AIM: when cannot wear, try to wield

[Brambor]

Summary

Interface "AIM: when cannot wear, try to wield"

Purpose of change

Resolve #73121

Describe the solution

• Hack new destination into AIM: AIM_WIELD.
• It can be accessed only as a destination when the destination is AIM_WEAR and the item cannot be worn but can be wielded.
• Once one item is moved there, AIM_WIELD is not a selected destination anymore. (I believe).

Describe alternatives you've considered

Make it a proper selectable destination. More code, less hacky ( => less bugs?), more things in AIM.

Testing

More testing should be done. Current testing is sufficient.

• I moved things to and from WORN.
• Before I finished, items sometimes disappeared, I only hope it is impossible now. edit: source == dest would probably need to be true for them to disappear (according to .h file)
• in action_move_item squares[destarea] is sometimes accessed. I think it should be undefined behaviour when destarea = AIM_WIELD, but didn't test it. Removed occurrences by refactoring
• bug: having no space to store and wearing a mattress asks to wield the mattress instead then fails with "Destination area is full. Remove some items first." It probably considers the free volume of the inventory. It shouldn't, it should wield the mattress. Fixed.

Additional context

Demonstrating better flow of Wearing / Wielding:

Cataclysm_.Dark.Days.Ahead.-.0.G-8938-geb7c262356-dirty.2024-04-22.10-31-45.mp4

[Brambor]

Looking through the code I see no more undefined behaviour.

Edit: the rest is unrelated and I reported it separately

However, there is a serialization/deserialization problem. I think it is unrelated...

• OS: Windows
  • OS Version: 10.0.19045.4291 (22H2)
• Game Version: 0.G-8939-ge41a476e0a [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  Slowdown Fungal Growth [no_fungal_growth]
  ]

TEST hint good-trimmed.tar.gz

Reproduction steps:

1. Load