Dweets awesomed by u/andrea270872

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: #Opposites

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rodrigo.siqueira

remix of d/27506 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=t/T(i**2))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.1

May 15 2023 8:34 PM UTC

}// 137/140

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Vortex of Energy

u/tomxor

Also Quake1 logo... for a while.
u/deobfuscate

Looks a lot like cooler as fire: x.fillStyle=R() for(x.fillRect(0,0,w=3e3,w),x.fillStyle=R(255,100),i=2e4;i--;x.fillRect(960+S(p=t/T(i**5))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.3
u/deobfuscate

(not golfed btw)
u/andrea270872

Wow!
u/jdspugh

Great!

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cagsun

remix of d/27520 by u/cagsun

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;)x.fillRect(i,j,1,(S(j*j+i/j-t*2)+C(j**5-i/j*7+t)**3)*j/99)

May 12 2023 8:38 PM UTC

}// 94/140

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Remixing the water

u/jdspugh

Nice shimmer!

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rodrigo.siqueira

remix of d/27499 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=T(i**5))/(Z=1/i/(t%3)+1/(t<3?i:480)),540+C(p)/Z,K=3*S(i)+1,K))x.globalAlpha=.1

May 10 2023 1:19 PM UTC

}// 136/140

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Star pulse #sphere

u/deobfuscate

I cannot explain with words how cool this is.
u/donbright

if i undersand it, the "twinkling" really adds alot. they aren't all the same size of white particle?
u/rodrigo.siqueira

The "twinkling" is given by the particle size (2 last parameters of x.clearRect). Pixel size is defined by 3*S(i)+1, so it's between "3+1" and "-3+1" and the "i" makes it almost random for each pixel. An extra twinkling effect could be made by adding "t", but I thought it would be too exaggerated. You can try by changing to: K=5*S(i+t*4)

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rodrigo.siqueira

remix of d/27494 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(w/2+S(p=T(i**5+t)+t/19)/(Z=T(i)/3),w/4+C(p+4)/Z,K=3*S(t*3+i**3)**2,K))x.globalAlpha=.09

May 9 2023 12:40 PM UTC

}// 137/140

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Atomic energy levels

u/magna

Pretty!

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Smorg

function u(t) {

c.width=1920;
for(i=7;i--;)for(j=150;j--;x.beginPath(x.fill()))x.arc(960+100*i*C(t/i+j/70),540+100*i*S(t/i+j/70),j===149?(i*2.5)+15:5,0,10)

May 7 2023 9:54 AM UTC

}// 139/140

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Orbiting Planets

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rodrigo.siqueira

remix of d/26274 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=2e4;i--;x.clearRect(w/2+S(p=T(i**5))/(Z=T(i+t)/99),w/4+C(p+S(i*2)+Z)/Z,T(i-t+S(i+t)*9)/9,.7))x.globalAlpha=.04

May 6 2023 6:16 PM UTC

}// 140/140

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Nuclear reactions

u/Joachim

Wow!
u/BuRRak

This would make for a sick wallpaper
u/andrea270872

nice, kind of nuclear! :D

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andrea270872

remix of d/27492 by u/andrea270872

function u(t) {

for(c.width|=i=99;i--;)x.fillRect(i*20,1e3,20,-17*t%i*9)

May 6 2023 8:44 AM UTC

}// 56/140

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emerging... (wait for it... it gets periodic)

u/Volfegan

Looks like some kind of sort() in progress

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andrea270872

remix of d/27472 by u/Xen

function u(t) {

for(c.width|=i=99;i--;)x.fillRect(i*20,0,20,2e3/(S(t&i*i/9)+2))

May 6 2023 8:32 AM UTC

}// 63/140

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more "square" ...

u/Xen

nicely done!
u/andrea270872

thanks :)

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andrea270872

remix of d/27472 by u/Xen

function u(t) {

for(c.width|=i=99;i--;)x.fillRect(i*20,0,20,2e3/(S(t&i*i/9)+2))

May 6 2023 8:32 AM UTC

}// 63/140

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more "square" ...

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁣𛡷𪑤𭁨𯀽𫀽𜠴𜀬𪐽𜱥𝀩𛁸𛡦𪑬𫁓𭁹𫁥👠𘱦𜀰𜱠𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𬰽𚀸𚱓𚁓𚁰👍𨑴𪀮𨑴𨑮𜠨𨐬𨠩𚱤𚠪𛠲𝐩𚡤𛱬𚐪𤰨𠰨𬀩𚡤𛰹𚱃𚁴𚐪𝐰𚐪𞀩𛁳𚐩𩀽𚁡🐹𝠰𛐨𦀽𪐥𫀪𞐩𚐪𚠲𛱬𚰨𨠽𝐴𜀭𚁙🐹𚡩𛱬𚐩𚠪𜠯𫀻`.replace(/u../g,'')))

May 5 2023 6:13 PM UTC

}// 140/140

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I'm saddened that I didn't notice the white space at the bottom, before I posted this and viewed it in dark mode ;/ oh well.

u/Joachim

Looks like an #illusion
u/Xen

love it!

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