Dweets awesomed by u/ds0

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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butcherfly

function u(t) {

for(i=0;i<20;i++){
x.fillStyle=R(S(t*i)*255)
x.beginPath()
x.arc(960, 540, 500- 20 * i, 0, 2 * Math.PI)
x.fill()
}

Feb 8 2019 11:43 AM UTC

}// 116/140

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pavel

function u(t) {

for(c.width|=p=710/339,x.scale(i=9,9);i--;x.arc(107+q*C(a=i%2*3+~~T*p),60+q*S(a),60-q,a-=p,a))T=t++/2%3,q=T%1*60
x.stroke()

Feb 7 2019 8:08 PM UTC

}// 123/140

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u/katkip

Nice!

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ds0

function u(t) {

r=c.width*=1
for(i=9;i--;){Q=4*t+i
x.beginPath()
x.ellipse(r*(i+1)/10,540+300*S(Q),90,Math.abs(90*C(Q)),0,0,6.3)
C(Q)>0?x.fill():x.stroke()}

Feb 7 2019 3:32 PM UTC

}// 140/140

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩠽𙱦𪑬𫁓𭁹𫁥𙱝👠𘰰𜀶𜡠𛁸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𭰽𜡥𜰬𭰩𛁩🐹𞐻𪐭𛐻𮀮𩡯𫡴🐹𞐫𪀯𞀫𙱰𮀠𨐧𛁸𛡦𪑬𫁔𩑸𭀨𙰪𙰬𭰭𚁩𚠪𝐫𭀪𚁷𚱨𚐯𝀩𙐳𩐳𛁩𚠪𝰥𭰫𤰨𪐫𭀪𜰩𚡩𚠳𚐩𮁛𩡝👠𪁳𫁡𚀤𮰨𪀽𪐪𪐩𚱴𚠸𜀰𯐬𞐹𙐬𝠰𙐬𙁻𜐯𚀱𚱨𛰱𩐳𚑽𨀻`.replace(/u../g,'')))

Feb 6 2019 8:45 PM UTC

}// 140/140

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u/katkip

#compressed
u/sigveseb

Cool
u/magna

I love this!
u/iverjo

Trippy! Very good

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New_Core

function u(t) {

for(i=840;i--;)x.fillStyle=`hsl(${(i*S(S(t)*S(t*2+i*.157))*C(i/520)+i*9)/(.05*C(t)+1)},99%,50%`,x.fillRect(i%40*50,~~(i/40)*50,50,50)

Feb 6 2019 12:46 PM UTC

}// 133/140

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katkip

remix of d/12203 by u/katkip

function u(t) {

c.width^=0;t||(n="PI = 1/(1/(.1+e+0.32");q=((5+C(frame**3-frame**2.58)*5)|0).toString();n+=q[0];x.font='9cm"';x.fillText(n,99-t*t*55,590)

Feb 6 2019 12:41 PM UTC

}// 137/140

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PI formula with all digits

u/katkip

Update: not accurate it breaks after 5-6 seconds

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katkip

remix of d/12195 by u/katkip

function u(t) {

f=(n,b,L)=>x.fillRect(L%2==0?n:1920-n,540+S(b)*540,b/2,b/2)
for(c=256;c--;)x.fillStyle=R(c,c,c),f(20+t*c,c*1.7+t,c)

Feb 6 2019 8:44 AM UTC

}// 115/140

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katkip

function u(t) {

f=(n,b)=>x.fillRect(960+C(b)*n,540+S(b)*n,b/9,b/9)
for(c=0;c<256;c+=C(t/25)+4)x.fillStyle=R(c,c,c),f(20+t*199%1e3,c+t*9)

Feb 6 2019 8:37 AM UTC

}// 120/140

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Thing

u/sigveseb

looks kinda 3d

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ds0

remix of d/12186 by u/ds0

function u(t) {

c.width|=r=540
for(i=r;i--;){Y=r-(2*i)
W=(2*(r**2-Y**2)**.45)
x.fillStyle=R(255*S(t+111*i))
x.fillRect(960-(W/2)+.8*r*S(t+111*i),540-Y,W,3)}

Feb 6 2019 3:00 AM UTC

}// 140/140

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Red Visitor

u/katkip

??
u/Galaxtone

He keeps swapping

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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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