Potentially, higher rarity = harder to find. A rarity 10 for example might be easy to find over a rarity 80...or vice versa.
Aggression is how likely the creature is to probably stay and fight or want to tear you apart on sight. Higher numbers, more psychotic.
Edited By: Calgor Grim on Year 13 Day 243 13:35 ____________
You are entering the vicinity of an area adjacent to a location. The kind of place where there might be a monster, or some kind of weird mirror. These are just examples; it could also be something much better. Prepare to enter: The Scary Door.
Initially it was planned to allow them to only spawn there (and worked that way when initially introduced), but I seem to remember discussions since then pointing to it just increasing spawn rate, along the lines of NPC hiring.
We'll likely simply delete the Homeworlds business as it's silly. Or maybe have a slightly higher spawn rate, but given that many species don't have homeworlds, or some homeworlds tend to have a crapton of them, it's rather lame.
So, if I understand you correctly, at some foreseeable future time, creatures will actually be able to initiate combat? And rather than move aimlessly around the terrain as you plink away at them, they may come right up and start gnawing on your flesh?
That was the original intent. Obviously creatures such as the Nerf wouldn't initiate combat, but would either fight back if you attacked or just run away. But something like the Rancor would hunt you down and attack you if you got within a certain range. Same with bandits.
The current setup is to let people break combat so they can fix as many bugs as possible before then. Of course, it could end up that such auto-attacking might be overpowered and they might turn it down or off altogether - thats the beauty of being in beta.
I would think a range 18 auto-attacking Rancor would be something to run screaming from at full speed.
Too powerful? Perhaps juuust a tad. (:^D)
Although I could see creatures moving towards you to close the distance, if you attack them first, and they're out of range ATM. Same as an intelligent bandit group, if they have the advantage, they might press it, rather than just run away.