ios – Sprite工具包在移动父SKNode后找不到nodeAtPoint

概述你好. 我在Sprite Kit中遇到了这个奇怪的问题.我正在使用nodeAtPoint和categoryBitMask来检测玩家在调用跳转方法时是否触地. 一切都在发挥作用.但是 – 为了在抽屉中显示一些可选按钮 – 当我使用SKAction moveTo移动父节点时：CGPoint(我将地面和玩家都作为SKNode的子节点),玩家不会跳跃.我NSLog pointBelowPlayer,它和以 你好.

我在Sprite Kit中遇到了这个奇怪的问题.我正在使用nodeAtPoint和categoryBitMask来检测玩家在调用跳转方法时是否触地.

一切都在发挥作用.但是 – 为了在抽屉中显示一些可选按钮 – 当我使用SKAction moveto移动父节点时：CGPoint(我将地面和玩家都作为SKNode的子节点),玩家不会跳跃.我NSLog pointBelowPlayer,它和以前一样,但是blockNode.physicsBody是null！这可能是Sprite Kit中的一个错误,还是我遗漏了一些关于继承和位置的基本信息？

跳跃的方法：

-(voID)playerJump {    // Player jump if on ground    CGPoint pointBelowPlayer = CGPointMake(_player.position.x,_player.position.y-_player.size.height);    SKNode *blockNode = [self nodeAtPoint:pointBelowPlayer];    if (blockNode.physicsBody.categoryBitMask == groundcategory){        [_player.physicsBody applyImpulse:CGVectorMake(0,120.0f)];    }}

移动父节点的方法：

-(voID)toggleDrawer {    if (bDrawerVisible) {        [_actionLayer runAction:[SKAction moveto:CGPointMake(0,0) duration:1]];        bDrawerVisible = false;    } else {        [_actionLayer runAction:[SKAction moveto:CGPointMake(0,200) duration:1]];        bDrawerVisible = true;    }}

创建SpriteNodes：

-(ID)initWithSize:(CGSize)size {    if (self = [super initWithSize:size]) {        _actionLayer = [SKNode new];        _player = [self createPlayer];        [_actionLayer addChild:_player];        _ground = [self createGround];        [_actionLayer addChild:_ground];}-(SKSpriteNode *)createPlayer {    SKSpriteNode *player = [SKSpriteNode spriteNodeWithImagenamed:@"redSquare.png"];    player.name = @"player";    player.scale = 0.5;    player.position = CGPointMake(screenWIDth/3,player.size.height*2);    player.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:player.size];    player.physicsBody.categoryBitMask = playercategory;    player.physicsBody.collisionBitMask = groundcategory;    player.physicsBody.contactTestBitMask = notecategory;    return player;}-(SKSpriteNode *)createGround {    SKSpriteNode *ground = [SKSpriteNode spriteNodeWithImagenamed:@"ground.png"];    ground.name = @"ground";    ground.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:ground.size];    ground.physicsBody.dynamic = NO;    ground.physicsBody.categoryBitMask = groundcategory;    ground.physicsBody.collisionBitMask = playercategory;    ground.xScale = screenWIDth/ground.size.wIDth;;    ground.position = CGPointMake(self.size.wIDth/2,0);    return ground;}

解决方法 好的,我解决了这个问题……
如果您有多个节点,则在您点击的位置上,如果最深节点没有名称或最深节点的名称,您将获得null.

所以使用它来遍历所有节点：

UItouch *touch = [touches anyObject];CGPoint location = [touch locationInNode:self];NSArray *buttonNodes = [self nodesAtPoint:location];for (SKNode *node in buttonNodes){    NSLog(@"%@",node.name);}

另外你可以使用NSLog(@“％f”,node.zposition);得到zposition看到女巫一个在上面.

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