Dweets awesomed by u/Qwitter

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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Xen

remix of d/21755 by u/danny@hille.dk

function u(t) {

for(w=i=600;i--;x.beginPath(x.fill(x.arc(1e3+C(i-r)*1e3,S(i/w)*r+500,60,0,7))))x.fillStyle=R(r=S(i+t)*w,r^w,-r,.01)

Feb 23 2021 10:59 PM UTC

}// 115/140

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-[Hazy Desert]-

u/Qwitter

awesome
u/Qwitter

awesome!
u/danny@hille.dk

Cool

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danny@hille.dk

remix of d/21749 by u/rodrigo.siqueira

function u(t) {

t?0:c.width=w=960,x.fillStyle='#0591'
for(x.fillRect(0,0,i=w,w);i-->-w;x.clearRect(w+i+T(i*i+t),270+S(i/9-t)*150*C(i/160),3,1));

Feb 23 2021 6:54 PM UTC

}// 128/140

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golf and remix

u/ivylab

Uuuuuuu, beautiful

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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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rodrigo.siqueira

remix of d/21736 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=960;i>-960;i--,x.clearRect(960+i+T(i*i+t),540+S(i/39-t)*350**C(i/99+S(i/22-t*2)),4,4))x.globalAlpha=.1

Feb 23 2021 4:47 PM UTC

}// 132/140

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Electrical sparking lines

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Pascal

remix of d/21743 by u/Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;x.strokeStyle=`#05a5`)x.lineTo(w+w*4*C(a=i-t)/(z=S(a)-6),540+w*(S(i*5)+2*S(i*8))/z*.8)
x.stroke()

Feb 22 2021 8:56 PM UTC

}// 123/140

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spinning #d3 thing

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anotherkitten

function u(t) {

for(i=0;i<239;x.fillRect(i&&i*9,i&&540+139*S(M=t*3+i/9)+90*C(t*2-i/39),i?-9:2e3,i++?S(i/76-t)**.5*190:2e3))x.fillStyle=R(i*2,i,i&&255,i||.1)

Feb 22 2021 7:27 PM UTC

}// 140/140

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u/Qwitter

thats friendly looking

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rodrigo.siqueira

remix of d/21725 by u/Pascal

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=w=400;i>-400;i--,x.clearRect(960+960*i/w,540+250*S(i/40-t)*C(t+S(i/9)+S(i+t))*S(t+i/99),6,6))x.globalAlpha=.1

Feb 22 2021 1:23 AM UTC

}// 139/140

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Wave-particle flow

u/Qwitter

cool!

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tomxor

remix of d/21734 by u/tomxor

function u(t) {

b='氀氀氀氀氀氀渀渀渀渀漀漀澀柀柠揸懿惿怿怏';eval(unescape(escape`𩡯𬠨𪐽𝠷𜠻𪐭𛐻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱴𚠸𜀫𦐪𝱽𘀹𞐥𝐰𙑠𚑢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐾🠵𚐾🠨𦀽𪐦𜐵𚐦𜐦𙡸𛡦𪑬𫁒𩑣𭀨𚁩𙠱𝠿𝀵𚱘𞠷𜰭𦀩🀼𝀬𜠴𚱙🀼𝀬𜐶𛀱𝠩`.replace(/u../g,'')))

Feb 21 2021 5:43 PM UTC

}// 133/140

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#retro #atari #GEM "Rainbow" #TOS 1.04 logo

u/tomxor

#pixelart
u/tomxor

Traced from a real TOS ROM running on Hatari to get the pixels right.
u/magna

Lovely!
u/New_Core

nice

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rodrigo.siqueira

remix of d/21721 by u/Xen

function u(t) {

for(c.width=i=1e3;i--;x.arc(500,300,i,K=i**(1.12+t/2e4)-t/3,K));x.stroke()

Feb 21 2021 3:52 AM UTC

}// 74/140

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Geometric sketches. The pentagon is turning clockwise and the triangle is turning counterclockwise.

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Pascal

remix of d/21723 by u/danny@hille.dk

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=w=400;i>-400;i--,x.clearRect(960+960*C(t*.7-i/w)*i/w,540+540*S(t*.7+i/w)*C(t+i/w)*i/w,9,9))x.globalAlpha=.1

Feb 20 2021 11:27 PM UTC

}// 137/140

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