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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katkip

remix of d/12162 by u/katkip

function u(t) {

c.width*=1;f=(X,Y,S)=>{if(S>.3)x.fillRect(X,Y,S-2,70),f(X+S/2,Y-70+C(X/8-t)*20,S/2),f(X,Y-70+C(X/9+t)*20,S/2)}
f(50,960,1760)

Feb 5 2019 8:23 AM UTC

}// 125/140

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Extremely smooth pistons spike-wave #recursion #recursive

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katkip

remix of d/12171 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭸⹦楬汒散琨〬㐰〬㉥㌬㈰〩㭦潲⡩㴱㭩⬫㰹㬩砮晩汬剥捴⠲〰⭩⨱〰⭓⡴⤪㌰〬〬㔰ⰲ攳⤻景爨椽ㄻ椫⬼㤻⥸⹣汥慲剥捴⠲〰⭩⨱〰⭓⡴⬮ㄷ⤪㌰〬㐰〬㔰ⰲ〰⤻`.replace(/u(..)/g,"$1%")))

Feb 5 2019 6:05 PM UTC

}// 125/140

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#default #illusion

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username

remix of d/10591 by u/ersagun

function u(t) {

for(i=j=f=24;d=a=>C(t*f)*(a[0].charCodeAt(f)-9e3),f--;i+=d`⚽⃦⌶⋗⌎⌲⌦⌅⌱⌚⌡⌟⌬⌊⌼⌭⌢⌃⍂⌱⌵⌮⌠⌧`)j+=d`╼⌣⌡⌹⋮⌟⋩⌮⍣⌙⌯⌷⍍⌫⌲⌾⍘⌤⋩⍉⌆⌶⌱⌺`
x.lineTo(i,j)
x.stroke()

Feb 4 2019 3:21 PM UTC

}// 140/140

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#wow

u/Galaxtone

just an interpolation function with defined points. #game
u/Galaxtone

Woops wrong hashtag
u/Galaxtone

Well I guess that's what they get for not adding a delete message feature

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digi_bytes

remix of d/11886 by u/katkip

function u(t) {

seed=.000000000002
c.width*=1;for(i=43;i--;)for(j=71;j--;)
x.fillRect(j*30+S(i/seed+t)*100-100,i*30+C(j/seed+t)*100-100,30,30)

Feb 6 2019 5:17 AM UTC

}// 126/140

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It tickles down in such a mezmerizing way O_O

u/pavel

.000000000002 = 2e-12

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katkip

function u(t) {

c.width*=1;x.fillRect(350+S(t)*300,400,850,200)
for(i=1;i++<9;)x.clearRect(200+i*100+S(t+i*3.14)*300,200,50,700)

Feb 5 2019 2:48 PM UTC

}// 112/140

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Broken #default

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PrimeDirective

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<19;i++)
x.fillRect(400+i*100+S(t*t)*300,400,50,200) // draw 50x200 rects

Feb 5 2019 2:26 PM UTC

}// 115/140

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sawing

u/lionleaf

Haha. #default
u/katkip

Nice but um... edited only 3 chars of the original default script XD

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ds0

function u(t) {

c.width*=1
r=400
for(i=r;i--;){Y=r-(2*r*i/r)
W=(2*(r**2-Y**2)**.5)*(.05*Math.random()+0.99)
x.fillRect(960-(W/2)+.8*r*S(t+.45*i),540-Y,W,4)}

Feb 6 2019 2:28 AM UTC

}// 140/140

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Master of Cards

u/ds0

I rly enjoy switching that ".45" in (t+.45*i) to other numbers

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leoseccia

function u(t) {

c.width*=1;s=70;x.translate(960,540);x.strokeStyle="#F00";x.lineWidth=30;for(i=60;i--;)x.strokeRect(-i*s,-i*s,i*s*2,i*s*2),x.rotate(t*.1)

Feb 4 2019 11:19 AM UTC

}// 137/140

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pavel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👩🐱𝀻𛐭𪐻𮀮𬱴𬡯𪱥𚀩𚑦𫱲𚁸𛡢𩑧𪑮𤁡𭁨𚁬👩𛐷🰹𞐺𜀩𞱬𛐭𞱸𛡬𪑮𩑔𫰨𞐶𜀪𚁺𚱘𚡃𚁴𚐫𦠪𤰨𭀩𚐯𮠬𝐴𜀫𞐶𜀪𚀨𚀲𚡩𛐱𚐯𜱼𜀩𙐳𛐱𯁼𩀩𛱺𚐩𩀽𫀭𝀹𛁘🐨𪐯𝑼𜀩𛐱𯁼𩀬𦠽𪐥𜰭𜑼𯁤𛁺🐴𛑘𚡓𚁴𚐫𦠪𠰨𭀩𛁺𚠽𮠾𜀻`.replace(/u../g,'')))

Feb 2 2019 8:42 PM UTC

}// 138/140

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for(c.width|=i=14;--i;x.stroke())for(x.beginPath(l=i-7?99:0);l--;x.lineTo(960*(z+X*C(t)+Z*S(t))/z,540+960*(((2*i-1)/3|0)%3-1||d)/z))d=l-49,X=(i/5|0)-1||d,Z=i%3-1||d,z=4-X*S(t)+Z*C(t),z*=z>0

u/katkip

#compressed
u/cantelope

cool!
u/katkip

#cube
u/UEZ

#perspective #vanishingPointProjection

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23_Skidoo

remix of d/12160 by u/23_Skidoo

function u(t) {

x.beginPath()
for(w=i=5e2;i--;x.strokeStyle=`hsl(${S(t/7+i*i)*360},70%,${50+20*y/w}%,.08`)x.lineTo(C(i*i+t)*w*4,y=S(i/2-t)*w*2.5)
x.stroke()

Feb 5 2019 8:13 AM UTC

}// 140/140

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