[self removeChildByTag:1 cleanup:YES];
   
    CCParticleSystem* system;
   
    switch (particleType)
    {
        case ParticleTypeExplosion:
            system = [CCParticleExplosion node];
            break;
        case ParticleTypeFire:
            system = [CCParticleFire node];
            break;
        case ParticleTypeFireworks:
            system = [CCParticleFireworks node];
            break;
        case ParticleTypeFlower:
            system = [CCParticleFlower node];
            break;
        case ParticleTypeGalaxy:
            system = [CCParticleGalaxy node];
            break;
        case ParticleTypeMeteor:
            system = [CCParticleMeteor node];
            break;
        case ParticleTypeRain:
            system = [CCParticleRain node];
            break;
        case ParticleTypeSmoke:
            system = [CCParticleSmoke node];
            break;
        case ParticleTypeSnow:
            system = [CCParticleSnow node];
            break;
        case ParticleTypeSpiral:
            system = [CCParticleSpiral node];
            break;
        case ParticleTypeSun:
            system = [CCParticleSun node];
            break;
           
        default:
            // do nothing
            break;
    }

    [self addChild:system z:1 tag:1];

#import <Foundation/Foundation.h>
#import "cocos2d.h"
// Depending on the targeted device the ParticleEffectSelfMade class will either derive
// from CCPointParticleSystem or CCQuadParticleSystem
@interface ParticleEffectSelfMade : ARCH_OPTIMAL_PARTICLE_SYSTEM
{
}
@end

#import "ParticleEffectSelfMade.h"


@implementation ParticleEffectSelfMade

-(id) init
{
    return [self initWithTotalParticles:250];
}

-(id) initWithTotalParticles:(int)numParticles
{
    if ((self = [super initWithTotalParticles:numParticles]))
    {
        // DURATION
        // most effects use infinite duration
        self.duration = kCCParticleDurationInfinity;
        // for timed effects use a number in seconds how long particles should be emitted
        //self.duration = 2.0f;
        // If the particle system runs for a fixed time, this will remove the particle system node from
        // its parent once all particles have died. Has no effect for infinite particle systems.
        self.autoRemoveOnFinish = YES;

        // MODE
        // particles are affected by gravity
        self.emitterMode = kCCParticleModeGravity;
        // particles move in a circle instead
        //self.emitterMode = kCCParticleModeRadius;
       
        // some properties must only be used with a specific emitterMode!
        if (self.emitterMode == kCCParticleModeGravity)
        {
            // centerOfGravity is misleading as it determines the offset where particles appear. The actual
            // center of gravity is the node's position.
            self.centerOfGravity = CGPointMake(-15, 0);
            // gravity determines the particle's speed in the x and y directions
            self.gravity = CGPointMake(-50, -90);
            // radial acceleration affects how fast particles move depending on their distance to the emitter
            // positive radialAccel means particles speed up as they move away, negative means they slow down
            self.radialAccel = -90;
            self.radialAccelVar = 20;
            // tangential acceleration lets particles rotate around the emitter position,
            // and they speed up as they rotate around (slingshot effect)
            self.tangentialAccel = 120;
            self.tangentialAccelVar = 10;
            // speed is of course how fast particles move in general
            self.speed = 15;
            self.speedVar = 4;
        }
        else if (self.emitterMode == kCCParticleModeRadius)
        {
            // the distance from the emitter position that particles will be spawned and sent out
            // in a radial (circular) fashion
            self.startRadius = 100;
            self.startRadiusVar = 0;
            // the end radius the particles move towards, if less than startRadius particles will move
            // inwards, if greater than startRadius particles will move outward
            // you can use the keyword kCCParticleStartRadiusEqualToEndRadius to create a perfectly circular rotation
            self.endRadius = 10;
            self.endRadiusVar = 0;
            // how fast the particles rotate around
            self.rotatePerSecond = 180;
            self.rotatePerSecondVar = 0;
        }

        // EMITTER POSITION
        // emitter position is at the center of the node (default)
        // this is where new particles will appear
        self.position = CGPointZero;
        self.posVar = CGPointZero;
        // The positionType determines if existing particles should be repositioned when the node is moving
        // (kCCPositionTypeGrouped) or if the particles should remain where they are (kCCPositionTypeFree).
        self.positionType = kCCPositionTypeFree;
       
        // PARTICLE SIZE
        // size of individual particles in pixels
        self.startSize = 40.0f;
        self.startSizeVar = 0.0f;
        self.endSize = kCCParticleStartSizeEqualToEndSize;
        self.endSizeVar = 0;

        // ANGLE (DIRECTION)
        // the direction in which particles are emitted, 0 means upwards
        self.angle = 0;
        self.angleVar = 0;
       
        // PARTICLE LIFETIME
        // how long each individual particle will "life" (eg. stay on screen)
        self.life = 5.0f;
        self.lifeVar = 0.0f;
       
        // PARTICLE EMISSION RATE
        // how many particles per second are created (emitted)
        // particle creation stops if self.particleCount >= self.totalParticles
        // you can use this to create short burst effects with pauses between each burst
        self.emissionRate = 30;
        // normally set with initWithTotalParticles but you can change that number
        self.totalParticles = 250;

        // PARTICLE COLOR
        // A valid startColor must be set! Otherwise the particles may be invisible. The other colors are optional.
        // These colors determine the color of the particle at the start and the end of its lifetime.
        startColor.r = 1.0f;
        startColor.g = 0.25f;
        startColor.b = 0.12f;
        startColor.a = 1.0f;

        startColorVar.r = 0.0f;
        startColorVar.g = 0.0f;
        startColorVar.b = 0.0f;
        startColorVar.a = 0.0f;
       
        endColor.r = 0.0f;
        endColor.g = 0.0f;
        endColor.b = 0.0f;
        endColor.a = 1.0f;
       
        endColorVar.r = 0.0f;
        endColorVar.g = 0.0f;
        endColorVar.b = 1.0f;
        endColorVar.a = 0.0f;
       
        // BLEND FUNC
        // blend func influences how transparent colors are calculated
        // the first parameter is for the source, the second for the target
        // available blend func parameters are:
        // GL_ZERO   GL_ONE   GL_SRC_COLOR   GL_ONE_MINUS_SRC_COLOR   GL_SRC_ALPHA
        // GL_ONE_MINUS_SRC_ALPHA   GL_DST_ALPHA   GL_ONE_MINUS_DST_ALPHA
        self.blendFunc = (ccBlendFunc){GL_SRC_ALPHA, GL_DST_ALPHA};
        // shortcut to set the blend func to: GL_SRC_ALPHA, GL_ONE
        //self.blendAdditive = YES;
       
        // PARTICLE TEXTURE
        self.texture = [[CCTextureCache sharedTextureCache] addImage: @"fire.png"];
    }
   
    return self;
}

@end

-(void) runEffect
{
    // remove any previous particle FX
    [self removeChildByTag:1 cleanup:YES];
   
    CCParticleSystem* system;
   
    switch (particleType)
    {
        case ParticleTypeDesignedFX:
            // by using ARCH_OPTIMAL_PARTICLE_SYSTEM either the CCQuadParticleSystem or CCPointParticleSystem class is
            // used depending on the current target.
            system = [ARCH_OPTIMAL_PARTICLE_SYSTEM particleWithFile:@"designed-fx.plist"];
            break;
        case ParticleTypeDesignedFX2:
            // uses a plist with the texture already embedded
            system = [CCQuadParticleSystem particleWithFile:@"designed-fx2.plist"];
            system.positionType = kCCPositionTypeFree;
            break;
        case ParticleTypeDesignedFX3:
            // same effect but different texture (scaled down by Particle Designer)
            system = [CCQuadParticleSystem particleWithFile:@"designed-fx3.plist"];
            system.positionType = kCCPositionTypeFree;
            break;
        case ParticleTypeSelfMade:
            system = [ParticleEffectSelfMade node];
            break;
       
        default:
            // do nothing
            break;
    }

    CGSize winSize = [[CCDirector sharedDirector] winSize];
    system.position = CGPointMake(winSize.width / 2, winSize.height / 2);
    [self addChild:system z:1 tag:1];
   
    [label setString:NSStringFromClass([system class])];
}

-(void) gotHit
{
    hitPoints--;
    if (hitPoints <= 0)
    {
        self.visible = NO;
       
        // Play a particle effect when the enemy was destroyed
        CCParticleSystem* system;
        if (type == EnemyTypeBoss)
        {
            system = [ARCH_OPTIMAL_PARTICLE_SYSTEM particleWithFile:@"fx-explosion2.plist"];
        }
        else
        {
            system = [ARCH_OPTIMAL_PARTICLE_SYSTEM particleWithFile:@"fx-explosion.plist"];
        }
       
        // Set some parameters that can't be set in Particle Designer
        system.positionType = kCCPositionTypeFree;
        system.autoRemoveOnFinish = YES;
        system.position = self.position;
       
        // Add the particle effect to the GameScene, for these reasons:
        // - self is a sprite added to a spritebatch and will only allow CCSprite nodes (it crashes if you try)
        // - self is now invisible which might affect rendering of the particle effect
        // - since the particle effects are short lived, there is no harm done by adding them directly to the GameScene
        [[GameScene sharedGameScene] addChild:system];
    }
}

-(void) onEnter
{
        // Called right after a node’s init method is called.
        // If using a CCTransitionScene: called when the transition begins.
        [super onEnter];
}
-(void) onEnterTransitionDidFinish
{
        // Called right after onEnter.
        // If using a CCTransitionScene: called when the transition has ended.
        [super onEnterTransitionDidFinish];
}
-(void) onExit
{
        // Called right before node’s dealloc method is called.
        // If using a CCTransitionScene: called when the transition has ended.
        [super onExit];
}

typedef enum
{
        TargetSceneINVALID = 0,
        TargetSceneFirstScene,
        TargetSceneOtherScene,
        TargetSceneMAX,
} TargetScenes;
 
// LoadingScene is derived directly from Scene. We don't need a CCLayer for this scene.
@interface LoadingScene : CCScene
{
        TargetScenes targetScene_;
}

+(id) sceneWithTargetScene:(TargetScenes)targetScene;
{
        // This creates an autorelease object of the current class (self ==  
LoadingScene)
        return [[[self alloc] initWithTargetScene:targetScene] autorelease];
}
 
-(id) initWithTargetScene:(TargetScenes)targetScene
{
        if ((self = [super init]))
        {
                targetScene_ = targetScene;
 
                CCLabel* label = [CCLabel labelWithString:@"Loading ..."  
                                                   fontName:@"Marker Felt" fontSize:64];
                CGSize size = [[CCDirector sharedDirector] winSize];
                label.position = CGPointMake(size.width / 2, size.height / 2);
                [self addChild:label];
 
                // Must wait one frame before loading the target scene!
                [self scheduleUpdate];
        }
 
        return self;
}
 
-(void) update:(ccTime)delta
{
        [self unscheduleAllSelectors];
 
        // Decide which scene to load based on the TargetScenes enum.
        switch (targetScene_)
        {
                case TargetSceneFirstScene:
                        [[CCDirector sharedDirector] replaceScene:[FirstScene scene]];
                        break;
                case TargetSceneOtherScene:
                        [[CCDirector sharedDirector] replaceScene:[OtherScene scene]];
                        break;
 
                default:
                        // Always warn if an unspecified enum value was used
                        NSAssert2(nil, @"%@: unsupported TargetScene %i",  
                                              NSStringFromSelector(_cmd), targetScene_);
                        break;
        }
}

+(MultiLayerScene*) sharedLayer
{
        NSAssert(multiLayerSceneInstance != nil, @"MultiLayerScene not available!");
        return multiLayerSceneInstance;
}
 
-(void) dealloc
{
        // MultiLayerScene will be deallocated now, you must set it to nil
        multiLayerSceneInstance = nil;
 
        // don't forget to call "super dealloc"
        [super dealloc];
}

-(void) registerWithTouchDispatcher
{
    [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:-1 swallowsTouches:YES];
}

// Implements logic to check if the touch location was in an area that this layer wants to handle as input.
-(bool) isTouchForMe:(CGPoint)touchLocation
{
    CCNode* node = [self getChildByTag:UILayerTagFrameSprite];
    return CGRectContainsPoint([node boundingBox], touchLocation);
}

-(BOOL) ccTouchBegan:(UITouch*)touch withEvent:(UIEvent *)event
{
    CGPoint location = [MultiLayerScene locationFromTouch:touch];
    bool isTouchHandled = [self isTouchForMe:location];
    if (isTouchHandled)
    {
        // Simply highlight the UI layer's sprite to show that it received the touch.
        CCNode* node = [self getChildByTag:UILayerTagFrameSprite];
        NSAssert([node isKindOfClass:[CCSprite class]], @"node is not a CCSprite");
       
        ((CCSprite*)node).color = ccRED;
        // 省略
    }

    return isTouchHandled;
}

-(void) ccTouchEnded:(UITouch*)touch withEvent:(UIEvent *)event
{
    CCNode* node = [self getChildByTag:UILayerTagFrameSprite];
    NSAssert([node isKindOfClass:[CCSprite class]], @"node is not a CCSprite");
   
    ((CCSprite*)node).color = ccWHITE;
}

CCLayer* layer1 = [CCLayer node];
CCLayer* layer2 = [CCLayer node];
CCMultiplexLayer* mpLayer = [CCMultiplexLayer layerWithLayers:layer1, layer2, nil];
// Switches to layer2 but keeps layer1 as child of mpLayer.
[mpLayer switchTo:1];
// Switches to layer1, removes layer2 from mpLayer and releases its memory.
// After this call you must not switch back to layer2 (index: 1) anymore!
[mpLayer switchToAndReleaseMe:0];

// Set background color to magenta. The most unobtrusive color imaginable.
CCColorLayer* colorLayer = [CCColorLayer layerWithColor:ccc4(255, 0, 255, 255)];
[self addChild:colorLayer z:0];

@interface Spider : NSObject
{
        CCSprite* spiderSprite;
}
 
+(id) spiderWithParentNode:(CCNode*)parentNode;
-(id) initWithParentNode:(CCNode*)parentNode;
 
@end

#import "Spider.h"
 
@implementation Spider
 
// Static autorelease initializer, mimics cocos2d's memory allocation scheme.
+(id) spiderWithParentNode:(CCNode*)parentNode
{
        return [[[self alloc] initWithParentNode:parentNode] autorelease];
}
 
-(id) initWithParentNode:(CCNode*)parentNode
{
        if ((self = [super init]))
        {
                CGSize screenSize = [[CCDirector sharedDirector] winSize];
 
                spiderSprite = [CCSprite spriteWithFile:@"spider.png"];
                spiderSprite.position = CGPointMake(CCRANDOM_0_1() *  
                                  screenSize.width, CCRANDOM_0_1() * screenSize.height);
                [parentNode addChild:spiderSprite];
 
                // Manually schedule update via the undocumented CCScheduler class.
                [[CCScheduler sharedScheduler] scheduleUpdateForTarget:self priority:0  
                                                                             paused:NO];
        }
 
        return self;
}
 
-(void) dealloc
{
        // Must manually unschedule, it is not done automatically.
        [[CCScheduler sharedScheduler] unscheduleUpdateForTarget:self];
 
        [super dealloc];
}

-(id) initWithParentNode:(CCNode*)parentNode
{
        if ((self = [super init]))
        {
                …
                // Manually schedule update via the undocumented CCScheduler class.
                [[CCScheduler sharedScheduler] scheduleUpdateForTarget:self priority:0  
                                                                             paused:NO];
 
                // Manually add this class as receiver of targeted touch events.
                [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self  
                                                       priority:-1 swallowsTouches:YES];
        }
 
        return self;
}
 
-(void) dealloc
{
        // Must manually unschedule, it is not done automatically!
        [[CCScheduler sharedScheduler] unscheduleUpdateForTarget:self];
 
        // Must manually remove this class as touch input receiver!
        [[CCTouchDispatcher sharedDispatcher] removeDelegate:self];
 
        [super dealloc];
}
 
// Extract common logic into a separate method accepting parameters.
-(void) moveAway:(float)duration position:(CGPoint)moveTo
{
        [spiderSprite stopAllActions];
        CCMoveBy* move = [CCMoveBy actionWithDuration:duration position:moveTo];
        [spiderSprite runAction:move];
}
 
-(void) update:(ccTime)delta
{
        numUpdates++;
        if (numUpdates > 50)
        {
                numUpdates = 0;
 
                // Move at regular speed.
                CGPoint moveTo = CGPointMake(CCRANDOM_0_1() * 200 - 100,  
                                                             CCRANDOM_0_1() * 100 - 50);
                [self moveAway:2 position:moveTo];
        }
}
 
-(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
        // Check if this touch is on the Spider's sprite.
        CGPoint touchLocation = [MultiLayerScene locationFromTouch:touch];
        BOOL isTouchHandled = CGRectContainsPoint([spiderSprite boundingBox],  
                                                                         touchLocation);
        if (isTouchHandled)
        {
               // Reset move counter.
                numUpdates = 0;
 
                // Move away from touch loation rapidly.
                CGPoint moveTo;
                float moveDistance = 60;
                float rand = CCRANDOM_0_1();
 
                // Randomly pick one of four corners to move away to.
                if (rand < 0.25f)
                        moveTo = CGPointMake(moveDistance, moveDistance);
                else if (rand < 0.5f)
                        moveTo = CGPointMake(-moveDistance, moveDistance);
                else if (rand < 0.75f)
                        moveTo = CGPointMake(moveDistance, -moveDistance);
                else
                        moveTo = CGPointMake(-moveDistance, -moveDistance);
                 
                // Move quickly:
                [self moveAway:0.1f position:moveTo];
        }
 
        return isTouchHandled;
}

// Progress timer is a sprite only partially displayed to visualize some kind of progress.
CCProgressTimer* timer = [CCProgressTimer progressWithFile:@"firething.png"];
timer.type = kCCProgressTimerTypeRadialCCW;
timer.percentage = 0;
[self addChild:timer z:1 tag:UILayerTagProgressTimer];
// The update is needed for the progress timer.
[self scheduleUpdate];

-(void) update:(ccTime)delta
{
    CCNode* node = [self getChildByTag:UILayerTagProgressTimer];
    NSAssert([node isKindOfClass:[CCProgressTimer class]], @"node is not a CCProgressTimer");
    // Updates the progress timer
    CCProgressTimer* timer = (CCProgressTimer*)node;
    timer.percentage += delta * 10;
    if (timer.percentage >= 100)
    {
        timer.percentage = 0;
    }
}

// Load the sprites for each parallax layer, from background to foreground.
CCSprite* para1 = [CCSprite spriteWithFile:@"parallax1.png"];
CCSprite* para2 = [CCSprite spriteWithFile:@"parallax2.png"];
CCSprite* para3 = [CCSprite spriteWithFile:@"parallax3.png"];
CCSprite* para4 = [CCSprite spriteWithFile:@"parallax4.png"];
// Set the correct offsets depending on the screen and image sizes.
para1.anchorPoint = CGPointMake(0, 1);
para2.anchorPoint = CGPointMake(0, 1);
para3.anchorPoint = CGPointMake(0, 0.6f);
para4.anchorPoint = CGPointMake(0, 0);
CGPoint topOffset = CGPointMake(0, screenSize.height);
CGPoint midOffset = CGPointMake(0, screenSize.height / 2);
CGPoint downOffset = CGPointZero;
// Create a parallax node and add the sprites to it.
CCParallaxNode* paraNode = [CCParallaxNode node];
[paraNode addChild:para1 z:1 parallaxRatio:CGPointMake(0.5f, 0) positionOffset:topOffset];
[paraNode addChild:para2 z:2 parallaxRatio:CGPointMake(1, 0) positionOffset:topOffset];
[paraNode addChild:para3 z:4 parallaxRatio:CGPointMake(2, 0) positionOffset:midOffset];
[paraNode addChild:para4 z:3 parallaxRatio:CGPointMake(3, 0) positionOffset:downOffset];
[self addChild:paraNode z:0 tag:ParallaxSceneTagParallaxNode];
// Move the parallax node to show the parallaxing effect.
CCMoveBy* move1 = [CCMoveBy actionWithDuration:5 position:CGPointMake(-160, 0)];
CCMoveBy* move2 = [CCMoveBy actionWithDuration:15 position:CGPointMake(160, 0)];
CCSequence* sequence = [CCSequence actions:move1, move2, nil];
CCRepeatForever* repeat = [CCRepeatForever actionWithAction:sequence];
[paraNode runAction:repeat];

-(void) resetRibbon
{
    // Removes the ribbon and creates a new one.
    [self removeChildByTag:ParallaxSceneTagRibbon cleanup:YES];
    CCRibbon* ribbon = [CCRibbon ribbonWithWidth:32 image:@"spider.png" length:32 color:ccc4(255, 255, 255, 255) fade:0.5f];
    [self addChild:ribbon z:5 tag:ParallaxSceneTagRibbon];
}

-(CCRibbon*) getRibbon
{
    CCNode* node = [self getChildByTag:ParallaxSceneTagRibbon];
    NSAssert([node isKindOfClass:[CCRibbon class]], @"node is not a CCRibbon");
    return (CCRibbon*)node;
}

-(void) addRibbonPoint:(CGPoint)point
{
    CCRibbon* ribbon = [self getRibbon];
    [ribbon addPointAt:point width:32];
}

-(BOOL) ccTouchBegan:(UITouch*)touch withEvent:(UIEvent *)event
{
    [self addRibbonPoint:[MultiLayerScene locationFromTouch:touch]];
    return YES;
}

-(void) ccTouchMoved:(UITouch*)touch withEvent:(UIEvent *)event
{
    [self addRibbonPoint:[MultiLayerScene locationFromTouch:touch]];
}

-(void) ccTouchEnded:(UITouch*)touch withEvent:(UIEvent *)event
{
    [self resetRibbon];
}

-(void) resetMotionStreak
{
    // Removes the CCMotionStreak and creates a new one.
    [self removeChildByTag:ParallaxSceneTagRibbon cleanup:YES];
        CCMotionStreak* streak = [CCMotionStreak streakWithFade:0.7f minSeg:10
    image:@"spider.png" width:32 length:32 color:ccc4(255, 0, 255, 255)];
    [self addChild:streak z:5 tag:ParallaxSceneTagRibbon];
}

-(void) addMotionStreakPoint:(CGPoint)point
{
    CCMotionStreak* streak = [self getMotionStreak];
    [streak.ribbon addPointAt:point width:32];
}