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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rodrigo.siqueira

remix of d/23456 by u/rodrigo.siqueira

function u(t) {

for(c.width=w=512,d=new ImageData(w,w),m=w*w,i=-1;m--;d.data[i+=4]=T(Y/r-t*9|X/r)*w)r=((X=m%w-128)*X+(Y=m/w)*Y+i)/5e4
x.putImageData(d,0,0)

Aug 2 2021 9:37 PM UTC

}// 139/140

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Fly over a pixel surface

u/tomxor

oooh

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rodrigo.siqueira

remix of d/23443 by u/danny@hille.dk

function u(t) {

for(c.width=w=512,d=new ImageData(w,w),m=w*w,i=-1;m--;d.data[i+=4]=T(m/w/r+t*30|X/r)*w)r=((X=m%w-256)*X+m*m/2e5)/3e4
x.putImageData(d,0,0)

Aug 1 2021 4:28 PM UTC

}// 138/140

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Rising from curved space

u/Xen

very nicely
u/Toby

Lovely! How can you use r in the loop header without first defining it (done in the loop body)?
u/danny@hille.dk

Creative use of geme mechanics :-) The for loop has 3 sections separated with semicolons, first is for initializing: this is runs once before the loop starts, second is exit conditions: runs for every iteration before the "loop scope", third is for incrementation: this part actually first run after the loop scope. EX: for(i=9;i--;console.log(j))j=i*2 i is initalized to 9 i is decremented if i equals 0 (any number in js is evaluated to true except 0 wich is false) the loop exist then the j is set to two times i in "loop scope" finally j is printet to the console

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KilledByAPixel

remix of d/23452 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󡬽󚍁󛍩󟜰󛍺󛍰󟝃󚍴󚽮󚭮󚼫󚜯󝌫󛬵󚜽󟭩󚼫󟬹󟽸󛭦󪝬󫍒󩝣󭌨󛬮󛭁󛍸󛭳󭍲󫽫󩝒󩝣󭌨󛬮󛭁󚜬󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮽮󯜠󞌰󙜤󮽁󦼲󧜪󠝛󜽝󛼹󞝽󙝠󚜺󡬨󠜽󦼮󛬮󠝝󛍩󛍺󟝁󦼲󚽩󙜲󧜪󟝰󛍆󚍁󛍩󚜬󠝛󪜥󟜲󧜫󟝺󛍁󦼲󚽩󧜽󮬯󬌭󮬩󒭆󚍛󝌶󜌬󝌰󛍮󟜱󩜳󛍮󧜩`.replace(/u../g,'')))

Aug 1 2021 3:28 PM UTC

}// 140/140

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Recursion Soup

u/taupelink

excellent
u/TGY

amazing
u/Xen

highly sexy, i can however sense the next version ;-)
u/vain

Wow! Really cool looking effect and great color sheme !!! love it

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New_Core

function u(t) {

for(c.width|=i=5,x.translate(900,800);i--;)x.font=6-i+"cm A",x.rotate(C(t-3**S(a=t-i-1))/9),x.fillText(i<1?"🚍":"🚔",199*C(a*1.3)-99,-i*50)

Aug 1 2021 1:55 PM UTC

}// 137/140

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Movie: Speed

u/KilledByAPixel

Nice! #speed

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KilledByAPixel

remix of d/23418 by u/KilledByAPixel

function u(t) {

c.width|=A=Math.abs
for(i=w=98;i--;x.rect(T*i+25,A(T*i-951)+1e3*((t+i/2)%1-.5)**2,T=49,T))x.rect(q=w*(i+t%1-1),300+A(q-951),w,-2e3)
x.fill()

Jul 29 2021 4:10 AM UTC

}// 140/140

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The March of Progress ▲

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KilledByAPixel

remix of d/23416 by u/KilledByAPixel

function u(t) {

c.width|=A=Math.abs
for(i=w=99;i--;x.arc(q=i*88,A(q-1e3)+800*((t-i/9+w)%1-.5)**2,30,0,9))x.rect(q=w*(i-t%1)-50,230+A(q-950),w,2e3)
x.fill()

Jul 28 2021 5:56 PM UTC

}// 139/140

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Bouncy Mountain ⛰️

u/katkip

interesting

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tomxor

remix of d/23413 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𜀻𪐭𛐻𪰽𤰦𤠼𝐿𛠱𜠵𛑒𛰴𜀺𜀬𥐭👫𚡡𛁖𛐽𪰪𨠩𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙👩𛱷𛀱𛁓𯁒🀵𚐬𤰽𥀨𥀨𠰨𦀯𜐰𚐪𠰨𦐯𞐫𭀩𚐩🁙𛰹𛐳𚰳𚡃𚁴𚐬𤠽𣑡𭁨𛡨𮑰𫱴𚁡👘𛑁𛁢👙𛑂𚐻𠐫👕𚱷𛁂𚰽𥠪🐮𞐬𠐥👷𛁖𚰽𛠱`.replace(/u../g,'')))

Jul 28 2021 12:57 AM UTC

}// 140/140

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"This Thing" Capturing a Marble #Physics

u/magna

!!!
u/katkip

OMG

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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𚁁👂🐸𛁕👖🐰𚐻𪐭𛐻𪰽𥀦𤠼𝐿𛠲𝐭𤠯𜠰𞠰𛁕𛐽𪰪𨐬𥠭👫𚡢𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𝐩𛁔👓𚁘𛰶𚐫𠰨𦐯𝠩𚱙𛰶🠸𛁒👍𨑴𪀮𪁹𬁯𭀨𨐽𦀭𠐬𨠽𦐭𠠩𞱁𚰽𥐬𠠫👖𛁁𚰽𭰬𠐥👷𛁖𚰽𛠱𜠵`.replace(/u../g,'')))

Jul 28 2021 12:08 AM UTC

}// 134/140

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Impossible Marble #Physics

u/tomxor

Inspired by d/23398. Uses raster/2d-voxel based intersection
u/Xen

love it!
u/magna

HOW?!
u/katkip

how
u/tomxor

It's particle physics, but the collisions are with implicit volumes. So rather than checking against a specific object, each pixel is intersected with the circle, if the pixel is filled and intersects, then it contributes velocity to the particle along the collision normal (the vector between the pixel and the point), the deeper the intersection based on the radius the greater the contribution... this is not correct at all and creates lots of phantom momentum, but is very simple and shares the code with drawining the screen.

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ArthurThuczsec

remix of d/23410 by u/danny@hille.dk

function u(t) {

for(Y=t/18-1,f=i=4e3;i--;x.fillRect(i/2,30*t,.1,r*f))r=((X=i/540-4)*X+Y*Y)/f,x.fillStyle=`hsl(${S(X/r&Y/r)*f},99%,${69-r*f}%)`

Jul 27 2021 8:41 PM UTC

}// 126/140

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fullscreen version

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rodrigo.siqueira

remix of d/23404 by u/rodrigo.siqueira

function u(t) {

for(x.drawImage(c,C(t*4)*2-40,S(t*3)*2-15,i=2e3,1111);i--;x.fillStyle=`hsl(${i+155},90%,${i}%)`)x.fillRect(960+i*i*C(t*i),540+S(i)*i,2,2)

Jul 27 2021 6:31 PM UTC

}// 137/140

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Astral Voyager

u/danny@hille.dk

I want this as a screensaver!
u/rep_movsd

Flight through the speed force
u/jellyedwards

Very cool!
u/katkip

beautiful
u/smtsjhr

love it!

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