193 lines
4.3 KiB
C++
193 lines
4.3 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file physxForceFieldShapeGroup.cxx
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* @author enn0x
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* @date 2009-11-11
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*/
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#include "physxForceFieldShapeGroup.h"
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#include "physxForceFieldShapeGroupDesc.h"
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#include "physxForceField.h"
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#include "physxForceFieldShape.h"
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TypeHandle PhysxForceFieldShapeGroup::_type_handle;
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/**
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*
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*/
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void PhysxForceFieldShapeGroup::
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link(NxForceFieldShapeGroup *groupPtr) {
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// Link self
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_ptr = groupPtr;
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_ptr->userData = this;
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_error_type = ET_ok;
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set_name(groupPtr->getName());
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PhysxScene *scene = (PhysxScene *)_ptr->getScene().userData;
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scene->_ffgroups.add(this);
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// Link shapes
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NxU32 nShapes = _ptr->getNbShapes();
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_ptr->resetShapesIterator();
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for (NxU32 i=0; i < nShapes; i++) {
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NxForceFieldShape *shapePtr = _ptr->getNextShape();
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PhysxForceFieldShape *shape = PhysxForceFieldShape::factory(shapePtr->getType());
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shape->link(shapePtr);
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}
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}
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/**
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*
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*/
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void PhysxForceFieldShapeGroup::
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unlink() {
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// Unlink shapes
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NxU32 nShapes = _ptr->getNbShapes();
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_ptr->resetShapesIterator();
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for (NxU32 i=0; i < nShapes; i++) {
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NxForceFieldShape *shapePtr = _ptr->getNextShape();
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PhysxForceFieldShape *shape = (PhysxForceFieldShape *)shapePtr->userData;
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shape->unlink();
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}
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// Unlink self
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_ptr->userData = nullptr;
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_error_type = ET_released;
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PhysxScene *scene = (PhysxScene *)_ptr->getScene().userData;
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scene->_ffgroups.remove(this);
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}
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/**
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* Releases the force field shape.
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*/
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void PhysxForceFieldShapeGroup::
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release() {
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nassertv(_error_type == ET_ok);
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unlink();
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_ptr->getScene().releaseForceFieldShapeGroup(*_ptr);
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_ptr = nullptr;
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}
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/**
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* Returns the scene that owns this force field shape group.
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*/
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PhysxScene *PhysxForceFieldShapeGroup::
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get_scene() const {
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nassertr(_error_type == ET_ok, nullptr);
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return (PhysxScene *)(_ptr->getScene().userData);
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}
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/**
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* Returns the force field of this group if this is an include group. If not
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* NULL will be returned.
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*/
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PhysxForceField *PhysxForceFieldShapeGroup::
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get_force_field() const {
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nassertr(_error_type == ET_ok, nullptr);
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if (_ptr->getForceField() == nullptr) {
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return nullptr;
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}
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else {
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return (PhysxForceField *)(_ptr->getForceField()->userData);
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}
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}
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/**
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* Saves the state of the force field shape group object to a descriptor.
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*/
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void PhysxForceFieldShapeGroup::
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save_to_desc(PhysxForceFieldShapeGroupDesc &groupDesc) const {
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nassertv(_error_type == ET_ok);
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_ptr->saveToDesc(groupDesc._desc);
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}
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/**
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* Sets a name string for the object that can be retrieved with get_name().
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* This is for debugging and is not used by the engine.
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*/
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void PhysxForceFieldShapeGroup::
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set_name(const char *name) {
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nassertv(_error_type == ET_ok);
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_name = name ? name : "";
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_ptr->setName(_name.c_str());
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}
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/**
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* Returns the name string.
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*/
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const char *PhysxForceFieldShapeGroup::
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get_name() const {
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nassertr(_error_type == ET_ok, "");
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return _ptr->getName();
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}
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/**
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* Returns the number of shapes assigned to the force field shape group.
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*/
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unsigned int PhysxForceFieldShapeGroup::
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get_num_shapes() const {
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nassertr(_error_type == ET_ok, -1);
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return _ptr->getNbShapes();
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}
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/**
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* Creates a force field shape and adds it to the group.
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*/
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PhysxForceFieldShape *PhysxForceFieldShapeGroup::
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create_shape(PhysxForceFieldShapeDesc &desc) {
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nassertr(_error_type == ET_ok, nullptr);
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nassertr(desc.is_valid(),nullptr);
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PhysxForceFieldShape *shape = PhysxForceFieldShape::factory(desc.ptr()->getType());
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nassertr(shape, nullptr);
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NxForceFieldShape *shapePtr = _ptr->createShape(*desc.ptr());
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nassertr(shapePtr, nullptr);
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shape->link(shapePtr);
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return shape;
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}
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/**
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* Returns the i-th shape in the force field group.
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*/
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PhysxForceFieldShape *PhysxForceFieldShapeGroup::
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get_shape(unsigned int idx) const {
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nassertr(_error_type == ET_ok, nullptr);
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nassertr_always(idx < _ptr->getNbShapes(), nullptr);
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NxForceFieldShape *shapePtr;
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NxU32 nShapes = _ptr->getNbShapes();
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_ptr->resetShapesIterator();
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for (NxU32 i=0; i <= idx; i++) {
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shapePtr = _ptr->getNextShape();
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}
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return (PhysxForceFieldShape *)(shapePtr->userData);
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}
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