Ios 触摸移动背景图像

当前情况

查看加载，加载背景图像 将

十字线布尔值显示为false

-(void)didMoveToView:(SKView *)view {
    /* Setup your scene here */
    self.anchorPoint = CGPointMake(0.5, 0.5);
    self.backgroundColor = [SKColor colorWithRed:0.15 green:0.15 blue:0.3 alpha:1.0];
    //Add background
    NSString *bundle = [[NSBundle mainBundle] pathForResource:@"backgroundTemp" ofType:@"png"];
    UIImage *image = [[UIImage alloc] initWithContentsOfFile:bundle];
    SKTexture *texture = [SKTexture textureWithImage:image];
    backgroundImage = [SKSpriteNode spriteNodeWithTexture:texture];
    backgroundImage.size = CGSizeMake(self.frame.size.width, self.frame.size.height);
    backgroundImage.position = CGPointMake(0.5, 0.5);
    backgroundImage.zPosition = 0;
    [self addChild:backgroundImage];
    //END Add Background

    removeArray = [[NSMutableArray alloc] init];
    reticleShow = false;

}

因此，在加载背景图像后，显示。唯一的其他选项是按下屏幕以放大
背景图像
，并加载
十字线
图像

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    /* Called when a touch begins */
    if (reticleShow == false) {
        //Add Reticle
        NSString *bundle = [[NSBundle mainBundle] pathForResource:@"reticle_001" ofType:@"png"];
        UIImage *image = [[UIImage alloc] initWithContentsOfFile:bundle];
        SKTexture *texture = [SKTexture textureWithImage:image];
        SKSpriteNode *reticle = [SKSpriteNode spriteNodeWithTexture:texture];
        reticle.zPosition = 1;
        reticle.size = CGSizeMake(self.frame.size.width, self.frame.size.height);
        reticle.position = CGPointMake(0.5, 0.5);
        [self addChild:reticle];

        [removeArray addObject:reticle];
        //End Add Reticle

        //Enlarge background
        backgroundImage.size = CGSizeMake(self.frame.size.width*3, self.frame.size.height*3);
        //End Enlarge background

        reticleShow = true;
    } else {
//        //Remove reticle
//        backgroundImage.size = CGSizeMake(self.frame.size.width, self.frame.size.height);
//        [self removeChildrenInArray:removeArray];
//        reticleShow = false;
//        //end remove reticle

        //enable drag

        //end enable drag
    }
}

现在，它提供了放大，布尔值可以防止进一步添加精灵，以及提供十字线图像

现在，在这个加载之后。或者已经进行了首次印刷。我现在希望能够拖动背景。i、 e移动背景并使十字线居中

所以我做了这个

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    for (UITouch *touch in touches) {
        CGPoint location = [touch locationInNode:self];
        SKNode *node = [self nodeAtPoint:location];

        if ([node.name isEqualToString:backgroundImage]) { <--- ERROR HERE sksprite node to type nsstring

            CGPoint previousLocation = [touch previousLocationInNode:self];
            float diff = location.y - previousLocation.y;
            CGPoint newPosition = CGPointMake(node.position.x, node.position.y +diff);

            if (newPosition.y > 230) {
                newPosition.y = 230;
            }
            node.position = newPosition;
        }
    }
}

-（无效）触摸移动：（NSSet*）触摸事件：（UIEvent*）事件{
用于（UITouch*触摸屏）{
CGPoint位置=[触摸位置Innode:self]；
SKNode*node=[自身节点点：位置]；
if（[node.name IsequalString:backgroundImage]）{230）{
新位置y=230；
}
node.position=newPosition；
}
}
}

三个问题

如何在较小的z索引上拖动图像？i、 拖动背景而不是十字线

放大后如何移动背景图像

如何传递sknode&nsstring错误？backgroundImage.name=@“backgroundImage”

问题一
拖动较小的Z索引

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    for (UITouch *touch in touches) {
        CGPoint location = [touch locationInNode:self];
        SKNode *node = [backgroundImage nodeAtPoint:location];

        if ([node.name isEqualToString:@"backgroundImage"]) {

            CGPoint previousLocation = [touch previousLocationInNode:self];
            float ydiff = location.y - previousLocation.y;
            float xdiff = location.x - previousLocation.x;
            CGPoint newPosition = CGPointMake(node.position.x - xdiff, node.position.y - ydiff);

            if (newPosition.y > 230) {
                newPosition.y = 230;
            }
            node.position = newPosition;
        }
    }
}

插入这个
retile.userInteractionEnabled=NO

问题二

放大不会影响它

问题三

为检测命名SkSpriteNode

backgroundImage.name=@“backgroundImage”
3-SKNode具有名称属性。你需要设置它。例如，myNode.name=@“myName”；然后使用if（[myNode.name isEqualToString:@“myName”]）@sangony-Excellent检查它，这回答了我的一个问题。感谢you@sangony现在我可以在z索引0上移动背景，但是，如果十字线z索引1被覆盖，我无法移动背景图像。如果节点的z位置高于背景，则不需要用户交互，例如触摸事件，请将其userInteractionEnabled属性设置为否。