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];
57 int src_offset_x, src_offset_y;
58 int dst_offset_x, dst_offset_y;
61 Bitmap *crumbled_bitmap;
62 int crumbled_src_x, crumbled_src_y;
63 int crumbled_border_size;
64 int crumbled_tile_size;
66 boolean has_crumbled_graphics;
67 boolean preserve_background;
69 int unique_identifier; /* used to identify needed screen updates */
72 struct EngineSnapshotInfo_EM
74 struct GameInfo_EM game_em;
75 unsigned int RandomEM;
77 struct PLAYER ply[MAX_PLAYERS];
84 // ----------------------------------------------------------------------------
86 // ----------------------------------------------------------------------------
88 extern struct GlobalInfo_EM global_em_info;
89 extern struct GameInfo_EM game_em;
90 extern struct LevelInfo_EM native_em_level;
91 extern struct GraphicInfo_EM graphic_info_em_object[TILE_MAX][8];
92 extern struct GraphicInfo_EM graphic_info_em_player[MAX_PLAYERS][PLY_MAX][8];
93 extern struct EngineSnapshotInfo_EM engine_snapshot_em;
95 void em_open_all(void);
96 void em_close_all(void);
98 void InitGfxBuffers_EM(void);
100 void InitGameEngine_EM(void);
101 void GameActions_EM(byte *, boolean);
103 unsigned int InitEngineRandom_EM(int);
105 void setLevelInfoToDefaults_EM(void);
106 boolean LoadNativeLevel_EM(char *, boolean);
108 int getFieldbufferOffsetX_EM(void);
109 int getFieldbufferOffsetY_EM(void);
111 void BlitScreenToBitmap_EM(Bitmap *);
112 void RedrawPlayfield_EM(boolean);
114 void LoadEngineSnapshotValues_EM(void);
115 void SaveEngineSnapshotValues_EM(void);
117 boolean checkIfAllPlayersFitToScreen(void);