我已经开始做一个小的
swift / spritekit项目来教我自己的游戏开发.
它以等距地图开始,我设法绘制.
但是我在地图的不同瓷砖上获得精确的触摸位置时遇到了麻烦.
它有效,但有点不合适,似乎不一致.
它以等距地图开始,我设法绘制.
但是我在地图的不同瓷砖上获得精确的触摸位置时遇到了麻烦.
它有效,但有点不合适,似乎不一致.
这是我的功能：
class PlayScene: SKScene {
let map = SKNode()
override func didMoveToView(view: SKView) {
let origin = view.frame.origin
let mapOrigin = CGPointMake(origin.x + self.frame.width / 4,origin.y - self.frame.height / 4)
let mapConfig: Int[][] =
[[0,1,0],[0,[2,2,2],0]]
drawMap(mapConfig,mapOrigin: mapOrigin)
}
用：
func drawMap(mapConfig:Int[][],mapOrigin:CGPoint)
{
let tileHeight:CGFloat = 25.5
let numColumns:Int = 8
let numRows:Int = 8
var position = mapOrigin
var column: Int = 0
var row: Int = 0
for column = 0; column < numColumns; column++
{
for row = 0; row < numRows; row++
{
position.x = mapOrigin.x + CGFloat(column) * tileHeight
position.y = mapOrigin.y + CGFloat(row) * tileHeight
let isoPosition = twoDToIso(position)
placeTile(isoPosition,mapConfig: mapConfig[row][column])
}
}
self.addChild(map)
}
func placeTile(position:CGPoint,mapConfig:Int)
{
switch mapConfig
{
case 0:
let sprite = SKSpriteNode(imageNamed:"grassTile")
sprite.position = position
sprite.setScale(0.1)
sprite.name = "\(position)"
self.map.addChild(sprite)
case 1:
let sprite = SKSpriteNode(imageNamed:"roadTile")
sprite.position = position
sprite.setScale(0.1)
sprite.name = "\(position)"
self.map.addChild(sprite)
default:
let sprite = SKSpriteNode(imageNamed:"roadTileLTR")
sprite.position = position
sprite.setScale(0.1)
sprite.name = "\(position)"
self.map.addChild(sprite)
}
}
然后我想隐藏我触摸的瓷砖(用于测试)：
override func touchesBegan(touches: NSSet,withEvent event: UIEvent)
{
for touch: AnyObject in touches
{
let locationNode = touch.locationInNode(self)
nodeAtPoint(locationNode).hidden = true
}
}
但它并不总是隐藏正确的瓷砖.
那我该怎么解决呢？我的代码是否根本错误(可能)？或者我需要以某种方式将位置转换为iso坐标？或者玩瓷砖位面罩？
无论如何,谢谢你的帮助！
解决方法
我在等轴测图中遇到了类似的问题.
问题是您单击的节点大于显示的节点(它具有透明部分).有关该问题的更好解释,请参阅my question here.
1.在tile的边缘之后创建一个CGPathRef(tileSize是纹理的大小).此代码适用于常规等距切片,而不是六边形,但想法是相同的.
// ObjC
-(CGPathRef)createTextureFrame:(CGSize)tileSize
{
CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path,NULL,-(self.tileSize.height / 2));
CGPathAddLineToPoint(path,(self.tileSize.width / 2),0);
CGPathAddLineToPoint(path,(self.tileSize.height / 2));
CGPathAddLineToPoint(path,-(self.tileSize.width / 2),0);
CGPathCloseSubpath(path);
return path;
}
// Swift
func createTextureFrame(tileSize:CGSize) -> CGPathRef {
CGMutablePathRef path = CGPathCreateMutable()
CGPathMoveToPoint(path,nil,-(self.tileSize.height / 2))
CGPathAddLineToPoint(path,0)
CGPathAddLineToPoint(path,(self.tileSize.height / 2))
CGPathAddLineToPoint(path,0)
CGPathCloseSubpath(path)
return path
}
2.创建一个函数,检查给定的点是否在CGPathRef(textureFrame)中.
// ObjC
-(BOOL)isPointOnNode:(CGPoint)point
{
return CGPathContainsPoint(textureFrame,point,YES);
}
// Swift
func isPointOnNode(point:CGPoint) -> Bool {
return CGPathContainsPoint(textureFrame,YES)
}
3.对于每个触摸的节点,检查我们所在的textureFrame.
// ObjC
UITouch *touch = [touches anyObject];
NSArray *nodes = [self nodesAtPoint:[touch locationInNode:self]];
for (SKNode *node in nodes)
{
CGPoint locationInNode = [touch locationInNode:node];
if ([node isPointOnNode:locationInNode])
{
node.hidden = YES;
}
}
// Swift
var touch = touches.anyObject() as UITouch
var nodes = self.nodesAtPoint(touch.locationInNode(self))
for node in nodes as [SKNode] {
var locationInNode = touch.locationInNode(node)
if node.isPointOnNode() {
node.hidden = true
}
}
