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e68f847b PG |
1 | /* |
2 | * Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com. | |
3 | * | |
4 | * This program is free software: you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation, either version 3 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
2c18685d | 18 | #include "Screen.h" |
2c18685d PG |
19 | |
20 | #include "../Entities/PhysicsEntity.h" | |
094a13b8 | 21 | #include "../Entities/Ball.h" |
2c18685d | 22 | |
617dcc71 PG |
23 | |
24 | /// ***** Constructors/Destructors ***** | |
25 | ||
2c18685d PG |
26 | Screen::Screen() |
27 | { | |
28 | ||
29 | } | |
30 | Screen::~Screen() | |
31 | { | |
32 | ||
33 | } | |
34 | ||
617dcc71 PG |
35 | /// ***** Public Class Methods ***** |
36 | ||
2c18685d PG |
37 | Vector2 Screen::velocityDelta(const PhysicsEntity* e, float time_step) const |
38 | { | |
39 | const Vector2& pos = e->positionRaw(); | |
40 | const Vector2& velo = e->velocityRaw(); | |
41 | ||
42 | Vector2 acc(0,0); | |
43 | ||
094a13b8 PG |
44 | float radius = 0; |
45 | const Ball* b = dynamic_cast<const Ball*>(e); | |
46 | if( b != NULL ) | |
47 | radius = b->getRadius(); | |
48 | ||
49 | ||
50 | if(pos.y > 600-radius && velo.y > 0) | |
2c18685d | 51 | acc.y += velo.y * -2; |
2c18685d | 52 | |
094a13b8 | 53 | if(pos.y < 0+radius && velo.y < 0) |
2c18685d | 54 | acc.y += velo.y * -2; |
2c18685d | 55 | |
094a13b8 | 56 | if(pos.x > 800-radius && velo.x > 0) |
2c18685d | 57 | acc.x += velo.x * -2; |
2c18685d | 58 | |
094a13b8 | 59 | if(pos.x < 0+radius && velo.x < 0) |
2c18685d | 60 | acc.x += velo.x * -2; |
2c18685d PG |
61 | |
62 | return acc; | |
63 | } |