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'use strict'; | |
define(['phaser'], function(Phaser) { | |
function Gesture(game) { | |
this.game = game; | |
this.swipeDispatched = false; | |
this.holdDispatched = false; | |
this.isTouching = false; | |
this.isHolding = false; | |
this.onSwipe = new Phaser.Signal(); | |
this.onTap = new Phaser.Signal(); | |
this.onHold = new Phaser.Signal(); | |
} | |
Gesture.prototype.update = function() { | |
var distance = Phaser.Point.distance(this.game.input.activePointer.position, this.game.input.activePointer.positionDown); | |
var duration = this.game.input.activePointer.duration; | |
this.updateSwipe(distance, duration); | |
this.updateTouch(distance, duration); | |
}; | |
Gesture.prototype.updateSwipe = function(distance, duration) { | |
if (duration === -1) { | |
this.swipeDispatched = false; | |
} else if (!this.swipeDispatched && distance > 150 && duration > 100 && duration < Gesture.TIMES.SWIPE) { | |
var positionDown = this.game.input.activePointer.positionDown; | |
this.onSwipe.dispatch(this, positionDown); | |
this.swipeDispatched = true; | |
} | |
}; | |
Gesture.prototype.updateTouch = function(distance, duration) { | |
var positionDown = this.game.input.activePointer.positionDown; | |
if (duration === -1) { | |
if (this.isTouching) { | |
this.onTap.dispatch(this, positionDown); | |
} | |
this.isTouching = false; | |
this.isHolding = false; | |
this.holdDispatched = false; | |
} else if (distance < 10) { | |
if (duration < Gesture.TIMES.HOLD) { | |
this.isTouching = true; | |
} else { | |
this.isTouching = false; | |
this.isHolding = true; | |
if (!this.holdDispatched) { | |
this.holdDispatched = true; | |
this.onHold.dispatch(this, positionDown); | |
} | |
} | |
} else { | |
this.isTouching = false; | |
this.isHolding = false; | |
} | |
}; | |
Gesture.SWIPE = 0; | |
Gesture.TAP = 1; | |
Gesture.HOLD = 2; | |
Gesture.TIMES = { | |
HOLD: 150, | |
SWIPE: 250 | |
}; | |
return Gesture; | |
}); |
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