Hot 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.

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Current theme challenge: #Opposites

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andrea270872

function u(t) {

t?(t/2>u.a.length?u.a=[1,...u.a.map((n,i)=>u.a[i]+u.a[i+1]||1)]:0):u.a=[1,1]
throw u.a

Feb 1 2021 4:50 PM UTC

}// 86/140

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Pascal's triangle, nice and slow

u/Xen

nicely done!
u/andrea270872

thanks ;)

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andrea270872

function u(t) {

f=(X,Y,a)=>{for(i=1;i<10;i+=.2){K=5*(10-i);x.fillRect(X+(250-a.x)/i-K,Y+(180-a.y)/i-K,2*K,2*K)}}
onmousemove=e=>f(800,450,e,c.width|=0)

Jan 30 2021 6:46 PM UTC

}// 135/140

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mouse-controlled tower with parallax #interactive #parallax

u/katkip

nice
u/tomxor

nice
u/andrea270872

Thanks :) I wanted to have 2 towers but I ran out of characters :D
u/danny@hille.dk

cool

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andrea270872

remix of d/21546 by u/andrea270872

function u(t) {

c.width|=t?(t%4<.01?u.a=[1,...u.a.map((n,i)=>n+u.a[i+1]||1)]:0):u.a=[]
u.a.map((n,i)=>{for(j=0;n;n>>=1)x.fillRect(i*99,j++*99,90,(n&1)*90)})

Feb 1 2021 5:54 PM UTC

}// 140/140

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Wait for it...

u/andrea270872

For some reasons I cannot do it with a single map operation... anybody can see why?

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andrea270872

function u(t) {

T=t%40
T<.1?c.width|=0:x.fillStyle='#A'+(26*~~(T/7)+10)
x.fillRect(800+S(T)*400,-130*~~(T/7)+920+S(20*(T%7))*70,40,120)

Jan 26 2021 8:32 PM UTC

}// 120/140

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pipe-a-cake

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andrea270872

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👴🱡👴𙠱𞡘👵𛡁👛𜰲𜑝𒡸𛡦𪑬𫁒𩑣𭀨𝐱𝐬𝀳𞀬𜠰𛀳𜀩𒡦𫱲𚁰𘁯𩠠𦀩𮀮𩡩𫁬𤡥𨱴𚀵𜀪𚁰🠾𝐩𛀶𜀪𚁰𙠱𝐩𛀴𞀬𝐸𚐊𦀮𭑮𬱨𪑦𭀨𚀨𚁡𚱘𦰰𧐯𜰲𚐦𜰱𚐼🀵𚐫𚀨𜐭𨐫𦁛𜁝𚐦𜐵𚐩𒡩𩠨𦁛𜁝𘐽𜰲𜀩𦀮𬁯𬀨𚐠`.replace(/uD./g,'')))

Jan 23 2021 1:48 PM UTC

}// 130/140

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Snake attempt

u/andrea270872

The code is this:
u/andrea270872

c.width|=t?a=t&1:X=u.A=[321] x.fillRect(515,438,20,30) for(p of X)x.fillRect(50*(p>>5),60*(p&15),48,58) X.unshift((((a+X[0]/32)&31)<<5)+((1-a+X[0])&15)) if(X[0]!=320)X.pop()
u/ciaccodavide

check out #snake if you seek inspiration ;)
u/andrea270872

thanks :)

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andrea270872

function u(t) {

x.globalCompositeOperation='xor'
f=(n,a,b)=>n?f(n-1,a,a+(b-a)*.4)+f(n-1,a+(b-a)*.5,b):x.fillRect(a,t%8*180,b-a,(t/8)%8)
f(~~t%8,0,1900)

Jan 21 2021 12:10 PM UTC

}// 135/140

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Cantor's monoliths

u/Xen

nce

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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) {

x.fillStyle='#0DE'
for(i=~~t%7;i--;x.fillRect(1e3+9*t*S(6-i),500+10*t*C(6-i),5,5));
x.drawImage(c,0,0,2e3,1e3,T=t%3,T,2e3-2*T,1e3-2*T)

Dec 31 2020 4:21 PM UTC

}// 134/140

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snow crystals

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andrea270872

function u(t) {

a=t%1*2e3
b=(20*~~t)%1e3
x.fillStyle=R(C(a)*S(b)*80+80,160,0)
x.fillRect(a,b,35,20)

Oct 20 2020 2:49 PM UTC

}// 83/140

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just testing some ideas on the theme "what can I do without loops?"

u/solendil

#noloop

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andrea270872

function u(t) {

x.rotate(S(t/2)*.00069)
for(i=24;i--;)x.fillStyle=i%2?'#EDC':'#DCB',x.fillRect(60*t%2e3,i*50,S(t/2)+2,50)

May 29 2020 7:53 PM UTC

}// 105/140

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zen garden (?)

u/andrea270872

#waitForIt

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