Dweets awesomed by u/mildlybean

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: #ScaryMovies

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anotherkitten

remix of d/19977 by u/anotherkitten

function u(t) {

x.fill(p=new Path2D(),p.arc(960,540,270,0,c.width|=8))
x.fill(q=new Path2D(),q.arc(1300,630,140,1+S(t*2)/3,3))

Sep 16 2020 3:43 PM UTC

}// 110/140

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Comment with something for me to add to this! (Iteration 2, added a tail)

u/danny@hille.dk

nice :-)
u/taupelink

cool! add an eye?
u/anotherkitten

eye added and lots of characters shaved on the tail! d/19982

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anotherkitten

function u(t) {

for(i=120;i--;)a=!!i,x.fillStyle=`hsla(${S(t)*i-60},76%,${66*a}%,${.03+a}`,x.fillRect(a*960+S(i+t)*C(t/4)*9*i,a*540+C(i+t)*9*i,p=!a*2e3+9,p)

Sep 16 2020 3:38 PM UTC

}// 140/140

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spinning galaxy

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anotherkitten

function u(t) {

x.fill(p = new Path2D(),p.arc(960,540,270,0,8))

Sep 16 2020 3:02 PM UTC

}// 47/140

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Comment with something for me to add to this, will remix with one suggestion per iteration (until its too complex to continue)

u/danny@hille.dk

a tail
u/anotherkitten

tail added! d/19979

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danny@hille.dk

function u(t) {

for(c.width=X=64;X--;)for(Y=64;Y--;)x.fillStyle=R(o=99*(S((X*Y-t+Y*X)/128)+C(Y+t)+S(4*t+X+S(Y+t))),o/2,-o),x.fillRect(X,Y,1,1)

Sep 15 2020 6:01 PM UTC

}// 126/140

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plasma #storm

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Xen

remix of d/7011 by u/DirtyDan

function u(t) {

with(x)for(strokeStyle="#FFF",lineWidth=b=i=49;i--;stroke())beginPath(fill()),arc(960+S(a=t*i/b*5)*275,540+C(a)*275,i*4,0,9)

Sep 14 2020 9:48 PM UTC

}// 124/140

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Had to play

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mildlybean

function u(t) {

x.fillStyle=`hsl(${t*75} 100%50%`,x.fillRect(956+S(t*2)*50,536+C(t*2)*50,9,9),x.drawImage(c,-6,-3,1932,1086)

Sep 12 2020 12:40 PM UTC

}// 108/140

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Electric Kool-Aid

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danny@hille.dk

remix of d/12957 by u/geb

function u(t) {

c.width+=0
for(i=K=999;i--;){
 X=C(i+t+K)*S(t+2*i)**(i%2)
 Y=S(i+t-K)*S(t-3*i)**(i%2)
 K=X*Y*S(t)
 x.lineTo(960+X*500,560+Y*500)
}x.stroke()

Sep 12 2020 11:00 AM UTC

}// 140/140

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Random remix

u/rep_movsd

Lovely

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mildlybean

function u(t) {

with(x)fillStyle=`hsl(270 66%99%`,fill(arc(960,540,99,0,7)),drawImage(c,-1.5,-1,1923,1082)

Sep 10 2020 12:52 PM UTC

}// 90/140

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I found this cool trick with hsl

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anotherkitten

function u(t) {

c.width|=0
x.scale(100,100)
f=40-t*10
for(j of[1,-1])for(i=t*5|0;i--;)x.fillRect(z=i+(t*5%1),5+j*(z>f)*(z-f)/5,-.5,j)
x.fillRect(f,4.9,1,.2)

Aug 31 2020 3:12 PM UTC

}// 140/140

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shooting some #default blocks

u/KilledByAPixel

Satisfying!
u/Xen

nice!
u/aleamb

cool!
u/katkip

O_O
u/danny@hille.dk

looped version =>c.width|=0,x.scale(100,100) for(i=(t%=6)*5|0;i--;x.fillRect(T=40-t*13,4.9,1,.2))for(j of[1,-1])x.fillRect(z=i+t*5%1,5+j*(z>T)*(z-T)/5,-.4,j)

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kossx

function u(t) {

c.width=1920
let f  =(a) => {
a--;
if (a>0){x.arc(960,540,a*15,0,Math.abs(C(t))*Math.PI*2);f(a)}}
f(30)
x.strokeStyle ="blue"
x.stroke()

Aug 9 2020 12:16 AM UTC

}// 136/140

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