Dweets awesomed by u/katkip

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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katkip

function u(t) {

c.width^=0;for(i=0;i<100;i++)x.arc(960+S(t*C(i*i+t))*960,540+C(t*S(i*i+t))*540,i,0,i);x.stroke();FPS=667

Nov 29 2018 6:53 PM UTC

}// 104/140

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Rising of Leonardo Da Vinci

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katkip

function u(t) {

c.width^=0;for(i=0;i<50;i++)x.beginPath(),x.arc(960+S(i**Math.E+t)*300,540+C(i**9-t/1.5)*300,10+S(t/i)*10,0,7),x.closePath(),x.fill();

Nov 29 2018 12:34 PM UTC

}// 134/140

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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) {

with(x)for(c.width|=k=320,scale(9,9);--k;arc(107,60,16*(k>>5)+16/(1+1e5**(.5+k%2-t%2)),a=(t/2-k)%11*.571,a))k%2&&beginPath(stroke())

Nov 26 2018 7:23 PM UTC

}// 132/140

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Walking Spiral #beesandbombs

u/pavel

Using scale(9,9) to get thick lines and shave some digits from coordinate numbers (e.g. 60 vs 540 for height)
u/pavel

x.arc(X,Y,r,a,a) = x.lineTo(X+r*C(a),Y+r*S(a))
u/katkip

Duuude
u/katkip

Awesomeee

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katkip

function u(t) {

c.width=1e3;for(i=0;i<20;i++)x.ellipse(500,270,200+i*9,99+i*4,S(t+i/t/9)*t,0,7);x.stroke()

Nov 26 2018 3:02 PM UTC

}// 90/140

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Coil physics

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katkip

function u(t) {

c.style.background='#eee';c.width=400;for(n=900;n--;)x.lineTo(200+S(n*n+t)*200,114+C(n*n+n)*200);x.fill()

Nov 26 2018 2:38 PM UTC

}// 105/140

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Electricity

u/Xen

Nice!
u/katkip

Yep
u/aleamb

fucking awesome!

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katkip

function u(t) {

//throw btoa(document.scripts[2].innerHTML.repeat(1337))

Nov 26 2018 2:06 PM UTC

}// 56/140

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#exploit

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katkip

remix of d/11139 by u/anotherkitten

function u(t) {

x.fillStyle=`hsl(${t*99} 50%${50+50*S(t*99)}%`;x.arc(960,540,t+S(t**5)*t,3+C(t*99)*3,3+S(t*66)*3);x.fill();x.drawImage(c,-72,-40,2064,1160)

Nov 25 2018 10:33 AM UTC

}// 139/140

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Falling in the #illusion #waitforit stare in the middle for few seconds in fullscreen and see what happens

u/joeytwiddle

Yeah that's ... uh ... powerful!

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katkip

function u(t) {

eval(unescape(escape`楦⠡琩筣⹷楤瑨㴹㤻焽⡃ⱘⱙⱓⱄ⤽㹻砮晩汬却祬攽䌬砮晩汬剥捴⡘ⱙⱓⱄ⥽㭱⠧扬略✬㔬㔬㈰ⰲ⤻焨∣慡愢ⰵⰷⰲ〬㄰⤻砮晩汬却祬攽刨⤻砮晩汬呥硴⠢㼿㼢ⰶⰱ㔩絸⹤牡睉浡来⡣ⰵⰵ⤯⽏湬礠景爠䉃⁫楤猻`.replace(/u(..)/g,"$1%")))

Nov 25 2018 9:34 AM UTC

}// 140/140

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#error XP #simulator. Code: if(!t){c.width=99;q=(C,X,Y,S,D)=>{x.fillStyle=C,x.fillRect(X,Y,S,D)};q('blue',5,5,20,2);q("#aaa",5,7,20,10);x.fillStyle=R();x.fillText("???",6,15)}x.drawImage(c,5,5)//Only for BC kids;

u/katkip

#tagfail

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katkip

function u(t) {

x.font='10in"';x.fillText("👾",470+S(t*20)*400,900);x.drawImage(c,-50,-50,2020,1180);x.globalAlpha=t/9;x.fillText('err0r',0,666+S(t*99)*2e3)

Nov 25 2018 9:08 AM UTC

}// 139/140

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Works best on firefox and where the emoji is visible #invaders #glitch

u/joeytwiddle

Other way round for me! Blur on Firefox, visible on Chrome. Linux

dwitter.net | katkip (35549)