float prevX = X;
        float prevZ = Z;
        boolean isMoved = vInput != 0;

        X -= -Math.sin(rad) * (vInput * MOVEMENT_SPEED);
        Z -= Math.cos(rad) * (vInput * MOVEMENT_SPEED);

        if(collideTest())
        {
            X = prevX;
            Z = prevZ;

            isMoved = false;
        }

public boolean collideTest(int x, int y, int size)
    {
        final int collideMargin = 64;

        for(int i = 0; i < worldHeight; i++)
        {
            for(int j = 0; j < worldWidth; j++)
            {
                if(tiles[i * worldWidth + j] != 0 &&
                        aabbTest(x, y, (j * CUBE_SIZE) - CUBE_SIZE, i * CUBE_SIZE, CUBE_SIZE + collideMargin, CUBE_SIZE + collideMargin))
                {
                    return true;
                }
            }
        }

        return false;
    }