[WIP] Adds ability for weather to spawn monsters, and a new weather type, Mist, which uses it.

[Ramza13]

Summary

SUMMARY: Content "Adds ability for weather to spawn monsters, and a new weather type, Mist, which uses it."

Purpose of change

Add more content. Got inspired to try something other than damage as a player challenge.

Describe the solution

Add new json configurable option to have weather spawn monsters.
Mist will occur after a random number of days based on json, overriding the current weather.
Mist makes it harder to see and as long as you are outdoors will spawn various enemies based on its intensity, which increases over time.
Every time the mist appears its starting and ending intensity are a little higher and on average it lasts longer and comes sooner.

All of the spawned enemies have 1 hp and are killed after attacking. They do no damage but give you negative effects.
Some are hallucination copies of nearby real enemies.
Some drain your stamina and fatigue.
Some make you scream and lower morale.
And the worst of all steal your substance and briefly make you invincible. For the minor cost of dealing no damage and your items keeping their substance and subsequently falling to the ground.

Also added a bunch of snippets all over to add some atmosphere.

Also created an enemy which summons the mist upon death. At present it does not spawn out of debug but is more a proof of concept for future PRs.

Describe alternatives you've considered

Testing

Additional context

[Night-Pryanik]

I like the idea, however I'm not sure how they fit our lore.
Also I'd prefer option turned on on default.

[kevingranade]

I'm not seeing the reason for the option, we've long ago moved away from gating content on options, we use mods for that instead.

[ymber]

Option is the wrong way to go here. The relevant systems should be jsonized so this can go in a mod.

[Fris0uman]

The relevant systems should be jsonized so this can go in a mod.

This, 100% this! ^^^

A jsonized system to spawn monster through weather sounds great!
(Flavour wise this mist might fit Magiclysm better)

[Ramza13]

The idea with making it an option was to initially gate it and then toy with balance until removing the option sorta like random npc spawns and hordes. That said I considered using json and will use that instead, hadn't thought of allowing other weather similar effects.

I didn't make this magiclysm partially because I've never played it but also because this is inspired by Stephen King's The Mist which isn't fantasy and in which the military tampers with something and unleashes the mist and that seemed like a perfect fit for regular cataclysm.
Thanks for the feedback!

[Ramza13]

Moved all mist options and ability to spawn monsters based on weather into json, in regional_map_settings.json in the weather element. Mist is now on in default json. Updated docs to reflect this.

[ymber]

I think this is inappropriate content for core and it hardcodes too much when we're trying to split content from engine functionality. The groundwork for jsonizing weather should be done first.

[ymber]

This should be generalized to an array of localized weather objects with jsonized properties and effects.

[ymber]

Duration should be randomized between a [ min, max ] pair rather than fixed randomization around a value.

[ymber]

Spawns should be part of the weather objects.

[I-am-Erk]

Suggested change

	"In an instant a thick mist descends upon the world, far too fast to be natural. Or are you finally losing it?."
	"In an instant a thick mist descends upon the world, far too fast to be natural."

I think the 'losing it' bit inserts too much of the character's thoughts

[I-am-Erk]

Consider importing other snippets here, to make the mist more confusing. eg.

"<im_leaving_you>",
"<ill_kill_you>",
"<ill_die>",
"<wait>",
"<drop_it>",
"<hands_up>",
"<fuck_you>",
"<general_danger_h>",
"<kill_npc>",
"<kill_npc_h>",
"<speech_warning>"

This is a batch of generally concerning-sounding snippets that NPCs say, and if the mist often sounds like NPCs it will be really disorienting.

[stale]

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