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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rodrigo.siqueira

remix of d/16039 by u/asteriskman

function u(t) {

for(p=q=I=2e3;I--;)x.fillStyle=R(I/3),p=p,q=q,[p,q]=T(t**I)|0?[(p-q)/2,(p+q)/2]:[1-(p+q)/2,(p-q)/2],x.fillRect(p*1e3+560,q*910+390,1,1)

Oct 13 2019 9:40 PM UTC

}// 135/140

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Fractal Red Dragon Curve #dragoncurve

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rodrigo.siqueira

remix of d/11063 by u/pavel

function u(t) {

with(x)for(i=24;--i;fill())for(beginPath(n=k=i+2);k--;arc(960,540,50*i,a=3.14*(4*k+t)/(n),a))fillStyle=R(a=(1-i/9)*300,a*S(t),a*C(t/2))

Nov 19 2018 1:37 AM UTC

}// 135/140

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Polygon Polycolor

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ciaccodavide

function u(t) {

c.width|=1
for(Y=9;Y--;){
x.moveTo(1980,Y*99)
for(X=333;X--;)
x.lineTo(X*6,Y*99+~~(Y*X/99)*S(X/27+t)*33+111)
x.stroke()
}

Nov 16 2020 7:48 PM UTC

}// 121/140

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rodrigo.siqueira

remix of d/28265 by u/rodrigo.siqueira

function u(t) {

for(c.width%=W=X=2e3;X--;x.fillRect(X,Y*999,1,W))for(Y=1,k=9;k--;Y-=Math.abs(f(3**k*X/W+S(X/299+Y-t)/5)/3**k))f=n=>n+~n+.5

Aug 9 2023 1:54 PM UTC

}// 122/140

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Moving mountains #mountains

u/joeytwiddle

#waves

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭀿𫰽𘠢𞡣𛡯𭑴𩑲𢁔𣑌🐢🁤𪑶𘁩𩀽𣰾🀯𩁩𭠾🐾🁩𫡰𭑴𘁩𩀽𢐾🀽𘠻𒡩👉𛡶𨑬𭑥𞱦𫱲𚁪🐱𜀱𞱪𛐭𞱏𛡩𫡮𩑲𢁔𣑌👯𚑔𦱪𧐿𫰽𪠫𨀽𙁻𥁛𪡝𯐠𨀫𫰺𪐮𫑡𭁣𪀨𛱞𦰭𚰪𚀩𛰮𝁝𚠤𛱧𚐦𙡩𛡭𨑴𨱨𚀯𝀯𩰩𛡬𩑮𩱴𪀽🐴𙠦𚁶👥𭡡𫀨𪐩𚐽👶𯀰🱔𦱶𧐽𪐺𜀻`.replace(/u../g,'')))

Aug 13 2019 5:19 AM UTC

}// 140/140

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our Fours Puzzle V2 ~ How many integers between 0-100 can you form using only 4 4s and the +-*/.() operators? Example 1=44/44

u/KilledByAPixel

Updates: Fix issue with space running out after 20. You can also use the decimal point. Only exact matching strings are accepted.
u/KilledByAPixel

#interactive #math #puzzle #game

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iverjo

remix of d/79 by u/iverjo

function u(t) {

c.width=960;for(i=2e3;i--;)s=7/(S(i/42)*S(2.79*i+t-1.57)+2),x.fillRect(480+460*S(i/42)*S(2.79*i+t),270+160*(C(i/42)+T(t/9+i/42)),s,s)

Jul 29 2016 12:55 AM UTC

}// 133/140

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Golfed version (120 characters): c.width=960;for(i=2e3;i--;)b=2.79*i+t,x.fillRect(480+460*S(a=i/42)*S(b),270+160*(C(a)+T(t/9+a)),s=7/(S(a)*S(b+4.7)+2),s)

u/iverjo

118 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(S(d)*S(b+4.7)+2),s)
u/iverjo

115 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(-S(d)*C(b)+2),s)
u/iverjo

114 characters: c.width=960;for(i=2e3;i--;)x.fillRect(480+460*S(d=i/42)*S(b=2.79*i+t),270+160*(C(d)+T(t/9+d)),s=7/(S(d)*C(b)+2),s)

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SuperFromND

remix of d/10172 by u/Purpzie

function u(t) {

c.style.filter='invert(1)'
for(c.width|=i=0;i<999;i++)x.fillStyle=R(i/5,i/5,i/5),x.fillRect(C(i)*(a=i*C(t*i/9e2))+969,S(i)*a+550,C(i)*2e3,1)

Oct 12 2018 7:51 AM UTC

}// 140/140

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[ the eye is watching ]

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taupelink

remix of d/29682 by u/taupelink

function u(t) {

a=Math.abs;f=v=>a(v%r-2*r/3)+a(v%8-6);for(i=1e4;i--;x.fillRect(960+80*r*C(h),1080-90*r*S(h),t<2,f(f(3*r+9*h)-f(r+12*h))&3))r=i*t%9+3,h=r*i%4

Mar 21 2024 8:55 PM UTC

}// 140/140

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d/29684

u/cantelope

Wow

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McNoodle

function u(t) {

c.width+=0;x.beginPath();for(let i=0;i<130;i++)x.lineTo(Math.random()*1920,Math.random()*1080);x.fill();

Dec 26 2019 1:45 PM UTC

}// 104/140

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aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

u/Xen

Danger, danger,, DAnger!!

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doughno

function u(t) {

w=1920
h=1080
for(i=0;i<16;i++){
x.fillStyle=i%2?"#000":"#FFF"
s=(350+i*40)*C(t*1.5)-i*100
a=s+600
if(a>0)
x.fillRect((w-a)/2,(h-a)/2,a,a)
}

Apr 15 2020 12:54 AM UTC

}// 140/140

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u/sigveseb

Sweet
u/Xen

nice!