How to restrict the drag movement of a sprite to both X & Y axis.

Article by Richard Davey. Posted on 20th Apr 2016.   @phaser_

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From the Burnmind blog: "Phaser has a built-in function (i.e. setDragLock) that restricts a sprite’s drag movement only on a given axis (i.e. either horizontal or vertical). There are cases though that you want to allow a sprite to move both horizontally and vertically, but not allow movement to any other directions.

I ran into a situation like that a few days ago, while building -just for fun- a match-3 type game (like Bejeweled and Candy Crush Saga). Although I ended up making the tiles clickable instead of draggable, I managed to find a workaround that would restrict movement to both axis."

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