Hot dweets by u/magna

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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magna

remix of d/23042 by u/magna

function u(t) {

p=n=>{a=0;for(i=n-1;i>1;)a+=!(n%i--);return a}
x.beginPath();q=t*3;r=q/Math.PI*9;x.arc(960+C(q)*r,540+S(q)*r,p(q|0),0,7);x.fill()

Jun 7 2021 10:51 PM UTC

}// 129/140

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Spiral graph of number of prime factors

u/magna

Change it to p(q|0)+1 for the real count.

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magna

function u(t) {

p=n=>{a=0;for(i=n-1;i>1;)a+=!(n%i--);return a}
x.fillRect(X=t*9|0,p(X),1,9)

Jun 7 2021 10:38 PM UTC

}// 75/140

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Quick sketch: number of prime factors of x versus x

u/magna

Spiral graph of number of prime factors
u/magna

Comment fail ^ Meant to fork: d/23043

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magna

remix of d/23044 by u/magna

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𩡩𫁴𩑲🐧𪑮𭡥𬡴𚀧𞱰👮🐾𮱡🐰𞱦𫱲𚁩👮𛐱𞱩🠱𞰩𨐫🐡𚁮𙑩𛐭𚐻𬡥𭁵𬡮𘁡𯐻𮀮𨡥𩱩𫡐𨑴𪀨𚐻𬐽𭀪𜰻𬠽𬐯𣑡𭁨𛡐𢐪𜰻𮀮𨑲𨰨𞐶𜀫𠰨𬐩𚡲𛀵𝀰𚱓𚁱𚐪𬠬𜰬𜀬𝰩𞱸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𬀨𬑼𜀩𚠹𯐬𞐹𙐬𝐰𙑠𞱸𛡦𪑬𫀨𚐠`.replace(/u../g,'')))

Jun 8 2021 12:34 AM UTC

}// 137/140

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Spiral graph of number of prime factors (hue edition) #slowdraw

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magna

remix of d/22870 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`睩瑨⡸⥻景爨眽挮睩摴桼㵣⹳瑹汥⹦楬瑥爽恩湶敲琨怬獴牯步却祬攽晩汬却祬攽刨眬〬眩㭷ⴭ㬩汩湥呯⡷ⰵ㐰ⵃ⡦牡浥⽷⭴⤪眥匨眯㌲⵴⤪㈵〪匨琫眯㌸⤩ⱦ楬汒散琨〬䵡瑨⹲慮摯洨⤪⨴⩷ⱷⰮㄩ㭳瑲潫攨⥽`.replace(/u(..)/g,"$1%")))

May 26 2021 11:00 PM UTC

}// 139/140

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Oscilloscope edition

u/magna

#glitch
u/tomxor

Nice #oscilloscope

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magna

function u(t) {

c.width|=0
x.scale(.5,1)
x.font='8cm"'
x.fillText('▮▮▮▮▮▮▮▮▮',800+S(t)*600,600)

May 27 2021 12:53 AM UTC

}// 79/140

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Unicode #default

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magna

function u(t) {

c.width|=0
x.globalCompositeOperation='xor'
for(i=18;i--;x.fill())x.beginPath(),x.arc(960,540,25+i*50+(S(t)+1)*150,0,7)

May 10 2021 8:13 PM UTC

}// 119/140

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polar #default

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magna

remix of d/22598 by u/magna

function u(t) {

c.width|=0
for(j=200;j--;)for(i=9;i--;x.fillRect(400+i*100+S(t-j/60)*300,400-j,50,200))x.fillStyle=j?`hsl(${j+t*999},99%,${50+j/4}%`:'#000'

Apr 23 2021 3:53 AM UTC

}// 139/140

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#default intensifies

u/tomxor

I'm a simple man, I see retro rainbow animation, I click awesome

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magna

function u(t) {

c.width|=0
for(j=4;j--;)for(i=9;i--;x.fillRect(400+i*100+S(t-j/30)*300,400,50,200))x.fillStyle=j?`hsl(${240*j+60},99%,50%`:'#000'

Apr 23 2021 3:46 AM UTC

}// 129/140

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#default color fringing

u/magna

j/60 looks better when fullscreen
u/Xen

nice!
u/andrea270872

I remember this...! :D My father would stand up and bang on the TV with his fist!
u/tomxor

Did the TV scream back "Please father, accept me for what I am!"

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magna

remix of d/21967 by u/magna

function u(t) {

(x.globalAlpha=t%1/9)<.03?c.width|=0:0
for(i=9;i--;x.fillRect(-25,-100,50,200))x.setTransform(k=C(A=i*t),z=S(A),-z,k,425+i*100+S(t)*300,500)

Apr 23 2021 3:36 AM UTC

}// 140/140

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#default

u/BackendForth

like watching a Snyder film

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magna

function u(t) {

c.width=1920
x.globalCompositeOperation='xor'
for(i=18;i--;)x.fillRect(400+i*50+S(t)*300,400+i*S(t/9)**9*200,2e3,200)

Apr 19 2021 12:25 AM UTC

}// 117/140

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#default xor #glitch

u/magna

#waitforit
u/DataMeta

whoa! nice one

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