Dweets awesomed by u/iverjo

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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doof

remix of d/3899 by u/doof

function u(t) {

c.width^=0
x.translate(960,540)
x.beginPath()
for(i=5;i-->0;x.rotate(t),x.arc(S(t)*200,0,300,0,7));
x.fill('evenodd')

Dec 27 2017 7:17 AM UTC

}// 117/140

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Exquisite

function u(t) {

if(!t)c.addEventListener('mousemove',e=>{r=c.getBoundingClientRect();x.lineTo(e.clientX*1920/r.width,e.clientY*1080/r.height)});x.stroke()

Dec 27 2017 6:45 AM UTC

}// 138/140

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Mouse over for lines :)

u/iverjo

Nice. Even works correctly in fullscreen :)
u/iverjo

#interactive

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CliffJonesJr

function u(t) {

t||(Y=y=960,Z=z=540,γ=ζ=0)
c.width=1920
y+=γ+=S(t)+(Y-y)*.002
z+=ζ+=C(t)+(Z-z)*.005
x.font=(90+z/10)+'px A'
x.fillText(z<700?'😀':'😃',y,z)

Dec 27 2017 6:36 AM UTC

}// 137/140

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u/mohd-akram

Like one of those annoying video game bosses :D
u/CliffJonesJr

I was originally going to make the motion random, but that char limit is tough! Looks pretty random at least.

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doof

function u(t) {

c.width^=0
x.translate(960,540)
x.globalCompositeOperation='xor'
for(i=t;i-->0;x.rotate(t),x.beginPath(),x.arc(S(t)*99,0,400,0,7),x.fill());

Dec 27 2017 6:09 AM UTC

}// 140/140

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Exquisite

function u(t) {

c.width=1920;q=999;for(i=1;i<q;i++){r=10+i*0.01;x.fillStyle=R(i%20,i%225,i%30);x.fillRect(960+i*C(i),540+i*0.5+C(C(t*0.6)*i*0.015)*80,r,r);}

Dec 27 2017 6:09 AM UTC

}// 140/140

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netule

function u(t) {

y=t*.1,a=C(y),b=S(y),d=~~t%2?1:-1
x.rotate(d*b*15*.017)
x.transform(a,b,-b,a,960,540)
x.fillRect(0,0,d*a*.1,d*b*540)
x.resetTransform()

Dec 27 2017 6:03 AM UTC

}// 135/140

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futureperfect

function u(t) {

c.width=1920;r=Math.floor(t*60);for(b=1;b<110;b++){a=r;i=0;while(a>1){x.fillText(a,i*9,b*9);if(a%2===1){a=3*a+1;}else{a=a/2;}i+=1.5;}r++}

Dec 27 2017 5:55 AM UTC

}// 137/140

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A little midnight Collatz for you all

u/taupelink

#collatz

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jordan150000

remix of d/3760 by u/sadropol

function u(t) {

c.width|=0;for(i=1;i<3000;i+=6){b=2*t+i;o=200-(S(b+5)*126)%256;x.fillStyle=R(0,o,0,1);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 27 2017 5:47 AM UTC

}// 140/140

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tsell

function u(t) {

x.beginPath();for(i=2;i<6e3;x.arc(i+S(t),540+C(t),T(t)**i,0,7),x.lineWidth=i,x.strokeStyle=R(i%255,0,0,1),x.stroke(),i*=2);//laser!

Dec 27 2017 5:41 AM UTC

}// 131/140

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u/sigveseb

This looks great!
u/joeytwiddle

HAL are you feeling ok?

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letsbreelhere

remix of d/3857 by u/itsjustmustafa

function u(t) {

x.fillStyle='#000';x.fillRect(0,0,2e3,2e3);x.fillStyle="#ccc";for(i=0;i<2e3;i++)p=9*S(i)+9,x.fillRect(9*i-T(t)*p*9,p*999%1080,p+T(t)*p,p)

Dec 27 2017 5:29 AM UTC

}// 137/140

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Some hyperjumps before bed :)

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