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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BriSeven

remix of d/17789 by u/BriSeven

function u(t) {

for(i=r=X=9e2,Y=5e2,W=(H=1e3)*4;i;i--)x.fillStyle=`hsla(${i/20+10},99%,${i/10+60}%,0.1)`,x.fillRect(X+=3*S(r+=C(Y*t*r)),Y+=3*C(r),5,5)

Feb 28 2020 3:47 AM UTC

}// 134/140

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Angel's blood

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rodrigo.siqueira

remix of d/17742 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=-9;i<9;i=i+.004)ψ=C(7*(i+t*9))/(.1+i**4),x.clearRect((i*(.2+S(t))+9*t%9)*200,540-ψ*29*(1+S(t)/2),9,9)

Feb 26 2020 4:27 PM UTC

}// 131/140

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Continuous Morlet Wavelet transformations: translation and dilation of ψ for signal processing #wavelet

u/Cloud

Ohh, I dead

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iznax

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁦𫱮𭀽𙰱𞁣𫐢𙰬𩡩𫁬𥁥𮁴𚁴🰢𘠺𘡜𭑻𜑆𞑄𝁽𘠬𝐲𝐬𝠷𝐩𛁩🐹𝠻𪐭𛐻𩡩𫁬𤱴𮑬𩐽𤠨𜐶𜀭𪰪𝀫𪐯𜠬𩰽𞀴𛑫𚠳𛁧𛰲𚐬𩡩𫁬𤡥𨱴𚀹𝠰𚱓𚁡🐵𚰨𪐾🠳𚐪𛠲𝀩𚠲𝀰𚱓𚁫𛰲𚱩𚐪𤰨𪐩𚠨𝀰𛑫𛰳𚐬𝐸𜀫𠰨𨐩𚠱𝠵𚱫𚠳𛀸𛀸𚐩𪰽𭀪𞐻`.replace(/u../g,'')))

Feb 27 2020 5:40 AM UTC

}// 139/140

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Who can draw a nicer beard? #growth

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BriSeven

remix of d/584 by u/BriSeven

function u(t) {

for(i=r=X=Y=5e2,W=(H=1e3)*4;i;i--)x.fillStyle=`hsl(${r*5},99%,50%)`,x.fillRect(X+=S(r+=S((t+X)*r)),Y+=C(r),5,5),X=((X%W)+W)%W,Y=((Y%H)+H)%H

Feb 28 2020 3:33 AM UTC

}// 139/140

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Pile of silly string

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rodrigo.siqueira

remix of d/17748 by u/katkip

function u(t) {

c.style.filter=`sepia(`
P=(θ,R)=>x.fillRect(S(θ/5)*R+960,C(θ/5)*R+540,.6,1)
for(q=z=i=3e3;i--;)P(S(q)*9,C(z/3)*485),q+=C(z+t/z),z+=S(q*15-z)

Feb 26 2020 3:03 PM UTC

}// 140/140

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Chaotic flower #mandala

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Odog8

function u(t) {

eval(unescape(escape`ⅴ☦⡁㵂㴰⤻䴽䵡瑨⹡扳㭣⹷楤瑨㵩湮敲坩摴栻砮景湴㴧㍥洢✻潮浯畳敭潶攽攽㸨堽攮砬夽攮礩㭸⹦楬汔數琨✽ħⱘⱙ⤻砮晩汬呥硴⠧伧ⱁⱂ⤻䄭㵍⡁ⵘ⤯⡁ⵘ⬮ㄩ㭂ⴽ䴨䈭天⼨䈭夫⸱⤻
`.replace(/u(..)/g,'$1%')))

Feb 26 2020 11:58 PM UTC

}// 131/140

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Cat & mouse test

u/aleamb

#interactive

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KilledByAPixel

function u(t) {

eval(unescape(escape`𪐽𭀪𝠰𙐱𜰊𨰮𬱴𮑬𩐮𩡩𫁴𩑲🐢𪑮𭡥𬡴𚀱𘠊𭱩𭁨𚁸𚑦𫱲𚁴𯁼𬱣𨑬𩐨𝀬𝀩𛁢𩑧𪑮𤁡𭁨𚁱👃𚁩𚡩𚐯𝰩𛁬𪑮𩑔𫰨𪠽𞐵𛁪𚐻𪠭𛐻𫁩𫡥𥁯𚀹𝠫𤰨𮠽𪐪𛠴𞀳𚱔𚰨𛠴𞀳𚱱𛑔𚐪𪠯𞐴𚐪𬠬𞐵𚱃𚁺𚐪𬠩𚑲👴𚠨𜰶𜀭𤰨𪠯𜰰𚐪𜰹𚐯𝠬𬱴𬡯𪱥𚀩𒡔👱`.replace(/u../g,'')))

Feb 27 2020 1:38 AM UTC

}// 138/140

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Spider Web

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Cloud

remix of d/17759 by u/Cloud

function u(t) {

for(c.width|=i=400;i--;){
x.fillStyle=R(i/2)
x.fillRect(800+C(t*3-i/100)*50-i/2, 500+S(t*3-i/100)*10-i/2, 300+i, 300+i)
}

Feb 26 2020 7:19 PM UTC

}// 121/140

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#tonel

u/13thptr

#tunnel
u/vain

clever coding!

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django

remix of d/15467 by u/django

function u(t) {

w=c.width*=1;k=80;f=w/k
for(i=0;i<k;i++)for(j=0;j<k;j++)p=j/k,x.fillStyle=R(0,p*255,128),x.fillRect(i*f,540,f,(1-p)*C(T(i-j)+S(i*t/4))*1e3)

Feb 25 2020 2:29 AM UTC

}// 139/140

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wake

u/Xen

wanna hashtag drugs and ocean but i'm behaving, love this! bottom half blended smoothly.

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katkip

function u(t) {

t||(a=b=0);
x.arc(960+C(a)*b,540+S(a)*b,0,0,0)
x.stroke()
b+=1
a+=(t|0)*Math.PI/4

Feb 27 2020 3:43 PM UTC

}// 81/140

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