您如何制作SKScene的背景色动画?我尝试了UIView动画,但不出意外它没有用。在Sprite-Kit中是否有相同的功能?
我正在寻找类似的东西,但对于Sprite-Kit:
[UIView animateWithDuration:0.25 animations:^{
self.backgroundColor = [UIColor redColor];
}];
目前,作为一种解决方法,我已经在SKView上覆盖了UIView,但我希望更灵活。
我对Sprite-Kit比较陌生,所以请注意这是非常简单的事情!
目前我有:
-(id) initWithSize:(CGSize)size {
if (self = [super initWithSize:size]) {
_bg = [SKSpriteNode spriteNodeWithColor:[SKColor colorWithRed:0.13 green:0.13 blue:0.13 alpha:1] size:self.size];
_bg.position = CGPointMake(self.size.width/2, self.size.height/2);
[self addChild:_bg];
}
return self;
}
-(void) colorise :(UIColor*)color {
[_bg runAction:[SKAction colorizeWithColor:color colorBlendFactor:_bg.colorBlendFactor duration:1]];
}
在初始化SKView之后,我根据NSUserDefault值设置bg精灵的颜色。
if ([[NSUserDefaults standardUserDefaults] integerForKey:@"currGameMode"] == 0) {
((bubbleAnimation2*)_bubbleEffectView.scene).bg.color = [UIColor colorWithRed:0.13 green:0.13 blue:0.13 alpha:1];}
else {((bubbleAnimation2*)_bubbleEffectView.scene).bg.color = [UIColor colorWithRed:0.25 green:0.13 blue:0.13 alpha:1];}
谢谢!
答案 0 :(得分:1)
好吧,我提出了一个完全过度设计的解决方案!我有一系列背景精灵,我克隆原始精灵并改变它的颜色,然后将其设置为动画。
这是我的代码:
-(void) colorise :(UIColor*)color {
// [_bg runAction:[SKAction colorizeWithColor:color colorBlendFactor:_bg.colorBlendFactor duration:1]];
if ([_bgObjects count] != 0) {
SKSpriteNode* newBg = [[_bgObjects objectAtIndex:0] copy];
newBg.color = color;
newBg.alpha = 0;
[self insertChild:newBg atIndex:1];
[newBg runAction:[SKAction fadeAlphaTo:1 duration:0.5]];
[_bgObjects addObject:newBg];
for (int i = 0; i < ([_bgObjects count]-1); i++) {
[[_bgObjects objectAtIndex:i] runAction:[SKAction fadeAlphaTo:0 duration:0.5]];
}
}
}
-(void) update:(NSTimeInterval)currentTime {
if ([_bgObjects count] > 1) {
NSMutableArray* toDelete = [NSMutableArray arrayWithObjects: nil];
for (SKSpriteNode* bg in _bgObjects) {
if ((bg.alpha == 0) && !bg.hasActions) {
[bg removeFromParent];
[toDelete addObject:bg];
}} [_bgObjects removeObjectsInArray:toDelete];
}
}