Dweets by u/Pascal

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: #Opposites

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Pascal

remix of d/22172 by u/Pascal

function u(t) {

for(c.width|=i=162;i--;)x.fillRect(550+300*T(t*2+(S(i*i+t)*S(t*3))**7)/50+(a=i%9)*100,400+(i-a)/9*11*(1-3*S(i*i+t)*S(t*3)**299),50,11)

Mar 27 2021 9:00 PM UTC

}// 134/140

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u/doughno

#default
u/magna

#glitch
u/andrea270872

very "old TV"! great

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Pascal

function u(t) {

c.width|=0
for(i=162;i--;)x.fillRect(500+300*T(t+(S(i*i)*S(t))**7)/5+(a=i%9)*100,400+(i-a)/9*11,50,11)

Mar 27 2021 8:37 PM UTC

}// 102/140

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#default #glitch

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Pascal

function u(t) {

for(c.width|=i=200;i--;x.fillRect(1e3+3e3*(C(i+t)*C(a))/z,550-3e3*(S(a))/z,b=500/z**2,b))z=7+S(i+t)*C(a=i/3+t/4*i/99)*2,x.fillStyle=`#000a`

Mar 16 2021 1:05 PM UTC

}// 139/140

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Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;x.lineTo(w+w*(C(i+44/7*(.5+S(t+i/w/9)/2)**9)+C(i/6+t))/z,w/2-w*(S(i)+S(i/6+t))/z))z=S(i)-5
x.stroke()

Mar 4 2021 6:24 PM UTC

}// 126/140

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u/Xen

nice!

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Pascal

function u(t) {

for(c.width|=i=200;i--;x.closePath())z=5+S(i+t)*C(a=i*i+t/9)*4,x.arc(1e3+3e3*(C(i+t)*C(a))/z,550-3e3*(S(a))/z,30/z,0,7)
x.fill()

Feb 24 2021 5:54 PM UTC

}// 128/140

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particles

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Pascal

remix of d/21752 by u/danny@hille.dk

function u(t) {

t?0:c.width=w=960,x.fillStyle='#2361'
for(x.fillRect(0,0,i=w,w);i-->-w;)x.clearRect(w+i-T(i*i+t/99),270-S(S(S(S(i/50)+t)+t)+t)*200,4,2)

Feb 23 2021 10:44 PM UTC

}// 135/140

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Pascal

function u(t) {

c.width|=t?(R+=4/(f=frame*4-7),R-=4/(f+2)):R=0
x.font="99px'",x.fillText("π ≈ "+R,314,628)

Feb 23 2021 5:52 PM UTC

}// 90/140

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π infinite series

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Pascal

remix of d/21662 by u/Pascal

function u(t) {

for(c.width|=0,i=144;i--;x.fill(x.arc((X=i%16)*120+60,(i-X)*7.5+60,(.5+C(t-3.14)/2)*(7*C(i*i+t*2)+S(i*i/5+t))**2,0,7)))x.beginPath()

Feb 23 2021 4:49 PM UTC

}// 132/140

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circles

u/DaSpider

126... with(x)for(c.width|=i=144;i--;fill(arc((X=i%16)*120+60,(i-X)*7+60,(.5+C(t-3)/2)*(7*C(i*i+t*2)+S(i*i/5+t))**2,0,7)))beginPath()
u/danny@hille.dk

121: for(c.width|=i=144;i--;)x.beginPath(x.fill(x.arc((X=i%16)*120+60,(i-X)*7+60,(.5+C(t)/2)*(7*C(i*i+t*2)+S(i*i+t))**2,0,7)))
u/danny@hille.dk

112:for(c.width|=i=144;i--;)x.beginPath(x.fill(x.arc((X=i%16)*120+60,(i-X)*7+60,(.5+C(t)/2)*(7*C(i*i+t*2))**2,0,7)))
u/danny@hille.dk

last +S(i*i+t) didn't do much

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Pascal

remix of d/21744 by u/Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;c.style.filter=`invert(.9`,x.strokeStyle=`#0dd6`)x.lineTo(w+w*C(a=i*2+t)/(z=S(a)-3),540+w*S(a-t)*C(i)/z)
x.stroke()

Feb 23 2021 4:01 PM UTC

}// 140/140

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Pascal

function u(t) {

for(c.width|=w=i=1e3;i--;x.lineTo(w+w*(C(b)+C(i+t/2)*S(t)+C(a=i/2))/z*3,540+w*(S(i)*C(t/2)+S(a))/z*3))z=S(b=i+t)+10
x.stroke()

Feb 22 2021 10:20 PM UTC

}// 126/140

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