Charakterbewegungen hinzugefügt, Deko hinzugefügt, Kochrezepte angepasst

mods/futil/minetest/hud_ephemeral.lua

@@ -0,0 +1,100 @@
+local f = string.format
+
+local current_id = 0
+
+local function get_next_id()
+	current_id = current_id + 1
+	return current_id
+end
+
+local EphemeralHud = futil.class1()
+
+function EphemeralHud:_init(player, hud_def)
+	self._player_name = player:get_player_name()
+	if (hud_def.type or hud_def.hud_elem_type) == "waypoint" then
+		self._id_field = "text2"
+	else
+		self._id_field = "name"
+	end
+	self._id = f("ephemeral_hud:%s:%i", hud_def[self._id_field] or "", get_next_id())
+	hud_def[self._id_field] = self._id
+	self._hud_id = player:hud_add(hud_def)
+end
+
+function EphemeralHud:is_active()
+	if not self._hud_id then
+		return false
+	end
+	local player = minetest.get_player_by_name(self._player_name)
+	if not player then
+		self._hud_id = nil
+		return false
+	end
+	local hud_def = player:hud_get(self._hud_id)
+	if not hud_def then
+		self._hud_id = nil
+		return false
+	end
+	if hud_def[self._id_field] ~= self._id then
+		self._hud_id = nil
+		return false
+	end
+
+	return true
+end
+
+function EphemeralHud:change(new_hud_def)
+	if not self:is_active() then
+		futil.log("warning", "[ephemeral hud] cannot update an inactive hud")
+		return false
+	end
+	local player = minetest.get_player_by_name(self._player_name)
+	local old_hud_def = player:hud_get(self._hud_id)
+	for key, value in pairs(new_hud_def) do
+		if key == "hud_elem_type" then
+			if value ~= (old_hud_def.type or old_hud_def.hud_elem_type) then
+				error("cannot change hud_elem_type")
+			end
+		elseif key == "type" then
+			if value ~= (old_hud_def.type or old_hud_def.hud_elem_type) then
+				error("cannot change type")
+			end
+		elseif key == self._id_field then
+			if value ~= self._id then
+				error(f("cannot change the value of %q, as this is an ID", self._id_field))
+			end
+		else
+			if key == "position" or key == "scale" or key == "align" or key == "offset" then
+				value = futil.vector.v2f_to_float_32(value)
+			end
+
+			if not futil.equals(old_hud_def[key], value) then
+				player:hud_change(self._hud_id, key, value)
+			end
+		end
+	end
+	return true
+end
+
+function EphemeralHud:remove()
+	if not self:is_active() then
+		futil.log("warning", "[ephemeral hud] cannot remove an inactive hud")
+		return false
+	end
+	local player = minetest.get_player_by_name(self._player_name)
+	player:hud_remove(self._hud_id)
+	self._hud_id = nil
+end
+
+futil.EphemeralHud = EphemeralHud
+
+-- note: sometimes HUDs can fail to get created. if so, the HUD object returned here will be "inactive".
+function futil.create_ephemeral_hud(player, timeout, hud_def)
+	local hud = EphemeralHud(player, hud_def)
+	minetest.after(timeout, function()
+		if hud:is_active() then
+			hud:remove()
+		end
+	end)
+	return hud
+end