4 // Copyright (C) 2004 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program 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
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 #ifndef SUPERTUX_PARTICLESYSTEM_H
20 #define SUPERTUX_PARTICLESYSTEM_H
24 #include "video/surface.h"
25 #include "game_object.h"
26 #include "serializable.h"
35 * This is the base class for particle systems. It is responsible for storing a
36 * set of particles with each having an x- and y-coordinate the number of the
37 * layer where it should be drawn and a texture.
38 * The coordinate system used here is a virtual one. It would be a bad idea to
39 * populate whole levels with particles. So we're using a virtual rectangle
40 * here that is tiled onto the level when drawing. This rect.has the size
41 * (virtual_width, virtual_height). We're using modulo on the particle
42 * coordinates, so when a particle leaves left, it'll reenter at the right
45 * Classes that implement a particle system should subclass from this class,
46 * initialize particles in the constructor and move them in the simulate
49 class ParticleSystem : public GameObject
53 virtual ~ParticleSystem();
55 virtual void draw(DrawingContext& context);
70 std::vector<Particle*> particles;
71 float virtual_width, virtual_height;
74 class SnowParticleSystem : public ParticleSystem, public Serializable
78 virtual ~SnowParticleSystem();
80 void parse(const lisp::Lisp& lisp);
81 void write(lisp::Writer& writer);
83 virtual void action(float elapsed_time);
85 std::string type() const
86 { return "SnowParticleSystem"; }
89 class SnowParticle : public Particle
95 Surface* snowimages[3];
98 class RainParticleSystem : public ParticleSystem, public Serializable
101 RainParticleSystem();
102 virtual ~RainParticleSystem();
104 void parse(const lisp::Lisp& lisp);
105 void write(lisp::Writer& writer);
107 virtual void action(float elapsed_time);
109 std::string type() const
110 { return "RainParticleSystem"; }
113 class RainParticle : public Particle
119 Surface* rainimages[2];
122 class CloudParticleSystem : public ParticleSystem, public Serializable
125 CloudParticleSystem();
126 virtual ~CloudParticleSystem();
128 void parse(const lisp::Lisp& lisp);
129 void write(lisp::Writer& writer);
131 virtual void action(float elapsed_time);
133 std::string type() const
134 { return "SnowParticleSystem"; }
137 class CloudParticle : public Particle