definitions/features/mega_spruce_tree_feature.json

{
  "format_version": "1.13.0",
  "minecraft:tree_feature": {
    "description": {
      "identifier": "minecraft:mega_spruce_tree_feature"
    },
    "mega_trunk": {
      "trunk_width": 2,
      "trunk_height": {
        "base": 13,
        "intervals": [ 3, 15 ]
      },
      "trunk_block": {
        "name": "minecraft:log",
        "states": {
          "old_log_type": "spruce"
        }
      }
    },
    "mega_pine_canopy": {
      "canopy_height": {
        "range_min": 13,
        "range_max": 18
      },
      "base_radius": 0,
      "radius_step_modifier": 3.5,
      "core_width": 2,
      "leaf_block": {
        "name": "minecraft:leaves",
        "states": {
          "old_leaf_type": "spruce"
        }
      }
    },
    "base_block": "minecraft:podzol",
    "base_cluster": {
      "may_replace": [
        "minecraft:grass",
        {
          "name": "minecraft:dirt",
          "states": {
            "dirt_type": "normal"
          }
        },
        {
          "name": "minecraft:dirt",
          "states": {
            "dirt_type": "coarse"
          }
        }
      ],
      "num_clusters": 5,
      "cluster_radius": 2
    },
    "may_grow_on": [
      "minecraft:grass",
      "minecraft:dirt",
      "minecraft:podzol",
      {
        "name": "minecraft:dirt",
        "states": {
          "dirt_type": "coarse"
        }
      }
    ],
    "may_replace": [
      "minecraft:air",
      {
        "name": "minecraft:leaves",
        "states": {
          "old_leaf_type": "oak"
        }
      },
      {
        "name": "minecraft:leaves",
        "states": {
          "old_leaf_type": "spruce"
        }
      },
      {
        "name": "minecraft:leaves",
        "states": {
          "old_leaf_type": "birch"
        }
      },
      {
        "name": "minecraft:leaves",
        "states": {
          "old_leaf_type": "jungle"
        }
      },
      {
        "name": "minecraft:leaves2",
        "states": {
          "new_leaf_type": "acacia"
        }
      },
      {
        "name": "minecraft:leaves2",
        "states": {
          "new_leaf_type": "dark_oak"
        }
      }
    ],
    "may_grow_through": [
      "minecraft:dirt",
      "minecraft:grass",
      {
        "name": "minecraft:dirt",
        "states": {
          "dirt_type": "coarse"
        }
      }
    ]
  }
}