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.
blue martian dunes in a dust storm: c.style.background='#CBA486';if(t<3)for(i=2096;i--;)x.fillStyle=R(l=S(t)*i/20,l/.65,l/.5),x.fillRect(i-99,1080-C(S(t+i/270))*S(t)*i/6,7,7)
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)