[2072] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Fabian 'x3n' Landau |
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[2662] | 24 | * Reto Grieder (physics) |
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[2072] | 25 | * Co-authors: |
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| 26 | * ... |
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| 27 | * |
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| 28 | */ |
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| 29 | |
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| 30 | #include "WorldEntity.h" |
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| 31 | |
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[3196] | 32 | #include <OgreBillboardSet.h> |
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| 33 | #include <OgreCamera.h> |
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| 34 | #include <OgreEntity.h> |
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| 35 | #include <OgreParticleSystem.h> |
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| 36 | #include <OgreSceneManager.h> |
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[2662] | 37 | #include <OgreSceneNode.h> |
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[3196] | 38 | #include <BulletDynamics/Dynamics/btRigidBody.h> |
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| 39 | #include <boost/static_assert.hpp> |
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[2072] | 40 | |
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[3196] | 41 | #include "util/OrxAssert.h" |
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| 42 | #include "util/Convert.h" |
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[2662] | 43 | #include "util/Exception.h" |
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[2072] | 44 | #include "core/CoreIncludes.h" |
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| 45 | #include "core/XMLPort.h" |
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[5735] | 46 | #include "Scene.h" |
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| 47 | #include "collisionshapes/WorldEntityCollisionShape.h" |
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[10073] | 48 | #include <BulletCollision/CollisionShapes/btCollisionShape.h> |
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[2072] | 49 | |
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| 50 | namespace orxonox |
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| 51 | { |
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| 52 | const Vector3 WorldEntity::FRONT = Vector3::NEGATIVE_UNIT_Z; |
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| 53 | const Vector3 WorldEntity::BACK = Vector3::UNIT_Z; |
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| 54 | const Vector3 WorldEntity::LEFT = Vector3::NEGATIVE_UNIT_X; |
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| 55 | const Vector3 WorldEntity::RIGHT = Vector3::UNIT_X; |
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| 56 | const Vector3 WorldEntity::DOWN = Vector3::NEGATIVE_UNIT_Y; |
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| 57 | const Vector3 WorldEntity::UP = Vector3::UNIT_Y; |
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| 58 | |
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[3196] | 59 | // Be sure we don't do bad conversions |
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| 60 | BOOST_STATIC_ASSERT((int)Ogre::Node::TS_LOCAL == (int)WorldEntity::Local); |
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| 61 | BOOST_STATIC_ASSERT((int)Ogre::Node::TS_PARENT == (int)WorldEntity::Parent); |
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| 62 | BOOST_STATIC_ASSERT((int)Ogre::Node::TS_WORLD == (int)WorldEntity::World); |
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| 63 | |
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[9667] | 64 | RegisterAbstractClass(WorldEntity).inheritsFrom(Class(BaseObject)).inheritsFrom(Class(Synchronisable)); |
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| 65 | |
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[2662] | 66 | /** |
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| 67 | @brief |
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| 68 | Creates a new WorldEntity that may immediately be used. |
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| 69 | All the default values are being set here. |
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| 70 | */ |
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[9667] | 71 | WorldEntity::WorldEntity(Context* context) : BaseObject(context), Synchronisable(context) |
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[2072] | 72 | { |
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| 73 | RegisterObject(WorldEntity); |
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| 74 | |
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[2171] | 75 | if (!this->getScene() || !this->getScene()->getRootSceneNode()) |
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| 76 | ThrowException(AbortLoading, "Can't create WorldEntity, no scene or no root-scenenode given."); |
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[2072] | 77 | |
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| 78 | this->node_ = this->getScene()->getRootSceneNode()->createChildSceneNode(); |
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| 79 | |
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| 80 | this->parent_ = 0; |
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[2171] | 81 | this->parentID_ = OBJECTID_UNKNOWN; |
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[3077] | 82 | this->bDeleteWithParent_ = true; |
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[2072] | 83 | |
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| 84 | this->node_->setPosition(Vector3::ZERO); |
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| 85 | this->node_->setOrientation(Quaternion::IDENTITY); |
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[7163] | 86 | |
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[6524] | 87 | // Activity and visibility memory. |
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| 88 | this->bActiveMem_ = true; |
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| 89 | this->bVisibleMem_ = true; |
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[2072] | 90 | |
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[2662] | 91 | |
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| 92 | // Default behaviour does not include physics |
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| 93 | this->physicalBody_ = 0; |
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| 94 | this->bPhysicsActive_ = false; |
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| 95 | this->bPhysicsActiveSynchronised_ = false; |
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| 96 | this->bPhysicsActiveBeforeAttaching_ = false; |
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[9667] | 97 | this->collisionShape_ = new WorldEntityCollisionShape(this->getContext()); |
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| 98 | this->collisionShape_->setWorldEntityOwner(this); |
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[2662] | 99 | this->collisionType_ = None; |
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| 100 | this->collisionTypeSynchronised_ = None; |
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[8858] | 101 | this->mass_ = 1.0f; |
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[2662] | 102 | this->childrenMass_ = 0; |
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| 103 | // Using bullet default values |
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| 104 | this->restitution_ = 0; |
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| 105 | this->angularFactor_ = 1; |
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| 106 | this->linearDamping_ = 0; |
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| 107 | this->angularDamping_ = 0; |
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| 108 | this->friction_ = 0.5; |
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| 109 | this->bCollisionCallbackActive_ = false; |
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| 110 | this->bCollisionResponseActive_ = true; |
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| 111 | |
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[2072] | 112 | this->registerVariables(); |
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| 113 | } |
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| 114 | |
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[2662] | 115 | /** |
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| 116 | @brief |
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| 117 | Destroys the WorldEntity AND ALL its children with it. |
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| 118 | */ |
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[2072] | 119 | WorldEntity::~WorldEntity() |
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| 120 | { |
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| 121 | if (this->isInitialized()) |
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| 122 | { |
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[2662] | 123 | if (this->parent_) |
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| 124 | this->detachFromParent(); |
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| 125 | |
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[7910] | 126 | std::set<WorldEntity*>::iterator it; |
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| 127 | while ((it = this->children_.begin()) != this->children_.end()) |
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[3077] | 128 | { |
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[7937] | 129 | WorldEntity* entity = *it; |
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| 130 | |
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[7910] | 131 | // do this for all children, because even if getDeleteWithParent() returns true a child might still stay active due to smart pointers pointing to it |
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[7937] | 132 | entity->setPosition(entity->getWorldPosition()); |
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| 133 | this->detach(entity); // detach also erases the element from the children set |
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[7910] | 134 | |
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[7937] | 135 | if (entity->getDeleteWithParent()) |
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| 136 | entity->destroy(); |
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[3077] | 137 | } |
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[2662] | 138 | |
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| 139 | if (this->physicalBody_) |
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| 140 | { |
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| 141 | this->deactivatePhysics(); |
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| 142 | delete this->physicalBody_; |
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| 143 | } |
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[5929] | 144 | this->collisionShape_->destroy(); |
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[2662] | 145 | |
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[2072] | 146 | this->node_->detachAllObjects(); |
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[2662] | 147 | this->node_->removeAllChildren(); |
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| 148 | |
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| 149 | OrxAssert(this->getScene()->getSceneManager(), "No SceneManager defined in a WorldEntity."); |
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| 150 | this->getScene()->getSceneManager()->destroySceneNode(this->node_->getName()); |
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[2072] | 151 | } |
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| 152 | } |
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| 153 | |
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| 154 | void WorldEntity::XMLPort(Element& xmlelement, XMLPort::Mode mode) |
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| 155 | { |
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| 156 | SUPER(WorldEntity, XMLPort, xmlelement, mode); |
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| 157 | |
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[2662] | 158 | XMLPortParamTemplate(WorldEntity, "position", setPosition, getPosition, xmlelement, mode, const Vector3&); |
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[2072] | 159 | XMLPortParamTemplate(WorldEntity, "orientation", setOrientation, getOrientation, xmlelement, mode, const Quaternion&); |
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[2662] | 160 | XMLPortParamTemplate(WorldEntity, "scale3D", setScale3D, getScale3D, xmlelement, mode, const Vector3&); |
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| 161 | XMLPortParam (WorldEntity, "scale", setScale, getScale, xmlelement, mode); |
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| 162 | XMLPortParamLoadOnly(WorldEntity, "lookat", lookAt_xmlport, xmlelement, mode); |
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| 163 | XMLPortParamLoadOnly(WorldEntity, "direction", setDirection_xmlport, xmlelement, mode); |
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| 164 | XMLPortParamLoadOnly(WorldEntity, "yaw", yaw_xmlport, xmlelement, mode); |
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| 165 | XMLPortParamLoadOnly(WorldEntity, "pitch", pitch_xmlport, xmlelement, mode); |
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| 166 | XMLPortParamLoadOnly(WorldEntity, "roll", roll_xmlport, xmlelement, mode); |
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[3077] | 167 | XMLPortParam (WorldEntity, "deletewithparent", setDeleteWithParent, getDeleteWithParent, xmlelement, mode); |
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[2072] | 168 | |
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[2662] | 169 | // Physics |
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| 170 | XMLPortParam(WorldEntity, "collisionType", setCollisionTypeStr, getCollisionTypeStr, xmlelement, mode); |
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| 171 | XMLPortParam(WorldEntity, "collisionResponse", setCollisionResponse, hasCollisionResponse, xmlelement, mode); |
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| 172 | XMLPortParam(WorldEntity, "mass", setMass, getMass, xmlelement, mode); |
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| 173 | XMLPortParam(WorldEntity, "restitution", setRestitution, getRestitution, xmlelement, mode); |
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| 174 | XMLPortParam(WorldEntity, "angularFactor", setAngularFactor, getAngularFactor, xmlelement, mode); |
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| 175 | XMLPortParam(WorldEntity, "linearDamping", setLinearDamping, getLinearDamping, xmlelement, mode); |
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| 176 | XMLPortParam(WorldEntity, "angularDamping", setAngularDamping, getAngularDamping, xmlelement, mode); |
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| 177 | XMLPortParam(WorldEntity, "friction", setFriction, getFriction, xmlelement, mode); |
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| 178 | |
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| 179 | // Other attached WorldEntities |
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[2072] | 180 | XMLPortObject(WorldEntity, WorldEntity, "attached", attach, getAttachedObject, xmlelement, mode); |
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[2662] | 181 | // Attached collision shapes |
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| 182 | XMLPortObject(WorldEntity, CollisionShape, "collisionShapes", attachCollisionShape, getAttachedCollisionShape, xmlelement, mode); |
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[2072] | 183 | } |
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| 184 | |
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| 185 | void WorldEntity::registerVariables() |
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| 186 | { |
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[5929] | 187 | registerVariable(this->mainStateName_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::changedMainStateName)); |
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[2072] | 188 | |
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[3280] | 189 | registerVariable(this->bActive_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::changedActivity)); |
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| 190 | registerVariable(this->bVisible_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::changedVisibility)); |
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[2072] | 191 | |
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[3280] | 192 | registerVariable(this->getScale3D(), VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::scaleChanged)); |
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[2662] | 193 | |
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| 194 | // Physics stuff |
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[3280] | 195 | registerVariable(this->mass_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::massChanged)); |
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| 196 | registerVariable(this->restitution_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::restitutionChanged)); |
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| 197 | registerVariable(this->angularFactor_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::angularFactorChanged)); |
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| 198 | registerVariable(this->linearDamping_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::linearDampingChanged)); |
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| 199 | registerVariable(this->angularDamping_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::angularDampingChanged)); |
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| 200 | registerVariable(this->friction_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::frictionChanged)); |
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[2662] | 201 | registerVariable(this->bCollisionCallbackActive_, |
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[3280] | 202 | VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::collisionCallbackActivityChanged)); |
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[2662] | 203 | registerVariable(this->bCollisionResponseActive_, |
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[3280] | 204 | VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::collisionResponseActivityChanged)); |
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[2662] | 205 | registerVariable((int&)this->collisionTypeSynchronised_, |
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[3280] | 206 | VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::collisionTypeChanged)); |
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[2662] | 207 | registerVariable(this->bPhysicsActiveSynchronised_, |
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[3280] | 208 | VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::physicsActivityChanged)); |
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[2662] | 209 | |
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| 210 | // Attach to parent if necessary |
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[3280] | 211 | registerVariable(this->parentID_, VariableDirection::ToClient, new NetworkCallback<WorldEntity>(this, &WorldEntity::networkcallback_parentChanged)); |
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[2072] | 212 | } |
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[7163] | 213 | |
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[6524] | 214 | /** |
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| 215 | @brief |
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| 216 | When the activity is changed, it is changed for all attached objects as well. |
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| 217 | */ |
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| 218 | void WorldEntity::changedActivity(void) |
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| 219 | { |
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| 220 | SUPER(WorldEntity, changedActivity); |
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[7163] | 221 | |
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[7493] | 222 | if(GameMode::isMaster()) |
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[6524] | 223 | { |
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[7493] | 224 | for (std::set<WorldEntity*>::const_iterator it = this->getAttachedObjects().begin(); it != this->getAttachedObjects().end(); it++) |
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[6524] | 225 | { |
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[7493] | 226 | if(!this->isActive()) |
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| 227 | { |
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| 228 | (*it)->bActiveMem_ = (*it)->isActive(); |
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| 229 | (*it)->setActive(this->isActive()); |
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| 230 | } |
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| 231 | else |
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| 232 | { |
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| 233 | (*it)->setActive((*it)->bActiveMem_); |
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| 234 | } |
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[6524] | 235 | } |
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| 236 | } |
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| 237 | } |
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[7163] | 238 | |
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[6524] | 239 | /** |
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| 240 | @brief |
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| 241 | When the visibility is changed, it is changed for all attached objects as well. |
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| 242 | */ |
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| 243 | void WorldEntity::changedVisibility(void) |
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| 244 | { |
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| 245 | SUPER(WorldEntity, changedVisibility); |
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[7163] | 246 | |
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[7493] | 247 | if(GameMode::isMaster()) |
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[6524] | 248 | { |
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[7493] | 249 | for (std::set<WorldEntity*>::const_iterator it = this->getAttachedObjects().begin(); it != this->getAttachedObjects().end(); it++) |
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[6524] | 250 | { |
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[7493] | 251 | if(!this->isVisible()) |
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| 252 | { |
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| 253 | (*it)->bVisibleMem_ = (*it)->isVisible(); |
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| 254 | (*it)->setVisible(this->isVisible()); |
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| 255 | } |
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| 256 | else |
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| 257 | { |
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| 258 | (*it)->setVisible((*it)->bVisibleMem_); |
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| 259 | } |
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[6524] | 260 | } |
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| 261 | } |
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| 262 | } |
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[2072] | 263 | |
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[2662] | 264 | /** |
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| 265 | @brief |
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| 266 | Network function that object this instance to its correct parent. |
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| 267 | */ |
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[2851] | 268 | void WorldEntity::networkcallback_parentChanged() |
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[2072] | 269 | { |
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[2171] | 270 | if (this->parentID_ != OBJECTID_UNKNOWN) |
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| 271 | { |
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[3325] | 272 | WorldEntity* parent = orxonox_cast<WorldEntity*>(Synchronisable::getSynchronisable(this->parentID_)); |
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[2171] | 273 | if (parent) |
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| 274 | this->attachToParent(parent); |
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| 275 | } |
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[2072] | 276 | } |
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| 277 | |
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[2662] | 278 | /** |
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| 279 | @brief |
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| 280 | Attaches this object to a parent SceneNode. |
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[7401] | 281 | @remarks |
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[2662] | 282 | Only use this method if you know exactly what you're doing! |
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| 283 | Normally, attaching works internally by attaching WE's. |
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| 284 | */ |
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| 285 | void WorldEntity::attachToNode(Ogre::SceneNode* node) |
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[2072] | 286 | { |
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[2662] | 287 | Ogre::Node* parent = this->node_->getParent(); |
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| 288 | if (parent) |
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| 289 | parent->removeChild(this->node_); |
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| 290 | node->addChild(this->node_); |
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| 291 | } |
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| 292 | |
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| 293 | /** |
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| 294 | @brief |
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| 295 | Detaches this object from a parent SceneNode. |
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[7401] | 296 | @remarks |
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[2662] | 297 | Only use this method if you know exactly what you're doing! |
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| 298 | Normally, attaching works internally by attaching WE's. |
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| 299 | */ |
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| 300 | void WorldEntity::detachFromNode(Ogre::SceneNode* node) |
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| 301 | { |
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| 302 | node->removeChild(this->node_); |
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| 303 | // this->getScene()->getRootSceneNode()->addChild(this->node_); |
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| 304 | } |
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| 305 | |
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| 306 | /** |
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| 307 | @brief |
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| 308 | Network callback for the collision type. Only change the type if it was valid. |
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| 309 | */ |
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| 310 | void WorldEntity::collisionTypeChanged() |
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| 311 | { |
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| 312 | if (this->collisionTypeSynchronised_ != Dynamic && |
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| 313 | this->collisionTypeSynchronised_ != Kinematic && |
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| 314 | this->collisionTypeSynchronised_ != Static && |
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| 315 | this->collisionTypeSynchronised_ != None) |
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| 316 | { |
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[8858] | 317 | orxout(internal_error) << "Error when collsion Type was received over network. Unknown enum value:" << this->collisionTypeSynchronised_ << endl; |
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[2662] | 318 | } |
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| 319 | else if (this->collisionTypeSynchronised_ != collisionType_) |
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| 320 | { |
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| 321 | if (this->parent_) |
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[8858] | 322 | orxout(internal_warning) << "Network connection tried to set the collision type of an attached WE. Ignoring." << endl; |
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[2662] | 323 | else |
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| 324 | this->setCollisionType(this->collisionTypeSynchronised_); |
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| 325 | } |
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| 326 | } |
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| 327 | |
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| 328 | //! Network callback for this->bPhysicsActive_ |
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| 329 | void WorldEntity::physicsActivityChanged() |
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| 330 | { |
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| 331 | if (this->bPhysicsActiveSynchronised_) |
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| 332 | this->activatePhysics(); |
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[2072] | 333 | else |
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[2662] | 334 | this->deactivatePhysics(); |
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| 335 | } |
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| 336 | |
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| 337 | //! Function sets whether Bullet should issue a callback on collisions |
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| 338 | void WorldEntity::collisionCallbackActivityChanged() |
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| 339 | { |
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| 340 | if (this->hasPhysics()) |
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[2072] | 341 | { |
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[2662] | 342 | if (this->bCollisionCallbackActive_) |
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| 343 | this->physicalBody_->setCollisionFlags(this->physicalBody_->getCollisionFlags() | |
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| 344 | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK); |
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| 345 | else |
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| 346 | this->physicalBody_->setCollisionFlags(this->physicalBody_->getCollisionFlags() & |
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| 347 | ~btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK); |
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[2072] | 348 | } |
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[2662] | 349 | } |
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[2072] | 350 | |
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[2662] | 351 | //! Function sets whether Bullet should react itself to a collision |
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| 352 | void WorldEntity::collisionResponseActivityChanged() |
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| 353 | { |
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| 354 | if (this->hasPhysics()) |
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| 355 | { |
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| 356 | if (this->bCollisionResponseActive_) |
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| 357 | this->physicalBody_->setCollisionFlags(this->physicalBody_->getCollisionFlags() & |
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| 358 | ~btCollisionObject::CF_NO_CONTACT_RESPONSE); |
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| 359 | else |
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| 360 | this->physicalBody_->setCollisionFlags(this->physicalBody_->getCollisionFlags() | |
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| 361 | btCollisionObject::CF_NO_CONTACT_RESPONSE); |
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| 362 | } |
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| 363 | } |
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| 364 | |
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| 365 | /** |
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| 366 | @brief |
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| 367 | Attaches a child WorldEntity to this object. This calls notifyBeingAttached() |
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| 368 | of the child WE. |
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[7401] | 369 | @note |
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[2662] | 370 | The collision shape of the child object gets attached nevertheless. That also means |
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| 371 | that you can change the collision shape of the child and it correctly cascadeds the changes to this instance. |
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| 372 | Be aware of this implication: When implementing attaching of kinematic objects to others, you have to change |
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| 373 | this behaviour because you then might not want to merge the collision shapes. |
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| 374 | */ |
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| 375 | void WorldEntity::attach(WorldEntity* object) |
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| 376 | { |
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| 377 | if (object == this) |
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| 378 | { |
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[8858] | 379 | orxout(internal_warning) << "Can't attach a WorldEntity to itself." << endl; |
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[2662] | 380 | return; |
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| 381 | } |
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| 382 | |
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| 383 | if (!object->notifyBeingAttached(this)) |
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| 384 | return; |
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| 385 | |
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| 386 | this->attachNode(object->node_); |
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[2072] | 387 | this->children_.insert(object); |
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[2662] | 388 | |
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| 389 | this->attachCollisionShape(object->collisionShape_); |
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| 390 | // mass |
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| 391 | this->childrenMass_ += object->getMass(); |
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| 392 | recalculateMassProps(); |
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[2072] | 393 | } |
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| 394 | |
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[2662] | 395 | /** |
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| 396 | @brief |
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| 397 | Function gets called when this object is being attached to a new parent. |
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| 398 | |
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| 399 | This operation is only allowed if the collision types "like" each other. |
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| 400 | - You cannot a attach a non physical object to a physical one. |
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| 401 | - Dynamic object can NOT be attached at all. |
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| 402 | - It is also not possible to attach a kinematic to a dynamic one. |
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| 403 | - Attaching of kinematic objects otherwise is not yet supported. |
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| 404 | */ |
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| 405 | bool WorldEntity::notifyBeingAttached(WorldEntity* newParent) |
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| 406 | { |
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| 407 | // check first whether attaching is even allowed |
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| 408 | if (this->hasPhysics()) |
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| 409 | { |
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| 410 | if (!newParent->hasPhysics()) |
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| 411 | { |
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[8858] | 412 | orxout(internal_warning) << " Cannot attach a physical object to a non physical one." << endl; |
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[2662] | 413 | return false; |
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| 414 | } |
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| 415 | else if (this->isDynamic()) |
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| 416 | { |
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[10198] | 417 | orxout(internal_warning) << "Cannot attach a dynamic object to a WorldEntity." << endl; |
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| 418 | return false; |
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[2662] | 419 | } |
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| 420 | else if (this->isKinematic() && newParent->isDynamic()) |
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| 421 | { |
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[8858] | 422 | orxout(internal_warning) << "Cannot attach a kinematic object to a dynamic one." << endl; |
---|
[2662] | 423 | return false; |
---|
| 424 | } |
---|
| 425 | else if (this->isKinematic()) |
---|
| 426 | { |
---|
[8858] | 427 | orxout(internal_warning) << "Cannot attach a kinematic object to a static or kinematic one: Not yet implemented." << endl; |
---|
[2662] | 428 | return false; |
---|
| 429 | } |
---|
| 430 | } |
---|
| 431 | |
---|
| 432 | if (this->isPhysicsActive()) |
---|
| 433 | this->bPhysicsActiveBeforeAttaching_ = true; |
---|
| 434 | this->deactivatePhysics(); |
---|
| 435 | |
---|
| 436 | if (this->parent_) |
---|
| 437 | this->detachFromParent(); |
---|
| 438 | |
---|
| 439 | this->parent_ = newParent; |
---|
| 440 | this->parentID_ = newParent->getObjectID(); |
---|
| 441 | |
---|
[2851] | 442 | this->parentChanged(); |
---|
| 443 | |
---|
[2662] | 444 | // apply transform to collision shape |
---|
| 445 | this->collisionShape_->setPosition(this->getPosition()); |
---|
| 446 | this->collisionShape_->setOrientation(this->getOrientation()); |
---|
| 447 | // TODO: Scale |
---|
[2851] | 448 | |
---|
[2662] | 449 | return true; |
---|
| 450 | } |
---|
| 451 | |
---|
| 452 | /** |
---|
| 453 | @brief |
---|
| 454 | Detaches a child WorldEntity from this instance. |
---|
| 455 | */ |
---|
[2072] | 456 | void WorldEntity::detach(WorldEntity* object) |
---|
| 457 | { |
---|
[7910] | 458 | std::set<WorldEntity*>::iterator it = this->children_.find(object); |
---|
| 459 | if (it == this->children_.end()) |
---|
[2662] | 460 | { |
---|
[8858] | 461 | orxout(internal_warning) << "Cannot detach an object that is not a child." << endl; |
---|
[2662] | 462 | return; |
---|
| 463 | } |
---|
| 464 | |
---|
| 465 | // collision shapes |
---|
| 466 | this->detachCollisionShape(object->collisionShape_); |
---|
| 467 | |
---|
| 468 | // mass |
---|
| 469 | if (object->getMass() > 0.0f) |
---|
| 470 | { |
---|
| 471 | this->childrenMass_ -= object->getMass(); |
---|
| 472 | recalculateMassProps(); |
---|
| 473 | } |
---|
| 474 | |
---|
| 475 | this->detachNode(object->node_); |
---|
[7910] | 476 | this->children_.erase(it); |
---|
[2072] | 477 | |
---|
[2662] | 478 | object->notifyDetached(); |
---|
[2072] | 479 | } |
---|
| 480 | |
---|
[2662] | 481 | /** |
---|
| 482 | @brief |
---|
| 483 | Function gets called when the object has been detached from its parent. |
---|
| 484 | */ |
---|
| 485 | void WorldEntity::notifyDetached() |
---|
[2072] | 486 | { |
---|
[2662] | 487 | this->parent_ = 0; |
---|
| 488 | this->parentID_ = OBJECTID_UNKNOWN; |
---|
| 489 | |
---|
[2851] | 490 | this->parentChanged(); |
---|
| 491 | |
---|
[2662] | 492 | // reset orientation of the collisionShape (cannot be set within a WE usually) |
---|
| 493 | this->collisionShape_->setPosition(Vector3::ZERO); |
---|
| 494 | this->collisionShape_->setOrientation(Quaternion::IDENTITY); |
---|
| 495 | // TODO: Scale |
---|
| 496 | |
---|
| 497 | if (this->bPhysicsActiveBeforeAttaching_) |
---|
| 498 | { |
---|
| 499 | this->activatePhysics(); |
---|
| 500 | this->bPhysicsActiveBeforeAttaching_ = false; |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | |
---|
| 504 | //! Returns an attached object (merely for XMLPort). |
---|
| 505 | WorldEntity* WorldEntity::getAttachedObject(unsigned int index) |
---|
| 506 | { |
---|
[2072] | 507 | unsigned int i = 0; |
---|
| 508 | for (std::set<WorldEntity*>::const_iterator it = this->children_.begin(); it != this->children_.end(); ++it) |
---|
| 509 | { |
---|
| 510 | if (i == index) |
---|
| 511 | return (*it); |
---|
| 512 | ++i; |
---|
| 513 | } |
---|
| 514 | return 0; |
---|
| 515 | } |
---|
[2662] | 516 | |
---|
| 517 | //! Attaches an Ogre::SceneNode to this WorldEntity. |
---|
| 518 | void WorldEntity::attachNode(Ogre::SceneNode* node) |
---|
| 519 | { |
---|
| 520 | Ogre::Node* parent = node->getParent(); |
---|
| 521 | if (parent) |
---|
| 522 | parent->removeChild(node); |
---|
| 523 | this->node_->addChild(node); |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | //! Detaches an Ogre::SceneNode from this WorldEntity. |
---|
| 527 | void WorldEntity::detachNode(Ogre::SceneNode* node) |
---|
| 528 | { |
---|
| 529 | this->node_->removeChild(node); |
---|
| 530 | // this->getScene()->getRootSceneNode()->addChild(node); |
---|
| 531 | } |
---|
| 532 | |
---|
| 533 | //! Attaches an Ogre::MovableObject to this WorldEntity. |
---|
| 534 | void WorldEntity::attachOgreObject(Ogre::MovableObject* object) |
---|
[6417] | 535 | { |
---|
| 536 | this->node_->attachObject(object); |
---|
[6501] | 537 | object->setUserAny(Ogre::Any(static_cast<OrxonoxClass*>(this))); |
---|
[6417] | 538 | } |
---|
| 539 | |
---|
[3196] | 540 | void WorldEntity::attachOgreObject(Ogre::BillboardSet* object) |
---|
[6417] | 541 | { this->attachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 542 | void WorldEntity::attachOgreObject(Ogre::Camera* object) |
---|
[6417] | 543 | { this->attachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 544 | void WorldEntity::attachOgreObject(Ogre::Entity* object) |
---|
[6417] | 545 | { this->attachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 546 | void WorldEntity::attachOgreObject(Ogre::ParticleSystem* object) |
---|
[6417] | 547 | { this->attachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[2662] | 548 | |
---|
| 549 | //! Detaches an Ogre::MovableObject from this WorldEntity. |
---|
| 550 | void WorldEntity::detachOgreObject(Ogre::MovableObject* object) |
---|
[6417] | 551 | { |
---|
[6501] | 552 | object->setUserAny(Ogre::Any(static_cast<OrxonoxClass*>(NULL))); |
---|
[6417] | 553 | this->node_->detachObject(object); |
---|
| 554 | } |
---|
| 555 | |
---|
[3196] | 556 | void WorldEntity::detachOgreObject(Ogre::BillboardSet* object) |
---|
[6417] | 557 | { this->detachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 558 | void WorldEntity::detachOgreObject(Ogre::Camera* object) |
---|
[6417] | 559 | { this->detachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 560 | void WorldEntity::detachOgreObject(Ogre::Entity* object) |
---|
[6417] | 561 | { this->detachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[3196] | 562 | void WorldEntity::detachOgreObject(Ogre::ParticleSystem* object) |
---|
[6417] | 563 | { this->detachOgreObject(static_cast<Ogre::MovableObject*>(object)); } |
---|
[2662] | 564 | |
---|
| 565 | //! Detaches an Ogre::MovableObject (by string) from this WorldEntity. |
---|
| 566 | Ogre::MovableObject* WorldEntity::detachOgreObject(const Ogre::String& name) |
---|
| 567 | { |
---|
| 568 | return this->node_->detachObject(name); |
---|
| 569 | } |
---|
| 570 | |
---|
| 571 | //! Attaches a collision Shape to this object (delegated to the internal CompoundCollisionShape) |
---|
| 572 | void WorldEntity::attachCollisionShape(CollisionShape* shape) |
---|
| 573 | { |
---|
| 574 | this->collisionShape_->attach(shape); |
---|
| 575 | // Note: this->collisionShape_ already notifies us of any changes. |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | //! Detaches a collision Shape from this object (delegated to the internal CompoundCollisionShape) |
---|
| 579 | void WorldEntity::detachCollisionShape(CollisionShape* shape) |
---|
| 580 | { |
---|
| 581 | // Note: The collision shapes may not be detached with this function! |
---|
| 582 | this->collisionShape_->detach(shape); |
---|
| 583 | // Note: this->collisionShape_ already notifies us of any changes. |
---|
| 584 | } |
---|
| 585 | |
---|
| 586 | //! Returns an attached collision Shape of this object (delegated to the internal CompoundCollisionShape) |
---|
| 587 | CollisionShape* WorldEntity::getAttachedCollisionShape(unsigned int index) |
---|
| 588 | { |
---|
| 589 | return this->collisionShape_->getAttachedShape(index); |
---|
| 590 | } |
---|
| 591 | |
---|
| 592 | // Note: These functions are placed in WorldEntity.h as inline functions for the release build. |
---|
[3196] | 593 | #ifndef ORXONOX_RELEASE |
---|
[2662] | 594 | const Vector3& WorldEntity::getPosition() const |
---|
| 595 | { |
---|
| 596 | return this->node_->getPosition(); |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | const Quaternion& WorldEntity::getOrientation() const |
---|
| 600 | { |
---|
| 601 | return this->node_->getOrientation(); |
---|
| 602 | } |
---|
| 603 | |
---|
| 604 | const Vector3& WorldEntity::getScale3D() const |
---|
| 605 | { |
---|
| 606 | return this->node_->getScale(); |
---|
| 607 | } |
---|
| 608 | #endif |
---|
| 609 | |
---|
| 610 | //! Returns the position relative to the root space |
---|
| 611 | const Vector3& WorldEntity::getWorldPosition() const |
---|
| 612 | { |
---|
| 613 | return this->node_->_getDerivedPosition(); |
---|
| 614 | } |
---|
| 615 | |
---|
| 616 | //! Returns the orientation relative to the root space |
---|
| 617 | const Quaternion& WorldEntity::getWorldOrientation() const |
---|
| 618 | { |
---|
| 619 | return this->node_->_getDerivedOrientation(); |
---|
| 620 | } |
---|
| 621 | |
---|
| 622 | //! Returns the scaling applied relative to the root space in 3 coordinates |
---|
| 623 | const Vector3& WorldEntity::getWorldScale3D() const |
---|
| 624 | { |
---|
| 625 | return this->node_->_getDerivedScale(); |
---|
| 626 | } |
---|
| 627 | |
---|
| 628 | /** |
---|
| 629 | @brief |
---|
| 630 | Returns the scaling applied relative to the root space in 3 coordinates |
---|
| 631 | @return |
---|
| 632 | Returns the scaling if it is uniform, 1.0f otherwise. |
---|
| 633 | */ |
---|
| 634 | float WorldEntity::getWorldScale() const |
---|
| 635 | { |
---|
| 636 | Vector3 scale = this->getWorldScale3D(); |
---|
| 637 | return (scale.x == scale.y && scale.x == scale.z) ? scale.x : 1; |
---|
| 638 | } |
---|
| 639 | |
---|
| 640 | /** |
---|
| 641 | @brief |
---|
| 642 | Sets the three dimensional scaling of this object. |
---|
[7401] | 643 | @note |
---|
[2662] | 644 | Scaling physical objects has not yet been implemented and is therefore forbidden. |
---|
| 645 | */ |
---|
| 646 | void WorldEntity::setScale3D(const Vector3& scale) |
---|
| 647 | { |
---|
[8706] | 648 | // If physics is enabled scale the attached CollisionShape. |
---|
| 649 | /*if (this->hasPhysics() && this->collisionShape_ != NULL) |
---|
[2662] | 650 | { |
---|
[8706] | 651 | this->collisionShape_->setScale3D(scale); |
---|
| 652 | }*/ |
---|
| 653 | |
---|
[2662] | 654 | this->node_->setScale(scale); |
---|
| 655 | |
---|
| 656 | this->changedScale(); |
---|
| 657 | } |
---|
| 658 | |
---|
| 659 | /** |
---|
| 660 | @brief |
---|
| 661 | Translates this WorldEntity by a vector. |
---|
[7401] | 662 | @param distance |
---|
| 663 | The relative distance of the translation |
---|
[2662] | 664 | @param relativeTo |
---|
[7401] | 665 | The TransformSpace of this translation |
---|
[2662] | 666 | */ |
---|
[3196] | 667 | void WorldEntity::translate(const Vector3& distance, TransformSpace relativeTo) |
---|
[2662] | 668 | { |
---|
| 669 | switch (relativeTo) |
---|
| 670 | { |
---|
[3196] | 671 | case WorldEntity::Local: |
---|
[2662] | 672 | // position is relative to parent so transform downwards |
---|
| 673 | this->setPosition(this->getPosition() + this->getOrientation() * distance); |
---|
| 674 | break; |
---|
[3196] | 675 | case WorldEntity::Parent: |
---|
[2662] | 676 | this->setPosition(this->getPosition() + distance); |
---|
| 677 | break; |
---|
[3196] | 678 | case WorldEntity::World: |
---|
[2662] | 679 | // position is relative to parent so transform upwards |
---|
| 680 | if (this->node_->getParent()) |
---|
| 681 | setPosition(getPosition() + (node_->getParent()->_getDerivedOrientation().Inverse() * distance) |
---|
| 682 | / node_->getParent()->_getDerivedScale()); |
---|
| 683 | else |
---|
| 684 | this->setPosition(this->getPosition() + distance); |
---|
| 685 | break; |
---|
| 686 | } |
---|
| 687 | } |
---|
| 688 | |
---|
| 689 | /** |
---|
| 690 | @brief |
---|
| 691 | Rotates this WorldEntity by a quaternion. |
---|
[7401] | 692 | @param rotation |
---|
| 693 | The desired relative rotation |
---|
[2662] | 694 | @param relativeTo |
---|
[7401] | 695 | The TransformSpace of this translation |
---|
[2662] | 696 | */ |
---|
[3196] | 697 | void WorldEntity::rotate(const Quaternion& rotation, TransformSpace relativeTo) |
---|
[2662] | 698 | { |
---|
| 699 | switch(relativeTo) |
---|
| 700 | { |
---|
[3196] | 701 | case WorldEntity::Local: |
---|
[2662] | 702 | this->setOrientation(this->getOrientation() * rotation); |
---|
| 703 | break; |
---|
[3196] | 704 | case WorldEntity::Parent: |
---|
[2662] | 705 | // Rotations are normally relative to local axes, transform up |
---|
| 706 | this->setOrientation(rotation * this->getOrientation()); |
---|
| 707 | break; |
---|
[3196] | 708 | case WorldEntity::World: |
---|
[2662] | 709 | // Rotations are normally relative to local axes, transform up |
---|
| 710 | this->setOrientation(this->getOrientation() * this->getWorldOrientation().Inverse() |
---|
| 711 | * rotation * this->getWorldOrientation()); |
---|
| 712 | break; |
---|
| 713 | } |
---|
| 714 | } |
---|
| 715 | |
---|
| 716 | /** |
---|
| 717 | @brief |
---|
[6417] | 718 | Makes this WorldEntity look at a specific target location. |
---|
[7401] | 719 | @param target |
---|
| 720 | An absolute point in the space which defines the direction of the entity |
---|
[2662] | 721 | @param relativeTo |
---|
[7401] | 722 | The TransformSpace of this translation |
---|
[2662] | 723 | @param localDirectionVector |
---|
| 724 | The vector which normally describes the natural direction of the object, usually -Z. |
---|
| 725 | */ |
---|
[3196] | 726 | void WorldEntity::lookAt(const Vector3& target, TransformSpace relativeTo, const Vector3& localDirectionVector) |
---|
[2662] | 727 | { |
---|
[3196] | 728 | Vector3 origin(0, 0, 0); |
---|
[2662] | 729 | switch (relativeTo) |
---|
| 730 | { |
---|
[3196] | 731 | case WorldEntity::Local: |
---|
[2662] | 732 | origin = Vector3::ZERO; |
---|
| 733 | break; |
---|
[3196] | 734 | case WorldEntity::Parent: |
---|
[2662] | 735 | origin = this->getPosition(); |
---|
| 736 | break; |
---|
[3196] | 737 | case WorldEntity::World: |
---|
[2662] | 738 | origin = this->getWorldPosition(); |
---|
| 739 | break; |
---|
| 740 | } |
---|
| 741 | this->setDirection(target - origin, relativeTo, localDirectionVector); |
---|
| 742 | } |
---|
| 743 | |
---|
| 744 | /** |
---|
| 745 | @brief |
---|
| 746 | Makes this WorldEntity look in specific direction. |
---|
[7401] | 747 | @param direction |
---|
| 748 | A point relative to the position of the WorldEntity which defines its orientation |
---|
[2662] | 749 | @param relativeTo |
---|
[7401] | 750 | The TransformSpace of this translation |
---|
[2662] | 751 | @param localDirectionVector |
---|
| 752 | The vector which normally describes the natural direction of the object, usually -Z. |
---|
| 753 | */ |
---|
[3196] | 754 | void WorldEntity::setDirection(const Vector3& direction, TransformSpace relativeTo, const Vector3& localDirectionVector) |
---|
[2662] | 755 | { |
---|
| 756 | Quaternion savedOrientation(this->getOrientation()); |
---|
[3196] | 757 | this->node_->setDirection(direction, static_cast<Ogre::Node::TransformSpace>(relativeTo), localDirectionVector); |
---|
[2662] | 758 | Quaternion newOrientation(this->node_->getOrientation()); |
---|
| 759 | this->node_->setOrientation(savedOrientation); |
---|
| 760 | this->setOrientation(newOrientation); |
---|
| 761 | } |
---|
| 762 | |
---|
| 763 | //! Activates physics if the CollisionType is not None. |
---|
| 764 | void WorldEntity::activatePhysics() |
---|
| 765 | { |
---|
| 766 | if (this->isActive() && this->hasPhysics() && !this->isPhysicsActive() && !this->parent_) |
---|
| 767 | { |
---|
| 768 | this->getScene()->addPhysicalObject(this); |
---|
| 769 | this->bPhysicsActive_ = true; |
---|
| 770 | this->bPhysicsActiveSynchronised_ = true; |
---|
| 771 | } |
---|
| 772 | } |
---|
| 773 | |
---|
| 774 | //! Deactivates physics but the CollisionType does not change. |
---|
| 775 | void WorldEntity::deactivatePhysics() |
---|
| 776 | { |
---|
| 777 | if (this->isPhysicsActive()) |
---|
| 778 | { |
---|
| 779 | this->getScene()->removePhysicalObject(this); |
---|
| 780 | this->bPhysicsActive_ = false; |
---|
| 781 | this->bPhysicsActiveSynchronised_ = false; |
---|
| 782 | } |
---|
| 783 | } |
---|
| 784 | |
---|
| 785 | //! Tells whether the object has already been added to the Bullet physics World. |
---|
| 786 | bool WorldEntity::addedToPhysicalWorld() const |
---|
| 787 | { |
---|
| 788 | return this->physicalBody_ && this->physicalBody_->isInWorld(); |
---|
| 789 | } |
---|
| 790 | |
---|
| 791 | /** |
---|
| 792 | @brief |
---|
[7401] | 793 | Sets the CollisionType. This alters the object significantly! |
---|
| 794 | @note |
---|
[2662] | 795 | Operation does not work on attached WorldEntities. |
---|
| 796 | */ |
---|
| 797 | void WorldEntity::setCollisionType(CollisionType type) |
---|
| 798 | { |
---|
| 799 | if (this->collisionType_ == type) |
---|
| 800 | return; |
---|
| 801 | |
---|
| 802 | // If we are already attached to a parent, this would be a bad idea.. |
---|
| 803 | if (this->parent_) |
---|
| 804 | { |
---|
[8858] | 805 | orxout(internal_warning) << "Cannot set the collision type of a WorldEntity with a parent." << endl; |
---|
[2662] | 806 | return; |
---|
| 807 | } |
---|
| 808 | |
---|
| 809 | // Check for type legality. Could be StaticEntity or MobileEntity. |
---|
| 810 | if (!this->isCollisionTypeLegal(type)) |
---|
| 811 | return; |
---|
| 812 | |
---|
| 813 | if (this->isPhysicsActive()) |
---|
| 814 | this->deactivatePhysics(); |
---|
| 815 | |
---|
| 816 | bool bReactivatePhysics = true; |
---|
| 817 | if (this->hasPhysics() && !this->isPhysicsActive()) |
---|
| 818 | bReactivatePhysics = false; |
---|
| 819 | |
---|
| 820 | // Check whether we have to create or destroy. |
---|
| 821 | if (type != None && this->collisionType_ == None) |
---|
| 822 | { |
---|
| 823 | /* |
---|
| 824 | HACK HACK HACK |
---|
| 825 | // Check whether there was some scaling applied. |
---|
| 826 | if (!this->node_->getScale().positionEquals(Vector3(1, 1, 1), 0.001)) |
---|
| 827 | { |
---|
[8858] | 828 | orxout(internal_warning) << "Cannot create a physical body if there is scaling applied to the node: Not yet implemented." << endl; |
---|
[2662] | 829 | return; |
---|
| 830 | } |
---|
| 831 | HACK HACK HACK |
---|
| 832 | */ |
---|
| 833 | // Create new rigid body |
---|
| 834 | btRigidBody::btRigidBodyConstructionInfo bodyConstructionInfo(0, this, this->collisionShape_->getCollisionShape()); |
---|
| 835 | this->physicalBody_ = new btRigidBody(bodyConstructionInfo); |
---|
| 836 | this->physicalBody_->setUserPointer(this); |
---|
| 837 | this->physicalBody_->setActivationState(DISABLE_DEACTIVATION); |
---|
| 838 | } |
---|
| 839 | else if (type == None && this->collisionType_ != None) |
---|
| 840 | { |
---|
| 841 | // Destroy rigid body |
---|
| 842 | assert(this->physicalBody_); |
---|
| 843 | deactivatePhysics(); |
---|
| 844 | delete this->physicalBody_; |
---|
| 845 | this->physicalBody_ = 0; |
---|
| 846 | this->collisionType_ = None; |
---|
| 847 | this->collisionTypeSynchronised_ = None; |
---|
| 848 | return; |
---|
| 849 | } |
---|
| 850 | |
---|
| 851 | // Change type |
---|
| 852 | switch (type) |
---|
| 853 | { |
---|
| 854 | case Dynamic: |
---|
[2855] | 855 | this->physicalBody_->setCollisionFlags(this->physicalBody_->getCollisionFlags() & !btCollisionObject::CF_STATIC_OBJECT & !btCollisionObject::CF_KINEMATIC_OBJECT); |
---|
[2662] | 856 | break; |
---|
| 857 | case Kinematic: |
---|
[3196] | 858 | this->physicalBody_->setCollisionFlags((this->physicalBody_->getCollisionFlags() & !btCollisionObject::CF_STATIC_OBJECT) | btCollisionObject::CF_KINEMATIC_OBJECT); |
---|
[2662] | 859 | break; |
---|
| 860 | case Static: |
---|
[3196] | 861 | this->physicalBody_->setCollisionFlags((this->physicalBody_->getCollisionFlags() & !btCollisionObject::CF_KINEMATIC_OBJECT) | btCollisionObject::CF_STATIC_OBJECT); |
---|
[2662] | 862 | break; |
---|
| 863 | case None: |
---|
| 864 | assert(false); // Doesn't happen |
---|
| 865 | return; |
---|
| 866 | } |
---|
| 867 | this->collisionType_ = type; |
---|
| 868 | this->collisionTypeSynchronised_ = type; |
---|
| 869 | |
---|
| 870 | // update mass and inertia tensor |
---|
| 871 | recalculateMassProps(); |
---|
| 872 | internalSetPhysicsProps(); |
---|
| 873 | collisionCallbackActivityChanged(); |
---|
| 874 | collisionResponseActivityChanged(); |
---|
| 875 | if (bReactivatePhysics) |
---|
| 876 | activatePhysics(); |
---|
| 877 | } |
---|
| 878 | |
---|
| 879 | //! Sets the CollisionType by string (used for the XMLPort) |
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| 880 | void WorldEntity::setCollisionTypeStr(const std::string& typeStr) |
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| 881 | { |
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[6417] | 882 | const std::string& typeStrLower = getLowercase(typeStr); |
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[2662] | 883 | CollisionType type; |
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| 884 | if (typeStrLower == "dynamic") |
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| 885 | type = Dynamic; |
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| 886 | else if (typeStrLower == "static") |
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| 887 | type = Static; |
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| 888 | else if (typeStrLower == "kinematic") |
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| 889 | type = Kinematic; |
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| 890 | else if (typeStrLower == "none") |
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| 891 | type = None; |
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| 892 | else |
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| 893 | ThrowException(ParseError, std::string("Attempting to set an unknown collision type: '") + typeStr + "'."); |
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| 894 | this->setCollisionType(type); |
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| 895 | } |
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| 896 | |
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| 897 | //! Gets the CollisionType by string (used for the XMLPort) |
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| 898 | std::string WorldEntity::getCollisionTypeStr() const |
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| 899 | { |
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| 900 | switch (this->getCollisionType()) |
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| 901 | { |
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| 902 | case Dynamic: |
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| 903 | return "dynamic"; |
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| 904 | case Kinematic: |
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| 905 | return "kinematic"; |
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| 906 | case Static: |
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| 907 | return "static"; |
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| 908 | case None: |
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| 909 | return "none"; |
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| 910 | default: |
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| 911 | assert(false); |
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| 912 | return ""; |
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| 913 | } |
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| 914 | } |
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| 915 | |
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| 916 | /** |
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| 917 | @brief |
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| 918 | Recalculates the accumulated child mass and calls recalculateMassProps() |
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| 919 | and notifies the parent of the change. |
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[7401] | 920 | @note |
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[2662] | 921 | Called by a child WE |
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| 922 | */ |
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| 923 | void WorldEntity::notifyChildMassChanged() |
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| 924 | { |
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| 925 | // Note: CollisionShape changes of a child get handled over the internal CompoundCollisionShape already |
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| 926 | // Recalculate mass |
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| 927 | this->childrenMass_ = 0.0f; |
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| 928 | for (std::set<WorldEntity*>::const_iterator it = this->children_.begin(); it != this->children_.end(); ++it) |
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| 929 | this->childrenMass_ += (*it)->getMass(); |
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| 930 | recalculateMassProps(); |
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| 931 | // Notify parent WE |
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| 932 | if (this->parent_) |
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| 933 | parent_->notifyChildMassChanged(); |
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| 934 | } |
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| 935 | |
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| 936 | /** |
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| 937 | @brief |
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| 938 | Undertakes the necessary steps to change the collision shape in Bullet, even at runtime. |
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[7401] | 939 | @note |
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[2662] | 940 | - called by this->collisionShape_ |
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| 941 | - May have a REALLY big overhead when called continuously at runtime, because then we need |
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| 942 | to remove the physical body from Bullet and add it again. |
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| 943 | */ |
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| 944 | void WorldEntity::notifyCollisionShapeChanged() |
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| 945 | { |
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| 946 | if (hasPhysics()) |
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| 947 | { |
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| 948 | // Bullet doesn't like sudden changes of the collision shape, so we remove and add it again |
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| 949 | if (this->addedToPhysicalWorld()) |
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| 950 | { |
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| 951 | this->deactivatePhysics(); |
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| 952 | this->physicalBody_->setCollisionShape(this->collisionShape_->getCollisionShape()); |
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| 953 | this->activatePhysics(); |
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| 954 | } |
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| 955 | else |
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| 956 | this->physicalBody_->setCollisionShape(this->collisionShape_->getCollisionShape()); |
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| 957 | } |
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| 958 | recalculateMassProps(); |
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| 959 | } |
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| 960 | |
---|
| 961 | //! Updates all mass dependent parameters (mass, inertia tensor and child mass) |
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| 962 | void WorldEntity::recalculateMassProps() |
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| 963 | { |
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| 964 | // Store local inertia for faster access. Evaluates to (0,0,0) if there is no collision shape. |
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| 965 | float totalMass = this->mass_ + this->childrenMass_; |
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| 966 | this->collisionShape_->calculateLocalInertia(totalMass, this->localInertia_); |
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| 967 | if (this->hasPhysics()) |
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| 968 | { |
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| 969 | if (this->isStatic()) |
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| 970 | { |
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| 971 | // Just set everything to zero |
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| 972 | this->physicalBody_->setMassProps(0.0f, btVector3(0, 0, 0)); |
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| 973 | } |
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[8858] | 974 | else if (totalMass == 0.0f) |
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[2662] | 975 | { |
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| 976 | // Use default values to avoid very large or very small values |
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[8858] | 977 | orxout(internal_warning) << "Setting the internal physical mass to 1.0 because mass_ is 0.0" << endl; |
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[2662] | 978 | btVector3 inertia(0, 0, 0); |
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| 979 | this->collisionShape_->calculateLocalInertia(1.0f, inertia); |
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| 980 | this->physicalBody_->setMassProps(1.0f, inertia); |
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| 981 | } |
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| 982 | else |
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| 983 | { |
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| 984 | this->physicalBody_->setMassProps(totalMass, this->localInertia_); |
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| 985 | } |
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| 986 | } |
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| 987 | } |
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| 988 | |
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[6417] | 989 | //! Copies our own parameters for restitution, angular factor, damping and friction to the bullet rigid body. |
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[2662] | 990 | void WorldEntity::internalSetPhysicsProps() |
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| 991 | { |
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| 992 | if (this->hasPhysics()) |
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| 993 | { |
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| 994 | this->physicalBody_->setRestitution(this->restitution_); |
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| 995 | this->physicalBody_->setAngularFactor(this->angularFactor_); |
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| 996 | this->physicalBody_->setDamping(this->linearDamping_, this->angularDamping_); |
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| 997 | this->physicalBody_->setFriction(this->friction_); |
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| 998 | } |
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| 999 | } |
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[2072] | 1000 | } |
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