Cocos2D-Android-1之源碼詳解：16.ParticleTest
package org.cocos2d.tests;
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import org.cocos2d.actions.UpdateCallback;
import org.cocos2d.actions.base.CCRepeatForever;
import org.cocos2d.actions.interval.CCIntervalAction;
import org.cocos2d.actions.interval.CCMoveBy;
import org.cocos2d.actions.interval.CCRotateBy;
import org.cocos2d.actions.interval.CCSequence;
import org.cocos2d.layers.CCColorLayer;
import org.cocos2d.layers.CCLayer;
import org.cocos2d.layers.CCScene;
import org.cocos2d.menus.CCMenu;
import org.cocos2d.menus.CCMenuItemFont;
import org.cocos2d.menus.CCMenuItemImage;
import org.cocos2d.menus.CCMenuItemToggle;
import org.cocos2d.nodes.CCDirector;
import org.cocos2d.nodes.CCLabel;
import org.cocos2d.nodes.CCLabelAtlas;
import org.cocos2d.nodes.CCParallaxNode;
import org.cocos2d.nodes.CCSprite;
import org.cocos2d.nodes.CCTextureCache;
import org.cocos2d.opengl.CCGLSurfaceView;
import org.cocos2d.opengl.CCTextureAtlas;
import org.cocos2d.particlesystem.CCParticleExplosion;
import org.cocos2d.particlesystem.CCParticleFire;
import org.cocos2d.particlesystem.CCParticleFireworks;
import org.cocos2d.particlesystem.CCParticleFlower;
import org.cocos2d.particlesystem.CCParticleGalaxy;
import org.cocos2d.particlesystem.CCParticleMeteor;
import org.cocos2d.particlesystem.CCParticleRain;
import org.cocos2d.particlesystem.CCParticleSmoke;
import org.cocos2d.particlesystem.CCParticleSnow;
import org.cocos2d.particlesystem.CCParticleSpiral;
import org.cocos2d.particlesystem.CCParticleSun;
import org.cocos2d.particlesystem.CCParticleSystem;
import org.cocos2d.particlesystem.CCPointParticleSystem;
import org.cocos2d.particlesystem.CCQuadParticleSystem;
import org.cocos2d.types.CGPoint;
import org.cocos2d.types.CGRect;
import org.cocos2d.types.CGSize;
import org.cocos2d.types.ccColor3B;
import org.cocos2d.types.ccColor4B;
import org.cocos2d.types.ccColor4F;
import org.cocos2d.utils.javolution.MathLib;
import org.cocos2d.utils.javolution.TextBuilder;
import android.app.Activity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.Window;
import android.view.WindowManager;
public class ParticleTest extends Activity {
// private static final String LOG_TAG = AtlasSpriteTest.class.getSimpleName();
private CCGLSurfaceView mGLSurfaceView;//建立view
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);//沒標(biāo)題..
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);//全屏
getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);//不黑
mGLSurfaceView = new CCGLSurfaceView(this);//建立新的view
setContentView(mGLSurfaceView);//設(shè)置view
// attach the OpenGL view to a window
CCDirector.sharedDirector().attachInView(mGLSurfaceView);//把所有的圖像附加到view上
// set landscape mode
CCDirector.sharedDirector().setLandscape(false);//橫屏
// show FPS
CCDirector.sharedDirector().setDisplayFPS(true);//fps
// frames per second
CCDirector.sharedDirector().setAnimationInterval(1.0f / 60);//每1/60秒運(yùn)行一次
CCScene scene = CCScene.node();//生成場景節(jié)點(diǎn)
scene.addChild(nextAction());//場景布置
// Make the Scene active
CCDirector.sharedDirector().runWithScene(scene);//執(zhí)行
}
@Override
public void onStart() {
super.onStart();
}
@Override
public void onPause() {
super.onPause();
CCDirector.sharedDirector().onPause();
}
@Override
public void onResume() {
super.onResume();
CCDirector.sharedDirector().onResume();
}
@Override
public void onDestroy() {
super.onDestroy();
CCDirector.sharedDirector().end();
//CCTextureCache.sharedTextureCache().removeAllTextures();
}
static int sceneIdx = -1;
static Class transitions[] = {//類集合
DemoFlower.class,
DemoGalaxy.class,
DemoFirework.class,
DemoSpiral.class,
DemoSun.class,
DemoMeteor.class,
DemoFire.class,
DemoSmoke.class,
DemoExplosion.class,
DemoSnow.class,
DemoRain.class,
DemoBigFlower.class,
DemoRotFlower.class,
DemoModernArt.class,
DemoRing.class,
ParallaxParticle.class,
/* we can't work on plist files now
ParticleDesigner1.class,
ParticleDesigner2.class,
ParticleDesigner3.class,
ParticleDesigner4.class,
ParticleDesigner5.class,
ParticleDesigner6.class,
ParticleDesigner7.class,
ParticleDesigner8.class,
ParticleDesigner9.class,
ParticleDesigner10.class,
ParticleDesigner11.class, */
RadiusMode1.class,
RadiusMode2.class,
// Issue704.class,
// Issue872.class,
// Issue870.class,
};
static CCLayer nextAction() {//動(dòng)作下一步
sceneIdx++;
sceneIdx = sceneIdx % transitions.length;
return restartAction();
}
static CCLayer backAction() {//返回動(dòng)作
sceneIdx--;
if (sceneIdx < 0)
sceneIdx += transitions.length;
return restartAction();
}
static CCLayer restartAction() {//重置
try {
Class c = transitions[sceneIdx];
return (CCLayer) c.newInstance();
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
static abstract class ParticleDemo extends CCColorLayer implements UpdateCallback {
CCTextureAtlas atlas;//文字圖集
static final int kTagLabelAtlas = 1;
CCParticleSystem emitter;//創(chuàng)建離子系統(tǒng)
CCSprite background;//創(chuàng)建背景精靈
public ParticleDemo() {
super(new ccColor4B(127,127,127,255));//顏色背景
this.setIsTouchEnabled(true);//可以點(diǎn)擊
CGSize s = CCDirector.sharedDirector().winSize();//得到大小
CCLabel label = CCLabel.makeLabel(title(), "DroidSans", 18);//標(biāo)記
label.setPosition(CGPoint.make(s.width / 2, s.height - 50));//設(shè)置位置
addChild(label, 100);//添加子類
String subtitle = subtitle();//得到字符
if( subtitle != null) {
CCLabel l = CCLabel.makeLabel(subtitle, "DroidSerif", 16);//創(chuàng)建標(biāo)簽
addChild(l, 100);//添加子類
l.setPosition(CGPoint.ccp(s.width/2, s.height-80));//設(shè)置位置
}
//創(chuàng)建下列3個(gè)按鈕
CCMenuItemImage item1 = CCMenuItemImage.item("b1.png", "b2.png", this, "backCallback");
CCMenuItemImage item2 = CCMenuItemImage.item("r1.png", "r2.png", this, "restartCallback");
CCMenuItemImage item3 = CCMenuItemImage.item("f1.png", "f2.png", this, "nextCallback");
//添加一個(gè)標(biāo)簽按鈕，這個(gè)標(biāo)簽每次點(diǎn)擊會(huì)切換字符串
CCMenuItemToggle item4 = CCMenuItemToggle.item(this,"toggleCallback",
CCMenuItemFont.item("Free Movement"),//散開的效果
CCMenuItemFont.item("Grouped Movement"));//圓效果
//把按鈕添加進(jìn)去
CCMenu menu = CCMenu.menu(item1, item2, item3, item4);//添加進(jìn)菜單
menu.setPosition(CGPoint.make(0, 0));//設(shè)置位置
item1.setPosition(CGPoint.make(s.width / 2 - 100, 30));
item2.setPosition(CGPoint.make(s.width / 2, 30));
item3.setPosition(CGPoint.make(s.width / 2 + 100, 30));
item4.setPosition(CGPoint.ccp(0, 100));
item4.setAnchorPoint(CGPoint.ccp(0,0));//設(shè)置錨點(diǎn)
addChild(menu, 100);//菜單頂置
CCLabelAtlas labelAtlas = CCLabelAtlas.label("0000", "fps_p_w_picpaths.png", 16, 24, '.');//標(biāo)簽圖
addChild(labelAtlas, 100, kTagLabelAtlas);//添加子類
labelAtlas.setPosition(CGPoint.make(s.width-66, 50));//設(shè)置頂點(diǎn)
// moving background
background = CCSprite.sprite("background3.png");//創(chuàng)建精靈
addChild(background, 5);//添加子類
background.setPosition(CGPoint.make(s.width/2, s.height-180));
//設(shè)置位置
CCIntervalAction move = CCMoveBy.action(4, CGPoint.ccp(300, 0));//移動(dòng)
CCIntervalAction move_back = move.reverse();//反移動(dòng)
CCIntervalAction seq = CCSequence.actions(move, move_back);//創(chuàng)建連
background.runAction(CCRepeatForever.action(seq));//執(zhí)行
this.scheduleUpdate();//設(shè)置0優(yōu)先等級的更新
}
@Override
public boolean ccTouchesBegan(MotionEvent e){//點(diǎn)擊事件開始
// claim the touch
return true;
}
@Override
public boolean ccTouchesMoved(MotionEvent e) {//點(diǎn)擊移動(dòng)
return true;
}
@Override
public boolean ccTouchesEnded(MotionEvent e) {//點(diǎn)擊結(jié)束
CGPoint location = CGPoint.ccp(e.getX(), e.getY());//定義點(diǎn)
CGPoint convertedLocation = CCDirector.sharedDirector().convertToGL(location);
//轉(zhuǎn)換坐標(biāo)
CGPoint pos = CGPoint.zero();//得到原點(diǎn)0.0
if( background != null)//如果背景層不為空
pos = background.convertToWorldSpace(0, 0);//轉(zhuǎn)換為世界坐標(biāo)
emitter.setPosition(CGPoint.ccpSub(convertedLocation, pos));//做差
return true;
}
private TextBuilder particleCountString = new TextBuilder();//字符串
// String.format("%4d", emitter.getParticleCount())//這是要格式化成4位
private TextBuilder getParticleCountString(int c) {//得到字符串的方法
int len = MathLib.digitLength(c);//得到c的長度
int zeros = 4 - len;//用4-c
while (zeros-- > 0) {//一直循環(huán)-1，只要大于0就繼續(xù)做
particleCountString.append('0');//補(bǔ)0
}
particleCountString.append(c);//把c添加進(jìn)去
return particleCountString;//返回字符
}
public void update(float dt) {//重寫每幀的執(zhí)行
CCLabelAtlas atlas = (CCLabelAtlas) getChildByTag(kTagLabelAtlas);//得到標(biāo)簽
particleCountString.reset();//清楚掉字符
// String str = String.format("%4d", emitter.getParticleCount());
atlas.setString(getParticleCountString(emitter.getParticleCount()));//設(shè)置標(biāo)簽字符
}
public void toggleCallback(Object sender) {//由剛才那個(gè)點(diǎn)擊得到這個(gè)事件。每次看看自己的參數(shù)設(shè)置，如果是grop的就設(shè)為free的，否則就射為group的
if( emitter.getPositionType() == CCParticleSystem.kCCPositionTypeGrouped )
emitter.setPositionType(CCParticleSystem.kCCPositionTypeFree);
else
emitter.setPositionType(CCParticleSystem.kCCPositionTypeGrouped);
}
public void restartCallback(Object sender) {//重置
// Scene s = Scene.node();
// s.addChild(restartAction());
// Director.sharedDirector().replaceScene(s);
emitter.resetSystem();
}
public void setEmitterPosition() {//設(shè)置點(diǎn)
if( CGPoint.equalToPoint( emitter.getCenterOfGravity(), CGPoint.zero() ) ) //如果相等
emitter.setPosition(CGPoint.make(200, 70));//設(shè)定頂點(diǎn)
}
public void nextCallback(Object sender) {//2個(gè)切換事件
CCScene s = CCScene.node();
s.addChild(nextAction());
CCDirector.sharedDirector().replaceScene(s);
}
public void backCallback(Object sender) {
CCScene s = CCScene.node();
s.addChild(backAction());
CCDirector.sharedDirector().replaceScene(s);
}
public String title() {//得到字符串
return "No title";
}
public String subtitle() {
return "Tap the screen";
}
}
static class DemoFire extends ParticleDemo {//火
public void onEnter() {
super.onEnter();
emitter = CCParticleFire.node();
background.addChild(emitter, 10);//添加系統(tǒng)
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));
//在緩存中添加圖片火，并把這作為圖案，作為離子的圖案
CGPoint p = emitter.getPosition();//得到頂點(diǎn)
emitter.setPosition(CGPoint.ccp(p.x, 100));//設(shè)置頂點(diǎn)讓y=100
setEmitterPosition();//設(shè)置位置
}
public String title() {
return "ParticleFire";
}
}
static class DemoExplosion extends ParticleDemo {//爆炸
static final int kTagLabelAtlas = 1;
static final int kTagEmitter = 2;
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleExplosion.node();//新建爆炸節(jié)點(diǎn)
addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars_grayscale.png"));//設(shè)置圖案
emitter.setAutoRemoveOnFinish(true);//完成后自動(dòng)消失
setEmitterPosition();
}
@Override
public String title() {
return "ParticleExplosion";
}
}
static class DemoFirework extends ParticleDemo {//×××，也是一種爆炸
static final int kTagLabelAtlas = 1;
static final int kTagEmitter = 2;
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleFireworks.node();
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars.png"));//給個(gè)圖片
emitter.setBlendAdditive(true);//設(shè)置加亮模式
setEmitterPosition();//設(shè)置點(diǎn)
}
@Override
public String title() {
return "ParticleFireworks";
}
}
static class DemoSun extends ParticleDemo {//太陽效果
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleSun.node();//生成一個(gè)太陽節(jié)點(diǎn)
background.addChild(emitter, 10);//添加子類
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));//設(shè)置圖像
setEmitterPosition();
}
@Override
public String title()
{
return "ParticleSun";
}
}
static class DemoGalaxy extends ParticleDemo {//銀河系
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleGalaxy.node();//生成銀河系節(jié)點(diǎn)
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));//火圖片
setEmitterPosition();
}
@Override
public String title() {
return "ParticleGalaxy";
}
}
static class DemoFlower extends ParticleDemo {//花
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleFlower.node();//花的節(jié)點(diǎn)
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars_grayscale.png"));
//設(shè)置基本粒子圖片
setEmitterPosition();
}
@Override
public String title() {
return "ParticleFlower";
}
}
static class DemoBigFlower extends ParticleDemo {//大花
@Override
public void onEnter() {
super.onEnter();
emitter = new CCQuadParticleSystem(50);//粒子系統(tǒng)50個(gè)粒子
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars_grayscale.png"));
//設(shè)置圖片
// duration
emitter.setDuration(CCParticleSystem.kCCParticleDurationInfinity);//粒子發(fā)射器設(shè)置永遠(yuǎn)
// Gravity Mode: gravity
emitter.setGravity(CGPoint.zero());//設(shè)置重力點(diǎn)在0.0
// Set "Gravity" mode (default one)
emitter.setEmitterMode(CCParticleSystem.kCCParticleModeGravity);//設(shè)置為重力模式，還有一種叫半徑模式
// Gravity Mode: speed of particles
emitter.setSpeed(160);//速度
emitter.setSpeedVar(20);//加速度
// Gravity Mode: radial
emitter.setRadialAccel(-120);//設(shè)置切向速度
emitter.setRadialAccelVar(0);//切向加速度
// Gravity Mode: tagential
emitter.setTangentialAccel(30);//向心速度
emitter.setTangentialAccelVar(0);//向心加速度
// angle
emitter.setAngle(90);//設(shè)置角度
emitter.setAngleVar(360);//角度加速度
// emitter position
emitter.setPosition(CGPoint.ccp(160,240));//設(shè)置初始位置
emitter.setPosVar(CGPoint.zero());//設(shè)置位置變化率
// life of particles
emitter.setLife(4);//存活時(shí)期
emitter.setLifeVar(1);//時(shí)間變化率
// spin of particles
emitter.setStartSpin(0);//開始自轉(zhuǎn)
emitter.setStartSpinVar(0);//開始轉(zhuǎn)速度
emitter.setEndSpin(0);//結(jié)束自轉(zhuǎn)
emitter.setEndSpinVar(0);//結(jié)束轉(zhuǎn)速度
// color of particles
ccColor4F startColor = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);
emitter.setStartColor(startColor);//設(shè)置初始顏色
ccColor4F startColorVar = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);
emitter.setStartColorVar(startColorVar);//設(shè)置顏色變化率
ccColor4F endColor = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);
emitter.setEndColor(endColor);//設(shè)置結(jié)束顏色
ccColor4F endColorVar = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);
emitter.setEndColorVar(endColorVar);//設(shè)置結(jié)束顏色變化率
// size, in pixels
emitter.setStartSize(80.0f);//設(shè)置初始離子大小
emitter.setStartSizeVar(40.0f);//設(shè)置初始離子變化率
emitter.setEndSize(CCParticleSystem.kCCParticleStartSizeEqualToEndSize);//等同于初始大小
// emits per second
emitter.setEmissionRate( emitter.getTotalParticles()/emitter.getLife());//設(shè)置每秒產(chǎn)生離子率
// additive
emitter.setBlendAdditive(true);//設(shè)置在屏幕中間
setEmitterPosition();
}
@Override
public String title() {
return "Big Particles";
}
}
static class DemoRotFlower extends ParticleDemo {//花
@Override
public void onEnter() {
super.onEnter();
emitter = new CCQuadParticleSystem(300);//300個(gè)粒子的自定義粒子系統(tǒng)
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars2_grayscale.png"));
//設(shè)置紋理
// duration
emitter.setDuration(CCParticleSystem.kCCParticleDurationInfinity);//永久存活
// Set "Gravity" mode (default one)
emitter.setEmitterMode(CCParticleSystem.kCCParticleModeGravity);//重力模式
// Gravity mode: gravity
emitter.setGravity(CGPoint.zero());//設(shè)置重力點(diǎn)
// Gravity mode: speed of particles
emitter.setSpeed(160);//設(shè)置粒子速度
emitter.setSpeedVar(20);//設(shè)置加速度
// Gravity mode: radial
emitter.setRadialAccel(-120);//徑向速度
emitter.setRadialAccelVar(0);//徑向加速度
// Gravity mode: tagential
emitter.setTangentialAccel(30);//切向速度
emitter.setTangentialAccelVar(0);//切向加速度
// emitter position
emitter.setPosition(CGPoint.ccp(160,240));//出發(fā)點(diǎn)
emitter.setPosVar(CGPoint.zero());//點(diǎn)變化速度
// angle
emitter.setAngle(90);//角度
emitter.setAngleVar(360);//角加速度
// life of particles
emitter.setLife(3);//生命周期
emitter.setLifeVar(1);//衰變速度
// spin of particles
emitter.setStartSpin(0);//粒子自己開始角度
emitter.setStartSpinVar(0);//粒子自己旋轉(zhuǎn)的速度，0就是一開始速度為0
emitter.setEndSpin(0);//粒子自己結(jié)束時(shí)的角度
emitter.setEndSpinVar(2000);//單個(gè)粒子自己旋轉(zhuǎn)的速度，2000就轉(zhuǎn)的非?？炝?/p>
// color of particles
ccColor4F startColor = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);//開始的顏色
emitter.setStartColor(startColor);//設(shè)置開始的顏色
ccColor4F startColorVar = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);//開始顏色變化速度
emitter.setStartColorVar(startColorVar);
ccColor4F endColor = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);//結(jié)束顏色
emitter.setEndColor(endColor);
ccColor4F endColorVar = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);//結(jié)束時(shí)的速度
emitter.setEndColorVar(endColorVar);
// size, in pixels
emitter.setStartSize(30.0f);//開始大小
emitter.setStartSizeVar(00.0f);//開始速度
emitter.setEndSize(CCParticleSystem.kCCParticleStartSizeEqualToEndSize);//結(jié)束大小設(shè)置的和一開始一樣
// emits per second
emitter.setEmissionRate(emitter.getTotalParticles()/emitter.getLife());//每秒產(chǎn)生粒子的效率，得到全部產(chǎn)生的粒子/生命周期=粒子的產(chǎn)生效率
// additive
emitter.setBlendAdditive(false);//設(shè)置在屏幕中間
setEmitterPosition();
}
@Override
public String title() {
return "Spinning Particles";
}
}
static class DemoMeteor extends ParticleDemo {
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleMeteor.node();//粒子流星
background.addChild(emitter, 10);//背景添加粒子流星
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));
//給粒子添加圖案
setEmitterPosition();
}
@Override
public String title() {
return "ParticleMeteor";
}
}
static class DemoSpiral extends ParticleDemo {
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleSpiral.node();//顆粒螺旋
background.addChild(emitter, 10);//添加螺旋
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));
//設(shè)置畫面
setEmitterPosition();
}
@Override
public String title() {
return "ParticleSpiral";
}
}
static class DemoSmoke extends ParticleDemo {
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleSmoke.node();//粒子煙霧
background.addChild(emitter, 10);
CGPoint p = emitter.getPosition();
emitter.setPosition(CGPoint.ccp( p.x, 100));//設(shè)置位置
setEmitterPosition();
}
@Override
public String title() {
return "ParticleSmoke";
}
}
static class DemoSnow extends ParticleDemo {
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleSnow.node();//粒子下雪
background.addChild(emitter, 10);
CGPoint p = emitter.getPosition();
emitter.setPosition(CGPoint.ccp( p.x, p.y-110));
emitter.setLife(3);//生命周期3
emitter.setLifeVar(1);//生命速度1
// gravity
emitter.setGravity(CGPoint.ccp(0,-10));
// speed of particles
emitter.setSpeed(130);//設(shè)置速度
emitter.setSpeedVar(30);//加速度
ccColor4F startColor = emitter.getStartColor();//得到開始顏色
startColor.r = 0.9f;
startColor.g = 0.9f;
startColor.b = 0.9f;
emitter.setStartColor(startColor);//設(shè)置開始顏色，主要為了改透明度
ccColor4F startColorVar = emitter.getStartColorVar();//開始變換速度
startColorVar.b = 0.1f;
emitter.setStartColorVar(startColorVar);//只改變藍(lán)色的變化速度
emitter.setEmissionRate(emitter.getTotalParticles()/emitter.getLife());//粒子產(chǎn)生速度
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("snow.png"));
//設(shè)置紋理
setEmitterPosition();
}
@Override
public String title() {
return "ParticleSnow";
}
}
static class DemoRain extends ParticleDemo {//下雨
@Override
public void onEnter(){
super.onEnter();
emitter = CCParticleRain.node();//下雨粒子效果
background.addChild(emitter, 10);
CGPoint p = emitter.getPosition();//設(shè)置位置
emitter.setPosition(CGPoint.ccp( p.x, p.y-100));
emitter.setLife(4);//設(shè)置生命周期
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("fire.png"));
//設(shè)置紋理
setEmitterPosition();//設(shè)置位置
}
@Override
public String title() {
return "ParticleRain";
}
}
static class DemoModernArt extends ParticleDemo {
@Override
public void onEnter()
{
super.onEnter();
emitter = new CCPointParticleSystem(1000);//粒子效果1000個(gè)
background.addChild(emitter, 10);//添加子類
CGSize s = CCDirector.sharedDirector().winSize();//得到大小
// duration
emitter.setDuration(CCParticleSystem.kCCParticleDurationInfinity);//生命周期永久
// Gravity mode
emitter.setEmitterMode(CCParticleSystem.kCCParticleModeGravity);//重力模式
// Gravity mode: gravity
emitter.setGravity(CGPoint.ccp(0,0));//重心
// Gravity mode: radial
emitter.setRadialAccel(70);//以下幾個(gè)方法不做贅述
emitter.setRadialAccelVar(10);
// Gravity mode: tagential
emitter.setTangentialAccel(80);
emitter.setTangentialAccelVar(0);
// Gravity mode: speed of particles
emitter.setSpeed(50);
emitter.setSpeedVar(10);
// angle
emitter.setAngle(0);
emitter.setAngleVar(360);
// emitter position
emitter.setPosition(CGPoint.ccp( s.width/2, s.height/2));
emitter.setPosVar(CGPoint.zero());
// life of particles
emitter.setLife(2.0f);
emitter.setLifeVar(0.3f);
// emits per frame
emitter.setEmissionRate(emitter.getTotalParticles()/emitter.getLife());
// color of particles
ccColor4F startColor = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);
emitter.setStartColor(startColor);
ccColor4F startColorVar = new ccColor4F(0.5f, 0.5f, 0.5f, 1.0f);
emitter.setStartColorVar(startColorVar);
ccColor4F endColor = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);
emitter.setEndColor(endColor);
ccColor4F endColorVar = new ccColor4F(0.1f, 0.1f, 0.1f, 0.2f);
emitter.setEndColorVar(endColorVar);
// size, in pixels
emitter.setStartSize(1.0f);
emitter.setStartSizeVar(1.0f);
emitter.setEndSize(32.0f);
emitter.setEndSizeVar(8.0f);
// texture
// emitter.texture = [[TextureCache sharedTextureCache] addImage:@"fire-grayscale.png"];
// additive
emitter.setBlendAdditive(false);//不在中心
setEmitterPosition();
}
@Override
public String title()
{
return "Varying size";
}
}
static class DemoRing extends ParticleDemo {
@Override
public void onEnter() {
super.onEnter();
emitter = CCParticleFlower.node(500);
background.addChild(emitter, 10);
emitter.setTexture(CCTextureCache.sharedTextureCache().addImage("stars_grayscale.png"));//設(shè)置紋理
emitter.setLifeVar(0);
emitter.setLife(10);
emitter.setSpeed(100);
emitter.setSpeedVar(0);
emitter.setEmissionRate(10000);//設(shè)置發(fā)射率
setEmitterPosition();
}
@Override
public String title() {
return "Ring Demo";
}
}
static class ParallaxParticle extends ParticleDemo {//視差粒子
@Override
public void onEnter() {
super.onEnter();
background.getParent().removeChild(background, true);//移除背景
background = null;
CCParallaxNode p = CCParallaxNode.node();//一個(gè)基礎(chǔ)的視差場景
addChild(p, 5);
CCSprite p1 = CCSprite.sprite("background3.png");//得到背景精靈1
background = p1;
CCSprite p2 = CCSprite.sprite("background3.png");//背景精靈2
p.addChild(p1, 1, 0.5f, 1f, 0f, 250f);//把背景精靈添加進(jìn)來
p.addChild(p2, 2, 1.5f, 1f, 0f, 50f);//添加背景精靈
emitter = CCParticleFlower.node(500);//粒子花
p1.addChild(emitter, 10);//把粒子花添加進(jìn)來
emitter.setPosition(CGPoint.ccp(250,200));
CCParticleSystem par = CCParticleSun.node(250);//太陽
p2.addChild(par, 10);//添加精靈
par = null;//添加完把原字段置空，因?yàn)槟莻€(gè)引用還在p2子類里
CCMoveBy move = CCMoveBy.action(4, CGPoint.ccp(300,0));//移動(dòng)
CCMoveBy move_back = move.reverse();//返回
CCSequence seq = CCSequence.actions(move, move_back);//移動(dòng)和返回
p.runAction(CCRepeatForever.action(seq));//永久動(dòng)作
}
@Override
public String title() {
return "Parallax + Particles";
}
}
static class ParticleDesigner1 extends ParticleDemo {//粒子設(shè)計(jì)
@Override
public void onEnter() {
super.onEnter();
setColor(ccColor3B.ccBLACK);
removeChild(background, true);//移除場景
background = null;
emitter = CCQuadParticleSystem.particleWithFile("Particles/SpookyPeas.plist");//文件粒子
addChild(emitter, 10);//添加粒子層
}
@Override
public String title() {
return "PD: Spooky Peas";
}
}
static class ParticleDesigner2 extends ParticleDemo {//設(shè)計(jì)2
@Override
public void onEnter() {
super.onEnter();
setColor(ccColor3B.ccBLACK);//設(shè)置背景顏色
removeChild(background, true);//移除背景精靈（和上面顏色無關(guān)）
background = null;//置空，等待回收
emitter = CCQuadParticleSystem.particleWithFile("Particles/SpinningPeas.plist");//從文件得到離子
addChild(emitter, 10);//添加子類效果
// custom spinning
emitter.setStartSpin(0);//同上屬性解釋
emitter.setStartSpin(360);
emitter.setEndSpin(720);
emitter.setEndSpinVar(360);
}
@Override
public String title() {
return "PD: Spinning Peas";
}
}
static class ParticleDesigner3 extends ParticleDemo {//設(shè)計(jì)3
@Override
public void onEnter() {
super.onEnter();
setColor(ccColor3B.ccBLACK);
removeChild(background, true);
background = null;
emitter = CCQuadParticleSystem.particleWithFile("Particles/LavaFlow.plist");//只有文件加載的粒子
addChild(emitter, 10);//添加子類
}
@Override
public String title() {
return "PD: Lava Flow";
}
}
static class ParticleDesigner4 extends ParticleDemo {//設(shè)計(jì)4
@Override
public void onEnter()
{
super.onEnter();
setColor(ccColor3B.ccBLACK);
emitter = CCQuadParticleSystem.particleWithFile("Particles/ExplodingRing.plist");//從文件讀取粒子
addChild(emitter, 10);
removeChild(background, true);//比剛才多移除了背景動(dòng)作
background = null;
}
@Override
public String title()
{
return "PD: Exploding Ring";
網(wǎng)站題目：Cocos2D-Android-1之源碼詳解：16.ParticleTest
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