Added weighted features provided by @crovono

examples/bp/feature_rules/weighted_random_feature_placement.json

@@ -0,0 +1,22 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:feature_rules": {
+		"description": {
+			"identifier": "weighted_random_features:weighted_random_feature_placement",
+			"places_feature": "weighted_random_features:weighted_random_feature"
+		},
+
+		"conditions": {
+			"placement_pass": "final_pass"
+		},
+
+		"distribution": {
+			"iterations": 1,
+
+			"x": 0,
+			"z": 0,
+			"y": 90
+		}
+	}
+}

examples/bp/features/weighted_random_feature.json

@@ -0,0 +1,15 @@
+{
+  "format_version": "1.13.0",
+
+  "minecraft:weighted_random_feature": {
+    "description": {
+      "identifier": "weighted_random_features:weighted_random_feature"
+    },
+
+    "features": [
+      //The schema says float for weights, but the game truncates it. You should enforce integers.
+      ["weighted_random_features:weighted_random_feature_obsidian", 3],
+      ["weighted_random_features:weighted_random_feature_planks", 1]
+    ]
+  }
+}

examples/bp/features/weighted_random_feature_obsidian.json

@@ -0,0 +1,14 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:single_block_feature": {
+		"description": {
+			"identifier": "weighted_random_features:weighted_random_feature_obsidian"
+		},
+
+		"places_block": "minecraft:obsidian",
+
+		"enforce_placement_rules": false,
+		"enforce_survivability_rules": false
+	}
+}

examples/bp/features/weighted_random_feature_planks.json

@@ -0,0 +1,14 @@
+{
+	"format_version": "1.13.0",
+
+	"minecraft:single_block_feature": {
+		"description": {
+			"identifier": "weighted_random_features:weighted_random_feature_planks"
+		},
+
+		"places_block": "minecraft:planks",
+
+		"enforce_placement_rules": false,
+		"enforce_survivability_rules": false
+	}
+}