I have a game nearing completion and I need help with a design problem. When I first started considering an adventure game I looked at other peoples efforts. Now I am remembering that the idea of using layout borders was not completely my idea. I think it is okay but I have a question to ask. My game is a tileset adventure type game. There are slightly thick layout borders organizing the screen parts. The actual useage should be of my own design, What I am wondering is if the idea of layout borders is the property of someone else. Do they own the idea of layout borders? It seems to me that this is an obvious common approach for tileset games. Is common layout allowed because it is common? I looked online but couldn't find the comparison game from approximately twelve years ago. Is it okay to use a similar idea of layout borders of my own layout?
Thank you for your time,
Josheir