How do I define the boundaries of a map?

Hello!

I just finished importing a map I designed in photoshop to my game project, but the map itself includes areas which cannot be accessed (backgrounds, walls, etc), not to mention the accessible area itself is somewhat round. For importing the map, I used the way described in "How to make a platform game" (By Ashley), so I only had to import one sprite object which contained all of the map pieces. Does anyone know how I can define which parts are accessible?

Create an invisible solid over the spots you dont want the player going to.

Never thought about it that way. How do I do that though?

TheBuob

Depends, If you are using behaviors, you can create an object (No Texture, or set it invisible while ingame) place it where you want the player to not go and give it the Solid Behavior

Should be covered in the tutorial