Create enemy/obstacle placement component

[BedfordWest]

@ddaypunk06 @watsondarren can discuss the zone layout stuff for the MVP here

[BedfordWest]

I think a few rules have already come about and make sense:

• Enemies should not spawn within a certain distance from the player. Maybe at least 3 tiles away?
• Enemies should not spawn within a certain distance from each other. Maybe at least 2 tiles away?
• Player should spawn close to a wall? Not sure if this is necessary, but it's an idea we can play around with. I like the idea of randomizing the starting location, at least.

A few other things I've thought about:

• Obstacles can spawn anywhere within the room so long as they don't overlap with the player/enemies.
• Can line the outside of the room with walls for now.
• Can possibly have walls extend into the room a little bit just to make it a little interesting.

[andydelso]

My thought with the player starting on the edges would be as if they entered the dungeon instead of taking into it. If they do fall into it, we'd need the to be cover near by.

[andydelso]

This is done right?