HS: investigations

Dev Diary has been on holiday skiing in Leysin, which was an interesting demonstration of how hopeless it is trying to render bump maps when your diffuse lighting component is too high.

Now that it is possible to assign squads to attend an investigation, the first part of the game that is actually to do with gameplay can be programmed! Each investigation will comprise a number of elements, and "solving" one element will open up other potential elements to investigate. Some elements may result in the retrieval of alien artefacts or, later, switching to tactical combat mode.

The idea is to make investigations feel as much like "simulations" as the tactical combat mode, giving the player lots of realistic choices to take with limited resources.