140 lines
4.6 KiB
Lua
140 lines
4.6 KiB
Lua
--[[
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Minecart
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========
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Copyright (C) 2019-2021 Joachim Stolberg
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MIT
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See license.txt for more information
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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 = minecart.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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function minecart.get_nodecart_nearby(pos, param2, radius)
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local pos2 = param2 and vector.add(pos, minecart.param2_to_dir(param2)) or pos
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local pos3 = minetest.find_node_near(pos2, radius or 0.5, minecart.lCartNodeNames, true)
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if pos3 then
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return pos3, minetest.get_node(pos3)
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end
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end
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-- Convert node to entity and start cart
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function minecart.start_nodecart(pos, node_name, puncher, punch_dir)
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local owner = M(pos):get_string("owner")
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local userID = M(pos):get_int("userID")
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-- check if valid cart
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if not minecart.monitoring_valid_cart(owner, userID, pos, node_name) then
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--print("invalid cart", owner, userID, P2S(pos), node_name)
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M(pos):set_string("infotext",
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minetest.get_color_escape_sequence("#FFFF00") .. owner .. ": 0")
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return
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end
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-- Only the owner or a noplayer can start the cart, but owner has to be online
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if minecart.is_owner(puncher, owner) and minetest.get_player_by_name(owner) and
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userID ~= 0 then
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local entity_name = minecart.tNodeNames[node_name]
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local obj = minecart.node_to_entity(pos, node_name, entity_name)
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if obj then
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local entity = obj:get_luaentity()
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if puncher then
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local yaw = puncher:get_look_horizontal()
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entity.object:set_rotation({x = 0, y = yaw, z = 0})
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elseif punch_dir then
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local yaw = minetest.dir_to_yaw(punch_dir)
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entity.object:set_rotation({x = 0, y = yaw, z = 0})
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end
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minecart.start_entitycart(entity, pos)
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end
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end
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end
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function minecart.show_formspec(pos, clicker)
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local owner = M(pos):get_string("owner")
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if minecart.is_owner(clicker, owner) then
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clicker:get_meta():set_string("cart_pos", P2S(pos))
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minetest.show_formspec(owner, "minecart:userID_node",
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"size[4,3]" ..
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"label[0,0;" .. S("Enter cart number") .. ":]" ..
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"field[1,1;3,1;userID;;]" ..
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"button_exit[1,2;2,1;exit;" .. S("Save") .. "]")
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end
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end
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-- Player places the node
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function minecart.on_nodecart_place(itemstack, placer, pointed_thing)
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local node_name = itemstack:get_name()
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local param2 = minetest.dir_to_facedir(placer:get_look_dir())
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local owner = placer:get_player_name()
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-- Add node
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if minecart.is_rail(pointed_thing.under) then
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minecart.add_nodecart(pointed_thing.under, node_name, param2, {}, owner, 0)
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placer:get_meta():set_string("cart_pos", P2S(pointed_thing.under))
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minecart.show_formspec(pointed_thing.under, placer)
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elseif minecart.is_rail(pointed_thing.above) then
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minecart.add_nodecart(pointed_thing.above, node_name, param2, {}, owner, 0)
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placer:get_meta():set_string("cart_pos", P2S(pointed_thing.above))
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minecart.show_formspec(pointed_thing.above, placer)
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else
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return itemstack
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end
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minetest.sound_play({name = "default_place_node_metal", gain = 0.5},
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{pos = pointed_thing.above})
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if not (creative and creative.is_enabled_for
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and creative.is_enabled_for(placer:get_player_name())) then
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itemstack:take_item()
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end
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return itemstack
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end
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-- Start the node cart (or dig by shift+leftclick)
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function minecart.on_nodecart_punch(pos, node, puncher, pointed_thing)
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--print("on_nodecart_punch")
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local owner = M(pos):get_string("owner")
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local userID = M(pos):get_int("userID")
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if minecart.is_owner(puncher, owner) then
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if puncher:get_player_control().sneak then
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local ndef = minetest.registered_nodes[node.name]
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if not ndef.has_cargo or not ndef.has_cargo(pos) then
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minecart.remove_nodecart(pos)
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minecart.add_node_to_player_inventory(pos, puncher, node.name)
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minecart.monitoring_remove_cart(owner, userID)
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end
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else
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minecart.start_nodecart(pos, node.name, puncher)
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end
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end
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end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
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if formname == "minecart:userID_node" then
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if fields.exit or fields.key_enter == "true" then
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local cart_pos = S2P(player:get_meta():get_string("cart_pos"))
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local owner = M(cart_pos):get_string("owner")
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if minecart.is_owner(player, owner) then
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local userID = tonumber(fields.userID) or 0
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if minecart.userID_available(owner, userID) then
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M(cart_pos):set_int("userID", userID)
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M(cart_pos):set_string("infotext",
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minetest.get_color_escape_sequence("#FFFF00") ..
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player:get_player_name() .. ": " .. userID)
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local node = minetest.get_node(cart_pos)
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local entity_name = minecart.tNodeNames[node.name]
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minecart.monitoring_add_cart(owner, userID, cart_pos, node.name, entity_name)
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end
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end
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end
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return true
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end
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return false
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end)
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