ios - touch moking sprite by tap not swipe swift -


i have block in code sprite move if tap screen. have behaviour when swipe or down instead. here code 

import spritekit import uikit  class gamescene: skscene {     var porker:porker!     var touchlocation = cgfloat()     var gameover = false       override func didmovetoview(view: skview) {         addbg()         addpig()     }      func addbg() {         let bg = skspritenode(imagenamed: "bg");         addchild(bg)     }      func addpig() {         let pig = skspritenode(imagenamed: "pig")         porker = porker(guy:pig)         addchild(pig)     }      override func touchesbegan(touches: set<uitouch>, withevent event: uievent?) {           touch: anyobject in touches{             if !gameover {                 touchlocation = (touch.locationinview(self.view!).y * -1) + (self.size.height/2)             }          }         let moveaction = skaction.movetoy(touchlocation, duration: 0.5)         moveaction.timingmode = skactiontimingmode.easeout         porker.guy.runaction(moveaction)     } }       func update(currenttime: cftimeinterval) {         /* called before each frame rendered */     }

replace touchesbegan code:

// store start touch position let ytouchcurrentposition = 0.0 let ytouchdistance = 0.0 let ytouchstartposition = 0.0 override func touchesbegan(touches: set<uitouch>, withevent event: uievent?) {     touch in touches {         ytouchstartposition = touch.locationinnode(self).y     } }  // calculate distance of touch movement override func touchesmoved(touches: set<uitouch>, withevent event: uievent?) {     touch in touches {         ytouchcurrentposition = touch.locationinnode(self).y         ytouchdistance = ytouchstartposition - ytouchcurrentposition     } }  // reset movement states , move sprite override func touchesended(touches: set<uitouch>, withevent event: uievent?) {     ytouchcurrentposition = 0.0     ytouchdistance = 0.0     ytouchstartposition = 0.0      let moveaction = skaction.movetoy(cgpoint(porker.guy.location.x, porker.guy.location.y + ytouchdistance), duration: 0.5)     moveaction.timingmode = skactiontimingmode.easeout     porker.guy.runaction(moveaction) }

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