Dweets awesomed by u/danny@hille.dk

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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Xen

remix of d/21891 by u/danny@hille.dk

function u(t) {

for(i=2e3,c.width=w=60;i--;)x.fillRect(X=i%w,Y=i/w,T(Y+t*w^X),.1)

Mar 10 2021 11:10 PM UTC

}// 65/140

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chain again cloudy-texture-ish-thingy

u/danny@hille.dk

Love it!
u/Xen

just my beer level or do i see lots of cats faces?
u/erin

wow!!

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danny@hille.dk

remix of d/21890 by u/danny@hille.dk

function u(t) {

for(i=678,c.width=w=32;i--;c.style.imageRendering='pixelated')x.fillRect(X=i%w,Y=i/32,T(Y-t*9^X),1)

Mar 10 2021 8:37 PM UTC

}// 99/140

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crisp edges d/21890 - keeping the chain alive :-)

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danny@hille.dk

remix of d/21882 by u/Xen

function u(t) {

for(i=678,c.width=w=32;i--;)x.fillRect(X=i%w,Y=i/32,T(Y-t*9^X),1)

Mar 10 2021 8:34 PM UTC

}// 65/140

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chain remix - ultra lo-res in only 65 bytes

u/danny@hille.dk

'Exactly like playing zelda, on an old black and white telly :-P
u/danny@hille.dk

if you want a less glitchy version => for(i=678,c.width=w=32;i--;)x.fillRect(X=i%w,Y=i>>5,T(Y-t*9^X),1) #I❤️glitches

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erin

remix of d/19542 by u/IV

function u(t) {

for(w=i=960;i--;)D=S(w*i+t),X=S(D),Y=C(i*i),x.fillRect(w+X/t*w,w/2+Y/t*w,s=99/t,s),x.fillStyle=`hsla(${D*99},99%,50%,1`

Mar 10 2021 7:47 PM UTC

}// 119/140

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colored tunnel #tunnel

u/danny@hille.dk

Looks realy nice

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nerdworld

function u(t) {

r=a=>255*Math.random();x.fillStyle=R(r(),r(),r());x.font="99px tahoma";c.onmousemove=e=>{x.fillText("ThoughtWorks",e.x/.3-300,e.y/.3+50)}

Mar 10 2021 2:06 PM UTC

}// 137/140

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ThoughtWorks challenge (Bring back the javascript mouse followers!)

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BackendForth

function u(t) {

c.onmousemove=(e)=>{c.width=1920
for(i=1920;i-=64;)for(j=1080;j-=54;)p=e.x*3.5-i,q=e.y*3.5-j,r=(p*p+q*q)**.5/99,x.fillRect(i-p/r,j-q/r,9,9)}

Mar 10 2021 2:37 AM UTC

}// 140/140

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Mouseover, please!

u/erin

this is gonna b one of my fav dweets i think
u/smtsjhr

good fun!
u/danny@hille.dk

Nice!
u/Xen

nicely!
u/aleamb

#interactive

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danny@hille.dk

remix of d/21876 by u/Xen

function u(t) {

for(t?i=768:c.width=w=32,c.style.filter='contrast(4';i--;x.fillRect(X,Y,1,1))x.fillStyle=R(m=S((X=i%w)^t*w+(Y=i/w))*i,m/2)

Mar 8 2021 11:33 PM UTC

}// 122/140

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lo-res #fire?

u/Xen

nice!

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Xen

remix of d/21870 by u/danny@hille.dk

function u(t) {

for(i=1e4,w=128;i--;x.fillRect(X*15,Y*14,15,14))x.fillStyle=R(m=C((Y=i>>7)-t*t*w^(X=i%w))*255,Y,-m,.2)

Mar 8 2021 8:46 PM UTC

}// 102/140

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Remix remix

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nerdworld

function u(t) {

r=Math.random;x.fillStyle=R(r()*255,r()*255,r()*255);c.onmousemove=function(e){x.fillRect(e.x*c.width/569,e.y*c.height/320,r()*100,r()*100)}

Mar 8 2021 7:05 PM UTC

}// 140/140

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Draw with your mouse!

Show more comments…
u/danny@hille.dk

Cool, and welcome
u/danny@hille.dk

Here is a golfing tip: use arrow functions and shave off a few bytes r=(a=255)=>a*Math.random();x.fillStyle=R(r(),r(),r());c.onmousemove=e=>x.fillRect(e.x*c.width/569,e.y*c.height/320,r(100),r(100))
u/danny@hille.dk

if you want to make some compromises, you could make your random function always return 255 like this: <r=a=>266*Math.random();x.fillStyle=R(r(),r(),r());c.onmousemove=e=>x.fillRect(e.x*c.width/569,e.y*c.height/320,r(),r())
u/danny@hille.dk

Now you have a whopping 21 bytes to play with :-)
u/Xen

quick 110: r=a=>266*Math.random();x.fillStyle=R(r(),r(),r());c.onmousemove=e=>x.fillRect(e.x/.3,e.y/.3,r(),r())
u/Xen

100 :-( i cant count lol
u/danny@hille.dk

Well done u/Xen, nice trick with the 1/3 ratio correction, you did leave my 266 typo though :-)
u/nerdworld

Thanks for all the suggestions! Never really used arrow functions before, already used them in new one! Thanks a lot!

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rodrigo.siqueira

remix of d/21867 by u/intrinsic

function u(t) {

c.style.filter=`invert(1`
for(i=2e3,z=-400,y=540,d=0;i--;d+=S(i|1e3)*9+S(i+t/9)*9)y+=C(d)*8,x.fillRect(z+=C(d/10)+1,y,t<5,70)

Mar 8 2021 6:23 PM UTC

}// 125/140

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Based on Vanguard (Atari game). A cave inside the asteroid where the Gond makes his home.

u/rodrigo.siqueira

Exploring Gond's cave (based on Vanguard #Atari #game)

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