Dweets awesomed by u/FrenchToast

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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Bam191

remix of d/5936 by u/Bam191

function u(t) {

x.fillStyle=t?'#0f0':x.fillRect(0,0,宽=2e3,宽),r=Math.random,x.font="3em'",b=t*宽%1100,b>1e3?a=r()*宽:x.fillText(String.fromCharCode(r()*宽),a,b)

Jan 12 2018 1:56 PM UTC

}// 140/140

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With help from the code golf team, we were able to get the matrix crawl to have a black background :D

u/sigveseb

would be cool to have some sort of feature in dwitter to group effects into categories. Here's my take at matrix! :D d/4922
u/iverjo

Tags would be helpful for grouping effects
u/rippedspine

nice!
u/joeytwiddle

#matrix

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41407

function u(t) {

function r(){return Math.random()}
x.fillStyle=R(r()*255,r()*255,255)
x.fillRect(r()*1920,10,10,10)
x.drawImage(c,T(t*r()*2)*r()*5,r()*71)

Jan 12 2018 9:57 AM UTC

}// 138/140

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u/trupples

nice glitchy effect :o
u/loni_art

>insert vaporwave
u/sigveseb

noice
u/yodacoder

nice glitches

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jonathan_b

function u(t) {

for(c.width|=s=i=504;--i;)for(j=s;j-=72;)q=T(S(j+t+i)),x.fillStyle=R(j%256,j/2,i/q,.5),x.fillRect(s*2+s*C(i+q/j%5)*C(t/s*s+q),s+s*S(i),j,9)

Jan 12 2018 8:41 AM UTC

}// 139/140

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romstr

function u(t) {

c.width^=0
k(t*100%960)
}
function k(l){
x.fillStyle=R(l%255,70+l%255,140+l%255)
x.fillRect(960-l,540-l,l*2,l*2)
if(l>0)k(l-40)

Jan 12 2018 7:21 AM UTC

}// 128/140

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u/whackashoe

I like this pattern a lot! Btw: you could cut off a few chars by doing k=l=>{.
u/sigveseb

nice and clean style! looks great

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ellisk1

remix of d/5798 by u/FrenchToast

function u(t) {

for(c.width|=i=115;i--;)x.fillStyle=R(99-i,175-i),x.beginPath(),x.arc(960+500*C(2*t-i/15),540+200*S(1.4-i/50),150-i,0,7),x.fill()

Jan 12 2018 12:37 AM UTC

}// 129/140

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u/joeytwiddle

Grass snake
u/joeytwiddle

#worm

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breakster

remix of d/5929 by u/breakster

function u(t) {

c.width|=w=960
x.translate(w,m=540)
for(i=m;i--;x.rotate(S(t/10)/m*40*C(i)/m*73214),x.fillStyle=R(S(i)*m),x.fillRect(-a,-a,q=a*2,q))a=i*10

Jan 11 2018 10:07 PM UTC

}// 138/140

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u/magna

Stylish!
u/breakster

Thanks! :)
u/katkip

Roblox Logo :)

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S.T.L.K.R.

remix of d/5880 by u/S.T.L.K.R.

function u(t) {

c.onclick=d=>a=d.x*3;;for(i=4e3;i--;){x.fillStyle=`hsla(${i*a},70%,50%,.5)`;x.fillRect(a+C(i)*T(t+i*8e4)*5e2,500+S(i)*T(t+i*8e4)*4e2,9,9)}

Jan 11 2018 2:06 AM UTC

}// 138/140

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Click anywhere on the screen! Find your poison.!

u/Xen

nice

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ellisk1

function u(t) {

x.fillStyle=`hsla(${Q=2*t*t},90%,50%,.5)`,x.beginPath(),x.ellipse(960+700*C(Q),300*S(Q)+350,15+10*S(Q),50*T(Q%1.55),0,0,3.14),x.fill()

Jan 10 2018 11:07 PM UTC

}// 134/140

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Dripping paint can?

u/sigveseb

Rocks hard imo :)
u/ellisk1

Thanks!
u/sandromiccoli

niceee

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zanella

remix of d/5860 by u/zanella

function u(t) {

m=h=960;n=v=540;s=0;for(i=2e3;i--;){s=(s+1+4*Math.random()|0)%5;o=1.26*s;m=(m+h+v*C(o))/2;n=(n+v+v*S(o))/2;x.fillRect(m,n,1,1)}

Jan 10 2018 8:39 PM UTC

}// 127/140

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Chaos games are fun! https://en.wikipedia.org/wiki/Chaos_game

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sandromiccoli

remix of d/5854 by u/sandromiccoli

function u(t) {

t?c.width=2e3:a=0;x.globalCompositeOperation='xor';for(i=190;i--;){x.beginPath();x.arc(i*15,i%9*150,a,0,7);x.fill();}a+=(S(t)+0.01)

Jan 10 2018 8:25 PM UTC

}// 131/140

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