Adventure Graphics

[Bill Lange]

In Adventure, the rooms that are left and right of the room just below the golden castle have thin lines as borders while the other rooms have regular walls. I am assuming that those thin lines are missles one pixel wide and max pixels tall. Is this just for the easter egg or for another reason?

[Lost Monkey]

It could also be because the playfield wouldn't have been symmetrical with a "wall" drawn in on one side. Because of the way the TIA draws the playfield it would have required some timing trickery by the for an asymmetrical playfield.

[Joel D. Park]

Your absolutely correct about the Missile Thin lines. I'm currently breaking down Adventure and adding Labels and stuff.

 

It looks like the biggest reason the thin lines were used, is so they could be added and removed at will, the entire mapping system is based off flags that signal what map is next and if it has a think wall on the left or right. It allows many of the screens to be re-used.