所以我尝试使用这篇文章的解决方案 (Sprite kit side scrolling) 创建一个无限滚动的背景。 但是,我想让图像可重复。正如您在下面的视频中看到的,在图像完成水平方向后,有一些空隙。我想让图像填充那个空隙,所以不断重复。
http://www.youtube.com/watch?v=kyLTGz7Irrc 或者 https://vimeo.com/79555900 (密码:spritekit)
我做了什么:
for (int i = 0; i < 2; i++) {
SKSpriteNode * bg = [SKSpriteNode spriteNodeWithImageNamed:@"bgimage"];
bg.anchorPoint = CGPointZero;
bg.position = CGPointMake(CGRectGetMidX(self.frame), self.frame.origin.y);
bg.name = @"snow1";
[self addChild:bg];
}
在更新方法中:
[self enumerateChildNodesWithName:@"snow1" usingBlock: ^(SKNode *node, BOOL *stop) {
SKSpriteNode *bg = (SKSpriteNode *) node;
bg.position = CGPointMake(bg.position.x - 5, bg.position.y);
if (bg.position.x <= -bg.size.width)
bg.position = CGPointMake(bg.position.x + bg.size.width * 2, bg.position.y);
}];
最佳答案
无论如何,我修复了它。以防万一其他人需要它,我就是这样做的:
// Create 2 background sprites
bg1 = [SKSpriteNode spriteNodeWithImageNamed:@"bg1"];
bg1.anchorPoint = CGPointZero;
bg1.position = CGPointMake(0, 0);
[self addChild:bg1];
bg2 = [SKSpriteNode spriteNodeWithImageNamed:@"bg2"];
bg2.anchorPoint = CGPointZero;
bg2.position = CGPointMake(bg1.size.width-1, 0);
[self addChild:bg2];
然后在更新方法中:
bg1.position = CGPointMake(bg1.position.x-4, bg1.position.y);
bg2.position = CGPointMake(bg2.position.x-4, bg2.position.y);
if (bg1.position.x < -bg1.size.width)
bg1.position = CGPointMake(bg2.position.x + bg2.size.width, bg1.position.y);
if (bg2.position.x < -bg2.size.width)
bg2.position = CGPointMake(bg1.position.x + bg1.size.width, bg2.position.y);
关于ios - 滚动背景 - Sprite Kit,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20019522/