finished changes to deps directory building
[physics.git] / Entities / Particle.cpp
... / ...
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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
18#include "Particle.h"
19
20#include "../Vector2.h"
21
22
23/// ***** Constructors/Destructors *****
24
25Particle::Particle(const Vector2& pos, bool canDie)
26 : Entity(pos), canDie(canDie)
27{
28
29}
30Particle::Particle(const Vector2& pos, float lifeTime)
31 : Entity(pos), lifeTime(lifeTime)
32{
33
34}
35Particle::~Particle()
36{
37
38}
39
40/// ***** Public Class Methods *****
41
42void Particle::update(float time_step)
43{
44 if(isDead)
45 return;
46
47 if (canDie)
48 {
49 lifeTime -= time_step;
50 isDead = lifeTime <= 0;
51 }
52 position += velocity * time_step;
53}