From 4bd06723b476bf8c3ef415d690aaf0fbed44f461 Mon Sep 17 00:00:00 2001
From: kay27 <kay27@bk.ru>
Date: Mon, 14 Mar 2022 20:46:12 +0400
Subject: [PATCH] Add mcl_info HUD to display current biome

---
 mods/HUD/mcl_info/init.lua              | 105 ++++++++++++++++++++++++
 mods/HUD/mcl_info/locale/mcl_info.ru.tr |   4 +
 mods/HUD/mcl_info/locale/template.txt   |   4 +
 mods/HUD/mcl_info/mod.conf              |   3 +
 4 files changed, 116 insertions(+)
 create mode 100644 mods/HUD/mcl_info/init.lua
 create mode 100644 mods/HUD/mcl_info/locale/mcl_info.ru.tr
 create mode 100644 mods/HUD/mcl_info/locale/template.txt
 create mode 100644 mods/HUD/mcl_info/mod.conf

diff --git a/mods/HUD/mcl_info/init.lua b/mods/HUD/mcl_info/init.lua
new file mode 100644
index 000000000..02af53fbc
--- /dev/null
+++ b/mods/HUD/mcl_info/init.lua
@@ -0,0 +1,105 @@
+local refresh_interval      = .63
+local huds                  = {}
+local default_debug         = 3
+local after                 = minetest.after
+local get_connected_players = minetest.get_connected_players
+local get_biome_name        = minetest.get_biome_name
+local get_biome_data        = minetest.get_biome_data
+local format                = string.format
+
+local min1, min2, min3 = mcl_mapgen.overworld.min, mcl_mapgen.end_.min, mcl_mapgen.nether.min
+local max1, max2, max3 = mcl_mapgen.overworld.max, mcl_mapgen.end_.max, mcl_mapgen.nether.max + 128
+
+local modname = minetest.get_current_modname()
+local modpath = minetest.get_modpath(modname)
+local S = minetest.get_translator(modname)
+local storage = minetest.get_mod_storage()
+local player_dbg = minetest.deserialize(storage:get_string("player_dbg") or "return {}") or {}
+
+local function get_text(pos, bits)
+	local bits = bits
+	if bits == 0 then return "" end
+	local y = pos.y
+	if y >= min1 then
+		y = y - min1
+	elseif y >= min3 and y <= max3 then
+		y = y - min3
+	elseif y >= min2 and y <= max2 then
+		y = y - min2
+	end
+	local biome_data = get_biome_data(pos)
+	local biome_name = biome_data and get_biome_name(biome_data.biome) or "No biome"
+	local text
+	if bits == 1 then
+		text = biome_name
+	elseif bits == 2 then
+		text = format("x:%.1f y:%.1f z:%.1f", pos.x, y, pos.z)
+	elseif bits == 3 then
+		text = format("%s x:%.1f y:%.1f z:%.1f", biome_name, pos.x, y, pos.z)
+	end
+	return text
+end
+
+local function info()
+	for _, player in pairs(get_connected_players()) do
+		local name = player:get_player_name()
+		local pos = player:get_pos()
+		local text = get_text(pos, player_dbg[name] or default_debug)
+		local hud = huds[name]
+		if not hud then
+			local def = {
+				hud_elem_type = "text",
+				alignment     = {x = 1, y = -1},
+				scale         = {x = 100, y = 100},
+				position      = {x = 0.0073, y = 0.989},
+				text          = text,
+				style         = 5,
+				["number"]    = 0xcccac0,
+				z_index       = 0,
+			}
+			local def_bg = table.copy(def)
+			def_bg.offset = {x = 2, y = 1}
+			def_bg["number"] = 0
+			def_bg.z_index = -1
+			huds[name] = {
+				player:hud_add(def),
+				player:hud_add(def_bg),
+				text,
+			}
+		elseif text ~= hud[3] then
+			hud[3] = text
+			player:hud_change(huds[name][1], "text", text)
+			player:hud_change(huds[name][2], "text", text)
+		end
+	end
+	after(refresh_interval, info)
+end
+
+minetest.register_on_authplayer(function(name, ip, is_success)
+	if is_success then
+		huds[name] = nil
+	end
+end)
+
+minetest.register_chatcommand("debug",{
+	description = S("Set debug bit mask: 0 = disable, 1 = biome name, 2 = coordinates, 3 = all"),
+	func = function(name, params)
+		local dbg = math.floor(tonumber(params) or default_debug)
+		if dbg < 0 or dbg > 3 then
+			minetest.chat_send_player(name, S("Error! Possible values are integer numbers from @1 to @2", 0, 3))
+			return
+		end
+		if dbg == default_dbg then
+			player_dbg[name] = nil
+		else
+			player_dbg[name] = dbg
+		end
+		minetest.chat_send_player(name, S("Debug bit mask set to @1", dbg))
+	end
+})
+
+minetest.register_on_shutdown(function()
+	storage:set_string("player_dbg", minetest.serialize(player_dbg))
+end)
+
+info()
diff --git a/mods/HUD/mcl_info/locale/mcl_info.ru.tr b/mods/HUD/mcl_info/locale/mcl_info.ru.tr
new file mode 100644
index 000000000..7f5b79fe1
--- /dev/null
+++ b/mods/HUD/mcl_info/locale/mcl_info.ru.tr
@@ -0,0 +1,4 @@
+# textdomain: mcl_info
+Set debug bit mask: 0 @= disable, 1 @= biome name, 2 @= coordinates, 3 @= all=Установка отладочной битовой маски: 0 @= отключить, 1 @= биом, 2 @= координаты, 3 @= всё
+Error! Possible values are integer numbers from @1 to @2=Ошибка! Допустимые значения - целые числа от @1 до @2
+Debug bit mask set to @1=Отладочной битовой маске присвоено значение @1
diff --git a/mods/HUD/mcl_info/locale/template.txt b/mods/HUD/mcl_info/locale/template.txt
new file mode 100644
index 000000000..1a0b70ebc
--- /dev/null
+++ b/mods/HUD/mcl_info/locale/template.txt
@@ -0,0 +1,4 @@
+# textdomain: mcl_info
+Set debug bit mask: 0 @= disable, 1 @= biome name, 2 @= coordinates, 3 @= all=
+Error! Possible values are integer numbers from @1 to @2=
+Debug bit mask set to @1=
diff --git a/mods/HUD/mcl_info/mod.conf b/mods/HUD/mcl_info/mod.conf
new file mode 100644
index 000000000..da3e10fff
--- /dev/null
+++ b/mods/HUD/mcl_info/mod.conf
@@ -0,0 +1,3 @@
+name = mcl_info
+description = Prints biome name and player position
+optional_depends = mcl_mapgen