Dweets awesomed by u/richev

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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taupelink

remix of d/15042 by u/taupelink

function u(t) {

r={valueOf:Math.random};h=256
x.globalCompositeOperation='xor';x.fillStyle=R(r*h,r*h,r*h)
x.fillRect(r*1920,r*1080,r*h,r*h)

Jul 19 2019 9:44 PM UTC

}// 123/140

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#xor

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KilledByAPixel

remix of d/15026 by u/robbyg

function u(t) {

c.width|=a=_=>x.lineTo(S(z=i*(t+=99)/6e3)*i+960,C(z)*i+540)
for(i=2e3;i--;)a()
x.fill()

Jul 18 2019 4:14 PM UTC

}// 87/140

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Dark Plasma

u/Xen

very sexy but laggs mine here
u/magna

WOW
u/KilledByAPixel

Golfed for(i=c.width|=0;i--;x.lineTo(S(z=i*(t+=99)/2e3)*i+960,C(z)*i+540));x.fill()
u/Qwitter

Quality

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pavel

function u(t) {

c.width|=f=k=>(1-3/(4+9e9**(i-.5-t%4)))*w*(-2/(i+k&3)|1)-w/2
for(i=5;i--;x.rect(960+f(2),540+f(1),w,w))w=2**(i?7+t/4%1:12)
x.fill`evenodd`

Jul 18 2019 4:05 AM UTC

}// 138/140

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St[a]ck (https://www.reddit.com/r/perfectloops/commen…)

u/KilledByAPixel

👍
u/Xen

love it
u/metamero

omg so satisfying
u/iverjo

#perfectloop
u/katkip

Awesome!

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Xen

remix of d/15011 by u/username

function u(t) {

for(s=31;s--;)for(a=21;a--;x.fillRect(s*69,a*69,g=S(z)*69,g))x.fillStyle=`hsla(${z=C(t)*a*t*s},50%,50%,.1)`

Jul 17 2019 3:54 PM UTC

}// 107/140

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katkip

function u(t) {

t||(a=b=1);for(i=999;i--;)x.fillRect(360+a*100,860+b*100-t*50,3,3),a+=S(b/4+t*S(b/a-S(t*b+a))/99)*3,b+=C(a/4)/3;x.globalAlpha=.1

Jul 17 2019 11:48 AM UTC

}// 128/140

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Exploding Vulcano #chaos

u/donbright

nice

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KilledByAPixel

function u(t) {

with(x)for(fillStyle="#0001",fillRect(0,0,2e3,2e3),strokeStyle="#FFF",beginPath(i=lineWidth=6);i-=2;stroke())arc(960,540,500,b=t*120+i,b+7)

Jul 16 2019 8:44 PM UTC

}// 139/140

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Code Sketch based on https://www.reddit.com/r/loadingicon/comment…

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joeytwiddle

remix of d/14827 by u/joeytwiddle

function u(t) {

c.width=600
d=(r,T)=>x.fillText(T,300+r*S(a=i/9.55),172-r*C(a))
for(i=N=t|0;i;i--)
for(N%i||d(90+i/4,i),k=75;k--;)N%i||d(k,'*')

Jul 15 2019 7:15 AM UTC

}// 127/140

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Divisors on a clock (second hand version) #math

u/katkip

awesome
u/aleamb

love it!
u/donbright

super cool
u/joeytwiddle

Shouts to u/donbright and u/taupelink

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joeytwiddle

function u(t) {

t||(Y=0)
onmousemove=e=>{Y=e.pageY*.7}
c.width=568;for(y=320;y--;x.fillRect(0,y,568,1))x.fillStyle=`hsl(${30*((y-Y)/30|0)},99%,50%`

Jul 14 2019 5:01 AM UTC

}// 131/140

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Broken parallax scrolling effect (only works if you wiggle your mouse over the dweet while you scroll the page)

u/joeytwiddle

I tried various things but I couldn't find any way for the iframe to know when it has been scrolled. :-/
u/katkip

It impossible. Iframe's cursor doesn't update if mouse isn't moving inside iframe

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username

remix of d/14972 by u/username

function u(t) {

for(a=_=140;--a;x.fill()){x.beginPath(x.fillStyle=R(9*($=_*S(a+t)),$+_,$+a*2))
for(i=3;i--;)x.lineTo(960+C(z=t+T(i)+a)*a*9,540+S(z)*a*9)}

Jul 12 2019 11:37 AM UTC

}// 138/140

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vvs deadly rotation

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donbright

remix of d/14977 by u/taupelink

function u(t) {

t?k<199?x.lineTo(a[k]%8<<7,a[k++]/8<<7):a=[c.width^=k=1]:a=k=0
while(a.length<64)a.lastIndexOf(r=Math.random()*64|0)+1||a.push(r)
x.stroke()

Jul 12 2019 12:57 AM UTC

}// 140/140

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each path visists every point on an 8x8 grid exactly one time. (usually)

u/donbright

(give or take a few points ha ha.. dont quite know how it works)

dwitter.net | richev (19706)