2 * Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
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.
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.
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/>.
20 #include <bear/Vector2.h>
24 /// ***** Constructors/Destructors *****
26 Particle::Particle(const Vector2& pos, bool canDie)
27 : Entity(pos), m_canDie(canDie)
31 Particle::Particle(const Vector2& pos, float lifeTime)
32 : Entity(pos), m_lifeTime(lifeTime)
41 /// ***** Public Class Methods *****
43 void Particle::update(float time_step)
50 m_lifeTime -= time_step;
51 m_isDead = m_lifeTime <= 0;
53 m_position += m_velocity * time_step;