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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Current theme challenge: #Food

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shandriy

function u(t) {

for(d=m=i=(c.width=99)/33;i>0;x.fillStyle=R(0,0,255-(--i)*(255/(m+1))))for(j=100;j--;d=m-i+1)x.fillRect(j,S(j/(i*5+2)-t*d)*(d+2)+d*10,1,99)

Jul 30 2024 7:59 PM UTC

}// 139/140

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Sine #waves

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veubeke

function u(t) {

c.width^=0
with(x)for(i=11;i--;i>1?fillRect((2+i+S(t)*3)*99,400,50,200):(fillStyle='#fff',fillText('right left',i*1430-190,550)))font='9em"'

Sep 18 2020 7:45 PM UTC

}// 140/140

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#default

u/taupelink

I'm glad d/20000 is a good one!
u/ximavus

yeah

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rodrigo.siqueira

remix of d/28780 by u/rodrigo.siqueira

function u(t) {

x.fillStyle=R(a=b=t,30)
for(i=5e4;i--;a+=(r=i/b&i%2)*3.7+b*S(a*3+r)/33-a*a/4.4+a*b/18,b=b*.9+C(a*3)/3)x.fillRect(b*2e3-1e3,3e3-a*5e3,.1,t<2)

Oct 31 2023 12:03 PM UTC

}// 140/140

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Green fractal #spiral #plant

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Flopster

remix of d/4893 by u/mmagin

function u(t) {

c.width|=0
x.font="200px Arial"
for(i=0;i<1.5;i+=.25)
x.fillText("⚽", 100+1000*i, 1000-850*Math.abs(S(t-i))**.9)

Dec 30 2017 11:50 PM UTC

}// 112/140

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A demonstration that abs(sin(x))**.9 is a good compact approximation of bouncing.

u/lionleaf

Nice! that's a useful trick! Why not just abs(sin(x)) though?
u/magna

**.9 compresses the curve and makes the restitution look more realistic.
u/Flopster

See https://www.desmos.com/calculator/oxuakmyuko.

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obooij

remix of d/4522 by u/nic

function u(t) {

for(c.width|=0,r=C(t),s=S(t),i=j=729;i--;w=i%81/9,q=i/81,v=(r*r*e+s*q-r*s*w-27)/j,x.fillRect(j+(s*s*w+r*q-s*r*e)/v,j+(s*e+r*w)/v,9,9))e=i%9

Jan 1 2018 9:38 PM UTC

}// 139/140

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joeytwiddle

function u(t) {

c.width|=0
for(i=9;i--;)x.fillRect(485+i*100+300*T(q=t+i/9)**5-200*S(q*2)**8,500-400*S(q*2)**16,50,200)

Mar 14 2022 5:31 AM UTC

}// 103/140

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Rewrite/redux of an earlier dweet: "Disney candlesticks"

u/joeytwiddle

The original version: d/7584

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rodrigo.siqueira

remix of d/33074 by u/rodrigo.siqueira

function u(t) {

for(i=2e4;i--;x.fillRect(200*X-586,590-15*Y,C(X/5)**2+(f*99&24)/40,t<4))X=i*i/t%13,Y=40*S(i+t),f=((S(Y*(Y<1))+S(X-3)*Y)/(17+(X-8)**2+Y*Y)*X)

Jan 16 2025 2:02 PM UTC

}// 140/140

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Reflection

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hope4tg

remix of d/8139 by u/firegodjr

function u(t) {

x.font='3em x';r=Math.random;for(i=240;i--;x.fillText('■',i*8,(t*5|0)*8))f=r(),x.fillStyle=R(l=(S(i/10)*(t*S(t))%5/5)*128+i,l-128+(t*2),t*2)

May 26 2018 3:34 PM UTC

}// 140/140

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renders itself

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👩🐹𒡷𪑴𪀨𮀩𩡯𬠨𬱣𨑬𩐨𝐰𛀵𜀩𞱩𛐭𞱢𩑧𪑮𤁡𭁨𚁳𭁲𫱫𩐨𚐩𚑬𪑮𩑔𫰨𦀽𚁩𚠲𚱴𚠹𚐥𝀵𛐳𛁙🐸𚱓𚁢👴𚠵𚰲𚡩𚐯𝰩𛁬𪑮𩑔𫰨𛐭𦀬𦐫🐴𚐬𫁩𫡥𥁯𚁘𚰽𜠪𠰨𨐽𠰨𨠩𛰲𛐵𚐬𦐫🐲𚡓𚁡𚐩𛁬𪑮𩑔𫰨𦀫𜠪𠰨𨐫👃𚁢𛐲𚐫𜐩𛁙𚰲𚡓𚁡𚐩`.replace(/u../g,'')))

May 10 2021 4:24 AM UTC

}// 140/140

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Is your #default running? 🏃

u/magna

LOL

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mrg

function u(t) {

c.width=1920; /* clear the canvas */
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300, 400+i%2*S(t)*300, 50, 200) /* draw 50x200 rects */

Mar 3 2017 3:34 PM UTC

}// 135/140

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