Basic Mobs: the cooler simple mobs that run on datum AI. (With reworked cockroach AI as proof of concept) (#7867)

Co-authored-by: AMonkeyThatCodes <20987591+AMonkeyThatCodes@users.noreply.github.com>
Co-authored-by: Gandalf <jzo123@hotmail.com>

code/modules/mob/living/basic/basic.dm

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+///Simple animals 2.0, This time, let's really try to keep it simple. This basetype should purely be used as a base-level for implementing simplified behaviours for things such as damage and attacks. Everything else should be in components or AI behaviours.
+/mob/living/basic
+	name = "basic mob"
+	icon = 'icons/mob/animal.dmi'
+	health = 20
+	maxHealth = 20
+	gender = PLURAL
+	living_flags = MOVES_ON_ITS_OWN
+	status_flags = CANPUSH
+
+	var/basic_mob_flags = NONE
+
+	///Defines how fast the basic mob can move. This is a multiplier
+	var/speed = 1
+	///How much stamina the mob recovers per second
+	var/stamina_recovery = 5
+
+	///how much damage this basic mob does to objects, if any.
+	var/obj_damage = 0
+	///How much armour they ignore, as a flat reduction from the targets armour value.
+	var/armour_penetration = 0
+	///Damage type of a simple mob's melee attack, should it do damage.
+	var/melee_damage_type = BRUTE
+	///How much wounding power it has
+	var/wound_bonus = CANT_WOUND
+	///How much bare wounding power it has
+	var/bare_wound_bonus = 0
+	///If the attacks from this are sharp
+	var/sharpness = NONE
+
+	/// Sound played when the critter attacks.
+	var/attack_sound
+	/// Override for the visual attack effect shown on 'do_attack_animation()'.
+	var/attack_vis_effect
+	///Played when someone punches the creature.
+	var/attacked_sound = "punch" //This should be an element
+
+	///What kind of objects this mob can smash.
+	var/environment_smash = ENVIRONMENT_SMASH_NONE
+
+	/// 1 for full damage , 0 for none , -1 for 1:1 heal from that source.
+	var/list/damage_coeff = list(BRUTE = 1, BURN = 1, TOX = 1, CLONE = 1, STAMINA = 0, OXY = 1)
+
+	///Verbs used for speaking e.g. "Says" or "Chitters". This can be elementized
+	var/list/speak_emote = list()
+
+	///When someone interacts with the simple animal.
+	///Help-intent verb in present continuous tense.
+	var/response_help_continuous = "pokes"
+	///Help-intent verb in present simple tense.
+	var/response_help_simple = "poke"
+	///Disarm-intent verb in present continuous tense.
+	var/response_disarm_continuous = "shoves"
+	///Disarm-intent verb in present simple tense.
+	var/response_disarm_simple = "shove"
+	///Harm-intent verb in present continuous tense.
+	var/response_harm_continuous = "hits"
+	///Harm-intent verb in present simple tense.
+	var/response_harm_simple = "hit"
+
+	///Basic mob's own attacks verbs,
+	///Attacking verb in present continuous tense.
+	var/attack_verb_continuous = "attacks"
+	///Attacking verb in present simple tense.
+	var/attack_verb_simple = "attack"
+	///Attacking, but without damage, verb in present continuous tense.
+	var/friendly_verb_continuous = "nuzzles"
+	///Attacking, but without damage, verb in present simple tense.
+	var/friendly_verb_simple = "nuzzle"
+
+	////////THIS SECTION COULD BE ITS OWN ELEMENT
+	///Icon to use
+	var/icon_living = ""
+	///Icon when the animal is dead. Don't use animated icons for this.
+	var/icon_dead = ""
+	///We only try to show a gibbing animation if this exists.
+	var/icon_gib = null
+	///Flip the sprite upside down on death. Mostly here for things lacking custom dead sprites.
+	var/flip_on_death = FALSE
+
+	///If the mob can be spawned with a gold slime core. HOSTILE_SPAWN are spawned with plasma, FRIENDLY_SPAWN are spawned with blood.
+	var/gold_core_spawnable = NO_SPAWN
+	///Sentience type, for slime potions. SHOULD BE AN ELEMENT BUT I DONT CARE ABOUT IT FOR NOW
+	var/sentience_type = SENTIENCE_ORGANIC
+
+
+
+/mob/living/basic/Initialize(mapload)
+	. = ..()
+
+	if(gender == PLURAL)
+		gender = pick(MALE,FEMALE)
+
+	if(!real_name)
+		real_name = name
+
+	if(!loc)
+		stack_trace("Basic mob being instantiated in nullspace")
+
+	update_basic_mob_varspeed()
+
+	if(speak_emote)
+		speak_emote = string_list(speak_emote)
+
+/mob/living/basic/Life(delta_time = SSMOBS_DT, times_fired)
+	. = ..()
+	///Automatic stamina re-gain
+	if(staminaloss > 0)
+		adjustStaminaLoss(-stamina_recovery * delta_time, FALSE, TRUE)
+
+/mob/living/basic/say_mod(input, list/message_mods = list())
+	if(length(speak_emote))
+		verb_say = pick(speak_emote)
+	return ..()
+
+/mob/living/basic/death(gibbed)
+	. = ..()
+	if(basic_mob_flags & DEL_ON_DEATH)
+		qdel(src)
+	else
+		health = 0
+		icon_state = icon_dead
+		if(flip_on_death)
+			transform = transform.Turn(180)
+		set_density(FALSE)
+
+/mob/living/basic/proc/melee_attack(atom/target)
+	src.face_atom(target)
+	if(SEND_SIGNAL(src, COMSIG_HOSTILE_PRE_ATTACKINGTARGET, target) & COMPONENT_HOSTILE_NO_ATTACK)
+		return FALSE //but more importantly return before attack_animal called
+	var/result = target.attack_basic_mob(src)
+	SEND_SIGNAL(src, COMSIG_HOSTILE_POST_ATTACKINGTARGET, target, result)
+	return result
+
+/mob/living/basic/proc/set_varspeed(var_value)
+	speed = var_value
+	update_basic_mob_varspeed()
+
+/mob/living/basic/proc/update_basic_mob_varspeed()
+	if(speed == 0)
+		remove_movespeed_modifier(/datum/movespeed_modifier/simplemob_varspeed)
+	add_or_update_variable_movespeed_modifier(/datum/movespeed_modifier/simplemob_varspeed, multiplicative_slowdown = speed)
+	SEND_SIGNAL(src, POST_BASIC_MOB_UPDATE_VARSPEED)
+