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.
just an idea ->c.width=300;for(i=9;i--;x.fillStyle='#a72')x.fillText("🖐",i*19+72+19*S(t),70-2*C(t+i));for(i=19;i--;)x.fillRect(i*16,70-T(i+12)/4,15.5,2e3)
Oh, like they're reaching over a fence? That's a fun interpretation, I was going for "hands poking out of dirt" but obviously a brown rectangle can be anything.
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)