Dweets awesomed by u/andrea270872

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: #Food

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KilledByAPixel

remix of d/13209 by u/KilledByAPixel

function u(t) {

for(i=99;i--;)N=255*(S(3.14*i+2*t)),Y=520*S(t+i),X=940*S(i+3*t),x.fillStyle=R(N,N,N),x.beginPath(),x.fillRect(940+X,520+Y,40,40)

Apr 12 2019 4:48 PM UTC

}// 128/140

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More playing with the equation. I'm really liking what it can do without the background clear.

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vinca

function u(t) {

for(t||(X=Y=0,x[r='fillRect'](0,0,2e3,2e3)),i=1e3;i--;Y=W)x.fillStyle='#902',x[r](1e3+99*X,600+99*Y,1,1),V=Y-.98*X+4/(1+X*X)-3,W=-.99*X,X=V

Apr 12 2019 1:49 PM UTC

}// 139/140

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u/magna

Nice!

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pavel

function u(t) {

for(c.width=i=1944,w=960;i--;x.fillRect(w+w*S(a)*S(b)/z,540+w*C(b)/z,s=13/z/z,s))j=i%72,z=2+C(a=2.7+S(t)+(j&4?0:j)/72)*S(b=1.5+(i/72|0)/120)

Apr 11 2019 6:03 AM UTC

}// 140/140

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#default on a sphere

u/f8f82804

#d3 #sphere #perspective
u/katkip

how lol
u/pavel

I draw #default one pixel at a time and treat (x,y) of the pixels as angles (a,b) in spherical coordinates. Spherical to 3d cartesian is x=r*sin(a)*sin(b), y=r*cos(a)*sin(b), z=r*cos(b). Projecting 3d to 2d cartesian is x'=x/(2+y/r), y'=z/(2+y/r), and scaling pixel size by 1/(2+y/r)**2 so stuff in the back is smaller.

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Jezza

remix of d/13106 by u/Jezza

function u(t) {

x.globalAlpha=0.1;x.fillRect(0,0,2e3,2e3);for(i=314;a=.02*i,i--;)x.clearRect(1e3+(500+9*T(.01*i*(S(t/20)*20)))*S(a),530+500*C(a),99,2)

Apr 9 2019 10:58 PM UTC

}// 134/140

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C -> S

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Jezza

function u(t) {

f=(a,b)=>55*i*b((t+99)/(1+a));c.width|=p='☉☿♀♁♂♃♄♅♆♇';x.font='4em m';for(i=0;i<10;i++)x.fillText(p[i],960+f(i,C),540+f(i,S))

Apr 9 2019 2:02 AM UTC

}// 124/140

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A not-at-all-accurate orrery

u/KilledByAPixel

cool idea
u/donbright

#astronomy #planets #physics
u/IV

#text

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Jezza

function u(t) {

c.width=w=1920;x.translate(625,-1e4);x.rotate(-S(t)/30);for(i=0;i<9;i++)x.fillRect(-125+i*100,10400,50,200)

Apr 7 2019 9:40 AM UTC

}// 107/140

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#default

u/donbright

hahaha ... took me a minute to get it

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Jezza

remix of d/9723 by u/DataMeta

function u(t) {

c.width|=i=768;x.transform(1,0,0,1,960,540)
for(i;i--;x.rotate(t/64))x.fillStyle=`hsl(${i},99%,50%)`,x.fillRect(i,i,i/8,i)

Apr 7 2019 9:12 AM UTC

}// 122/140

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Clicked random and remixed the first dweet

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Jezza

remix of d/8975 by u/katkip

function u(t) {

a=n=>S(n)*64+192;for(i=26;i--;)x.fillStyle=R(a(i-t*3),a(i-t*5),a(i-t*7)),x.fillRect(t/i*100+S(t*2)*800+300,0,99,8);x.drawImage(c,0,8)

Apr 7 2019 9:04 AM UTC

}// 133/140

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Clicked random and remixed the first dweet

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katkip

remix of d/13068 by u/vinca

function u(t) {

for(t||0(X=Y=.1,b=.86,r=280),i=1e3;i--;)x.fillRect((i?1e3:0)+r*X,r*Y+99,1,1),V=(1+1.02*b)*X-b*X*Y,W=(1-b)*Y+b*X*X,X=V,Y=W

Apr 7 2019 9:03 AM UTC

}// 121/140

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Golfed and fixed symmetry

u/katkip

19 bytes less
u/joeytwiddle

19 bytes *fewer. less stuff (uncountable) fewer things (countable). Class dismissed!
u/katkip

Ooops got a F

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Jezza

remix of d/2239 by u/scottglz

function u(t) {

a=11;w=c.width=1920;g=S(t/7)*9+a;for(i=-a;i<a;i++)for(j=-a;j<a;j++)x.fillRect(w/2+i*(w/g)+30*S(g*j),j*1080/g+30*C(g*i)+540,w/g-a,1080/g-a)

Apr 7 2019 8:03 AM UTC

}// 139/140

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Clicked random and remixed the first dweet

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