Time for action – animating matches and collapses

Now for the last bit of logic: the final animations:

1. We'll start with the easy ones:

   function GridAnimations:animateSelected (gem)
       gem:select()
       gem:stopAllActions()
       local rotate = cc.EaseBounceOut:create ( cc.RotateBy:create(0.5, 360) )
       gem:runAction(rotate)
   end

   This rotates a gem; we use this animation when a gem is first selected.

2. Next is the swap animation:

   function GridAnimations:swapGems  (gemOrigin, gemTarget, onComplete)
       gemOrigin:deselect()
      local origin = self.gameLayer.selectedGemPosition
       local target = cc.p(gemTarget:getPositionX(),  gemTarget:getPositionY()) 
      local moveSelected =  cc.EaseBackOut:create(cc.MoveTo:create(0.8, target) )   
       local moveTarget =  cc.EaseBackOut:create(cc.MoveTo:create(0.8, origin) )
       local callback = cc.CallFunc:create(onComplete)
      gemOrigin:runAction(moveSelected)
       gemTarget:runAction (cc.Sequence:create(moveTarget, callback))
   end

   All this does is swap...