Top dweets by u/DataMeta

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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DataMeta

remix of d/21135 by u/Pascal

function u(t) {

c.width=88;for(X=8;X--;)for(Y=8;Y--;)x.fillRect(X,Y,n=S(t/2*Y^X*t/2),n)
for(i=30;i--;)x.drawImage(c,i%3?8:0,i%2?8:0)

Jan 5 2021 12:55 AM UTC

}// 116/140

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chess on acid but smolified :)

u/DataMeta

cut 28 bytes but lost just as many fps with the in-parameter ternaries vs nested loop with two drawImage(), exploring how to do it more elegantly

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DataMeta

remix of d/21041 by u/DataMeta

function u(t) {

f=(X,Y,n=3)=>n?f(T(X**3-Y**2),3*S(1+X*Y),n-1):Y**2
for(X=1920;X--;)x.fillRect(X,t*60,r=f(X/1920,3/(Math.PI+t))/5,r)

Jan 2 2021 8:33 PM UTC

}// 115/140

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warped #slowdraw

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DataMeta

remix of d/21041 by u/DataMeta

function u(t) {

f=(X,Y,n=5)=>n?f(S(X**3-Y**2),3*S(1+X*Y)+1,n-1):Y**4
for(X=1080;X--;x.fillRect(X,t*60,1,1))x.fillStyle=R(g=f(X/1920,22/(7+~~t)%1),g,g)

Dec 22 2020 6:34 PM UTC

}// 134/140

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reflection and shadow

u/Xen

nice!

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DataMeta

remix of d/19224 by u/DataMeta

function u(t) {

for(r=Math.random,X=r(Y=r(Z=r())),i=255;i--;x.fillStyle=R(X/Y/Z,Y/Z/X,Z/X/Y,r()/5))x.fillRect(1920*r()-i/2,1080*r(),q=X/Y/Z^i,T(q)/T(i*t)*6)

Aug 11 2020 7:45 AM UTC

}// 140/140

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prng rgb #glitchy #colors

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DataMeta

function u(t) {

t||(r=0),r=(5*r+1)%256,x.beginPath(x.stroke()),x.arc(960,540,r,0,7)

Apr 22 2020 7:20 PM UTC

}// 67/140

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#circlechallenge using a Linear Congruential Pseudo-RNG

u/DataMeta

64 bytes: t?r=(5*r+1)%256:r=0,x.beginPath(x.stroke()),x.arc(960,540,r,0,7)

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DataMeta

remix of d/17436 by u/DataMeta

function u(t) {

for(r=Math.random,j=1e3;j--;)r()<.1?n=99:r()>.9?n=255:x.fillStyle=R(n,n,n,.05),x.fillRect(j*2-9,t*99-9,99*r(),9)

Feb 4 2020 9:07 PM UTC

}// 112/140

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brushed steel #texture

u/Xen

nice!

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DataMeta

remix of d/15628 by u/DataMeta

function u(t) {

r=Math.random,b=255
with(x)for(j=768;j--;beginPath(fill()))fillStyle=R(b*r(),b*r(),b*r(),.15),
arc(64*(j%31)-128,64*(j/31|0)-64,b*r(),0,.8)

Oct 5 2019 3:34 PM UTC

}// 139/140

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🌈⛆

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DataMeta

remix of d/15839 by u/DataMeta

function u(t) {

s=C(t);c.style.background=R(g=s*255,g,g);if(t<3)for(i=1920;i--;)
x.fillStyle=R(l=i/7.5,l,l),x.fillRect(t*s>=0?1918-i:i,540-g,4,4)

Sep 29 2019 4:55 AM UTC

}// 129/140

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#gradient #illusion

u/katkip

nice
u/iverjo

#opticalillusion

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DataMeta

remix of d/15444 by u/DataMeta

function u(t) {

if(t++<8)for(i=2e3;i--;)Q=(h=i-960)*h/4e5-2,
x.fillStyle=R(l=t*i/18%232,S(t)*i/9,240-l),
x.fillRect(i+60,540+C(t+l/36)*l*Q,9,9)

Aug 18 2019 11:28 PM UTC

}// 127/140

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Smoothed curves, widened palette + golfed

u/DataMeta

#waitforit
u/joeytwiddle

It could be a colourful sea creature

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DataMeta

function u(t) {

r=Math.random;d=r(e=r(f=r()));
for(i=255;i--;x.fillStyle=R(i*d,i*e,i*f,.009))
x.fillRect(960+(g=S(t)*i/.7),540+(h=C(t)*i/.7),-g*d,-h*e)

Aug 10 2019 4:22 PM UTC

}// 135/140

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on led-based screens it both blends to gray more, and displays more vibrant primary-adjacent colors than on lcd

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