Dweets awesomed by u/Lynx

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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KilledByAPixel

remix of d/19550 by u/tomxor

function u(t) {

for(c.width=w=127,i=7e3;i--;t?p&T[r=i+w+r%3]<1&&--T[i]&++T[r]:T[i]=r)p=T[i],x.fillRect(X=i&w,Y=i>>7,T[S(t*t*w)*w|0]=1,p/3),r=i*t^Y/14&X/9

Dec 21 2020 5:43 PM UTC

}// 137/140

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Snowed In

Show more comments…
u/DataMeta

super cool
u/KilledByAPixel

#snowflake
u/katkip

#powder physics type
u/Odog8

how does this work!?
u/KilledByAPixel

it is a cellular automata, each frame it tires to move the snow down and left or right randomly if the target cell is empty
u/Odog8

oh wow
u/tomxor

Wow nice! it's great how an effect can take on new meaning when finding a different way to frame it.
u/Qwitter

cool

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Lynx

function u(t) {

c.width+=0
for(i=0;i<1920;i++){X=i/100+t*10
x.fillRect(i-100-100*C(t*i),540+S(X)*100,10,10)
x.fillRect(i-100-100*S(t*i),540+C(X)*100,10,10)}

Dec 12 2020 2:49 PM UTC

}// 140/140

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glitchy snake [newbie - i feel like the two fillRect calls could be compressed as only C and S are different - how?]

u/pavel

S(x+i%2*pi/2) or (i%2?C:S)(x)

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ciaccodavide

remix of d/20965 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐱𒡷𪑴𪀨𮀩𮱦𪑬𫁓𭁹𫁥🐧𘱆𠠰𙰊𩡩𫁬𤡥𨱴𚀰𛀰𛀳𩐳𛀳𩐳𚐊𩡩𫁬𤱴𮑬𩐽𙰣𜀰𜀧𒡦𫱲𚁩🐹𞱩𛐭𞰩𫑯𭡥𥁯𚁨🐹𝠰𛁫🐵𝀰𚐬𨑲𨰨𪀬𪰬𝠰𚡩𛁴𛀶𛑩𚐊𩡩𫁬𚀧𩑶𩑮𫱤𩀧𚑽`.replace(/u../g,'')))

Dec 11 2020 6:20 PM UTC

}// 115/140

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Radioactive Radar

u/danny@hille.dk

nice
u/joeytwiddle

So #radioactive even the warning symbol is corrupted
u/magna

Stylish!

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Lynx

function u(t) {

x.fillStyle='darkred'
x.fillRect(0,0,1920,1080)
x.fillStyle='black';s=0
for(i=1;i<11;s=S(t*i++/5))x.fillRect(500+i*75,500,35,-(5+127*s*s))

Dec 8 2020 11:17 AM UTC

}// 138/140

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calm sine visualizer (newbie)

u/magna

Stylish!

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁩🐱𩐴𛁩𚐬𮀮𬱴𬡯𪱥𤱴𮑬𩐽𙱳𫡯𭰧𞱩𛐭𞱩𙐱𜡼𯁸𛡢𩑧𪑮𤁡𭁨𚁸𛡳𭁲𫱫𩐨𚐩𚑸𛡬𪑮𩑔𫰨𞐶𜀫𚁓𚁰👩𛰲𚐯𚁚🐨𪠽𬀯𝡼𜀩𙐷𛰸𜀰𚐪𚁬👩𙐲𛰵𩐳𚐫𚁪𛰳𜀫𤰨𭀯𝠩𚠹𚐥𜐴𛐷𚐯𦠬𝐴𜀫𚀨𪠪𚠳𛠱𚱴𚐥𞀭𝀫𠰨𬀩𛱚𚡬𚐯𦠩`.replace(/u../g,'')))

Dec 7 2020 8:01 PM UTC

}// 140/140

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rodrigo.siqueira

remix of d/19740 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=1e4;i--;f(0,0,260/(1+i%2),t*i))f=(X,Y,s,r)=>s>1?f(Y+s*S(r),X+s*C(r),s/(2+t),r*5):x.fillRect(X+940,Y+540,1,.4)

Dec 7 2020 1:02 PM UTC

}// 140/140

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White #snowflake #symmetry on black background

u/katkip

wow
u/andrea270872

Terrific. Looks like some kind of X-ray picture. Great

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MrHaila

remix of d/20928 by u/MrHaila

function u(t) {

å=40
c='_-'
x.globalAlpha=.3*(S(t*5)/2+1)
x.font='90px s'
for(i=0;i<å+t;i++){
x.translate(960, t*40)
x.rotate(i%3)
x.fillText(c,0,0)}

Dec 6 2020 11:27 PM UTC

}// 133/140

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Chaos theory. Experiment with å (20-50 is great) and c for epic variations!

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pavel

function u(t) {

for(w=i=c.width|=0,x.globalAlpha=.15;i--;x.fillText('❄',-4,-4))x.setTransform(s=i*i%63/7,0,0,s,(i+s*w/(1+9**C(t/3)))%w,(s/5*t+T(i*i))%2*600)

Dec 6 2020 4:36 AM UTC

}// 140/140

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Snowstorm

u/donbright

lovely
u/KilledByAPixel

#snowflake

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rodrigo.siqueira

remix of d/20922 by u/rodrigo.siqueira

function u(t) {

for(i=1080;i--;x.fillRect(0,i,1+i/t,1))Y=i/230,
h=300*S(Y%S(m=t/9%S(p=C(q=Y*S(Y/3-S(t)/3))))),
x.fillStyle=R(h*q,h*m,h*p)
x.drawImage(c,1,0)

Dec 5 2020 7:13 PM UTC

}// 140/140

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Variation of the scrolling version by u/danny@hille.dk

u/danny@hille.dk

Freaking Awesome
u/danny@hille.dk

I love the way it starts

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pavel

remix of d/20901 by u/pavel

function u(t) {

for(i=c.width|=p=g=>(g(0)?k&3:k/4)*200+130*g(.8+(~~k+k/4&1||-1)*(i%120*41/13+5*t));k=--i/120;)x.fillRect(560+p(S),240+p(C),9,9)

Dec 4 2020 9:12 PM UTC

}// 127/140

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Moving #illusion

u/pavel

Discovered this randomly when golfing the original. Not sure why it happens.
u/danny@hille.dk

cool effect: the "feature" is caused by not truncating k=--i/120 -> k=--i/120|0 disables this feature :-)
u/KilledByAPixel

👍
u/danny@hille.dk

better solution: for(i=c.width|=p=g=>(g(0)?k&3:~~k/4)*200+150*g((k&1||-1)*(i%120*41/13+5*t));k=--i/120;)x.fillRect(560+p(S),240+p(C),9,9)

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