Implement remaining tools except speedometer

init.lua

@@ -1,3 +1,6 @@
+local orienteering = {}
+orienteering.playerhuds = {}
+
 -- Displays height (Y)
 minetest.register_tool("orienteering:altimeter", {
 	description = "Altimeter",
@@ -65,12 +68,101 @@ function update_automapper(player)
 	end
 end
 
-minetest.register_on_newplayer(function(player)
+function init_hud(player)
 	update_automapper(player)
-end)
+	local name = player:get_player_name()
+	orienteering.playerhuds[name] = {}
+	local tablenames = { "pos", "angles", "time", "speed" }
+	for i=1, #tablenames do
+		orienteering.playerhuds[name][tablenames[i]] = player:hud_add({
+			hud_elem_type = "text",
+			text = "",
+			position = { x = 0.5, y = 0.001 },
+			offset = { x = 0, y = 0+20*i },
+			alignment = { x = 0, y = 0 },
+			number = 0xFFFFFF,
+			scale= { x = 100, y = 20 },
+		})
+	end
+end
 
-minetest.register_on_joinplayer(function(player)
-	update_automapper(player)
+function update_hud_displays(player)
+	local inv = player:get_inventory()
+	local gps, altimeter, triangulator, compass, sextant, watch, speedometer
+	if inv:contains_item("main", "orienteering:gps") then
+		gps = true
+	end
+	if inv:contains_item("main", "orienteering:altimeter") then
+		altimeter = true
+	end
+	if inv:contains_item("main", "orienteering:triangulator") then
+		triangulator = true
+	end
+	if inv:contains_item("main", "orienteering:compass") then
+		compass = true
+	end
+	if inv:contains_item("main", "orienteering:sextant") then
+		sextant = true
+	end
+	if inv:contains_item("main", "orienteering:watch") then
+		watch = true
+	end
+	if inv:contains_item("main", "orienteering:speedometer") then
+		speedometer = true
+	end
+
+	local str_pos, str_angles, str_time, str_speed
+	local pos = vector.apply(player:getpos(), math.floor)
+	if (altimeter and triangulator) or gps then
+		str_pos = "Coordinates: X="..pos.x..", Y="..pos.y..", Z="..pos.z
+	elseif altimeter then
+		str_pos = "Height: Y="..pos.y
+	elseif triangulator then
+		str_pos = "Coordinates: X="..pos.x..", Z="..pos.z
+	else
+		str_pos = ""
+	end
+
+	local yaw = math.floor((player:get_look_yaw()-math.pi*0.5)/(2*math.pi)*360)
+	local pitch = math.floor(player:get_look_pitch()/math.pi*360)
+	if compass and sextant then
+		str_angles = "Yaw: "..yaw..", pitch: "..pitch
+	elseif compass or gps then
+		str_angles = "Yaw: "..yaw
+	elseif sextant then
+		str_angles = "Pitch: "..yaw
+	else
+		str_angles = ""
+	end
+
+	local time = minetest.get_timeofday()
+	if watch or gps then
+		local totalminutes = time * 1440
+		local hours = math.floor(totalminutes / 60)
+		local minutes = math.floor(math.fmod(totalminutes, 60))
+		str_time = string.format("Time: %02i:%02i", hours, minutes)
+	else
+		str_time = ""
+	end
+
+	if speedometer or gps then
+		str_speed = ""
+	else
+		str_speed = ""
+	end
+
+	local name = player:get_player_name()
+	player:hud_change(orienteering.playerhuds[name].pos, "text", str_pos)
+	player:hud_change(orienteering.playerhuds[name].angles, "text", str_angles)
+	player:hud_change(orienteering.playerhuds[name].time, "text", str_time)
+	player:hud_change(orienteering.playerhuds[name].speed, "text", str_speed)
+end
+
+minetest.register_on_newplayer(init_hud)
+minetest.register_on_joinplayer(init_hud)
+
+minetest.register_on_leaveplayer(function(player)
+	orienteering.playerhuds[player:get_player_name()] = nil
 end)
 
 local updatetimer = 0
@@ -80,6 +172,7 @@ minetest.register_globalstep(function(dtime)
 		local players = minetest.get_connected_players()
 		for i=1, #players do
 			update_automapper(players[i])
+			update_hud_displays(players[i])
 		end
 		updatetimer = updatetimer - dtime
 	end