アドオン作成 - ブロック

目次は右上の「≡」から！

ファイル・フォルダの場所

ビヘイビア
　 ┣ manifest.json
　 ┣ pack_icon.png
　 ┗ blocks
　　 ┗〇〇.json

作成の流れ

ブロック本体に加えてテクスチャも追加するので、ビヘイビアとリソース両方が必要になります。

全体の作業はこうなります：

① blocksフォルダに新しくJSONを新規作成する
　(+ ルートテーブルのJSONを追加する)
② ブロックのテクスチャを追加する
③ terrain_texture.jsonを編集or新規作成する
④ blocks.jsonを編集or新規作成する
　(+ ブロックのジオメトリを追加する)
⑤ .langファイルを編集or新規作成する

リソースに関する詳細はこちら

ブロックを定義するJSON

これはブロックが定義できるための最小限の内容です。ゼロから作る場合はこれをコピペするといいでしょう。

Dat

blocks/my_block.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "test:my_block"
    },
    "components": {
      // コンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "test:my_block" }, "components": { // コンポーネント } } }

主な構成

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "test:my_block"
    },
    "components": {
      // コンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "test:my_block" },

"components": { // コンポーネント }

} }

大きく関わってくるのがこの赤い枠で囲った部分で、もっと言えばその中の{ }内にコンポーネントを書き足していきます。

発展的な構成

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "test:my_block",
      "properties": {
        "test:my_property": [ 0, 1 ]
        // ...
      }
    },
    "permutations": [
      {
        "components": {
          // コンポーネント
        },
        "condition": "q.block_property('test:my_property') == 1"
      }
      // ...
    ],
    "components": {
      // コンポーネント
    },
    "events": {
      // イベント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "test:my_block", "properties": { "test:my_property": [ 0, 1 ] // ... } },

"permutations": [ { "components": { // コンポーネント }, "condition": "q.block_property('test:my_property') == 1" } // ... ],

"components": { // コンポーネント },

"events": { // イベント }

} }

プロパティ、パーミュテーション、イベントを用いてより複雑な仕様をもったブロックを作ることができます。

イベント

イベントをトリガーする(呼び出す)ことができる特定のコンポーネントによって呼び出され、指定したイベントファンクションを動作させます。

イベントトリガー系コンポーネント
　　　　↓　呼び出す
イベント

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "test:my_block"
    },
    "components": {
      "minecraft:〇〇": { // イベントトリガー系コンポーネント
        "event": "test" // 呼び出すイベントを指定
      }
    },
    "events": {
      "test": { // イベント名
        // イベントファンクション
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "test:my_block" },

"components": { "minecraft:〇〇": { // イベントトリガー系コンポーネント "event": "test" // 呼び出すイベントを指定 } },

"events": { "test": { // イベント名 // イベントファンクション } }

} }

プロパティ・パーミュテーション

プロパティを定義して、ハーフブロックの上付き・下付きのようにブロック自体は同じでも「状態」が異なるものとして扱うことができます。

プロパティの値は、真偽値、整数値、文字列のみで、定義するときに長さを決定する必要があります。

パーミュテーションはプロパティなどの条件(condition)を元に、コンポーネントを上書きしたり追加したりするのに使います。

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "test:my_block",
      "properties": {
        "test:my_property_bool": [ false, true ],
        "test:my_property_int": [ 0, 1, 2, 3 ],
        "test:my_property_string": [ "a", "b", "c" ]
        // ...
      }
    },
    "permutations": [
      {
        "components": {
          // コンポーネント
        },
        "condition": "q.block_property('test:my_property') == 1"
      }
      // ...
    ],
    "components": {
      // コンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "test:my_block",

"properties": { "test:my_property_bool": [ false, true ], "test:my_property_int": [ 0, 1, 2, 3 ], "test:my_property_string": [ "a", "b", "c" ] // ... }

"permutations": [ { "components": { // コンポーネント }, "condition": "q.block_property('test:my_property') == 1" } // ... ],

"components": { // コンポーネント }

} }

「状態」は主にイベントを介して操作します。

① ブロックのイベントファンクション「set_block_property」を用いてプロパティを変更
② パーミュテーションの"conditon"で現在のプロパティと比較
③ 該当するパーミュテーションのコンポーネントで元のコンポーネントを上書きする

具体例

シンプルなブロック

JSONがシンプルになるように性質を選んできています。

Dat

blocks/block01.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block01"
    },
    "components": {
      "minecraft:block_light_emission": 1.0,
      "minecraft:creative_category": {
        "category": "construction"
      },
      "minecraft:destroy_time": 1.0,
      "minecraft:explosion_resistance": 5.0,
      "minecraft:loot": "loot_tables/blocks/block01.json",
      "minecraft:map_color": "#64ec86"
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block01" }, "components": { "minecraft:block_light_emission": 1.0, "minecraft:creative_category": { "category": "construction" }, "minecraft:destroy_time": 1.0, "minecraft:explosion_resistance": 5.0, "minecraft:loot": "loot_tables/blocks/block01.json", "minecraft:map_color": "#64ec86" } } }

このお手本ブロックは以下のような性質を持ちます↓

明るさレベル最大で光る
クリエイティブインベントリでは「建造物」カテゴリにある
壊すのにかかる時間は1.0秒
爆発耐性は5.0
ルートテーブルは「loot_tables/blocks/block01.json」を参照
地図での表示色は #64ec86

オリジナル作業台

Dat

blocks/block02.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block02"
    },
    "components": {
      "minecraft:crafting_table": {
        "grid_size": 3,
        "crafting_tags": [ "my_craft" ],
        "custom_description": "UIに表示する作業台の名前"
      }
      // +その他のコンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block02" }, "components": { "minecraft:crafting_table": { "grid_size": 3, "crafting_tags": [ "my_craft" ], "custom_description": "UIに表示する作業台の名前" } // +その他のコンポーネント } } }

クラフトのマスは3x3のみです。 "crafting_tags"はレシピの"tags"と対応させて同じタグを持ったレシピのクラフトしかできないようにします。

特殊な形のブロック

Dat

blocks/block03.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block03"
    },
    "components": {
      "minecraft:geometry": "geometry.geometry_block",
      "minecraft:material_instances": {
        "*": {
          "material": "opaque",
          "texture": "geometry_block" // TerrainID
        }
      }
      // +その他のコンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block03" }, "components": { "minecraft:geometry": "geometry.geometry_block", "minecraft:material_instances": { "*": { "material": "opaque", "texture": "geometry_block" // TerrainID } } // +その他のコンポーネント } } }

minecraft:geometryコンポーネントを使うときはminecraft:material_instancesコンポーネントも必須です。

特別な場所にしか置けないブロック

Dat

blocks/simple_block.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:simple_block"
    },
    "components": {
      "minecraft:placement_filter": {
        "conditions": [
          {
            "allowed_faces": [ "up" ],
            "block_filter": [ "minecraft:grass", "minecraft:dirt" ]
          },
          {
            "allowed_faces": [ "up", "down" ],
            "block_filter": [ "minecraft:stone" ]
          }
        ]
      }
      // +その他のコンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:simple_block" }, "components": { "minecraft:placement_filter": { "conditions": [ { "allowed_faces": [ "up" ], "block_filter": [ "minecraft:grass", "minecraft:dirt" ] }, { "allowed_faces": [ "up", "down" ], "block_filter": [ "minecraft:stone" ] } ] } // +その他のコンポーネント } } }

この場合、草ブロックと土の上面と石の上下面にだけ置けます。

半透明のブロック

Dat

blocks/block04.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block04"
    },
    "components": {
      "minecraft:material_instances": {
        "*": {
          "material": "blend",
          "texture": "blend_block" // TerrainID
        }
      }
      // +その他のコンポーネント
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block04" }, "components": { "minecraft:material_instances": { "*": { "material": "blend", "texture": "blend_block" // TerrainID } } // +その他のコンポーネント } } }

アイテムを持って右クリorタップするとコマンドが実行されるブロック

Dat

blocks/block11.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block11"
    },
    "components": {
      "minecraft:on_interact": {
        "event": "ex:interact",
        "target": "self",
        "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone'"
      }
      // +その他のコンポーネント
    },

    "events": {
      "ex:interact": {
        "run_command": "setblock ~ ~1 ~ cobblestone"
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block11" }, "components": { "minecraft:on_interact": { "event": "ex:interact", "target": "self", "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone'" } // +その他のコンポーネント }, "events": { "ex:interact": { "run_command": "setblock ~ ~1 ~ cobblestone" } } } }

丸石を持って右クリック/タップしたときのみ丸石がブロックの上に/setblockされます。

アイテム(2種類)を持って右クリorタップするとコマンドが実行されるブロック

Dat

blocks/block12.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block12"
    },
    "components": {
      "minecraft:on_interact": {
        "event": "ex:interact",
        "target": "self",
        "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone' || q.get_equipped_item_name('main_hand') == 'dirt'"
      }
    },

    "events": {
      "ex:interact": {
        "sequence": [
          {
            "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone'",
            "trigger": {
              "condition": "(1.0)",
              "event": "ex:setblock_cobblestone",
              "target": "self"
            }
          },
          {
            "condition": "q.get_equipped_item_name('main_hand') == 'dirt'",
            "trigger": {
              "condition": "(1.0)",
              "event": "ex:setblock_dirt",
              "target": "self"
            }
          }
        ]
      },
      "ex:setblock_cobblestone": {
        "run_command": { "command": "setblock ~ ~1 ~ cobblestone" }
      },
      "ex:setblock_dirt": {
        "run_command": { "command": "setblock ~ ~1 ~ dirt" }
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block12" }, "components": { "minecraft:on_interact": { "event": "ex:interact", "target": "self", "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone' || q.get_equipped_item_name('main_hand') == 'dirt'" } }, "events": { "ex:interact": { "sequence": [ { "condition": "q.get_equipped_item_name('main_hand') == 'cobblestone'", "trigger": { "condition": "(1.0)", "event": "ex:setblock_cobblestone", "target": "self" } }, { "condition": "q.get_equipped_item_name('main_hand') == 'dirt'", "trigger": { "condition": "(1.0)", "event": "ex:setblock_dirt", "target": "self" } } ] }, "ex:setblock_cobblestone": { "run_command": { "command": "setblock ~ ~1 ~ cobblestone" } }, "ex:setblock_dirt": { "run_command": { "command": "setblock ~ ~1 ~ dirt" } } } } }

このブロックに右クリック/タップをするとき、

① 丸石をもってると丸石を上に/setblock
② 土を持っていると土を上に/setblock

原木のように向きが変わるブロック

Dat

blocks/block13.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block13",
      "properties": {
        "ex:rotation": [ 1, 2, 3 ]
      }
    },

    "permutations": [
      {
        "components": { "minecraft:rotation": [ 0, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 1"
      },
      {
        "components": { "minecraft:rotation": [ 90, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 2"
      },
      {
        "components": { "minecraft:rotation": [ 0, 0, 90 ] },
        "condition": "q.block_property('ex:rotation') == 3"
      }
    ],

    "components": {
      "minecraft:geometry": "geometry.block", // 普通のブロックの形のジオメトリ
      "minecraft:material_instances": {
        "*": { // 全面
          "texture": "log_side",
          "render_method": "alpha_test"
        },
        "up": { // 上面
          "texture": "log_top",
          "render_method": "alpha_test"
        },
        "down": "up" // 下面(上面と同じ指定)
      },
      "minecraft:on_player_placing": {
        "event": "ex:on_placed"
      }
      // +その他のコンポーネント
    },

    "events": {
      "ex:on_placed": { // 下,上で0, 北,南で1, 西,東で2
        "set_block_property": { "ex:rotation": "math.floor(q.block_face/2)+1" }
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block13", "properties": { "ex:rotation": [ 1, 2, 3 ] } }, "permutations": [ { "components": { "minecraft:rotation": [ 0, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 1" }, { "components": { "minecraft:rotation": [ 90, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 2" }, { "components": { "minecraft:rotation": [ 0, 0, 90 ] }, "condition": "q.block_property('ex:rotation') == 3" } ], "components": { "minecraft:geometry": "geometry.block", // 普通のブロックの形のジオメトリ "minecraft:material_instances": { "*": { // 全面 "texture": "log_side", "render_method": "alpha_test" }, "up": { // 上面 "texture": "log_top", "render_method": "alpha_test" }, "down": "up" // 下面(上面と同じ指定) }, "minecraft:on_player_placing": { "event": "ex:on_placed" } // +その他のコンポーネント }, "events": { "ex:on_placed": { // 下,上で0, 北,南で1, 西,東で2 "set_block_property": { "ex:rotation": "math.floor(q.block_face/2)+1" } } } } }

壁のみに張り付くタイプの向きが変わるブロック

Dat

blocks/block14.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block14",
      "properties": {
        "ex:rotation": [ 2, 3, 4, 5 ]
      }
    },

    "permutations": [
      {
        "components": { "minecraft:rotation": [ 0, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 2"
      },
      {
        "components": { "minecraft:rotation": [ 0, 180, 0 ] },
        "condition": "q.block_property('ex:rotation') == 3"
      },
      {
        "components": { "minecraft:rotation": [ 0, 90, 0 ] },
        "condition": "q.block_property('ex:rotation') == 4"
      },
      {
        "components": { "minecraft:rotation": [ 0, -90, 0 ] },
        "condition": "q.block_property('ex:rotation') == 5"
      }
    ],

    "components": {
      "minecraft:on_player_placing": {
        "event": "on_placed"
      },
      "minecraft:placement_filter": {
        "conditions": [
          { "allowed_faces": [ "side" ] }
        ]
      }
      // +その他のコンポーネント
    },

    "events": {
      "on_placed": {
        "set_block_property": { "ex:rotation": "q.block_face" }
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block14", "properties": { "ex:rotation": [ 2, 3, 4, 5 ] } }, "permutations": [ { "components": { "minecraft:rotation": [ 0, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 2" }, { "components": { "minecraft:rotation": [ 0, 180, 0 ] }, "condition": "q.block_property('ex:rotation') == 3" }, { "components": { "minecraft:rotation": [ 0, 90, 0 ] }, "condition": "q.block_property('ex:rotation') == 4" }, { "components": { "minecraft:rotation": [ 0, -90, 0 ] }, "condition": "q.block_property('ex:rotation') == 5" } ], "components": { "minecraft:on_player_placing": { "event": "on_placed" }, "minecraft:placement_filter": { "conditions": [ { "allowed_faces": [ "side" ] } ] } // +その他のコンポーネント }, "events": { "on_placed": { "set_block_property": { "ex:rotation": "q.block_face" } } } } }

壁にしか置けないようになっています。トリップワイヤーフックなどがそうです。

すべての側面に張り付くタイプの向きが変わるブロック

Dat

blocks/block15.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block15",
      "properties": {
        "ex:rotation": [ 0, 1, 2, 3, 4, 5 ]
      }
    },

    "permutations": [
      {
        "components": { "minecraft:rotation": [ 180, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 0"
      },
      {
        "components": { "minecraft:rotation": [ 0, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 1"
      },
      {
        "components": { "minecraft:rotation": [ -90, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 2"
      },
      {
        "components": { "minecraft:rotation": [ 90, 0, 0 ] },
        "condition": "q.block_property('ex:rotation') == 3"
      },
      {
        "components": { "minecraft:rotation": [ 0, 0, 90 ] },
        "condition": "q.block_property('ex:rotation') == 4"
      },
      {
        "components": { "minecraft:rotation": [ 0, 0, -90 ] },
        "condition": "q.block_property('ex:rotation') == 5"
      }
    ],

    "components": {
      "minecraft:on_player_placing": {
        "event": "ex:on_placed"
      }
      // +その他のコンポーネント
    },

    "events": {
      "ex:on_placed": {
        "set_block_property": { "ex:rotation": "q.block_face" }
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block15", "properties": { "ex:rotation": [ 0, 1, 2, 3, 4, 5 ] } }, "permutations": [ { "components": { "minecraft:rotation": [ 180, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 0" }, { "components": { "minecraft:rotation": [ 0, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 1" }, { "components": { "minecraft:rotation": [ -90, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 2" }, { "components": { "minecraft:rotation": [ 90, 0, 0 ] }, "condition": "q.block_property('ex:rotation') == 3" }, { "components": { "minecraft:rotation": [ 0, 0, 90 ] }, "condition": "q.block_property('ex:rotation') == 4" }, { "components": { "minecraft:rotation": [ 0, 0, -90 ] }, "condition": "q.block_property('ex:rotation') == 5" } ], "components": { "minecraft:on_player_placing": { "event": "ex:on_placed" } // +その他のコンポーネント }, "events": { "ex:on_placed": { "set_block_property": { "ex:rotation": "q.block_face" } } } } }

たとえばボタンなどがそうです。

フェンス風隣の同じブロックとつながるブロック

Dat

blocks/block16.json

{
  "format_version": "1.16.100",
  "minecraft:block": {
    "description": {
      "identifier": "ex:block16",
      "properties": {
        "ex:direction": [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ]
      }
    },

    "permutations": [
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 4.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 4.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 0"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 1"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 2"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 3"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 4"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 16.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 16.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 5"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 6"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 7"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 8"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 9"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 4.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 4.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 10"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 11"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 12"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] },
          "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 13"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 10.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 10.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 14"
      },
      {
        "components": {
          "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 16.0 ] },
          "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 16.0 ] }
        },
        "condition": "q.block_property('ex:direction') == 15"
      }
    ],

    "components": {
      "minecraft:geometry": "geometry.fence", // 全方向に伸びていてそれぞれの腕が別のボーン
      "minecraft:material_instances": { // geometryを使う場合は必須
        "*": {
          "texture": "planks",
          "render_method": "opaque"
        }
      },
      "minecraft:part_visibility": { // ※ "q.block_property(ex:direction)"は0~15の整数
        "rules": {
          "north": "math.mod(q.block_property('ex:direction'), 2)",               // 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1
          "east": "math.mod(math.floor(q.block_property('ex:direction')/2), 2)",  // 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1
          "south": "math.mod(math.floor(q.block_property('ex:direction')/4), 2)", // 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1
          "west": "q.block_property('ex:direction') > 7"                          // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1
        }
      },
      "minecraft:ticking": {
        "looping": true,
        "range": [ 0, 0 ],
        "on_tick": { "event": "checking", "target": "self" }
      }
    },

    "events": {
      "checking": {
        "set_block_property": { // 北 + 2×東 + 4×南 + 8×西  (それぞれの方角からつながってる(=1)かつながっていないか(=0)が返ってくる)
          "ex:direction": "q.block_neighbor_has_any_tag(0,0,-1,'my_fence')+2*q.block_neighbor_has_any_tag(1,0,0,'my_fence')+4*q.block_neighbor_has_any_tag(0,0,1,'my_fence')+8*q.block_neighbor_has_any_tag(-1,0,0,'my_fence')"
        }
      }
    }
  }
}

{ "format_version": "1.16.100", "minecraft:block": { "description": { "identifier": "ex:block16", "properties": { "ex:direction": [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ] } }, "permutations": [ { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 4.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 4.0 ] } }, "condition": "q.block_property('ex:direction') == 0" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 1" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] } }, "condition": "q.block_property('ex:direction') == 2" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 3" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 4.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 4" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 16.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 4.0, 16.0, 16.0 ] } }, "condition": "q.block_property('ex:direction') == 5" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 6" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] } }, "condition": "q.block_property('ex:direction') == 7" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 4.0 ] } }, "condition": "q.block_property('ex:direction') == 8" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 9" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 4.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 4.0 ] } }, "condition": "q.block_property('ex:direction') == 10" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 11" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -2.0 ], "size": [ 10.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 12" }, { "components": { "minecraft:entity_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] }, "minecraft:pick_collision": { "origin": [ -2.0, 0.0, -8.0 ], "size": [ 10.0, 16.0, 16.0 ] } }, "condition": "q.block_property('ex:direction') == 13" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 10.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -2.0 ], "size": [ 16.0, 16.0, 10.0 ] } }, "condition": "q.block_property('ex:direction') == 14" }, { "components": { "minecraft:entity_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 16.0 ] }, "minecraft:pick_collision": { "origin": [ -8.0, 0.0, -8.0 ], "size": [ 16.0, 16.0, 16.0 ] } }, "condition": "q.block_property('ex:direction') == 15" } ], "components": { "minecraft:geometry": "geometry.fence", // 全方向に伸びていてそれぞれの腕が別のボーン "minecraft:material_instances": { // geometryを使う場合は必須 "*": { "texture": "planks", "render_method": "opaque" } }, "minecraft:part_visibility": { // ※ "q.block_property(ex:direction)"は0~15の整数 "rules": { "north": "math.mod(q.block_property('ex:direction'), 2)", // 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1 "east": "math.mod(math.floor(q.block_property('ex:direction')/2), 2)", // 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1 "south": "math.mod(math.floor(q.block_property('ex:direction')/4), 2)", // 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1 "west": "q.block_property('ex:direction') > 7" // 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 } }, "minecraft:ticking": { "looping": true, "range": [ 0, 0 ], "on_tick": { "event": "checking", "target": "self" } } }, "events": { "checking": { "set_block_property": { // 北 + 2×東 + 4×南 + 8×西 (それぞれの方角からつながってる(=1)かつながっていないか(=0)が返ってくる) "ex:direction": "q.block_neighbor_has_any_tag(0,0,-1,'my_fence')+2*q.block_neighbor_has_any_tag(1,0,0,'my_fence')+4*q.block_neighbor_has_any_tag(0,0,1,'my_fence')+8*q.block_neighbor_has_any_tag(-1,0,0,'my_fence')" } } } } }

バニラのブロックとつながるようにするためにはぜんぶ指定する必要があります。

当たり判定などはMolangが対応してないのでパーミュテーションで一つずつ指定するしかないです。

できないこと

バニラのブロックに変更を加える