Fixes issues with raider equipping

Fixes raiders not being able to ever spawn with guns that cannot be equipped to the belt, despite those gun types being in the raider_guns list.
Fixes raiders spawning with guns for which they have no ammo.
Fixes taj/unathi raiders having a 2/3 chance of spawning without any shoes.

code/game/antagonist/outsider/raider.dm

@@ -26,7 +26,8 @@ var/datum/antagonist/raider/raiders
 
 	var/list/raider_shoes = list(
 		/obj/item/clothing/shoes/jackboots,
-		/obj/item/clothing/shoes/sandal,
+		/obj/item/clothing/shoes/workboots,
+		/obj/item/clothing/shoes/brown,
 		/obj/item/clothing/shoes/laceup
 		)
 
@@ -42,7 +43,6 @@ var/datum/antagonist/raider/raiders
 		/obj/item/clothing/head/pirate,
 		/obj/item/clothing/head/bandana,
 		/obj/item/clothing/head/hgpiratecap,
-		/obj/item/clothing/head/flatcap
 		)
 
 	var/list/raider_suits = list(
@@ -87,6 +87,12 @@ var/datum/antagonist/raider/raiders
 		/obj/item/weapon/gun/projectile/pirate
 		)
 	
+	var/list/raider_holster = list(
+		/obj/item/clothing/accessory/holster/armpit,
+		/obj/item/clothing/accessory/holster/waist,
+		/obj/item/clothing/accessory/holster/hip
+		)
+
 /datum/antagonist/raider/New()
 	..()
 	raiders = src
@@ -195,14 +201,18 @@ var/datum/antagonist/raider/raiders
 		var/new_glasses = pick(raider_glasses)
 		var/new_helmet =  pick(raider_helmets)
 		var/new_suit =    pick(raider_suits)
-		var/new_gun =     pick(raider_guns)
 
 		player.equip_to_slot_or_del(new new_shoes(player),slot_shoes)
+		if(!player.shoes)
+			//If equipping shoes failed, fall back to equipping sandals
+			var/fallback_type = pick(/obj/item/clothing/shoes/sandal, /obj/item/clothing/shoes/jackboots/unathi)
+			player.equip_to_slot_or_del(new fallback_type(player), slot_shoes)
+		
 		player.equip_to_slot_or_del(new new_uniform(player),slot_w_uniform)
 		player.equip_to_slot_or_del(new new_glasses(player),slot_glasses)
 		player.equip_to_slot_or_del(new new_helmet(player),slot_head)
 		player.equip_to_slot_or_del(new new_suit(player),slot_wear_suit)
-		player.equip_to_slot_or_del(new new_gun(player),slot_belt)
+		equip_weapons(player)
 
 	var/obj/item/weapon/card/id/id = create_id("Visitor", player)
 	id.name = "[player.real_name]'s Passport"
@@ -215,6 +225,70 @@ var/datum/antagonist/raider/raiders
 
 	return 1
 
+/datum/antagonist/raider/proc/equip_weapons(var/mob/living/carbon/human/player)
+	var/new_gun = pick(raider_guns)
+	var/new_holster = pick(raider_holster) //raiders don't start with any backpacks, so let's be nice and give them a holster if they can use it.
+	var/turf/T = get_turf(player)
+	
+	var/obj/item/primary = new new_gun(T)
+	var/obj/item/clothing/accessory/holster/holster = null
+	
+	//Give some of the raiders a pirate gun as a secondary
+	if(prob(60))
+		var/obj/item/secondary = new /obj/item/weapon/gun/projectile/pirate(T)
+		if(!(primary.slot_flags & SLOT_HOLSTER))
+			holster = new new_holster(T)
+			holster.holstered = secondary
+			secondary.loc = holster
+		else
+			player.equip_to_slot_or_del(secondary, slot_belt)
+	
+	if(primary.slot_flags & SLOT_HOLSTER)
+		holster = new new_holster(T)
+		holster.holstered = primary
+		primary.loc = holster
+	else if(!player.belt && (primary.slot_flags & SLOT_BELT))
+		player.equip_to_slot_or_del(primary, slot_belt)
+	else if(!player.back && (primary.slot_flags & SLOT_BACK))
+		player.equip_to_slot_or_del(primary, slot_back)
+	else
+		player.put_in_any_hand_if_possible(primary)
+	
+	//If they got a projectile gun, give them a little bit of spare ammo
+	equip_ammo(player, primary)
+	
+	if(holster)
+		var/obj/item/clothing/under/uniform = player.w_uniform
+		if(istype(uniform) && uniform.can_attach_accessory(holster))
+			uniform.attackby(holster, player)
+		else
+			player.put_in_any_hand_if_possible(holster)
+
+/datum/antagonist/raider/proc/equip_ammo(var/mob/living/carbon/human/player, var/obj/item/weapon/gun/gun)
+	if(istype(gun, /obj/item/weapon/gun/projectile))
+		var/obj/item/weapon/gun/projectile/bullet_thrower = gun
+		if(bullet_thrower.magazine_type)
+			player.equip_to_slot_or_del(new bullet_thrower.magazine_type(player), slot_l_store)
+			if(prob(20)) //don't want to give them too much
+				player.equip_to_slot_or_del(new bullet_thrower.magazine_type(player), slot_r_store)
+		else if(bullet_thrower.ammo_type)
+			var/obj/item/weapon/storage/box/ammobox = new(get_turf(player.loc))
+			for(var/i in 1 to rand(3,5) + rand(0,2))
+				new bullet_thrower.ammo_type(ammobox)
+			player.put_in_any_hand_if_possible(ammobox)
+		return
+	if(istype(gun, /obj/item/weapon/gun/launcher/grenade))
+		var/list/grenades = list(
+			/obj/item/weapon/grenade/empgrenade,
+			/obj/item/weapon/grenade/smokebomb,
+			/obj/item/weapon/grenade/flashbang
+			)
+		var/obj/item/weapon/storage/box/ammobox = new(get_turf(player.loc))
+		for(var/i in 1 to 7)
+			var/grenade_type = pick(grenades)
+			new grenade_type(ammobox)
+		player.put_in_any_hand_if_possible(ammobox)
+
 /datum/antagonist/raider/proc/equip_vox(var/mob/living/carbon/human/player)
 
 	var/uniform_type = pick(list(/obj/item/clothing/under/vox/vox_robes,/obj/item/clothing/under/vox/vox_casual))

code/modules/customitems/item_spawning.dm

@@ -174,16 +174,8 @@
 	if(M.equip_to_appropriate_slot(newitem))
 		return newitem
 
-	if(istype(M.back,/obj/item/weapon/storage))
-		var/obj/item/weapon/storage/backpack = M.back
-		if(backpack.contents.len < backpack.storage_slots)
-			newitem.loc = M.back
-			return newitem
+	if(M.equip_to_storage(newitem))
+		return newitem
 
-	// Try to place it in any item that can store stuff, on the mob.
-	for(var/obj/item/weapon/storage/S in M.contents)
-		if (S.contents.len < S.storage_slots)
-			newitem.loc = S
-			return newitem
 	newitem.loc = get_turf(M.loc)
 	return newitem

code/modules/mob/inventory.dm

@@ -73,6 +73,21 @@ var/list/slot_equipment_priority = list( \
 
 	return 0
 
+/mob/proc/equip_to_storage(obj/item/newitem)
+	// Try put it in their backpack
+	if(istype(src.back,/obj/item/weapon/storage))
+		var/obj/item/weapon/storage/backpack = src.back
+		if(backpack.contents.len < backpack.storage_slots)
+			newitem.loc = src.back
+			return 1
+
+	// Try to place it in any item that can store stuff, on the mob.
+	for(var/obj/item/weapon/storage/S in src.contents)
+		if (S.contents.len < S.storage_slots)
+			newitem.loc = S
+			return 1
+	return 0
+
 //These procs handle putting s tuff in your hand. It's probably best to use these rather than setting l_hand = ...etc
 //as they handle all relevant stuff like adding it to the player's screen and updating their overlays.