Top dweets this year

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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plmrry

function u(t) {

for(i=0;i<200;i++)x.fillStyle=R(200,S(t)*250,T(t)*250,.5);x.beginPath();x.arc(800+C(i+t*4)*500,540+S(i+t*3)*400,50+S(t+i)*10,0,5);x.fill()

Aug 27 2024 6:17 PM UTC

}// 138/140

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tem

remix of d/32292 by u/tem

function u(t) {

for(i=c.width|=2e3;i--;c.style.filter=`invert(`)x.fillRect(980+(j=i*(1+t/2e3))*S(j|0),540+j*C(j),s=i/23,s)

Aug 25 2024 12:16 PM UTC

}// 106/140

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animated spiral? (no color)

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tem

function u(t) {

x.fillRect(980+(e=t*t/5)*S(t),540+e*C(t),t,t)

Aug 22 2024 3:25 PM UTC

}// 45/140

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Spiral

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HardlyProductive

function u(t) {

f=(a)=>Math.floor(a*3.36/99)*99;
onmousemove=e=>{x.fillRect(f(e.x),f(e.y),90,90)};

Aug 19 2024 8:56 AM UTC

}// 82/140

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snake v2 - wip

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xem

function u(t) {

eval(unescape(escape`𨐽𜀻𨠽𚁨𛁺𚐽🡸𛡦𪑬𫁒𩑣𭀨𞐹𚰨𨐫𚰩𚠲𞐰𛀹𞐬𞐹𛁨𚠹𚐻𮀮𩡯𫡴🐢𜰹𬁸𘁡𘠻𮀮𩡩𫁬𥁥𮁴𚀢𤱏𥑒𠱅𘀨🠱𜀰𪰩𘀭𘁍𢑎𢑆𢑅𡀠𚀾𝐰𪰩𘀭𘁚𢑐𘀨𜐵𪰩𘀭𘁒𣱁𡁒𣱌𣁅𤠠𚀱𜰮𝑫𚐠𛐠𡑃𥀠𚀱𜰮𜁫𚐢𛀹𛀳𜀩𞱢𚀹𞐩𞱢𚀵𜀩𞱢𚀱𝐩𞱢𚀱𜰮𝐩𞱢𚀱𜰩`.replace(/u../g,'')))

Aug 9 2024 5:16 PM UTC

}// 140/140

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Typical #js13k #gamedev experience... don't be afraid to make a big game: after minification, zip, roadroller and ECT, your entry will easily fit in 13,312 bytes

u/cantelope

zip comes after roadroller ;)

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zadgy5534

function u(t) {

c.width=960
x.translate(w=480,w)
for(i=0;i<w*2;i+=.5){
x.fillRect(X=i*C(w*i+t),Y=i*S(w*i+t),5,5)
}x.fillStyle=(X,Y,X*Y)

Aug 8 2024 5:54 AM UTC

}// 119/140

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Basic spiral

u/cantelope

cool

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magna

remix of d/32176 by u/shandriy

function u(t) {

for(i=252;i--;x.drawImage(stats.dom.childNodes[(i&t)%3],i%12*160,(i/12|0)*96,160,96))x.globalAlpha=.01

Jul 29 2024 2:52 AM UTC

}// 102/140

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u/cantelope

h4x

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timakro

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𨠽𠠽𭠽𥠽𜀮𜐊𪀽𤰨𨠭𠠩𒡪👃𚁢𛑂𚐊𨠫👶𚰽𨐽𚀭𪀪𚁶𚡶𚡪𚱖𚡖𚐭𝑥𛐳𚠨𜠪𤰨𨠩𛑓𚁂𚐪𪠩𚐯𚀱𚱨𚠪𜠩𒡂𚰽𥠫👶𚡶𚡨𛑡𚡪𛐵𩐭𜰪𤰨𠠩𒡸𛡦𪑬𫁒𩑣𭀨𜠷𜀪𚁓𚁢𚐫𤰨𠠩𚐫𞐶𜀬𜠷𜀪𚁃𚁢𚐫𠰨𠠩𚐫𝐳𝐬𝐬𝐩`.replace(/u../g,'')))

Jul 27 2024 10:42 PM UTC

}// 129/140

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Double pendulum

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384.cz

function u(t) {

t?T.valueOf=_=>Math.random()*128:f=c.width=256
x.fillText(8,T,T)
for(i=f*4;i--;x.clearRect(0,T+T,f,.05))i<32&&x.drawImage(c,T,T,T,T)

Jul 19 2024 5:55 PM UTC

}// 132/140

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Clouds

u/taupelink

Cool! Charcoal effect

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DaSpider

remix of d/31802 by u/DaSpider

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𠐽𜠰𜀬𠠽𠐯𞀭𚁴𚠳𯀰𚐬𩠽𚁩𛁪𛁫𛁬𚐽🡻𮀮𩡩𫁬𤱴𮑬𩐽𦰧𨡬𭑥𙰬𙱹𩑬𫁯𭰧𛀧𬡥𩀧𧑛𪑝𞱸𛡦𪑬𫁒𩑣𭀨𪰬𞐪𪠬𞐪𫀬𞐹𚑽𞱦𚀰𛀰𛀰𛁂𚐻𩠨𜐬𝠬𜀬𠠩𞱦𚀰𛀴𛁔🐹𚰹𚠨𠠫𤰨𭀪𝠪𣑡𭁨𛡐𢐩𚐬𠐩𞱦𚀲𛀸𛁔𛁁𚐻𭁨𬡯𭰠𠠭𜠰𝀴`.replace(/u../g,'')))

Jul 14 2024 2:30 AM UTC

}// 136/140

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🇺🇦 x 🇷🇺 update

Show more comments…
u/384.cz

:-(
u/384.cz

kinda dumb
u/joeytwiddle

#ukraine #russia #flag I like it (the animation, not the war)
u/txzl

The worst demo I've seen so far. Hope you will get banned
u/rsc

You think this is funny? What's next, a demo about bombing a children's hospital?
u/cantelope

shakes fist at everyone