Top dweets by u/Kalanchoe

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: #ScaryMovies

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Kalanchoe

function u(t) {

θ=c.width=1e3;x.strokeStyle='#4f5';r=(17+S(t)/157)/7;p=(θ,F)=>190*(F(θ)-F(θ*r)/r);while(θ>0)x.lineTo(p(θ-=.1,C)+500,p(θ,S)+281);x.stroke()

Feb 22 2017 12:40 AM UTC

}// 138/140

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Homestuck!

u/Kalanchoe

Also, shout-out to Hacker News.

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Kalanchoe

function u(t) {

r=Math.random
c.width^=0
!t?o=[]:o.push({X:r()*1920,Y:r()*1080,x:r(),y:r()})
o.map((a)=>(x.fillRect(a.X+=a.x+=r()-.5,a.Y+=a.y+=r()-.5,4,4)))

Feb 26 2017 9:37 AM UTC

}// 140/140

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u/donbright

genius use of []
u/SpecialAgent

a clever piece of code

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Kalanchoe

function u(t) {

g=(j)=>(1-(D&2))*(j^D&1);t?(i=x.getImageData(X+=g(0),Y+=g(1),1,1),D+=(i.data[3]^=255)?1:3,x.putImageData(i,X,Y)):(c.width=198,X=99,Y=56,D=0)

Feb 24 2017 4:41 AM UTC

}// 140/140

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Langton's ant! Initial settings (c.width=198,X=99,Y=56,D=0) can be changed. D%4 = direction where 0,1,2,3 correspond to down,right,up,left.

u/Kalanchoe

Faster version: speed=40;g=(j)=>(1-(D&2))*(j^D&1);while(speed-->0)t?(i=x.getImageData(X+=g(0),Y+=g(1),1,1),D+=(i.data[3]^=255)?1:3,x.putImageData(i,X,Y)):(c.width=198,X=99,Y=56,D=0)
u/donbright

brilliant!

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Kalanchoe

function u(t) {

r=.2958
t?c.onmousemove=e=>{d=r*X-e.clientX;D=r*Y-e.clientY;R=d*d+D*D;c.width^=0;x.fillRect(X+=s*d/R,Y+=s*D/R,9,9);s-=1}:(X=960,Y=540,s=500)

Feb 26 2017 10:18 AM UTC

}// 140/140

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"she's just shy until you get to know her"

u/sigveseb

:D
u/joeytwiddle

That's fun! :D #interactive #game

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Kalanchoe

remix of d/1395 by u/Kalanchoe

function u(t) {

r=Math.random
c.width^=0
t?o.push({X:r()*1920,Y:r()*1080,x:0,y:0}):o=[]
o.map(a=>(x.fillRect(a.X+=a.x+=r()-.5,a.Y+=a.y+=r()-.5,s=4*r(),s)))

Feb 26 2017 10:31 AM UTC

}// 139/140

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Fullscreen! Sometimes when my eyes aren't focused, I can see lights moving around just like this.

u/iverjo

Same here
u/donbright

snowflake remix https://www.dwitter.net/d/1414
u/donbright

tried using this technique in 3d https://www.dwitter.net/d/2112

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Kalanchoe

function u(t) {

//draw
r=.2958
s=(v)=>()=>{x.beginPath();c.onmousemove=v}
c.onmousedown=s((e)=>x.lineTo(e.clientX/r,e.clientY/r),x.stroke())
c.onmouseup=s()

Feb 22 2017 8:38 AM UTC

}// 140/140

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Click to draw.

u/lionleaf

Oh that's neat! Not enough interactive dweets out there

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Kalanchoe

function u(t) {

r=Math.random
w=c.width
c.onmousedown=()=>c.width=1920+t
x.fillStyle='#4f5'
for(i=9/(t-w+1921);i-->1;)x.fillRect(r()*w,(y=r())*w,50*y,300*y)

Feb 22 2017 9:25 AM UTC

}// 140/140

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Click to reset.

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