Sine Wave Portal by DotsnLines

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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DotsnLines

function u(t) {

c.width = 1920;
for(let i = 0; i < 1201; i++){let j = 600 - i;x.fillRect(Math.sin(t/500*i)*i*0.75+960,Math.cos(t/500*i)*j*0.75+540,8,8)}

Dec 16 2022 10:10 PM UTC

}// 136/140

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Sine Wave Portal

u/joeytwiddle

pretty!
u/4ce

Hello u/DotsnLines & everyone; maybe someone need versions this d/26627 with 90symbol: c.width+=0;for(i=1201;i--;)j=600-i,n=t/500*i,x.fillRect(S(n)*i*.75+960,C(n)*j*.75+540,8,8) and if you want get line 123symbol: c.width+=0;x.lineWidth=9;x.beginPath();for(i=1201;i--;)j=600-i,n=t/500*i,x.lineTo(S(n)*i*.75+960,C(n)*j*.75+540);x.stroke() ~_^


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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