initial commit, 4.5 stable

scene/3d/spring_bone_collision_sphere_3d.cpp

@@ -0,0 +1,78 @@
+/**************************************************************************/
+/*  spring_bone_collision_sphere_3d.cpp                                   */
+/**************************************************************************/
+/*                         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.                 */
+/**************************************************************************/
+
+#include "spring_bone_collision_sphere_3d.h"
+
+void SpringBoneCollisionSphere3D::set_radius(float p_radius) {
+	radius = p_radius;
+#ifdef TOOLS_ENABLED
+	update_gizmos();
+#endif // TOOLS_ENABLED
+}
+
+float SpringBoneCollisionSphere3D::get_radius() const {
+	return radius;
+}
+
+void SpringBoneCollisionSphere3D::set_inside(bool p_enabled) {
+	inside = p_enabled;
+#ifdef TOOLS_ENABLED
+	update_gizmos();
+#endif // TOOLS_ENABLED
+}
+
+bool SpringBoneCollisionSphere3D::is_inside() const {
+	return inside;
+}
+
+void SpringBoneCollisionSphere3D::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_radius", "radius"), &SpringBoneCollisionSphere3D::set_radius);
+	ClassDB::bind_method(D_METHOD("get_radius"), &SpringBoneCollisionSphere3D::get_radius);
+	ClassDB::bind_method(D_METHOD("set_inside", "enabled"), &SpringBoneCollisionSphere3D::set_inside);
+	ClassDB::bind_method(D_METHOD("is_inside"), &SpringBoneCollisionSphere3D::is_inside);
+
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "radius", PROPERTY_HINT_RANGE, "0,1,0.001,or_greater,suffix:m"), "set_radius", "get_radius");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "inside"), "set_inside", "is_inside");
+}
+
+Vector3 SpringBoneCollisionSphere3D::_collide_sphere(const Vector3 &p_origin, float p_radius, bool p_inside, float p_bone_radius, float p_bone_length, const Vector3 &p_current) {
+	Vector3 diff = p_current - p_origin;
+	float length = diff.length();
+	float r = p_inside ? p_radius - p_bone_radius : p_bone_radius + p_radius;
+	float distance = p_inside ? r - length : length - r;
+	if (distance > 0) {
+		return p_current;
+	}
+	return p_origin + diff.normalized() * r;
+}
+
+Vector3 SpringBoneCollisionSphere3D::_collide(const Transform3D &p_center, float p_bone_radius, float p_bone_length, const Vector3 &p_current) const {
+	return _collide_sphere(get_transform_from_skeleton(p_center).origin, radius, inside, p_bone_radius, p_bone_length, p_current);
+}