Top dweets 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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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andrea270872

function u(t) {

x.strokeStyle='#531'
x.lineWidth=C(t*7)
for(i=12;i-->0;x.beginPath()){x.arc(i*170+13*C(t),i%3*460,((t+i)%4)**4,0,7);x.stroke()}

Feb 10 2020 6:53 PM UTC

}// 127/140

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Petri Dish growth v0.6

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andrea270872

function u(t) {

c.width|=r=Math.random
A=[K=500,K,r()*5-2,-r()*10]
P=t?P.map(([i,j,u,v]=e)=>[(i+u)%2e3,j+v,u,v+.1,x.fillRect(i,j,8,8)]):[A]
P[K]?0:P.push(A)

Mar 15 2019 11:30 AM UTC

}// 140/140

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Particle Fountain, variable number of particles, max 500, non-repeating

u/andrea270872

Thanks to LimeLaser for the examples on the use of arrays!
u/katkip

#firework
u/LimeLaser

This is great, I dig it!

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andrea270872

remix of d/28279 by u/rodrigo.siqueira

function u(t) {

with(x)for(fillRect(0,0,w=2e3,i=w);i--;strokeRect(960-i/2,540-i/2,i*2,i))setLineDash([i,99,i]),strokeStyle=R(lineDashOffset=w+i*t,w)

Aug 13 2023 8:28 AM UTC

}// 132/140

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just playing around with the params and the shadows

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andrea270872

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👸𛡢𩑧𪑮𤁡𭁨𚀩𒡸𛡬𪑮𩑃𨑰🐧𬡯𭑮𩀧𒡸𛡬𪑮𩑗𪑤𭁨🐹𞐫𭀥𝐪𜐰𒡦𫱲𚁩🐸𞱩𛐭𞰩𮱸𛡭𫱶𩑔𫰨𞐹𚠨𜐫𜠪𪐫𤰨𭀩𚐬𜰰𜀫𞐹𚡓𚁴𚱩𚐫𪐪𜐹𚐊𮀮𫁩𫡥𥁯𚀴𜀰𚰹𞐪𚀲𚡩𚱓𚁴𚱩𛰹𚐩𛀷𜀰𚰹𞐪𤰨𭀩𚱩𚠱𞐩𯑸𛡳𭁲𫱫𩐨𚐠`.replace(/u../g,'')))

May 26 2021 6:28 PM UTC

}// 134/140

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alternative default ...

u/magna

#default
u/andrea270872

thanks :D

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andrea270872

function u(t) {

c.width|=K=30
t/=9
z=t%5
x.fillStyle='#025'
for(i=K*2;i--;)for(j=K;j--;)x.fillRect(i*K-i,j*K,A=5+K*C(P=7*z*(S(t)*i+C(t)*j)/K)**2-S(P)**2,A)

May 27 2020 5:20 PM UTC

}// 139/140

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Deep blue waves

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andrea270872

function u(t) {

c.width|=K=39
u=t%9-4
v=t/9-4
for(i=0;i<K;i++)for(j=0;j<K;j++)x.fillRect(i*K,j*K,A=K*C(P=44/7*(u*i/K+v*j/K))**2-S(P)**2,A)

May 24 2020 9:39 PM UTC

}// 123/140

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continuous motion, thru 2D DFT

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andrea270872

remix of d/18929 by u/Ectomorphed

function u(t) {

c.width|=0
x.font="25px'"
for(i=0;i<96;i++)
for(j=0;j<55;j++)
(S(4*t*j+i)+1)<0.5?x.fillText("⟋",i*20,j*20):x.fillText("⟍",i*20,j*20)

May 22 2020 6:08 PM UTC

}// 132/140

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Less random, more structure (perhaps?) :)

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andrea270872

function u(t) {

t=t%(c.height/t)
x.fillRect(t*t*S(t+t+t)+c.height,(t*t)%c.height,C(t)*t,t+t)

May 22 2020 11:38 AM UTC

}// 76/140

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#NoNumbers I wanted to try ... but it is not that interesting... I will try more later :D

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andrea270872

function u(t) {

c.width|=0
x.lineWidth=4
for(i=8;--i>0;x.fillStyle='#7'+i*9)A=[99,99+120*i,1/i*t%(i*2)*99,99],x.fillRect(...A,A[2]=1600),x.strokeRect(...A)

Feb 12 2020 10:57 PM UTC

}// 139/140

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"Getting there..." procrastination-style

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andrea270872

function u(t) {

u.x=u.x+u.v||8
u.v=u.v||4
u.v*=(4<u.x&u.x<180)?1:-1
c.width=192
a=50+S(t)*50
b='fillRect'
x[b](2,a-5,3,9)
x[b](185,a-2,3,9)
x[b](u.x,a,3,3)

Mar 5 2019 4:41 PM UTC

}// 139/140

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PerfectPong for 2

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