-rw-r--r-- | noncore/games/snake/snake.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/noncore/games/snake/snake.cpp b/noncore/games/snake/snake.cpp new file mode 100644 index 0000000..9f19841 --- a/dev/null +++ b/noncore/games/snake/snake.cpp | |||
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1 | /********************************************************************** | ||
2 | ** Copyright (C) 2000 Trolltech AS. All rights reserved. | ||
3 | ** | ||
4 | ** This file is part of Qtopia Environment. | ||
5 | ** | ||
6 | ** This file may be distributed and/or modified under the terms of the | ||
7 | ** GNU General Public License version 2 as published by the Free Software | ||
8 | ** Foundation and appearing in the file LICENSE.GPL included in the | ||
9 | ** packaging of this file. | ||
10 | ** | ||
11 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE | ||
12 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | ||
13 | ** | ||
14 | ** See http://www.trolltech.com/gpl/ for GPL licensing information. | ||
15 | ** | ||
16 | ** Contact info@trolltech.com if any conditions of this licensing are | ||
17 | ** not clear to you. | ||
18 | ** | ||
19 | **********************************************************************/ | ||
20 | |||
21 | #include "snake.h" | ||
22 | #include "target.h" | ||
23 | #include "codes.h" | ||
24 | |||
25 | #include <qpe/resource.h> | ||
26 | |||
27 | #include <qregexp.h> | ||
28 | |||
29 | static int Piecekey[4][4] = { {6, 0, 4, 3 }, {0, 6, 2, 1 }, { 1, 3, 5, 0 }, {2, 4, 0, 5 } }; | ||
30 | |||
31 | Snake::Snake(QCanvas* c) | ||
32 | { | ||
33 | canvas = c; | ||
34 | score = 0; | ||
35 | snakelist.setAutoDelete(true); | ||
36 | autoMoveTimer = new QTimer(this); | ||
37 | connect( autoMoveTimer, SIGNAL(timeout()), this, SLOT(moveSnake()) ); | ||
38 | createSnake(); | ||
39 | } | ||
40 | |||
41 | void Snake::createSnake() | ||
42 | { | ||
43 | snakeparts = new QCanvasPixmapArray(); | ||
44 | QString s0 = Resource::findPixmap("snake/s0001"); | ||
45 | s0.replace(QRegExp("0001"),"%1"); | ||
46 | snakeparts->readPixmaps(s0, 15); | ||
47 | |||
48 | grow = 0; | ||
49 | last = Key_Right; | ||
50 | |||
51 | QCanvasSprite* head = new QCanvasSprite(snakeparts, canvas ); | ||
52 | head->setFrame(7); | ||
53 | snakelist.insert(0, head); | ||
54 | head->show(); | ||
55 | head->move(34, 16); | ||
56 | |||
57 | QCanvasSprite* body = new QCanvasSprite(snakeparts, canvas ); | ||
58 | body->setFrame(6); | ||
59 | snakelist.append( body ); | ||
60 | body->show(); | ||
61 | body->move(18, 16); | ||
62 | |||
63 | QCanvasSprite* end = new QCanvasSprite(snakeparts, canvas ); | ||
64 | end->setFrame(11); | ||
65 | snakelist.append( end ); | ||
66 | end->show(); | ||
67 | end->move(2, 16); | ||
68 | |||
69 | currentdir = right; | ||
70 | speed = 250; | ||
71 | autoMoveTimer->start(speed); | ||
72 | moveSnake(); | ||
73 | } | ||
74 | |||
75 | void Snake::increaseSpeed() | ||
76 | { | ||
77 | if (speed > 150) | ||
78 | speed = speed - 5; | ||
79 | autoMoveTimer->start(speed); | ||
80 | } | ||
81 | |||
82 | void Snake::go(int newkey) | ||
83 | { | ||
84 | // check key is a direction | ||
85 | if (!( (newkey == Key_Up) || (newkey == Key_Left) || | ||
86 | (newkey == Key_Right) || (newkey == Key_Down) )) | ||
87 | return; | ||
88 | // check move is possible | ||
89 | if ( ((currentdir == left) && ((newkey == Key_Right) || (newkey == Key_Left)) ) || | ||
90 | ((currentdir == right) && ((newkey == Key_Left) || (newkey == Key_Right)) ) || | ||
91 | ((currentdir == up) && ((newkey == Key_Down) || (newkey == Key_Up)) ) || | ||
92 | ((currentdir == down) && ((newkey == Key_Up) || (newkey == Key_Down)) ) ) | ||
93 | return; | ||
94 | else { | ||
95 | Snake::changeHead(newkey); | ||
96 | Snake::moveSnake(); | ||
97 | } | ||
98 | } | ||
99 | |||
100 | void Snake::move(Direction dir) | ||
101 | { | ||
102 | autoMoveTimer->start(speed); | ||
103 | int x = 0; | ||
104 | int y = 0; | ||
105 | newdir = dir; | ||
106 | switch (dir) { | ||
107 | case right: x = 16; break; | ||
108 | case left: x = -16; break; | ||
109 | case down: y = 16; break; | ||
110 | case up: y = -16; break; | ||
111 | } | ||
112 | int index = lookUpPiece(currentdir, newdir); | ||
113 | QCanvasSprite* sprite = new QCanvasSprite(snakeparts, canvas ); | ||
114 | sprite->setFrame(index); | ||
115 | snakelist.insert(1, sprite); | ||
116 | sprite->move(snakelist.first()->x(), snakelist.first()->y() ); | ||
117 | |||
118 | snakelist.first()->moveBy(x, y); | ||
119 | if (grow <= 0) | ||
120 | changeTail(); | ||
121 | else | ||
122 | grow--; | ||
123 | sprite->show(); | ||
124 | |||
125 | currentdir = dir; | ||
126 | } | ||
127 | |||
128 | void Snake::changeTail() | ||
129 | { | ||
130 | snakelist.removeLast(); | ||
131 | |||
132 | double lastx = snakelist.last()->x(); | ||
133 | double prevx = snakelist.prev()->x(); | ||
134 | int index = 0; | ||
135 | |||
136 | if ( prevx == lastx ) { //vertical | ||
137 | if ( snakelist.prev()->y() > snakelist.last()->y() ) | ||
138 | index = 13; | ||
139 | else | ||
140 | index = 14; | ||
141 | } else { //horizontal | ||
142 | if (snakelist.prev()->x() > snakelist.last()->x() ) | ||
143 | index = 11; | ||
144 | else | ||
145 | index = 12; | ||
146 | } | ||
147 | |||
148 | snakelist.last()->setFrame(index); | ||
149 | } | ||
150 | |||
151 | void Snake::changeHead(int lastkey) | ||
152 | { | ||
153 | int index = 0; | ||
154 | last = lastkey; | ||
155 | |||
156 | switch (last) | ||
157 | { | ||
158 | case Key_Up: index = 10; break; | ||
159 | case Key_Left: index = 8; break; | ||
160 | case Key_Right: index = 7; break; | ||
161 | case Key_Down: index = 9; break; | ||
162 | } | ||
163 | |||
164 | if (index) { | ||
165 | snakelist.first()->setFrame(index); | ||
166 | } | ||
167 | } | ||
168 | |||
169 | // returns an integer corresponding to a particular type of snake piece | ||
170 | int Snake::lookUpPiece(Direction currentdir, Direction newdir) | ||
171 | { | ||
172 | return Piecekey[currentdir][newdir]; | ||
173 | } | ||
174 | |||
175 | void Snake::extendSnake() | ||
176 | { | ||
177 | grow++; | ||
178 | } | ||
179 | |||
180 | void Snake::moveSnake() | ||
181 | { | ||
182 | switch (last) | ||
183 | { | ||
184 | case Key_Up: move(up); break; | ||
185 | case Key_Left: move(left); break; | ||
186 | case Key_Right: move(right); break; | ||
187 | case Key_Down: move(down); break; | ||
188 | } | ||
189 | detectCrash(); | ||
190 | } | ||
191 | |||
192 | void Snake::detectCrash() | ||
193 | { | ||
194 | QCanvasSprite* head = snakelist.first(); | ||
195 | QCanvasItem* item; | ||
196 | QCanvasItemList l=head->collisions(FALSE); | ||
197 | for (QCanvasItemList::Iterator it=l.begin(); it!=l.end(); ++it) { | ||
198 | item = *it; | ||
199 | // check if snake hit target | ||
200 | if ( (item->rtti()== 1500 ) && (item->collidesWith(head)) ) { | ||
201 | Target* target = (Target*) item; | ||
202 | target->done(); | ||
203 | emit targethit(); | ||
204 | extendSnake(); | ||
205 | setScore(5); | ||
206 | return; | ||
207 | } | ||
208 | // check if snake hit obstacles | ||
209 | if ( (item->rtti()==1600) && (item->collidesWith(head)) ) { | ||
210 | emit dead(); | ||
211 | autoMoveTimer->stop(); | ||
212 | return; | ||
213 | } | ||
214 | } | ||
215 | //check if snake hit itself | ||
216 | for (uint i = 3; i < snakelist.count(); i++) { | ||
217 | if (head->collidesWith(snakelist.at(i)) ) { | ||
218 | emit dead(); | ||
219 | autoMoveTimer->stop(); | ||
220 | return; | ||
221 | } | ||
222 | } | ||
223 | //check if snake hit edge | ||
224 | if ( (head->x() > canvas->width()-5) || (head->y() > canvas->height()-10) | ||
225 | || (head->x() <2) || (head->y() <-5) ) { | ||
226 | emit dead(); | ||
227 | autoMoveTimer->stop(); | ||
228 | return; | ||
229 | } | ||
230 | } | ||
231 | |||
232 | void Snake::setScore(int amount) | ||
233 | { | ||
234 | score = score + amount; | ||
235 | emit scorechanged(); | ||
236 | } | ||
237 | |||
238 | int Snake::getScore() | ||
239 | { | ||
240 | return score; | ||
241 | } | ||
242 | |||
243 | Snake::~Snake() | ||
244 | { | ||
245 | autoMoveTimer->stop(); | ||
246 | } | ||