initial commit, 4.5 stable

modules/jolt_physics/shapes/jolt_shape_instance_3d.h

@@ -0,0 +1,99 @@
+/**************************************************************************/
+/*  jolt_shape_instance_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 "core/math/transform_3d.h"
+
+#include "Jolt/Jolt.h"
+
+#include "Jolt/Physics/Collision/Shape/Shape.h"
+
+class JoltShapedObject3D;
+class JoltShape3D;
+
+class JoltShapeInstance3D {
+	// This RAII helper exists solely to avoid needing to maintain move construction/assignment in `JoltShapeInstance3D`.
+	struct ShapeReference {
+		JoltShapedObject3D *parent = nullptr;
+		JoltShape3D *shape = nullptr;
+
+		ShapeReference() = default;
+		ShapeReference(JoltShapedObject3D *p_parent, JoltShape3D *p_shape);
+		ShapeReference(const ShapeReference &p_other) = delete;
+		ShapeReference(ShapeReference &&p_other);
+		~ShapeReference();
+
+		ShapeReference &operator=(const ShapeReference &p_other) = delete;
+		ShapeReference &operator=(ShapeReference &&p_other);
+
+		JoltShape3D *operator*() const { return shape; }
+		JoltShape3D *operator->() const { return shape; }
+		operator JoltShape3D *() const { return shape; }
+	};
+
+	inline static uint32_t next_id = 1;
+
+	Transform3D transform;
+	Vector3 scale;
+	ShapeReference shape;
+	JPH::ShapeRefC jolt_ref;
+	uint32_t id = next_id++;
+	bool disabled = false;
+
+public:
+	JoltShapeInstance3D() = default;
+	JoltShapeInstance3D(JoltShapedObject3D *p_parent, JoltShape3D *p_shape, const Transform3D &p_transform = Transform3D(), const Vector3 &p_scale = Vector3(1.0f, 1.0f, 1.0f), bool p_disabled = false);
+
+	uint32_t get_id() const { return id; }
+
+	JoltShape3D *get_shape() const { return shape; }
+
+	const JPH::Shape *get_jolt_ref() const { return jolt_ref; }
+
+	const Transform3D &get_transform_unscaled() const { return transform; }
+	Transform3D get_transform_scaled() const { return transform.scaled_local(scale); }
+	void set_transform(const Transform3D &p_transform) { transform = p_transform; }
+
+	const Vector3 &get_scale() const { return scale; }
+	void set_scale(const Vector3 &p_scale) { scale = p_scale; }
+
+	AABB get_aabb() const;
+
+	bool is_built() const { return jolt_ref != nullptr; }
+
+	bool is_enabled() const { return !disabled; }
+	bool is_disabled() const { return disabled; }
+
+	void enable() { disabled = false; }
+	void disable() { disabled = true; }
+
+	bool try_build();
+};