Android Open Source - DolphinOES Particle Emitter

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License

The source code is released under:

Apache License

Java Source Code

/*******************************************************************************
 * Copyright 2014 See AUTHORS file.// w w w .  ja  va2  s  . c o  m
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.sidereal.dolphinoes.behaviors.particlesystem;

import java.util.ArrayList;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.math.Vector2;
import com.sidereal.dolphinoes.architecture.DolphinOES;
import com.sidereal.dolphinoes.architecture.GameObject;
import com.sidereal.dolphinoes.architecture.core.GameData.ParticleSettings;
import com.sidereal.dolphinoes.architecture.core.GameData.Settings;
import com.sidereal.dolphinoes.util.IntWrapper;

/** Emmits particles with a specific lifetime, being able to change multiple
 * particle logic behind individual particles.
 * 
 * @author Claudiu */
public class ParticleEmitter
{

  // region fields

  public boolean mustRemove = false;
  public boolean renderFirst;

  public float gravity;
  public float gravityRandomRange;

  public float timeBetweenParticles;
  public float timeBetweenParticlesRemaining;

  public float particleTime;
  public float particleTimeRandomRange;

  public Vector2 trajectory;
  public Vector2 trajectoryRandomRange;

  public Vector2 offsetPositionRandomRange;
  public Vector2 offsetPosition;

  public float speed;
  public float speedRandomRange;

  public float timeAlive;
  public float defaultTimeAlive;

  public float particlesPerSecond;

  public ArrayList<ParticleSpriteLayout> particleSources;

  public GameObject owner;

  public boolean enabled;

  // endregion fields

  // region constructors

  public ParticleEmitter(ArrayList<ParticleSpriteLayout> spriteSources,
      GameObject object)
  {

    this.renderFirst = true;
    this.enabled = true;

    if (object != null)
    {
      this.owner = object;
    }

    this.offsetPosition = new Vector2();
    this.offsetPositionRandomRange = new Vector2();

    this.particleSources = spriteSources;

    for (int i = 0; i < spriteSources.size(); i++)
    {
      String sprite = spriteSources.get(i).sprite;
      DolphinOES.assets.load(sprite, Texture.class);
    }
    speed = 10;
    speedRandomRange = 0;

    gravity = 0;
    gravityRandomRange = 0;

    particleTime = 2;
    particleTimeRandomRange = 0;
    timeAlive = 10;

    trajectory = new Vector2();
    trajectoryRandomRange = new Vector2(2, 2);

    timeBetweenParticles = 0.5f;
    timeBetweenParticlesRemaining = 0;

  }

  public ParticleEmitter(ParticleEmitter emitter, GameObject obj)
  {

    this.mustRemove = emitter.mustRemove;
    this.renderFirst = emitter.renderFirst;

    this.gravity = emitter.gravity;
    this.gravityRandomRange = emitter.gravityRandomRange;

    this.timeBetweenParticles = emitter.timeBetweenParticles;
    this.timeBetweenParticlesRemaining = emitter.timeBetweenParticlesRemaining;

    this.trajectory = new Vector2(emitter.trajectory);
    this.trajectoryRandomRange = new Vector2(emitter.trajectoryRandomRange);

    this.offsetPositionRandomRange = new Vector2(
        emitter.offsetPositionRandomRange);
    this.offsetPosition = new Vector2(emitter.offsetPosition);
//    this.position = new Vector3(emitter.o);

    this.speed = emitter.speed;
    this.speedRandomRange = emitter.speedRandomRange;

    this.timeAlive = emitter.timeAlive;
    this.defaultTimeAlive = emitter.defaultTimeAlive;

    this.particleSources = new ArrayList<ParticleSpriteLayout>(
        emitter.particleSources);

    setOwner(obj);

    this.enabled = emitter.enabled;
  }

  // endregion constructors

  // region methods

  public void setTimeAlive(float timeAlive)
  {

    this.defaultTimeAlive = timeAlive;
    this.timeAlive = timeAlive;
  }

  public void restart()
  {

    this.timeAlive = this.defaultTimeAlive;
  }

  public void setOwner(GameObject object)
  {

    if (object != null)
    {
      this.owner = object;
    }
  }

  ParticleSpriteObject tempObject;

  public void run()
  {

    int particleSettings = ((IntWrapper) DolphinOES.data
        .getSettings(Settings.PARTICLE_SETTINGS)).get();

    if (ParticleSettings.toString(particleSettings).equals(
        Settings.PARTICLE_SETTINGS_NONE))
      return;

    if (timeAlive > 0)
    {
      timeAlive -= DolphinOES.time.getDeltaTime();
    }

    if ((timeAlive != -1 && timeAlive <= 0) || !enabled)
    {
      return;
    }

    timeBetweenParticlesRemaining -= DolphinOES.time.getDeltaTime();

    while (timeBetweenParticlesRemaining <= 0)
    {

      if (ParticleSettings.toString(particleSettings).equals(
          Settings.PARTICLE_SETTINGS_LOW))
      {
        timeBetweenParticlesRemaining += timeBetweenParticles * 5;
      } else if (ParticleSettings.toString(particleSettings).equals(
          Settings.PARTICLE_SETTINGS_MEDIUM))
      {
        timeBetweenParticlesRemaining += timeBetweenParticles * 2.5f;
      } else if (ParticleSettings.toString(particleSettings).equals(
          Settings.PARTICLE_SETTINGS_HIGH))
      {
        timeBetweenParticlesRemaining += timeBetweenParticles * 1.8f;
      } else if (ParticleSettings.toString(particleSettings).equals(
          Settings.PARTICLE_SETTINGS_MAX))
      {
        timeBetweenParticlesRemaining += timeBetweenParticles;
      }
      tempObject = new ParticleSpriteObject(owner.scene, this);
      tempObject.pos.setRelative(0, 0, 30);

    }

  }

  // endregion methods
}

Java Source Code List

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