New dweets | Dwitter

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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taupelink

remix of d/15316 by u/taupelink

function u(t) {

for(i=1e3,d=e=f=0;i--;d+=((r=Math.random(l=.7)*7|0)-2-d+e*f*C(d)/2)*l,e+=(2-r%3-e+d*e*f/2)*l,f+=(r%2-f-d*e/18)*l)x.fillRect(d*640,e*405,1,1)

Aug 12 2019 5:43 PM UTC

}// 140/140

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Tree-like scene

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asciislinger

function u(t) {

d=20*Math.random()
f=function(xr,yr,xo){
x.fillRect(960+C(t)*xr+xo,540+S(t)*yr,d/2,d*20)}
f(512,512,0)
for(i=0;i<2;i++)f(80,10,i*-250)

Aug 12 2019 2:05 PM UTC

}// 134/140

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Black metal one

u/katkip

awesome

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taupelink

function u(t) {

r=Math.random;j=r(Y=r(E=-500)*2e3)*5|0;for(i=9;i--;x.fillRect(frame*3+E+20*i*(k=5-j),Y+E,50-10*j,40*k))x.fillStyle='#'+"00069FF".substr(j,3)

Aug 12 2019 12:55 AM UTC

}// 140/140

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Repackaged #default bars, across the screen in varying colors/scales

u/taupelink

Substring technique borrowed from https://www.dwitter.net/d/14621
u/taupelink

Unlike previous dweets, this one works its way across the screen, left to right, #waitforit and then stops

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katkip

remix of d/15393 by u/katkip

function u(t) {

eval(unescape(escape`𒡩𩠨𘑴𚑻𬐽𦱝𞱦𫱲𚁩🐱𞐲𞱩𛐭𞰩𬐮𬁵𬱨𚁩𙐳𚑽𩡯𬠨𪐽𜐻𪐼𬐮𫁥𫡧𭁨𞱩𚰫𚑸𛡦𪑬𫁓𭁹𫁥👒𚁱𦱩𧐪𜐲𞀩𛁱𦱩𧐽𚁱𦱩𚰱𧐪𬑛𪐭𜑝𧠲𧡱𦱩𧐩𙐳𛁸𛡦𪑬𫁒𩑣𭀨𪐪𜐰𛀰𛀱𜀬𜐰𚐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜐰𚐻`.replace(/u../g,'')))

Aug 11 2019 5:33 PM UTC

}// 124/140

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Extremely interesting rule I discovered!

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱱👛𧐻𩡯𬠨𪐽𞐳𞱩𛐭𞰩𬐮𬁵𬱨𚁓𚁩𚑼𜀩𯑦𫱲𚁩🐱𞱩🁱𛡬𩑮𩱴𪀻𪐫𚰩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𬑛𪑝🰲𝐵𞠰𚐬𬑛𪑝🐡𬑛𪐫𜑝𧡱𦱩𛐱𧑞𬑛𪑝𛁸𛡦𪑬𫁒𩑣𭀨𪐪𜠰𛀰𛀲𜀬𜠰𚐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜠰𚐻`.replace(/u../g,'')))

Aug 11 2019 5:24 PM UTC

}// 123/140

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Awesome cellular automation rule I found.

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KilledByAPixel

remix of d/15354 by u/KilledByAPixel

function u(t) {

for(i=99;i--;)for(j=0;j<9;x.clearRect(i*T,S(i)*650,5,!j*5,x.fillRect(i*T,j++?60*j+500+99*C((i+t*j**3)/9)/j:0,T=20,2e3)))x.fillStyle=R(j*25)

Aug 11 2019 5:36 AM UTC

}// 139/140

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Alien #Landscape with Stars

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DataMeta

remix of d/12610 by u/ear7h

function u(t) {

w=960,h=540;for(i=0;i<70;i+=0.1)u=i*h/20,Q=(u-w)*(u-w)/4.2e5-1,
x.fillStyle=R(l=i^t*i%255,l,l),x.fillRect(u,h+S(t+i)*l*Q,d=9,9)

Aug 11 2019 5:18 AM UTC

}// 127/140

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u/magna

Sweet!

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sarahkittyy

function u(t) {

c.width^=0;typeof v!='object'?v=[]:v.push([960,1e3,C(t*9)*9,10]);for(p of v){p[0]+=p[2];p[1]-=p[3];p[3]-=0.06;x.fillRect(p[0],p[1],9,9)}

Aug 11 2019 4:45 AM UTC

}// 136/140

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particles~

u/aleamb

nice!
u/robbyg

A 105b version: c.width^=0 t||(v=[]) v.push([960,1e3,C(t*9)*9,10]) v.map(p=>x.fillRect(p[0]+=p[2],p[1]-=(p[3]-=.06),9,9))

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taupelink

remix of d/15380 by u/taupelink

function u(t) {

g=(a,b)=>b?g(b,a%b):a;f=()=>Math.random()*1e7|0;t||(m=n=0);n++;g(f(),f())-1||m++;x.fillRect(n%1920,1080*(1-m/n),1,1);throw m/n

Aug 11 2019 4:25 AM UTC

}// 126/140

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If you take two random integers of at most 7 digits each, what is the probability that they are relatively prime? This simulation suggests somewhere around 60%

u/taupelink

In the graph, the x-axis shows number of trials, modulo 1920 (i.e. with wraparound). The y-axis shows % of trials with GCD 1, with 0% at bottom and 100% at top.
u/taupelink

After a little Web searching: Under more general conditions, the precise answer appears to be 6/π^2, or about .608. See, e.g., https://www.cut-the-knot.org/m/Probability/T…
u/aleamb

#math

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sarahkittyy

function u(t) {

r=C(t)*255;g=S(t*2)*255;
x.fillStyle=R(r,g,127);
a=540-(13*C(t)-5*C(2*t)-2*C(3*t)-C(4*t))*30;
x.fillRect((Math.pow(S(t),3)+2)*480,a,9,9);

Aug 11 2019 4:21 AM UTC

}// 137/140

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a heart <3