Replaced Minetest's built-in health and breath bar for our own (#48)

* Replaced Minetest's built-in health and breath bar for our own

mods/default/furnace.lua

@@ -6,6 +6,7 @@
 local function active_formspec(fuel_percent, item_percent)
 	local formspec =
 		"size[9,8.5]"..
+		"bgcolor[#080808BB;true]" ..
 		"background[0,0;1,1;gui_formbg.png;true]" ..
 		"label[4,0;Furnace]" ..
 		"list[current_name;src;3.5,0.5;1,1;]"..
@@ -27,6 +28,7 @@ end
 
 local inactive_formspec =
 	"size[9,8.5]"..
+	"bgcolor[#080808BB;true]" ..
 	"background[0,0;1,1;gui_formbg.png;true]" ..
 	"label[4,0;Furnace]" ..
 	"list[current_name;src;3.5,0.5;1,1;]"..

mods/default/init.lua

@@ -11,6 +11,12 @@ default.LIGHT_MAX = 14
 -- Load files
 local default_path = minetest.get_modpath("default")
 
+default.players = {}
+
+minetest.register_on_joinplayer(function(player)
+	default.players[player:get_player_name()] = player
+end)
+
 dofile(default_path.."/functions.lua")
 dofile(default_path.."/trees.lua")
 dofile(default_path.."/nodes.lua")

mods/default/mapgen.lua

@@ -7,6 +7,7 @@ minetest.register_alias("mapgen_dirt", "default:dirt")
 minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
 minetest.register_alias("mapgen_sand", "default:sand")
 minetest.register_alias("mapgen_water_source", "default:water_source")
+minetest.register_alias("mapgen_river_water_source", "default:water_source")
 minetest.register_alias("mapgen_lava_source", "default:lava_source")
 minetest.register_alias("mapgen_gravel", "default:gravel")
 minetest.register_alias("mapgen_dirt_with_snow", "default:dirt_with_snow")

mods/default/nodes.lua

@@ -1587,6 +1587,7 @@ minetest.register_node("default:crafting_table", {
 	on_rightclick = function(pos, node, clicker, itemstack)
 		minetest.show_formspec(clicker:get_player_name(), "default:crafting_table",
 		"size[9,8.5;]" ..
+		"bgcolor[#080808BB;true]" ..
 		"background[0,0;9,8.5;gui_formbg.png;true]" ..
 		"label[4,0;Crafting]" ..
 		"list[current_player;craft;2,0.5;3,3;]" ..
@@ -1602,6 +1603,7 @@ minetest.register_node("default:crafting_table", {
 -- Chest
 local chest_formspec =
 	"size[9,8.5]" ..
+	"bgcolor[#080808BB;true]" ..
 	"background[5,5;1,1;gui_formbg.png;true]" ..
 	"label[0,-0.1;Chest]" ..
 	"list[current_name;main;0,0.3;9,3;]" ..
@@ -1613,6 +1615,7 @@ local function get_locked_chest_formspec(pos)
 	local spos = pos.x .. "," .. pos.y .. "," .. pos.z
 	local formspec =
 		"size[9,8.5]" ..
+		"bgcolor[#080808BB;true]" ..
 		"background[5,5;1,1;gui_formbg.png;true]" ..
 		"label[0,-0.1;Chest]" ..
 		"list[nodemeta:" .. spos .. ";main;0,0.3;9,3;]" ..

mods/interface/hud.lua

@@ -0,0 +1,45 @@
+interface.createHud = function(player)
+	-- Hide built-in hud bars, so we can customize them to our likings instead
+	local hud_flags = player:hud_get_flags()
+	hud_flags.healthbar = false
+	hud_flags.breathbar = false
+	player:hud_set_flags(hud_flags)
+
+	local health_hud = player:hud_add({
+		hud_elem_type = "statbar",
+		position = {x = 0.5, y = 1},
+		size = {x = 24, y = 24},
+		text = "heart.png",
+		number = player:get_hp(),
+		offset = {x = -260, y = -90}
+	})
+
+	local breath_hud = player:hud_add({
+		hud_elem_type = "statbar",
+		direction = 1,
+		position = {x = 0.5, y = 1},
+		size = {x = 24, y = 24},
+		text = "bubble.png",
+		number = 0, --We'll set it to the proper value in the coming tick
+		alignment = {x = 0, y = 1},
+		offset = {x = 230, y = -90}
+	})
+
+	local timer = 0
+	minetest.register_globalstep(function(dtime)
+		timer = timer + dtime
+
+		if timer > 0.5 then --Only update hud every half a second
+			timer = 0
+			for name, player in pairs(default.players) do
+				player:hud_change(health_hud, text, player:get_hp())
+
+				if player:get_breath() == 11 then
+					player:hud_change(breath_hud, text, 0)
+				else
+					player:hud_change(breath_hud, text, player:get_breath() * 2) --Minetest only uses 10 units for breath instead of 20
+				end
+			end
+		end
+	end)
+end

mods/interface/init.lua

@@ -58,8 +58,10 @@ local startIndex = 0
 
 dofile(minetest.get_modpath("interface") .. "/survival.lua")
 dofile(minetest.get_modpath("interface") .. "/creative.lua")
+dofile(minetest.get_modpath("interface") .. "/hud.lua")
 
 local creative_mode = minetest.setting_getbool("creative_mode")
+local damage_enabled = minetest.setting_getbool("enable_damage")
 
 minetest.register_on_joinplayer(function(player)
 	player.hud_set_hotbar_itemcount(player, 9)
@@ -69,11 +71,13 @@ minetest.register_on_joinplayer(function(player)
 	if not creative_mode then
 		interface.createSurvivalInventory(player)
 	else
-		player:get_inventory():set_size("main", 9*4)
+		player:get_inventory():set_size("main", 9 * 4)
 
 		interface.initializeCreativeInventory(player)
 		interface.fillCreativeInventory(player, "building")
 		interface.createCreativeInventory(player, "building", 0, 0)
+
+		interface.createHud(player)
 	end
 end)
 

mods/interface/survival.lua

@@ -2,13 +2,14 @@ interface.createSurvivalInventory = function(player)
 	local inventory = minetest.get_inventory({type="detached", name="survival"})
 
 	local formspec = "size[9,8.5]"..
-				"background[0,0;9,8.5;gui_formbg.png;true]" ..
-				"label[5,0.1;Crafting]" ..
-				"list[current_player;craft;5,0.5;2,2;]"..
-				"image[7,1;1,1;gui_furnace_arrow_bg.png^[transformR270]" ..
-				"list[current_player;craftpreview;8,1;1,1;]"..
-				"list[current_player;main;0,4.25;9,3;9]" ..
-				"list[current_player;main;0,7.50;9,1;]"
+		"bgcolor[#080808BB;true]" ..
+		"background[0,0;9,8.5;gui_formbg.png;true]" ..
+		"label[5,0.1;Crafting]" ..
+		"list[current_player;craft;5,0.5;2,2;]"..
+		"image[7,1;1,1;gui_furnace_arrow_bg.png^[transformR270]" ..
+		"list[current_player;craftpreview;8,1;1,1;]"..
+		"list[current_player;main;0,4.25;9,3;9]" ..
+		"list[current_player;main;0,7.50;9,1;]"
 
 	player:set_inventory_formspec(formspec)
 end