LootSpan (Distance-based Loot)

1.

   #How far from (0,0) in the [X,Z] plane must a chest be to get extra loot?
   #Range: 0.0 ~ 1.7976931348623157E308
   distanceFromSpawn = 5000.0

 This is just the distance you must be to start getting better loot. Pretty self explanitory.

2.

   #Extended format: namespace:itemid:count:weight[:damage][:enchantment1=level1,enchantment2=level2,...]
	extraLoot = [
 "minecraft:diamond:1:1",
 "minecraft:emerald:2:5",
 "minecraft:golden_carrot:2:14",
 "minecraft:gold_nugget:4:10", 
 "minecraft:leather:2:15",
 "minecraft:ender_pearl:1:5",
 "minecraft:slime_ball:3:5",
 "minecraft:string:3:20",
 "minecraft:air:1:45", 
 "minecraft:iron_sword:1:2:70:sharpness=1,unbreaking=2",
 "minecraft:iron_axe:1:2:50:unbreaking=1,efficiency=1",
 "minecraft:iron_shovel:1:2:100:unbreaking=3,efficiency=2",
 "minecraft:golden_pickaxe:1:1:8:silk_touch=1,unbreaking=1"
]

 This is where you can adjust the loot that is generated. Every entry must have: 

'namespace:itemid'. for vanilla items this is 'minecraft', but for modded items it's 'modID'. just press F3+H ingame to view the modID and itemID of any item.

'count'. this is the amount of the item. right now it must be a single number, in future updates I may add a min/max item count.

'weight'. this is the likeliness that an item will be chosen for a given loot roll. for example, by default: 
a diamond will be generated 1 time out of 127 (127 being the total weight of all items) or 0.78% chance per roll.

What is: "minecraft:air:1:45" - this is just empty space. Basically, it's the chance to roll nothing for a loot roll, which is 45/127 or 35%.

For advanced item entries, you can add optional item damage functions (like an axe with low durability) or enchantments.

'damage'. the amount of remaining durability an item has.

'enchantment=number,enchantment2=number'. the enchantment and the associated level. right now, it works for equipment

3.

#Base number of times the custom loot pool is rolled per chest (default=1).
   #Range: > 0
   poolRollCount = 1

 This is the number of times an entry will be selected from the 'extraLoot' pool. For example, if you set this to 3, you could get:

1 ender pearl

6 slime balls (3 slime balls x 2)

4.

#Every this many blocks beyond distanceFromSpawn grants +1 extra roll.
   #Range: > 1
   blockIncrement = 2500

 If you would like extra loot to be more plentiful as you go even farther, you can adjust this. By this logic (by default):

At [7500] away from [0,0], you will get 2 rolls of the loot pool.

At [9999] away from [0,0], you will get 2 rolls of the loot pool.

At [11000] away from [0,0], you will get 3 rolls of the loot pool.

To disable this, you can set it to a very high number that won't be reached, OR adjust the next config.

5.

#Maximum number of extra rolls that can be granted (default=4).
   #Range: > 0
   maxExtraRolls = 4

 This is the maximum amount of rolls that can be generated by the `blockIncrement` setting. So by default:

At [15000] away from [0,0], you will get 5 rolls of the loot pool.

At [20000] away from [0,0], you will get 5 rolls of the loot pool still, because the limit (4 maximum bonus rolls) has been reached.