Item Rarity

[probably-not-porter]

We should have a rarity system for items, scaled by integers.
1-5 is probably a reasonable range, with 1 being common and 5 being legendary, possibly one of a kind.
common -> uncommon -> rare -> ultra rare -> legendary

These could be accompanying worldgen params that control the amount of each that exists.

SPAWNRATE_1 = 100 (per world)
...
SPAWNRATE_5= 1 (per world)

[probably-not-porter]

0 should be for a one of a kind item that is instanced, like a quest item. There's only one, but each player can acquire the same one.