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Custom Trapdoors

experimental

intermediate

Table of Contents
Custom Trapdoors

PLEASE READ

This page will be part of a rewrite to accomodate for the removal of the Holiday Creator Feature experimental toggle. Expect this page to be rewritten or removed when this happens.

FORMAT & MIN ENGINE VERSION 1.20.60

This tutorial assumes a good understanding of blocks. Check out the blocks guide before starting.

EXPERIMENTAL

Requires Holiday Creator Features to trigger block events.

Introduction

Making custom trapdoors is an often difficult task to do, but after reading this tutorial you'll understand how they work in case you find any drawbacks during recreating them, and you'll be provided with a template for you to use.

Custom Trapdoor

This will create a vanilla-like custom trapdoor.

BP/blocks/custom_trapdoor.jsonCopy
json
{
  "format_version": "1.20.60",
  "minecraft:block": {
    "description": {
      "identifier": "wiki:custom_trapdoor",
      "menu_category": {
        "category": "construction",
        "group": "itemGroup.name.trapdoor"
      },
      "traits": {
        "minecraft:placement_position": {
          "enabled_states": ["minecraft:vertical_half"]
        },
        "minecraft:placement_direction": {
          "enabled_states": ["minecraft:cardinal_direction"]
        }
      },
      "states": {
        "wiki:open": [false, true]
      }
    },
    "permutations": [
      // Top Closed
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'north' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, 0, 180] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'south' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [180, 0, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'east' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [180, -270, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'west' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [180, 270, 0] }
        }
      },
      // Top Open
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'north' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [-270, 0, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'south' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [270, 0, -180] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'east' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, 270, 90] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'top' && q.block_state('minecraft:cardinal_direction') == 'west' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": {
            "rotation": [180, -270, -270]
          }
        }
      },
      // Bottom Closed
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'north' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, 0, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'south' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, 180, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'east' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, 270, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'west' && !q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, -270, 0] }
        }
      },
      // Bottom Open
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'north' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [90, 0, 180] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'south' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [270, 0, 0] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'east' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [0, -270, 90] }
        }
      },
      {
        "condition": "q.block_state('minecraft:vertical_half') == 'bottom' && q.block_state('minecraft:cardinal_direction') == 'west' && q.block_state('wiki:open')",
        "components": {
          "minecraft:transformation": { "rotation": [180, 270, -270] }
        }
      }
    ],
    "components": {
      "minecraft:collision_box": {
        "origin": [-8, 0, -8],
        "size": [16, 3, 16]
      },
      "minecraft:selection_box": {
        "origin": [-8, 0, -8],
        "size": [16, 3, 16]
      },
      "minecraft:geometry": "geometry.trapdoor",
      "minecraft:material_instances": {
        "*": {
          "texture": "spruce_trapdoor",
          "render_method": "alpha_test"
        }
      },
      "minecraft:on_interact": {
        "event": "wiki:toggle"
      }
    },
    "events": {
      "wiki:toggle": {
        "sequence": [
          {
            "set_block_state": {
              "wiki:open": "!q.block_state('wiki:open')"
            }
          },
          {
            "condition": "q.block_state('wiki:open')",
            "run_command": {
              "command": "playsound close.wooden_trapdoor @a ~~~ 0.9 0.9"
            }
          },
          {
            "condition": "!q.block_state('wiki:open')",
            "run_command": {
              "command": "playsound open.wooden_trapdoor @a ~~~ 0.9 0.9"
            }
          }
        ]
      }
    }
  }
}
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Geometry

This will be the geometry used for your custom trapdoors.

Geometry JSON
RP/models/blocks/trapdoor.geo.jsonCopy
json
{
  "format_version": "1.12.0",
  "minecraft:geometry": [
    {
      "description": {
        "identifier": "geometry.trapdoor",
        "texture_width": 16,
        "texture_height": 16,
        "visible_bounds_width": 2,
        "visible_bounds_height": 1.5,
        "visible_bounds_offset": [0, 0.25, 0]
      },
      "bones": [
        {
          "name": "trapdoor",
          "pivot": [0, 0, 0],
          "cubes": [
            {
              "origin": [-8, 0, -8],
              "size": [16, 3, 16],
              "uv": {
                "north": {"uv": [16, 3], "uv_size": [-16, -3]},
                "east": {"uv": [16, 3], "uv_size": [-16, -3]},
                "south": {"uv": [16, 3], "uv_size": [-16, -3]},
                "west": {"uv": [16, 3], "uv_size": [-16, -3]},
                "up": {"uv": [16, 16], "uv_size": [-16, -16]},
                "down": {"uv": [0, 0], "uv_size": [16, 16]}
              }
            }
          ]
        }
      ]
    }
  ]
}
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TIP

Vanilla trapdoors have a few issues in the direction of the texture in certain faces and having a height of 2.95 when it should be 3. This block template and geometry fixes both of those issues.

Edit Custom Trapdoors on Github.

Contributors