Dwitter - javascript demos in 140 characters

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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New_Core

function u(t) {

c.width=1920
W="Converting this text into colors"
for(D=x.createImageData(i=W.length,1);i--;)D.data[i]=W.charCodeAt(i)
x.putImageData(D,0,0)

Aug 19 2020 3:21 PM UTC

}// 140/140

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4 letters per pixel

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katkip

remix of d/19727 by u/KilledByAPixel

function u(t) {

ㅣ=(!![]+[])[!+[]+!+[]+!+[]],ꓲ=(![]+[])[!+[]+!+[]],ᛁ='o',ￜ='H',ⁱ="!"
ₗ=ￜ+ㅣ+ꓲ+ꓲ+ᛁ+ⁱ


x.font=`9cm"`,x.fillText(`${ₗ}`,100,300)

Aug 19 2020 12:55 PM UTC

}// 124/140

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https://tell.wtf/

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davidsharp

function u(t) {

xO=(c.width=1920)/2;yO=500;r=500
x.fillRect(xO+r*S(t),yO+r*C(t),9,9)

Aug 18 2020 11:59 AM UTC

}// 68/140

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basic sin/cos circle example

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hauntedg

remix of d/19723 by u/hauntedg

function u(t) {

t%3>2.9?c.width|=0:c
for(i=-70;i++<70;x.fillStyle=`hsl(${e},99%,40%)`)a=1e3,b=550,d=T(t)*9*i*C(i)**4,e=S(t)*9*i,x.fillRect(a+d-e,b+d+e,9,9)

Aug 18 2020 8:39 AM UTC

}// 139/140

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Funkier smear

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jellyedwards

remix of d/18848 by u/jellyedwards

function u(t) {

for(c.width|=j=k=600;k--;x.stroke())m=k%2,o=k%4%3?-55:55,x[m?'moveTo':'lineTo'](960+C(i=k/127+t/2%.03+m*3-.7)*(b=(8+i)*o),j+o-S(i)*b/2)

Aug 15 2020 10:54 PM UTC

}// 135/140

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More Eschery

u/rodrigo.siqueira

#Torus Escher #Mobius

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taupelink

remix of d/19699 by u/taupelink

function u(t) {

r=Math.random;for(i=z=1e3;t*i<i--;x.fillRect(z/X-z,2*Y*z,W,H))W=S(X=r(Y=r()))*S(Y-3)*50,H=4*W,x.fillStyle='#'+'369CFFC963'.substr(W*X/Y&7,3)

Aug 18 2020 3:57 AM UTC

}// 140/140

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d/19720

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dweetbleep

function u(t) {

for(t||(Y=0),X=2e3;X--;)x.fillStyle=R(r=255*C(t/C(X/t)+t/S(Y/t)+t),r*T(X/t),T(t),1-r),x.fillRect(X,0,1,5);x.drawImage(c,0,5),Y++

Aug 17 2020 11:51 PM UTC

}// 129/140

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dweetbleep

function u(t) {

for(x.fillRect(0,0,i=2e3,i);i--;x.fillStyle=R(255*S(i),0,255*S(i*i+2*t),.1))x.clearRect(960+C(i+3*t)*1e3*C(t+i),540+S(i+t)*1e3*S(t+i),9,9)

Aug 17 2020 11:33 PM UTC

}// 140/140

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hauntedg

function u(t) {

w=c.width=1920
for(i=0;i<20;i++){
k=(i*145+t*1000)%(w+1000)
x.beginPath()
x.moveTo(0,k)
x.lineTo(k-S(5*t)*200,0)
x.lineWidth=i
x.stroke()
}

Aug 16 2020 8:28 PM UTC

}// 140/140

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Learning the trade

u/Xen

nice
u/Xen

for(w=c.width|=i=20;i--;x.stroke())x.moveTo(!x.beginPath(x.lineWidth=i),k=(i*145+t*1e3)%(w+1e3)),x.lineTo(k-S(5*t)*200,0)
u/hauntedg

Thanks, as the title implies, this was my first dwit, still new at this

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Xen

remix of d/19709 by u/dweetbleep

function u(t) {

for(c.width|=i=z=1e3;i--;x.lineTo(z+z*C(Z=i*t),500+z*S(Z)));x.stroke()

Aug 18 2020 6:23 PM UTC

}// 70/140

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quick play