SKScene:场景边界

Question

我怎样才能得到场景的边界？

我使用demo进行测试，并以这种方式初始化scene：

GameScene *scene = [GameScene unarchiveFromFile:@"GameScene"];
scene.scaleMode = SKSceneScaleModeAspectFill;

所以，当我点击屏幕时，我会登录：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    for (UITouch *touch in touches) {
        CGPoint location = [touch locationInNode:   self];
        NSLog(@"%f, %f", location.x, location.y);
    }
}

当我按左下键时，我得到大约300-0，而我期望的是0-0。

我怎样才能得到上下左右的界限呢？我找不到像这样的方法：

[scene getBounds]

Scene.frame打印：(0,0,1024,768)不对应！！

Answer 1

您需要将GameScene的大小设置为与其SKView的大小相等。您可以在GameScene的didMoveToView中执行此操作

-(void)didMoveToView:(SKView *)view {
    [super didMoveToView: view];
    self.size = view.bounds.size;
}

或者，您可以在实例化GameScene时设置大小

SKView * skView = (SKView *)self.view;
// ...

GameScene *scene = [GameScene unarchiveFromFile:@"GameScene"];
scene.scaleMode = SKSceneScaleModeAspectFill;
scene.size = skView.bounds.size;

[skView presentScene:scene];

Answer 2

像这样初始化场景：

 GameScene *scene = [GameScene sceneWithSize:skView.bounds.size];
 scene.scaleMode = SKSceneScaleModeAspectFill;

测试坐标如下：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *touch = [touches anyObject];
    CGPoint location = [touch locationInNode:self];

    /* Pressed node */
    SKNode *node = [self nodeAtPoint:location];

    NSLog(@"x - %f; y - %f", location.x, location.y);
}