advmarkers-csm/init.lua

501 lines
16 KiB
Lua

--
-- Minetest advmarkers CSM
--
-- Copyright © 2019-2020 by luk3yx
--
advmarkers = {}
-- Get the mod storage
local storage = minetest.get_mod_storage()
-- Convert positions to/from strings
local abs, type = math.abs, type
local function pos_to_string(pos)
if type(pos) == 'table' then
pos = minetest.pos_to_string(vector.round(pos))
end
if type(pos) == 'string' then
return pos
end
end
local function dir_ok(n)
return type(n) == 'number' and abs(n) < 31000
end
local function string_to_pos(pos)
if type(pos) == 'string' then
pos = minetest.string_to_pos(pos)
end
if type(pos) == 'table' and dir_ok(pos.x) and dir_ok(pos.y) and
dir_ok(pos.z) then
return vector.round(pos)
end
end
-- Set the HUD position
local hud_id
function advmarkers.set_hud_pos(pos, title)
pos = string_to_pos(pos)
if not pos then return end
-- Fall back to /mrkr if hud_add doesn't exist (Minetest 0.4).
if not minetest.localplayer or not minetest.localplayer.hud_add or
not minetest.localplayer.hud_change then
minetest.run_server_chatcommand('mrkr', tostring(pos.x) .. ' ' ..
tostring(pos.y) .. ' ' .. tostring(pos.z))
return
end
if not title then
title = pos.x .. ', ' .. pos.y .. ', ' .. pos.z
end
if hud_id then
minetest.localplayer:hud_change(hud_id, 'name', title)
minetest.localplayer:hud_change(hud_id, 'world_pos', pos)
else
hud_id = minetest.localplayer:hud_add({
hud_elem_type = 'waypoint',
name = title,
text = 'm',
number = 0x00ffff,
world_pos = pos
})
end
minetest.display_chat_message('Waypoint set to ' ..
minetest.colorize('#00ffff', title))
return true
end
-- Add a waypoint
function advmarkers.set_waypoint(pos, name)
pos = pos_to_string(pos)
if not pos then return end
storage:set_string('marker-' .. tostring(name), pos)
return true
end
advmarkers.set_marker = advmarkers.set_waypoint
-- Delete a waypoint
function advmarkers.delete_waypoint(name)
storage:set_string('marker-' .. tostring(name), '')
end
advmarkers.delete_marker = advmarkers.delete_waypoint
-- Get a waypoint
function advmarkers.get_waypoint(name)
return string_to_pos(storage:get_string('marker-' .. tostring(name)))
end
advmarkers.get_marker = advmarkers.get_waypoint
-- Rename a waypoint and re-interpret the position.
function advmarkers.rename_waypoint(oldname, newname)
oldname, newname = tostring(oldname), tostring(newname)
local pos = advmarkers.get_waypoint(oldname)
if not pos or not advmarkers.set_waypoint(pos, newname) then return end
if oldname ~= newname then
advmarkers.delete_waypoint(oldname)
end
return true
end
advmarkers.rename_marker = advmarkers.rename_waypoint
-- Display a waypoint
function advmarkers.display_waypoint(name)
return advmarkers.set_hud_pos(advmarkers.get_waypoint(name), name)
end
advmarkers.display_marker = advmarkers.display_waypoint
-- Export waypoints
function advmarkers.export(raw)
local s = storage:to_table().fields
if raw == 'M' then
s = minetest.compress(minetest.serialize(s))
s = 'M' .. minetest.encode_base64(s)
elseif not raw then
s = minetest.compress(minetest.write_json(s))
s = 'J' .. minetest.encode_base64(s)
end
return s
end
-- Import waypoints
function advmarkers.import(s)
if type(s) ~= 'table' then
local ver = s:sub(1, 1)
if ver ~= 'M' and ver ~= 'J' then return end
s = minetest.decode_base64(s:sub(2))
local success, msg = pcall(minetest.decompress, s)
if not success then return end
if ver == 'M' then
s = minetest.deserialize(msg, true)
else
s = minetest.parse_json(msg)
end
end
-- Iterate over waypoints to preserve existing ones and check for errors.
if type(s) == 'table' then
for name, pos in pairs(s) do
if type(name) == 'string' and type(pos) == 'string' and
name:sub(1, 7) == 'marker-' and minetest.string_to_pos(pos) and
storage:get_string(name) ~= pos then
-- Prevent collisions
local c = 0
while #storage:get_string(name) > 0 and c < 50 do
name = name .. '_'
c = c + 1
end
-- Sanity check
if c < 50 then
storage:set_string(name, pos)
end
end
end
return true
end
end
-- Get the waypoints formspec
local formspec_list = {}
local selected_name = false
function advmarkers.display_formspec()
local formspec = 'size[5.25,8]' ..
'label[0,0;Waypoint list]' ..
'button_exit[0,7.5;1.3125,0.5;display;Display]' ..
'button[1.3125,7.5;1.3125,0.5;teleport;Teleport]' ..
'button[2.625,7.5;1.3125,0.5;rename;Rename]' ..
'button[3.9375,7.5;1.3125,0.5;delete;Delete]' ..
'textlist[0,0.75;5,6;marker;'
-- Iterate over all the waypoints
local selected = 1
formspec_list = {}
local waypoints = {}
for name, _ in pairs(storage:to_table().fields) do
if name:sub(1, 7) == 'marker-' then
table.insert(waypoints, name:sub(8))
end
end
table.sort(waypoints)
for id, name in ipairs(waypoints) do
if id > 1 then
formspec = formspec .. ','
end
if not selected_name then
selected_name = name
end
if name == selected_name then
selected = id
end
formspec_list[#formspec_list + 1] = name
formspec = formspec .. '##' .. minetest.formspec_escape(name)
end
-- Close the text list and display the selected waypoint position
formspec = formspec .. ';' .. tostring(selected) .. ']'
if selected_name then
local pos = advmarkers.get_waypoint(selected_name)
if pos then
pos = minetest.formspec_escape(tostring(pos.x) .. ', ' ..
tostring(pos.y) .. ', ' .. tostring(pos.z))
pos = 'Waypoint position: ' .. pos
formspec = formspec .. 'label[0,6.75;' .. pos .. ']'
end
else
-- Draw over the buttons
formspec = formspec .. 'button_exit[0,7.5;5.25,0.5;quit;Close dialog]' ..
'label[0,6.75;No waypoints. Add one with ".add_mrkr".]'
end
-- Display the formspec
return minetest.show_formspec('advmarkers-csm', formspec)
end
function advmarkers.get_chatcommand_pos(pos)
if pos == 'h' or pos == 'here' then
pos = minetest.localplayer:get_pos()
elseif pos == 't' or pos == 'there' then
if not advmarkers.last_coords then
return false, 'No "there" position found!'
end
pos = advmarkers.last_coords
else
pos = string_to_pos(pos)
if not pos then
return false, 'Invalid position!'
end
end
return pos
end
local function register_chatcommand_alias(old, ...)
local def = assert(minetest.registered_chatcommands[old])
def.name = nil
for i = 1, select('#', ...) do
minetest.register_chatcommand(select(i, ...), table.copy(def))
end
end
-- Open the waypoints GUI
minetest.register_chatcommand('mrkr', {
params = '',
description = 'Open the advmarkers GUI',
func = function(param)
if param == '' then
advmarkers.display_formspec()
else
local pos, err = advmarkers.get_chatcommand_pos(param)
if not pos then
return false, err
end
if not advmarkers.set_hud_pos(pos) then
return false, 'Error setting the waypoint!'
end
end
end
})
register_chatcommand_alias('mrkr', 'wp', 'wps', 'waypoint', 'waypoints')
-- Add a waypoint
minetest.register_chatcommand('add_mrkr', {
params = '<pos / "here" / "there"> <name>',
description = 'Adds a waypoint.',
func = function(param)
local s, e = param:find(' ')
if not s or not e then
return false, 'Invalid syntax! See .help add_mrkr for more info.'
end
local pos = param:sub(1, s - 1)
local name = param:sub(e + 1)
-- Validate the position
local pos, err = advmarkers.get_chatcommand_pos(pos)
if not pos then
return false, err
end
-- Validate the name
if not name or #name < 1 then
return false, 'Invalid name!'
end
-- Set the waypoint
return advmarkers.set_waypoint(pos, name), 'Done!'
end
})
register_chatcommand_alias('add_mrkr', 'add_wp', 'add_waypoint')
-- Set the HUD
minetest.register_on_formspec_input(function(formname, fields)
if formname == 'advmarkers-ignore' then
return true
elseif formname ~= 'advmarkers-csm' then
return
end
local name = false
if fields.marker then
local event = minetest.explode_textlist_event(fields.marker)
if event.index then
name = formspec_list[event.index]
end
else
name = selected_name
end
if name then
if fields.display then
if not advmarkers.display_waypoint(name) then
minetest.display_chat_message('Error displaying waypoint!')
end
elseif fields.rename then
minetest.show_formspec('advmarkers-csm', 'size[6,3]' ..
'label[0.35,0.2;Rename waypoint]' ..
'field[0.3,1.3;6,1;new_name;New name;' ..
minetest.formspec_escape(name) .. ']' ..
'button[0,2;3,1;cancel;Cancel]' ..
'button[3,2;3,1;rename_confirm;Rename]')
elseif fields.rename_confirm then
if fields.new_name and #fields.new_name > 0 then
if advmarkers.rename_waypoint(name, fields.new_name) then
selected_name = fields.new_name
else
minetest.display_chat_message('Error renaming waypoint!')
end
advmarkers.display_formspec()
else
minetest.display_chat_message(
'Please enter a new name for the marker.'
)
end
elseif fields.teleport then
minetest.show_formspec('advmarkers-csm', 'size[6,2.2]' ..
'label[0.35,0.25;' .. minetest.formspec_escape(
'Teleport to a waypoint\n - ' .. name
) .. ']' ..
'button[0,1.25;2,1;cancel;Cancel]' ..
'button_exit[2,1.25;1,1;teleport_tpj;/tpj]' ..
'button_exit[3,1.25;1,1;teleport_tpc;/tpc]' ..
'button_exit[4,1.25;2,1;teleport_confirm;/teleport]')
elseif fields.teleport_tpj then
-- Teleport with /tpj
local pos = advmarkers.get_waypoint(name)
if pos and minetest.localplayer then
local cpos = minetest.localplayer:get_pos()
for _, dir in ipairs({'x', 'y', 'z'}) do
local distance = pos[dir] - cpos[dir]
minetest.run_server_chatcommand('tpj', dir .. ' ' ..
tostring(distance))
end
else
minetest.display_chat_message('Error teleporting to waypoint!')
end
elseif fields.teleport_confirm or fields.teleport_tpc then
-- Teleport with /teleport
local pos = advmarkers.get_waypoint(name)
local cmd
if fields.teleport_confirm then
cmd = 'teleport'
else
cmd = 'tpc'
end
if pos and minetest.localplayer then
minetest.run_server_chatcommand(cmd,
pos.x .. ',' .. pos.y .. ',' .. pos.z)
else
minetest.display_chat_message('Error teleporting to waypoint!')
end
elseif fields.delete then
minetest.show_formspec('advmarkers-csm', 'size[6,2]' ..
'label[0.35,0.25;Are you sure you want to delete this waypoint?]' ..
'button[0,1;3,1;cancel;Cancel]' ..
'button[3,1;3,1;delete_confirm;Delete]')
elseif fields.delete_confirm then
advmarkers.delete_waypoint(name)
selected_name = false
advmarkers.display_formspec()
elseif fields.cancel then
advmarkers.display_formspec()
elseif name ~= selected_name then
selected_name = name
advmarkers.display_formspec()
end
elseif fields.display or fields.delete then
minetest.display_chat_message('Please select a waypoint.')
end
return true
end)
-- Auto-add waypoints on death.
minetest.register_on_death(function()
if minetest.localplayer then
local name = 'Death waypoint'
local pos = minetest.localplayer:get_pos()
advmarkers.last_coords = pos
advmarkers.set_waypoint(pos, name)
minetest.display_chat_message('Added waypoint "' .. name .. '".')
end
end)
-- Allow string exporting
minetest.register_chatcommand('mrkr_export', {
params = '[old]',
description = 'Exports an advmarkers string containing all your markers.',
func = function(param)
local export
if param == 'old' then
export = advmarkers.export('M')
else
export = advmarkers.export()
end
minetest.show_formspec('advmarkers-ignore',
'field[_;Your waypoint export string;' ..
minetest.formspec_escape(export) .. ']')
end
})
register_chatcommand_alias('mrkr_export', 'wp_export', 'waypoint_export')
-- String importing
minetest.register_chatcommand('mrkr_import', {
params = '<advmarkers string>',
description = 'Imports an advmarkers string. This will not overwrite ' ..
'existing markers that have the same name.',
func = function(param)
if advmarkers.import(param) then
return true, 'Waypoints imported!'
else
return false, 'Invalid advmarkers string!'
end
end
})
register_chatcommand_alias('mrkr_export', 'wp_import', 'waypoint_import')
-- Upload waypoints to the advmarkers server-side mod.
minetest.register_chatcommand('mrkr_upload', {
params = '',
description = 'Uploads all waypoints to this server\'s advmarkers storage.',
func = function(param)
local data = advmarkers.export()
minetest.run_server_chatcommand('mrkr_import', data)
end
})
register_chatcommand_alias('mrkr_export', 'wp_upload', 'waypoint_upload')
-- Find co-ordinates sent in chat messages
if not minetest.registered_on_receiving_chat_message then
minetest.registered_on_receiving_chat_message =
minetest.registered_on_receiving_chat_messages
end
table.insert(minetest.registered_on_receiving_chat_message, 1, function(msg)
if msg:byte(1) == 1 or #msg > 1000 then return end
local raw_pos = msg:match('%-?[0-9%.]+, *%-?[0-9%.]+, *%-?[0-9%.]+')
if raw_pos then
local pos = string_to_pos(raw_pos)
if pos then
advmarkers.last_coords = pos
end
end
end)
-- Add '.mrkrthere'
minetest.register_chatcommand('mrkrthere', {
params = '',
description = 'Adds a (temporary) waypoint at the "there" position.',
func = function(param)
if not advmarkers.last_coords then
return false, 'No "there" position found!'
elseif not advmarkers.set_hud_pos(advmarkers.last_coords) then
return false, 'Error setting the waypoint!'
end
end
})
minetest.register_chatcommand('clrmrkr', {
params = '',
description = 'Hides the displayed waypoint.',
func = function(param)
if hud_id then
minetest.localplayer:hud_remove(hud_id)
hud_id = nil
return true, 'Hidden the currently displayed waypoint.'
elseif not minetest.localplayer.hud_add then
minetest.run_server_chatcommand('clrmrkr')
return
elseif not hud_id then
return false, 'No waypoint is currently being displayed!'
end
end,
})
register_chatcommand_alias('clrmrkr', 'clear_marker', 'clrwp',
'clear_waypoint')