PolygonPathFinder

继承： Resource < RefCounted < Object

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方法

方法说明

PackedVector2Array find_path ( from: Vector2, to: Vector2 )

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Rect2 get_bounds ( ) const¹

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Vector2 get_closest_point ( point: Vector2 ) const¹

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PackedVector2Array get_intersections ( from: Vector2, to: Vector2 ) const¹

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float get_point_penalty ( idx: int ) const¹

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bool is_point_inside ( point: Vector2 ) const¹

Returns true if point falls inside the polygon area.

    var polygon_path_finder = PolygonPathFinder.new()
    var points = [Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(0.0, 1.0)]
    var connections = [0, 1, 1, 2, 2, 0]
    polygon_path_finder.setup(points, connections)
    print(polygon_path_finder.is_point_inside(Vector2(0.2, 0.2))) # Prints true
    print(polygon_path_finder.is_point_inside(Vector2(1.0, 1.0))) # Prints false

    var polygonPathFinder = new PolygonPathFinder();
    var points = new Vector2[]
    {
        new Vector2(0.0f, 0.0f),
        new Vector2(1.0f, 0.0f),
        new Vector2(0.0f, 1.0f)
    };
    var connections = new int[] { 0, 1, 1, 2, 2, 0 };
    polygonPathFinder.Setup(points, connections);
    GD.Print(polygonPathFinder.IsPointInside(new Vector2(0.2f, 0.2f))); // Prints true
    GD.Print(polygonPathFinder.IsPointInside(new Vector2(1.0f, 1.0f))); // Prints false

void set_point_penalty ( idx: int, penalty: float )

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void setup ( points: PackedVector2Array, connections: PackedInt32Array )

Sets up PolygonPathFinder with an array of points that define the vertices of the polygon, and an array of indices that determine the edges of the polygon.

The length of connections must be even, returns an error if odd.

    var polygon_path_finder = PolygonPathFinder.new()
    var points = [Vector2(0.0, 0.0), Vector2(1.0, 0.0), Vector2(0.0, 1.0)]
    var connections = [0, 1, 1, 2, 2, 0]
    polygon_path_finder.setup(points, connections)

    var polygonPathFinder = new PolygonPathFinder();
    var points = new Vector2[]
    {
        new Vector2(0.0f, 0.0f),
        new Vector2(1.0f, 0.0f),
        new Vector2(0.0f, 1.0f)
    };
    var connections = new int[] { 0, 1, 1, 2, 2, 0 };
    polygonPathFinder.Setup(points, connections);