Dweets awesomed by u/joeytwiddle

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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CHz

function u(t) {

t+=4
c.width=1920
a=Math.PI/8
x.translate(960,540)
x.rotate(t)
for(i=0;i<16;i++)x.arc(0,0,350+100*(S(i+t)+C(i+1.4*t)),i*a,(i+1)*a)
x.fill()

Mar 20 2017 4:51 AM UTC

}// 139/140

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New_Core

function u(t) {

for(i=2e3;i--;)x.fillStyle='hsl('+200*C(t*.5)*S(i*.005)+',99%,50%)',x.fillRect(i*5+200*S(t)-200,1070,5,9);x.drawImage(c,0,-9,1920,1080)

Mar 19 2017 8:27 PM UTC

}// 135/140

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another color shock

u/New_Core

#colorshock

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aemkei

remix of d/2219 by u/aemkei

function u(t) {

t||(W=c.width=600);i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=(t*9^i)*12%W))x.fillStyle=R(0,i&&W,0,i?1:.05)

Mar 19 2017 8:19 PM UTC

}// 135/140

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u/donbright

wow neo is dancing
u/sfz

i like the phosphor effect

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gabrielsroka

remix of d/2210 by u/gabrielsroka

function u(t) {

if(!t)i=0
if(t%1<.01){c.width|=0;i++
for(j=w=500;j--;)x.lineTo(C(a=i*j)*w+960,S(a)*w+w+40)
x.stroke()}

Mar 19 2017 5:59 PM UTC

}// 102/140

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this remix only updates once per second so you can see the patterns better. try it in fullscreen

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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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gabrielsroka

remix of d/2036 by u/nick

function u(t) {

S=(c,X,Y,w,h)=>{x.fillStyle=c;x.fillRect(X,Y,w,h)}
for(i=7;i--;S("#036",0,0,760,579))S("#e00",0,i*168,1920,75)

Mar 18 2017 5:51 PM UTC

}// 110/140

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Also a remix of:

u/gabrielsroka

https://www.dwitter.net/d/2038
u/gabrielsroka

add this for stars: S("#fff");for(i=50;i--;x.font='5em a')x.fillText("★",i%5.5*130+25,80+(i/5.5|0)*59)

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scottglz

remix of d/2190 by u/scottglz

function u(t) {

for(X=71;X--;)for(Y=40;Y--;)x.fillStyle=X<24&Y<21?Y%2|X-Y&3|!Y|!X|Y>18?'#00f':f:Y/3&1?f='#fff':'red',x.fillRect(X*25,(Y+S(X/9+t*9))*25,25,5)

Mar 18 2017 5:00 PM UTC

}// 140/140

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u/sfz

brilliant!

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mxfh

remix of d/2184 by u/mxfh

function u(t) {

for(w=540,i=W=4*w;i;x.beginPath(),x.arc(W*(T(i)+s*t/3)%W,i?w+w*S(r=s*W):w,i?s*9:W,0,6),x.fillStyle=R(i,i,r%i,i?1:.1),x.fill())s=w/(i--*3+w)

Mar 18 2017 4:36 PM UTC

}// 139/140

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u/sfz

great idea and execution 💯💯💯
u/donbright

excelllent work
u/iverjo

#parallax #stars
u/mxfh

arc
u/mxfh

#arc

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sfz

remix of d/2171 by u/sfz

function u(t) {

c.width=w=540;t*=7;for(i=l=129;i>69;t+=i--)for(j=7;j--;)h=t*i%w,a=h-l>l,x.fillRect(t%w+(a?9*S(t/j):0),a?w/2+h%7*C(t/j):h,h<w*.6,a||9)

Mar 18 2017 5:47 AM UTC

}// 133/140

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Bit rainy

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scottglz

function u(t) {

for(X=71;X--;)for(Y=40;Y--;)x.fillStyle=X<24&Y<21?Y%2|X-Y&3|!Y|!X|Y>18?'#00f':f:Y/3&1?f='#fff':'red',x.fillRect(X*25,(Y+S(X/9+t))*25,25,25)

Mar 18 2017 5:00 AM UTC

}// 139/140

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u/sfz

can't believe you did it!
u/magna

I salute this dweet.

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