love your approach! This is much better than my approach on boss fights.
I use the distance between player and boss to decide whether it is close range or long range. Then set up some parameters for close range attack A and close range attack B and randomly pick an close range attack state (A or B). I thought it might be more responsive to the player's action and the pattern will be different in every fight. But the issue with this approach is that sometimes the boss might repeat the same attack again and again,
I will combine your (groups of attacks) pattern with my close range long range approach. I believe my future boss fight game will be more challenging and fun.
My favorite combo is the punch + shockwave ! So well decided that knowing the player will roll to the boss's back and attack. And then the boss attack from above. Also appreciate your hard work with coding all the boss's attack pattern. Cant wait for your next game.