2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
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/>.
17 #ifndef HEADER_SUPERTUX_OBJECT_PARTICLESYSTEM_HPP
18 #define HEADER_SUPERTUX_OBJECT_PARTICLESYSTEM_HPP
22 #include "math/vector.hpp"
23 #include "supertux/game_object.hpp"
24 #include "util/reader.hpp"
31 * This is the base class for particle systems. It is responsible for storing a
32 * set of particles with each having an x- and y-coordinate the number of the
33 * layer where it should be drawn and a texture.
34 * The coordinate system used here is a virtual one. It would be a bad idea to
35 * populate whole levels with particles. So we're using a virtual rectangle
36 * here that is tiled onto the level when drawing. This rect.has the size
37 * (virtual_width, virtual_height). We're using modulo on the particle
38 * coordinates, so when a particle leaves left, it'll reenter at the right
41 * Classes that implement a particle system should subclass from this class,
42 * initialize particles in the constructor and move them in the simulate
45 class ParticleSystem : public GameObject
48 ParticleSystem(float max_particle_size = 60);
49 virtual ~ParticleSystem();
51 virtual void draw(DrawingContext& context);
69 float max_particle_size;
71 std::vector<Particle*> particles;
76 class SnowParticleSystem : public ParticleSystem
80 virtual ~SnowParticleSystem();
82 void parse(const Reader& lisp);
84 virtual void update(float elapsed_time);
86 std::string type() const
87 { return "SnowParticleSystem"; }
90 class SnowParticle : public Particle
106 Surface* snowimages[3];
109 SnowParticleSystem(const SnowParticleSystem&);
110 SnowParticleSystem& operator=(const SnowParticleSystem&);
113 class GhostParticleSystem : public ParticleSystem
116 GhostParticleSystem();
117 virtual ~GhostParticleSystem();
119 void parse(const Reader& lisp);
121 virtual void update(float elapsed_time);
123 std::string type() const
124 { return "GhostParticleSystem"; }
127 class GhostParticle : public Particle
140 GhostParticleSystem(const GhostParticleSystem&);
141 GhostParticleSystem& operator=(const GhostParticleSystem&);
144 class CloudParticleSystem : public ParticleSystem
147 CloudParticleSystem();
148 virtual ~CloudParticleSystem();
150 void parse(const Reader& lisp);
152 virtual void update(float elapsed_time);
154 std::string type() const
155 { return "CloudParticleSystem"; }
158 class CloudParticle : public Particle
171 CloudParticleSystem(const CloudParticleSystem&);
172 CloudParticleSystem& operator=(const CloudParticleSystem&);