1 | /* |
2 | * Copyright (C) 2007 Tomasz Boczkowski <tboczkowski@onet.pl> |
3 | * |
4 | * This file is part of the KDE project "KBounce" |
5 | * |
6 | * KBounce is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Library General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * KBounce is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Library General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Library General Public |
17 | * License along with KBounce; if not, write to the Free |
18 | * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 | * Boston, MA 02110-1301, USA. |
20 | */ |
21 | |
22 | #include "gameobject.h" |
23 | |
24 | KBounceVector KBounceVector::normal( const QRectF& rect1, const QRectF& rect2 ) |
25 | { |
26 | KBounceVector normal( 0, 0 ); |
27 | |
28 | if ( rect1.bottom() > rect2.top() && rect1.bottom() < rect2.bottom() ) |
29 | normal += KBounceVector( 0, -1 ); |
30 | if ( rect1.top() < rect2.bottom() && rect1.top() > rect2.top() ) |
31 | normal += KBounceVector( 0, 1 ); |
32 | if ( rect1.right() < rect2.right() && rect1.right() > rect2.left() ) |
33 | normal += KBounceVector( 1, 0 ); |
34 | if ( rect1.left() > rect2.left() && rect1.left() < rect2.right() ) |
35 | normal += KBounceVector( -1, 0 ); |
36 | |
37 | return normal; |
38 | } |
39 | |
40 | |