/* coords: unrotated world coord, rotation: quantify to 90, start: uncentered world coords for structure start point, size: structure size */
    public static ChunkCoordinates rotateNew(ChunkCoordinates coords, int direction, Vec3 start, Vec3 size) {

        System.out.println("direction: " + direction);

        //center is not offsetted
        //coords should be offset 0.5 before rotate math, guarantees no strange offset issues, flooring cleans it up afterwards perfectly

        double rotation = (direction * Math.PI/2D);
        double centerX = start.xCoord+(size.xCoord/2D);
        double centerZ = start.zCoord+(size.zCoord/2D);
        double vecX = (coords.posX+0.5D) - centerX;
        double vecZ = (coords.posZ+0.5D) - centerZ;

        Vec3 vec = Vec3.createVectorHelper(vecX, 0, vecZ);
        vec.rotateAroundY((float)rotation);
        return new ChunkCoordinates((int)Math.floor(start.xCoord+vec.xCoord), coords.posY, (int)Math.floor(start.zCoord+vec.zCoord));
    }