Dweets awesomed by u/robbyg

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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pavel

function u(t) {

t?c.width|=0:(i=A=240,j=B=80,p=q=-9)
x[f='fillRect'](i+=p=i<7*A?p:-p,840,A,A)
x[f](j+=q=j>0?q:-q,1e3,B,B)
j>i-B&&(j=i-B,p+=s=(q-p)/5,q-=s*9)

Jan 24 2019 10:56 PM UTC

}// 140/140

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Perfect elastic collision #physics #simulation

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u/pavel

Big block is 9x the weight of the little block
u/katkip

This is impressive. Idea from 3blue1brown?
u/iverjo

Wow!
u/bekfast2390

This is like ping-pong!
u/joeytwiddle

Some context: https://www.youtube.com/watch?v=HEfHFsfGXjs 3Blue1Brown
u/katkip

hi, PI
u/Undefined

A fellow 3b1b fan, I see :D
u/joeytwiddle

#3b1b
u/ivylab

I always wait until the big one gets way up to the left side and it goes bam bam bam bam bam :)

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f8f82804

remix of d/11919 by u/mxfh

function u(t) {

for(c.width|=i=384;i--;x.fillRect(960-w/2+e,4*i,w+e,4)){y=i/80-2;w=y>.7?3e3:(1-y*y)**.5*640;e=T(t/9+i*w);x.fillStyle=`hsl(${-y}rad 99%50%)`}

Jan 24 2019 8:12 PM UTC

}// 140/140

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#minimal #outrun #glitch #sunset

u/f8f82804

d/11931
u/pavel

Omitting the space in 99%50% does not work in Safari, everything is black.
u/f8f82804

yeah safari stinks
u/f8f82804

try "for(c.width|=i=384;i--;x.fillRect(960-w/2+e,4*i,w+e,4))y=i/80-2,w=y>.7?3e3:(1-y*y)**.5*640,e=T(t/9+i*w),x.fillStyle=hsl(${-y}rad 99% 50%)" which should work and is still <140
u/bekfast2390

easrdfghj

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pavel

function u(t) {

with(x)for(c.width|=j=-8*t%1;j++<32;clip(fill(arc(960+40*j*S(j/9+t/5),700,5e3/j,9,13))))beginPath(fillStyle=R(a=9*j,a,a))

Jan 23 2019 11:54 PM UTC

}// 121/140

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#tunnel using clip()

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u/joeytwiddle

Sir. *applause*
u/jylikangas

Smooth!
u/katkip

:0
u/magna

#pavel
u/iverjo

Very nice!
u/bekfast2390

sick dude!!!
u/vain

Fucking cool!
u/visualDev

I am new here sorry how to run this locally?

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katkip

function u(t) {

c.width^=0;for(i=160;i--;)for(j=70;j--;)m=Math.abs(80-i),n=Math.abs(35-j),x.fillRect(i*20-j*20,j*15+m*C(m/2-t*2)+n*S(n/2-t*2),10,10)

Jan 23 2019 4:34 PM UTC

}// 132/140

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#waves

u/Xen

nice

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pavel

remix of d/11920 by u/pavel

function u(t) {

with(x)for(c.width|=j=90;--j;stroke())for(Z=j/2-3*t%.5,lineWidth=1+50/Z/Z,beginPath(i=7);i--;)arc(960,540,1e3/Z,a=(1.257*i+Z/7-t)%6.283,a)

Jan 23 2019 2:48 AM UTC

}// 138/140

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u/joeytwiddle

I like how the middle is going inwards, paradoxically

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𨰮𭱩𩁴𪀽𚁷🐹𝠰𚐪𜠬𪐽𭰪𜰩𞱩𛐭𞱸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𛠱𝐪𪑽𛀹𞐥𛀶𜀥𨀬𮁛𩱝𚁷𚰨𤰨𬐽𪐯𜰸𜐫𠰨𭀯𜠩𚠳𚐪𦠩𛰨𦠽𠰨𬐩𚡚𛐷𚐪𭰬𝐴𜀫𤰨𬀩𚡶𛱚𚡷𛁳🐱𚰲𜀰𛱚𛱚𛁳𚐩𦠽𠰨𬀽𪐯𝠳𛠶𝰫𭀩𚠨𭠽𪐥𞀯𞀫𜐩𚰳`.replace(/u../g,'')))

Jan 22 2019 12:24 AM UTC

}// 140/140

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for(x[g='fillRect'](0,0,c.width=(w=960)*2,i=w*3);i--;x.fillStyle=hsl(${.15*i},99%,60%,x[g](w+(S(q=i/381+C(t/2)*3)*Z)/(Z=C(q)*Z-7)*w,540+S(p)*v/Z*w,s=1+200/Z/Z,s))Z=C(p=i/63.67+t)*(v=i%8/8+1)+3

u/cantelope

testing out the new compressor :D
u/metamero

cool!!
u/katkip

I like that there is a cat and a mouse emoji in your code
u/iverjo

#colorful

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katkip

function u(t) {

c.width*=1;for(i=0;i<9;i++)for(j=20;j--;)x.fillStyle=R((o=j*7-i*3,o),o,o),x.fillRect(400+j*2+i*100+S(t)*300-S(t)*j*5,400-j*4,50,200)

Jan 19 2019 8:22 PM UTC

}// 132/140

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Most #realistic 3D #default! #d3

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katkip

remix of d/11891 by u/katkip

function u(t) {

c.width*=1;for(i=64;i--;)for(j=60;j--;)
x.fillRect(600+i*20-j*10,200+j*10+C(i*j/100-t*9)*20,10,10)

Jan 19 2019 7:46 PM UTC

}// 98/140

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#waves

u/username

Should the waves not reflect? I mean from a physical standpoint.
u/username

https://phet.colorado.edu/sims/html/wave-on-… Loose end and probably no damping
u/katkip

I don't know.

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katkip

remix of d/11885 by u/katkip

function u(t) {

seed=4
c.width*=1;for(i=43;i--;)for(j=71;j--;)
x.fillRect(j*30+S(i/seed+t)*100-100,i*30+C(j/seed+t)*100-100,30,30)

Jan 19 2019 6:50 PM UTC

}// 114/140

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It is going up. To go down, change seed=0.02

u/katkip

Haha, this got 20 likes
u/Xen

seed=5+C(t)*2
u/katkip

The perfect straight one is seed=.0123
u/katkip

44 likes om!
u/vain

Very cool and smooth looking fx

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yonatan

remix of d/9776 by u/yonatan

function u(t) {

T=f=>f(i)+f(i*i)*i**.5*t
for(i=9e3;t<4&&i--;q>9e3|q<99&t<2&&x.fillRect(960+a,540+b+t*t*2,4-t,4-t))a=T(S),b=T(C),q=((a*a)**.5-99)**2+b*b

Jan 18 2019 8:29 PM UTC

}// 135/140

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