From 43acec290067f9aca534647d46ba1f13cfeb377a Mon Sep 17 00:00:00 2001
From: TechDudie <73961295+TechDudie@users.noreply.github.com>
Date: Tue, 09 Feb 2021 19:03:55 +0100
Subject: [PATCH] Add Rubber Goo as replacement for the grinder (#578)

---
 technic/machines/HV/quarry.lua |  353 ++++++++++++++++++++++++++++++++++++----------------------
 1 files changed, 217 insertions(+), 136 deletions(-)

diff --git a/technic/machines/HV/quarry.lua b/technic/machines/HV/quarry.lua
index 09421de..9cf378f 100644
--- a/technic/machines/HV/quarry.lua
+++ b/technic/machines/HV/quarry.lua
@@ -1,193 +1,274 @@
 
 local S = technic.getter
 
+local tube_entry = "^pipeworks_tube_connection_metallic.png"
+local cable_entry = "^technic_cable_connection_overlay.png"
+
 minetest.register_craft({
 	recipe = {
-		{"technic:carbon_steel_block", "pipeworks:filter",           "technic:carbon_steel_block"},
-		{"technic:motor",              "technic:machine_casing",     "technic:carbon_steel_block"},
-		{"technic:carbon_steel_block", "technic:diamond_drill_head", "technic:carbon_steel_block"}},
+		{"technic:carbon_plate",       "pipeworks:filter",       "technic:composite_plate"},
+		{"basic_materials:motor",              "technic:machine_casing", "technic:diamond_drill_head"},
+		{"technic:carbon_steel_block", "technic:hv_cable",       "technic:carbon_steel_block"}},
 	output = "technic:quarry",
 })
 
 local quarry_dig_above_nodes = 3 -- How far above the quarry we will dig nodes
 local quarry_max_depth       = 100
+local quarry_demand = 10000
+local quarry_eject_dir = vector.new(0, 1, 0)
 
 local function set_quarry_formspec(meta)
-	local formspec = "size[3,1.5]"..
-		"field[1,0.5;2,1;size;Radius;"..meta:get_int("size").."]"
+	local radius = meta:get_int("size")
+	local formspec = "size[6,4.3]"..
+		"list[context;cache;0,1;4,3;]"..
+		"item_image[4.8,0;1,1;technic:quarry]"..
+		"label[0,0.2;"..S("%s Quarry"):format("HV").."]"..
+		"field[4.3,3.5;2,1;size;"..S("Radius:")..";"..radius.."]"
 	if meta:get_int("enabled") == 0 then
-		formspec = formspec.."button[0,1;3,1;enable;"..S("%s Disabled"):format(S("%s Quarry"):format("HV")).."]"
+		formspec = formspec.."button[4,1;2,1;enable;"..S("Disabled").."]"
 	else
-		formspec = formspec.."button[0,1;3,1;disable;"..S("%s Enabled"):format(S("%s Quarry"):format("HV")).."]"
+		formspec = formspec.."button[4,1;2,1;disable;"..S("Enabled").."]"
 	end
+	local diameter = radius*2 + 1
+	local nd = meta:get_int("dug")
+	local rel_y = quarry_dig_above_nodes - math.floor(nd / (diameter*diameter))
+	formspec = formspec.."label[0,4;"..minetest.formspec_escape(
+			nd == 0 and S("Digging not started") or
+			(rel_y < -quarry_max_depth and S("Digging finished") or
+				(meta:get_int("purge_on") == 1 and S("Purging cache") or
+				S("Digging %d m "..(rel_y > 0 and "above" or "below").." machine")
+					:format(math.abs(rel_y))))
+			).."]"
+	formspec = formspec.."button[4,2;2,1;restart;"..S("Restart").."]"
 	meta:set_string("formspec", formspec)
 end
 
+local function set_quarry_demand(meta)
+	local radius = meta:get_int("size")
+	local diameter = radius*2 + 1
+	local machine_name = S("%s Quarry"):format("HV")
+	if meta:get_int("enabled") == 0 or meta:get_int("purge_on") == 1 then
+		meta:set_string("infotext", S(meta:get_int("purge_on") == 1 and "%s purging cache" or "%s Disabled"):format(machine_name))
+		meta:set_int("HV_EU_demand", 0)
+	elseif meta:get_int("dug") == diameter*diameter * (quarry_dig_above_nodes+1+quarry_max_depth) then
+		meta:set_string("infotext", S("%s Finished"):format(machine_name))
+		meta:set_int("HV_EU_demand", 0)
+	else
+		meta:set_string("infotext", S(meta:get_int("HV_EU_input") >= quarry_demand and "%s Active" or "%s Unpowered"):format(machine_name))
+		meta:set_int("HV_EU_demand", quarry_demand)
+	end
+end
+
 local function quarry_receive_fields(pos, formname, fields, sender)
+	local player_name = sender:get_player_name()
+	if minetest.is_protected(pos, player_name) then
+		minetest.chat_send_player(player_name, "You are not allowed to edit this!")
+		minetest.record_protection_violation(pos, player_name)
+		return
+	end
 	local meta = minetest.get_meta(pos)
-	if fields.size then
-		local size = tonumber(fields.size) or 0
-		size = math.max(size, 2)
-		size = math.min(size, 8)
-		meta:set_int("size", size)
+	if fields.size and string.find(fields.size, "^[0-9]+$") then
+		local size = tonumber(fields.size)
+		if size >= 2 and size <= 8 and size ~= meta:get_int("size") then
+			meta:set_int("size", size)
+			meta:set_int("dug", 0)
+		end
 	end
 	if fields.enable then meta:set_int("enabled", 1) end
 	if fields.disable then meta:set_int("enabled", 0) end
+	if fields.restart then
+		meta:set_int("dug", 0)
+		meta:set_int("purge_on", 1)
+	end
 	set_quarry_formspec(meta)
+	set_quarry_demand(meta)
 end
 
-local function get_quarry_center(pos, size)
-	local node     = minetest.get_node(pos)
-	local back_dir = minetest.facedir_to_dir(node.param2)
-	local relative_center = vector.multiply(back_dir, size + 1)
-	local center = vector.add(pos, relative_center)
-	return center
-end
-
-local function gen_next_digpos(center, digpos, size)
-	digpos.x = digpos.x + 1
-	if digpos.x > center.x + size then
-		digpos.x = center.x - size
-		digpos.z = digpos.z + 1
-	end
-	if digpos.z > center.z + size then
-		digpos.x = center.x - size
-		digpos.z = center.z - size
-		digpos.y = digpos.y - 1
-	end
-end
-
-local function find_next_digpos(data, area, center, dig_y, size)
-	local c_air = minetest.get_content_id("air")
-
-	for y = center.y + quarry_dig_above_nodes, dig_y - 1, -1 do
-	for z = center.z - size, center.z + size do
-	for x = center.x - size, center.x + size do
-		if data[area:index(x, y, z)] ~= c_air then
-			return vector.new(x, y, z)
-		end
-	end
-	end
-	end
-end
-
-local function quarry_dig(pos, center, size)
+local function quarry_handle_purge(pos)
 	local meta = minetest.get_meta(pos)
-	local drops = {}
-	local dig_y = meta:get_int("dig_y")
-	local owner = meta:get_string("owner")
-
-	local vm = VoxelManip()
-	local p1 = vector.new(
-			center.x - size,
-			center.y + quarry_dig_above_nodes,
-			center.z - size)
-	local p2 = vector.new(
-			center.x + size,
-			dig_y - 1, -- One node lower in case we have finished the current layer
-			center.z + size)
-	local e1, e2 = vm:read_from_map(p1, p2)
-	local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2})
-	local data = vm:get_data()
-
-	local digpos = find_next_digpos(data, area, center, dig_y, size)
-
-	if digpos then
-		if digpos.y < pos.y - quarry_max_depth then
-			meta:set_int("dig_y", digpos.y)
-			return drops
+	local inv = meta:get_inventory()
+	local i = 0
+	for _,stack in ipairs(inv:get_list("cache")) do
+		i = i + 1
+		if stack then
+			local item = stack:to_table()
+			if item then
+				technic.tube_inject_item(pos, pos, quarry_eject_dir, item)
+				stack:clear()
+				inv:set_stack("cache", i, stack)
+				break
+			end
 		end
-		if minetest.is_protected and minetest.is_protected(digpos, owner) then
-			meta:set_int("enabled", 0)
-			set_quarry_formspec(meta)
-			return {}
-		end
-		dig_y = digpos.y
-		local node = minetest.get_node(digpos)
-		local node_def = minetest.registered_nodes[node.name] or { diggable = false }
-		if node_def.diggable and ((not node_def.can_dig) or node_def.can_dig(digpos, nil)) then
-			minetest.remove_node(digpos)
-			drops = minetest.get_node_drops(node.name, "")
-		end
-	elseif not (dig_y < pos.y - quarry_max_depth) then
-		dig_y = dig_y - 16
 	end
-
-	meta:set_int("dig_y", dig_y)
-	return drops
+	if inv:is_empty("cache") then
+		meta:set_int("purge_on", 0)
+	end
 end
 
-local function send_items(items, pos, node)
-	for _, item in pairs(items) do
-		local tube_item = pipeworks.tube_item(vector.new(pos), item)
-		tube_item:get_luaentity().start_pos = vector.new(pos)
-		tube_item:setvelocity(vector.new(0, 1, 0))
-		tube_item:setacceleration({x=0, y=0, z=0})
+local function quarry_run(pos, node)
+	local meta = minetest.get_meta(pos)
+	local inv = meta:get_inventory()
+	-- initialize cache for the case we load an older world
+	inv:set_size("cache", 12)
+	-- toss a coin whether we do an automatic purge. Chance 1:200
+	local purge_rand = math.random()
+	if purge_rand <= 0.005 then
+		meta:set_int("purge_on", 1)
 	end
+
+	if meta:get_int("enabled") and meta:get_int("HV_EU_input") >= quarry_demand and meta:get_int("purge_on") == 0 then
+		local pdir = minetest.facedir_to_dir(node.param2)
+		if pdir.y ~= 0 then
+			-- faces up or down, not valid, otherwise depth-check would run endless and hang up the server
+			return
+		end
+
+		local qdir = pdir.x == 1 and vector.new(0,0,-1) or
+			(pdir.z == -1 and vector.new(-1,0,0) or
+			(pdir.x == -1 and vector.new(0,0,1) or
+			vector.new(1,0,0)))
+		local radius = meta:get_int("size")
+		local diameter = radius*2 + 1
+		local startpos = vector.add(vector.add(vector.add(pos,
+			vector.new(0, quarry_dig_above_nodes, 0)),
+			pdir),
+			vector.multiply(qdir, -radius))
+		local owner = meta:get_string("owner")
+		local nd = meta:get_int("dug")
+		while nd < diameter*diameter * (quarry_dig_above_nodes+1+quarry_max_depth) do
+			local ry = math.floor(nd / (diameter*diameter))
+			local ndl = nd % (diameter*diameter)
+			if ry % 2 == 1 then
+				ndl = diameter*diameter - 1 - ndl
+			end
+			local rq = math.floor(ndl / diameter)
+			local rp = ndl % diameter
+			if rq % 2 == 1 then rp = diameter - 1 - rp end
+			local digpos = vector.add(vector.add(vector.add(startpos,
+				vector.new(0, -ry, 0)),
+				vector.multiply(pdir, rp)),
+				vector.multiply(qdir, rq))
+			local can_dig = true
+			if can_dig and minetest.is_protected and minetest.is_protected(digpos, owner) then
+				can_dig = false
+			end
+			local dignode
+			if can_dig then
+				dignode = technic.get_or_load_node(digpos) or minetest.get_node(digpos)
+				local dignodedef = minetest.registered_nodes[dignode.name] or {diggable=false}
+				-- doors mod among other thing does NOT like a nil digger...
+				local fakedigger = pipeworks.create_fake_player({
+					name = owner
+				})
+				if not dignodedef.diggable or (dignodedef.can_dig and not dignodedef.can_dig(digpos, fakedigger)) then
+					can_dig = false
+				end
+			end
+
+			if can_dig then
+				for ay = startpos.y, digpos.y+1, -1 do
+					local checkpos = {x=digpos.x, y=ay, z=digpos.z}
+					local checknode = technic.get_or_load_node(checkpos) or minetest.get_node(checkpos)
+					if checknode.name ~= "air" then
+						can_dig = false
+						break
+					end
+				end
+			end
+			nd = nd + 1
+			if can_dig then
+				minetest.remove_node(digpos)
+				local drops = minetest.get_node_drops(dignode.name, "")
+				for _, dropped_item in ipairs(drops) do
+					local left = inv:add_item("cache", dropped_item)
+					while not left:is_empty() do
+						meta:set_int("purge_on", 1)
+						quarry_handle_purge(pos)
+						left = inv:add_item("cache", left)
+					end
+				end
+				break
+			end
+		end
+		if nd == diameter*diameter * (quarry_dig_above_nodes+1+quarry_max_depth) then
+			-- if a quarry is finished, we enable purge mode
+			meta:set_int("purge_on", 1)
+		end
+		meta:set_int("dug", nd)
+	else
+		-- if a quarry is disabled or has no power, we enable purge mode
+		meta:set_int("purge_on", 1)
+	end
+	-- if something triggered a purge, we handle it
+	if meta:get_int("purge_on") == 1 then
+		quarry_handle_purge(pos)
+	end
+	set_quarry_formspec(meta)
+	set_quarry_demand(meta)
+end
+
+local function send_move_error(player)
+	minetest.chat_send_player(player:get_player_name(),
+		S("Manually taking/removing from cache by hand is not possible. "..
+		"If you can't wait, restart or disable the quarry to start automatic purge."))
+	return 0
 end
 
 minetest.register_node("technic:quarry", {
 	description = S("%s Quarry"):format("HV"),
-	tiles = {"technic_carbon_steel_block.png", "technic_carbon_steel_block.png",
-	         "technic_carbon_steel_block.png", "technic_carbon_steel_block.png",
-	         "technic_carbon_steel_block.png^default_tool_mesepick.png", "technic_carbon_steel_block.png"},
+	tiles = {
+		"technic_carbon_steel_block.png"..tube_entry,
+		"technic_carbon_steel_block.png"..cable_entry,
+		"technic_carbon_steel_block.png"..cable_entry,
+		"technic_carbon_steel_block.png"..cable_entry,
+		"technic_carbon_steel_block.png^default_tool_mesepick.png",
+		"technic_carbon_steel_block.png"..cable_entry
+	},
 	paramtype2 = "facedir",
-	groups = {cracky=2, tubedevice=1},
+	groups = {cracky=2, tubedevice=1, technic_machine=1, technic_hv=1},
+	connect_sides = {"bottom", "front", "left", "right"},
 	tube = {
 		connect_sides = {top = 1},
+		-- lower priority than other tubes, so that quarries will prefer any
+		-- other tube to another quarry, which could lead to server freezes
+		-- in certain quarry placements (2x2 for example would never eject)
+		priority = 10,
+		can_go = function(pos, node, velocity, stack)
+			-- always eject the same, even if items came in another way
+			-- this further mitigates loops and generally avoids random sideway movement
+			-- that can be expected in certain quarry placements
+			return { quarry_eject_dir }
+		end
 	},
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("infotext", S("%s Quarry"):format("HV"))
 		meta:set_int("size", 4)
 		set_quarry_formspec(meta)
-		meta:set_int("dig_y", pos.y)
+		set_quarry_demand(meta)
 	end,
 	after_place_node = function(pos, placer, itemstack)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("owner", placer:get_player_name())
 		pipeworks.scan_for_tube_objects(pos)
 	end,
+	can_dig = function(pos,player)
+		local meta = minetest.get_meta(pos);
+		local inv = meta:get_inventory()
+		return inv:is_empty("cache")
+	end,
 	after_dig_node = pipeworks.scan_for_tube_objects,
 	on_receive_fields = quarry_receive_fields,
-})
-
-minetest.register_abm({
-	nodenames = {"technic:quarry"},
-	interval = 1,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local meta = minetest.get_meta(pos)
-		local size = meta:get_int("size")
-		local eu_input = meta:get_int("HV_EU_input")
-		local demand = 10000
-		local center = get_quarry_center(pos, size)
-		local dig_y = meta:get_int("dig_y")
-		local machine_name = S("%s Quarry"):format("HV")
-
-		technic.switching_station_timeout_count(pos, "HV")
-
-		if meta:get_int("enabled") == 0 then
-			meta:set_string("infotext", S("%s Disabled"):format(machine_name))
-			meta:set_int("HV_EU_demand", 0)
-			return
-		end
-
-		if eu_input < demand then
-			meta:set_string("infotext", S("%s Unpowered"):format(machine_name))
-		elseif eu_input >= demand then
-			meta:set_string("infotext", S("%s Active"):format(machine_name))
-
-			local items = quarry_dig(pos, center, size)
-			send_items(items, pos, node)
-
-			if dig_y < pos.y - quarry_max_depth then
-				meta:set_string("infotext", S("%s Finished"):format(machine_name))
-			end
-		end
-		meta:set_int("HV_EU_demand", demand)
+	technic_run = quarry_run,
+	allow_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
+		return send_move_error(player)
+	end,
+	allow_metadata_inventory_put = function(pos, listname, index, stack, player)
+		return send_move_error(player)
+	end,
+	allow_metadata_inventory_take = function(pos, listname, index, stack, player)
+		return send_move_error(player)
 	end
 })
 
 technic.register_machine("HV", "technic:quarry", technic.receiver)
-

--
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