ios - Asynchronous moving of 2 nodes sprite kit -


i have 2 nodes, want grab 2 fingers asynchronously on ipad. that's code moving:

var ninjamoving = false var monstermoving = false  var loc = cgpoint(x: 0.0, y: 0.0) var prevloc = cgpoint(x: 0.0, y: 0.0)  override func touchesbegan(touches: set<nsobject>, withevent event: uievent) {     touch in (touches as! set<uitouch>) {         let location = touch.locationinnode(self)         if !self.nodesatpoint(location).isempty && (self.nodeatpoint(location).physicsbody?.categorybitmask == 1 || self.nodeatpoint(location).physicsbody?.categorybitmask == 3) {             if self.nodeatpoint(location).physicsbody?.categorybitmask == 1 {                 ninjamoving = true             }             else if self.nodeatpoint(location).physicsbody?.categorybitmask == 3 {                 monstermoving = true             }         }     } }  override func touchesmoved(touches: set<nsobject>, withevent event: uievent) {     touch in touches as! set<uitouch> {         loc = touch.locationinnode(self)         prevloc = touch.previouslocationinnode(self)     } }  override func touchesended(touches: set<nsobject>, withevent event: uievent) {     touch in touches as! set<uitouch> {         let location = touch.locationinnode(self)         if self.nodeatpoint(prevloc).physicsbody?.categorybitmask == 1 {             ninjamoving = false         }         if self.nodeatpoint(prevloc).physicsbody?.categorybitmask == 3 {             monstermoving = false         }     } }  override func update(currenttime: cftimeinterval) {     if ninjamoving {         var x = playerninja.position.x + (loc.x - prevloc.x)         var y = playerninja.position.y + (loc.y - prevloc.y)         x = max(x, playerninja.size.width / 2)         x = min(x, size.width / 2 - playerninja.size.width)         y = max(y, playerninja.size.height / 2)         y = min(y, size.height - playerninja.size.height / 2)          playerninja.position = cgpointmake(x, y)     }     if monstermoving {         var x = playermonster.position.x + (loc.x - prevloc.x)         var y = playermonster.position.y + (loc.y - prevloc.y)         x = max(x, self.size.width / 2 + playermonster.size.width)         x = min(x, size.width - playermonster.size.width / 2)         y = max(y, playermonster.size.height / 2)         y = min(y, size.height - playermonster.size.height / 2)          playermonster.position = cgpointmake(x, y)      } }

but can't move 1 of sprites left, , right @ same time. there way in sprite kit?

please check answer question: multitouch in spritekit

the idea should track individual touches separately.


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