SKSpriteNode 按钮在松开后卡住（iOS）。需要建议

Question

所以...我正在为 iOS 开发这款类似马里奥的小型游戏，但遇到了一个我似乎无法解决的问题。

当使用我的控件时（见屏幕截图），它们有时会“卡住”，iOS 设备没有注意到我松开按钮。这会导致玩家在您松开按钮后继续朝某个方向移动。

编辑：当我同时单击两个按钮时似乎发生了故障。

希望有人能够发现我在以下代码中的不同之处：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (UITouch *touch in touches) {
        CGPoint touchLocation = [touch locationInNode:self];
        [self touchStateChanged:touchLocation buttonState:YES];
    }
}

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (UITouch *touch in touches) {
        CGPoint prevTouchLocation = [touch previousLocationInNode:self];
        [self touchStateChanged:prevTouchLocation buttonState:NO];
        CGPoint touchLocation = [touch locationInNode:self];
        [self touchStateChanged:touchLocation buttonState:YES];
    }   
}

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (UITouch *touch in touches) {
        // Some other logic... {...}

        [self touchStateChanged:touchLocation buttonState:NO];
    }
}

-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (UITouch *touch in touches) {
        CGPoint touchLocation = [touch locationInNode:self];
        [self touchStateChanged:touchLocation buttonState:NO];
    }
}

-(void)touchStateChanged:(CGPoint)location buttonState:(BOOL)state
{
    SKNode *n = [self nodeAtPoint:location];

    if ([n.name isEqualToString:@"LeftMove"]) {
        self.player.moveLeft = state;
    }

    else if ([n.name isEqualToString:@"RightMove"]) {
        self.player.moveRight = state;
    }
    else if ([n.name isEqualToString:@"Jump"]) {
        self.player.didJump = state;
    }  
} 

显示按钮的屏幕截图：

谢谢:-)

---

部分解决了...

当前解决方案：

添加了一个名为_touchEvent 类型为UIEvent 的实例变量，并将以下行添加到touchesEnded：

_touchEvent = event;

将以下代码添加到我的update 方法中：

if (_touchEvent && (int)[[_touchEvent allTouches]count] == 0) {
    self.player.moveLeft = NO;
    self.player.moveRight = NO;
    self.player.didJump = NO;
}

if (_touchEvent && (int)[[_touchEvent allTouches]count] == 1) {
    for (UITouch *touch in [_touchEvent allTouches]) {
        SKNode *n = [self nodeAtPoint:[touch locationInNode:self]];
        if ([n.name isEqualToString:@"Jump"]) {
            self.player.moveLeft = NO;
            self.player.moveRight = NO;
        }
    }
}

Answer 1

我认为问题在于触摸的位置（在-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event 方法中）在任何节点之外。

尝试实现类似的东西

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
    for (SKNode *node in yourButtonsArray) {
        // Some other logic... {...}

        [node setState:NO];
    }
}

或者你应该看看来自 KoboldKit 框架的 KKButtonBehaviour。