所以这段代码正在移动我的块（UIImages）很好，但是，当我移动某个彩色块（我们说明亮的绿色块）超过匹配的亮绿色圆圈时，没有任何反应直到我开始移动另一个块，然后它最终识别出前一个移动是一个匹配。我是否在功能的错误位置进行了匹配检测（以下）？
if (100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) &&
myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor
...
@IBAction func handlePan(_ recognizer: UIPanGestureRecognizer) {
let translation = recognizer.translation(in: self.view)
let objectDragging = recognizer.view?.tag
let pos1 = myBlocks[objectDragging!].center
let pos2 = myCircles[myBlocks[objectDragging!].tag].center
if (recognizer.state == UIGestureRecognizerState.began || recognizer.state == UIGestureRecognizerState.changed) && ((100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) && myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor) {
print("match")
myBlocks[objectDragging!].isHidden = true
myCircles[myBlocks[objectDragging!].tag].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
print(objectDragging ?? 20)
//print(myBlocks[objectDragging!])
print("the tag of the object your touching is \(myBlocks[objectDragging!])")
}
else if recognizer.state == UIGestureRecognizerState.ended {
if (100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) && myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor {
print("match")
myBlocks[objectDragging!].isHidden = true
myCircles[myBlocks[objectDragging!].tag].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
}
}
else {
if let view = recognizer.view {
view.center = CGPoint(x:view.center.x + translation.x,
y:view.center.y + translation.y)
}
recognizer.setTranslation(CGPoint.zero, in: self.view)
//if object matches object in recognizer
}
}
编辑＆amp;行为GIF 1和GIF 2： 请注意第一个我如何进行匹配，一旦移动下一个块，它就会记录该匹配。但是，在第二个gif中你会注意到，如果你在比赛后移动的棋子显示了它的圆圈，那么它似乎只能注册比赛。我的意思是我做了比赛，然后移了几个街区，什么都没做，直到我移动那个暗红色的那个（通过移动绿色块来揭示谁的圆圈）。所以它似乎只在匹配之后匹配，并且另一个块具有它显示的相应圆圈被移动。很奇怪。
@IBAction func handlePan(_ recognizer: UIPanGestureRecognizer) {
let translation = recognizer.translation(in: self.view)
let objectDragging = recognizer.view?.tag
let pos1 = myBlocks[objectDragging!].center
let pos2 = myCircles[myBlocks[objectDragging!].tag].center
switch(recognizer.state) {
case .began:
if ((100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) && myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor) {
myBlocks[objectDragging!].isHidden = true
myCircles[myBlocks[objectDragging!].tag].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
print(".began")
}
case .changed:
if ((100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) && myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor) {
myBlocks[objectDragging!].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 0.0)
myCircles[myBlocks[objectDragging!].tag].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
print(".changed")
}
case .ended:
if ((100 / 2 > sqrt((pos1.x - pos2.x) * (pos1.x - pos2.x) + (pos1.y - pos2.y) * (pos1.y - pos2.y))) && myBlocks[objectDragging!].tintColor == myCircles[myBlocks[objectDragging!].tag].tintColor) {
myBlocks[objectDragging!].isHidden = true
myCircles[myBlocks[objectDragging!].tag].tintColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1.0)
print(".ended")
}
default:
break
}
if let view = recognizer.view {
view.center = CGPoint(x:view.center.x + translation.x,
y:view.center.y + translation.y)
}
recognizer.setTranslation(CGPoint.zero, in: self.view)
}