gistfile1.txt

var CollisionDetection = (function() {

    function CollisionDetection() {

    }

    CollisionDetection.checkCollision = function(shapeA, shapeB) {
        var vX = (shapeA.x + (shapeA.width/2)) - (shapeB.x + (shapeB.width / 2));
        var vY = (shapeA.y + (shapeA.height/2)) - (shapeB.y + (shapeB.height / 2));

        var hWidths = (shapeA.width/2) + (shapeB.width/2);
        var hHeights = (shapeA.height/2) + (shapeB.height/2);

        var colDir = "";

        if(Math.abs(vX) < hWidths && Math.abs(vY) < hHeights) {
            //Botsing langs de zijkanten
            var oX = hWidths - Math.abs(vX);
            var oY = hHeights - Math.abs(vY);

            if(oX >= oY) {
                //top bottom
                if(vY > 0) {
                    colDir = "t";
                } else {
                    colDir = "b";
                }
            } else {
                //left right
                if(vX > 0) {
                    colDir = "l";
                } else {
                    colDir = "r";
                }
            }

            console.log(colDir);
        }
    }

    return CollisionDetection;

})();