Random dweets | Dwitter

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.

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prawnwarp

remix of d/2536 by u/prawnwarp

function u(t) {

c.width|=0;x.lineWidth=2;r=500;a=460;b=540;x.moveTo(a,b);for(i=2;i<128;i+=2){a+=C(t*i)*r/i;b+=S(t*i)*r/i;x.lineTo(a,b);}x.stroke();

Apr 20 2017 2:03 AM UTC

}// 131/140

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dested

function u(t) {

var j=t*1000|0;
x.fillStyle=`rgb(${(j+20)%255},${j%255},${(Math.random()*255|0)%255})`;
x.fillRect(j%1920,j%1080,100,100);

Feb 22 2017 3:35 PM UTC

}// 122/140

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New_Core

function u(t) {

for(c.width|=i=11;i--;x.fillRect(-1e3+400*S(a=(i-~~(t*9))/1.91),500+400*C(a),b,b))x.shadowColor=R(x.shadowOffsetX=2e3,x.shadowBlur=b=70,300)

Nov 28 2018 12:17 PM UTC

}// 140/140

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put your mouse arrow in the middle of the circle and let your eyes rest on it.. you will see a green dot and if lucky the pink spots will also disappear

u/metamero

#OpticalIllusion
u/katkip

Awesome #illusion

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Xen

remix of d/20063 by u/Xen

function u(t) {

with(x)fillStyle=`hsl(${t*96},69%,${S(t)*69}%`,fillRect(!resetTransform(),0,4e3,1),translate(w=740,w),rotate(9*T(t/69)),drawImage(c,-w,-w/2)

Aug 21 2023 1:10 PM UTC

}// 140/140

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revisit

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aoneill01

function u(t) {

f=g=>390*g(t/3.1)+130*g(t*4.72)
h=i=>128+64*S(i*t)
x.fillStyle=R(h(1.3),h(1.5),255)
x.beginPath()
x.arc(960+f(C),540+f(S),20,0,6.3)
x.fill()

Mar 9 2019 12:44 AM UTC

}// 140/140

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jonathan_b

remix of d/4324 by u/jonathan_b

function u(t) {

c.width^=0;s=510;q=55;for(i=0;i<q;i++)for(j=0;j<q/6;)x.fillStyle=R(s/C(j),i,j*q,q**-.35),x.fillRect(960+s*C(i)*C(t/++j+j/j*i),s+s*S(i),q,q)

Dec 28 2017 8:08 AM UTC

}// 139/140

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cantelope

function u(t) {

eval(unescape(escape`挮睩摴栽ⴱ㭑㴨堬夽䌨瀩⩤⤽㹻睩瑨⡸⥬楮敔漨堬天ⱙ☦⡸子㴧扥杩湐慴栧崨獴牯步⠩⤬晩汬⡡牣⡘ⱙⰲ〬〬㜩⤩紻儨搽ㄲ㤬〩ⱱ㵓⡴⨴⤬儨搫匨瀽焼〿焺〩⩤⤬硛偝⠩㭑⡥㴱㘹ⰰ⤬儨攫匨瀽焾〿焺〩⩤⤻`.replace(/u(..)/g,"$1%")))

Dec 17 2018 11:21 PM UTC

}// 138/140

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c.width=-1;Q=(X,Y=C(p)*d)=>{with(x)lineTo(X,Y),Y&&(x[P='beginPath'](stroke()),fill(arc(X,Y,20,0,7)))};Q(d=129,0),q=S(t*4),Q(d+S(p=q<0?q:0)*d),x[P]();Q(e=169,0),Q(e+S(p=q>0?q:0)*d)

u/iverjo

#newtonscradle

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sigveseb

function u(t) {

s=S(t);r=a=>(Math.random()*2|0)-.5;for(n=c.width=i=99;i--;x.lineTo(n*X/Z,n*U/Z))F=r(),U=s+r(),V=r(),Z=V*C(t)-F*s+2,X=s+V*s+F*C(t);x.stroke()

Aug 6 2016 9:37 PM UTC

}// 140/140

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just a few more bytes and this would look reasonably sweet instead of quite crappy :3

u/iverjo

Cool!
u/donbright

3d stuff is genius
u/katkip

#cube

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ciaccodavide

remix of d/24117 by u/ciaccodavide

function u(t) {

c.width|=1
for(Y=68;Y--;)
for(X=120;X--;)
d=Math.hypot(X-58,Y-34),
x.fillRect(
 X*16+C(d*d/t)*9,
 Y*16+C(d*d/t)*9,
 9+2*C(t*.8),
 9+2*S(t)
)

Oct 14 2021 9:51 PM UTC

}// 140/140

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#waitforit

u/magna

Wow
u/cantelope

awesome
u/cantelope

relevant d/21033 ...also d/18773

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snydej

remix of d/6994 by u/snydej

function u(t) {

[0,1,2].map(d=>x.fillRect(0,0,90,90,x.setTransform(s=S(q=d*2.1+t),C(q),S(q+=2.1),C(q),t%8*250,990*S(t/6)**2),x.fillStyle=R(l=140+80*s,l,l)))

Feb 18 2018 7:34 PM UTC

}// 140/140

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u/magna

WOOOT!!!
u/BuRRak

amazing
u/iverjo

Great idea!
u/13thptr

#twister -like
u/Cloud

#d3