AnimationNodeBlendSpace2D

Inherits: AnimationRootNode < AnimationNode < Resource < RefCounted < Object

A set of AnimationRootNodes placed on 2D coordinates, crossfading between the three adjacent ones. Used by AnimationTree.

Description

A resource used by AnimationNodeBlendTree.

AnimationNodeBlendSpace2D represents a virtual 2D space on which AnimationRootNodes are placed. Outputs the linear blend of the three adjacent animations using a Vector2 weight. Adjacent in this context means the three AnimationRootNodes making up the triangle that contains the current value.

You can add vertices to the blend space with add_blend_point and automatically triangulate it by setting auto_triangles to true. Otherwise, use add_triangle and remove_triangle to triangulate the blend space by hand.

Tutorials

• Using AnimationTree

• Third Person Shooter (TPS) Demo

Properties

Methods

Signals

triangles_updated() 🔗

Emitted every time the blend space’s triangles are created, removed, or when one of their vertices changes position.

Enumerations

enum BlendMode: 🔗

BlendMode BLEND_MODE_INTERPOLATED = 0

The interpolation between animations is linear.

BlendMode BLEND_MODE_DISCRETE = 1

The blend space plays the animation of the animation node which blending position is closest to. Useful for frame-by-frame 2D animations.

BlendMode BLEND_MODE_DISCRETE_CARRY = 2

Similar to BLEND_MODE_DISCRETE, but starts the new animation at the last animation’s playback position.

Property Descriptions

bool auto_triangles = true 🔗

• void set_auto_triangles(value: bool)

• bool get_auto_triangles()

If true, the blend space is triangulated automatically. The mesh updates every time you add or remove points with add_blend_point and remove_blend_point.

BlendMode blend_mode = 0 🔗

• void set_blend_mode(value: BlendMode)

• BlendMode get_blend_mode()

Controls the interpolation between animations. See BlendMode constants.

Vector2 max_space = Vector2(1, 1) 🔗

• void set_max_space(value: Vector2)

• Vector2 get_max_space()

The blend space’s X and Y axes’ upper limit for the points’ position. See add_blend_point.

Vector2 min_space = Vector2(-1, -1) 🔗

• void set_min_space(value: Vector2)

• Vector2 get_min_space()

The blend space’s X and Y axes’ lower limit for the points’ position. See add_blend_point.

Vector2 snap = Vector2(0.1, 0.1) 🔗

• void set_snap(value: Vector2)

• Vector2 get_snap()

Position increment to snap to when moving a point.

bool sync = false 🔗

• void set_use_sync(value: bool)

• bool is_using_sync()

If false, the blended animations’ frame are stopped when the blend value is 0.

If true, forcing the blended animations to advance frame.

String x_label = "x" 🔗

• void set_x_label(value: String)

• String get_x_label()

Name of the blend space’s X axis.

String y_label = "y" 🔗

• void set_y_label(value: String)

• String get_y_label()

Name of the blend space’s Y axis.

Method Descriptions

void add_blend_point(node: AnimationRootNode, pos: Vector2, at_index: int = -1) 🔗

Adds a new point that represents a node at the position set by pos. You can insert it at a specific index using the at_index argument. If you use the default value for at_index, the point is inserted at the end of the blend points array.

void add_triangle(x: int, y: int, z: int, at_index: int = -1) 🔗

Creates a new triangle using three points x, y, and z. Triangles can overlap. You can insert the triangle at a specific index using the at_index argument. If you use the default value for at_index, the point is inserted at the end of the blend points array.

int get_blend_point_count() const 🔗

Returns the number of points in the blend space.

AnimationRootNode get_blend_point_node(point: int) const 🔗

Returns the AnimationRootNode referenced by the point at index point.

Vector2 get_blend_point_position(point: int) const 🔗

Returns the position of the point at index point.

int get_triangle_count() const 🔗

Returns the number of triangles in the blend space.

int get_triangle_point(triangle: int, point: int) 🔗

Returns the position of the point at index point in the triangle of index triangle.

void remove_blend_point(point: int) 🔗

Removes the point at index point from the blend space.

void remove_triangle(triangle: int) 🔗

Removes the triangle at index triangle from the blend space.

void set_blend_point_node(point: int, node: AnimationRootNode) 🔗

Changes the AnimationNode referenced by the point at index point.

void set_blend_point_position(point: int, pos: Vector2) 🔗

Updates the position of the point at index point in the blend space.

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