Dweets awesomed by u/ciaccodavide

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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ciaccodavide

remix of d/24286 by u/ciaccodavide

function u(t) {

!t&&x.fillRect(0,0,2e3,2e3)
r=Math.random
for(n=13;X=r()*2e3,a=r()-.5,n--;)for(i=2e3;i--;)x.clearRect(X+a*(i-540),i,.2*Math.abs(540-i),t<.1)

Nov 3 2021 3:46 PM UTC

}// 140/140

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fragments

u/taupelink

Cool! I see a 3-D effect
u/donbright

yeah its like a city with spotlights shining into the sky, mirrored in water,.... or maybe like a gigantic hallway with really shiny floors and white ceilings with spires coming down to the floor as support

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ciaccodavide

function u(t) {

!t&&x.fillRect(0,0,2e3,2e3)






















































for(i=540;i--;)x.clearRect((r=Math.random)()*1920,i*2,1,1)

Nov 3 2021 3:33 PM UTC

}// 140/140

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u/Xen

tricky lol, nice
u/donbright

amazing

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magna

remix of d/24280 by u/magna

function u(t) {

c.width=f=255,k=40*(t+8)
for(i=f;i--;)for(j=f;j--;x.fillRect(i,j,1,(X*X+Y*Y)**S(t)**2-.2+S(k*X)*S(k*Y)*S(k/20/f)+(i&j)&1))X=i/f-.5,Y=j/f-.3

Nov 2 2021 6:46 PM UTC

}// 139/140

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Magic!

Show more comments…
u/magna

Keeps evolving #waitforit
u/cantelope

dafuq
u/magna

It all started with d/24264 courtesy of u/Jabo
u/taupelink

wow
u/Joachim

#sierpinski
u/Xen

love it!
u/donbright

beautiful
u/andrea270872

terrific stuff... I will have to study every character of your code!!
u/Jabo

Hero
u/joeytwiddle

magic ❤️

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cantelope

function u(t) {

x.fillRect(960+((b=t?b:[0,h=520,h/22.7,0])[0]+=b[2]),h+(b[1]+=b[3]),9,9,b[2]-=b[0]/h,b[3]-=b[1]/h)

Nov 2 2021 12:30 PM UTC

}// 98/140

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#circlechallenge (no sine/cosine)

u/donbright

does fillrect have 6 parameters here?
u/cantelope

heh. it only looks at the first 4. i'm not actually saving any space by including 6 parameters, but why not? :)
u/cantelope

can you see how this circle method works? there is an array with 4 elements, the first 2 being positions (x,y), and the last 2 being analogous to a vector (in physics) with magnitude and direction, or simply (velocity-x, velocity-y). The velocity vector is added to the position coordinates once per frame and is itself adjusted in a way to create a perfectly circular "orbit" about the origin. Interestingly, this approach can be extended into 3 or more dimensions, and involve, obviously, more than 2 bodies. 3-body orbital chaos can be very interesting and beautiful, e.g. https://code.dweet.net/full/2w8z

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stephanegeorget

function u(t) {

c.width=1e3
f=(a,b)=>{x.beginPath();for(j=9;j--;x.lineTo(a+S(j+t*5)*6,j*9+b),x.stroke());}
for(i=1e3;i--;f(4e2+S(i^3)*250,C(i^2)*2e2+200));

Nov 1 2021 12:14 PM UTC

}// 139/140

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Yet another Lissajous

u/DataMeta

cool #lissajous

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UEZ

remix of d/24233 by u/TGY

function u(t) {

for(c.width=i=1e3;i--;x.fillRect(S(i^9)*99*m+500+S(t*3)*200,400+m+S(t*6)*59,m*3,-m*9))m=200/(99-(t+i)%99),x.fillStyle=R(0,0,0,1-m/255)

Oct 27 2021 7:06 AM UTC

}// 134/140

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city walk with alpha ^^

u/ciaccodavide

nice! I made it faster and with less head bobbing ;) for(c.width=i=1e3;i--;x.fillRect(S(i^9)*99*m+500+S(t*3)*33,400+m+S(t*6)*9,m*3,-m*9))m=200/(99-(t*9+i)%99),x.fillStyle=R(0,0,0,1-m/255)

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ciaccodavide

remix of d/24242 by u/ciaccodavide

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐱𒡸𛡬𪑮𩑗𪑤𭁨🐱𞐊𩡯𬠨𮀮𨡥𩱩𫡐𨑴𪀨𚐬𪐽𞐹𛁰🐶𛠲𞀯𪐻𪐭𛐻𮀮𬱴𬡯𪱥𚀩𚑸𛡬𪑮𩑔𫰨𞐶𜀫𠰨𪐪𚁰𚰱𚐩𚠳𞐰𚡓𚁴𚐬𝐴𜀫𤰨𪐪𚁰𚰱𚐩𚠳𞐰𚐬𮀮𩡩𫁬𤡥𨱴𚀹𝠰𚱃𚁩𚠨𬀫𜐩𚐪𝀰𜀪𤰨𭀩𛀵𝀰𚱓𚁩𚠨𬀫𜐩𚐪𝀰𜀬𜐲𜰪𠰨𭀩𛀲𚐊`.replace(/u../g,'')))

Oct 26 2021 12:30 PM UTC

}// 139/140

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cog proto

u/magna

Very cool! (Slow AF tho)
u/tomxor

ooh, i can almost feel the shape of it in my hand
u/cantelope

relevant https://code.dweet.net/d/2w9l
u/cantelope

also https://codegolf.dweet.net/a/557

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ciaccodavide

function u(t) {

c.width|=1
x.lineWidth=12
for(x.beginPath(),i=49,p=6.28/i;i--;x.stroke())
x.lineTo(960+C(i*(p+1))*400*S(t/3),540+S(i*(p+1))*400,400,0,7)

Oct 26 2021 12:21 PM UTC

}// 137/140

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ciaccodavide

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👰🐱𞀰𒡦👫🐾𪰾𜀿𦱃𚁴𚱫𚠳𛠱𝀩𚠱𞀰𛱫𚱦𚁫𛐱𚑛𜁝𛁓𚁴𚱫𚠳𛠱𝀩𚠱𞀰𛱫𚱦𚁫𛐱𚑛𜑝𛁦𚁫𛐱𚑛𜡝𛑰𛱫𧐺𦰰𛀰𛀵𜠰𧐊𩡯𬠨𮀮𫁩𫡥𥱩𩁴𪀽𪐽𞐻𪐭𛐻𚑛𩰬𪀬𪡝👦𚁩𚐬𮀮𨡥𩱩𫡐𨑴𪀨𮀮𨑲𨰨𞐶𜀫𩰬𝐴𜀫𪀬𪠬𜀬𝰩𛁸𛡳𭁲𫱫𩐨𚐩𒠠`.replace(/u../g,'')))

Oct 25 2021 7:25 PM UTC

}// 140/140

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arc nest

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ciaccodavide

function u(t) {

for(c.width=w=~~(1+t)%512,i=w*w;i--;)
x.fillStyle=`hsl(${(i*i+t*99)%85*3},50%,50%`,
x.fillRect(i%w,~~(i/w),1,1)

Oct 25 2021 2:21 PM UTC

}// 111/140

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