Add countdown on HUD for prematch build time

mods/ctf_barrier/init.lua

@@ -170,8 +170,6 @@ ctf_match.register_on_build_time_end(function()
 		end
 	end
 
-	print(n .. " invalid nodes out of " .. t .. " (" .. (t-n) .. " valid)")
-
 	vm:set_data(data)
 	vm:write_to_map(data)
 	vm:update_map()

mods/ctf_match/buildtime.lua

@@ -33,6 +33,7 @@ ctf.register_on_new_game(function()
 	end
 end)
 
+local last = 0
 minetest.register_globalstep(function(delta)
 	if ctf_match.build_timer > 0 then
 		ctf_match.build_timer = ctf_match.build_timer - delta
@@ -41,6 +42,13 @@ minetest.register_globalstep(function(delta)
 				ctf_match.registered_on_build_time_end[i]()
 			end
 		end
+		local rbt = math.floor(ctf_match.build_timer)
+		if last ~= rbt then
+			local text = math.floor(ctf_match.build_timer) .. "s until match begins!"
+			for _, player in pairs(minetest.get_connected_players()) do
+				ctf.hud:change(player, "ctf_match:countdown", "text", text)
+			end
+		end
 	end
 end)
 
@@ -53,4 +61,23 @@ end)
 ctf_match.register_on_build_time_end(function()
 	minetest.chat_send_all("Build time over! Attack and defend!")
 	minetest.setting_set("enable_pvp", "true")
+	for _, player in pairs(minetest.get_connected_players()) do
+		ctf.hud:remove(player, "ctf_match:countdown")
+	end
+end)
+
+ctf.hud.register_part(function(player, name, tplayer)
+	if ctf_match.build_timer <= 0 then
+		ctf.hud:remove(player, "ctf_match:countdown")
+	elseif not ctf.hud:exists(player, "ctf_match:countdown") then
+		ctf.hud:add(player, "ctf_match:countdown", {
+			hud_elem_type = "text",
+			position      = {x = 0.5, y = 0.5},
+			scale         = {x = 0, y = 70},
+			text          = math.floor(ctf_match.build_timer) .. "s until match begins!",
+			number        = 0xFFFFFF,
+			offset        = {x = -20, y = 20},
+			alignment     = {x = 0.2, y = 0}
+		})
+	end
 end)

mods/ctf_match/depends.txt

@@ -1,3 +1,4 @@
 ctf
 ctf_flag
 vote
+hudkit