142 lines
4.0 KiB
Lua
142 lines
4.0 KiB
Lua
--[[
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TechAge
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=======
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Copyright (C) 2017-2025 Joachim Stolberg
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AGPL v3
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See LICENSE.txt for more information
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TA3 Observer
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]]--
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-- for lazy programmers
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local M = minetest.get_meta
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local S = techage.S
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local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
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local S2P = minetest.string_to_pos
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local CYCLE_TIME = 2 -- seconds
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local RADIUS = 8 -- radius for player detection
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local function scan_for_player(pos)
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for _, object in pairs(minetest.get_objects_inside_radius(pos, RADIUS)) do
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if object:is_player() then
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return true
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end
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end
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return false
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end
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local function animation(pos, in_dir, stack)
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local offs = vector.divide(tubelib2.Dir6dToVector[tubelib2.Turn180Deg[in_dir or 0]], 1.8)
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local obj = minetest.add_entity(vector.add(pos, offs), "techage:observer_item")
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if obj then
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obj:set_properties({wield_item=stack:get_name()})
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local dir = tubelib2.Dir6dToVector[in_dir or 0]
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local acc = vector.multiply(dir, 4)
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obj:set_acceleration(acc)
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end
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end
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local function valid_surroundings(pos, in_dir)
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local node1 = minetest.get_node(tubelib2.get_pos(pos, in_dir))
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local node2 = minetest.get_node(tubelib2.get_pos(pos, tubelib2.Turn180Deg[in_dir or 0]))
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return node1.name ~= "techage:ta3_observer" and node2.name ~= "techage:ta3_observer"
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end
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minetest.register_entity("techage:observer_item", {
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initial_properties = {
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pointable = false,
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makes_footstep_sound = false,
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static_save = false,
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collide_with_objects = false,
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physical = false,
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automatic_rotate = 5,
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visual = "wielditem",
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wield_item = "default:dirt",
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visual_size = {x=0.25, y=0.25, z=0.25},
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},
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on_step = function(self, dtime, moveresult)
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self.ttl = self.ttl or 1.0
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self.ttl = self.ttl - dtime
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if self.ttl <= 0 then
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self.object:remove()
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end
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end,
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})
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minetest.register_node("techage:ta3_observer", {
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description = S("TA3 Observation Window"),
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inventory_image = 'techage_observer_inv.png',
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {
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{ 7/16, -8/16, -8/16, 8/16, 8/16, 8/16},
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{-8/16, 7/16, -8/16, 8/16, 8/16, 8/16},
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{-8/16, -8/16, 7/16, 8/16, 8/16, 8/16},
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{-8/16, -8/16, -8/16, -7/16, 8/16, 8/16},
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{-8/16, -8/16, -8/16, 8/16, -7/16, 8/16},
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{-8/16, -8/16, -8/16, 8/16, 8/16, -7/16},
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},
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},
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selection_box = {
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type = "fixed",
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fixed = {
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{-8/16, -8/16, -8/16, 8/16, 8/16, 8/16},
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},
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},
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tiles = {
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"techage_basalt_glass2.png^default_obsidian_glass.png",
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},
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after_place_node = function(pos, placer)
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minetest.get_node_timer(pos):start(CYCLE_TIME)
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M(pos):set_string("infotext", "TA3 Observation Window")
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end,
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after_dig_node = function(pos, oldnode, oldmetadata, digger)
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techage.remove_node(pos, oldnode, oldmetadata)
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techage.del_mem(pos)
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end,
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on_timer = function (pos, elapsed)
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local nvm = techage.get_nvm(pos)
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nvm.active = scan_for_player(pos)
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return true
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end,
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on_rotate = screwdriver.disallow,
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use_texture_alpha = techage.BLEND,
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paramtype = "light",
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sunlight_propagates = true,
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paramtype2 = "facedir",
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groups = {cracky = 3, oddly_breakable_by_hand = 3},
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is_ground_content = false,
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sounds = default.node_sound_glass_defaults(),
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})
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minetest.register_craft({
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output = "techage:ta3_observer",
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recipe = {
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{"techage:basalt_glass_thin2", "default:steel_ingot", "techage:basalt_glass_thin2"},
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{"techage:tubeS", "", "techage:tubeS"},
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{"techage:basalt_glass_thin2", "default:steel_ingot", "techage:basalt_glass_thin2"},
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},
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})
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techage.register_node({"techage:ta3_observer"}, {
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on_push_item = function(pos, in_dir, stack)
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local leftover = techage.safe_push_items(pos, in_dir, stack)
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local nvm = techage.get_nvm(pos)
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if nvm.active and valid_surroundings(pos, in_dir) and leftover then
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if leftover == true or leftover:get_count() ~= stack:get_count() then
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animation(pos, in_dir, stack)
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end
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end
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return leftover
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end,
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is_pusher = true, -- is a pulling/pushing node
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})
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