Adds Point Defense turrets.

code/game/gamemodes/meteor/meteors.dm

@@ -202,6 +202,21 @@
 		return
 	..()
 
+/obj/effect/meteor/bullet_act(var/obj/item/projectile/Proj)
+	if(Proj.excavation_amount)
+		get_hit()
+		if(!QDELETED(src))
+			wall_power -= Proj.excavation_amount + Proj.damage + (Proj.hitscan * 25)	// Instant-impact projectiles are inherently better at dealing with meteors.
+			wall_power = max(1, wall_power)
+
+			if(wall_power < Proj.excavation_amount)
+				if(prob(min(90, 100 - Proj.damage)))
+					die(TRUE)
+				else
+					die(FALSE)
+				return
+	return
+
 /obj/effect/meteor/proc/make_debris()
 	for(var/throws = dropamt, throws > 0, throws--)
 		var/obj/item/O = new meteordrop(get_turf(src))

code/game/machinery/portable_turret.dm

@@ -73,6 +73,7 @@
 	var/check_anomalies = TRUE	//checks if it can shoot at unidentified lifeforms (ie xenos)
 	var/check_synth	 = FALSE 	//if active, will shoot at anything not an AI or cyborg
 	var/check_all = FALSE		//If active, will fire on anything, including synthetics.
+	var/fire_at_movement = FALSE	// If active, will fire on the most recent thing to move in range, as soon as possible.
 	var/ailock = FALSE 			// AI cannot use this
 	var/check_down = FALSE		//If active, will shoot to kill when lethals are also on
 	var/faction = null			//if set, will not fire at people in the same faction for any reason.
@@ -93,6 +94,8 @@
 	var/timeout = 10		// When a turret pops up, then finds nothing to shoot at, this number decrements until 0, when it pops down.
 	var/can_salvage = TRUE	// If false, salvaging doesn't give you anything.
 
+	var/stay_up = FALSE		// If true, the turret will remain open while it is powered.
+
 /obj/machinery/porta_turret/crescent
 	req_one_access = list(access_cent_specops)
 	enabled = FALSE
@@ -300,6 +303,23 @@
 
 		return 1
 
+/obj/machinery/porta_turret/pointdefense
+	name = "point-defense turret"
+	turret_type = "core"
+
+	installation = /obj/item/weapon/gun/energy/mininglaser
+
+	check_arrest = FALSE
+	check_records = FALSE
+	check_weapons = FALSE
+	check_access = FALSE
+	check_anomalies = FALSE
+	check_synth	 = FALSE
+	check_all = FALSE
+	fire_at_movement = TRUE
+	ailock = FALSE
+	check_down = FALSE
+
 /obj/machinery/porta_turret/Initialize()
 	//Sets up a spark system
 	spark_system = new /datum/effect/effect/system/spark_spread
@@ -346,6 +366,8 @@
 	var/obj/item/projectile/P = initial(E.projectile_type)
 	//var/obj/item/ammo_casing/shottype = E.projectile_type
 
+	GLOB.moved_event.register_global(src, /obj/machinery/porta_turret/proc/point_defense)
+
 	projectile = P
 	lethal_projectile = projectile
 	shot_sound = initial(P.fire_sound)
@@ -401,6 +423,14 @@
 			lethal_shot_sound = 'sound/weapons/eluger.ogg'
 			shot_sound = 'sound/weapons/Taser.ogg'
 
+		if(/obj/item/weapon/gun/energy/mininglaser)
+			lethal_icon_color = "green"
+			lethal_projectile = /obj/item/projectile/beam/mininglaser
+			lethal_shot_sound = 'sound/weapons/eluger.ogg'
+			icon_color = "red"
+			projectile = /obj/item/projectile/beam/weaklaser
+			shot_sound = 'sound/weapons/Laser.ogg'
+
 /obj/machinery/porta_turret/proc/isLocked(mob/user)
 	if(ailock && issilicon(user))
 		to_chat(user, "<span class='notice'>There seems to be a firewall preventing you from accessing this device.</span>")
@@ -442,6 +472,8 @@
 		settings[++settings.len] = list("category" = "Check misc. Lifeforms", "setting" = "check_anomalies", "value" = check_anomalies)
 		settings[++settings.len] = list("category" = "Neutralize All Entities", "setting" = "check_all", "value" = check_all)
 		settings[++settings.len] = list("category" = "Neutralize Downed Entities", "setting" = "check_down", "value" = check_down)
+		settings[++settings.len] = list("category" = "Remain Deployed", "setting" = "stay_up", "value" = stay_up)
+		settings[++settings.len] = list("category" = "Fire At Movement", "setting" = "fire_at_movement", "value" = fire_at_movement)
 		data["settings"] = settings
 
 	ui = SSnanoui.try_update_ui(user, src, ui_key, ui, data, force_open)
@@ -495,6 +527,10 @@
 			check_all = value
 		else if(href_list["command"] == "check_down")
 			check_down = value
+		else if(href_list["command"] == "stay_up")
+			stay_up = value
+		else if(href_list["command"] == "fire_at_movement")
+			fire_at_movement = value
 
 		return 1
 
@@ -698,6 +734,10 @@
 		popDown()
 		return
 
+	if(stay_up)
+		timeout = 10
+		popUp()
+
 	var/list/targets = list()			//list of primary targets
 	var/list/secondarytargets = list()	//targets that are least important
 
@@ -720,7 +760,7 @@
 	if(!tryToShootAt(targets))
 		if(!tryToShootAt(secondarytargets)) // if no valid targets, go for secondary targets
 			timeout--
-			if(timeout <= 0)
+			if(timeout <= 0 && !stay_up)
 				spawn()
 					popDown() // no valid targets, close the cover
 
@@ -728,6 +768,14 @@
 		use_power(20000)
 		health = min(health+1, maxhealth) // 1HP for 20kJ
 
+// We're expecting the first arg to be a target, for this we don't care about previous and next turfs.
+/obj/machinery/porta_turret/proc/point_defense(var/atom/movable/Targ)
+	if((stat & (NOPOWER|BROKEN)) || !fire_at_movement)	// Are we even able or supposed to fire at non-moving targets?
+		return
+
+	if((isliving(Targ) && assess_living(Targ)) || ((istype(Targ, /obj/item) || istype(Targ, /obj/effect/meteor)) && Targ.invisibility < INVISIBILITY_LEVEL_ONE && Targ in view(7,src)))	// Is the target a living thing, if so, is it a valid target? Or if it's not living, is it in sight?
+		target(Targ)	// Yes? Blast it.
+
 /obj/machinery/porta_turret/proc/assess_and_assign(var/mob/living/L, var/list/targets, var/list/secondarytargets)
 	switch(assess_living(L))
 		if(TURRET_PRIORITY_TARGET)
@@ -754,10 +802,10 @@
 	if(L.stat == DEAD && !emagged)		//if the perp is dead, no need to bother really
 		return TURRET_NOT_TARGET	//move onto next potential victim!
 
-	if(get_dist(src, L) > 7)	//if it's too far away, why bother?
+	if(get_dist(src, get_turf(L)) > 7)	//if it's too far away, why bother?
 		return TURRET_NOT_TARGET
 
-	if(!(L in check_trajectory(L, src)))	//check if we have true line of sight
+	if(!(L in check_trajectory(get_turf(L), src)))	//check if we have true line of sight
 		return TURRET_NOT_TARGET
 
 	if(emagged)		// If emagged not even the dead get a rest
@@ -864,8 +912,9 @@
 		last_target = target
 		spawn()
 			popUp()				//pop the turret up if it's not already up.
-		set_dir(get_dir(src, target))	//even if you can't shoot, follow the target
-		playsound(src, 'sound/machines/turrets/turret_rotate.ogg', 100, 1) // Play rotating sound
+		if(dir != get_dir(src, target))
+			set_dir(get_dir(src, target))	//even if you can't shoot, follow the target
+			playsound(src, 'sound/machines/turrets/turret_rotate.ogg', 100, 1) // Play rotating sound
 		spawn()
 			shootAt(target)
 		return 1
@@ -929,6 +978,9 @@
 	var/check_weapons
 	var/check_anomalies
 	var/check_all
+	var/check_down
+	var/fire_at_movement
+	var/stay_up
 	var/ailock
 
 /obj/machinery/porta_turret/proc/setState(var/datum/turret_checks/TC)
@@ -944,6 +996,9 @@
 	check_weapons = TC.check_weapons
 	check_anomalies = TC.check_anomalies
 	check_all = TC.check_all
+	check_down = TC.check_down
+	fire_at_movement = TC.fire_at_movement
+	stay_up = TC.stay_up
 	ailock = TC.ailock
 
 	power_change()

code/game/machinery/turret_control.dm

@@ -25,6 +25,9 @@
 	var/check_anomalies = 1	//checks if it can shoot at unidentified lifeforms (ie xenos)
 	var/check_synth = 0 	//if active, will shoot at anything not an AI or cyborg
 	var/check_all = 0		//If active, will shoot at anything.
+	var/check_down = 0		//If active, will shoot at prone individuals.
+	var/stay_up = 0			//If active, the turret will not pop-down unless it loses power or is disabled.
+	var/fire_at_movement = 0	//If active, the turret will prioritize objects or creatures that move in its range.
 	var/ailock = 0 	//Silicons cannot use this
 
 	req_access = list(access_ai_upload)
@@ -134,6 +137,9 @@
 		settings[++settings.len] = list("category" = "Check Access Authorization", "setting" = "check_access", "value" = check_access)
 		settings[++settings.len] = list("category" = "Check misc. Lifeforms", "setting" = "check_anomalies", "value" = check_anomalies)
 		settings[++settings.len] = list("category" = "Neutralize All Entities", "setting" = "check_all", "value" = check_all)
+		settings[++settings.len] = list("category" = "Neutralize Downed Entities", "setting" = "check_down", "value" = check_down)
+		settings[++settings.len] = list("category" = "Remain Deployed", "setting" = "stay_up", "value" = stay_up)
+		settings[++settings.len] = list("category" = "Fire At Movement", "setting" = "fire_at_movement", "value" = fire_at_movement)
 
 		data["settings"] = settings
 
@@ -168,6 +174,12 @@
 			check_anomalies = value
 		else if(href_list["command"] == "check_all")
 			check_all = value
+		else if(href_list["command"] == "check_down")
+			check_down = value
+		else if(href_list["command"] == "stay_up")
+			stay_up = value
+		else if(href_list["command"] == "fire_at_movement")
+			fire_at_movement = value
 
 		updateTurrets()
 		return 1
@@ -183,6 +195,9 @@
 	TC.check_weapons = check_weapons
 	TC.check_anomalies = check_anomalies
 	TC.check_all = check_all
+	TC.check_down = check_down
+	TC.stay_up = stay_up
+	TC.fire_at_movement = fire_at_movement
 	TC.ailock = ailock
 
 	if(istype(control_area))

code/modules/projectiles/guns/energy/laser.dm

@@ -57,6 +57,28 @@
 	item_state = "lrifle"
 	origin_tech = list(TECH_COMBAT = 4, TECH_MAGNET = 3)
 
+/obj/item/weapon/gun/energy/mininglaser
+	name = "mining-laser rifle"
+	desc = "A Hephaestus Industries G22T rifle, now only produced for its impeccable ability to break stone with its pulsating blasts."
+	description_fluff = "The leading arms producer in the SCG, Hephaestus typically only uses its 'top level' branding for its military-grade equipment used by armed forces across human space."
+	icon = 'icons/obj/gun2.dmi'
+	icon_state = "mininglaser"
+	item_state = "laser"
+	wielded_item_state = "laser-wielded"
+	fire_delay = 8
+	slot_flags = SLOT_BELT|SLOT_BACK
+	w_class = ITEMSIZE_LARGE
+	force = 15
+	origin_tech = list(TECH_COMBAT = 3, TECH_MAGNET = 2)
+	matter = list(DEFAULT_WALL_MATERIAL = 2000)
+	projectile_type = /obj/item/projectile/beam/mininglaser
+	one_handed_penalty = 30
+
+	firemodes = list(
+		list(mode_name="mining", fire_delay=8, projectile_type=/obj/item/projectile/beam/mininglaser, charge_cost = 200),
+		list(mode_name="deter", fire_delay=5, projectile_type=/obj/item/projectile/beam/weaklaser, charge_cost = 80),
+		)
+
 /obj/item/weapon/gun/energy/retro
 	name = "retro laser"
 	icon_state = "retro"

code/modules/projectiles/projectile/beams.dm

@@ -17,6 +17,8 @@
 	hitsound = 'sound/weapons/sear.ogg'
 	hitsound_wall = 'sound/weapons/effects/searwall.ogg'
 
+	excavation_amount = 50
+
 	muzzle_type = /obj/effect/projectile/muzzle/laser
 	tracer_type = /obj/effect/projectile/tracer/laser
 	impact_type = /obj/effect/projectile/impact/laser
@@ -46,6 +48,18 @@
 	damage = 40
 	armor_penetration = 10
 
+/obj/item/projectile/beam/mininglaser
+	name = "pulsating laser"
+	damage = 10
+	armor_penetration = 20
+	fire_sound = 'sound/weapons/eluger.ogg'
+
+	excavation_amount = 100
+
+	muzzle_type = /obj/effect/projectile/muzzle/emitter
+	tracer_type = /obj/effect/projectile/tracer/emitter
+	impact_type = /obj/effect/projectile/impact/emitter
+
 /obj/item/projectile/beam/heavylaser
 	name = "heavy laser"
 	icon_state = "heavylaser"

code/modules/projectiles/projectile/bullets.dm

@@ -10,6 +10,7 @@
 	sharp = 1
 	hitsound_wall = "ricochet"
 	impact_effect_type = /obj/effect/temp_visual/impact_effect
+	excavation_amount  = 20
 	var/mob_passthrough_check = 0
 
 	muzzle_type = /obj/effect/projectile/muzzle/bullet