Base resource for [AnimationTree] nodes. Base resource for [AnimationTree] nodes. In general it's not used directly but you can create custom ones with custom blending formulas. Inherit this when creating nodes mainly for use in [AnimationNodeBlendTree], otherwise [AnimationRootNode] should be used instead. Add an input to the node. This is only useful for nodes created for use in an [AnimationNodeBlendTree] Blend an animation by "blend" amount (name must be valid in the linked [AnimationPlayer]). A time and delta mas be passed, as well as whether seek happened. Blend an input. This is only useful for nodes created for an [AnimationNodeBlendTree]. Time is a delta, unless "seek" is [code]true[/code], in which case it is absolute. A filter mode may be optionally passed. Blend another animaiton node (in case this node contains children animation nodes). This function is only useful if you inherit from [AnimationRootNode] instead, else editors will not display your node for addition. Get the text caption for this node (used by some editors) Get the a child node by index (used by editors inheriting from [AnimationRootNode]). Get all children nodes, in order as a name:node dictionary. Only useful when inheriting [AnimationRootNode]. Amount of inputs in this node, only useful for nodes that go into [AnimationNodeBlendTree]. Get the name of an input by index. Get the value of a parameter. Parameters are custom local memory used for your nodes, given a resource can be reused in multiple trees. Get the default value of a parameter. Parameters are custom local memory used for your nodes, given a resource can be reused in multiple trees. Get the property information for parameter. Parameters are custom local memory used for your nodes, given a resource can be reused in multiple trees. Format is similar to [method Object.get_property_list]. Returns [code]true[/code] whether you want the blend tree editor to display filter editing on this node. Returns [code]true[/code] whether a given path is filtered. Called when a custom node is processed. The argument "time" is relative, unless "seek" is [code]true[/code] (in which case it is absolute). Here, call the [method blend_input], [method blend_node] or [method blend_animation] functions. You can also use [method get_parameter] and [method set_parameter] to modify local memory. This function returns the time left for the current animation to finish (if unsure, just pass the value from the main blend being called). Remove an input, call this only when inactive. Add/Remove a path for the filter. Set a custom parameter. These are used as local storage, because resources can be reused across the tree or scenes. Returns whether filtering is enabled. Called when the node was removed from the graph. Emitted by nodes that inherit from this class and that have an internal tree when one of their nodes changes. The nodes that emit this signal are [AnimationNodeBlendSpace1D], [AnimationNodeBlendSpace2D], [AnimationNodeStateMachine], and [AnimationNodeBlendTree]. Do not use filtering. Paths matching the filter will be allowed to pass. Paths matching the filter will be discarded. Paths matching the filter will be blended (by the blend value).