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nvidia-rtx-godot / scene / animation / animation_blend_space_1d.h

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/**************************************************************************/
/*  animation_blend_space_1d.h                                            */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#pragma once

#include "scene/animation/animation_tree.h"

class AnimationNodeBlendSpace1D : public AnimationRootNode {
	GDCLASS(AnimationNodeBlendSpace1D, AnimationRootNode);

public:
	enum BlendMode {
		BLEND_MODE_INTERPOLATED,
		BLEND_MODE_DISCRETE,
		BLEND_MODE_DISCRETE_CARRY,
	};

	enum SyncMode {
		SYNC_MODE_NONE, // Inactive animations are frozen (not advanced).
		SYNC_MODE_INDEPENDENT, // Inactive animations advance with weight=0 (previous "sync" behavior).
		SYNC_MODE_CYCLIC_MUTABLE, // Time-scaled with blend-weight-dependent cycle length (self-normalizing).
		SYNC_MODE_CYCLIC_CONSTANT, // Time-scaled to complete one cycle in cyclic_length seconds.
	};

protected:
	enum {
		MAX_BLEND_POINTS = 64
	};

	struct BlendPoint {
		StringName name;
		Ref<AnimationRootNode> node;
		float position = 0.0;
	};

	BlendPoint blend_points[MAX_BLEND_POINTS];
	int blend_points_used = 0;

	float max_space = 1.0;
	float min_space = -1.0;

	float snap = 0.1;

	String value_label = "value";

	bool _set(const StringName &p_name, const Variant &p_value);
	bool _get(const StringName &p_name, Variant &r_ret) const;
	void _get_property_list(List<PropertyInfo> *p_list) const;

	StringName blend_position = "blend_position";
	StringName closest = "closest";

	BlendMode blend_mode = BLEND_MODE_INTERPOLATED;

	SyncMode sync_mode = SYNC_MODE_NONE;
	double cyclic_length = 0.0;
	double inverted_cycle_length = 0.0; // Cached 1/cyclic_length.
	LocalVector<double> cached_lengths;
	bool lengths_dirty = true;

	static void _bind_methods();

	virtual void _tree_changed() override;
	virtual void _animation_node_renamed(const ObjectID &p_oid, const String &p_old_name, const String &p_new_name) override;
	virtual void _animation_node_removed(const ObjectID &p_oid, const StringName &p_node) override;

	bool is_contain_invalid_point = false;
	void _check_can_sync();

#ifndef DISABLE_DEPRECATED
	void _add_blend_point_bind_compat_110369(const Ref<AnimationRootNode> &p_node, float p_position, int p_at_index = -1);
	static void _bind_compatibility_methods();
#endif

public:
	virtual void validate_node(const AnimationTree *p_tree, const StringName &p_path) const override;

	virtual void get_parameter_list(LocalVector<PropertyInfo> *r_list) const override;
	virtual Variant get_parameter_default_value(const StringName &p_parameter) const override;

	virtual void get_child_nodes(LocalVector<ChildNode> *r_child_nodes) override;

	void add_blend_point(const Ref<AnimationRootNode> &p_node, float p_position, int p_at_index = -1, const StringName &p_name = "");
	void set_blend_point_position(int p_point, float p_position);
	void set_blend_point_node(int p_point, const Ref<AnimationRootNode> &p_node);

	float get_blend_point_position(int p_point) const;
	Ref<AnimationRootNode> get_blend_point_node(int p_point) const;
	void set_blend_point_name(int p_point, const StringName &p_name);
	const StringName &get_blend_point_name(int p_point) const;
	int find_blend_point_by_name(const StringName &p_name) const;
	void remove_blend_point(int p_point);
	int get_blend_point_count() const;

	void reorder_blend_point(int p_from_index, int p_to_index);

	void set_min_space(float p_min);
	float get_min_space() const;

	void set_max_space(float p_max);
	float get_max_space() const;

	void set_snap(float p_snap);
	float get_snap() const;

	void set_value_label(const String &p_label);
	String get_value_label() const;

	void set_blend_mode(BlendMode p_blend_mode);
	BlendMode get_blend_mode() const;

	void set_cyclic_length(double p_length);
	double get_cyclic_length() const;

#ifndef DISABLE_DEPRECATED
	void set_use_sync(bool p_sync); // Compat: maps to SYNC_MODE_INDEPENDENT or SYNC_MODE_NONE.
	bool is_using_sync() const; // Compat: returns sync_mode != SYNC_MODE_NONE.
#endif // DISABLE_DEPRECATED

	void set_sync_mode(SyncMode p_sync_mode);
	SyncMode get_sync_mode() const;

	virtual NodeTimeInfo _process(ProcessState &p_process_state, AnimationNodeInstance &p_instance, const AnimationMixer::PlaybackInfo &p_playback_info, bool p_test_only = false) override;
	String get_caption() const override;

	Ref<AnimationNode> get_child_by_name(const StringName &p_name) const override;
};

VARIANT_ENUM_CAST(AnimationNodeBlendSpace1D::BlendMode)
VARIANT_ENUM_CAST(AnimationNodeBlendSpace1D::SyncMode)