Dweets awesomed by u/mohd-akram

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

mohd-akram

function u(t) {

c.width=w=1920
x.font='600px s'
f=(t,X,Y)=>x.fillText(t,X,Y)
for(i=0;i<4;i++)f('2019'[i],420+i*250,800-99*Math.max(0,S(5*t-i)))

Jan 1 2019 5:21 AM UTC

}// 127/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Happy New Year!

show FPS hide FPS share 1 remix fullscreen

keithclark

function u(t) {

for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q*q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q

Dec 31 2018 9:44 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

New Year Fireworks

Show more comments…
u/13thptr

elegant :)
u/keithclark

change S(i*.2)*i*q for S(i*t>>4)*i*q for varying firework effects (2 chars over the limit tho)
u/katkip

haha i like the variation
u/JWinslow23

If q will only ever be 0 or 1 (t%2), couldn't this just be for(x.fillRect(x.globalAlpha=.2,q=t%2,2e3,2e3),i=125;i--;x.clearRect(S(t|1)*760+S(i)*v+960,(q/2-C(i))*v+380,l=6-q*3,l))v=q*200-S(i*.2)*i*q? That way, the variation also works.
u/keithclark

I opted for what I had because it held the initial shape in the sky for longer before gravity takes hold. Your version works and if you're happy to trade off the initial shape, you could also drop the \2 and save another 2 chars
u/keithclark

... also q can be any value between 0 and 1
u/JWinslow23

Ah, my mistake, I forgot about floats
u/lionleaf

Nice one! #nye #fireworks
u/iverjo

Beautiful!
u/vain

3... 2... 1... ignition... beautiful firework

show FPS hide FPS share fullscreen

katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭴⼽㈻昽⡘ⱙⱳ⤽㹻砮扥杩湐慴栨⤻楦⡳㸲〩砮慲挨堬夬猬〬㜩ⱸ⹳瑲潫攨⤬昨堫䌨猫琩⩳ⱙⱳ⼲⤬昨堭䌨猫琩⩳ⱙⱳ⼲⤬昨堬夫䌨猫琩⩳ⱳ⼲⤬昨堬夭䌨猫琩⩳ⱳ⼲⥽㭦⠹㘰ⰵ㐰ⰷ〰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 10:15 AM UTC

}// 135/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#circles #fractal #recursion #recursive I'm just like a gifted autistic kid who finally discovered recursion c.width^=0;t/=2;f=(X,Y,s)=>{x.beginPath();if(s>20)x.arc(X,Y,s,0,7),x.stroke(),f(X+C(s+t)*s,Y,s/2),f(X-C(s+t)*s,Y,s/2),f(X,Y+C(s+t)*s,s/2),f(X,Y-C(s+t)*s,s/2)};f(960,540,700)

show FPS hide FPS share 1 remix fullscreen

ellisk1

function u(t) {

with(x)for(m=q=t*30|0;m-->q-99;fill(arc(960+(r=m**.5*20*C(m))*S(a=m**3),540+r*C(a),w,0,7)))beginPath(fillStyle=R((w=q-m)*2,0,0,1/w**1.48))

Dec 28 2018 1:29 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

VIRUS

u/katkip

#virus I hope this will not aggravate my cold.
u/BirdsTweetCodersDweet

:O

show FPS hide FPS share fullscreen

rodrigo.siqueira

remix of d/11562 by u/echo85

function u(t) {

for(s=300,r=5/s,j=60*t*r-2,i=-3;i<2;i+=r)for(X=i,Y=j,T=9;T--;)U=X,X=X*X-Y*Y+i,Y=2*U*Y+j,x.fillStyle=R(Y,U,X),x.fillRect(i*s+4*s,j*s+2*s,5,5)

Dec 27 2018 2:02 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Color Mandelbrot Set

show FPS hide FPS share fullscreen

maple3142

function u(t) {

c.width=1080
for(i=1;i<=100;i++)x.fillRect(520+i*5*S(t-i),350+i*5*C(t-i),10,10)

Dec 26 2018 2:50 PM UTC

}// 79/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

rodrigo.siqueira

function u(t) {

c.width^=0
x.fillStyle="#ace"
for(i=0;i<170;i++){
 x.font=i/15+'em"'
 x.fillText('❄',S(t/25+i)*i*13,Math.abs(99*(t+i))%1190)
}

Dec 25 2018 6:01 PM UTC

}// 126/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Snow Falling

show FPS hide FPS share fullscreen

ersagun

remix of d/4868 by u/Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=t*339525;r=62*t**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 24 2018 2:17 AM UTC

}// 129/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

I think 339525*t instead of 2.3998*frames is much better. :)

show FPS hide FPS share fullscreen

rodrigo.siqueira

remix of d/11538 by u/rodrigo.siqueira

function u(t) {

x.fillStyle=`#6223`
for(a=Y=i=1;i<7e3;i++){
r=Math.floor(Math.random()*3)
Y=!r?Y=Y/5:Y+180+C(t)*80
x.fillRect(a=t*99,1080-Y,1,1)}

Dec 24 2018 1:44 AM UTC

}// 129/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Sedimentary Valley

u/katkip

#texture

show FPS hide FPS share 3 remixes fullscreen

rodrigo.siqueira

remix of d/11528 by u/rodrigo.siqueira

function u(t) {

a=b=0
for(i=0;i<3e3;i++){
r=Math.floor(Math.random()*3)
a=(a+956*r)/2
if(r==1){b=b/4}
else{b=b+199};
x.fillRect(a,b+30,1,1)}

Dec 23 2018 4:27 PM UTC

}// 124/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Fractal mountains of Sierpinski Valley

dwitter.net | mohd-akram (6754)