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 #include "ultima/ultima1/u1gfx/sprites.h"
24 #include "ultima/shared/early/ultima_early.h"
25 #include "ultima/shared/early/game.h"
26
27 namespace Ultima {
28 namespace Ultima1 {
29 namespace U1Gfx {
30
BEGIN_MESSAGE_MAP(Sprites,Shared::TreeItem)31 BEGIN_MESSAGE_MAP(Sprites, Shared::TreeItem)
32 ON_MESSAGE(FrameMsg)
33 END_MESSAGE_MAP()
34
35 #define ANIMATE_FRAME_DELAY 200
36
37 void Sprites::load(bool isOverworld) {
38 _isOverworld = isOverworld;
39
40 if (isOverworld)
41 Shared::Gfx::Sprites::load("t1ktiles.bin", 4);
42 else
43 Shared::Gfx::Sprites::load("t1ktown.bin", 4, 8, 8);
44 }
45
FrameMsg(CFrameMsg * msg)46 bool Sprites::FrameMsg(CFrameMsg *msg) {
47 if (!empty() && _isOverworld) {
48 animateWater();
49 }
50
51 ++_frameCtr;
52
53 return false;
54 }
55
animateWater()56 void Sprites::animateWater() {
57 byte lineBuffer[16];
58 Shared::Gfx::Sprite &sprite = (*this)[0];
59
60 Common::copy(sprite.getBasePtr(0, 15), sprite.getBasePtr(0, 16), lineBuffer);
61 Common::copy_backward(sprite.getBasePtr(0, 0), sprite.getBasePtr(0, 15), sprite.getBasePtr(0, 16));
62 Common::copy(lineBuffer, lineBuffer + 16, sprite.getBasePtr(0, 0));
63 }
64
operator [](uint idx)65 Shared::Gfx::Sprite &Sprites::operator[](uint idx) {
66 int offset = 2;
67 if ((_frameCtr % 6) == 0)
68 offset = 0;
69 else if ((_frameCtr % 3) == 0)
70 offset = 1;
71
72 if (!_isOverworld) {
73 // Don't do overworld tile animations within the cities and castles
74 return Shared::Gfx::Sprites::operator[](idx);
75 } else if (idx == 4 && offset != 2) {
76 // Castle flag waving
77 return Shared::Gfx::Sprites::operator[](4 + offset);
78 } else if (idx == 6) {
79 // City flag waving
80 return Shared::Gfx::Sprites::operator[](7 + ((_frameCtr & 3) ? 1 : 0));
81 } else {
82 if (idx >= 7 && idx < 50)
83 idx += 2;
84
85 if (idx == 14 || idx == 25) {
86 // Transports
87 return Shared::Gfx::Sprites::operator[](idx + (_frameCtr & 1));
88 } else if (idx >= 19 && idx <= 47) {
89 // Random monster animation
90 return Shared::Gfx::Sprites::operator[](idx + (g_vm->getRandomNumber(1, 100) & 1));
91 } else {
92 return Shared::Gfx::Sprites::operator[](idx);
93 }
94 }
95 }
96
97 } // End of namespace U1Gfx
98 } // End of namespace Ultima1
99 } // End of namespace Ultima
100