Phaser.Component.Delta = function (){ 
} 
; 
Phaser.Component.Delta.prototype = { 
deltaX: { 
get: function (){ 
return this.world.x - this.previousPosition.x; 
} 
}
,
deltaY: { 
get: function (){ 
return this.world.y - this.previousPosition.y; 
} 
}
,
deltaZ: { 
get: function (){ 
return this.rotation - this.previousRotation; 
} 
}
}
;