COCOS2D中得动作，特效和动画
最后更新于：2022-04-01 20:15:08
一，CCActionManager 管理所有节点动作的对象
来看看打飞机里面的一个onEnter 方法
~~~
- (void)onEnter
{
[super onEnter]; //一定要注意添加此方法，否则将停留在开始界面
CGSize winSize = [[CCDirector sharedDirector] winSize];
[CCMenuItemFont setFontSize:20];
[CCMenuItemFont setFontName:@"Arial"];
CCMenuItemFont *startItem = [CCMenuItemFont itemWithString:@"开始游戏" block:^(id sender)
{
_isGameStarted = YES;
CCMenuItem *item = (CCMenuItemFont*)sender;
item.visible = NO;
//6.spawn enemy after 1.0 sec
[self performSelector:@selector(spawnEnemy)
withObject:nil
afterDelay:1.0f];
//7.enable accelerometer
self.isAccelerometerEnabled = YES;
//9.enable touch
self.isTouchEnabled = YES;
}];
startItem.position = ccp(winSize.width / 2, -winSize.height / 2);
_startGameMenu = [CCMenu menuWithItems:startItem, nil];
_startGameMenu.position = CGPointZero;
[self addChild:_startGameMenu];
//7 基本动作 从原来的位置移动到新的位置
id moveBy = [CCMoveBy actionWithDuration:1.0 position:ccp(0, winSize.height)]; //位置的移动
[_startGameMenu runAction:moveBy]; //开始移动
//8 和位置有关的基本动作
//1 CCActionManager
[[[CCDirector sharedDirector] actionManager ] pauseTarget:_startGameMenu];//暂停
[self schedule:@selector(resumeStartMenuAction:) interval:1.0]; //等待十秒之后才能开始移动
//2CCAction 抽象类，几乎所有的类都继承该类
//3.CCFiniteTimeAction 该类为有限时间动作，包含CCActionInstant 瞬时动作 和CCActionInterval 区间动作,他们包含了很多不同的动作
//4 CCRepaeatForever 无限重复的动作
//5跟随节点的动作CCFollow .可以替代Camera
//6 CCSpeed 更还节点动作的速度。
// 7CCOrbitCamera 继承与CCActionCamera 。使用球坐标系围绕屏幕中心旋转摄像机的视角
}
- (void)resumeStartMenuAction:(ccTime)dt
{
[self unschedule:_cmd]; //停止当前动作
[[[CCDirector sharedDirector]actionManager] resumeTarget:_startGameMenu];
}
~~~
二，基本动作：和位置相关的基本动作
~~~
CGSize winSize = [[CCDirector sharedDirector] winSize];
CCSprite *plane = [CCSprite spriteWithFile:@"hero_1.png"];
plane.position = ccp(winSize.width/2, winSize.height/2);
[self addChild:plane];
//2 moveBy 让节点对象在一定时间内移动一定的像素值 ,这个是相对于原位置的
[plane runAction:[CCMoveBy actionWithDuration:3 position:ccp(50, 0)]];
//3 CCjumpTo
[plane runAction:[CCJumpTo actionWithDuration:4 position:ccp(winSize.width, winSize.height) height:40 jumps:3]];
//4CCJumpBy 相对于原位置的移动 ,相对于原位置的偏移量为 100，0
[plane runAction:[CCJumpBy actionWithDuration:3 position:ccp(100, 0) height:100 jumps:4]];
//5CCBezier TO
ccBezierConfig c = {ccp(300, 100),ccp(50, 50),ccp(-50, -50)};
//1.参数一 相对于原位置的偏移，2，3分别是贝塞尔曲线的两个控制点
[plane runAction:[CCBezierTo actionWithDuration:3 bezier:c]];
//6 CCplace 将对象直接放到指定的位置
[plane runAction:[CCPlace actionWithPosition:ccp(10, 10)]];
~~~
三，和大小相关的基本动作
~~~
//二 和大小相关的基本动作
// 1 CCScale TO、放大为原来的两倍
[plane runAction:[CCScaleTo actionWithDuration:2 scale:2]];
//2 CCScale By 缩小相应的倍数
[plane runAction:[CCScaleBy actionWithDuration:3 scale:3]];
[plane runAction:[CCScaleBy actionWithDuration:3 scaleX:0.5 scaleY:0.5]]; //对象的高度和宽度的缩小
~~~
四：和旋转有关的基本动作
~~~
//三 和旋转有关的动作
//1 CCRotate To ，by ，超过180逆时针旋转，《180.顺时针旋转
[plane runAction:[CCRotateTo actionWithDuration:2 angle:290]];
~~~
五，和显示有关的基本动作
~~~
//四 和显示有关的动作
//1 CCSHOW
[plane runAction:[CCShow action]];
//2CCHide
[plane runAction:[CCHide action]];
//3 切换uixiang的可视属性
[plane runAction:[CCToggleVisibility action]];
//4 闪动一定的次数
[plane runAction:[CCBlink actionWithDuration:5 blinks:10]];
~~~
六，和透明度有关的基本动作
~~~
//五 和透明度有关的动作
//1 CCFadeIn 透明度从0 -》 255
[plane runAction:[CCFadeIn actionWithDuration:8]];
//2 CCFadeOut 透明度 从255 - 》0
[plane runAction:[CCFadeOut actionWithDuration:5]];
//3 CCFadeto
[plane runAction:[CCFadeTo actionWithDuration:4 opacity:90]];
~~~
七，和色彩有关的基本动作
~~~
//六 和色彩有关的动作
//1 CCTintTO 在一定时间内将节点着色到某个特定的RGB值
[plane runAction:[CCTintTo actionWithDuration:3 red:100 green:0 blue:1]];
//2 CCTintBy 大致相同
~~~
八和翻转相关的基本动作
~~~
//七 和翻转有关的动作
//1 CCFlipX ,CCFlipY
[plane runAction:[CCFlipX actionWithFlipX:YES]];
~~~
2.组合动作
一，组合动作的类
~~~
//八 组合动作
//1 Spawn 动作数据，
[plane runAction:[CCSpawn actions:[CCFadeOut actionWithDuration:4],[CCScaleTo actionWithDuration:3 scale:2], nil]];
// 2 CCSequence 该组合可以按顺序执行多个动作，也可以包含多个组合动作
//九 Ease 动作 使用ease动作修改的是节点内部动作的速度，而不是动作的执行时间
id easeAction = [CCEaseBackOut actionWithAction:[CCMoveTo actionWithDuration:2 position:ccp(100+winSize.width/2, winSize.height/2)]];
id action = [CCSequence actions:easeAction,[CCScaleTo actionWithDuration:2 scale:2], nil];
[plane runAction:action];
~~~
二，一个飞机俯冲的组合动作的代码
~~~
#pragma mark - private methods
-(void) spawnEnemy{
//1.
CGSize winSize = [CCDirector sharedDirector].winSize;
CCSprite *enemySprite = [self getAvailableEnemySprite];
enemySprite.visible = YES;
enemySprite.position = ccp( arc4random() % (int)(winSize.width - enemySprite.contentSize.width) + enemySprite.contentSize.width/2 , winSize.height + enemySprite.contentSize.height + 10);
//2.
float durationTime = arc4random() % 4 + 1;
id moveBy = [CCMoveBy actionWithDuration:durationTime
position:ccp(0,-enemySprite.position.y-enemySprite.contentSize.height)];
int choice = arc4random() % 4 + 1;
id easeMoveBy = nil;
switch (choice) {
case 1:
easeMoveBy = [CCEaseIn actionWithAction:moveBy];
break;
case 2:
easeMoveBy = [CCEaseExponentialIn actionWithAction:moveBy];
break;
case 3:
easeMoveBy = [CCEaseBounceIn actionWithAction:moveBy];
break;
case 4:
easeMoveBy = [CCEaseBackIn actionWithAction:moveBy];
break;
default:
break;
}
id callback = [CCCallBlockN actionWithBlock:^(id sender)
{
CCSprite *sp = (CCSprite*)sender;
sp.visible = NO;
sp.position = ccp(0,winSize.height + sp.contentSize.height + 10);
CCLOG(@"reset enemy plane!");
}];
id action = [CCSequence actions:easeMoveBy,callback, nil];
CCLOG(@"enemySprite x = %f, y = %f",enemySprite.position.x, enemySprite.position.y);
[enemySprite runAction:action];
//3.
[self performSelector:_cmd withObject:nil afterDelay:arc4random()%3 + 1];
}
~~~
三，延迟动作
~~~
//十 延迟动作
id action = [CCSequence actions:[CCDelayTime actionWithDuration:3],[CCMoveTo actionWithDuration:2 position:ccp(100 + winSize.width/2, winSize.height)], nil];
[plane runAction:action];
~~~
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