Dweets awesomed by u/13thptr

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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yonatan

function u(t) {

eval(unescape(escape`爽䵡瑨⹲慮摯活景爨畛栽ㄶ崽爨椽㉥㌩⨱攴㭩ⴭ㭸⹦楬汒散琨㜰㐫椥㌲⩨ⰹ㜰⴨椾㸵⤪栬栬栩⥮㵵孩崽爨焽椫⸵⵲⠩簰⤪⡵孱崫畛焫ㅝ⭵孱ⴳ㉝⭵孱ⴳㅝ簰⤪⸴㠬砮晩汬却祬攽刨渪㐬渪㈩`.replace(/u(..)/g,"$1%")))

Dec 2 2018 6:43 PM UTC

}// 130/140

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golfed from https://codepen.io/ge1doot/pen/aQPqXX?editor…

u/yonatan

r=Math.random;for(u[h=16]=r(i=2e3)*1e4;i--;x.fillRect(704+i%32*h,970-(i>>5)*h,h,h))n=u[i]=r(q=i+.5-r()|0)*(u[q]+u[q+1]+u[q-32]+u[q-31]|0)*.48,x.fillStyle=R(n*4,n*2)
u/yonatan

#flame #fire
u/jylikangas

I clicked hot and this appeared. Can confirm Dwitter UI is properly tested.
u/sigveseb

Hot indeed

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pavel

function u(t) {

for(i=c.width|=0;j=i-->>5;x.arc(98*(28-k*63+i%32*(4*k-2)+(j|t)%2+t%1/2+(.5-j%2)/(1+9e9**(j/9-t%1))),(j-k)*170,98,3*!k,3*k))k=i>>4&1
x.fill()

Nov 29 2018 12:18 AM UTC

}// 140/140

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MORE disks >:) #beesandbombs

u/anotherkitten

stop being so good
u/katkip

i love your beesandbombs dweets
u/pavel

I call fill just once, the black bits are a single connected shape that zig-zags, the messy edges are hidden offscreen.
u/pavel

I use 1/(1+9e9**x) to smooth step but even rows step twice in one cycle which is done by adding (j|t)%2 as offset.
u/pavel

In hindsight ~~x+(x%1)**9 is better for multi-smooth-step animations.

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New_Core

function u(t) {

for(c.width|=i=11;i--;x.fillRect(-1e3+400*S(a=(i-~~(t*9))/1.91),500+400*C(a),b,b))x.shadowColor=R(x.shadowOffsetX=2e3,x.shadowBlur=b=70,300)

Nov 28 2018 12:17 PM UTC

}// 140/140

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put your mouse arrow in the middle of the circle and let your eyes rest on it.. you will see a green dot and if lucky the pink spots will also disappear

u/metamero

#OpticalIllusion
u/katkip

Awesome #illusion

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pavel

function u(t) {

for(i=c.width|=0;Y=i-->>6;x.fill(x.arc(((i&62)-Y)*48-o*C(A=~~t/.9549),(Y-2)*83-o*S(A),30,A,A-3,i%2)))x.beginPath(o=i%2*96/(1+1e9**(.5-t%1)))

Nov 25 2018 5:45 AM UTC

}// 140/140

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Sliced Dots #beesandbombs

u/pavel

Golfed 3 loops into one. Lowest bit of i determines half-circle, next 5 bits determine X and the rest determine Y
u/pavel

i&62 = (i>>1)%32*2 = X*2
u/jylikangas

There's a lot of really clever tricks in your dweets. Keep them coming! :)
u/katkip

wow

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pavel

remix of d/11100 by u/pavel

function u(t) {

for(c.width|=i=18,t%=8,T=t<<1;i--;)x.rect(535+(i?i-1:T)*50,440-!i*200*S(t*Math.PI),i?!~~(T-i+1.5)^i%2?50:0:100,200);x.fill('evenodd')

Nov 21 2018 6:30 PM UTC

}// 134/140

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Evenodd 2 #default

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pavel

function u(t) {

for(c.width|=i=18,t=(t/3)%16;i--;)x.rect(535+(i?i-1:~~t)*50,440+!i*200*S(t*Math.PI)**17,i?!~~(t-i+1)^i%2?50:0:100,200);x.fill('evenodd')

Nov 21 2018 5:00 AM UTC

}// 136/140

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Evenodd #default

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katkip

remix of d/11050 by u/katkip

function u(t) {

if(!t)x.translate(960,540);x.fillStyle=R(t*30,0,t*40);x.font='300px"';x.fillText("D",99,99);x.drawImage(c,-300,0,100*t,100*t);x.rotate(3.14)

Nov 18 2018 12:53 PM UTC

}// 140/140

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D from Dwitter #fractal

u/magna

Looks like Julia!

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rnbw

function u(t) {

c.width^=0;x.fillStyle='#5b9';for(j=0;j<12;j++)for(i=0;i<22;i++){x.beginPath(x.fill(x.arc(99*i,99*j,S(t*3+i*3.14+j*3.14)*20+49,0,7)))}

Nov 16 2018 7:32 PM UTC

}// 134/140

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oooooh, circles

u/Xen

Nice
u/sigveseb

cool style

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jylikangas

function u(t) {

for(c.width|=t%=i=6;i--;(A=a=>x.beginPath(x.fill(x.arc(i*365+(k?T=t%1:t>i)*200,700-S(1/T)*5,85,a,a+3))))(a=k*t*3.2+i-t/6),A(a+3.14))k=~~t==i

Nov 14 2018 9:27 PM UTC

}// 140/140

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Rolling physics

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u/joeytwiddle

Great effect
u/sigveseb

The camera shake is pretty sweet
u/iverjo

You keep impressing me
u/DataMeta

Quite clever
u/statenlogic

+1 for usingd an optical illusion for some of the movement
u/13thptr

#physics #bounce

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pavel

function u(t) {

for(d=t<8,n=i=256;i--;x.fillRect(d?9*i:855+n*i*(i<2),!d*300,50,d?4:50))x.fillStyle=R(C((t|Math.abs(i-107))**.5*t)<0&&n)
x.drawImage(c,0,d*4)

Nov 12 2018 3:19 AM UTC

}// 140/140

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Demon

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u/magna

Amazing!
u/iverjo

Spot on!
u/katkip

nice idea
u/ndr3w221

this is awesome!
u/and3k5

i did not expect the last bit! scary!
u/aleamb

great! #waitforit
u/lionleaf

Amazing #demon

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