2 new ideas for sailing

[kafufle]

sailing is missing a few things that happened in the movies first ship stealing my idea for this is just before a ship sinks occasionally a green circle appears on the mast even though you already have the treasure if a cannoneer hits the circle with a grapple hook they leave the rest of the crew behind along with their share of the plunder on the deck of the sinking ship most enemies are fleeing you kill the remaining enemies and sail it back to a port then you can get the shipwright to fix it you then go to a dinghy select stolen and select your new ship but pirates can sink it because it is stolen and if it sinks the plunder comes from the captains pocket and you can also find enemies on it occasionally but you can get close to npc ships and they dont attack you and you can attack pirates but if it sinks you cant fix it
uses
1. getting better ships
2. disguise
3. fun

my next idea is weather what happens is you see wind blowing stuff about and rain getting things wet but you can also get damaged by weather like when lightning hits your ship it takes damage and whirlpools suck your ship in and if it hits the middle your ship sinks
uses
1. fun
2. making sea battles down to luck as well as skill

tell me what you think of my ideas improve on them and add your own