Hand Cram

Hand Cram is a Pico-8 game that fits into just two tweets (that's less than 560 characters!).
It's based on a small web game I made a while back!

Controls

Arrows control the white circle

ESDF control the red circle

(yes, Pico-8 uses ESDF not WASD)

X to reset the game

You can reset by clicking the pause button and selecting "reset cart"

Goal

If the two circles touch you lose.

When a circle touches a dot of the opposite color it gets bigger (bad!)
When a circle touches a dot of the same color, it gets a little smaller (good!)

Survive as long as you can!

Source Code

You can see it on twitter here (note, this is the original src, the code below has been updated slightly to include a restart)

If you want to learn what's happening here, I have a cleaned up and highly commented version of this source code here.

t=0g=0r=rnd
w=128b=abs
o=circ::_::if g>0then
pal({5,2},1)print("score:"..t,9,9,7)
if(btn(5))t,g=0,0
else
if(t<1)a={9,9,88,0,40,0,0,0,0,0,40,0,88}
i=btn()pal({7,8},1)t+=1
for k=0,200do
o(r(w),r(w),5,0)end
for k=0,10do
s=2^k
l=s*2
a[k+3]+=band(i,l)/l-band(i,s)/s
end
for k=0,1do
x=a[3+k*8]y=a[5+k*8]s=a[k+1]o(x,y,s,1+k)o(x,y,s+2,1+k)
for c=0,w do
srand(c+t)if r(8)<1then
p=1+flr(r(2))z=r(w)o(c,z,4,p)
if(sqrt((x-c)^2+(y-z)^2)<s)a[k+1]+=b(1+k-p)/5-.01end
end
if(k==1 and sqrt((x-a[3])^2+(y-a[5])^2)<s+a[1])g=1
if(b(64-x)>66or 66<b(64-y))g=1end
end
flip()goto _

If you own Pico-8, you can run this on your machine by copy/pasting the above code into a new cart.

You can also download the cart directly if you'd like. The cart has the raw src as well as the commented version.

Reply to that tweet with your high score!

(Note: I updated the code slightly to add a reset function. Still under 560 characters!)