/*
* Copyright (c) 2013, Oskar Veerhoek
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those
* of the authors and should not be interpreted as representing official policies,
* either expressed or implied, of the FreeBSD Project.
*/
package episode_38;
import org.lwjgl.LWJGLException;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.util.vector.Vector3f;
import static org.lwjgl.opengl.GL11.*;
public class ParticleDemo2D {
private static ParticleEmitter particleEmitter = new ParticleEmitterBuilder()
.setGravity(new Vector3f(0, -0.002f, 0))
.setSpawningRate(50)
.setEnable3D(false)
.setParticleLifeTime(300)
.createParticleEmitter();
public static void main(String[] args) {
setUpDisplay();
setUpStates();
while (!Display.isCloseRequested()) {
input();
logic();
render();
refresh();
}
shutdown();
System.exit(0);
}
private static void setUpStates() {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glClearColor(0.2f, 0.2f, 0.2f, 1);
}
private static void setUpDisplay() {
try {
Display.setDisplayMode(new DisplayMode(640, 480));
Display.setTitle("Particle System");
Display.create();
} catch (LWJGLException e) {
e.printStackTrace();
Display.destroy();
System.exit(1);
}
}
private static void logic() {
particleEmitter.update();
}
private static void input() {
particleEmitter.setLocation(new Vector3f(Mouse.getX(), Mouse.getY(), 0));
}
private static void render() {
glClear(GL_COLOR_BUFFER_BIT);
particleEmitter.draw();
}
private static void refresh() {
Display.sync(60);
Display.update();
}
private static void shutdown() {
Display.destroy();
}
}