Add CTF Respawn Delay (#712)

* Add respawn delay

* Fix weird edit of .luacheckrc

mods/ctf/ctf_events/mod.conf

@@ -1,2 +1,2 @@
 name = ctf_events
-depends = ctf, ctf_match, hudkit
+depends = ctf, ctf_match, ctf_map_core, hudkit

mods/ctf/ctf_respawn_delay/README.md

@@ -0,0 +1,3 @@
+# CTF Respawn Delay
+
+Thanks to LMD for the hp_max=0 and registered_on_respawnplayers ideas

mods/ctf/ctf_respawn_delay/init.lua

@@ -0,0 +1,85 @@
+ctf_respawn_delay = {
+	players = {},
+}
+local respawnfunc
+local RESPAWN_DELAY = 5
+local RESPAWN_INTERVAL = 1.1
+local RESPAWN_MESSAGE = "Respawning in "
+
+minetest.register_on_dieplayer(function(player, reason)
+	local pname = player:get_player_name()
+	if ctf_match.is_in_build_time() or (reason.type == "punch" and reason.object and
+	reason.object:is_player() and reason.object:get_player_name() == pname) then
+		return
+	end
+
+	ctf_respawn_delay.players[pname] = {
+		old_max = player:get_properties().hp_max,
+		timeleft = "waiting",
+		hudid = player:hud_add({
+			hud_elem_type = "text",
+			position = {x=0.5, y=0.5},
+			name = "respawn_delay",
+			scale = {x=100, y=100},
+			text = RESPAWN_MESSAGE..RESPAWN_DELAY,
+			number = 0xD600AF,
+			alignment = {x = 0, y = -1},
+			offset = {x = 0, y = 0},
+			size = {x = 2},
+		})
+	}
+	player:set_properties({hp_max = 0})
+end)
+
+minetest.register_on_mods_loaded(function()
+	ctf_respawn_delay.registered_on_respawnplayers = minetest.registered_on_respawnplayers
+	minetest.registered_on_respawnplayers = {}
+
+	table.insert(minetest.registered_on_respawnplayers, 1, function(player)
+		local pname = player:get_player_name()
+
+		if ctf_respawn_delay.players[pname] and ctf_respawn_delay.players[pname].timeleft == "waiting" then
+			local pos = player:get_pos()
+			pos.y = 500
+
+			player:set_pos(pos) -- Player will be stuck there because CTF 'air' is walkable
+			ctf_respawn_delay.players[pname].timeleft = RESPAWN_DELAY
+			minetest.after(RESPAWN_INTERVAL, respawnfunc, pname)
+
+			return true
+		end
+
+		for k, func in ipairs(ctf_respawn_delay.registered_on_respawnplayers) do
+			func(player)
+		end
+
+		return true
+	end)
+end)
+
+function respawnfunc(pname)
+	local player = minetest.get_player_by_name(pname)
+
+	if not player then
+		ctf_respawn_delay.players[pname] = nil
+		return
+	end
+
+	ctf_respawn_delay.players[pname].timeleft = ctf_respawn_delay.players[pname].timeleft - 1
+	local timeleft = ctf_respawn_delay.players[pname].timeleft
+
+	if timeleft > 0 then
+		player:hud_change(ctf_respawn_delay.players[pname].hudid, "text", RESPAWN_MESSAGE..timeleft)
+
+		minetest.after(RESPAWN_INTERVAL, respawnfunc, pname)
+	else
+		player:hud_remove(ctf_respawn_delay.players[pname].hudid)
+		player:set_properties({hp_max = ctf_respawn_delay.players[pname].old_max})
+		player:set_hp(ctf_respawn_delay.players[pname].old_max)
+		ctf_respawn_delay.players[pname] = nil
+
+		for k, func in ipairs(ctf_respawn_delay.registered_on_respawnplayers) do
+			func(player)
+		end
+	end
+end

mods/ctf/ctf_respawn_delay/mod.conf

@@ -0,0 +1,2 @@
+name = ctf_respawn_delay
+depends = ctf_match