Dweets by u/DirtyDan

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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DirtyDan

remix of d/6645 by u/DirtyDan

function u(t) {

for(i=1;i<360;i++)x.fillStyle=`hsl(${i},99%,50%)`,R=532*S(t+i/180),x.fillRect(960+R*C(t+i)-4,540+R*S(t+i)-4,8,8)

Feb 4 2018 7:23 AM UTC

}// 112/140

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DirtyDan

remix of d/6644 by u/DirtyDan

function u(t) {

c.width+=0
x.globalCompositeOperation='xor';
for(i=0;i<300;i++)R=515*S(t+i/300*T(C(t))),x.fillRect(960+R*C(t+i)-25,540+R*S(t+i)-25,50,50)

Feb 1 2018 8:25 PM UTC

}// 137/140

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DirtyDan

function u(t) {

c.width+=0
x.globalCompositeOperation='xor';
for(i=0;i<300;i++)R=515*S(t+i/3000*6),x.fillRect(960+R*C(t+i)-25,540+R*S(t+i)-25,50,50)

Feb 1 2018 8:21 PM UTC

}// 132/140

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u/Purpzie

Managed to shorten this by 4 characters: for(c.width|=i=0,x.globalCompositeOperation='xor';i<300;i++)R=515*S(t+i/3e3*6),x.fillRect(960+R*C(t+i)-25,540+R*S(t+i)-25,50,50)

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DirtyDan

function u(t) {

x.globalCompositeOperation='xor';
x.fillRect(960+910*C(t)-25,540+515*S(t)*C(t)-25,50,50)

Feb 1 2018 3:59 AM UTC

}// 88/140

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DirtyDan

remix of d/6447 by u/DirtyDan

function u(t) {

c.width+=0;p=Math.PI*2
for(i=b=540;i>0;i-=.5)x.beginPath(),x.ellipse(960+760*S(t+i*2.5),i*2+80*S(i/b*p),200,50,i/b*T(t)+t*p,0,p),x.stroke()

Feb 1 2018 3:30 AM UTC

}// 139/140

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DirtyDan

remix of d/6614 by u/akm

function u(t) {

for(i=0,c.width=1920,π=Math.PI*2,r=540;i++<180;a=3*i*S(t),x.ellipse(960,r,a<0?-a:a,r,1.5*i*π/9+i/180*π*t,π*C(t),π),x.stroke())x.beginPath()

Feb 1 2018 3:02 AM UTC

}// 139/140

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DirtyDan

function u(t) {

c.width+=0
f=.1
p=44/7
a=540
x.beginPath()
for(i=0;i<a;i+=4)
{
for(j=0;j<62;j++)
x.lineTo(960+C(j*f+t)*a,a+S(j*f+i/a*p)*i)
}
x.stroke()

Jan 25 2018 2:30 AM UTC

}// 136/140

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u/BuRRak

147 characters?

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DirtyDan

remix of d/6409 by u/DirtyDan

function u(t) {

c.width=1920
for(i=b=540;i>0;i-=.5)x.beginPath(),x.ellipse(a=960+i*S(t+i*2.5),i*2,i/b*200,i/b*50,0,0,44/7),x.stroke()

Jan 25 2018 1:40 AM UTC

}// 117/140

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Made huge improvements on the original

u/@no_identd

Remix: https://www.dwitter.net/d/6449

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DirtyDan

remix of d/6409 by u/DirtyDan

function u(t) {

c.width=1920
x.globalCompositeOperation='xor'
for(i=b=540;i>0;i-=3)x.beginPath(),x.ellipse(960+i*S(t+i),i*2,i/b*99,i/b*50,0,0,44/7),x.fill()

Jan 24 2018 8:25 PM UTC

}// 140/140

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u/Qwitter

Mercurial
u/Qwitter

like ⚚
u/donbright

snakes!

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DirtyDan

function u(t) {

c.width=1920
x.lineWidth=3
for(i=540;i>0;i-=2)
x.ellipse(a=960+i*S(t+i*2.5),i*2,i/540*200,i/540*50,0,0,44/7),x.moveTo(a,(i+2)*2)
x.stroke()

Jan 24 2018 5:20 AM UTC

}// 139/140

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See d/6447

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