Dweets awesomed by u/lionleaf

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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sfz

function u(t) {

x.drawImage(c,-9,-4,1937.8,1089)
for(i=9;i--;)H=9*S(t),G=9*C(t),x.fillStyle=`hsl(${t+=9*i+t/9},90%,60%`,x.fillRect(960+i+G-H,470+i+H+G,6,6)

Mar 21 2017 8:48 AM UTC

}// 139/140

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Neutron

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jick

function u(t) {

x.fillStyle=R(S(t*1)*255,Math.random()*255,0);
x.fillRect(t*12345%2000,1060,30+Math.random()*300,40)
x.drawImage(c,0,-20,1920,1080)

Mar 21 2017 3:01 AM UTC

}// 131/140

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scottglz

remix of d/2237 by u/dodojojo

function u(t) {

w=c.width=1920;g=-C(t/7)*9+11;for(i=0;i<g;i++)for(j=0;j<g;j++)x.fillRect(i*(w/g)+30*S(g*j),j*(1080/g)+30*C(g*i),w/g-10,1080/g-10)

Mar 20 2017 10:48 PM UTC

}// 130/140

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Made a cycle of my favorite timespan

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aemkei

remix of d/1137 by u/mxfh

function u(t) {

r=500;c.width^=0;for(I=φ=2;φ>-2;φ-=1/2e3)x.fillRect(C(φ)*S(λ=φ*r-t)*r+999,S(φ)*r+520,W=(16&(T(I=I*9%32432)+2))*C(λ/2),W)

Mar 20 2017 10:34 PM UTC

}// 120/140

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A tiny planet

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mxfh

remix of d/2230 by u/mxfh

function u(t) {

i=t*60
x.setTransform(64,r=i>15,b=i>7,64,w=900,h=519)
x.rotate(i*.7854)
x.fillStyle=`#${b?r?w:"FFF":h}`
x.fillRect(-3+r,0,b?r?4:6:w,w)

Mar 20 2017 9:51 AM UTC

}// 134/140

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golfpunk brexit edition

u/iverjo

#flag

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CHz

function u(t) {

c.width=1920
for(a=0;a<34;a++){for(b=0;b<20;b++){x.save()
x.translate(a*60,b*60)
x.rotate(t*(a+b+20)/10)
x.fillRect(0,0,60,60)
x.restore()}}

Mar 19 2017 11:27 PM UTC

}// 140/140

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u/katkip

#waves

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rpearl

function u(t) {

for(r=1.178,c.width|=s=0;s<8;st=s*r/3,ds=S(t*2+r*s)*500,x.beginPath(),x.arc(960+S(st)*ds,540+C(st)*ds,50,0,6),x.fill(),s++);

Mar 19 2017 9:14 PM UTC

}// 124/140

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u/aemkei

Magic cups!
u/iverjo

#dots
u/UEZ

no collision at all

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joseprio

remix of d/2180 by u/aemkei

function u(t) {

W=c.width^=0;x.font='99px o';for(i=99;i--;x.fillText(String.fromCodePoint(128e3+(i%22)),W-W*(T(i/9)+s*t)%3e3,540+400*S(s*W)))s=149/(i*3+199)

Mar 19 2017 8:47 PM UTC

}// 140/140

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u/sfz

so fun

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danielkagan

function u(t) {

a=500,b=Math.PI,d=b/49,e=t%98,f=(q,w)=>a+a*q(w*d),c.width=1920;for(i=99;i--;)x.moveTo(f(S,i),f(C,i)),x.lineTo(f(S,i*e),f(C,i*e));x.stroke();

Mar 18 2017 9:11 PM UTC

}// 140/140

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u/sfz

very cool patterns!
u/donbright

excellent

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sfz

remix of d/2192 by u/sfz

function u(t) {

c.width=w=270
for(i=8;i--;)h=54*(3*t+i)%w,a=i<5,b=i>6,x.fillRect(w/2+(a?0:b?-6-42*S(t):w*(i-5.5)/2),a?h:b?99:0,b?20:4,9*(a?2:(b?5:9*w)))

Mar 18 2017 6:21 PM UTC

}// 136/140

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Don't Dweet And Drive!

u/donbright

lol reminds me of the famous DONKEY.BAS by Bill Gates et al
u/joeytwiddle

I immediately thought of Spyhunter
u/Joachim

#road

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