[0.11.4] Crash in Sandbox mode

[Dodging_Rain]

When a player entity is not on the map, such as the current sandbox mode and two version ago, and the player tries to manipulate something on the map, the game will crash.

It's player related events when there is no player character caused by any mod that has a player hook.

Credit to Rseding91.

[kovarex]

Fixed for 0.11.4.

I'm not going to accept any pull request without tests covering the functionality ever.