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

@@ -50,4 +50,30 @@
 	else
 		// add some movement delay
 		move_delay_add = min(move_delay_add + round(amount / 2), 10) // a maximum delay of 10
-	return
+	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)