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<?xml version="1.0" encoding="UTF-8" ?>
<class name="NavigationPolygon" inherits="Resource" version="4.0">
<brief_description>
A node that has methods to draw outlines or use indices of vertices to create navigation polygons.
</brief_description>
<description>
There are two ways to create polygons. Either by using the [method add_outline] method, or using the [method add_polygon] method.
Using [method add_outline]:
[codeblock]
var polygon = NavigationPolygon.new()
var outline = PoolVector2Array([Vector2(0, 0), Vector2(0, 50), Vector2(50, 50), Vector2(50, 0)])
polygon.add_outline(outline)
polygon.make_polygons_from_outlines()
$NavigationPolygonInstance.navpoly = polygon
[/codeblock]
Using [method add_polygon] and indices of the vertices array.
[codeblock]
var polygon = NavigationPolygon.new()
var vertices = PoolVector2Array([Vector2(0, 0), Vector2(0, 50), Vector2(50, 50), Vector2(50, 0)])
polygon.set_vertices(vertices)
var indices = PoolIntArray(0, 3, 1)
polygon.add_polygon(indices)
$NavigationPolygonInstance.navpoly = polygon
[/codeblock]
</description>
<tutorials>
</tutorials>
<methods>
<method name="add_outline">
<return type="void">
</return>
<argument index="0" name="outline" type="PoolVector2Array">
</argument>
<description>
Appends a [PoolVector2Array] that contains the vertices of an outline to the internal array that contains all the outlines. You have to call [method make_polygons_from_outlines] in order for this array to be converted to polygons that the engine will use.
</description>
</method>
<method name="add_outline_at_index">
<return type="void">
</return>
<argument index="0" name="outline" type="PoolVector2Array">
</argument>
<argument index="1" name="index" type="int">
</argument>
<description>
Adds a [PoolVector2Array] that contains the vertices of an outline to the internal array that contains all the outlines at a fixed position. You have to call [method make_polygons_from_outlines] in order for this array to be converted to polygons that the engine will use.
</description>
</method>
<method name="add_polygon">
<return type="void">
</return>
<argument index="0" name="polygon" type="PoolIntArray">
</argument>
<description>
Adds a polygon using the indices of the vertices you get when calling [method get_vertices].
</description>
</method>
<method name="clear_outlines">
<return type="void">
</return>
<description>
Clears the array of the outlines, but it doesn't clear the vertices and the polygons that were created by them.
</description>
</method>
<method name="clear_polygons">
<return type="void">
</return>
<description>
Clears the array of polygons, but it doesn't clear the array of outlines and vertices.
</description>
</method>
<method name="get_outline" qualifiers="const">
<return type="PoolVector2Array">
</return>
<argument index="0" name="idx" type="int">
</argument>
<description>
Returns a [PoolVector2Array] containing the vertices of an outline that was created in the editor or by script.
</description>
</method>
<method name="get_outline_count" qualifiers="const">
<return type="int">
</return>
<description>
Returns the number of outlines that were created in the editor or by script.
</description>
</method>
<method name="get_polygon">
<return type="PoolIntArray">
</return>
<argument index="0" name="idx" type="int">
</argument>
<description>
Returns a [PoolIntArray] containing the indices of the vertices of a created polygon.
</description>
</method>
<method name="get_polygon_count" qualifiers="const">
<return type="int">
</return>
<description>
Returns the count of all polygons.
</description>
</method>
<method name="get_vertices" qualifiers="const">
<return type="PoolVector2Array">
</return>
<description>
Returns a [PoolVector2Array] containing all the vertices being used to create the polygons.
</description>
</method>
<method name="make_polygons_from_outlines">
<return type="void">
</return>
<description>
Creates polygons from the outlines added in the editor or by script.
</description>
</method>
<method name="remove_outline">
<return type="void">
</return>
<argument index="0" name="idx" type="int">
</argument>
<description>
Removes an outline created in the editor or by script. You have to call [method make_polygons_from_outlines] for the polygons to update.
</description>
</method>
<method name="set_outline">
<return type="void">
</return>
<argument index="0" name="idx" type="int">
</argument>
<argument index="1" name="outline" type="PoolVector2Array">
</argument>
<description>
Changes an outline created in the editor or by script. You have to call [method make_polygons_from_outlines] for the polygons to update.
</description>
</method>
<method name="set_vertices">
<return type="void">
</return>
<argument index="0" name="vertices" type="PoolVector2Array">
</argument>
<description>
Sets the vertices that can be then indexed to create polygons with the [method add_polygon] method.
</description>
</method>
</methods>
<constants>
</constants>
</class>
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