Top dweets by u/ersagun

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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ersagun

function u(t) {

a=t*339525;r=62*t**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 24 2018 3:33 AM UTC

}// 59/140

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Simpler is better right?

u/pavel

56 r=62*t**.5;x.fillRect(r*C(t*=339525)+960,r*S(t)+540,8,8)

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ersagun

remix of d/4868 by u/Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=t*339525;r=62*t**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 24 2018 2:17 AM UTC

}// 129/140

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I think 339525*t instead of 2.3998*frames is much better. :)

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ersagun

function u(t) {

for(b=0;b<99;b++)for(a=0;a<99;a++)A=a/t,B=b/t,x.fillStyle=R(S(A*C(B*S(A)*S(B))*C(A*S(B)*S(A)))*99+99),x.fillRect(a*9,b*9,9,9)

May 7 2020 12:31 PM UTC

}// 125/140

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I don't even know. I am just playing with sines and cosines at this point.

u/Xen

#waitforit

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ersagun

remix of d/18381 by u/Xen

function u(t) {

t?x.transform(z=C(d=Math.PI*4/(5**.5+1)),Z=S(d),-Z,z,0,!x.fillRect(0,0,.5,399)):x.translate(960,540)

Apr 23 2020 12:55 PM UTC

}// 100/140

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#circlechallenge let's sprinkle a little phi in the mix

u/Xen

nicely done

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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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ersagun

remix of d/18292 by u/ersagun

function u(t) {

if(!t)B=[-1,0,1,A=0],X=Y=700;z=frame;while(~z&1)z/=2;x.fillRect(X+=B[(A+=z&3)&3],Y-=B[~A&3],1,1)

Apr 16 2020 11:39 PM UTC

}// 96/140

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Dragon curve #fractal This is all I can golf.

u/ersagun

It may have an integer overflowing problem with the angle. I couldn't wait that long to confirm it.

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ersagun

remix of d/18403 by u/BriSeven

function u(t) {

X=(t%1)*600-300,Y=t*10-300
X*X+Y*Y<9e4&&x.fillRect(X+950,Y+540,10,10)

Apr 23 2020 3:19 PM UTC

}// 69/140

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just playing with it

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ersagun

remix of d/18372 by u/KilledByAPixel

function u(t) {

a=Math.abs(X=t?X+.01:-1);x.strokeRect(960-(W=a**.5*300),540-(H=(1-a)**.5*300),W*2,H*2)

Apr 23 2020 3:07 PM UTC

}// 86/140

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ersagun

remix of d/18381 by u/Xen

function u(t) {

t?x.transform(.6,.8,-.8,.6,0,!x.fillRect(0,0,5,399)):x.translate(960,540)

Apr 23 2020 2:25 PM UTC

}// 73/140

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#circlechallenge minimal

u/donbright

nice moire patterns

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ersagun

function u(t) {

if(!t)X=Y=A=Z=0;for(i=2e3;--i;X+=S(A+=((z&2)-1)*Math.PI/2),Y+=C(A),x.fillRect(X+680,Y+740,1,1)){z=++Z;while(~z&1)z/=2}

Apr 16 2020 9:43 PM UTC

}// 118/140

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Dragon curve #fractal

u/ersagun

You could get rid of that for loop and make this into a slow loader instead but I think it's better this way. Also, my golfing skills are a mess.
u/Xen

nice start

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