240 lines
7.4 KiB
Lua
240 lines
7.4 KiB
Lua
--[[
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TechAge
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=======
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Copyright (C) 2019-2020 Joachim Stolberg
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GPL v3
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See LICENSE.txt for more information
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Liquid lib
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]]--
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local M = minetest.get_meta
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local S = techage.S
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local P2S = minetest.pos_to_string
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local LQD = function(pos) return (minetest.registered_nodes[techage.get_node_lvm(pos).name] or {}).liquid end
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local BLOCKING_TIME = 0.3 -- 300ms
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techage.liquid = {}
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local LiquidDef = {}
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local IsLiquid = {}
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local ContainerDef = {}
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local function help(x, y)
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local tooltip = S("To add liquids punch\nthe tank\nwith a liquid container")
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return "label["..x..","..y..";"..minetest.colorize("#000000", minetest.formspec_escape("[?]")).."]"..
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"tooltip["..x..","..y..";0.5,0.5;"..tooltip..";#0C3D32;#FFFFFF]"
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end
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function techage.liquid.formspec(pos, nvm)
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local title = S("Liquid Tank")
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local itemname = "techage:liquid"
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if nvm.liquid and nvm.liquid.amount and nvm.liquid.amount > 0 and nvm.liquid.name then
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itemname = nvm.liquid.name.." "..nvm.liquid.amount
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end
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return "size[4,2]"..
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default.gui_bg..
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default.gui_bg_img..
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default.gui_slots..
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"box[0,-0.1;3.8,0.5;#c6e8ff]"..
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"label[1,-0.1;"..minetest.colorize("#000000", title).."]"..
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help(3.4, -0.1)..
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techage.item_image(1.5, 1, itemname)
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end
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function techage.liquid.is_empty(pos)
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local nvm = techage.get_nvm(pos)
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return not nvm.liquid or (nvm.liquid.amount or 0) == 0
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end
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techage.liquid.recv_message = {
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on_recv_message = function(pos, src, topic, payload)
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if topic == "load" then
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local nvm = techage.get_nvm(pos)
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return techage.power.percent(LQD(pos).capa, (nvm.liquid and nvm.liquid.amount) or 0)
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elseif topic == "size" then
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return LQD(pos).capa
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else
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return "unsupported"
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end
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end,
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}
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-- like: register_liquid("techage:ta3_barrel_oil", "techage:ta3_barrel_empty", 10, "techage:oil")
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function techage.register_liquid(full_container, empty_container, container_size, inv_item)
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LiquidDef[full_container] = {container = empty_container, size = container_size, inv_item = inv_item}
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ContainerDef[empty_container] = ContainerDef[empty_container] or {}
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ContainerDef[empty_container][inv_item] = full_container
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IsLiquid[inv_item] = true
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end
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local function get_liquid_def(full_container)
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return LiquidDef[full_container]
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end
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local function get_container_def(container_name)
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return ContainerDef[container_name]
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end
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local function is_container_empty(container_name)
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return ContainerDef[container_name]
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end
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local function get_full_container(empty_container, inv_item)
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return ContainerDef[empty_container] and ContainerDef[empty_container][inv_item]
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end
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-- used by filler
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local function fill_container(pos, inv, empty_container)
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local nvm = techage.get_nvm(pos)
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nvm.liquid = nvm.liquid or {}
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nvm.liquid.amount = nvm.liquid.amount or 0
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local full_container = get_full_container(empty_container, nvm.liquid.name)
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if empty_container and full_container then
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local ldef = get_liquid_def(full_container)
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if ldef and nvm.liquid.amount - ldef.size >= 0 then
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if inv:room_for_item("dst", {name = full_container}) then
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inv:add_item("dst", {name = full_container})
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nvm.liquid.amount = nvm.liquid.amount - ldef.size
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if nvm.liquid.amount == 0 then
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nvm.liquid.name = nil
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end
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return true
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end
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end
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end
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-- undo
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inv:add_item("src", {name = empty_container})
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return false
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end
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-- used by filler
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local function empty_container(pos, inv, full_container)
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local nvm = techage.get_nvm(pos)
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nvm.liquid = nvm.liquid or {}
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nvm.liquid.amount = nvm.liquid.amount or 0
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local ndef_lqd = LQD(pos)
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local tank_size = (ndef_lqd and ndef_lqd.capa) or 0
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local ldef = get_liquid_def(full_container)
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if ldef and (not nvm.liquid.name or ldef.inv_item == nvm.liquid.name) then
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if nvm.liquid.amount + ldef.size <= tank_size then
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if inv:room_for_item("dst", {name = ldef.container}) then
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inv:add_item("dst", {name = ldef.container})
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nvm.liquid.amount = nvm.liquid.amount + ldef.size
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nvm.liquid.name = ldef.inv_item
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return true
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end
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end
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end
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-- undo
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inv:add_item("src", {name = full_container})
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return false
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end
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-- check if the wielded empty container can be replaced by a full
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-- container and added to the players inventory
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local function fill_on_punch(nvm, empty_container, item_count, puncher)
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nvm.liquid = nvm.liquid or {}
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nvm.liquid.amount = nvm.liquid.amount or 0
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local full_container = get_full_container(empty_container, nvm.liquid.name)
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if empty_container and full_container then
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local item = {name = full_container}
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local ldef = get_liquid_def(full_container)
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if ldef and nvm.liquid.amount - ldef.size >= 0 then
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if item_count > 1 then -- can't be simply replaced?
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-- check for extra free space
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local inv = puncher:get_inventory()
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if inv:room_for_item("main", {name = full_container}) then
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-- add full container and return
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-- the empty once - 1
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inv:add_item("main", {name = full_container})
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item = {name = empty_container, count = item_count - 1}
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else
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return -- no free space
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end
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end
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nvm.liquid.amount = nvm.liquid.amount - ldef.size
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if nvm.liquid.amount == 0 then
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nvm.liquid.name = nil
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end
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return item -- to be added to the players inv.
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end
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elseif nvm.liquid.name and not IsLiquid[nvm.liquid.name] then
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if empty_container == "" then
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local count = math.max(nvm.liquid.amount, 99)
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local name = nvm.liquid.name
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nvm.liquid.amount = nvm.liquid.amount - count
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if nvm.liquid.amount == 0 then
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nvm.liquid.name = nil
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end
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return {name = name, count = count}
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end
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end
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end
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-- check of the wielded full container can be emptied into the tank
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local function empty_on_punch(pos, nvm, full_container, item_count)
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nvm.liquid = nvm.liquid or {}
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nvm.liquid.amount = nvm.liquid.amount or 0
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local lqd_def
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-- handle legacy items
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if IsLiquid[full_container] then
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lqd_def = {inv_item = full_container, size = (item_count or 1), container = ""}
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else
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lqd_def = get_liquid_def(full_container)
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end
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local ndef_lqd = LQD(pos)
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if lqd_def and ndef_lqd then
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local tank_size = ndef_lqd.capa or 0
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if not nvm.liquid.name or lqd_def.inv_item == nvm.liquid.name then
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if nvm.liquid.amount + lqd_def.size <= tank_size then
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nvm.liquid.amount = nvm.liquid.amount + lqd_def.size
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nvm.liquid.name = lqd_def.inv_item
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return {name = lqd_def.container}
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end
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end
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end
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end
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function techage.liquid.on_punch(pos, node, puncher, pointed_thing)
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local nvm = techage.get_nvm(pos)
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local mem = techage.get_mem(pos)
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mem.blocking_time = mem.blocking_time or 0
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if mem.blocking_time > techage.SystemTime then
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return
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end
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local wielded_item = puncher:get_wielded_item():get_name()
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local item_count = puncher:get_wielded_item():get_count()
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local new_item = fill_on_punch(nvm, wielded_item, item_count, puncher)
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or empty_on_punch(pos, nvm, wielded_item, item_count)
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if new_item then
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puncher:set_wielded_item(new_item)
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M(pos):set_string("formspec", techage.fuel.formspec(pos, nvm))
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mem.blocking_time = techage.SystemTime + BLOCKING_TIME
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return
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end
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end
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function techage.liquid.get_liquid_amount(nvm)
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if nvm.liquid and nvm.liquid.amount then
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return nvm.liquid.amount
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end
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return 0
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end
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techage.liquid.get_liquid_def = get_liquid_def
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techage.liquid.get_container_def = get_container_def
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techage.liquid.is_container_empty = is_container_empty
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techage.liquid.get_full_container = get_full_container
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techage.liquid.fill_container = fill_container
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techage.liquid.empty_container = empty_container
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techage.liquid.fill_on_punch = fill_on_punch
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techage.liquid.empty_on_punch = empty_on_punch
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