1 files changed, 94 insertions, 0 deletions
diff --git a/modules/bullet/btRayShape.cpp b/modules/bullet/btRayShape.cpp
new file mode 100644
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+++ b/modules/bullet/btRayShape.cpp
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+/*************************************************************************/
+/*  btRayShape.h                                                        */
+/*  Author: AndreaCatania                                                */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2017 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.                */
+/*************************************************************************/
+
+#include "btRayShape.h"
+#include "LinearMath/btAabbUtil2.h"
+#include "math/math_funcs.h"
+
+btRayShape::btRayShape(btScalar length)
+	: btConvexInternalShape(),
+	  m_shapeAxis(0, 0, 1) {
+	m_shapeType = CUSTOM_CONVEX_SHAPE_TYPE;
+	setLength(length);
+}
+
+btRayShape::~btRayShape() {
+}
+
+void btRayShape::setLength(btScalar p_length) {
+
+	m_length = p_length;
+	reload_cache();
+}
+
+btVector3 btRayShape::localGetSupportingVertex(const btVector3 &vec) const {
+	return localGetSupportingVertexWithoutMargin(vec) + (m_shapeAxis * m_collisionMargin);
+}
+
+btVector3 btRayShape::localGetSupportingVertexWithoutMargin(const btVector3 &vec) const {
+	if (vec.z() > 0)
+		return m_shapeAxis * m_cacheScaledLength;
+	else
+		return btVector3(0, 0, 0);
+}
+
+void btRayShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3 *vectors, btVector3 *supportVerticesOut, int numVectors) const {
+	for (int i = 0; i < numVectors; ++i) {
+		supportVerticesOut[i] = localGetSupportingVertexWithoutMargin(vectors[i]);
+	}
+}
+
+void btRayShape::getAabb(const btTransform &t, btVector3 &aabbMin, btVector3 &aabbMax) const {
+#define MARGIN_BROADPHASE 0.1
+	btVector3 localAabbMin(0, 0, 0);
+	btVector3 localAabbMax(m_shapeAxis * m_length);
+	btTransformAabb(localAabbMin, localAabbMax, MARGIN_BROADPHASE, t, aabbMin, aabbMax);
+}
+
+void btRayShape::calculateLocalInertia(btScalar mass, btVector3 &inertia) const {
+	inertia.setZero();
+}
+
+int btRayShape::getNumPreferredPenetrationDirections() const {
+	return 0;
+}
+
+void btRayShape::getPreferredPenetrationDirection(int index, btVector3 &penetrationVector) const {
+	penetrationVector.setZero();
+}
+
+void btRayShape::reload_cache() {
+
+	m_cacheScaledLength = m_length * m_localScaling[2] + m_collisionMargin;
+
+	m_cacheSupportPoint.setIdentity();
+	m_cacheSupportPoint.setOrigin(m_shapeAxis * m_cacheScaledLength);
+}