godot-docs/classes/class_gridmap.rst

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.. DO NOT EDIT THIS FILE, but the GridMap.xml source instead.
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.. _class_GridMap:

GridMap
=======

**Inherits:** :ref:`Spatial<class_Spatial>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

**Category:** Core

Brief Description
-----------------

Node for 3D tile-based maps.

Properties
----------

+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`bool<class_bool>`               | :ref:`cell_center_x<class_GridMap_property_cell_center_x>`       | true               |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`bool<class_bool>`               | :ref:`cell_center_y<class_GridMap_property_cell_center_y>`       | true               |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`bool<class_bool>`               | :ref:`cell_center_z<class_GridMap_property_cell_center_z>`       | true               |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`int<class_int>`                 | :ref:`cell_octant_size<class_GridMap_property_cell_octant_size>` | 8                  |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`float<class_float>`             | :ref:`cell_scale<class_GridMap_property_cell_scale>`             | 1.0                |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`Vector3<class_Vector3>`         | :ref:`cell_size<class_GridMap_property_cell_size>`               | Vector3( 2, 2, 2 ) |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`int<class_int>`                 | :ref:`collision_layer<class_GridMap_property_collision_layer>`   | 1                  |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`int<class_int>`                 | :ref:`collision_mask<class_GridMap_property_collision_mask>`     | 1                  |
+---------------------------------------+------------------------------------------------------------------+--------------------+
| :ref:`MeshLibrary<class_MeshLibrary>` | :ref:`mesh_library<class_GridMap_property_mesh_library>`         |                    |
+---------------------------------------+------------------------------------------------------------------+--------------------+

Methods
-------

+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`clear<class_GridMap_method_clear>` **(** **)**                                                                                                                                                            |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`clear_baked_meshes<class_GridMap_method_clear_baked_meshes>` **(** **)**                                                                                                                                  |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`RID<class_RID>`         | :ref:`get_bake_mesh_instance<class_GridMap_method_get_bake_mesh_instance>` **(** :ref:`int<class_int>` idx **)**                                                                                                |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>`     | :ref:`get_bake_meshes<class_GridMap_method_get_bake_meshes>` **(** **)**                                                                                                                                        |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`         | :ref:`get_cell_item<class_GridMap_method_get_cell_item>` **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const                                                            |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`         | :ref:`get_cell_item_orientation<class_GridMap_method_get_cell_item_orientation>` **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const                                    |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`       | :ref:`get_collision_layer_bit<class_GridMap_method_get_collision_layer_bit>` **(** :ref:`int<class_int>` bit **)** const                                                                                        |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`       | :ref:`get_collision_mask_bit<class_GridMap_method_get_collision_mask_bit>` **(** :ref:`int<class_int>` bit **)** const                                                                                          |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>`     | :ref:`get_meshes<class_GridMap_method_get_meshes>` **(** **)**                                                                                                                                                  |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>`     | :ref:`get_used_cells<class_GridMap_method_get_used_cells>` **(** **)** const                                                                                                                                    |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`make_baked_meshes<class_GridMap_method_make_baked_meshes>` **(** :ref:`bool<class_bool>` gen_lightmap_uv=false, :ref:`float<class_float>` lightmap_uv_texel_size=0.1 **)**                                |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>` | :ref:`map_to_world<class_GridMap_method_map_to_world>` **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const                                                              |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`resource_changed<class_GridMap_method_resource_changed>` **(** :ref:`Resource<class_Resource>` resource **)**                                                                                             |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`set_cell_item<class_GridMap_method_set_cell_item>` **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z, :ref:`int<class_int>` item, :ref:`int<class_int>` orientation=0 **)** |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`set_clip<class_GridMap_method_set_clip>` **(** :ref:`bool<class_bool>` enabled, :ref:`bool<class_bool>` clipabove=true, :ref:`int<class_int>` floor=0, Vector3.Axis axis=0 **)**                          |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`set_collision_layer_bit<class_GridMap_method_set_collision_layer_bit>` **(** :ref:`int<class_int>` bit, :ref:`bool<class_bool>` value **)**                                                               |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                          | :ref:`set_collision_mask_bit<class_GridMap_method_set_collision_mask_bit>` **(** :ref:`int<class_int>` bit, :ref:`bool<class_bool>` value **)**                                                                 |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>` | :ref:`world_to_map<class_GridMap_method_world_to_map>` **(** :ref:`Vector3<class_Vector3>` pos **)** const                                                                                                      |
+-------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

Signals
-------

.. _class_GridMap_signal_cell_size_changed:

- **cell_size_changed** **(** :ref:`Vector3<class_Vector3>` cell_size **)**

Constants
---------

.. _class_GridMap_constant_INVALID_CELL_ITEM:

- **INVALID_CELL_ITEM** = **-1** --- Invalid cell item that can be used in :ref:`set_cell_item<class_GridMap_method_set_cell_item>` to clear cells (or represent an empty cell in :ref:`get_cell_item<class_GridMap_method_get_cell_item>`).

Description
-----------

GridMap lets you place meshes on a grid interactively. It works both from the editor and can help you create in-game level editors.

GridMaps use a :ref:`MeshLibrary<class_MeshLibrary>` which contain a list of tiles: meshes with materials plus optional collisions and extra elements.

A GridMap contains a collection of cells. Each grid cell refers to a :ref:`MeshLibrary<class_MeshLibrary>` item. All cells in the map have the same dimensions.

A GridMap is split into a sparse collection of octants for efficient rendering and physics processing. Every octant has the same dimensions and can contain several cells.

Tutorials
---------

- :doc:`../tutorials/3d/using_gridmaps`

Property Descriptions
---------------------

.. _class_GridMap_property_cell_center_x:

- :ref:`bool<class_bool>` **cell_center_x**

+-----------+---------------------+
| *Default* | true                |
+-----------+---------------------+
| *Setter*  | set_center_x(value) |
+-----------+---------------------+
| *Getter*  | get_center_x()      |
+-----------+---------------------+

If ``true``, grid items are centered on the X axis.

----

.. _class_GridMap_property_cell_center_y:

- :ref:`bool<class_bool>` **cell_center_y**

+-----------+---------------------+
| *Default* | true                |
+-----------+---------------------+
| *Setter*  | set_center_y(value) |
+-----------+---------------------+
| *Getter*  | get_center_y()      |
+-----------+---------------------+

If ``true``, grid items are centered on the Y axis.

----

.. _class_GridMap_property_cell_center_z:

- :ref:`bool<class_bool>` **cell_center_z**

+-----------+---------------------+
| *Default* | true                |
+-----------+---------------------+
| *Setter*  | set_center_z(value) |
+-----------+---------------------+
| *Getter*  | get_center_z()      |
+-----------+---------------------+

If ``true``, grid items are centered on the Z axis.

----

.. _class_GridMap_property_cell_octant_size:

- :ref:`int<class_int>` **cell_octant_size**

+-----------+------------------------+
| *Default* | 8                      |
+-----------+------------------------+
| *Setter*  | set_octant_size(value) |
+-----------+------------------------+
| *Getter*  | get_octant_size()      |
+-----------+------------------------+

The size of each octant measured in number of cells. This applies to all three axis.

----

.. _class_GridMap_property_cell_scale:

- :ref:`float<class_float>` **cell_scale**

+-----------+-----------------------+
| *Default* | 1.0                   |
+-----------+-----------------------+
| *Setter*  | set_cell_scale(value) |
+-----------+-----------------------+
| *Getter*  | get_cell_scale()      |
+-----------+-----------------------+

----

.. _class_GridMap_property_cell_size:

- :ref:`Vector3<class_Vector3>` **cell_size**

+-----------+----------------------+
| *Default* | Vector3( 2, 2, 2 )   |
+-----------+----------------------+
| *Setter*  | set_cell_size(value) |
+-----------+----------------------+
| *Getter*  | get_cell_size()      |
+-----------+----------------------+

The dimensions of the grid's cells.

----

.. _class_GridMap_property_collision_layer:

- :ref:`int<class_int>` **collision_layer**

+-----------+----------------------------+
| *Default* | 1                          |
+-----------+----------------------------+
| *Setter*  | set_collision_layer(value) |
+-----------+----------------------------+
| *Getter*  | get_collision_layer()      |
+-----------+----------------------------+

----

.. _class_GridMap_property_collision_mask:

- :ref:`int<class_int>` **collision_mask**

+-----------+---------------------------+
| *Default* | 1                         |
+-----------+---------------------------+
| *Setter*  | set_collision_mask(value) |
+-----------+---------------------------+
| *Getter*  | get_collision_mask()      |
+-----------+---------------------------+

----

.. _class_GridMap_property_mesh_library:

- :ref:`MeshLibrary<class_MeshLibrary>` **mesh_library**

+----------+-------------------------+
| *Setter* | set_mesh_library(value) |
+----------+-------------------------+
| *Getter* | get_mesh_library()      |
+----------+-------------------------+

The assigned :ref:`MeshLibrary<class_MeshLibrary>`.

Method Descriptions
-------------------

.. _class_GridMap_method_clear:

- void **clear** **(** **)**

Clear all cells.

----

.. _class_GridMap_method_clear_baked_meshes:

- void **clear_baked_meshes** **(** **)**

----

.. _class_GridMap_method_get_bake_mesh_instance:

- :ref:`RID<class_RID>` **get_bake_mesh_instance** **(** :ref:`int<class_int>` idx **)**

----

.. _class_GridMap_method_get_bake_meshes:

- :ref:`Array<class_Array>` **get_bake_meshes** **(** **)**

----

.. _class_GridMap_method_get_cell_item:

- :ref:`int<class_int>` **get_cell_item** **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const

The :ref:`MeshLibrary<class_MeshLibrary>` item index located at the grid-based X, Y and Z coordinates. If the cell is empty, :ref:`INVALID_CELL_ITEM<class_GridMap_constant_INVALID_CELL_ITEM>` will be returned.

----

.. _class_GridMap_method_get_cell_item_orientation:

- :ref:`int<class_int>` **get_cell_item_orientation** **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const

The orientation of the cell at the grid-based X, Y and Z coordinates. -1 is returned if the cell is empty.

----

.. _class_GridMap_method_get_collision_layer_bit:

- :ref:`bool<class_bool>` **get_collision_layer_bit** **(** :ref:`int<class_int>` bit **)** const

----

.. _class_GridMap_method_get_collision_mask_bit:

- :ref:`bool<class_bool>` **get_collision_mask_bit** **(** :ref:`int<class_int>` bit **)** const

----

.. _class_GridMap_method_get_meshes:

- :ref:`Array<class_Array>` **get_meshes** **(** **)**

Array of :ref:`Transform<class_Transform>` and :ref:`Mesh<class_Mesh>` references corresponding to the non-empty cells in the grid. The transforms are specified in world space.

----

.. _class_GridMap_method_get_used_cells:

- :ref:`Array<class_Array>` **get_used_cells** **(** **)** const

Array of :ref:`Vector3<class_Vector3>` with the non-empty cell coordinates in the grid map.

----

.. _class_GridMap_method_make_baked_meshes:

- void **make_baked_meshes** **(** :ref:`bool<class_bool>` gen_lightmap_uv=false, :ref:`float<class_float>` lightmap_uv_texel_size=0.1 **)**

----

.. _class_GridMap_method_map_to_world:

- :ref:`Vector3<class_Vector3>` **map_to_world** **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z **)** const

----

.. _class_GridMap_method_resource_changed:

- void **resource_changed** **(** :ref:`Resource<class_Resource>` resource **)**

----

.. _class_GridMap_method_set_cell_item:

- void **set_cell_item** **(** :ref:`int<class_int>` x, :ref:`int<class_int>` y, :ref:`int<class_int>` z, :ref:`int<class_int>` item, :ref:`int<class_int>` orientation=0 **)**

Set the mesh index for the cell referenced by its grid-based X, Y and Z coordinates.

A negative item index will clear the cell.

Optionally, the item's orientation can be passed.

----

.. _class_GridMap_method_set_clip:

- void **set_clip** **(** :ref:`bool<class_bool>` enabled, :ref:`bool<class_bool>` clipabove=true, :ref:`int<class_int>` floor=0, Vector3.Axis axis=0 **)**

----

.. _class_GridMap_method_set_collision_layer_bit:

- void **set_collision_layer_bit** **(** :ref:`int<class_int>` bit, :ref:`bool<class_bool>` value **)**

----

.. _class_GridMap_method_set_collision_mask_bit:

- void **set_collision_mask_bit** **(** :ref:`int<class_int>` bit, :ref:`bool<class_bool>` value **)**

----

.. _class_GridMap_method_world_to_map:

- :ref:`Vector3<class_Vector3>` **world_to_map** **(** :ref:`Vector3<class_Vector3>` pos **)** const