-Added Zelack's alien infection code. Aliens can now tell if someone is impregnated or not.

-Fixed a bug where a Cyborg could drop their module by clicking it on an operating table.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4561 316c924e-a436-60f5-8080-3fe189b3f50e

code/datums/diseases/alien_embryo.dm

@@ -15,6 +15,18 @@
 		cure(0)
 	return
 
+/datum/disease/alien_embryo/New()
+	..()
+	/* Special Hud for xenos */
+	spawn(0)
+		if (affected_mob)
+			AddInfectionImages(affected_mob)
+
+/datum/disease/alien_embryo/cure(var/resistance=1)
+	..()
+	spawn(0)
+		if (affected_mob)
+			RemoveInfectionImages(affected_mob)
 
 /datum/disease/alien_embryo
 	name = "Unidentified Foreign Body"
@@ -88,3 +100,51 @@
 				gibbed = 1
 				return
 
+/*----------------------------------------
+Proc: RefreshInfectionImage()
+Des: Removes all infection images from aliens and places an infection image on all infected mobs for aliens.
+----------------------------------------*/
+/datum/disease/alien_embryo/proc/RefreshInfectionImage()
+	spawn(0)
+		for (var/mob/living/carbon/alien/alien in world)
+			if (alien.client)
+				for(var/image/I in alien.client.images)
+					if(I.icon_state == "infected")
+						del(I)
+
+		for (var/mob/living/carbon/alien/alien in world)
+			if (alien.client)
+				for (var/mob/living/carbon/C in world)
+					if(C)
+						if (C.status_flags & XENO_HOST)
+							var/I = image('icons/mob/alien.dmi', loc = C, icon_state = "infected")
+							alien.client.images += I
+		return
+
+/*----------------------------------------
+Proc: AddInfectionImages(C)
+Des: Checks if the passed mob (C) is infected with the alien egg, then gives each alien client an infected image at C.
+----------------------------------------*/
+/datum/disease/alien_embryo/proc/AddInfectionImages(var/mob/living/carbon/C)
+	if (C)
+		for (var/mob/living/carbon/alien/alien in world)
+			if (alien.client)
+				if (C.status_flags & XENO_HOST)
+					var/I = image('icons/mob/alien.dmi', loc = C, icon_state = "infected")
+					alien.client.images += I
+	return
+
+/*----------------------------------------
+Proc: RemoveInfectionImage(C)
+Des: Removes the alien infection image from all aliens in the world located in passed mob (C).
+----------------------------------------*/
+
+/datum/disease/alien_embryo/proc/RemoveInfectionImages(var/mob/living/carbon/C)
+	if (C)
+		for (var/mob/living/carbon/alien/alien in world)
+			if (alien.client)
+				for(var/image/I in alien.client.images)
+					if(I.loc == C)
+						if(I.icon_state == "infected")
+							del(I)
+	return

code/game/machinery/OpTable.dm

@@ -108,7 +108,7 @@
 /obj/machinery/optable/process()
 	check_victim()
 
-/obj/machinery/optable/attackby(obj/item/weapon/W as obj, mob/user as mob)
+/obj/machinery/optable/attackby(obj/item/weapon/W as obj, mob/living/carbon/user as mob)
 
 	if (istype(W, /obj/item/weapon/grab))
 		if(ismob(W:affecting))

code/modules/mob/living/carbon/alien/alien.dm

@@ -51,3 +51,29 @@
 		// add some movement delay
 		move_delay_add = min(move_delay_add + round(amount / 2), 10) // a maximum delay of 10
 	return
+
+
+/*----------------------------------------
+Proc: AddInfectionImages()
+Des: Gives the client of the alien an image on each infected mob.
+----------------------------------------*/
+/mob/living/carbon/alien/proc/AddInfectionImages()
+	if (client)
+		for (var/mob/living/carbon/C in world)
+			if(C.status_flags & XENO_HOST)
+				var/I = image('icons/mob/alien.dmi', loc = C, icon_state = "infected")
+				client.images += I
+	return
+
+
+/*----------------------------------------
+Proc: RemoveInfectionImages()
+Des: Removes all infected images from the alien.
+----------------------------------------*/
+/mob/living/carbon/alien/proc/RemoveInfectionImages()
+	if (client)
+		for(var/image/I in client.images)
+			if(I.icon_state == "infected")
+				del(I)
+	return
+

code/modules/mob/living/carbon/alien/login.dm

@@ -0,0 +1,4 @@
+/mob/living/carbon/alien/humanoid/Login()
+	..()
+	AddInfectionImages()
+	return

code/modules/mob/living/carbon/alien/logout.dm

@@ -0,0 +1,4 @@
+/mob/living/carbon/alien/humanoid/Logout()
+	..()
+	RemoveInfectionImages()
+	return

code/modules/mob/living/silicon/silicon.dm

@@ -14,6 +14,9 @@
 /mob/living/silicon/proc/show_laws()
 	return
 
+/mob/living/silicon/drop_item()
+	return
+
 /mob/living/silicon/emp_act(severity)
 	switch(severity)
 		if(1)