Dweets awesomed by u/ds0

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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pavel

remix of d/9294 by u/cantelope

function u(t) {

for(i=w=c.width|=q=6.2832;i--;x.arc(960+S(p=(i>>1)*q/9-t)/Z*w,540+C(p)/Z*w,Z*Z,a=-t%q,a))Z=2+(i-1&-2)%98-8*t%2,i%98||x.beginPath(x.stroke())

Feb 6 2019 2:02 AM UTC

}// 140/140

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#uncompressed

u/cantelope

gotta hand it to you 👏
u/pavel

Playing it safe on the arc angle, modding it by 2pi just to avoid the bug on Safari.

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ds0

function u(t) {

x.fillStyle=R((S(t)+3)*128,(C(t)+2.5)*64,(S(t)+3)*64)
x.fillRect((frame*50)%1920,(S(t*10)*300)+540,20,100)

Feb 5 2019 7:12 PM UTC

}// 106/140

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mic check one two

u/Xen

nice style

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joeytwiddle

function u(t) {

c.width|=0;for(i=9;i--;)x.save(),x.translate(115+280*i,400+80*i-9*i*i),x.scale(20,20),x.rotate(S(t-i/5)/4),x.fillText('🏮',-6,6),x.restore()

Feb 5 2019 5:57 PM UTC

}// 139/140

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u/lionleaf

Lunar New Year!
u/joeytwiddle

Curious. Chrome only keeps the resolution now, when the text is horizontal.

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robbyg

remix of d/12170 by u/robbyg

function u(t) {

c.width|=0
for(i=9;i--;)for(v=200;v--;)x.fillStyle=`hsl(${i*40+v+t*40},50%,50%`,x.fillRect(520+S(t+v/50)*400+i*100,440+v,50*v/150,1)

Feb 5 2019 3:47 PM UTC

}// 132/140

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Rainbow weaving perspective #default that is hopefully not derivative. :D

u/DataMeta

Smoooth
u/DataMeta

#colors

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katkip

remix of d/12164 by u/katkip

function u(t) {

c.width*=1;f=(X,s)=>{if(s>3)x.fillRect(960+S(X)*s,540+C(X)*s,9,9),f(X-0.02*C(t+X*T(X)),s-2)}
f(520+t,500)

Feb 5 2019 8:29 AM UTC

}// 105/140

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Electrical lighting trajectory simulation V2, high frequency current #recursive #recursion

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robbyg

remix of d/12143 by u/katkip

function u(t) {

c.width^=0;for(i=192;i--;)for(j=9;j--;x.fillStyle=`hsl(${h},50%,50%)`)x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)

Feb 4 2019 8:20 PM UTC

}// 133/140

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u/23_Skidoo

x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);for(i=192;i--;)for(j=9;j--;x.fillStyle=hsl(${h},50%,50%))x.fillRect(i*10,h=540-(S(t*2+i*3.12)*C(t+i+j/9)*j/4)*100,10,10)
u/23_Skidoo

Or, replace c.width^=0 with x.fillStyle="#fff3";x.fillRect(0,0,c.width,c.height);

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f8f82804

remix of d/12142 by u/f8f82804

function u(t) {

with(x)t||fillRect(t,t,a=5e3,a),setTransform(9,0,0,9,960,540),rotate(w=t&&w<a?w+2.4:1),fillStyle=`hsl(${t}rad 95% 50%`,fillRect(w**.5,0,2,2)

Feb 4 2019 7:57 PM UTC

}// 140/140

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#rainbow #phyllotaxis with #squares -- thanks to u/pavel

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joeytwiddle

function u(t) {

for(c.width|=i=999;i--;)a=i-t,h=i/580-.25,r=(h<1.2)*150+(h>0&&h<1)*400*S(h*3),x.fillStyle='#e'+i,x.fillRect(960+r*S(a),50+i+r*C(a)/5,70,30)

Feb 4 2019 3:17 PM UTC

}// 139/140

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Gong xi fa chai!

u/katkip

#cute
u/joeytwiddle

Happy Chinese New Year of the Pig!

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leoseccia

function u(t) {

c.width*=1;s=70;x.translate(960,540);x.strokeStyle="#F00";x.lineWidth=30;for(i=60;i--;)x.strokeRect(-i*s,-i*s,i*s*2,i*s*2),x.rotate(t*.1)

Feb 4 2019 11:19 AM UTC

}// 137/140

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saon

function u(t) {

c.width|=0;for(i=400;i--;)
x.fillRect(960+900*S(t+i),560+i*C(t)+i*C(i),10,i)

Feb 3 2019 7:21 PM UTC

}// 77/140

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