Basic Christmas tree! :) by Atti

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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Atti

function u(t) {

x.fillStyle="green";for(i=1085;i--;){d=i/3+80*T(i%300/260);x.fillRect(950-d,i,2*d,1)}

Dec 22 2016 5:15 PM UTC

}// 85/140

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Basic Christmas tree! :)

u/Atti

A more elaborate version, that's currently too long: for(i=1085;i--;){x.beginPath();x.fillStyle=i<5?i%2?"red":"white":"green";d=i/3+80*T(i%300/260);i>5?x.rect(950-d,i,2*d,1):x.arc(900+i*S(i)*100,400+i*200,50,0,6);x.fill()}
u/Atti

Any help is appreciated in building an epic Dwistmas tree!
u/iverjo

Nice :) I made one last year, using a very different technique: https://www.dwitter.net/d/98
u/Atti

Cool! :)


      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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