73 lines
1.7 KiB
Lua
73 lines
1.7 KiB
Lua
--[[
|
|
|
|
TechAge
|
|
=======
|
|
|
|
Copyright (C) 2019 Joachim Stolberg
|
|
|
|
GPL v3
|
|
See LICENSE.txt for more information
|
|
|
|
TA3/TA4 Power line Protection
|
|
]]--
|
|
|
|
local M = minetest.get_meta
|
|
local S = techage.S
|
|
|
|
local RANGE = 8
|
|
|
|
local IsNodeUnderObservation = {}
|
|
|
|
-- Register all nodes, which should be protected by the "techage:power_pole"
|
|
function techage.register_powerline_node(name)
|
|
IsNodeUnderObservation[name] = true
|
|
end
|
|
|
|
local function powerpole_found(pos, name, range)
|
|
local pos1 = {x=pos.x-range, y=pos.y-range, z=pos.z-range}
|
|
local pos2 = {x=pos.x+range, y=pos.y+range, z=pos.z+range}
|
|
for _,npos in ipairs(minetest.find_nodes_in_area(pos1, pos2, {
|
|
"techage:power_pole", "techage:power_pole_conn",
|
|
"techage:power_pole2"})) do
|
|
if minetest.get_meta(npos):get_string("owner") ~= name then
|
|
return true
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
local function is_protected(pos, name, range)
|
|
if minetest.check_player_privs(name, "powerline")
|
|
or not powerpole_found(pos, name, range) then
|
|
return false
|
|
end
|
|
return true
|
|
end
|
|
|
|
function techage.is_protected(pos, name)
|
|
return is_protected(pos, name, RANGE+3)
|
|
end
|
|
|
|
|
|
local old_is_protected = minetest.is_protected
|
|
|
|
function minetest.is_protected(pos, name)
|
|
local node = techage.get_node_lvm(pos)
|
|
if IsNodeUnderObservation[node.name] and is_protected(pos, name, RANGE) then
|
|
return true
|
|
end
|
|
return old_is_protected(pos, name)
|
|
end
|
|
|
|
minetest.register_privilege("powerline", {
|
|
description = S("Allow to dig/place Techage power lines nearby power poles"),
|
|
give_to_singleplayer = false,
|
|
give_to_admin = true,
|
|
})
|
|
|
|
techage.register_powerline_node("techage:power_line")
|
|
techage.register_powerline_node("techage:power_lineS")
|
|
techage.register_powerline_node("techage:power_lineA")
|
|
techage.register_powerline_node("techage:power_pole3")
|
|
|