1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* of the License, or(at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/plugins/ags_parallax/ags_parallax.h"
#include "ags/shared/core/platform.h"
#include "common/endian.h"
namespace AGS3 {
namespace Plugins {
namespace AGSParallax {
const unsigned int Magic = 0xCAFE0000;
const unsigned int Version = 2;
const unsigned int SaveMagic = Magic + Version;
const char *AGSParallax::AGS_GetPluginName() {
return "Parallax plugin recreation";
}
void AGSParallax::AGS_EngineStartup(IAGSEngine *engine) {
PluginBase::AGS_EngineStartup(engine);
if (_engine->version < 13)
_engine->AbortGame("Engine interface is too old, need newer version of AGS.");
SCRIPT_METHOD(pxDrawSprite, AGSParallax::pxDrawSprite);
SCRIPT_METHOD(pxDeleteSprite, AGSParallax::pxDeleteSprite);
_engine->RequestEventHook(AGSE_PREGUIDRAW);
_engine->RequestEventHook(AGSE_PRESCREENDRAW);
_engine->RequestEventHook(AGSE_ENTERROOM);
_engine->RequestEventHook(AGSE_SAVEGAME);
_engine->RequestEventHook(AGSE_RESTOREGAME);
}
int64 AGSParallax::AGS_EngineOnEvent(int event, NumberPtr data) {
if (event == AGSE_PREGUIDRAW) {
Draw(true);
} else if (event == AGSE_PRESCREENDRAW) {
// Get screen size and then draw
_engine->GetScreenDimensions(&_screenWidth, &_screenHeight, &_screenColorDepth);
Draw(false);
} else if (event == AGSE_ENTERROOM) {
// Reset all _sprites
clear();
} else if (event == AGSE_RESTOREGAME) {
Serializer s(_engine, data, true);
syncGame(s);
} else if (event == AGSE_SAVEGAME) {
Serializer s(_engine, data, false);
syncGame(s);
}
return 0;
}
void AGSParallax::clear() {
for (int i = 0; i < MAX_SPRITES; i++) {
_sprites[i] = Sprite();
_sprites[i].slot = -1;
}
_enabled = false;
}
void AGSParallax::syncGame(Serializer &s) {
int saveVersion = SaveMagic;
s.syncAsInt(saveVersion);
if ((uint)saveVersion != SaveMagic) {
_engine->AbortGame("ags_parallax: bad save.");
return;
}
for (int i = 0; i < MAX_SPRITES; ++i)
_sprites[i].syncGame(s);
s.syncAsBool(_enabled);
}
void AGSParallax::Draw(bool foreground) {
if (!_enabled)
return;
BITMAP *bmp;
int i;
int32 offsetX = 0;
int32 offsetY = 0;
_engine->ViewportToRoom(&offsetX, &offsetY);
for (i = 0; i < MAX_SPRITES; i++) {
if (_sprites[i].slot > -1) {
if (foreground) {
if (_sprites[i].speed > 0) {
bmp = _engine->GetSpriteGraphic(_sprites[i].slot);
if (bmp)
_engine->BlitBitmap(_sprites[i].x - offsetX - (_sprites[i].speed * offsetX / 100), _sprites[i].y, bmp, 1);
}
} else {
if (_sprites[i].speed <= 0) {
bmp = _engine->GetSpriteGraphic(_sprites[i].slot);
if (bmp)
_engine->BlitBitmap(_sprites[i].x - offsetX - (_sprites[i].speed * offsetX / 1000), _sprites[i].y, bmp, 1);
}
}
}
}
}
void AGSParallax::pxDrawSprite(ScriptMethodParams ¶ms) {
PARAMS5(int, id, int, x, int, y, int, slot, int, speed);
if ((id < 0) || (id >= MAX_SPRITES))
return;
if ((speed < -MAX_SPEED) || (speed > MAX_SPEED))
speed = 0;
_sprites[id].x = x;
_sprites[id].y = y;
_sprites[id].slot = slot;
_sprites[id].speed = speed;
_engine->RoomToViewport(&_sprites[id].x, &_sprites[id].y);
_enabled = true;
}
void AGSParallax::pxDeleteSprite(ScriptMethodParams ¶ms) {
PARAMS1(int, id);
if ((id < 0) || (id >= MAX_SPRITES))
return;
_sprites[id].slot = -1;
}
/*------------------------------------------------------------------*/
void Sprite::syncGame(Serializer &s) {
s.syncAsInt(x);
s.syncAsInt(y);
s.syncAsInt(slot);
s.syncAsInt(speed);
}
} // namespace AGSParallax
} // namespace Plugins
} // namespace AGS3
|
