initial commit, 4.5 stable

modules/jolt_physics/objects/jolt_soft_body_3d.h

@@ -0,0 +1,179 @@
+/**************************************************************************/
+/*  jolt_soft_body_3d.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 "jolt_object_3d.h"
+
+#include "servers/physics_server_3d.h"
+
+#include "Jolt/Jolt.h"
+
+#include "Jolt/Physics/SoftBody/SoftBodyCreationSettings.h"
+#include "Jolt/Physics/SoftBody/SoftBodySharedSettings.h"
+
+class JoltSpace3D;
+
+class JoltSoftBody3D final : public JoltObject3D {
+	struct Shared {
+		LocalVector<int> mesh_to_physics;
+		JPH::Ref<JPH::SoftBodySharedSettings> settings = new JPH::SoftBodySharedSettings();
+		int ref_count = 1;
+	};
+
+	inline static HashMap<RID, Shared> mesh_to_shared;
+
+	HashSet<int> pinned_vertices;
+	LocalVector<RID> exceptions;
+	LocalVector<Vector3> normals;
+
+	const Shared *shared = nullptr;
+
+	RID mesh;
+
+	JPH::SoftBodyCreationSettings *jolt_settings = new JPH::SoftBodyCreationSettings();
+
+	float mass = 0.0f;
+	float pressure = 0.0f;
+	float linear_damping = 0.01f;
+	float stiffness_coefficient = 0.5f;
+	float shrinking_factor = 0.0f;
+
+	int simulation_precision = 5;
+
+	virtual JPH::BroadPhaseLayer _get_broad_phase_layer() const override;
+	virtual JPH::ObjectLayer _get_object_layer() const override;
+
+	virtual void _space_changing() override;
+	virtual void _space_changed() override;
+
+	virtual void _add_to_space() override;
+
+	bool _ref_shared_data();
+	void _deref_shared_data();
+
+	void _update_mass();
+	void _update_pressure();
+	void _update_damping();
+	void _update_simulation_precision();
+	void _update_group_filter();
+
+	void _try_rebuild();
+
+	void _mesh_changed();
+	void _simulation_precision_changed();
+	void _mass_changed();
+	void _pressure_changed();
+	void _damping_changed();
+	void _pins_changed();
+	void _vertices_changed();
+	void _exceptions_changed();
+	void _motion_changed();
+
+public:
+	JoltSoftBody3D();
+	virtual ~JoltSoftBody3D() override;
+
+	bool in_space() const;
+
+	void add_collision_exception(const RID &p_excepted_body);
+	void remove_collision_exception(const RID &p_excepted_body);
+	bool has_collision_exception(const RID &p_excepted_body) const;
+
+	const LocalVector<RID> &get_collision_exceptions() const { return exceptions; }
+
+	virtual bool can_interact_with(const JoltBody3D &p_other) const override;
+	virtual bool can_interact_with(const JoltSoftBody3D &p_other) const override;
+	virtual bool can_interact_with(const JoltArea3D &p_other) const override;
+
+	virtual bool reports_contacts() const override { return false; }
+
+	virtual Vector3 get_velocity_at_position(const Vector3 &p_position) const override;
+
+	void set_mesh(const RID &p_mesh);
+
+	bool is_pickable() const { return pickable; }
+	void set_pickable(bool p_enabled) { pickable = p_enabled; }
+
+	bool is_sleeping() const;
+	void set_is_sleeping(bool p_enabled);
+
+	bool is_sleep_allowed() const;
+	void set_is_sleep_allowed(bool p_enabled);
+
+	void put_to_sleep() { set_is_sleeping(true); }
+	void wake_up() { set_is_sleeping(false); }
+
+	int get_simulation_precision() const { return simulation_precision; }
+	void set_simulation_precision(int p_precision);
+
+	float get_mass() const { return mass; }
+	void set_mass(float p_mass);
+
+	float get_stiffness_coefficient() const;
+	void set_stiffness_coefficient(float p_coefficient);
+
+	float get_shrinking_factor() const;
+	void set_shrinking_factor(float p_shrinking_factor);
+
+	float get_pressure() const { return pressure; }
+	void set_pressure(float p_pressure);
+
+	float get_linear_damping() const { return linear_damping; }
+	void set_linear_damping(float p_damping);
+
+	float get_drag() const;
+	void set_drag(float p_drag);
+
+	Variant get_state(PhysicsServer3D::BodyState p_state) const;
+	void set_state(PhysicsServer3D::BodyState p_state, const Variant &p_value);
+
+	Transform3D get_transform() const;
+	void set_transform(const Transform3D &p_transform);
+
+	AABB get_bounds() const;
+
+	void update_rendering_server(PhysicsServer3DRenderingServerHandler *p_rendering_server_handler);
+
+	Vector3 get_vertex_position(int p_index);
+	void set_vertex_position(int p_index, const Vector3 &p_position);
+
+	void pin_vertex(int p_index);
+	void unpin_vertex(int p_index);
+
+	void unpin_all_vertices();
+
+	bool is_vertex_pinned(int p_index) const;
+
+	void apply_vertex_impulse(int p_index, const Vector3 &p_impulse);
+	void apply_vertex_force(int p_index, const Vector3 &p_force);
+	void apply_central_impulse(const Vector3 &p_impulse);
+	void apply_central_force(const Vector3 &p_force);
+};