diff options
Diffstat (limited to 'scene/resources/skeleton_modification_2d_fabrik.h')
| -rw-r--r-- | scene/resources/skeleton_modification_2d_fabrik.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/scene/resources/skeleton_modification_2d_fabrik.h b/scene/resources/skeleton_modification_2d_fabrik.h new file mode 100644 index 0000000000..79e0106e26 --- /dev/null +++ b/scene/resources/skeleton_modification_2d_fabrik.h @@ -0,0 +1,108 @@ +/*************************************************************************/ +/* skeleton_modification_2d_fabrik.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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. */ +/*************************************************************************/ + +#ifndef SKELETONMODIFICATION2DFABRIK_H +#define SKELETONMODIFICATION2DFABRIK_H + +#include "scene/2d/skeleton_2d.h" +#include "scene/resources/skeleton_modification_2d.h" + +/////////////////////////////////////// +// SkeletonModification2DFABRIK +/////////////////////////////////////// + +class SkeletonModification2DFABRIK : public SkeletonModification2D { + GDCLASS(SkeletonModification2DFABRIK, SkeletonModification2D); + +private: + struct FABRIK_Joint_Data2D { + int bone_idx = -1; + NodePath bone2d_node; + ObjectID bone2d_node_cache; + + Vector2 magnet_position = Vector2(0, 0); + bool use_target_rotation = false; + + bool editor_draw_gizmo = true; + }; + + Vector<FABRIK_Joint_Data2D> fabrik_data_chain; + + // Unlike in 3D, we need a vector of Transform2D objects to perform FABRIK. + // This is because FABRIK (unlike CCDIK) needs to operate on transforms that are NOT + // affected by each other, making the transforms stored in Bone2D unusable, as well as those in Skeleton2D. + // For this reason, this modification stores a vector of Transform2Ds used for the calculations, which are then applied at the end. + Vector<Transform2D> fabrik_transform_chain; + + NodePath target_node; + ObjectID target_node_cache; + void update_target_cache(); + + float chain_tolarance = 0.01; + int chain_max_iterations = 10; + int chain_iterations = 0; + Transform2D target_global_pose = Transform2D(); + Transform2D origin_global_pose = Transform2D(); + + void fabrik_joint_update_bone2d_cache(int p_joint_idx); + void chain_backwards(); + void chain_forwards(); + +protected: + static void _bind_methods(); + bool _set(const StringName &p_path, const Variant &p_value); + bool _get(const StringName &p_path, Variant &r_ret) const; + void _get_property_list(List<PropertyInfo> *p_list) const; + +public: + void _execute(float p_delta) override; + void _setup_modification(SkeletonModificationStack2D *p_stack) override; + + void set_target_node(const NodePath &p_target_node); + NodePath get_target_node() const; + + int get_fabrik_data_chain_length(); + void set_fabrik_data_chain_length(int p_new_length); + + void set_fabrik_joint_bone2d_node(int p_joint_idx, const NodePath &p_target_node); + NodePath get_fabrik_joint_bone2d_node(int p_joint_idx) const; + void set_fabrik_joint_bone_index(int p_joint_idx, int p_bone_idx); + int get_fabrik_joint_bone_index(int p_joint_idx) const; + + void set_fabrik_joint_magnet_position(int p_joint_idx, Vector2 p_magnet_position); + Vector2 get_fabrik_joint_magnet_position(int p_joint_idx) const; + void set_fabrik_joint_use_target_rotation(int p_joint_idx, bool p_use_target_rotation); + bool get_fabrik_joint_use_target_rotation(int p_joint_idx) const; + + SkeletonModification2DFABRIK(); + ~SkeletonModification2DFABRIK(); +}; + +#endif // SKELETONMODIFICATION2DFABRIK_H |