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.
Original code: if(!t){onmousemove=e=>y=e.y/6-5;y=o=0}c.width=96;for(i=0;i<3;x.fillRect([0,2+(X=f(45)),94][i],[y,Y=f(26),Y-4][i],2,10-i++%2*8,o=~~X?o:y-2<Y&&y+10>Y?o:t))f=m=>Math.abs(((t-o)**1.1)*m/40%4-2)*m
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)