Added a way for the game to try and load (and fix) savefiles with errors...

Added a way for the game to try and load (and fix) savefiles with errors (usualy due to data that should not have been saved). It is likely to work in many instances, but not guaranted.

game/engines/default/engine/Savefile.lua

@@ -474,7 +474,14 @@ function _M:loadReal(load)
 		lines[#lines+1] = l
 	end
 	f:close()
-	local o = class.load(table.concat(lines), load)
+	local ok, o = xpcall(function() return class.load(table.concat(lines), load) end, debug.traceback)
+	if not ok then
+		print("[SAVEFILE ERROR] loading object", load, "resulting in: ", o)
+		self:addDelayLoad{loaded = function() game:onTickEnd(function()
+			require("engine.ui.Dialog"):simplePopup("Savefile loading WARNING", "The game has detected a problem in the savefile and attempted to fix it.\nIt is likely to work without any adverse effects but should a problem arise, please mention this event in the bug report.")
+		end) end}
+		return nil
+	end
 
 	-- Resolve self referencing tables now
 	resolveSelf(o, o, true)