rendering

[neat obsidian]

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[weary maple]

backbuffer_ is sdl_texture

damaged_buffer is a set of ints

[violet sun]

you're probably experiencing z-fighting from your description, although I haven't really looked at the code

https://en.wikipedia.org/wiki/Z-fighting

[weary maple]

https://pastebin.com/WDkx7tFN
when i enter a symbol it changes like on the screenshot

although those lines arent supposed to be redrawn or touched in any way at all

[weary maple]

how can i fix it

https://pastebin.com/Fr02Jwb3

now everytning almost works
but i have no fucking idea why the fuck line 2 isnt fully drawn

funny thing it happens only when second line is printed first time
like if i do "clear" and then try again it works fine

[neat obsidian]

@weary maple

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[weary maple]

!solved