misc

world.lua

@@ -8,6 +8,7 @@ function World:initialize()
 	self.rooms = {}
 	self.roomByName = {}
 	self.previewCache = {}
+	self.lastRoom = nil
 	self:load()
 end
 
@@ -26,6 +27,7 @@ function World:load()
 	if not raw then return end
 	local ok, save = pcall(TSerial.unpack, raw)
 	if not ok or type(save) ~= "table" then return end
+	self.lastRoom = save.lastRoom
 	for _, room in ipairs(save.rooms or {}) do
 		if room.name and self:isInBounds(room.x, room.y) then
 			self:_putRoom(room.name, room.x, room.y)
@@ -38,7 +40,7 @@ function World:save()
 	for _, room in ipairs(self.rooms) do
 		table.insert(rooms, { name = room.name, x = room.x, y = room.y })
 	end
-	return writeToSource("rooms/world.sav", TSerial.pack({ width = self.width, height = self.height, rooms = rooms }, nil, true))
+	return writeToSource("rooms/world.sav", TSerial.pack({ width = self.width, height = self.height, lastRoom = self.lastRoom, rooms = rooms }, nil, true))
 end
 
 function World:isInBounds(x, y)
@@ -87,6 +89,7 @@ function World:removeRoom(x, y)
 		if room.x == x and room.y == y then
 			self.roomByName[room.name] = nil
 			table.remove(self.rooms, i)
+			if self.lastRoom == room.name then self.lastRoom = nil end
 			return self:save(), room.name
 		end
 	end
@@ -99,11 +102,20 @@ function World:renameRoom(oldName, newName)
 	self.roomByName[oldName] = nil
 	room.name = newName
 	self.roomByName[newName] = room
+	if self.lastRoom == oldName then self.lastRoom = newName end
 	self:invalidatePreview(oldName)
 	self:invalidatePreview(newName)
 	return self:save()
 end
 
+function World:setLastRoom(name)
+	if name and self.lastRoom ~= name then
+		self.lastRoom = name
+		return self:save()
+	end
+	return true
+end
+
 function World:getNeighbor(name, exit)
 	local room = self:roomLocation(name)
 	if not room then return nil end
@@ -149,7 +161,12 @@ function World:drawRoomPreview(name, x, y, size)
 		else
 			local props = globalAssetProperties[object.class]
 			if props and props.sprites then
-				local colors = object.class == "door" and { "red", "green", "blue" } or { object.color }
+				local colors
+				if object.class == "door" then
+					colors = object.color and { object.color } or { "red", "green", "blue" }
+				else
+					colors = { object.color }
+				end
 				for _, color in ipairs(colors) do
 					local path = props.sprites[color]
 					if path then