Dweets awesomed by u/Tekmap

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: #Food

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rodrigo.siqueira

function u(t) {

c.width^=0
for(y=-4;y<4;y+=.1){
for(X=-4;X<4;X+=.1){
x.fillRect(960+X*210*S(t*.6)+y*18,560-S(X*X+y*y)/(X*X+y*y)*240*S(4*t)+y*85*S(t),3,3)
}}

Oct 13 2018 8:44 PM UTC

}// 140/140

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3D Sombrero Equation

u/aleamb

cool!!

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Purpzie

remix of d/4329 by u/retera

function u(t) {

for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

Oct 12 2018 4:53 PM UTC

}// 119/140

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Combined 3 for loops into 1, shortening from 140 to 119 characters

u/donbright

awesome

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magna

remix of d/10320 by u/veubeke

function u(t) {

c.width^=0
for(i=190;i--;x.fillRect(-90,-30,180,60))x.setTransform(k=C(a=(S(t)/2+i%2*.5)*Math.PI),z=S(a),-z,k,120*(i/11|0),i%11*120)

Oct 12 2018 4:54 AM UTC

}// 132/140

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u/yonatan

124 with some constant-folding and pi approximation: c.width^=0;for(i=190;i--;x.fillRect(-90,-30,180,60))x.setTransform(k=C(a=(S(t)+i%2)*1.57),z=S(a),-z,k,120*(i/11|0),i%11*120)

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firegodjr

remix of d/9833 by u/prplz

function u(t) {

x.fillStyle='#0001'
x.fillRect(0,0,2e3,2e3)
for(i=70;i-=7;x.clearRect(C(q/2)*200+960+C(i)*250,S(q/2)*200+540+S(i)*250,9,9))q=t*4-i*2

Oct 11 2018 4:49 AM UTC

}// 132/140

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jylikangas

remix of d/7121 by u/jylikangas

function u(t) {

for(c.width=-1,Y=w=89;Y--;x[f](Y*9+w*S(t)-w,0,9,60+S(Y^w)*20))x[f='fillRect'](w-S(v=Y/w+t)*Y,w+799/Y,v*w&8?2e3/Y:x.fillStyle=R(Y*3,0,w),w/Y)

Oct 8 2018 8:29 PM UTC

}// 140/140

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OutRun: Neon City edition

Show more comments…
u/BalintCsala

#retro
u/katkip

#d3
u/f8f82804

#outrun
u/iverjo

Inspiring!
u/iverjo

#neon
u/donbright

!!!!!!!!
u/lionleaf

Incredible! #city #track #train
u/alien

wow
u/magna

Musical edition: https://dweetplayer.net/demo/v1/*/10287@190/…
u/rodrigo.siqueira

Similar to Atari's Enduro game with city skyline

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yonatan

function u(t) {

c.width=-1
for(i=2e3;i--;x.fillRect(150+C(--m)*r,30+i/15+S(m)*r/2,9,6))r=9+C(i/770)**2*44,x.fillStyle=R(a=S(m=i+t)**8*255+128,a*.7,a/4,i/66)

Oct 8 2018 7:42 AM UTC

}// 140/140

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http://zozuar.org/txt/chalice/

Show more comments…
u/BalintCsala

The scariest part of this halloween is how easily you can kill anyone's self-esteem
u/firegodjr

-10 self esteem but +50 knowledge with that nice write-up. Thanks for that :)
u/katkip

saint gral
u/hvianna

Awesome! Thanks for the tutorial!!
u/iverjo

Kudos for the write-up. I like that I can see the result of the code in each revision
u/BirdsTweetCodersDweet

Yeah, these write-up tutorials showing the step-by-step changes in the code are amazing... Thanks!
u/BirdsTweetCodersDweet

P.S I wouldn't say it "devolved" into a demo - demos are good!
u/joeytwiddle

#model #lighting #holygrail

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BirdsTweetCodersDweet

function u(t) {

with(x)beginPath(fillStyle='#fff'),shadowColor=`hsl(${t*90} 99%50%)`,shadowBlur=25,ellipse(960,540,(S(t)*20)**2,(C(t)*20)**2,0,0,7,0),fill()

Oct 5 2018 6:02 PM UTC

}// 140/140

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Magic orb

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sChiab8

function u(t) {

c.width=1920
x.lineWidth=9
x.beginPath()
for(i=0;i<25;i++)
x.lineTo(S(i+t)*500+960,C(i*30+t)*500+540)
x.closePath()
x.stroke()

Oct 5 2018 2:38 PM UTC

}// 128/140

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path

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donbright

remix of d/10243 by u/cantelope

function u(t) {

for(c.width^=з=0,M=[ф=1,п=ф];з++-12;){
M.push(п+=M[з-ф])
for(A=6.3;A>0;A-=(t+.1)/M[з])
x.fillRect(1e3+39*з*C(A),500+39*з*S(A),7,7)
}

Oct 5 2018 4:43 AM UTC

}// 132/140

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fibboclock?

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prplz

remix of d/9912 by u/prplz

function u(t) {

for(c.width|=0,i=17e3+t*99;i>0;i-=100)x.fillRect(i%1920,i%1080,i%99,i%99)

Oct 2 2018 5:40 AM UTC

}// 73/140

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u/iverjo

This reminds me of the old Windows 3.1 days

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