4 // ============================================================================
5 // functions and definitions exported from game_em to main program
6 // ============================================================================
11 // ----------------------------------------------------------------------------
12 // constant definitions
13 // ----------------------------------------------------------------------------
15 #define EM_MAX_CAVE_WIDTH CAVE_WIDTH
16 #define EM_MAX_CAVE_HEIGHT CAVE_HEIGHT
19 // ----------------------------------------------------------------------------
20 // exported structures
21 // ----------------------------------------------------------------------------
33 boolean any_player_moving;
34 boolean any_player_snapping;
36 boolean use_single_button;
37 boolean use_snap_key_bug;
39 int last_moving_player;
40 int last_player_direction[MAX_PLAYERS];
43 struct PLAYER *ply[MAX_PLAYERS];
50 short cave[CAVE_WIDTH][CAVE_HEIGHT];
59 int src_offset_x, src_offset_y;
60 int dst_offset_x, dst_offset_y;
63 Bitmap *crumbled_bitmap;
64 int crumbled_src_x, crumbled_src_y;
65 int crumbled_border_size;
66 int crumbled_tile_size;
68 boolean has_crumbled_graphics;
69 boolean preserve_background;
71 int unique_identifier; /* used to identify needed screen updates */
74 struct EngineSnapshotInfo_EM
76 struct GameInfo_EM game_em;
77 unsigned int RandomEM;
79 struct PLAYER ply[MAX_PLAYERS];
86 // ----------------------------------------------------------------------------
88 // ----------------------------------------------------------------------------
90 extern struct GlobalInfo_EM global_em_info;
91 extern struct GameInfo_EM game_em;
92 extern struct LevelInfo_EM native_em_level;
93 extern struct GraphicInfo_EM graphic_info_em_object[TILE_MAX][8];
94 extern struct GraphicInfo_EM graphic_info_em_player[MAX_PLAYERS][PLY_MAX][8];
95 extern struct EngineSnapshotInfo_EM engine_snapshot_em;
97 void em_open_all(void);
98 void em_close_all(void);
100 void InitGfxBuffers_EM(void);
102 void InitGameEngine_EM(void);
103 void GameActions_EM(byte *, boolean);
105 unsigned int InitEngineRandom_EM(int);
107 void setLevelInfoToDefaults_EM(void);
108 boolean LoadNativeLevel_EM(char *, boolean);
110 int getFieldbufferOffsetX_EM(void);
111 int getFieldbufferOffsetY_EM(void);
113 void BlitScreenToBitmap_EM(Bitmap *);
114 void RedrawPlayfield_EM(boolean);
116 void LoadEngineSnapshotValues_EM(void);
117 void SaveEngineSnapshotValues_EM(void);
119 boolean checkIfAllPlayersFitToScreen(void);