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Cart #picar_io-2 | 2025-04-21 | Code ▽ | Embed ▽ | License: CC4-BY-NC-SA
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A clone of the popular agar.io for Pico8, created on a rainy Saturday morning for fun.

Controls

Arrows to move in the desired direction.

Future updates

Several upgrades planned, coming soon

  • improved performance for larger maps and number of enemies
  • X to shoot/O to splice
  • improved bot AI to chase/escape

Feel free to leave your feedback and suggestions!

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2

I think I won 😄
1

Looking forward to the splice ability!
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I think I may have messed something up...
I was previously at around 12k, somewhere past 10k at least and this randomly happened. All of my size disappeared and I became extremely tiny, I'm not extremely sure but it may have been the size of a pixel

@Waterwool that happended because of overflow if you grow more than ~32k. I've now fixed this and the game is won at 30k. Thanks for the report!
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this is fun!

I think your distance function («len») can be made more efficient by avoiding sqrt: https://www.lexaloffle.com/bbs/?tid=36059

@merwok thanks for the link, that was an interesting read! For checking whether a blob can eat another, I use this function, which avoids overflow and sqrt.

 
function inrange(a,b,l)
	local dx = abs(a.x-b.x)
	local dy = abs(a.y-b.y)
	return dx<=l and dy<=l and (dx^2+dy^2<=l^2)
end

The len I only use for the player input/direction to get slightly more precise input :)



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