New version is here! Added features are below:
-Enemies appeared!
-They are can be beaten by the beam!
-Objects and map are now have outlines!

Thanks for everyone helped me in Reddit and Discord!

I made basic gun system and now I'm working on "Room" system.
It's used in order to identify where player is.
For example, Room 1 is upper left corner, 2 is upper right, 3 is bottom left, and 4 is bottom right in this cartridge.
And I prepared "rmove" variable that turns true while camera moves.
"rmove=true" stops player_update while camera moves, just like camera in megaman, zelda, and so on.
But a problem happened. The rmove works well about vertical camera move(=Room 1 to 3, or 2 to 4), but totally not about horizontal camera move.
I copied codes from horizontal to vertical, but only vertical works. I could'nt find where the wrong is, so if anyone can tell me why, please leave some comments.

platformer