New #circleChallenge dweets

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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iznax

function u(t) {

for(i=400;i--;)with(c[i]=t?c[i]:{X:i/7,Y:i,h:5,y:7}){X+=h,Y+=y
M=X*X+Y*Y
D=M>16e4?(X*h+Y*y)*2/M:0
h-=X*D
y-=Y*D
x.fillRect(960+X,540+Y,9,9)}

Apr 22 2020 4:00 AM UTC

}// 140/140

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Do Light Rays Bouncing In A Circle Qualify? #circlechallenge

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BriSeven

function u(t) {

X=(t%1)*600-300,Y=t*10-300
if(Math.sqrt(X*X+Y*Y)<300)x.fillRect(X+950,Y+540,10,10)

Apr 22 2020 2:49 AM UTC

}// 82/140

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#circlechallenge

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DaSpider

function u(t) {

A=Array(s=2e3).fill().map(Math.random)
for(i=s;i--;(a-.5)**2+(b-.27)**2>.05?0:x.fillRect(a*s,b*s,5,5))a=A[i],b=A[s-i]

Apr 21 2020 11:42 PM UTC

}// 117/140

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#circlechallenge Monte Carlo Method

u/DaSpider

Using only good old Pythagoras. This method can be used to estimate π ≈ 4*(number of points in the circle / total number of points) // t?1:d=g=0;A=Array(s=6e3).fill().map(Math.random);for(i=s;i--;(a**2+b**2)**.5<=1?d++:1)a=A[i],b=A[s-i];g+=s;throw(4*d/g)

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ersagun

remix of d/18371 by u/BriSeven

function u(t) {

x.fillStyle=R(0,0,0,1-(X=C(t**1.2))*X-(Y=C(t**1.1))*Y)
x.fillRect(960+X*200,540+Y*200,5,5)

Apr 21 2020 10:30 PM UTC

}// 90/140

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u/BriSeven

#circlechallenge
u/donbright

now thats a use of fillstyle i have never seen before

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lionleaf

remix of d/18375 by u/sigveseb

function u(t) {

r=Math.random
for(i=899;i--;)R=r()*300,A=r()*6.28,x.fillRect(960+R*S(A),540+R*C(A),3,3)

Apr 21 2020 8:56 PM UTC

}// 87/140

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#circlechallenge - try changing the 6.28 to 6, 7 or 8 :)

u/donbright

i change it to t ;)

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DaSpider

function u(t) {

eval(unescape(escape`𩡯𬠨𮠽𚁣𛡷𪑤𭁨𯀽𜀩𛰴𛁢👄𨑴𩐨𚐮𬱬𪑣𩐨𜐶𛀲𝀩𛡳𬁬𪑴𚀧𞠧𚐬𮀮𭁲𨑮𬱬𨑴𩐨𮠪𜠬𮠩𛁩🐶𜀻𪐭𛐻𮀮𬡯𭁡𭁥𚀭𛠱𜀵𚐬𮀮𩡩𫁬𤡥𨱴𚀰𛀭𘑨𚡺𚰳𝐬𜐫𚁨𯁼𪐥𝐽🐰𚐪𝐬𛐳𜀭𪀪𮠩𚐊𪀽𛠵𚠨𪐽👢𦰰𧐥𜐲𚠵𚐫𚁩🐽𨡛𜑝𚐫𚁩🐽𨡛𜡝𚐊`.replace(/u../g,'')))

Apr 21 2020 7:04 PM UTC

}// 136/140

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Analog #clock

u/Xen

nice!
u/DaSpider

#time #analogclock #analog #circlechallenge

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ersagun

remix of d/18372 by u/KilledByAPixel

function u(t) {

x.fillRect(960-t*200,540-(w=(t*(2-t))**.5*200),4,w*2)

Apr 21 2020 6:59 PM UTC

}// 53/140

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Is this ok?

u/BriSeven

#circlechallenge

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Xen

function u(t) {

t?x.transform(z=C(3),Z=S(3),-Z,z,0,!x.fillRect(0,0,9,399)):x.translate(960,540)

Apr 21 2020 6:13 PM UTC

}// 79/140

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#circlechallenge

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New_Core

function u(t) {

c.style.filter=`blur(${30-30*S(t)}px)contrast(99)`
x.fillRect(620,240,680,600)

Apr 21 2020 1:33 PM UTC

}// 78/140

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with cutting edge technology #circlechallenge

u/New_Core

${5-5*S(t)}vw for the blur works better for fullscreen also..
u/lionleaf

Haha, love the pun

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sigveseb

remix of d/18368 by u/veubeke

function u(t) {

t||x.translate(960,540);x.rotate(0.005);x.fillRect(-1,-300,2,600);

Apr 21 2020 12:24 PM UTC

}// 66/140

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#circlechallenge

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