Basic Shades (#79469)

## About The Pull Request

Makes shades into basic mobs. As they are solely player-controller and
have no AI, this was a very simple conversion.

Things of note:
- I've made shades use the same "theme" system as constructs, to
determine their drops and coloration - as opposed to these things being
manually set by the type of soulstone they're held in.
- I've reorganized files slightly, putting both constructs and shades in
a new "cult" basic mob folder.

That's more or less it. As I said, shades are simple.
## Why It's Good For The Game

Basic-izes another mob and cleans up the code a little. Removes the last
cult-related simplemob, too.
## Changelog
🆑
refactor: Shades now use the basic mob framework. Please report any
bugs.
/🆑

code/modules/mob/living/basic/cult/constructs/_construct.dm

@@ -0,0 +1,133 @@
+/mob/living/basic/construct
+	icon = 'icons/mob/nonhuman-player/cult.dmi'
+	gender = NEUTER
+	basic_mob_flags = DEL_ON_DEATH
+	combat_mode = TRUE
+	mob_biotypes = MOB_MINERAL | MOB_SPECIAL
+	faction = list(FACTION_CULT)
+	unsuitable_atmos_damage = 0
+	minimum_survivable_temperature = 0
+	maximum_survivable_temperature = INFINITY
+	damage_coeff = list(BRUTE = 1, BURN = 1, TOX = 0, CLONE = 0, STAMINA = 0, OXY = 0)
+	pressure_resistance = 100
+	speed = 0
+	unique_name = TRUE
+	initial_language_holder = /datum/language_holder/construct
+	death_message = "collapses in a shattered heap."
+
+	speak_emote = list("hisses")
+	response_help_continuous = "thinks better of touching"
+	response_help_simple = "think better of touching"
+	response_disarm_continuous = "flails at"
+	response_disarm_simple = "flail at"
+	response_harm_continuous = "punches"
+	response_harm_simple = "punch"
+	melee_attack_cooldown = CLICK_CD_MELEE
+
+	// Vivid red, cause cult theme
+	lighting_cutoff_red = 30
+	lighting_cutoff_green = 5
+	lighting_cutoff_blue = 20
+
+	/// List of spells that this construct can cast
+	var/list/construct_spells = list()
+	/// Flavor text shown to players when they spawn as this construct
+	var/playstyle_string = "You are a generic construct. Your job is to not exist, and you should probably adminhelp this."
+	/// The construct's master
+	var/master = null
+	/// Whether this construct is currently seeking nar nar
+	var/seeking = FALSE
+	/// Whether this construct can repair other constructs or cult buildings. Gets the healing_touch component if so.
+	var/can_repair = FALSE
+	/// Whether this construct can repair itself. Works independently of can_repair.
+	var/can_repair_self = FALSE
+	/// Theme controls color. THEME_CULT is red THEME_WIZARD is purple and THEME_HOLY is blue
+	var/theme = THEME_CULT
+	/// Can this construct destroy walls?
+	var/smashes_walls = FALSE
+	/// The different flavors of goop constructs can drop, depending on theme.
+	var/static/list/remains_by_theme = list(
+		THEME_CULT = list(/obj/item/ectoplasm/construct),
+		THEME_HOLY = list(/obj/item/ectoplasm/angelic),
+		THEME_WIZARD = list(/obj/item/ectoplasm/mystic),
+	)
+
+/mob/living/basic/construct/Initialize(mapload)
+	. = ..()
+	AddElement(/datum/element/simple_flying)
+	var/list/remains = string_list(remains_by_theme[theme])
+	if(length(remains))
+		AddElement(/datum/element/death_drops, remains)
+	if(smashes_walls)
+		AddElement(/datum/element/wall_tearer, allow_reinforced = FALSE)
+	if(can_repair)
+		AddComponent(\
+			/datum/component/healing_touch,\
+			heal_brute = 5,\
+			heal_burn = 0,\
+			heal_time = 0,\
+			valid_targets_typecache = typecacheof(list(/mob/living/basic/construct, /mob/living/basic/shade)),\
+			valid_biotypes = MOB_MINERAL | MOB_SPIRIT,\
+			self_targetting = can_repair_self ? HEALING_TOUCH_ANYONE : HEALING_TOUCH_NOT_SELF,\
+			action_text = "%SOURCE% begins repairing %TARGET%'s dents.",\
+			complete_text = "%TARGET%'s dents are repaired.",\
+			show_health = TRUE,\
+			heal_color = COLOR_CULT_RED,\
+		)
+		var/static/list/structure_types = typecacheof(list(/obj/structure/destructible/cult))
+		AddElement(\
+			/datum/element/structure_repair,\
+			structure_types_typecache = structure_types,\
+			)
+	add_traits(list(TRAIT_HEALS_FROM_CULT_PYLONS, TRAIT_SPACEWALK), INNATE_TRAIT)
+	grant_actions_by_list(construct_spells)
+
+	var/spell_count = 1
+	for(var/datum/action/spell as anything in actions)
+		if(!(spell.type in construct_spells))
+			continue
+
+		var/pos = 2 + spell_count * 31
+		if(construct_spells.len >= 4)
+			pos -= 31 * (construct_spells.len - 4)
+		spell.default_button_position = "6:[pos],4:-2" // Set the default position to this random position
+		spell_count++
+		update_action_buttons()
+
+	if(icon_state)
+		add_overlay("glow_[icon_state]_[theme]")
+
+/mob/living/basic/construct/Login()
+	. = ..()
+	if(!. || !client)
+		return FALSE
+	to_chat(src, span_bold(playstyle_string))
+
+/mob/living/basic/construct/examine(mob/user)
+	var/text_span
+	switch(theme)
+		if(THEME_CULT)
+			text_span = "cult"
+		if(THEME_WIZARD)
+			text_span = "purple"
+		if(THEME_HOLY)
+			text_span = "blue"
+	. = list("<span class='[text_span]'>This is [icon2html(src, user)] \a <b>[src]</b>!\n[desc]")
+	if(health < maxHealth)
+		if(health >= maxHealth/2)
+			. += span_warning("[p_They()] look[p_s()] slightly dented.")
+		else
+			. += span_warning(span_bold("[p_They()] look[p_s()] severely dented!"))
+	. += "</span>"
+	return .
+
+/mob/living/basic/construct/narsie_act()
+	return
+
+/mob/living/basic/construct/electrocute_act(shock_damage, source, siemens_coeff = 1, flags = NONE)
+	return FALSE
+
+/// Construct ectoplasm. Largely a placeholder, since the death drop element needs a unique list.
+/obj/item/ectoplasm/construct
+	name = "blood-red ectoplasm"
+	desc = "Has a pungent metallic smell."