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: #Opposites

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Valui

function u(t) {

c.width|=0;for(i=0;i<400;i++)x.beginPath(),x.arc(960+960*C(i+t),540+540*S(i/1.618+t),8+4*S(t+i/50),0,7),x.fill()

Nov 19 2024 12:18 AM UTC

}// 113/140

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I am just riffing.

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Valui

function u(t) {

c.width=w=1920
for(i=9;i--;)
x.beginPath(),x.arc(960+S(t+i/1.618)*i*89,540+C(t*1.618+i)*i*89,i*9,0,7),x.stroke()

Nov 20 2024 9:28 PM UTC

}// 112/140

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Working on Unifying Quantum Theory with Relativity.

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rodrigo.siqueira

remix of d/31700 by u/rodrigo.siqueira

function u(t) {

for(x.reset(i=1e3);i--;)for(j=9;j--;x.fillRect(W,i/4+282,51,2))W=99*j-99*S(t)+600,x.fillRect(W+i*j/2-i*2.2+i*S(t),534+i,20*(i*3+360)/140,.7)

Nov 16 2024 9:47 PM UTC

}// 140/140

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Perspective #default #shadow

u/Agnes

It's a shame all of these x.reset() dweets don't work on iOS... :(
u/rodrigo.siqueira

...thanks for letting me know about this iOS limitation. So, I’ll stop using x.reset and go back to using c.width instead.
u/0x61

Should be noted reset is working fine in iOS 18.1
u/magna

Dwitter could also monkey-patch 2d context to get x.reset() working

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384.cz

function u(t) {

for(c.width=l=i=640,m=l/2;1<i;i-=.01)x.fillRect(m+S(i%17)*i*S(t-i/l)%l,(i+(S(T(i%17))*i*t>>(7&i)))%m,1,.1)

Nov 16 2024 5:48 PM UTC

}// 106/140

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Waveleaf

u/tomxor

Wow, so gnarly.

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Valui

function u(t) {

c.width|=0;for(i=0;i<20;i++)x.fillRect(i*100,540+200*S(t+i/5),80,400*S(i/9+t)),x.fillStyle=`hsl(${i*18},80%,${50+S(t)*20}%)`;

Nov 19 2024 1:48 AM UTC

}// 125/140

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Alaaddin's Rainbow Flying Carpet :)

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0x61

function u(t) {

n=c.width|=1,t||(r=Array(n).fill().map(v=>Math.random()*n/2))
for(m=n;m--;){a=r[m];b=r[m-1];(a<b)&&(r[m-1]=a,r[m]=b)
x.fillRect(m,0,1,b)}

Nov 16 2024 11:03 AM UTC

}// 137/140

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#BubbleSort

u/cantelope

#sort #sortingAlgorithms #bubblesort

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geeknik

function u(t) {

x.fillStyle=R(S(t)*127+128,C(t)*127+128,T(t)*127+128,.1);for(i=0;i<99999;i++)x.fillRect(96+S(i)*i,54+C(i)*i,5,5)

Nov 19 2024 8:12 PM UTC

}// 112/140

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Pulsing Spiral

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384.cz

function u(t) {

c.width|=f=8
x.lineWidth=.1
F=_=>f=((((((0|i/2e3)+t+f*t))**.2)*1e3)%1E3)
for(i=6e3;i--;)x.lineTo(F()+f,F())
x.stroke()
x.beginPath()

Nov 18 2024 3:12 PM UTC

}// 132/140

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𣠽𫠽🡸𛡬𪑮𩑔𫰨𜠷𜀫𤰨𬀽𪐯𜐵𛠷𝠭𭀩𚡓𚁪𚐪𚁶👍𨑴𪀮𫑩𫠨𝀬𜠫𚁃𚁩𚠮𜠵𜰹𚐯𜰫𠰨𪠪𜠫𭀩𚐪𚠶𚐩𛰨𦠽𠰨𬀩𚡓𚁪𚐪𭠫𞐩𚠳𜀰𛀨𠰨𪠩𚡶𚰵𚐯𦠪𜠲𜀩𛁣𛡷𪑤𭁨🐵𝀰𛁩🐶𩐳𞱩𛐭𞱸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𚑎𚁪👩𛰱𞐵𜀩𛁎𚁪𚰽𛠰𝐩`.replace(/u../g,'')))

Nov 16 2024 12:23 AM UTC

}// 140/140

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modulated sphere 1

u/vain

awesome! Extruded 3D object...
u/AmoreFS

hey canti. i tried to find your page at cantelope.tk these days. is there a mirror somewhere? greetz
u/cantelope

u/AmoreFS most of my currrent projects are here at the moment https://codepen.io/cantelope

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pbdcae

function u(t) {

c.width=1920 // clear the canvas
https://pbdc.ae/
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

Nov 19 2024 12:55 PM UTC

}// 112/140

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https://pbdc.ae/