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Classic Arcade Game Discussion / what happened to Marp?
« Last post by Simpsons99 on April 06, 2024, 08:00:27 pm »Tried going to marp the last couple of days ... Seems to be some kind of error message .
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In memory of Jeff Harrist |
Somebody should start an Intrepid club. That would be awesome
It's the 'blank' sprite and the code sometimes uses it as 'display nothing'. Notably the oil fire before its lit but also in DK's sprites. The game reserves 10 sprites for DK, but not all 10 are always needed. When DK is in a pose that has fewer sprites, the extra sprite slots still display but using 'blank' and they have junk X/Y coordinates so they display somewhere off in space. When DK moves, the junk coordinates also move along with DK.
And I noticed something that I cannot explain. These two pixels are also seen at the top left of the rivets stage, a little between the umbrella and the top left rivet. I do not know why it is there. I guess that that is the same sprite that is also used above the oil can. But why is it there? And then when playing the pies board I see those pixels again, about the same spot, but they move left and right just like DK does. It looks like that that sprite (originally a blank one) is somehow drawn as part of DK? But why?