158 lines
4.3 KiB
C++
158 lines
4.3 KiB
C++
// Copyright (C) 2002-2009 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#include "CSphereSceneNode.h"
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#include "IVideoDriver.h"
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#include "ISceneManager.h"
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#include "S3DVertex.h"
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#include "os.h"
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namespace irr
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{
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namespace scene
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{
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//! constructor
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CSphereSceneNode::CSphereSceneNode(f32 radius, u32 polyCountX, u32 polyCountY, ISceneNode* parent, ISceneManager* mgr, s32 id,
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const core::vector3df& position, const core::vector3df& rotation, const core::vector3df& scale)
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: IMeshSceneNode(parent, mgr, id, position, rotation, scale), Mesh(0),
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Radius(radius), PolyCountX(polyCountX), PolyCountY(polyCountY)
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{
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#ifdef _DEBUG
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setDebugName("CSphereSceneNode");
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#endif
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Mesh = SceneManager->getGeometryCreator()->createSphereMesh(radius, polyCountX, polyCountY);
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}
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//! destructor
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CSphereSceneNode::~CSphereSceneNode()
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{
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if (Mesh)
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Mesh->drop();
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}
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//! renders the node.
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void CSphereSceneNode::render()
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{
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video::IVideoDriver* driver = SceneManager->getVideoDriver();
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if (Mesh && driver)
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{
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driver->setMaterial(Mesh->getMeshBuffer(0)->getMaterial());
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driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
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driver->drawMeshBuffer(Mesh->getMeshBuffer(0));
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if ( DebugDataVisible & scene::EDS_BBOX )
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{
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video::SMaterial m;
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m.Lighting = false;
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driver->setMaterial(m);
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driver->draw3DBox(Mesh->getMeshBuffer(0)->getBoundingBox(), video::SColor(255,255,255,255));
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}
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}
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}
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//! returns the axis aligned bounding box of this node
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const core::aabbox3d<f32>& CSphereSceneNode::getBoundingBox() const
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{
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return Mesh ? Mesh->getBoundingBox() : Box;
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}
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void CSphereSceneNode::OnRegisterSceneNode()
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{
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if (IsVisible)
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SceneManager->registerNodeForRendering(this);
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ISceneNode::OnRegisterSceneNode();
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}
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//! returns the material based on the zero based index i. To get the amount
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//! of materials used by this scene node, use getMaterialCount().
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//! This function is needed for inserting the node into the scene hirachy on a
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//! optimal position for minimizing renderstate changes, but can also be used
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//! to directly modify the material of a scene node.
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video::SMaterial& CSphereSceneNode::getMaterial(u32 i)
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{
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if (i>0 || !Mesh)
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return ISceneNode::getMaterial(i);
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else
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return Mesh->getMeshBuffer(i)->getMaterial();
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}
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//! returns amount of materials used by this scene node.
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u32 CSphereSceneNode::getMaterialCount() const
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{
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return 1;
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}
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//! Writes attributes of the scene node.
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void CSphereSceneNode::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
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{
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ISceneNode::serializeAttributes(out, options);
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out->addFloat("Radius", Radius);
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out->addInt("PolyCountX", PolyCountX);
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out->addInt("PolyCountY", PolyCountY);
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}
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//! Reads attributes of the scene node.
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void CSphereSceneNode::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
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{
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f32 oldRadius = Radius;
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u32 oldPolyCountX = PolyCountX;
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u32 oldPolyCountY = PolyCountY;
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Radius = in->getAttributeAsFloat("Radius");
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PolyCountX = in->getAttributeAsInt("PolyCountX");
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PolyCountY = in->getAttributeAsInt("PolyCountY");
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// legacy values read for compatibility with older versions
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u32 polyCount = in->getAttributeAsInt("PolyCount");
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if (PolyCountX ==0 && PolyCountY == 0)
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PolyCountX = PolyCountY = polyCount;
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Radius = core::max_(Radius, 0.0001f);
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if ( !core::equals(Radius, oldRadius) || PolyCountX != oldPolyCountX || PolyCountY != oldPolyCountY)
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{
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if (Mesh)
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Mesh->drop();
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Mesh = SceneManager->getGeometryCreator()->createSphereMesh(Radius, PolyCountX, PolyCountY);
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}
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ISceneNode::deserializeAttributes(in, options);
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}
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//! Creates a clone of this scene node and its children.
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ISceneNode* CSphereSceneNode::clone(ISceneNode* newParent, ISceneManager* newManager)
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{
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if (!newParent)
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newParent = Parent;
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if (!newManager)
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newManager = SceneManager;
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CSphereSceneNode* nb = new CSphereSceneNode(Radius, PolyCountX, PolyCountY, newParent,
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newManager, ID, RelativeTranslation);
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nb->cloneMembers(this, newManager);
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nb->getMaterial(0) = Mesh->getMeshBuffer(0)->getMaterial();
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if ( newParent )
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nb->drop();
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return nb;
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}
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} // end namespace scene
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} // end namespace irr
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