Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Objects Methods Return Values

Posted by ryota kurazono
ryota kurazono
Courses Plus Student 4,248 Points

error CS1001

when I compile this code, I got error below.

Map.cs(14,23): error CS0246: The type or namespace name Point' could not be found. Are you missingTreehoseDefense' using directive?

I checked all of this code, but I still can't find the bug, so if someone know the solution, please help me!

★Here is Map.cs

namespace TreehouseDefense { class Map { public readonly int Width; public readonly int Height;

public Map(int width, int height)
 {
   Width = width;
   Height = height;
 }

public bool OnMap(Point, point)
{
  return point.x >= 0 && point.x < width && point.y >= 0 && 
         point.y < height;
}

} }

★Here is Game.cs

using System;

namespace TreehouseDefense { class Game { public static void Main() { Map map = new Map(8, 5);

        Point point = new Point(4, 2);
        bool isOnMap = map.OnMap(point);
        Console.WriteLine(isOnMap);

        point = new Point(8, 5);
        isOnMap = map.OnMap(point);
        Console.WriteLine(isOnMap);
    }
}

}

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

It looks like you manged to get a copy of the same damaged code as Denzel Archie. Here are the issues I pointed out to him in Map.cs:

  • in the declaration of OnMap there's a stray comma between the parameter type and the name
  • the fields inside point are "X" and "Y" (upper case) but the code has them in lower case
  • the local field "Width" (capital "W") is spelled in the code as "width" (lower case "w")
  • the local field "Height" (capital "H") is spelled in the code as "height" (lower case "h")

To enable a more thorough analysis and specific answer, make a snapshot of your workspace and post the link to it here.