Restricting outpost access
Now that we have an inventory keeping track of the power cells that we have collected, let's set up a game mechanic that forces the player to collect all four power cells before they may be granted access to the outpost.
We will begin by achieving this in code, then add two visual indicators for the player.
Firstly, in the form of a 2D HUD—this will be in the form of a GUITexture, the texture which will be dependent upon the charge variable in the Inventory script:
Secondly, in the form of a generator model that will be placed next to the outPost object's door, the texture of which will also be swapped depending upon the value of charge:
Restricting door access with a cell counter
In this section, we will write code into our inventory that checks that the player has enough power cells to open the door. We currently have a trigger zone in charge of opening the door, so we will amend this to query the value of charge in our new inventory, whenever the player enters the...
