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.
Real time planets position (not really precise but I tried); s = sun, p = planet. Orininal code: x.font='70px"';p=(d=new Date(),d).getTime()/1e4 x.fillText('s',900,560);for(i=0;i++<10;)x.fillText('p', 900+C(p*p/1e10+i*p/1e3)*999/i, 560+S(p*p/1e10*i*99/p+i*p/1e3)*999/i)
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)