/*************************************************************************/ /* soft_body.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 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 SOFT_PHYSICS_BODY_H #define SOFT_PHYSICS_BODY_H #include "scene/3d/mesh_instance.h" class SoftBody; class SoftBodyVisualServerHandler { friend class SoftBody; RID mesh; int surface; PoolVector<uint8_t> buffer; uint32_t stride; uint32_t offset_vertices; uint32_t offset_normal; PoolVector<uint8_t>::Write write_buffer; private: SoftBodyVisualServerHandler(); bool is_ready() { return mesh.is_valid(); } void prepare(RID p_mesh_rid, int p_surface); void clear(); void open(); void close(); void commit_changes(); public: void set_vertex(int p_vertex_id, const void *p_vector3); void set_normal(int p_vertex_id, const void *p_vector3); void set_aabb(const AABB &p_aabb); }; class SoftBody : public MeshInstance { GDCLASS(SoftBody, MeshInstance); public: struct PinnedPoint { int point_index; NodePath spatial_attachment_path; Spatial *spatial_attachment; // Cache Vector3 offset; PinnedPoint(); PinnedPoint(const PinnedPoint &obj_tocopy); PinnedPoint operator=(const PinnedPoint &obj); }; private: SoftBodyVisualServerHandler visual_server_handler; RID physics_rid; bool mesh_owner; uint32_t collision_mask; uint32_t collision_layer; NodePath parent_collision_ignore; PoolVector<PinnedPoint> pinned_points; bool simulation_started; bool pinned_points_cache_dirty; Ref<ArrayMesh> debug_mesh_cache; class MeshInstance *debug_mesh; bool capture_input_on_drag; bool ray_pickable; void _update_pickable(); protected: 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; bool _set_property_pinned_points_indices(const Array &p_indices); bool _set_property_pinned_points_attachment(int p_item, const String &p_what, const Variant &p_value); bool _get_property_pinned_points(int p_item, const String &p_what, Variant &r_ret) const; virtual void _changed_callback(Object *p_changed, const char *p_prop); void _notification(int p_what); static void _bind_methods(); virtual String get_configuration_warning() const; protected: void _update_physics_server(); void _draw_soft_mesh(); public: void prepare_physics_server(); void become_mesh_owner(); void set_collision_mask(uint32_t p_mask); uint32_t get_collision_mask() const; void set_collision_layer(uint32_t p_layer); uint32_t get_collision_layer() const; void set_collision_mask_bit(int p_bit, bool p_value); bool get_collision_mask_bit(int p_bit) const; void set_collision_layer_bit(int p_bit, bool p_value); bool get_collision_layer_bit(int p_bit) const; void set_parent_collision_ignore(const NodePath &p_parent_collision_ignore); const NodePath &get_parent_collision_ignore() const; void set_pinned_points_indices(PoolVector<PinnedPoint> p_pinned_points_indices); PoolVector<PinnedPoint> get_pinned_points_indices(); void set_simulation_precision(int p_simulation_precision); int get_simulation_precision(); void set_total_mass(real_t p_total_mass); real_t get_total_mass(); void set_linear_stiffness(real_t p_linear_stiffness); real_t get_linear_stiffness(); void set_areaAngular_stiffness(real_t p_areaAngular_stiffness); real_t get_areaAngular_stiffness(); void set_volume_stiffness(real_t p_volume_stiffness); real_t get_volume_stiffness(); void set_pressure_coefficient(real_t p_pressure_coefficient); real_t get_pressure_coefficient(); void set_pose_matching_coefficient(real_t p_pose_matching_coefficient); real_t get_pose_matching_coefficient(); void set_damping_coefficient(real_t p_damping_coefficient); real_t get_damping_coefficient(); void set_drag_coefficient(real_t p_drag_coefficient); real_t get_drag_coefficient(); Array get_collision_exceptions(); void add_collision_exception_with(Node *p_node); void remove_collision_exception_with(Node *p_node); Vector3 get_point_transform(int p_point_index); void pin_point_toggle(int p_point_index); void pin_point(int p_point_index, bool pin, const NodePath &p_spatial_attachment_path = NodePath()); bool is_point_pinned(int p_point_index) const; void set_ray_pickable(bool p_ray_pickable); bool is_ray_pickable() const; SoftBody(); ~SoftBody(); private: void reset_softbody_pin(); void _make_cache_dirty(); void _update_cache_pin_points_datas(); void _pin_point_on_physics_server(int p_point_index, bool pin); void _add_pinned_point(int p_point_index, const NodePath &p_spatial_attachment_path); void _reset_points_offsets(); void _remove_pinned_point(int p_point_index); int _get_pinned_point(int p_point_index, PinnedPoint *&r_point) const; int _has_pinned_point(int p_point_index) const; }; #endif // SOFT_PHYSICS_BODY_H