-// $Id$
-//
// SuperTux
-// Copyright (C) 2004 Matthias Braun <matze@braunis.de>
+// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation; either version 2
-// of the License, or (at your option) any later version.
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-//
+//
// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#include <config.h>
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+#include "object/particlesystem.hpp"
-#include <iostream>
-#include <cmath>
+#include <math.h>
-#include "particlesystem.hpp"
+#include "math/random_generator.hpp"
+#include "supertux/globals.hpp"
#include "video/drawing_context.hpp"
-#include "lisp/parser.hpp"
-#include "lisp/lisp.hpp"
-#include "lisp/writer.hpp"
-#include "resources.hpp"
-#include "main.hpp"
-#include "object/camera.hpp"
-ParticleSystem::ParticleSystem()
+ParticleSystem::ParticleSystem(float max_particle_size_) :
+ max_particle_size(max_particle_size_),
+ z_pos(),
+ particles(),
+ virtual_width(),
+ virtual_height()
{
- virtual_width = SCREEN_WIDTH;
- virtual_height = SCREEN_HEIGHT;
- layer = LAYER_BACKGROUND1;
+ virtual_width = SCREEN_WIDTH + max_particle_size * 2;
+ virtual_height = SCREEN_HEIGHT + max_particle_size *2;
+ z_pos = LAYER_BACKGROUND1;
}
ParticleSystem::~ParticleSystem()
{
-
std::vector<Particle*>::iterator i;
- for(i = particles.begin(); i != particles.end(); ++i) {
- delete *i;
- }
+ std::vector<Particle*>::iterator i;
+ for(i = particles.begin(); i != particles.end(); ++i) {
+ delete *i;
+ }
}
void ParticleSystem::draw(DrawingContext& context)
float scrolly = context.get_translation().y;
context.push_transform();
- context.set_translation(Vector(0,0));
-
- std::vector<Particle*>::iterator i;
- for(i = particles.begin(); i != particles.end(); ++i) {
- Particle* particle = *i;
-
- // remap x,y coordinates onto screencoordinates
- Vector pos;
- pos.x = fmodf(particle->pos.x - scrollx, virtual_width);
- if(pos.x < 0) pos.x += virtual_width;
- pos.y = fmodf(particle->pos.y - scrolly, virtual_height);
- if(pos.y < 0) pos.y += virtual_height;
-
- if(pos.x > SCREEN_WIDTH) pos.x -= virtual_width;
- if(pos.y > SCREEN_HEIGHT) pos.y -= virtual_height;
- context.draw_surface(particle->texture, pos, layer);
- }
-
- context.pop_transform();
-}
-
-SnowParticleSystem::SnowParticleSystem()
-{
- snowimages[0] = new Surface("images/objects/particles/snow0.png");
- snowimages[1] = new Surface("images/objects/particles/snow1.png");
- snowimages[2] = new Surface("images/objects/particles/snow2.png");
-
- virtual_width = SCREEN_WIDTH * 2;
-
- // create some random snowflakes
- size_t snowflakecount = size_t(virtual_width/10.0);
- for(size_t i=0; i<snowflakecount; ++i) {
- SnowParticle* particle = new SnowParticle;
- particle->pos.x = fmodf(rand(), virtual_width);
- particle->pos.y = fmodf(rand(), SCREEN_HEIGHT);
- int snowsize = rand() % 3;
- particle->texture = snowimages[snowsize];
- do {
- particle->speed = snowsize*.2 + (float(rand()%10)*.4);
- } while(particle->speed < 1);
- particle->speed *= 10; // gravity
-
- particles.push_back(particle);
- }
-}
-
-void
-SnowParticleSystem::parse(const lisp::Lisp& reader)
-{
- reader.get("layer", layer);
-}
-
-void
-SnowParticleSystem::write(lisp::Writer& writer)
-{
- writer.start_list("particles-snow");
- writer.write_int("layer", layer);
- writer.end_list("particles-snow");
-}
-
-SnowParticleSystem::~SnowParticleSystem()
-{
- for(int i=0;i<3;++i)
- delete snowimages[i];
-}
-
-void SnowParticleSystem::update(float elapsed_time)
-{
- std::vector<Particle*>::iterator i;
- for(i = particles.begin(); i != particles.end(); ++i) {
- SnowParticle* particle = (SnowParticle*) *i;
- particle->pos.y += particle->speed * elapsed_time;
- if(particle->pos.y > SCREEN_HEIGHT + Sector::current()->camera->get_translation().y) {
- particle->pos.y = fmodf(particle->pos.y , virtual_height);
- particle->pos.x = rand() % int(virtual_width);
- }
- }
-}
-
-//FIXME: Sometimes both ghosts have the same image
-// Ghosts don't change their movement pattern - not random
-GhostParticleSystem::GhostParticleSystem()
-{
- ghosts[0] = new Surface("images/objects/particles/ghost0.png");
- ghosts[1] = new Surface("images/objects/particles/ghost1.png");
+ context.set_translation(Vector(max_particle_size,max_particle_size));
- virtual_width = SCREEN_WIDTH * 2;
+ std::vector<Particle*>::iterator i;
+ for(i = particles.begin(); i != particles.end(); ++i) {
+ Particle* particle = *i;
- // create two ghosts
- size_t ghostcount = 2;
- for(size_t i=0; i<ghostcount; ++i) {
- GhostParticle* particle = new GhostParticle;
- particle->pos.x = fmodf(rand(), virtual_width);
- particle->pos.y = fmodf(rand(), SCREEN_HEIGHT);
- int size = rand() % 2;
- particle->texture = ghosts[size];
- do {
- particle->speed = size*.2 + (float(rand()%10)*.4);
- } while(particle->speed < 1);
- particle->speed *= 50;
- particles.push_back(particle);
- }
-}
+ // remap x,y coordinates onto screencoordinates
+ Vector pos;
-void
-GhostParticleSystem::parse(const lisp::Lisp& reader)
-{
- reader.get("layer", layer);
-}
+ pos.x = fmodf(particle->pos.x - scrollx, virtual_width);
+ if(pos.x < 0) pos.x += virtual_width;
-void
-GhostParticleSystem::write(lisp::Writer& writer)
-{
- writer.start_list("particles-ghosts");
- writer.write_int("layer", layer);
- writer.end_list("particles-ghosts");
-}
+ pos.y = fmodf(particle->pos.y - scrolly, virtual_height);
+ if(pos.y < 0) pos.y += virtual_height;
-GhostParticleSystem::~GhostParticleSystem()
-{
- for(int i=0;i<2;++i)
- delete ghosts[i];
-}
-
-void GhostParticleSystem::update(float elapsed_time)
-{
- std::vector<Particle*>::iterator i;
- for(i = particles.begin(); i != particles.end(); ++i) {
- GhostParticle* particle = (GhostParticle*) *i;
- particle->pos.y -= particle->speed * elapsed_time;
- particle->pos.x -= particle->speed * elapsed_time;
- if(particle->pos.y > SCREEN_HEIGHT) {
- particle->pos.y = fmodf(particle->pos.y , virtual_height);
- particle->pos.x = rand() % int(virtual_width);
- }
- }
-}
-
-CloudParticleSystem::CloudParticleSystem()
-{
- cloudimage = new Surface("images/objects/particles/cloud.png");
+ //if(pos.x > virtual_width) pos.x -= virtual_width;
+ //if(pos.y > virtual_height) pos.y -= virtual_height;
- virtual_width = 2000.0;
+ context.draw_surface(particle->texture, pos, particle->angle, Color(1.0f, 1.0f, 1.0f), Blend(), z_pos);
+ }
- // create some random clouds
- for(size_t i=0; i<15; ++i) {
- CloudParticle* particle = new CloudParticle;
- particle->pos.x = rand() % int(virtual_width);
- particle->pos.y = rand() % int(virtual_height);
- particle->texture = cloudimage;
- particle->speed = -float(25 + rand() % 30);
-
- particles.push_back(particle);
- }
-}
-
-void
-CloudParticleSystem::parse(const lisp::Lisp& reader)
-{
- reader.get("layer", layer);
-}
-
-void
-CloudParticleSystem::write(lisp::Writer& writer)
-{
- writer.start_list("particles-clouds");
- writer.write_int("layer", layer);
- writer.end_list("particles-clouds");
-}
-
-CloudParticleSystem::~CloudParticleSystem()
-{
- delete cloudimage;
+ context.pop_transform();
}
-void CloudParticleSystem::update(float elapsed_time)
-{
- std::vector<Particle*>::iterator i;
- for(i = particles.begin(); i != particles.end(); ++i) {
- CloudParticle* particle = (CloudParticle*) *i;
- particle->pos.x += particle->speed * elapsed_time;
- }
-}
+/* EOF */
projects / supertux.git / blobdiff