MAMEWorld Forums - EmuChat - Re: Galaga and Galaxian Text Positioning

Games have a 'playfield' - which is the size of the physical area to which the software (game) can draw to - E.g. 320x240. The software will draw to positions relative to the playfield. The positioning or stretching of the monitor is irrelevant. The game cannot know how you have set the pots on the monitor. If you crank you brightness right up, you will usually see the true actual playfield area appear as a slightly darker area. Sprite misplacement is a common issue and I have seen this in several games. For example, Dig Dug (a few years ago now), and more recently Turtles. This one is easy to spot. Note at the start of the game, when the baby turtles walk to the left on the roof, their feet are actually 1 pixel into the roof itself. They should be actually walking on top of the roof. It is also apparent during gameplay - I simply haven't bother to report this. So sprite placement is a tricky thing to get right as separate hardware maps the sprites onto the playfield.

I have a Galaxian PCB so will check the relative position of the text tonight and let you know.

Kind Regards

God, I miss those dark, musty arcades ....