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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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ArthurThuczsec

remix of d/26052 by u/junov

function u(t) {

for(b=(w=c.width=127)*7,a=30,p=2e4;j=p--/w;f=j-a,o=(b-f*f-e*e)/b,m=(o>0)**.5*o,x.fillRect(i,j,1-(2*m*(e/a*C(t)+m*S(t))-S(t)),1))e=(i=p&w)-a

Aug 29 2022 4:58 PM UTC

}// 139/140

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u/junov

Good job rewriting without compression!

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ArthurThuczsec

function u(t) {

x.strokeStyle=`hsl(${(z=(7*t*t^13)%1e3)*t},60%,50%,.5)`
x.strokeRect(960-z,540-z,z*2,z*2)
x.fillRect(960+S(t*z)*z-z,540+C(z&t)*z%1e3,z*z,.4)

Oct 12 2022 9:58 PM UTC

}// 140/140

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Try: See what I See.

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nixel

function u(t) {

x.rotate(.014*S(t*1.8));for(i=1;i<50;i++){
x.fillStyle=R(9,t*14,t*14)
x.fillRect(i*8+t*200,99+S(t)*99+i,9,50)}

Mar 16 2022 6:07 PM UTC

}// 110/140

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First stroke on fresh canvas

u/KilledByAPixel

welcome. :)
u/nixel

thank you :)
u/Xen

welcome to the dwitter family!, lots of us are on the discord channel.

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tomxor

function u(t) {

eval(unescape(escape`挮睩摴栽㐸〻挮獴祬攽❦楬瑥爺楮癥牴⠱⥳数楡⠱✻景爨椽㉥㐻椭ⴻ⥸⹦楬汒散琨㈴〫㤹⩓⡘㵩┱㈰⼳㤩⩃⡙㵩⼶攳⤭䌨夫琩⨨娽匨匨太㐩⽃⡘⨱㘯天⤪⨵⨸⤬ㄳ㔫㤹⩃⡘⤭䌨堫琩⩚ⱓ⡘⤬䌨夫娯ㄶ⭴⤪⨷⨳⤻`.replace(/u(..)/g,"$1%")))

Mar 18 2019 11:00 PM UTC

}// 140/140

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Super Dune #planet #space

u/tomxor

A tumultuous and dusty planet trapped in the middle of a binary star system (my excuse for lighting both sides :D). prepend t/=6; if you have a crazy fast GPU
u/lionleaf

Wow, this one is simply amazing!
u/aleamb

wow! superb! amazing!
u/iverjo

Very good!
u/vain

Unbelievable great bump map like fx

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𪑬𫁓𭁹𫁥👒𚁴𚠽𜠷𞐬𜠵𝐬𜠵𝐩𛁦𪑬𫁒𩑣𭀨𜀬𭀪𝀬𜡥𜰬𭀼𝀷𝀿𞐹𞠭𜱥𜰩𛁬𪑮𩑗𪑤𭁨🐱𞀬𬱴𬡯𪱥𤡥𨱴𚀹𛀹𛀱𞐰𜠬𜐰𝠲𚐬𭀼𝀴𝠿𫁩𫡥𥁯𚀹𝠰𚰨𬠽𞐶𜀫𠰨𭀪𚠳𚐪𜐹𞐩𚡓𚁴𛰽𝠷𚐬𝐴𜀭𠰨𭀩𚠨𬠭𝀸𜀩𛁳𭁲𫱫𩐨𚐩𞡣𫁩𬀨𚐻`.replace(/u../g,'')))

Mar 12 2020 6:47 AM UTC

}// 137/140

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Broken Pane of #Glass

u/katkip

good idea
u/Qwitter

(Contest) ? golf a suitable "POW" in there : have a nice day;

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kodierer

remix of d/7930 by u/kodierer

function u(t) {

c.width=1920 // clear the
x.strokeText ('Martin', 30, 300, 2000)

May 4 2018 4:20 AM UTC

}// 64/140

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Cloud

function u(t) {

c.width|=0
for(i=0;i<3;i++){x.arc(960-S(t/3*i)*420, 300+i*100+C(t/3*i)*200, 100-S(i)*30+C(t/3*i)*12, 0, 7)
x.fill()
x.beginPath()}

Jan 28 2020 9:13 AM UTC

}// 130/140

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Planets (Made on mobile)

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Jezza

remix of d/17064 by u/Jezza

function u(t) {

for(i=23;i<100;i+=Math.PI/11.75) {
 x.beginPath();
 x.ellipse(960+C(i)*i*4,540+S(i)*i*4,i**0.5*2.2,i**0.5*2.2,0,0,2*Math.PI)
 x.fill();
}

Jan 4 2020 2:17 AM UTC

}// 138/140

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https://www.reddit.com/r/askmath/comments/ej…

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taupelink

function u(t) {

t||(c.width=162,r=X=4567,s=Y=89,h=l=n=1,i=k=0)
r&&x.fillText(h+`x${X}+(${k})x${Y}=`+r,0,n++*9),q=r/s|0,[h,k,r,i,l,s]=[i,l,s,h-q*i,k-q*l,r%s]

Jul 1 2019 4:45 AM UTC

}// 140/140

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Extended Euclidean algorithm, to find h, k such that hX+kY=gcd(X,Y) #math #numbertheory

u/durian-favored-monster

i remember this in high school it was very cool! good job! this is the best text one i've seen
u/geb

EEA is so cool!

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gpolonus

function u(t) {

w=960,h=540,c.width/=1,r=100,p=(i,f)=>f(t+i*1.05)*r
for(i=0;i<6;i++){x.moveTo(w,h)
x.lineTo(w+p(i+1,C),h+p(i+1,S))
x.stroke()}

Apr 8 2019 8:18 PM UTC

}// 126/140

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Spinning sticks

u/pavel

I am glad I looked at the code here because I learned the trick of passing in C or S to differentiate X vs Y coordinate. I used to pass an offset angle of pi/2 but this is much shorter. Nice!
u/pavel

For example this shaves off 6 chars from d/12567: for(c.width|=p=300;e=p--**.9%1;x.fillRect(960+r(S)/z,200+99/z,s=9*e/z,s))r=f=>p/(1+e*C(a=t/4+p))*f(a+p)+2*p/(1/e-e)*f(p),z=.5+r(C)/800
u/gpolonus

Thanks! I'm glad my simple windmill could help :)