -1,
-    red_home_x = 25,
-    pink_y = red_y + 1,
-    pink_x = red_x - 2,
-    pink_home_y = red_home_y,
-    pink_home_x = 2,
-    blue_y = red_y,
-    blue_x = red_x-1,
-    blue_home_y = 29,
-    blue_home_x = 27,
-    orange_y = red_y + 1,
-    orange_x = red_x - 3,
-    orange_home_y = blue_home_y,
-    orange_home_x = 0,
-    pink_shift = 4,
-    blue_shift = 2,
-    orange_search_limit = 8
+    red_y               = 14,
+    red_x               = 15,
+    red_home_y          = -1,
+    red_home_x          = 25,
+    pink_y              = red_y + 1,
+    pink_x              = red_x - 2,
+    pink_home_y         = red_home_y,
+    pink_home_x         = 2,
+    blue_y              = red_y,
+    blue_x              = red_x-1,
+    blue_home_y         = 29,
+    blue_home_x         = 27,
+    orange_y            = red_y + 1,
+    orange_x            = red_x - 3,
+    orange_home_y       = blue_home_y,
+    orange_home_x       = 0,
+    pink_shift          = 4,
+    blue_shift          = 2,
+    orange_search_limit = 8,
+    red_prison_y        = 14,
+    red_prison_x        = 14,
+    pink_prison_y       = red_prison_y + 1,
+    pink_prison_x       = red_prison_x,
+    blue_prison_y       = red_prison_y,
+    blue_prison_x       = red_prison_x - 1,
+    orange_prison_y     = red_prison_y + 1,
+    orange_prison_x     = red_prison_x - 1,
+    liberation_y        = 12
 };
 
 enum ghost_color { red, pink, blue, orange };
@@ -34,12 +43,26 @@ struct coordinates {
     int x;
 };
 
+struct prison {
+    int prison_counter;
+    struct coordinates position;
+    int active;
+};
+
+struct capture {
+    struct coordinates previous_pac_position;
+    struct coordinates previous_ghost_position;
+    int status;
+};
+
 struct ghost_type {
     struct coordinates position;
     struct coordinates home_position;
     enum ghost_color color;
     int frightened_status;
     enum movement_direction direction;
+    struct prison prison_params;
+    struct capture capture_info;
 };
 
 void initialize_ghost(struct ghost_type *ghost, enum ghost_color color);
@@ -81,4 +104,15 @@ void reverse_all_ghosts(struct ghost_type *red_ghost,
                         struct ghost_type *blue_ghost,
                         struct ghost_type *orange_ghost);
 
+void set_frightened_status(int status, struct ghost_type *red_ghost,
+                           struct ghost_type *pink_ghost,
+                           struct ghost_type *blue_ghost,
+                           struct ghost_type *orange_ghost);
+
+int is_pac_nearby(struct pacman pac, struct ghost_type ghost);
+
+void set_capture_info(struct ghost_type *ghost, const struct pacman *pac);
+
+void catch_ghost(const game_space field, struct ghost_type *ghost);
+
 #endif