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config/betterfortresses/fabric-1_20/README.txt

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+######################################
+#          itemframes.json          #
+######################################
+  This file contains ItemRandomizers describing the probability distribution of items in item frames.
+Item frames only spawn in certain rooms and hallway pieces.
+For information on ItemRandomizers, see the bottom of this README.
+######################################
+#         ItemRandomizers           #
+######################################
+Describes a set of items and the probability of each item being chosen.
+ - entries: An object where each entry's key is an item, and each value is that item's probability of being chosen.
+      The total sum of all probabilities SHOULD NOT exceed 1.0!
+ - defaultItem: The item used for any leftover probability ranges.
+      For example, if the total sum of all the probabilities of the entries is 0.6, then
+      there is a 0.4 chance of the defaultItem being selected.
+Here's an example ItemRandomizer:
+{
+  "entries": {
+    "minecraft:cobblestone": 0.25,
+    "minecraft:air": 0.2,
+    "minecraft:stone_sword": 0.1
+  },
+  "defaultItem": "minecraft:iron_axe"
+}
+This randomizer has a 25% chance of returning cobblestone, 20% chance of choosing air,
+10% chance of choosing a stone sword, and a 100 - (25 + 20 + 10) = 45% chance of choosing iron axe (since it's the default item).