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Forum Index : Microcontroller and PC projects : MMBasic: Knightmare game, sprite artifacts and xinput

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LeoNicolas

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Joined: 07/10/2020
Location: Canada
Posts: 479
Posted: 04:51pm 25 Feb 2024
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Peter, maybe you can help me to understand this issue.

I think I found the problem that generated artifacts while playing the game. It only happens if I am playing it with the gamepad. On pressing A to fire, I was creating the shot sprite from inside the handler, the sub called by the "gamepad on" command, which I think was creating the artifacts. The artifacts issues disappeared after moving the sprite creation to the game's main loop, now being the handler only responsible for setting a variable that indicates to the main loop to create the sprite.

Could it be caused by a race condition between two threads in the MMBasic interpreter? Does it make sense to you?
 
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