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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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danny@hille.dk

function u(t) {

h=c.height|=0
x.font='7in a'
x.fillText('⛵',t*199%3e3-h,h)
x.fillText('🤡',f=540,h)
for(i=3;i--;)x.fillText('🎈',S(t-i)*99+f*i,h+C(t+i)*500)

Oct 12 2021 3:33 PM UTC

}// 139/140

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#ScaryMovies IT

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ciaccodavide

remix of d/24054 by u/ciaccodavide

function u(t) {

for(m=Math,i=1e4*(t<1);i--;)r=m.random,X=r(),Y=r(),d=m.hypot(j=.5-X,k=.27-Y),x.fillRect(2e3*X,2e3*Y,69-d*345,1);c.style=`margin:${r()}px`

Oct 12 2021 8:45 AM UTC

}// 137/140

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The Ring #ScaryMovies

u/ciaccodavide

maybe I should have used margin:${r()/2}px for a subtler shake

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pavel

remix of d/24072 by u/BackendForth

function u(t) {

for(i=c.width|=0;i-=8;)x.arc(X=960-99*S(t+=.03),540+i,200+i/8,2,8)
x.fill()
h=21*S(t+C(t))
for(j=2;j--;)x.clearRect(X-50+99*j,529-h,11,2*h)

Oct 11 2021 10:31 PM UTC

}// 139/140

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u/BackendForth

Nice! The blinking makes it much more life-like . . . unlife-like?

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vgel

function u(t) {

eval(unescape(escape`𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𪐽𜀬𜀬𨠽𜡥𜰬𨠬𮁛𩠽𙱦𪑬𫁓𭁹𫁥𙱝👒𚀰𛀰𛀰𛁱🐮𜀱𚐩𒡸𦱦𧐽𙱧𫱬𩀧𒡦𫱲𚀻𪐼𝁥𝀻𚑸𦱧𧐨𫠽𭑛𚰫𪑝🰿👩𙐲𩐲𚠱𜀬𫐽𭑛𚰫𪑝🰿👩𛰹𛀵𛀵𛁤🐨𤰨𫠪👱𚐫𤰨𫐪👱𚐩𛁵𦱩𛐱𧐭👤𚡃𚁮𚐪𤰨𭀪𝀩𛁵𦱩𧐭👤𚡃𚁭𚐪𤰨𭀯𝀩𚐠`.replace(/u../g,"")))

Oct 11 2021 10:05 PM UTC

}// 140/140

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migrations

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vgel

remix of d/24043 by u/vgel

function u(t) {

eval(unescape(escape`𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𪐽𜀬𜀬𨠽𜡥𜰬𨠬𮁛𩠽𙱦𪑬𫁓𭁹𫁥𙱝👒𚀰𛀰𛀰𛁱🐮𜀱𚐩𒡸𦱦𧐽𙱧𫱬𩀧𒡦𫱲𚀻𪐼𝁥𝀻𚑸𦱧𧐨𫠽𭑛𚰫𪑝🰿👩𙐲𩐲𚠱𜀬𫐽𭑛𚰫𪑝🰿👩𛰹𛀵𛀵𛁤🐨𤰨𫠪👱𚐫𤰨𫐪👱𚐩𚡓𚁴𛰲𚐬𭑛𪐭𜑝𛐽𩀪𠰨𫠩𛁵𦱩𧐭👤𚡃𚁭𚐩`.replace(/u../g,'')))

Oct 11 2021 9:33 PM UTC

}// 136/140

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differential fireworks

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yonatan

remix of d/24073 by u/pavel

function u(t) {

u=h=511;for(c.width|=k=0;k<2;k+=.02)for(i=u=u*5&h;w=i--/4;)x.fillRect(((k||S(i))+t/4)%1*h*5-h-u*T%w,T=h+(i&5?i-u:u-i),k?w:u,2+S(T>h&&w+t*9))

Oct 11 2021 8:36 PM UTC

}// 140/140

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Show more comments…
u/KilledByAPixel

nice!
u/yonatan

Thanks. A little too fast, should have been t/8 instead of t/4...
u/aemkei

Thought the same. t/8 is really a calm beauty!
u/yonatan

Yeah, my screen does 30Hz so I only notice it when exporting to a gif.
u/Joachim

I like the animated #water
u/magna

t/h/9*u for parallax
u/magna

Here we go: d/24088

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TGY

remix of d/24073 by u/pavel

function u(t) {

for(i=u=~u*7&511;w=i--/4;)x.fillRect(t*2e3-u*T%w,T=640+(i&5?i-u:u-i),w,1)

Oct 11 2021 8:30 PM UTC

}// 73/140

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ciaccodavide

remix of d/23983 by u/pavel

function u(t) {

for(c.width&=i=10368;i--;x.fillRect(i&127,i>>7,f(.7),1))f=n=>(z=5-i/3e3-3*n)>T(Math.hypot(i/64%2-1,i/5e3-n)*9-6*t)?f(n+.6+.3*S(t)):--z*.4

Oct 11 2021 8:13 PM UTC

}// 137/140

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ripple #raytracing #remix

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FireFly

function u(t) {

for(c.width&=i=1e4;i--;)'肁상낱ꁁႡ⁑ထ‥𝣝ﳽᐑ怉상ﳽ鲝ﳽ灡颱」'.codePointAt(i/128%32)-1>>(i&8?i%8^7:i%8)-~t%2*8&1||x.fillRect(i%128*S,i/8&-S,S,S=16)

Oct 11 2021 7:03 PM UTC

}// 140/140

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Space invaders! #invaders #bitmap

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scwaller

remix of d/13070 by u/Jezza

function u(t) {

a=n=>S(i-t*n)*64+192;for(i=26;i--;x.fillRect((t/i+S(t*2)*8+3)*99,0,99,8))x.fillStyle=R(a(3),a(5),a(7));x.drawImage(c,0,8);x.rotate(S(t)/1e4)

Oct 11 2021 6:59 PM UTC

}// 140/140

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Clicked random and remixed the first dweet

u/scwaller

I clicked random and this was the first dweet, thought it would be funny to remix although I'm not very good at it