mods that hopefully work for a TechAge-based pack

mods/techage_modpack/signs_bot/robot.lua

@@ -0,0 +1,145 @@
+--[[
+
+	Signs Bot
+	=========
+
+	Copyright (C) 2019-2023 Joachim Stolberg
+
+	GPL v3
+	See LICENSE.txt for more information
+
+	Signs Bot: The Robot itself
+
+]]--
+
+local lib = signs_bot.lib
+local enable_LBM = minetest.settings:get_bool("signs_bot_enable_LBM") == true
+
+-- Called when robot is started
+function signs_bot.place_robot(pos1, pos2, param2)
+	local node1 = tubelib2.get_node_lvm(pos1)
+	local node2 = tubelib2.get_node_lvm(pos2)
+	if lib.check_pos(pos1, node1, node2, param2) then
+		minetest.set_node(pos1, {name = "signs_bot:robot", param2 = param2})
+	end
+end
+
+-- Called when robot is removed
+function signs_bot.remove_robot(mem)
+	local pos = mem.robot_pos
+	local node = tubelib2.get_node_lvm(pos)
+	if node.name == "signs_bot:robot" then
+		minetest.remove_node(pos)
+		local pos1 = {x=pos.x, y=pos.y-1, z=pos.z}
+		node = tubelib2.get_node_lvm(pos1)
+		if node.name == "signs_bot:robot_foot" or node.name == "signs_bot:robot_leg" then
+			if node.name == "signs_bot:robot_foot" then
+				lib.swap_node(pos1, mem.stored_node or {name = "air"})
+			else
+				minetest.remove_node(pos1)
+			end
+			pos1 = {x=pos.x, y=pos.y-2, z=pos.z}
+			node = tubelib2.get_node_lvm(pos1)
+			if node.name == "signs_bot:robot_foot" then
+				lib.swap_node(pos1, mem.stored_node or {name = "air"})
+			end
+		else
+			lib.swap_node(pos, mem.stored_node or {name = "air"})
+		end
+	end
+end
+
+minetest.register_node("signs_bot:robot", {
+	-- up, down, right, left, back, front
+	tiles = {
+		"signs_bot_robot_top.png",
+		"signs_bot_robot_bottom.png",
+		"signs_bot_robot_right.png",
+		"signs_bot_robot_left.png",
+		"signs_bot_robot_front.png",
+		"signs_bot_robot_back.png",
+
+	},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -5/16,  3/16, -5/16,   5/16,  8/16, 5/16},
+			{ -3/16,  2/16, -3/16,   3/16,  3/16, 3/16},
+			{ -6/16, -7/16, -6/16,   6/16,  2/16, 6/16},
+			{ -6/16, -8/16, -3/16,   6/16, -7/16, 3/16},
+		},
+	},
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = signs_bot.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	drop = "",
+	groups = {cracky=1, not_in_creative_inventory = 1,
+		plant = 1, -- prevents the transformation from wet soil to soil
+	},
+	sounds = default.node_sound_metal_defaults(),
+})
+
+minetest.register_node("signs_bot:robot_leg", {
+	tiles = {"signs_bot_robot.png^[transformR90]"},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -1/8, -4/8, -1/8,   1/8, 4/8, 1/8},
+		},
+	},
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = signs_bot.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	drop = "",
+	groups = {cracky=1, not_in_creative_inventory = 1},
+	sounds = default.node_sound_metal_defaults(),
+})
+
+minetest.register_node("signs_bot:robot_foot", {
+	tiles = {"signs_bot_robot.png^[transformR90]"},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -1/8, -4/8, -1/8,   1/8, 4/8, 1/8},
+			{ -2/8, -4/8, -2/8,   2/8, -3/8, 2/8},
+		},
+	},
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = signs_bot.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	drop = "",
+	groups = {cracky=1, not_in_creative_inventory = 1,
+		plant = 1, -- prevents the transformation from wet soil to soil
+	},
+	sounds = default.node_sound_metal_defaults(),
+})
+
+if enable_LBM then
+	minetest.register_lbm({
+		label = "[signs_bot] Remove lost robots",
+		name = "signs_bot:lost_robot_remove",
+		nodenames = {"signs_bot:robot"},
+		run_at_every_load = true,
+		action = function(pos, node)
+			local found = false
+			tubelib2.walk_over_all(function(npos, node, mem)
+				if node.name == "signs_bot:box" and mem.robot_pos and
+					vector.equals(pos, mem.robot_pos) then
+					found = true
+				end
+			end, "robot_pos")
+			if not found then
+				signs_bot.remove_robot({robot_pos = pos})
+			end
+		end
+	})
+end