100 lines
4.0 KiB
Lua
100 lines
4.0 KiB
Lua
local player_waypoints = {}
|
|
local update_interval = 1.31415
|
|
|
|
-- lua metatables? what is that? :P
|
|
local function get_compass_meta_id(meta)
|
|
return meta:get_string("waypoint_compass:id") ~= "" or "default_id"
|
|
end
|
|
|
|
|
|
local function get_compass_meta_name(meta)
|
|
return meta:get_string("waypoint_compass:name") ~= "" or "destination"
|
|
end
|
|
|
|
local function get_compass_meta_pos(meta)
|
|
return {x=0, y=0, z=0}
|
|
end
|
|
|
|
|
|
minetest.register_tool("waypoint_compass:compass", {
|
|
description = "Waypoint compass",
|
|
short_description = "Steel Axe",
|
|
inventory_image = "Waypoint_compass_inventory_image.png",
|
|
on_use = function(itemstack, user, pointed_thing)
|
|
-- FIXME test code for checking how setting the description works
|
|
if user and user:is_player() then
|
|
local player = user
|
|
local meta = itemstack:get_meta()
|
|
local pos = get_compass_meta_pos(meta)
|
|
local new_description = string.format("%f (%f,%f,%f)", math.random(), pos.x, pos.y, pos.z)
|
|
meta:set_string("description", new_description)
|
|
meta:set_string("short_description", new_description)
|
|
print("on use", new_description)
|
|
--player:set_wielded_item(nil)
|
|
--player:set_wielded_item(itemstack)
|
|
return itemstack
|
|
end
|
|
end
|
|
})
|
|
|
|
|
|
local function remove_hud_waypoint(player, player_name)
|
|
print("hud remove")
|
|
local hud_id = player_waypoints[player_name].hud_id
|
|
player_waypoints[player_name] = nil
|
|
player:hud_remove(hud_id)
|
|
end
|
|
|
|
local function show_hud_waypoint(player, compass_item_meta)
|
|
local player_name = player:get_player_name()
|
|
-- Show this waypoint
|
|
local waypoint_name = get_compass_meta_name(compass_item_meta)
|
|
local hud_id = player:hud_add({
|
|
hud_elem_type = "waypoint",
|
|
name = waypoint_name,
|
|
text = "m",
|
|
precision=1,
|
|
number = 0xFF, --0xFFFFFF,
|
|
world_pos = get_compass_meta_pos(compass_item_meta),
|
|
})
|
|
-- store HUD elemnt id to remove it later
|
|
if not player_waypoints[player_name] then
|
|
player_waypoints[player_name] = {}
|
|
end
|
|
print("hud_id add", hud_id)
|
|
player_waypoints[player_name].id = get_compass_meta_id(compass_item_meta)
|
|
player_waypoints[player_name].hud_id = hud_id
|
|
print("id set", player_waypoints[player_name].id)
|
|
end
|
|
|
|
|
|
local timer = 0
|
|
minetest.register_globalstep(function(dtime)
|
|
timer = timer + dtime
|
|
if timer > update_interval then
|
|
for _,player in pairs(minetest.get_connected_players()) do
|
|
local player_name = player:get_player_name()
|
|
local item = player:get_wielded_item()
|
|
-- player is holding compass
|
|
if (item and item:get_name() == "waypoint_compass:compass") then
|
|
local meta = item:get_meta()
|
|
local waypoint_id = get_compass_meta_id(meta)
|
|
-- remove different waypoint if it exists
|
|
print(player_waypoints[player_name] and player_waypoints[player_name].id)
|
|
if player_waypoints[player_name] and (player_waypoints[player_name].id ~= waypoint_id) then
|
|
remove_hud_waypoint(player, player_name)
|
|
end
|
|
-- show new waypoint
|
|
if not player_waypoints[player_name] then
|
|
show_hud_waypoint(player, meta)
|
|
end
|
|
else
|
|
if player_waypoints[player_name] then
|
|
remove_hud_waypoint(player, player_name)
|
|
end
|
|
end
|
|
end
|
|
timer = 0
|
|
end
|
|
end)
|