Hot dweets by u/DonKarlssonSan

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: #Opposites

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DonKarlssonSan

function u(t) {

r=_=>Math.random()*2e3
if(!t){x.globalCompositeOperation="xor"
for(i=0;i<99;i++){x.beginPath()
x.arc(r(),r(),r()/5+9,0,7)
x.fill()
}}

May 13 2021 11:30 PM UTC

}// 133/140

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XOR Circles

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DonKarlssonSan

remix of d/22680 by u/DonKarlssonSan

function u(t) {

c.width|=0
x.translate(960,540)
x.lineWidth=6
x.rotate(0.03)
x.strokeRect(C(t)*(r=400),S(t)*r,s=200,s)
x.strokeRect(C(t-3)*r,S(t-3)*r,s,s)

Apr 30 2021 1:55 PM UTC

}// 139/140

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DonKarlssonSan

remix of d/22679 by u/DonKarlssonSan

function u(t) {

c.width|=0
x.translate(960,540)
x.lineWidth=6
x.rotate(0.03)
x.strokeRect(C(t)*(r=400),S(t)*r,s=200,s)
x.strokeRect(C(t-3)*r,S(t-2)*r,s,s)

Apr 30 2021 1:54 PM UTC

}// 139/140

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Moving Squares

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DonKarlssonSan

remix of d/5714 by u/DonKarlssonSan

function u(t) {

t||x.translate(X=960,540)
x.lineWidth=6
x.rotate(0.03)

x.strokeRect(C(t)*400,S(t)*400,200,200)

Apr 30 2021 1:47 PM UTC

}// 96/140

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DonKarlssonSan

function u(t) {

c.width=1920
for(X=0;X<1920;X++) {
  for(y=0;y<70;y++) {
    x.fillStyle=R((S((X+y*3+t)/50)+1)*127,t,0,1)
    x.fillRect(X,y+500,1,1) 
  }
}

Jan 12 2021 6:00 PM UTC

}// 140/140

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Candy Cane

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DonKarlssonSan

remix of d/6084 by u/DonKarlssonSan

function u(t) {

t?1:x.translate(960,540)
for(i=799;i--;x.fillRect(i*1.5,0,9,9))x.rotate(i/5e4),x.fillStyle=`hsl(${i+t*69},90%,66%)`

Jan 15 2018 10:26 PM UTC

}// 115/140

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DonKarlssonSan

remix of d/6078 by u/DonKarlssonSan

function u(t) {

x.strokeStyle=R(f=T(t)*99%256,f,f,1)
r=m=>Math.random()*m
x.beginPath()
for(i=99;i--;x.stroke())
x.moveTo(960,580),
x.lineTo(r(2e3),r(1e3))

Jan 15 2018 8:14 PM UTC

}// 139/140

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DonKarlssonSan

remix of d/6041 by u/DonKarlssonSan

function u(t) {

t?x.stroke():(X=9,Y=9)
E=(n,i,a)=>n<=i?i:n>=a?a:n
r=p=>Math.random()*40-20+S(X/60)
for(i=99;i--;)x.lineTo(X=E(X+r(),0,2e3),Y=E(Y+r(),0,1e3))

Jan 15 2018 6:34 PM UTC

}// 140/140

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Random Walker With Stripe Pattern

u/iverjo

#random

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DonKarlssonSan

function u(t) {

c.width|=0
x.fillStyle="#F068"
a=4+t/400
x.translate(960,540)
for(i=599;i--;x.fillRect(i*2,0,30,60))x.rotate(a)

Jan 15 2018 9:54 PM UTC

}// 111/140

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DonKarlssonSan

remix of d/6038 by u/DonKarlssonSan

function u(t) {

E=(n,i,a)=>n<=i?i:n>=a?a:n
r=p=>Math.random()*80-40
t?x.lineTo(X=E(X+r(),0,1920),Y=E(Y+r(),0,1080)):(X=960,Y=540)
x.stroke()

Jan 14 2018 8:27 PM UTC

}// 124/140

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Constrained Random Walker with correct init code (thanks XEN!)

u/Xen

not a problem, looking good.
u/Qwitter

Drink a ton of coffee and etch the sketch !

dwitter.net | DonKarlssonSan (171)