Dweets by u/tactical_retard

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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tactical_retard

function u(t) {

x[f="fillRect"](0,0,10,10)
x[f](10,0,10,10)
x[f](0,10,10,10)
x.drawImage(c,10*2**frame,0)
x.drawImage(c,-10*2**frame,10*2**frame)

Oct 7 2021 4:07 PM UTC

}// 129/140

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#drawimage #sierpinski

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tactical_retard

remix of d/23959 by u/tactical_retard

function u(t) {

if(!t){
s=256
for(i=s*s;i--;){X=0|i/s
Y=i%s
A=X-s/2
B=Y-s/2
d=(A*A+B*B)**.5%X&Y
x.fillStyle=R(b=d*64,b,b)
x.fillRect(X*7.5,Y*4.2,7.5,4.2)}}

Oct 4 2021 12:49 AM UTC

}// 139/140

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tactical_retard

remix of d/16274 by u/KilledByAPixel

function u(t) {

x.fillText(0,-t&t,t)

Oct 3 2021 12:18 AM UTC

}// 20/140

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one byte smaller

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tactical_retard

function u(t) {

c.width|=s=60
for(i=s*s;i--;r*r+j*j<4&&x.fillRect(X*s,Y*34,s,34)){X=0|i/s
Y=i%s
r=j=0
for(I=s;I--;j=2*m*j+Y/10-1)m=r,r=r*r-j*j+t%6-2-X/10}

Oct 2 2021 10:37 PM UTC

}// 138/140

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#mandelbrot spaceship

u/rodrigo.siqueira

Instead of r*r+j*j<4 you can use just r<4 , that's 6 characters less. In this low resolution there's no visible difference.

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tactical_retard

function u(t) {

s=128
f=frame
for(i=s*s;i--;x.fillRect(X*15,Y*8,15,8)){
X=0|i/s
Y=i%s
x.fillStyle=R(14>>f-466*239&436^441%200<<100*241<<Y%500>>f-Y%X+f)
}

Oct 1 2021 3:56 PM UTC

}// 137/140

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randomly generated XY brightness equation

u/tactical_retard

original: 14>>frame-466*239&436^441%200<<100*241<<Y%500>>frame-Y%X+frame>>frame%frame

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tactical_retard

function u(t) {

if(!t){
s=256
for(i=s*s;i--;){X=0|i/s
Y=i%s
A=X-s/2
B=Y-s/2
d=(A*A+B*B)**.5&X%Y
x.fillStyle=R(b=d*100,b,b)
x.fillRect(X*7.5,Y*4.2,7.5,4.2)}}

Sep 29 2021 3:45 PM UTC

}// 140/140

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#sierpinski

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tactical_retard

function u(t) {

with(x){moveTo(960,540),lineTo(960-C(t)*900,540-S(t)*900),stroke(),s=140;for(i=s*s;i--;fillRect(X,Y,1,1))X=0|i/s,Y=i%s,fillStyle=R(X*Y*2e7)}

Sep 28 2021 11:47 PM UTC

}// 140/140

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interesting how these moire patterns look like multiplication spirals

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tactical_retard

remix of d/18743 by u/DataMeta

function u(t) {

if(t<10){O=1/(t*2/160)
X=960+C(O*2)*10-O*6.5
Y=540+S(t*10)*10+O*6
x.font=O+"em'"
x.fillStyle=R(b=O**.5*t**t*10,b,b/10)
x.fillText("✺",X,Y)}

Sep 27 2021 12:28 AM UTC

}// 139/140

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tactical_retard

remix of d/23883 by u/donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X-Y)) x.fillRect(格*X,格*Y,格,格)

Sep 20 2021 2:00 PM UTC

}// 128/140

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they look wavy zoomed out but they are straight #illusion

u/rep_movsd

Nice - after staring a bit they look like ropes
u/ciaccodavide

when I scroll I can see some vertical lines and if I squint my eye I almost see a grid

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tactical_retard

function u(t) {

for(X=1920;X--;){
Y=frame

x.fillStyle=`hsl(${t*60*5},99%,50%`
x.fillRect(X,0,1,(X^Y) % ((X&Y)/1) )
}

x.drawImage(c,0,1)

Sep 17 2021 2:10 PM UTC

}// 121/140

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#sierpinski

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