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.
I did also play around with this.. =) I also did a shorter version where I used sin and cos directly on arc x,y instead of using rotate and translate... (didnt get exact same form so I let you guys try that on your own)
Funny how I came up with almost exactly same code d/8677 :D I like yours better though as it's better centered. I first thought the asymmetry made it more stylish but now I regret that choice
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)