Dweets by u/travisdoesmath

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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travisdoesmath

remix of d/6795 by u/bschwb

function u(t) {

c.width|=0
x.lineWidth=9
x.beginPath()
for(i=t*99-600;i<t*99;)z=.01*i++,x.lineTo(200*(5+S(z+t)+S(4*z+t)),200*(3+C(z+t)+C(4*z+t)))
x.stroke()

Feb 8 2018 2:29 PM UTC

}// 140/140

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travisdoesmath

remix of d/6117 by u/Qwitter

function u(t) {

w=500;c.width=2*w;x.font='99px A'
x.fillText('AWESOME!',w+99*C(5*t),350);for(i=12;i--;)for(k=4;k--;)x.drawImage(c,k*k%2*w,k*(k-1)/2*w,w,540)

Jan 17 2018 9:52 AM UTC

}// 140/140

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golfed down a bit for an appropriate response to d/6117

u/Qwitter

Thanks, thats alot of awesomes, and thanks for the golf tips!

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travisdoesmath

function u(t) {

a=_=>Math.abs(_),r=500,s=9
x.globalCompositeOperation='xor'
x.beginPath()
x.arc(C(s*t)*r+860,S(s*t)*r+540,a(T(t*7)*s),0,7)
x.fill()

Jan 16 2018 12:59 AM UTC

}// 131/140

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It's like art deco and op art happened at the same time on Gallifrey

u/Qwitter

Pretty

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travisdoesmath

function u(t) {

_=(a,n)=>(a>>n)%2
for(i=0;i<213;i++)for(j=0;j<120;j++)(_(i,3)||_(j,3))&&_(i+j,2)^_(i,3)||_(i,3)*_(j,3)==1?x.fillRect(i*9,j*9,9,9):0

Jan 3 2018 7:33 AM UTC

}// 131/140

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I spent about a full day trying to figure out a bitmappy way to make a houndstooth pattern, but I couldn't get it under 140 characters! Decided to go the boolean logic route instead.

u/travisdoesmath

previous attempt (158 chars): p=[8,4,2,1,9,13,15,16,273,2321,3345,3857,4113,2065,1041,529].map(_=>_*15) for(i=0;i<213;i++)for(j=0;j<120;j++)(p[j%16]>>(i%16))%2==0?x.fillRect(i*9,j*9,9,9):0
u/trupples

Nice one!
u/RomanW

I just posted remix #5365. I've been experimenting with converting UTF characters to binary data. See also my other dweets :)

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travisdoesmath

remix of d/5191 by u/travisdoesmath

function u(t) {

a=256;
for(i=1;i<1024;i++) {
  x.fillStyle = R(12*t%a,12*t%a,16*t%a)
  x.fillRect(((60*t ^ i)%1024)+448, 28+i, 1, 1)
}

Jan 2 2018 3:20 AM UTC

}// 118/140

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u/donbright

oooh, def one of my favorite sierpinski - ish...
u/quuxman

such wow

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travisdoesmath

function u(t) {

a=256;b=8
for(i=1;i<128;i++) {
  x.fillStyle = R(60*t%a,120*t%a,180*t%a)
  x.fillRect(((60*t^i)%128)*b+448, 28+i*b, b, b)
}

Jan 2 2018 2:35 AM UTC

}// 124/140

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u/nickd3000

This is really cool, nice magic to find the x Coordinate
u/Xen

love it

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travisdoesmath

remix of d/4815 by u/travisdoesmath

function u(t) {

for(i=0;i<300;i++){x.fillStyle=R((i)%255,(i)%255,(i+20*t)%255);x.beginPath(),x.arc(960-i/9*S(i+t)*30,540+i/9*C(i+t)*30,i/2,0,6.28);x.fill()}

Dec 30 2017 6:01 AM UTC

}// 140/140

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u/crimbles

Remixed https://www.dwitter.net/d/5358

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travisdoesmath

function u(t) {

for(i=0;i<300;i++){x.fillStyle=R((i)%255,(i)%255,(i+20*t)%255);x.fillRect(960-i/9*S(i+t)*30-i/2,540+i/9*C(i+t)*30-i/2,i,i)}

Dec 30 2017 5:38 AM UTC

}// 123/140

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dwitter.net | travisdoesmath (124)