// BLATANTLY ripped from the facehugger.dm alien code. -- TLE

#define viewrange 7 //min 2

// Returns the surrounding cardinal turfs with open links
// Including through doors openable with the ID
// Includes spacetiles
/*


/obj/creature
	name = "creature"
	desc = "A sanity-destroying otherthing."
	icon = 'otherthing.dmi'
	icon_state = "otherthing"
	layer = 5.0
	density = 1
	anchored = 0
	unacidable = 1 //Creature is not harmed by acid.

	var/state = 0

	var/list/path = new/list()

	var/frustration = 0
	var/mob/living/carbon/target
	var/list/path_target = new/list()

	var/turf/trg_idle
	var/list/path_idle = new/list()

	var/alive = 1 //1 alive, 0 dead
	var/health = 25
	var/maxhealth = 25
	var/cycle_pause = 5

	flags = 258.0





	New()
		..()
		health = maxhealth
		src.process()

	examine()
		set src in view()
		..()
		if(!alive)
			usr << text("\red <B>the thing isn't moving</B>")
		else if (src.health > 15)
			usr << text("\red <B>A sanity-destroying otherthing.</B>")
		else
			usr << text("\red <B>the thing looks hurt</B>")
		return


	attack_hand(user as mob)
		return

	attackby(obj/item/weapon/W as obj, mob/user as mob)
		switch(W.damtype)
			if("fire")
				src.health -= W.force * 2
			if("brute")
				src.health -= W.force * 1
			else
		if (src.health <= 0)
			src.death()
		else if (W.force)
			if(ishuman(user) || ismonkey(user))
				src.target = user
				src.state = 1
		..()

	bullet_act(var/obj/item/projectile/Proj)
		health -= round(Proj.damage / 2)
		healthcheck()

	ex_act(severity)
		switch(severity)
			if(1.0)
				src.death()
			if(2.0)
				src.health -= 15
				healthcheck()
		return

	meteorhit()
		src.death()
		return

	blob_act()
		if(prob(50))
			src.death()
		return

	Bumped(AM as mob|obj)
		if(ismob(AM) && (ishuman(AM) || ismonkey(AM)) )
			src.target = AM
			set_attack()
		else if(ismob(AM))
			spawn(0)
				var/turf/T = get_turf(src)
				AM:loc = T

	Bump(atom/A)
		if(ismob(A) && (ishuman(A) || ismonkey(A)))
			src.target = A
			set_attack()
		else if(ismob(A))
			src.loc = A:loc

	temperature_expose(datum/gas_mixture/air, exposed_temperature, exposed_volume)
		if(exposed_temperature > 200)
			health -= 5
			healthcheck()



	proc/set_attack()
		state = 1
		if(path_idle.len) path_idle = new/list()
		trg_idle = null

	proc/set_idle()
		state = 2
		if (path_target.len) path_target = new/list()
		target = null
		frustration = 0

	proc/set_null()
		state = 0
		if (path_target.len) path_target = new/list()
		if (path_idle.len) path_idle = new/list()
		target = null
		trg_idle = null
		frustration = 0

	proc/process()
		set background = 1
		var/quick_move = 0

		if (!alive)
			return

		if (!target)
			if (path_target.len) path_target = new/list()

			var/last_health = INFINITY

			for (var/mob/living/carbon/C in range(viewrange-2,src.loc))
				if (C.stat == 2 || !can_see(src,C,viewrange))
					continue
				if(C:stunned || C:paralysis || C:weakened)
					target = C
					break
				if(C:health < last_health)
					last_health = C:health
					target = C

			if(target)
				set_attack()
			else if(state != 2)
				set_idle()
				idle()

		else if(target)
			var/turf/distance = get_dist(src, target)
			set_attack()

			if(can_see(src,target,viewrange))
				if(distance <= 1)
					for(var/mob/O in viewers(world.view,src))
						O.show_message("\red <B>[src.target] has been attacked by [src]!</B>", 1, "\red You hear the sounds of combat", 2)
					target:bruteloss += rand(1,10)
					sleep(5)
					//target:paralysis = max(target:paralysis, 10)

				else
					step_towards(src,get_step_towards2(src , target))
					set_null()
					spawn(cycle_pause) src.process()
					return

			else
				if( !path_target.len )

					path_attack(target)
					if(!path_target.len)
						set_null()
						spawn(cycle_pause) src.process()
						return
				else
					var/turf/next = path_target[1]

					if(next in range(1,src))
						path_attack(target)

					if(!path_target.len)
						src.frustration += 5
					else
						next = path_target[1]
						path_target -= next
						step_towards(src,next)
						quick_move = 1

			if (get_dist(src, src.target) >= distance) src.frustration++
			else src.frustration--
			if(frustration >= 35) set_null()

		if(quick_move)
			spawn(cycle_pause/2)
				src.process()
		else
			spawn(cycle_pause)
				src.process()

	proc/idle()
		set background = 1
		var/quick_move = 0

		if(state != 2 || !alive || target) return

		if(!path_idle.len)
			path_idle(trg_idle)
			if(!path_idle.len)
				trg_idle = null
				set_idle()
				spawn(cycle_pause) src.idle()
				return
			else
				step(src,pick(cardinal))

		else

			if(can_see(src,trg_idle,viewrange))
				switch(get_dist(src, trg_idle))
					if(1)
						if(istype(trg_idle,/obj/alien/weeds))
							step_towards(src,get_step_towards2(src , trg_idle))
					if(2 to INFINITY)
						step_towards(src,get_step_towards2(src , trg_idle))
						if(path_idle.len) path_idle = new/list()
					/*
					if(viewrange+1 to INFINITY)
						step_towards(src,get_step_towards2(src , trg_idle))
						if(path_idle.len) path_idle = new/list()
						quick_move = 1
					*/
			else
				var/turf/next = path_idle[1]
				if(!next in range(1,src))
					path_idle(trg_idle)

				if(!path_idle.len)
					spawn(cycle_pause) src.idle()
					return
				else
					next = path_idle[1]
					path_idle -= next
					step_towards(src,next)
					quick_move = 1

		if(quick_move)
			spawn(cycle_pause/2)
				idle()
		else
			spawn(cycle_pause)
				idle()

	proc/path_idle(var/atom/trg)
		path_idle = AStar(src.loc, get_turf(trg), /turf/proc/CardinalTurfsWithAccess, /turf/proc/Distance, 0, 250, null, null)
		path_idle = reverselist(path_idle)

	proc/path_attack(var/atom/trg)
		target = trg
		path_target = AStar(src.loc, target.loc, /turf/proc/CardinalTurfsWithAccess, /turf/proc/Distance, 0, 250, null, null)
		path_target = reverselist(path_target)


	proc/death()
		if(!alive) return
		src.alive = 0
		density = 0
		icon_state = "dead"
		set_null()
		for(var/mob/O in hearers(src, null))
			O.show_message("\red <B>[src] falls over dead!</B>", 1)

	proc/healthcheck()
		if (src.health <= 0)
			src.death()

*/