Question

当我的播放器移动到地图上方或右侧时，似乎没有调用onTouch事件（将NSLog语句放入确认）。地图足够大，当我到达顶部或右边时，您仍然可以稍微看到地图，因为图层会按预期移动，但是当点击任何进一步的内容时，屏幕上最初加载的内容，没有触发事件，而且char是卡住。有什么想法吗？

- (void)setCenterOfScreen:(CGPoint) position {
    CGSize screenSize = [[CCDirector sharedDirector] viewSize];

    int x = MAX(position.x, screenSize.width/2);
    int y = MAX(position.y, screenSize.height/2);

    x = MIN(x, theMap.mapSize.width * theMap.tileSize.width - screenSize.width/2);
    y = MIN(y, theMap.mapSize.height * theMap.tileSize.height - screenSize.height/2);

    CGPoint goodPoint = ccp(x,y);

    CGPoint centerOfScreen = ccp(screenSize.width/2, screenSize.height/2);
    CGPoint difference = ccpSub(centerOfScreen, goodPoint);
    self.position = difference;
}
-(void) touchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{

    CGPoint touchLoc = [touch locationInNode:self];



// NOT CALLED WHEN PLAYER REACHES TOP OR RIGHT OF MAP (INITIAL SCREEN LOAD PART OF MAP) 
      // When clicking any furhter or top on the map, no touch event is fired and character (sprite) doesn't move
        NSLog(@"Touch fired");

    CGPoint playerPos = mainChar.position;
    CGPoint diff = ccpSub(touchLoc, playerPos);

    // Move horizontal or vertical?
    if (abs(diff.x) > abs(diff.y))
    {
        if (diff.x > 0)
        {
            playerPos.x += theMap.tileSize.width;
        }
        else
        {
            playerPos.x -= theMap.tileSize.width;
        }
    }
    else
    {
        if (diff.y > 0)
        {
            playerPos.y += theMap.tileSize.height;

        }
        else
        {
            playerPos.y -= theMap.tileSize.height;

        }
    }

    if (playerPos.x <= (theMap.mapSize.width * theMap.tileSize.width) &&
        playerPos.y <= (theMap.mapSize.height * theMap.tileSize.height) &&
        playerPos.y >= 0 &&
        playerPos.x >= 0)
    {
        mainChar.position = playerPos;
    }
    [self setCenterOfScreen:mainChar.position];
}

Answer 1

这很可能是您的场景的内容大小。当你向右移动玩家时，我相信你正在调用setCenterOfScreen来移动场景（CCScene）？如果我没记错的话，当您向其中添加子项时，场景的内容大小和边界框不会发生变化。如果是这种情况（或者仍然如此），那么您需要将场景的内容大小设置为整个级别（地图）的大小。您还需要确保左下角或地图与（0,0）场景的左下角对齐，以便您的场景的新边界框包含您的所有地图。 / p>

在您设置场景CCLOG后，检查场景的内容大小。如果它不是地图的大小，那么你知道如果你确实通过调用setCenterOfScreen来移动场景就会出现问题。

另一种解决方案是创建添加到场景中的根内容节点，然后将游戏元素添加到该内容节点。这样，触摸就会发生在场景上，但是当你进行动作时，你会移动内容节点，而不是场景。例如：

@implementation YourScene

- (void)onEnter
{
    [super onEnter];

    self.contentNode = [CCNode node];
    [self addChild:self.contentNode];

    CCSprite* bg = ...;
    CCSprite* player = ...;

    [self.contentNode addChild:bg];
    [self.contentNode addChild:player];

    ...
}

- (void)setCenterOfScreen:(CGPoint)position
{
    CGSize screenSize = [[CCDirector sharedDirector] viewSize];

    int x = MAX(position.x, screenSize.width/2);
    int y = MAX(position.y, screenSize.height/2);

    x = MIN(x, theMap.mapSize.width * theMap.tileSize.width - screenSize.width/2);
    y = MIN(y, theMap.mapSize.height * theMap.tileSize.height - screenSize.height/2);

    CGPoint goodPoint = ccp(x,y);

    CGPoint centerOfScreen = ccp(screenSize.width/2, screenSize.height/2);
    CGPoint difference = ccpSub(centerOfScreen, goodPoint);

    self.contentNode.position = ccpAdd(self.contentNode.position, difference);
}

希望这有帮助。

当精灵移出地图的初始部分时，onTouch事件没有被调用？

1 个答案: