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 ULTIMA8_WORLD_GRAVITYPROCESS_H
24 #define ULTIMA8_WORLD_GRAVITYPROCESS_H
25 
26 #include "ultima/ultima8/kernel/process.h"
27 
28 namespace Ultima {
29 namespace Ultima8 {
30 
31 class Item;
32 class Actor;
33 
34 class GravityProcess : public Process {
35 public:
36 	GravityProcess();
37 	GravityProcess(Item *item, int gravity);
38 
39 	// add (xs,ys,zs) to current speed vector
40 	void move(int xs, int ys, int zs);
41 	void setGravity(int gravity);
42 
43 	void init();
44 
45 	ENABLE_RUNTIME_CLASSTYPE()
46 
47 	void run() override;
48 	void terminate() override;
49 
50 	void dumpInfo() const override;
51 
52 	bool loadData(Common::ReadStream *rs, uint32 version);
53 	void saveData(Common::WriteStream *ws) override;
54 
55 protected:
56 	void fallStopped();
57 
58 	void actorFallStoppedU8(Actor *actor, int height);
59 	void actorFallStoppedCru(Actor *actor, int height);
60 
61 	int _gravity;
62 	int _xSpeed, _ySpeed, _zSpeed;
63 };
64 
65 } // End of namespace Ultima8
66 } // End of namespace Ultima
67 
68 #endif
69