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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: #Food

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logomach

function u(t) {

c.width|=0;for(i=400;i--;)x.fillStyle=R(i,0,i),x.fillRect(960+200*S(t*2+i),850+800*C(i/400+1.57)+S(i)*80+T(i/2)*300,10,10)

Jan 5 2018 2:08 AM UTC

}// 122/140

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anzx

function u(t) {

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

Jan 5 2018 12:43 AM UTC

}// 129/140

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u/joeytwiddle

#default

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anzx

function u(t) {

c.width=1920;
  for(i=0;i<1001;i++)
  x.fillRect(500+S(t+i)*300+i*6,i*6, 10, 10)

Jan 4 2018 8:14 PM UTC

}// 80/140

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Xen

function u(t) {

X=(C(t**9)+1)/2
Y=Math.random()
x.fillRect(X*900,t*99%1e3,Z=29,Z)
x.fillRect(1920-Y*900,t*99%1e3,Z,Z)
x.fillStyle=`hsla(${t*Z},99%,40%,.5)`

Jan 4 2018 6:19 PM UTC

}// 139/140

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"Random Vs" Dwitter Challenge set by Veubeke, entry #1

u/eviltoad

What challenge? Where are the instructions?
u/coderkid

yeah? where is the challenge details? ;)
u/sigveseb

From the discord chat: "Actually, let’s make a dwitter challenge: create a visualization of the distribution of Math.random values and the values of a drop in replacement side by side"
u/sigveseb

From the discord chat: "Actually, let’s make a dwitter challenge: create a visualization of the distribution of Math.random values and the values of a drop in replacement side by side"
u/sigveseb

Link to chat: https://discord.gg/emHe6cP :)

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asteriskman

function u(t) {

x.rotate(S(t*2.1)*0.001)
x.strokeStyle=R(S(t+1.2)*255,C(t)*255,S(t)*255);
x.beginPath();
x.arc(960,540,250*C(t)+250,0,6.28);
x.stroke();

Jan 4 2018 4:27 PM UTC

}// 136/140

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u/eviltoad

nice!
u/eviltoad

I'm going to remix it

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tillsc

function u(t) {

for(i=0;i<88;i++)for(j=0;j<31;j++){
k=j/10;x.fillStyle=R(S(k)*255);x.fillRect(320*(3+(S(i/28)*C((k+t)%3.14))%1),320*(2+C(i/28)), 11, 11) 
}

Jan 4 2018 3:55 PM UTC

}// 140/140

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u/rep_movsd

#underrated

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sandromiccoli

function u(t) {

s=S(t*1.14)*280
x1=800+s/2
y1=700+s/2
x.translate(x1,y1)
x.rotate(0.0111)
x.strokeRect(-s/2,-s/2,s,s)
x.translate(-(x1),-(y1))

Jan 4 2018 2:23 PM UTC

}// 126/140

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lowpoly

function u(t) {

s=10;m=255;x.drawImage(c,0,s);for(i=0;i<=c.width;i+=s)x.fillRect(i,0,s,s,x.fillStyle=R(C(t*i/10)*m,0,S(i*t)*m));

Jan 4 2018 11:21 AM UTC

}// 112/140

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pommak

function u(t) {

s=S(t),w=190*s,p=.062+t
for(z=1;z<40;z++)for(i=0;i<99;i++){
x.fillStyle=R(w*s,w*s,w)
x.fillRect(960+40*z*s*S(i*p),590+40*z*s*C(i*p),s*99,1)}

Jan 4 2018 10:32 AM UTC

}// 140/140

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DirtyDan

function u(t) {

c.width=1920;p=Math.PI*2;x.beginPath();t/=4;a=540;for(i=0;i<50;i++){b=p*(i/99)*T(t);x.lineTo(0,a+a*S(b));x.lineTo(i*40,a+a*-S(b))}x.stroke()

Jan 4 2018 8:08 AM UTC

}// 140/140

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Got this while trying to shorten this one: c.width=1920;p=Math.PI*2;x.beginPath();t/=4;a=540;for(i=0;i<250;i++){b=p*(i/270)*T(t);x.lineTo(i*8,a+a*S(b));x.lineTo(i*8,a+a*-S(b))}x.stroke()

u/DirtyDan

Got it! https://www.dwitter.net/d/5460