Dweets awesomed by u/hypothete

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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mxfh

function u(t) {

w=960,c.width=w*2
for(i=s=~~(t*60+t)%360,x.setTransform(p=Math.PI,a=p/s,0,p,w,w/2);i--;x.rect(d=s,-d/4,w,w))x.rotate(a*2)
x.fill("evenodd")

Mar 15 2017 12:19 AM UTC

}// 139/140

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seizure warning

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donbright

remix of d/1399 by u/Kalanchoe

function u(t) {

c.width^=0
t?o.push({X:1e3,Y:500,U:9*S(t),V:t%9}):o=[]
o.map(a=>{a.X+=a.U+=a.X>1e3?-.1:.1,a.Y+=a.V+=a.Y>500?-.1:.1,x.fillRect(a.X,a.Y,9,9)})

Mar 15 2017 12:03 AM UTC

}// 140/140

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hypothete

function u(t) {

x.fillStyle=R();x.fillRect(0,0,w=c.width,h=c.height);
x.fillStyle=R(9,9,9);x.font='40em a';x.fillText('🐍',w/2,h*.8);

Mar 14 2017 3:51 AM UTC

}// 116/140

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mxfh

remix of d/2117 by u/mxfh

function u(t) {

x.setTransform(f=67.5,0,0,f,8*f,8*f);i=~~t;r=i<4;x.rotate(Math.PI/2*i);x.fillStyle=r?'#006EB6':'#EF3340';x.fillRect(l=r?-2:-1,l,r?4:2,f)

Mar 14 2017 3:33 AM UTC

}// 136/140

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http://www.norden.org/en/fakta-om-norden-1/t…

u/iverjo

#flag

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mxfh

remix of d/2118 by u/mxfh

function u(t) {

x.setTransform(f=90,0,0,f,7*f,6*f);x.fillStyle='#EF3340';x.ellipse(0,0,4,4,0,0,2*Math.PI);x.rect(-7,0,f,f);x.fill("evenodd")

Mar 14 2017 3:23 AM UTC

}// 124/140

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http://www.norden.org/en/fakta-om-norden-1/t…

u/iverjo

#flag
u/jpthinker

Go Greenland!!

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hypothete

function u(t) {

d=new ImageData(w=c.width=255,e=144)
for(i=w*e;i--;)d.data.set([w-(i%w),w*(i/w)/e,i%w,w],i*4);
x.putImageData(d,0,0)

Mar 13 2017 7:17 AM UTC

}// 116/140

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hypothete

remix of d/2091 by u/hypothete

function u(t) {

e=144;d=new ImageData(w=c.width=255,e);
for(i=w*e;i--;){
c=(((i%w)-w/2)**2+((i/w)-e/2)**2)%w;
d.data.set([c],i*4+3)}
x.putImageData(d,0,0)

Mar 13 2017 6:28 AM UTC

}// 138/140

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u/donbright

seems nice and fast for animations.. e=144;d=new ImageData(w=c.width=255,e); for(i=w*e;i--;){ c=S(t)*(i%w)**2+C(t)*(i/w)**2; d.data.set([c%w],i*4+3)} x.putImageData(d,0,0)

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hypothete

remix of d/2069 by u/veubeke

function u(t) {

e=144;f=1/9;d=new ImageData(w=c.width=255,e);
for(i=w*e;i--;){
c=t*w*(C(f*i%w)+S(f*i/w))%w;
d.data.set([c,c,c,w],i*4)}
x.putImageData(d,0,0)

Mar 13 2017 6:17 AM UTC

}// 140/140

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recursive

function u(t) {

t||(g=h=[])
for(n=i=960;--i+n;x.fillRect(i/d+n,(4-g)*99/d,9,99))h[i]=g=(g+h[i-1]+S(n*g)/9)/2||1,x.fillStyle=R(q=3*(t+9)*g,q,q*q>>7),d=1-t/30

Mar 13 2017 4:23 AM UTC

}// 140/140

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Rough surface

u/IV

It's like watching Bob Ross: 'happy little trees; anywhere you feel like...'

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mxfh

function u(t) {

b=1;h=1080;w=960;for(i=l=2*w;i--;b=!b,x.fillStyle=b?"#000":"#FFF"){x.fillRect(i+b,l,2,C(i/w-1)**2**S(i/w+t)*-h+b)}x.drawImage(c,0,-1,l,h)

Mar 13 2017 4:03 AM UTC

}// 137/140

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u/recursive

Looks really good in fullscreen

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