Dweets awesomed by u/lars-erik

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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contone

remix of d/22556 by u/contone

function u(t) {

c.width|=0
for(i=1e3;i--;x.fillRect(C(u)*60+770+(i%2*330),S(u)*S(t)*70+450,20,20))u=i/60,
x.fillRect(i*2,(C(u/2.5)*3+S(u))*200+620,2,-2e3)

Apr 20 2021 1:49 AM UTC

}// 138/140

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lars-erik

remix of d/22561 by u/lars-erik

function u(t) {

t<3.8?x.fillRect(890+(t-=1.9)*200,500+((.8*t)**4-t*t-.1)*400,15,45):[1,0].map(i=>x.fill(x.ellipse(775+i*250,700,50,C(t)*30+30,0,0,7)))

Apr 19 2021 10:35 PM UTC

}// 134/140

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#Cat wakes 🐱‍💻😸 no. 2 golfed

u/magna

Awesome!

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lars-erik

remix of d/22554 by u/lars-erik

function u(t) {

t<3.8?x.fillRect(890+(t-=1.9)*200,500+((.8*t)**4-t*t-.1)*400, 15, 45):[1,0].forEach(_=>x.fill(x.ellipse(750+_*250,600,50,S(t)*20+20,0,0,7)))

Apr 19 2021 10:08 PM UTC

}// 140/140

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#Cat wakes 🐱‍💻😸

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clavigne

function u(t) {

a=(c.height=1080)/2;x.translate(960,a);for(n=1;n<99;n++){x.rotate(30*(r=a*S(n)**2)/a);w=20*S(s=t+n+r);x.fillRect(r*C(2*s+1.6),0,w,w)}

Apr 19 2021 8:06 PM UTC

}// 133/140

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u/deltuhvee

Oort Cloud
u/magna

125: a=(c.height|=0)/2;x.translate(960,a);for(n=99;n--;x.fillRect(r*C(2*s+1.6),0,w,w))x.rotate(30*(r=a*S(n)**2)/a),w=20*S(s=t+n+r)

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taupelink

function u(t) {

for(i=k=270;--i;x.fillRect(k*X*C(Y),k*X*S(Y),q>>(Y+t),i>>(q%Y+t)))f=7*i*t,X=f*f%9,Y=X*f%2,x.fillStyle=`hsl(${q=i*X%k},70%,${1e4/q}%,${q/k})`

Apr 19 2021 5:39 PM UTC

}// 140/140

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d/22559

u/lars-erik

Looks like a bunch of people looking at something shiny. Maybe they're at a concert? 😁 (I might have a slight touch of covid quarantene symptoms...)
u/taupelink

I was going for something more abstract, but that's a nice interpretation!

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rodrigo.siqueira

function u(t) {

K=3.5
if(!t){for(b=-K;b<=K;b++)for(C=-K;C<=K;C++)for(a=-K;a<0;a++)for(X=680;X--;x.fillRect(X*1.7+380,540+Y,2,2))Y=(C*120+a*(X-340))/b*1.5}

Apr 19 2021 4:20 PM UTC

}// 138/140

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Cover of "Computers And Automation And People" magazine, January, 1973. I was able to recreate the image based on a small description (in page 5): "Front Cover Picture: The front cover drawing, called "Phropase", was produced by an Algol 60 program, drawing straight lines ax + by + c = 0, where a, b and c were "stepped arithmetically in nested loops". The computer used was an ICL 1904A, driving a Calcomp 1934/6 plotter. The programmer artist is Nihan Lloyd-Thurston.

u/rodrigo.siqueira

Here is the full journal with it's cover artwork and description: https://archive.org/details/bitsavers_comput… "Computers And Automation And People", Jan., 1973
u/smtsjhr

thats so cool and well done! I find this kind of exercise to be very inspiring : )

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contone

remix of d/22554 by u/lars-erik

function u(t) {

for(i=1e3;i--;x.fillRect(C(u)*60+760+(i%2*330),S(u)*70+450,50,19))u=i/60,x.fillRect(i*2,(C(u/2.5)*3+S(u))*200+600,20,50)

Apr 19 2021 4:00 PM UTC

}// 120/140

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lars-erik

function u(t) {

eval(unescape(escape`𪑦𚁴🀳𛠶𚑻𭀭🐱𛠸𞱸𛡦𪑬𫁒𩑣𭀨𜐲𝐰𚰨𛐱𛠸𚱴𚐪𜠰𜀬𝐰𜀫𚀨𛐰𛠱𚰨𜀮𞀪𭀩𚠪𝀭𭀪𚠲𚐯𚀭𝐯𜐰𚐩𚠭𜠰𜀬𘀱𝐬𘀴𝐩𯑥𫁳𩑻𩡯𬠨𪐽𜠻𪐭𛐻𮀮𨑲𨰨𝰵𜀫𪐪𜰰𜀬𝠰𜀬𝐰𛀰𛀶𛠲𞀩𚑸𛡦𪑬𫀨𚑽`.replace(/u../g,'')))

Apr 19 2021 10:23 AM UTC

}// 120/140

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Cat! 🎉🙈

u/lars-erik

Uncompressed
u/lars-erik

if(t<3.6){t-=1.8;x.fillRect(1250+(-1.8+t)*200,500+((-0.1+(0.8*t)**4-t**2)/(-5/10))*-200, 15, 45)}else{for(i=2;i--;x.arc(750+i*250,600,50,0,6.28))x.fill()}
u/erin

cute

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lars-erik

remix of d/22552 by u/lars-erik

function u(t) {

if(t<3.6){t-=1.8;x.fillRect(1250+(-1.8+t)*200,500+((-0.1+(0.8*t)**4-t**2)/(-5/10))*-200, 15, 45)}else{x.arc(750,600,50,0,6.28);x.fill()}

Apr 19 2021 9:42 AM UTC

}// 136/140

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Fuller, angrier one-eyed cat

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lars-erik

function u(t) {

if(t<3.6){t-=1.8;x.fillRect(1250+(-1.8+t)*200,500+((-0.1+(0.8*t)**4-t**2)/(-5/10))*-200, 15, 15)}else{x.arc(750,600,50,0,6.28);x.fill()}

Apr 19 2021 9:41 AM UTC

}// 136/140

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One-eyed cat

u/lars-erik

Just needed to get that parabola cat-profile in there. No time to golf two eyes. 🤦‍♂️😂

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