introduce changes from streamside fork

data/lib/core/tile.lua

@@ -21,3 +21,45 @@ end
 function Tile.isTile(self)
 	return true
 end
+
+function Tile.relocateTo(self, toPosition, pushMove, monsterPosition)
+	if self:getPosition() == toPosition then
+		return false
+	end
+
+	if not Tile(toPosition) then
+		return false
+	end
+
+	for i = self:getThingCount() - 1, 0, -1 do
+		local thing = self:getThing(i)
+		if thing then
+			if thing:isItem() then
+				if ItemType(thing.itemid):isMovable() then
+					thing:moveTo(toPosition)
+				end
+			elseif thing:isCreature() then
+				if monsterPosition and thing:isMonster() then
+					thing:teleportTo(monsterPosition, pushMove)
+				else
+					thing:teleportTo(toPosition, pushMove)
+				end
+			end
+		end
+	end
+	return true
+end
+
+function Tile:getPlayers()
+	local players = {}
+	local creatures = self:getCreatures()
+	if (creatures) then
+		for i = 1, #creatures do 
+			if (creatures[i]:isPlayer()) then 
+				table.insert(players, creatures[i])
+			end
+		end
+	end
+
+	return players
+end