mirror of
https://github.com/minetest-mods/towercrane.git
synced 2024-11-22 15:23:51 +01:00
730 lines
22 KiB
Lua
730 lines
22 KiB
Lua
--[[
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Tower Crane Mod
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===============
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v0.14 by JoSt
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Copyright (C) 2017 Joachim Stolberg
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LGPLv2.1+
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See LICENSE.txt for more information
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History:
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2017-06-04 v0.01 first version
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2017-06-06 v0.02 Hook bugfix
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2017-06-07 v0.03 fixed 2 bugs, added config.lua and sound
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2017-06-08 v0.04 recipe and rope length now configurable
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2017-06-10 v0.05 resizing bugfix, area protection added
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2017-07-11 v0.06 fixed the space check bug, settingtypes added
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2017-07-16 v0.07 crane remove bug fix
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2017-07-16 v0.08 player times out bugfix
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2017-08-19 v0.09 crane protection area to prevent crane clusters
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2017-08-27 v0.10 hook instance and sound switch off bug fixes
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2017-09-09 v0.11 further player bugfixes
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2017-09-24 v0.12 Switched from entity hook model to real fly privs
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2017-10-17 v0.13 Area protection bugfix
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2017-11-01 v0.14 Crane handing over bugfix
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]]--
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-- crane minimum size
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MIN_SIZE = 8
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towercrane = {}
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dofile(minetest.get_modpath("towercrane") .. "/config.lua")
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local function chat(owner, text)
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if owner ~= nil then
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minetest.chat_send_player(owner, "[Tower Crane] "..text)
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end
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end
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--##################################################################################################
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--## Construction Area
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--##################################################################################################
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-- Areas = {
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-- pos_key = {owner="...", pos1=pos, pos2=pos},
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-- }
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local storage = minetest.get_mod_storage()
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local Areas = minetest.deserialize(storage:get_string("Areas")) or {}
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local function update_mod_storage()
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storage:set_string("Areas", minetest.serialize(Areas))
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end
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minetest.register_on_shutdown(function()
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update_mod_storage()
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end)
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----------------------------------------------------------------------------------------------------
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-- The same player can't place a crane within another protection area
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----------------------------------------------------------------------------------------------------
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local function no_area_violation(owner, pos)
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local res = true
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local px, py, pz = pos.x, pos.y, pos.z
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for key, area in pairs(Areas) do
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if owner == area.owner then
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local pos1, pos2 = area.pos1, area.pos2
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if (px >= pos1.x and px <= pos2.x) and (py >= pos1.y and py <= pos2.y) and
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(pz >= pos1.z and pz <= pos2.z) then
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res = false
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break
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end
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end
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end
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return res
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end
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local function store_crane_data(owner, pos, pos1, pos2)
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-- normalize x/z so that pos2 > pos1
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if pos2.x < pos1.x then
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pos2.x, pos1.x = pos1.x, pos2.x
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end
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if pos2.z < pos1.z then
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pos2.z, pos1.z = pos1.z, pos2.z
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end
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-- store data
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local key = minetest.pos_to_string(pos)
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Areas[key] = {owner=owner, pos1=pos1, pos2=pos2}
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update_mod_storage()
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end
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local function remove_crane_data(pos)
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local key = minetest.pos_to_string(pos)
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Areas[key] = nil
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update_mod_storage()
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end
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--##################################################################################################
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--## Tower Crane Hook (player)
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--##################################################################################################
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-- give/take player the necessary privs/physics
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local function fly_privs(player, enable)
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local privs = minetest.get_player_privs(player:get_player_name())
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local physics = player:get_physics_override()
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if privs then
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if enable == true then
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player:set_attribute("store_fast", minetest.serialize(privs["fast"]))
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player:set_attribute("store_fly", minetest.serialize(privs["fly"]))
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player:set_attribute("store_speed", minetest.serialize(physics.speed))
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player:set_attribute("crane_active", "true")
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privs["fly"] = true
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privs["fast"] = nil
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physics.speed = 0.7
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else
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privs["fast"] = minetest.deserialize(player:get_attribute("store_fast"))
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privs["fly"] = minetest.deserialize(player:get_attribute("store_fly"))
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physics.speed = minetest.deserialize(player:get_attribute("store_speed"))
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player:set_attribute("crane_active", nil)
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end
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player:set_physics_override(physics)
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minetest.set_player_privs(player:get_player_name(), privs)
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end
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end
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local function control_player(pos, pos1, pos2, player)
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if player then
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local meta = minetest.get_meta(pos)
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local running = meta:get_int("running")
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if running == 1 then
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-- check if outside of the construction area
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local correction = false
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local pl_pos = player:getpos()
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if pl_pos then
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if pl_pos.x < pos1.x then pl_pos.x = pos1.x; correction = true end
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if pl_pos.x > pos2.x then pl_pos.x = pos2.x; correction = true end
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if pl_pos.y < pos1.y then pl_pos.y = pos1.y; correction = true end
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if pl_pos.y > pos2.y then pl_pos.y = pos2.y; correction = true end
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if pl_pos.z < pos1.z then pl_pos.z = pos1.z; correction = true end
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if pl_pos.z > pos2.z then pl_pos.z = pos2.z; correction = true end
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if correction == true then
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if minetest.get_node(pl_pos).name == "air" then
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player:setpos(pl_pos)
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else
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local last_pos = minetest.string_to_pos(meta:get_string("last_known_pos"))
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player:setpos(last_pos)
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end
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else -- store last known correct position
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meta:set_string("last_known_pos", minetest.pos_to_string(pl_pos))
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end
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minetest.after(1, control_player, pos, pos1, pos2, player)
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end
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end
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else
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local meta = minetest.get_meta(pos)
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meta:set_int("running", 0)
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end
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end
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-- Place the player in front of the base and give fly privs
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local function place_hook(pos, dir, player, pos1, pos2)
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if player then
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local switch_pos = {x=pos.x, y=pos.y, z=pos.z}
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local meta = minetest.get_meta(switch_pos)
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meta:set_int("running", 1)
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-- place the player
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pos.y = pos.y - 1
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pos.x = pos.x + dir.x
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pos.z = pos.z + dir.z
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player:setpos(pos)
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meta:set_string("last_known_pos", minetest.pos_to_string(pos))
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-- set privs
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fly_privs(player, true)
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-- control player every second
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minetest.after(1, control_player, switch_pos, pos1, pos2, player)
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end
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end
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-- Normalize the player privs
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local function remove_hook(pos, player)
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if player then
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if pos then
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local meta = minetest.get_meta(pos)
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meta:set_int("running", 0)
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end
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fly_privs(player, nil)
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end
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end
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--##################################################################################################
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--## Tower Crane
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--##################################################################################################
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local function turnright(dir)
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local facedir = minetest.dir_to_facedir(dir)
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return minetest.facedir_to_dir((facedir + 1) % 4)
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end
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local function turnleft(dir)
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local facedir = minetest.dir_to_facedir(dir)
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return minetest.facedir_to_dir((facedir + 3) % 4)
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end
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----------------------------------------------------------------------------------------------------
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-- generic function for contruction and removement
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----------------------------------------------------------------------------------------------------
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local function crane_body_plan(pos, dir, height, width, clbk, tArg)
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pos.y = pos.y + 1
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clbk(pos, "towercrane:mast_ctrl_off", tArg)
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for i = 1,height+1 do
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pos.y = pos.y + 1
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clbk(pos, "towercrane:mast", tArg)
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end
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pos.y = pos.y - 2
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pos.x = pos.x - dir.x
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pos.z = pos.z - dir.z
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clbk(pos, "towercrane:arm2", tArg)
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pos.x = pos.x - dir.x
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pos.z = pos.z - dir.z
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clbk(pos, "towercrane:arm", tArg)
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pos.x = pos.x - dir.x
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pos.z = pos.z - dir.z
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clbk(pos, "towercrane:balance", tArg)
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pos.x = pos.x + 3 * dir.x
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pos.z = pos.z + 3 * dir.z
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for i = 1,width do
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pos.x = pos.x + dir.x
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pos.z = pos.z + dir.z
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if i % 2 == 0 then
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clbk(pos, "towercrane:arm2", tArg)
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else
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clbk(pos, "towercrane:arm", tArg)
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end
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end
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end
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----------------------------------------------------------------------------------------------------
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-- Check space are protection for mast and arm
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----------------------------------------------------------------------------------------------------
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local function check_space(pos, dir, height, width, owner)
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local remove = function(pos, node_name, tArg)
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if minetest.get_node(pos).name ~= "air" then
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tArg.res = false
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elseif minetest.is_protected(pos, tArg.owner) then
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tArg.res = false
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end
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end
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local tArg = {res = true, owner = owner}
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crane_body_plan(pos, dir, height, width, remove, tArg)
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return tArg.res
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end
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----------------------------------------------------------------------------------------------------
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-- Constuct mast and arm
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----------------------------------------------------------------------------------------------------
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local function construct_crane(pos, dir, height, width, owner)
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local add = function(pos, node_name, tArg)
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minetest.add_node(pos, {name=node_name, param2=minetest.dir_to_facedir(tArg.dir)})
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end
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local tArg = {dir = dir}
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crane_body_plan(table.copy(pos), dir, height, width, add, tArg)
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pos.y = pos.y + 1
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local meta = minetest.get_meta(pos)
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meta:set_string("dir", minetest.pos_to_string(dir))
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meta:set_string("owner", owner)
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meta:set_int("height", height)
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meta:set_int("width", width)
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end
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----------------------------------------------------------------------------------------------------
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-- Remove the crane
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----------------------------------------------------------------------------------------------------
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local function remove_crane(pos, dir, height, width)
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local remove = function(pos, node_name, tArg)
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if minetest.get_node(pos).name == node_name or
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minetest.get_node(pos).name == "towercrane:mast_ctrl_on" then
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minetest.remove_node(pos)
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end
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end
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crane_body_plan(table.copy(pos), dir, height, width, remove, {})
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end
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----------------------------------------------------------------------------------------------------
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-- Calculate and set the protection area (pos1, pos2)
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----------------------------------------------------------------------------------------------------
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local function protect_area(pos, dir, height, width, owner)
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if not areas then return 0 end
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-- pos1 = close/right/below
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dir = turnright(dir)
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dir = turnright(dir)
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local pos1 = vector.add(pos, vector.multiply(dir, 2))
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dir = turnleft(dir)
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pos1 = vector.add(pos1, vector.multiply(dir, width/2))
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dir = turnleft(dir)
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pos1.y = pos.y - 2
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-- pos2 = far/left/above
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local pos2 = vector.add(pos1, vector.multiply(dir, width+2))
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dir = turnleft(dir)
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pos2 = vector.add(pos2, vector.multiply(dir, width))
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pos2.y = pos.y + 2 + height
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store_crane_data(owner, pos, pos1, pos2)
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-- add area
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local canAdd, errMsg = areas:canPlayerAddArea(pos1, pos2, owner)
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if canAdd then
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local id = areas:add(owner, "Construction site", pos1, pos2, nil)
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areas:save()
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return id
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end
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return nil
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end
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----------------------------------------------------------------------------------------------------
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-- Remove the protection area
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----------------------------------------------------------------------------------------------------
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local function remove_area(id, owner)
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if not areas then return end
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if areas:isAreaOwner(id, owner) then
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areas:remove(id)
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areas:save()
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end
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end
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----------------------------------------------------------------------------------------------------
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-- Check user input (height, width)
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----------------------------------------------------------------------------------------------------
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local function check_input(fields)
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local size = string.split(fields.size, ",")
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if #size == 2 then
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local height = tonumber(size[1])
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local width = tonumber(size[2])
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if height ~= nil and width ~= nil then
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height = math.max(height, MIN_SIZE)
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height = math.min(height, towercrane.max_height)
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width = math.max(width, MIN_SIZE)
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width = math.min(width, towercrane.max_width)
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return height, width
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end
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end
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return 0, 0
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end
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----------------------------------------------------------------------------------------------------
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-- Register Crane base
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----------------------------------------------------------------------------------------------------
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minetest.register_node("towercrane:base", {
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description = "Tower Crane Base",
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inventory_image = "towercrane_invent.png",
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tiles = {
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"towercrane_base_top.png",
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"towercrane_base.png",
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"towercrane_base.png",
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"towercrane_base.png",
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"towercrane_base.png",
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"towercrane_base.png",
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},
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paramtype = "light",
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paramtype2 = "facedir",
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sunlight_propagates = true,
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sounds = default.node_sound_stone_defaults(),
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is_ground_content = false,
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groups = {cracky=2},
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-- set meta data (form for crane height and width, dir of the arm)
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after_place_node = function(pos, placer)
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local meta = minetest.get_meta(pos)
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local owner = placer:get_player_name()
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meta:set_string("owner", owner)
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local formspec = "size[5,4]"..
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"label[0,0;Construction area size]" ..
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"field[1,1.5;3,1;size;height,width;]" ..
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"button_exit[1,2;2,1;exit;Save]"
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meta:set_string("formspec", formspec)
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local fdir = minetest.dir_to_facedir(placer:get_look_dir(), false)
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local dir = minetest.facedir_to_dir(fdir)
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meta:set_string("dir", minetest.pos_to_string(dir))
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end,
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-- evaluate user input (height, width), destroyed old crane and build a new one with
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-- the given size
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on_receive_fields = function(pos, formname, fields, player)
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local switch_pos = {x=pos.x, y=pos.y+1, z=pos.z}
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if fields.size == nil then
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return
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end
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local meta = minetest.get_meta(switch_pos)
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local running = meta:get_int("running")
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if running == 1 then
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return
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end
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meta = minetest.get_meta(pos)
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local owner = meta:get_string("owner")
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local dir = minetest.string_to_pos(meta:get_string("dir"))
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local height = meta:get_int("height")
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local width = meta:get_int("width")
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local id = meta:get_int("id")
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if not player or not player:is_player() then
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return
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end
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if player:get_player_name() ~= owner then
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return
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end
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-- destroy area and crane
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if dir ~= nil and height ~= nil and width ~= nil then
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remove_crane_data(pos)
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remove_area(id, owner)
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remove_crane(table.copy(pos), dir, height, width)
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remove_hook(pos, player)
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end
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-- evaluate user input
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height, width = check_input(fields)
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if height ~= 0 then
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meta:set_int("height", height)
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meta:set_int("width", width)
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meta:set_string("infotext", "Crane size: " .. height .. "," .. width)
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if no_area_violation(owner, pos) then
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if dir ~= nil then
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if check_space(table.copy(pos), dir, height, width, owner) then
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-- add protection area
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meta:set_int("id", protect_area(table.copy(pos), table.copy(dir), height, width, owner))
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construct_crane(table.copy(pos), table.copy(dir), height, width, owner)
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else
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chat(owner, "area is protected or too less space to raise up the crane!")
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end
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end
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else
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chat(owner, "Too less distance to your other crane(s)!")
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end
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else
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chat(owner, "Invalid input!")
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end
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end,
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can_dig = function(pos, player)
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local switch_pos = {x=pos.x, y=pos.y+1, z=pos.z}
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local meta = minetest.get_meta(pos)
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local owner = meta:get_string("owner")
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if player:get_player_name() ~= owner then
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return false
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end
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meta = minetest.get_meta(switch_pos)
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local running = meta:get_int("running")
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if running == 1 then
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return false
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end
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return true
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end,
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-- remove mast and arm if base gets destroyed
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on_destruct = function(pos)
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local meta = minetest.get_meta(pos)
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local dir = minetest.string_to_pos(meta:get_string("dir"))
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local height = meta:get_int("height")
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local width = meta:get_int("width")
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local id = meta:get_int("id")
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local owner = meta:get_string("owner")
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-- remove protection area
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if id ~= nil then
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remove_area(id, owner)
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end
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-- remove crane
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if dir ~= nil and height ~= nil and width ~= nil then
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remove_crane_data(pos)
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remove_crane(pos, dir, height, width)
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end
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-- remove hook
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local player = minetest.get_player_by_name(owner)
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remove_hook({x=pos.x, y=pos.y+1, z=pos.z}, player)
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end,
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})
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----------------------------------------------------------------------------------------------------
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-- Register Crane balance
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----------------------------------------------------------------------------------------------------
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|
minetest.register_node("towercrane:balance", {
|
|
description = "Tower Crane Balance",
|
|
tiles = {
|
|
"towercrane_base.png",
|
|
"towercrane_base.png",
|
|
"towercrane_base.png",
|
|
"towercrane_base.png",
|
|
"towercrane_base.png",
|
|
"towercrane_base.png",
|
|
},
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Crane mast
|
|
----------------------------------------------------------------------------------------------------
|
|
minetest.register_node("towercrane:mast", {
|
|
description = "Tower Crane Mast",
|
|
drawtype = "glasslike_framed",
|
|
tiles = {
|
|
"towercrane_mast.png",
|
|
"towercrane_mast.png",
|
|
"towercrane_mast.png",
|
|
"towercrane_mast.png",
|
|
"towercrane_mast.png",
|
|
"towercrane_mast.png",
|
|
},
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Crane Switch (on)
|
|
----------------------------------------------------------------------------------------------------
|
|
minetest.register_node("towercrane:mast_ctrl_on", {
|
|
description = "Tower Crane Mast Ctrl On",
|
|
drawtype = "node",
|
|
tiles = {
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl_on.png",
|
|
"towercrane_mast_ctrl_on.png",
|
|
},
|
|
-- switch the crane OFF
|
|
on_rightclick = function (pos, node, clicker)
|
|
local meta = minetest.get_meta(pos)
|
|
if not clicker or not clicker:is_player() then
|
|
return
|
|
end
|
|
if clicker:get_player_name() ~= meta:get_string("owner") then
|
|
return
|
|
end
|
|
node.name = "towercrane:mast_ctrl_off"
|
|
minetest.swap_node(pos, node)
|
|
|
|
local id = minetest.hash_node_position(pos)
|
|
remove_hook(pos, clicker)
|
|
end,
|
|
|
|
on_construct = function(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
meta:set_string("infotext", "Switch crane on/off")
|
|
end,
|
|
|
|
after_place_node = function(pos, placer, itemstack, pointed_thing)
|
|
local meta = minetest.get_meta(pos)
|
|
local owner = placer:get_player_name()
|
|
meta:set_string("owner", owner)
|
|
end,
|
|
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Crane Switch (off)
|
|
----------------------------------------------------------------------------------------------------
|
|
minetest.register_node("towercrane:mast_ctrl_off", {
|
|
description = "Tower Crane Mast Ctrl Off",
|
|
drawtype = "node",
|
|
tiles = {
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl.png",
|
|
"towercrane_mast_ctrl_off.png",
|
|
"towercrane_mast_ctrl_off.png",
|
|
},
|
|
-- switch the crane ON
|
|
on_rightclick = function (pos, node, clicker)
|
|
-- calculate the construction area, and place the hook
|
|
local meta = minetest.get_meta(pos)
|
|
-- only the owner is allowed to switch
|
|
if not clicker or not clicker:is_player() then
|
|
return
|
|
end
|
|
if clicker:get_player_name() ~= meta:get_string("owner") then
|
|
return
|
|
end
|
|
-- prevent handing over to the next crane
|
|
if clicker:get_attribute("crane_active") ~= nil then
|
|
return
|
|
end
|
|
-- swap to the other node
|
|
node.name = "towercrane:mast_ctrl_on"
|
|
minetest.swap_node(pos, node)
|
|
local dir = minetest.string_to_pos(meta:get_string("dir"))
|
|
if pos ~= nil and dir ~= nil then
|
|
--
|
|
-- calculate the construction area dimension (pos1, pos2)
|
|
--
|
|
local height = meta:get_int("height")
|
|
local width = meta:get_int("width")
|
|
|
|
-- pos1 = close/right/below
|
|
dir = turnright(dir)
|
|
local pos1 = vector.add(pos, vector.multiply(dir, width/2))
|
|
dir = turnleft(dir)
|
|
pos1 = vector.add(pos1, vector.multiply(dir, 1))
|
|
pos1.y = pos.y - 2 + height - towercrane.rope_length
|
|
|
|
-- pos2 = far/left/above
|
|
local pos2 = vector.add(pos1, vector.multiply(dir, width-1))
|
|
dir = turnleft(dir)
|
|
pos2 = vector.add(pos2, vector.multiply(dir, width))
|
|
pos2.y = pos.y - 3 + height
|
|
|
|
-- normalize x/z so that pos2 > pos1
|
|
if pos2.x < pos1.x then
|
|
pos2.x, pos1.x = pos1.x, pos2.x
|
|
end
|
|
if pos2.z < pos1.z then
|
|
pos2.z, pos1.z = pos1.z, pos2.z
|
|
end
|
|
|
|
dir = minetest.string_to_pos(meta:get_string("dir"))
|
|
place_hook(pos, dir, clicker, pos1, pos2)
|
|
end
|
|
end,
|
|
|
|
on_construct = function(pos)
|
|
-- add infotext
|
|
local meta = minetest.get_meta(pos)
|
|
meta:set_string("infotext", "Switch crane on/off")
|
|
end,
|
|
|
|
after_place_node = function(pos, placer, itemstack, pointed_thing)
|
|
-- store owner for dig protection
|
|
local meta = minetest.get_meta(pos)
|
|
local owner = placer:get_player_name()
|
|
meta:set_string("owner", owner)
|
|
end,
|
|
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Crane arm 1
|
|
----------------------------------------------------------------------------------------------------
|
|
minetest.register_node("towercrane:arm", {
|
|
description = "Tower Crane Arm",
|
|
drawtype = "glasslike_framed",
|
|
tiles = {
|
|
"towercrane_arm.png",
|
|
"towercrane_arm.png",
|
|
"towercrane_arm.png",
|
|
"towercrane_arm.png",
|
|
"towercrane_arm.png",
|
|
"towercrane_arm.png",
|
|
},
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Crane arm 2
|
|
----------------------------------------------------------------------------------------------------
|
|
minetest.register_node("towercrane:arm2", {
|
|
description = "Tower Crane Arm2",
|
|
drawtype = "glasslike_framed",
|
|
tiles = {
|
|
"towercrane_arm2.png",
|
|
"towercrane_arm2.png",
|
|
"towercrane_arm2.png",
|
|
"towercrane_arm2.png",
|
|
"towercrane_arm2.png",
|
|
"towercrane_arm2.png",
|
|
},
|
|
paramtype = "light",
|
|
paramtype2 = "facedir",
|
|
sunlight_propagates = true,
|
|
is_ground_content = false,
|
|
groups = {crumbly=0, not_in_creative_inventory=1},
|
|
})
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------
|
|
-- Register Recipe
|
|
----------------------------------------------------------------------------------------------------
|
|
if towercrane.recipe then
|
|
minetest.register_craft({
|
|
output = "towercrane:base",
|
|
recipe = {
|
|
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
|
|
{"default:steel_ingot", "", ""},
|
|
{"default:steel_ingot", "dye:yellow", ""}
|
|
}
|
|
})
|
|
end
|
|
|
|
-- switch back to normal player privs
|
|
minetest.register_on_leaveplayer(function(player, timed_out)
|
|
remove_hook(nil, player)
|
|
end)
|
|
|
|
|