{ "format_version": "1.8.0", "minecraft:spawn_rules": { "description": { "identifier": "minecraft:wolf", "population_control": "animal" }, "conditions": [ { "minecraft:spawns_on_surface": {}, "minecraft:spawns_on_block_filter": [ "minecraft:grass", "minecraft:podzol", "minecraft:dirt" ], "minecraft:brightness_filter": { "min": 7, "max": 15, "adjust_for_weather": false }, "minecraft:weight": { "default": 8 }, "minecraft:herd": { "min_size": 4, "max_size": 4 }, "minecraft:biome_filter": { "test": "has_biome_tag", "operator": "==", "value": "taiga" } }, { "minecraft:spawns_on_surface": {}, "minecraft:spawns_on_block_filter": [ "minecraft:grass", "minecraft:podzol", "minecraft:dirt" ], "minecraft:brightness_filter": { "min": 7, "max": 15, "adjust_for_weather": false }, "minecraft:weight": { "default": 8 }, "minecraft:herd": { "min_size": 2, "max_size": 4 }, "minecraft:biome_filter": { "test": "has_biome_tag", "operator": "==", "value": "grove" } }, { "minecraft:spawns_on_surface": {}, "minecraft:spawns_on_block_filter": "minecraft:grass", "minecraft:brightness_filter": { "min": 7, "max": 15, "adjust_for_weather": false }, "minecraft:weight": { "default": 5 }, "minecraft:herd": { "min_size": 4, "max_size": 4 }, "minecraft:biome_filter": { "all_of": [ { "test": "has_biome_tag", "operator": "==", "value": "forest" }, { "test": "has_biome_tag", "operator": "!=", "value": "mutated" }, { "test": "has_biome_tag", "operator": "!=", "value": "birch" }, { "test": "has_biome_tag", "operator": "!=", "value": "roofed" }, { "test": "has_biome_tag", "operator": "!=", "value": "mountain" } ] } } ] } }