目标C - 动画SKScene的背景颜色 [英] Objective c - Animate background colour of SKScene
问题描述
您会如何去动画的SKScene的背景颜色?我试过一个UIView动画,但并不令人惊讶它没有工作。是否有一个相当于雪碧-Kit的做到这一点?
How would you go about animating the background colour of an SKScene? I've tried a UIView animate, but not surprisingly it didn't work. Is there an equivalent to do this in Sprite-Kit?
我在寻找这样的事情,但对于雪碧套件:
I'm looking for something like this, but for Sprite-Kit:
[UIView animateWithDuration:0.25 animations:^{
self.backgroundColor = [UIColor redColor];
}];
目前,由于周围的工作我都叠加在SKView一个UIView,但我喜欢的东西更灵活。
At the moment, as a work around I have overlayed a UIView over the SKView, but I would like something more flexible.
我是比较新的Sprite的套件,所以appologies如果这是做非常简单!
I am relatively new to Sprite-Kit, so appologies if this is extremely simple to do!
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]];
}
另外的初始化后SKView,我设置取决于一个NSUserDefault值BG精灵的颜色。
Also after initialising the SKView, I'm setting the color of the bg sprite depending on an NSUserDefault Value.
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!
推荐答案
好吧,我想出了一个完全过去设计的解决方案!我有背景精灵数组,我克隆原来精灵和改变它的颜色,然后在制作动画。
Well, I came up with a completely over-engineered solution! I have an array of background sprites and I clone the original sprite and change it's color and then animate it in.
下面是我的code:
-(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];
}
}
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