Well, it seems that tcod has an issue with the MSVC linker, so I had to switch to the GNU version of Rust.

I've split this week up corresponding to the tutorial parts. It seemed to make more sense than putting them both together.

Apparently I got a bit ahead of myself in the previous section, and generalised the unit too early, so this is one is mostly just the map. I did add the colour to the unit object, which I had missed when doing the last section.

I opted, for now at least, to keep the player unit out of the NPC list. If I put it in the list, I wouldn't be able to hold a constant reference, and would have to specifically fetch the player unit in each iteration of the loop. Depending on how I handle AI in the future, I may be able to offload the AI handling routine to a separate object that's injected into the Unit, and handle player input with that. In that case I may be able to just shove the player unit into the NPC array and handle it with the rest. We'll see.

I decided to add the functions get_color and get_glyph to the Renderable trait, so that I could turn render into a provided method. That'll mean I don't need to keep rewriting the same function in the same way for anything simple that just puts a character on screen.

For the map, instead of just storing an array, I decided to build a full map structure. That way, the implementation details are hidden from the rest of the program. I also opted to place the NPC list into the map, so it will handle rendering and updating them. Given NPCs will be on a map, it seemed to make sense to have them owned by the map.

I realised just before starting the week 3 section that I had forgotten to handle wall collisions. While doing that, I decided to re-write how I handled coordinates, opting for a Point type that implements the Add and Sub traits. I also added a function to the Direction enum to convert it to a relative Point. That simplified the movement handling greatly, as I can just sum the relative point with the player's current position, and use that to check the map for blocking tiles.