- Added atom/proc/search_contents_for. Recursively searches through all contents of all atoms inside specified one for matches, returns a list of found atoms.

- Added teleporter datum. do_teleport proc is now just a wrapper for it.
- Added damage absorption to mechs.
- Added mecha step and turn sounds.
- Cleaned effects code a bit.
- Metal foam should now block air movement.
- Since sd_ lightning library chops areas into pieces, turrets now work with master area.
- Tried to optimize DesignHasReqs proc.
- Added plasma converter and laser cannon mecha equipment.
- Other cosmetic changes.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@2463 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/research/research.dm

@@ -77,6 +77,23 @@ research holder datum.
 			else
 				return 0
 
+		//Checks to see if design has all the required pre-reqs.
+		//Input: datum/design; Output: 0/1 (false/true)
+		DesignHasReqs(var/datum/design/D)
+			if(D.req_tech.len == 0)
+				return 1
+			var/matches = 0
+			var/list/k_tech = list()
+			for(var/datum/tech/known in known_tech)
+				k_tech[known.id] = known.level
+			for(var/req in D.req_tech)
+				if(!isnull(k_tech[req]) && k_tech[req] >= D.req_tech[req])
+					matches++
+			if(matches == D.req_tech.len)
+				return 1
+			else
+				return 0
+/*
 		//Checks to see if design has all the required pre-reqs.
 		//Input: datum/design; Output: 0/1 (false/true)
 		DesignHasReqs(var/datum/design/D)
@@ -92,7 +109,7 @@ research holder datum.
 				return 1
 			else
 				return 0
-
+*/
 		//Adds a tech to known_tech list. Checks to make sure there aren't duplicates and updates existing tech's levels if needed.
 		//Input: datum/tech; Output: Null
 		AddTech2Known(var/datum/tech/T)