1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef AGS_ENGINE_AC_ROUTEFND_H
24 #define AGS_ENGINE_AC_ROUTEFND_H
25 
26 #include "ags/shared/ac/game_version.h"
27 
28 namespace AGS3 {
29 
30 // Forward declaration
31 namespace AGS {
32 namespace Shared {
33 class Bitmap;
34 } // namespace Shared
35 } // namespace AGS
36 
37 struct MoveList;
38 
39 void init_pathfinder(GameDataVersion game_file_version);
40 void shutdown_pathfinder();
41 
42 void set_wallscreen(AGS::Shared::Bitmap *wallscreen);
43 
44 int can_see_from(int x1, int y1, int x2, int y2);
45 void get_lastcpos(int &lastcx, int &lastcy);
46 // NOTE: pathfinder implementation mostly needs to know proportion between x and y speed
47 void set_route_move_speed(int speed_x, int speed_y);
48 
49 int find_route(short srcx, short srcy, short xx, short yy, AGS::Shared::Bitmap *onscreen, int movlst, int nocross = 0, int ignore_walls = 0);
50 void calculate_move_stage(MoveList *mlsp, int aaa);
51 
52 } // namespace AGS3
53 
54 #endif
55