I''m trying to make a level editor such as Quoole or Worldcraft. Is there anything out there on the web that has something that could help me? I''d really like some easy to learn from C++ source code of a level editor(NOT A DOS ONE OR JET3D OR GENESIS3D(Jet3d is a mess and uses C not C++)). If anyone could help at all please reply.

You can just go and get QIII radiant source code.

ftp.idsoftware.com

look for tools source in quake 3. You have the full code to the editor

Have you even seen any id Software source code? They can make some cool games, but they''ve got some of the worst coding habits I''ve ever seen.