Objective C - CCSprites 在我的代码的不同部分以不同的方式缩放和显示
我正在构建一个具有主菜单层和背景层(用于游戏玩法)的应用程序。我在两个地方加载完全相同的 CCParallax 节点代码,使用相同的图像来创建无限滚动背景。
在游戏背景层上,背景适当地显示和滚动。然而,在主菜单层上,背景缩放得很奇怪(它们不占据整个屏幕),并且也没有适当滚动(可能是因为比例以某种方式关闭,所以偏移不起作用)。
这是主菜单背景的屏幕截图:
这里它位于背景层(绿线是游戏玩法的一部分):
看起来菜单层几乎正在添加文件的非视网膜显示版本,但是如果我加载模拟器进入 iPhone(非视网膜)模式,菜单背景仍然很远:
代码加载两个的是几乎相同。
这是主菜单加载器代码:
-(id)init {
self = [super init];
if (self != nil) {
CGSize winSize = [CCDirector sharedDirector].winSize;
_backgroundNode = [CCParallaxNode node];
[self addChild:_backgroundNode z:-1];
_backgroundGrid1 = [CCSprite spriteWithFile:@"grid.png"];
_backgroundCircuits1 = [CCSprite spriteWithFile:@"bg-circuits.png"];
_backgroundGrid1.anchorPoint = CGPointMake(0,0);
_backgroundCircuits1.anchorPoint = CGPointMake(0,0);
CGPoint gridSpeed = ccp(0.05, 0.05);
CGPoint circuitSpeed = ccp(0.1, 0.1);
[_backgroundNode addChild:_backgroundGrid1 z:1 parallaxRatio:gridSpeed positionOffset:ccp(0,-winSize.height)];
[_backgroundNode addChild:_backgroundCircuits1 z:0 parallaxRatio:circuitSpeed positionOffset:ccp(0,-winSize.height)];
[self scheduleUpdate];
}
return self;
}
- (void)update:(ccTime)dt {
CGPoint backgroundScrollVel = ccp(0, 1000);
_backgroundNode.position = ccpAdd(_backgroundNode.position, ccpMult(backgroundScrollVel, dt));
NSArray *backgroundGrids = [NSArray arrayWithObjects:_backgroundGrid1, nil];
for (CCSprite *b in backgroundGrids) {
if ([_backgroundNode convertToWorldSpace:b.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(b.contentSize.height/3)) forChild:b];
}
}
NSArray *backgroundCircuits = [NSArray arrayWithObjects:_backgroundCircuits1, nil];
for (CCSprite *bc in backgroundCircuits) {
if ([_backgroundNode convertToWorldSpace:bc.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(bc.contentSize.height/3)) forChild:bc];
}
}
}
这是背景层的代码:
- (id)init
{
self = [super init];
if (self != nil) {
CGSize winSize = [CCDirector sharedDirector].winSize;
_backgroundNode = [CCParallaxNode node];
[self addChild:_backgroundNode z:-1];
_backgroundGrid1 = [CCSprite spriteWithFile:@"grid.png"];
_backgroundCircuits1 = [CCSprite spriteWithFile:@"bg-circuits.png"];
_backgroundGrid1.anchorPoint = CGPointMake(0,0);
_backgroundCircuits1.anchorPoint = CGPointMake(0,0);
CGPoint gridSpeed = ccp(0.05, 0.05);
CGPoint circuitSpeed = ccp(0.1, 0.1);
[_backgroundNode addChild:_backgroundGrid1 z:1 parallaxRatio:gridSpeed positionOffset:ccp(0,-winSize.height)];
[_backgroundNode addChild:_backgroundCircuits1 z:0 parallaxRatio:circuitSpeed positionOffset:ccp(0,-winSize.height)];
[self scheduleUpdate];
return self;
}
- (void)update:(ccTime)dt {
CGPoint backgroundScrollVel = ccp(0, 1000);
_backgroundNode.position = ccpAdd(_backgroundNode.position, ccpMult(backgroundScrollVel, dt));
NSArray *backgroundGrids = [NSArray arrayWithObjects:_backgroundGrid1, nil];
for (CCSprite *b in backgroundGrids) {
if ([_backgroundNode convertToWorldSpace:b.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(b.contentSize.height/3)) forChild:b];
}
}
NSArray *backgroundCircuits = [NSArray arrayWithObjects:_backgroundCircuits1, nil];
for (CCSprite *bc in backgroundCircuits) {
if ([_backgroundNode convertToWorldSpace:bc.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(bc.contentSize.height/3)) forChild:bc];
}
}
}
I'm building an app that has a main menu layer and a background layer (for gameplay). I am loading the exact same CCParallax node code in both places, using the same images to create an infinite scrolling background.
On the gameplay background layer, the background displays and scrolls appropriately. However, on the main menu layer, the backgrounds are scaled weird (they don't take up the entire screen), and also don't scroll appropriately (probably because the scale is off somehow, so the offset isn't working).
Here is a screenshot of what the background looks like on the main menu:
And here it is on the background layer (green lines are part of the gameplay):
It almost looks like the menu layer is adding the non-retina display version of the files, but if I load the simulator into the iPhone (non-retina) mode, the meny background is still way off:
The code that loads the two is pretty much identical.
Here is the main menu loader code:
-(id)init {
self = [super init];
if (self != nil) {
CGSize winSize = [CCDirector sharedDirector].winSize;
_backgroundNode = [CCParallaxNode node];
[self addChild:_backgroundNode z:-1];
_backgroundGrid1 = [CCSprite spriteWithFile:@"grid.png"];
_backgroundCircuits1 = [CCSprite spriteWithFile:@"bg-circuits.png"];
_backgroundGrid1.anchorPoint = CGPointMake(0,0);
_backgroundCircuits1.anchorPoint = CGPointMake(0,0);
CGPoint gridSpeed = ccp(0.05, 0.05);
CGPoint circuitSpeed = ccp(0.1, 0.1);
[_backgroundNode addChild:_backgroundGrid1 z:1 parallaxRatio:gridSpeed positionOffset:ccp(0,-winSize.height)];
[_backgroundNode addChild:_backgroundCircuits1 z:0 parallaxRatio:circuitSpeed positionOffset:ccp(0,-winSize.height)];
[self scheduleUpdate];
}
return self;
}
- (void)update:(ccTime)dt {
CGPoint backgroundScrollVel = ccp(0, 1000);
_backgroundNode.position = ccpAdd(_backgroundNode.position, ccpMult(backgroundScrollVel, dt));
NSArray *backgroundGrids = [NSArray arrayWithObjects:_backgroundGrid1, nil];
for (CCSprite *b in backgroundGrids) {
if ([_backgroundNode convertToWorldSpace:b.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(b.contentSize.height/3)) forChild:b];
}
}
NSArray *backgroundCircuits = [NSArray arrayWithObjects:_backgroundCircuits1, nil];
for (CCSprite *bc in backgroundCircuits) {
if ([_backgroundNode convertToWorldSpace:bc.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(bc.contentSize.height/3)) forChild:bc];
}
}
}
And here is the code for the background layer:
- (id)init
{
self = [super init];
if (self != nil) {
CGSize winSize = [CCDirector sharedDirector].winSize;
_backgroundNode = [CCParallaxNode node];
[self addChild:_backgroundNode z:-1];
_backgroundGrid1 = [CCSprite spriteWithFile:@"grid.png"];
_backgroundCircuits1 = [CCSprite spriteWithFile:@"bg-circuits.png"];
_backgroundGrid1.anchorPoint = CGPointMake(0,0);
_backgroundCircuits1.anchorPoint = CGPointMake(0,0);
CGPoint gridSpeed = ccp(0.05, 0.05);
CGPoint circuitSpeed = ccp(0.1, 0.1);
[_backgroundNode addChild:_backgroundGrid1 z:1 parallaxRatio:gridSpeed positionOffset:ccp(0,-winSize.height)];
[_backgroundNode addChild:_backgroundCircuits1 z:0 parallaxRatio:circuitSpeed positionOffset:ccp(0,-winSize.height)];
[self scheduleUpdate];
return self;
}
- (void)update:(ccTime)dt {
CGPoint backgroundScrollVel = ccp(0, 1000);
_backgroundNode.position = ccpAdd(_backgroundNode.position, ccpMult(backgroundScrollVel, dt));
NSArray *backgroundGrids = [NSArray arrayWithObjects:_backgroundGrid1, nil];
for (CCSprite *b in backgroundGrids) {
if ([_backgroundNode convertToWorldSpace:b.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(b.contentSize.height/3)) forChild:b];
}
}
NSArray *backgroundCircuits = [NSArray arrayWithObjects:_backgroundCircuits1, nil];
for (CCSprite *bc in backgroundCircuits) {
if ([_backgroundNode convertToWorldSpace:bc.position].y > 0) {
[_backgroundNode incrementOffset:ccp(0,-(bc.contentSize.height/3)) forChild:bc];
}
}
}
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