Pathing

var pathing_rotation = function(angle, point,width,height) {
    var pointX = point[0], pointY = point[1], originX = (width/2), originY = (height/2);
        angle = angle * Math.PI / 180.0;
        return [
            Math.cos(angle) * (pointX-originX) - Math.sin(angle) * (pointY-originY) + originX,
            Math.sin(angle) * (pointX-originX) + Math.cos(angle) * (pointY-originY) + originY
        ];
    },
    rotated_flipPaths = function(shapePath) {
        var i,newPath,angle,xOffset,yOffset,maxX,minX,maxY,minY,spinPath,objectWidth,objectHeight,objectTop,objectLeft;
        newPath = []; 
        for(i = 0; i < shapePath.path.length; i = i + 1) {
            newPath.push([
                shapePath.fliph ? shapePath.width - shapePath.path[i][0] : shapePath.path[i][0],
                shapePath.flipv ? shapePath.height - shapePath.path[i][1] : shapePath.path[i][1]
            ]);
        }
        angle = shapePath.rotation || 0;
        xOffset = shapePath.left - (shapePath.width / 2) || 0;
        yOffset = shapePath.top - (shapePath.height / 2) || 0;
        maxX = 0;
        minX = false;
        maxY = 0;
        minY = false;
        spinPath = [];
        for(i = 0; i < newPath.length; i = i + 1) {
            spinPath.push([newPath[i][0], newPath[i][1]]);
            spinPath[i] = pathing_rotation(angle, spinPath[i],shapePath.width,shapePath.height);
            if(spinPath[i][0] > maxX) {maxX = spinPath[i][0]; }
            if(minX === false || Number(spinPath[i][0]) < Number(minX)) {minX = spinPath[i][0]; }
            if(spinPath[i][1] > maxY) {maxY = spinPath[i][1]; }
            if(minY === false || spinPath[i][1] < minY) {minY = spinPath[i][1]; }
        }
        objectWidth = maxX - minX;
        objectHeight = maxY - minY;
        objectTop = minY + (objectHeight/2); 
        objectLeft = minX + (objectWidth/2);
        for(i = 0; i < spinPath.length; i = i + 1) {
            spinPath[i][0] = spinPath[i][0] - minX;
            spinPath[i][1] = spinPath[i][1] - minY;
        }
        objectTop = objectTop + yOffset; 
        objectLeft = objectLeft + xOffset;
        return {
            left: objectLeft, 
            top: objectTop, 
            width: objectWidth, 
            height: objectHeight, 
            rotation: angle,
            fliph: shapePath.fliph,
            flipv: shapePath.flipv,
            path: spinPath
        };
    },
    remove_paths = function(area) {
        _.each(findObjs({type: 'path', controlledby: area.key }), function(obj) { 
            obj.remove(); 
        });
    }