Fix potential crashes and a memleak

Author: LoneWolfHT

mods/apis/ctf_gui/init.lua

@@ -460,10 +460,16 @@ function ctf_gui.old_show_formspec(player, formname, formdef)
 		formdef._info = formdef
 		context[player] = formdef
 
-		minetest.log("action", "Showing formspec "..dump(formname).." to "..dump(player))
-		minetest.show_formspec(player, formname, formspec)
+		if minetest.get_player_by_name(player) then
+			minetest.log("action", "Showing formspec "..dump(formname).." to "..dump(player))
+			minetest.show_formspec(player, formname, formspec)
+		end
 	end,
 	formdef, ctf_gui.ELEM_SIZE, ctf_gui.SCROLLBAR_WIDTH)
 end
 
+minetest.register_on_leaveplayer(function(player)
+	context[player:get_player_name()] = nil
+end)
+
 dofile(minetest.get_modpath("ctf_gui").."/dev.lua")

mods/ctf/ctf_modebase/respawn_delay.lua

@@ -1,6 +1,15 @@
 local RESPAWN_SECONDS = 7
 local AUTO_RESPAWN_TIME = 0.4
-local respawn_delay = {}
+local respawn_delay = {--[[
+	pname = {
+		obj = <freeze object>,
+		timer = <minetest.after job>,
+		timer = <minetest.after job>,
+		hp_max = <Player's max hp before respawn process started>,
+		left = <Time left to respawn>,
+		state = <?>,
+	}
+]]}
 local hud = mhud.init()
 
 minetest.register_entity("ctf_modebase:respawn_movement_freezer", {
@@ -132,6 +141,9 @@ minetest.register_on_leaveplayer(function(player)
 		if respawn_delay[pname].timer then
 			respawn_delay[pname].timer:cancel()
 		end
+		if respawn_delay[pname].autorespawn then
+			respawn_delay[pname].autorespawn:cancel()
+		end
 		player:set_properties({hp_max = respawn_delay[pname].hp_max})
 		respawn_delay[pname] = nil
 	end