mods that hopefully work for a TechAge-based pack

mods/techage_modpack/techage/carts/tank_cart.lua

@@ -0,0 +1,176 @@
+--[[
+
+	TechAge
+	=======
+
+	Copyright (C) 2019-2020 Joachim Stolberg
+
+	AGPL v3
+	See LICENSE.txt for more information
+
+	TA3 Tank Cart
+
+]]--
+
+-- for lazy programmers
+local M = minetest.get_meta
+local S = techage.S
+local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
+local S2P = minetest.string_to_pos
+local Pipe = techage.LiquidPipe
+local MP = minetest.get_modpath("minecart")
+
+local liquid = networks.liquid
+local CAPACITY = 200
+
+local function on_rightclick(pos, node, clicker)
+	if clicker and clicker:is_player() then
+		if M(pos):get_int("userID") == 0 then
+			minecart.show_formspec(pos, clicker)
+		else
+			local nvm = techage.get_nvm(pos)
+			techage.set_activeformspec(pos, clicker)
+			M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+			minetest.get_node_timer(pos):start(2)
+		end
+	end
+end
+
+local function node_timer(pos, elapsed)
+	if techage.is_activeformspec(pos) then
+		local nvm = techage.get_nvm(pos)
+		M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+		return true
+	end
+	return false
+end
+
+local function peek_liquid(pos)
+	local nvm = techage.get_nvm(pos)
+	return liquid.srv_peek(nvm)
+end
+
+local function take_liquid(pos, indir, name, amount)
+	local nvm = techage.get_nvm(pos)
+	amount, name = liquid.srv_take(nvm, name, amount)
+	if techage.is_activeformspec(pos) then
+		M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+	end
+	return amount, name
+end
+
+local function put_liquid(pos, indir, name, amount)
+	-- check if it is not powder
+	local ndef = minetest.registered_craftitems[name] or {}
+	if not ndef.groups or ndef.groups.powder ~= 1 then
+		local nvm = techage.get_nvm(pos)
+		local leftover = liquid.srv_put(nvm, name, amount, CAPACITY)
+		if techage.is_activeformspec(pos) then
+			M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+		end
+		return leftover
+	end
+	return amount
+end
+
+local function untake_liquid(pos, indir, name, amount)
+	local nvm = techage.get_nvm(pos)
+	local leftover = liquid.srv_put(nvm, name, amount, CAPACITY)
+	if techage.is_activeformspec(pos) then
+		M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+	end
+	return leftover
+end
+
+minetest.register_node("techage:tank_cart", {
+	description = S("TA Tank Cart"),
+	tiles = {
+		-- up, down, right, left, back, front
+			"techage_tank_cart_top.png",
+			"techage_tank_cart_bottom.png",
+			"techage_tank_cart_side.png",
+			"techage_tank_cart_side.png",
+			"techage_tank_cart_front.png",
+			"techage_tank_cart_front.png",
+		},
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-3/16,  7/16, -3/16, 3/16, 8/16, 3/16},
+			{-7/16,  3/16, -7/16, 7/16, 7/16, 7/16},
+			{-8/16, -8/16, -8/16, 8/16, 3/16, 8/16},
+		},
+	},
+	paramtype2 = "facedir",
+	paramtype = "light",
+	use_texture_alpha = techage.CLIP,
+	sunlight_propagates = true,
+	is_ground_content = false,
+	groups = {cracky = 2, crumbly = 2, choppy = 2},
+	node_placement_prediction = "",
+	diggable = false,
+
+	on_place = minecart.on_nodecart_place,
+	on_punch = minecart.on_nodecart_punch,
+
+	after_place_node = function(pos)
+		local nvm = techage.get_nvm(pos)
+		nvm.liquid = nvm.liquid or {}
+		M(pos):set_string("formspec", techage.liquid.formspec(pos, nvm))
+		-- Delete the network between pump and cart
+		Pipe:after_dig_node(pos)
+		Pipe:after_place_node(pos)
+	end,
+
+	set_cargo = function(pos, data)
+		local nvm = techage.get_nvm(pos)
+		nvm.liquid = data
+	end,
+
+	get_cargo = function(pos)
+		local nvm = techage.get_nvm(pos)
+		local data = nvm.liquid
+		nvm.liquid = {}
+		return data
+	end,
+
+	has_cargo = function(pos)
+		return not techage.liquid.is_empty(pos)
+	end,
+
+	on_timer = node_timer,
+	on_rightclick = on_rightclick,
+})
+
+techage.register_node({"techage:tank_cart"}, techage.liquid.recv_message)
+
+liquid.register_nodes({"techage:tank_cart"},
+	Pipe, "tank", {"U"}, {
+		capa = CAPACITY,
+		peek = peek_liquid,
+		put = put_liquid,
+		take = take_liquid,
+		untake = untake_liquid,
+	}
+)
+
+minecart.register_cart_entity("techage:tank_cart_entity", "techage:tank_cart", "tank", {
+	initial_properties = {
+		physical = false,
+		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+		visual = "wielditem",
+		textures = {"techage:tank_cart"},
+		visual_size = {x=0.66, y=0.66, z=0.66},
+		static_save = false,
+	},
+	only_dig_if_empty  = 1,
+})
+
+minetest.register_craft({
+	output = "techage:tank_cart",
+	recipe = {
+			{"default:junglewood", "techage:ta3_tank", "default:junglewood"},
+			{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
+		},
+})