Dweets by u/retera

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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retera

function u(t) {

c.width=2e3
r=200
t||(a=[])
v=C(t)
for(i=4;i--;)a.push([v*r+r,r*i+S(t/9)*v*r+r])
a.filter(o=>{x.fillRect(o[0],o[1],8,8);o[0]=(o[0]+3)%2e3})

Dec 30 2017 1:33 AM UTC

}// 139/140

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retera

function u(t) {

for(i=0;i<9;i++){x.fillStyle='red';x.fillRect(0, (i*2)*1080/13, 1920, 1080/13)}
x.fillStyle=R(0,100,220);
x.fillRect(0,0,580,580)

Dec 28 2017 10:41 PM UTC

}// 129/140

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u/Lazy1337

#flag

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retera

function u(t) {

x.fillStyle=R(t*8,255-t*8,255-t*20);
for(j=0;j<t;j++)t%20<10?x.fillRect(Math.random()*1920,j*50,8,8):x.fillRect(j*50,Math.random()*1080,8,8)

Dec 28 2017 10:33 PM UTC

}// 140/140

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retera

function u(t) {

x.font="300px Arial"
x.fillText("A",c.width/2-150,c.height/2+150)

Dec 28 2017 9:54 PM UTC

}// 65/140

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I figured people clicking "awesome" on my Dweets might be robots, so this Dweet is a robot detector.

u/lionleaf

Hey, I'm no robot! ;)
u/Xen

i'm rumbled :-(

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retera

remix of d/4342 by u/retera

function u(t) {

c.width=w=2e3
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q+40);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),60,0,6.283,!1);x.fill()}

Dec 28 2017 9:46 PM UTC

}// 140/140

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retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 28 2017 8:54 AM UTC

}// 138/140

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u/Xen

nice style
u/geb

#background
u/vain

well done!

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retera

remix of d/4330 by u/retera

function u(t) {

c.width|=0
s=480;for(q=0;q++<40;){for(j=0;j++<10;){a=q+t;x.fillStyle=R(j*25,q*8,0);x.fillRect(C(a)*s*C(j+t)+960,S(a)*s*C(j-t)+540,9,9)}}

Dec 28 2017 8:15 AM UTC

}// 136/140

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retera

remix of d/4330 by u/retera

function u(t) {

s=480;for(q=0;q++<40;){for(j=0;j++<10;){a=q/t;x.fillStyle=R(j*8,q*8,j+q+j*q);x.fillRect(C(a)*s*S(j+t)+960,S(a)*s*C(j-t)+540,8,8)}}

Dec 28 2017 8:08 AM UTC

}// 130/140

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retera

remix of d/4329 by u/retera

function u(t) {

s=480;for(q=0;q++<40;){for(j=0;j++<10;){a=q+t;x.fillStyle=R(q*8,q*8,j+q+j*q);x.fillRect(C(a)*s*S(j+t)+960,S(a)*s*C(j-t)+540,8,8)}}

Dec 28 2017 8:06 AM UTC

}// 130/140

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retera

remix of d/4328 by u/retera

function u(t) {

c.width|=0;
for(r=0;r++<10;){s=480+C(r)*r*5;for(q=0;q++<8;){for(j=0;j++<9;){a=q/t+t/r;x.fillRect(C(a)*s*S(j+t)+960,S(a)*s*C(j-t)+540,8,8)}}}

Dec 28 2017 8:00 AM UTC

}// 140/140

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u/Purpzie

119 characters: for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

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