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Show waypoint when holding a compass

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whosit 2021-05-14 23:40:37 +03:00
parent e793c26f64
commit dc151342fd
1 changed files with 88 additions and 36 deletions
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124
init.lua
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@ -1,47 +1,99 @@
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",
-- Display HUD waypoint on use
on_use = function(itemstack, user, pointed_thing)
if not itemstack then
return nil
end
local meta = itemstack:get_meta()
local waypoint_id = meta:get_string("waypoint_compass:id")
-- FIXME test code for checking how setting the description works
if user and user:is_player() then
local player = user
local player_name = player:get_player_name()
if (player_waypoints[player_name] and
player_waypoints[player_name][waypoint_id]) then
-- Waypoint is currently displayed, remove it
local hud_id = player_waypoints[player_name][waypoint_id]
print("hud_id remove", hud_id)
player_waypoints[player_name][waypoint_id] = nil
player:hud_remove(hud_id)
else
-- Show this waypoint
local waypoint_name = meta:get_string("waypoint_compass:name") ~= "" or "destination"
local hud_id = player:hud_add({
hud_elem_type = "waypoint",
name = waypoint_name,
text = "m",
precision=1,
number = 0xFF, --0xFFFFFF,
world_pos = {x=0, y=0, z=0},
})
-- 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][waypoint_id] = hud_id
end
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
return nil
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)