updates maploader, fixes a few things

code/game/turfs/space/space.dm

@@ -17,6 +17,11 @@
 	light_power = 0.25
 	dynamic_lighting = DYNAMIC_LIGHTING_DISABLED
 
+
+/turf/open/space/basic/New()	//Do not convert to Initialize
+	//This is used to optimize the map loader
+	return
+
 /turf/open/space/Initialize()
 	icon_state = SPACE_ICON_STATE
 	air = space_gas

code/game/turfs/turf.dm

@@ -70,7 +70,7 @@
 	if(force)
 		..()
 		//this will completely wipe turf state
-		var/turf/basic/B = new /turf/basic(src)
+		var/turf/B = new world.turf(src)
 		for(var/A in B.contents)
 			qdel(A)
 		for(var/I in B.vars)
@@ -488,3 +488,17 @@
 	LAZYINITLIST(decals)
 	cut_overlay(decals[group])
 	decals[group] = null
+
+/turf/proc/photograph(limit=20)
+	var/image/I = new()
+	I.overlays += src
+	for(var/V in contents)
+		var/atom/A = V
+		if(A.invisibility)
+			continue
+		I.overlays += A
+		if(limit)
+			limit--
+		else
+			return I
+	return I