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.fillStyle='#0EF'
for(i=1;i<~~t%8;i++)x.fillRect(1e3+8*t*S(i),500+9*t*C(i),3,3)
x.drawImage(c,0,0,2e3,1e3,T=t%1,T,2e3-2*T,1e3-2*T)

Dec 31 2020 4:31 PM UTC

}// 131/140

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snow crystals 2

u/jellyedwards

Very nicely done!
u/andrea270872

Thanks. The funny thing is that on my android phone... it crashes chrome! :D
u/DataMeta

wow!

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andrea270872

function u(t) {

T=t%39
x.fillStyle='#000'
~~T?0:x.fillRect(0,0,2e3,1e3)
x.fillStyle='#66'+~~(T+5)
for(i=1e3;i-->0;)x.fillRect(i*2,S((i^(t*7))/13)*9*T,2,9*T)

May 19 2020 10:43 AM UTC

}// 140/140

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pseudo-stalactite 2

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andrea270872

remix of d/17633 by u/andrea270872

function u(t) {

c.width|=K=190
for(j=44;j-->0;){A=[];T=(t/j)%3
for(i=50;i-->0;)A.push(K+j%9*K+C(i/T)*99,K+~~(j/9)*K+S(i/T)*99)
x.stroke(new Path2D('M'+A))}

Feb 15 2020 5:05 PM UTC

}// 139/140

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more shapes, still very fast :)

u/DataMeta

Cool!

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andrea270872

function u(t) {

~~t%3?0:c.width|=F=[x=>1-(x**2),x=>x,x=>(1-x)**3,x=>1-(1-x)**2]
for(i=900;i-->0;x.fillRect((i%15+t%1)*128,(i/15+F[i%4](t%1))*72,5,4));

Nov 24 2019 9:12 PM UTC

}// 134/140

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Experiments with "Fast&Frunky" easing functions - https://www.gdcvault.com/play/1022142/Math-f…

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andrea270872

function u(t) {

x.setTransform(A=~~t*12,B=~~(t%1*20)*12,-B,A,900,600)
for(i=7;i--;)for(j=7;j--;x.fillStyle='#90'+j)x.fillRect(i-3,j-3,.04,.04)

Jun 27 2019 9:24 AM UTC

}// 126/140

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Red Gauss Integers

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andrea270872

function u(t) {

$=t*97%11*180
H=t*500%1080
x.fillStyle=R(t*10%255,$/4,$/2,.4)
x.setTransform(1,0,0,1,$,H),x.rotate(t/3)
x.fillRect(0,0,50,50)

Mar 9 2019 3:21 PM UTC

}// 125/140

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gradient crystal scales ver2 (shorter thanks to a great suggestion)

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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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andrea270872

remix of d/24472 by u/XBagon

function u(t) {

r=Math.random
m=(r()*(r()-.5)+.5)*2e3
B=(x)=>(C(x*3.1)+1)/2
x.fillStyle=R(199+r()*50,t%1*99,0,.1)
x.fillRect(m,B(t)*1e3,B(t)*190,B(t)*190)

Dec 10 2021 4:34 PM UTC

}// 138/140

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changed the RGB to be more red-yellow: roaring fire

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andrea270872

function u(t) {

t?x.rotate(7):x.translate(99,99)
x.fillRect(55,55,4,4)

Nov 9 2021 6:44 PM UTC

}// 54/140

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#circlechallenge just for fun :)

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