Dweets awesomed by u/DataMeta

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: #Food

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robbyg

remix of d/15668 by u/mildlybean

function u(t) {

for(c.width=X=20;X--;)for(Y=11;Y--;)x.fillRect(X,Y,a=S(X+t-Y),C(Y+t+a))

Sep 12 2019 8:51 PM UTC

}// 71/140

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Beats me. I just thought it looked pretty.

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Blacklink

function u(t) {

c.width=b=1920
for(var a=0;a<b;a++){m=C(.01*a)*90+99
v=S(t+S(t)*.01*a)*S(t)*300+540
x.fillRect(a,0,1,v-m)
x.fillRect(a,v+m,1,1080-v+m)}

Sep 12 2019 10:06 AM UTC

}// 135/140

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Just a weird test thing

u/0x04

Maybe weird, but cool 😎

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mildlybean

function u(t) {

t%=8;t=~~(t/2)+(~~t%2?t%1:0);F=f=>~~f?999-S:0;for(c.width|=i=4;i--;x.rect(460+F(i%3),41+F(i/2),S,S))S=(i^t?i<t:t%1)*333+333;x.fill`evenodd`;

Sep 10 2019 9:21 PM UTC

}// 140/140

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u/joeytwiddle

#loop

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rnbw

function u(t) {

for(c.width^=i=0;i++<2e3;x.fillRect(i,590+S(t*99+i/9)*9,3,9))x.fillRect(99+i%9*50,450-Math.abs(S(t*9+i%3))*29,25,99)
x.fillRect(0,545,2e3,9)

Sep 10 2019 12:55 PM UTC

}// 140/140

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quickly! to the canvas!

u/0x04

🏃‍♂️🏃‍♂️🏃‍♂️😁
u/tomxor

looool 😁
u/yonatan

for(i=c.width|=0;i--;)x.fillRect(...i<9?[99+i*50,450-S(t*9+i%3)**2*29,25,99]:[i,i%2?590+S(t*99+i/9)*9:545,2,9]) - animate their arrival in 29 chars :P
u/yonatan

#default
u/joeytwiddle

Makes me wonder ... what is off screen, chasing the default?

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nystrand

function u(t) {

for(r=777,i=2e3;i--;x.fillRect(a+r,b+r,29,19))a=t*i*i*r%2e3-r,b=i-r,g=i/3+S(t)*a/24,x.fillStyle=R(A=S(t+a/g)*S(C(t/2)+t-b/g)*i,A+a/8,A+b,.3)

Sep 9 2019 7:02 PM UTC

}// 140/140

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Show more comments…
u/yonatan

Nice one! How does it work?
u/yonatan

Oh I get it, a and b are coords used to generate the pixel color with g as tilt
u/pavel

very nice
u/13thptr

great style
u/aleamb

fucking awesome!!
u/KilledByAPixel

👍
u/magna

wowza
u/iverjo

Wow, very nice!
u/vain

Incredible

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WasifBoomz

function u(t) {

x.setLineDash([50, 50]);
x.strokeRect(0,50*t,50*t,50*t)
x.lineWidth=5

Sep 9 2019 3:56 PM UTC

}// 69/140

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Xen

function u(t) {

t?x.drawImage(c,C(t),S(t)):c.width=59
x.strokeStyle="#"+frame
x.strokeText("Not Gone",9,19)

Sep 8 2019 11:19 PM UTC

}// 91/140

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Sny_de_Treves

function u(t) {

c.width=1920
for(i=0;i<6;i++){
a=100*(S(i+5*t)+C(i+5*t));
x.arc(1000+S(t*i)*a,500+C(t*i)*a,50,0,2*Math.PI);x.stroke();
}

Sep 8 2019 8:26 PM UTC

}// 120/140

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#juggling

u/joeytwiddle

Every day I'm jugglin'

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rodrigo.siqueira

remix of d/15632 by u/rodrigo.siqueira

function u(t) {

if(t<20)for(i=d=e=f=5e3;i--;x.fillRect(d*z-500,e*z,1,1))[d,e,f]=[(r=Math.random(z=99)*z|3)/5-3/(.2+r%3)*(-30/d)*2,.8*r%15-119*.5/C(d)/d/f,d]

Sep 8 2019 5:01 PM UTC

}// 140/140

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Decomposition of geometric waves

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taupelink

remix of d/15630 by u/taupelink

function u(t) {

for(i=d=e=f=1e3;i--;x.fillRect(d*z,e*z,h=f/(1+f),h))[d,e,f]=[(r=Math.random(z=99)*z|0)/5+C(d/8-r/3)/f,r%11-r%5%2-f*S(d/9),.9**(r%7-3)+.1/f]

Sep 8 2019 4:15 PM UTC

}// 139/140

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d/15649

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