On 13/06/20 10:40 PM, Bischoop wrote:
I'm playing with pygame, https://bpa.st/6GOQ
Not sure what is wrong here that object moves but draws another
surface.
(not sure how many will click on a link like that - best to copy-paste
code into (text) email message)
The most usual reason for 'leaving' an old version of a surface visible,
when a new frame is drawn by the game-loop, is that there is no code to
'wipe' the old before painting the new 'on top'.
Either:
1 keep track of the position of each moving surface and before
calculating its new position (and adding it to the background), execute
appropriate code to wipe it (and restore whatever was 'underneath').
2 clear the entire display, and build it again from 'background' to
'foreground'. (takes longer but is 'guaranteed')
--
Regards =dn
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