Noch mehr mods

mods/hot_air_balloons/absent_ballooner_rescuing.lua

@@ -0,0 +1,101 @@
+--localize things for better performance
+local serialize = minetest.serialize
+local add_entity = minetest.add_entity
+local after = minetest.after
+
+--for storing which players left while in a balloon
+local storage = minetest.get_mod_storage()
+local absent_ballooners = minetest.deserialize(storage:get_string("absent_ballooners")) or {}
+
+
+--putting leaving people into storage
+local leave_while_ballooning = function(player)
+	local parent = player:get_attach()
+	if parent and not parent:is_player()
+	then
+		local balloon_type = parent:get_luaentity().balloon_type
+		if balloon_type
+		then
+			--remove() only works if someone else is in the area,
+			--hence the need for mark_for_deletion
+			parent:remove()
+			absent_ballooners[player:get_player_name()] = balloon_type
+		end
+	end
+end
+
+--same as on_leave but for all players at once
+local on_shutdown = function()
+	local connected_players = minetest.get_connected_players()
+	for i, p in ipairs(connected_players)
+	do
+		leave_while_ballooning(p)
+	end
+	storage:set_string("absent_ballooners", serialize(absent_ballooners))
+end
+--putting leaving people into storage and saving storage
+local on_leave = function(player)
+	leave_while_ballooning(player)
+	storage:set_string("absent_ballooners", serialize(absent_ballooners))
+end
+
+minetest.register_on_leaveplayer(on_leave)
+minetest.register_on_shutdown(on_shutdown)
+
+--checking if player who joined was ballooning when they left
+--if so spawn a new balloon and set them as attachment
+local on_join = function(player)
+	if player
+	then
+		local name = player:get_player_name()
+		if absent_ballooners[name]
+		then
+			local pos = player:get_pos()
+			
+			--for compatibility with version 1.1 of the mod
+			if absent_ballooners[name] == true
+			then
+				absent_ballooners[name] = "hot_air_balloons:balloon"
+			end
+			--minetest doesn't seem to like add_entity on init so a minetest.after is used
+			--player is set as pilot in on_activate
+			after(2,
+				function()
+					--concatenating "P" with name signals that player should be set as attach
+					add_entity(pos, absent_ballooners[name], "P" .. name)
+				end)
+		end
+	end
+end
+minetest.register_on_joinplayer(on_join)
+
+
+--called in on_activate if balloon was spawned to rescue an absent ballooner
+local set_rescue = function(self, playername)
+	local player = minetest.get_player_by_name(playername)
+	self.pilot = playername
+	if not player --player logged off right away
+	then
+		self.object:remove()
+		return
+	end
+	player:set_attach(self.object, "",
+		{x = 0, y = 1, z = 0}, {x = 0, y = 0, z = 0})
+	absent_ballooners[playername] = nil
+end
+--set as get_staticdata
+local mark_for_deletion = function(self)
+	if self.pilot
+	then
+		--pilot logged off while ballooning, deleting balloon on next activation
+		return "R"
+	else
+		--normally save and load balloon
+		return ""
+	end
+end
+
+
+return set_rescue, mark_for_deletion
+
+