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diff --git a/libraries/irrlicht-1.8.1/source/Irrlicht/CSphereSceneNode.cpp b/libraries/irrlicht-1.8.1/source/Irrlicht/CSphereSceneNode.cpp
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1// Copyright (C) 2002-2012 Nikolaus Gebhardt
2// This file is part of the "Irrlicht Engine".
3// For conditions of distribution and use, see copyright notice in irrlicht.h
4
5#include "CSphereSceneNode.h"
6#include "IVideoDriver.h"
7#include "ISceneManager.h"
8#include "S3DVertex.h"
9#include "os.h"
10#include "CShadowVolumeSceneNode.h"
11
12namespace irr
13{
14namespace scene
15{
16
17//! constructor
18CSphereSceneNode::CSphereSceneNode(f32 radius, u32 polyCountX, u32 polyCountY, ISceneNode* parent, ISceneManager* mgr, s32 id,
19 const core::vector3df& position, const core::vector3df& rotation, const core::vector3df& scale)
20: IMeshSceneNode(parent, mgr, id, position, rotation, scale), Mesh(0), Shadow(0),
21 Radius(radius), PolyCountX(polyCountX), PolyCountY(polyCountY)
22{
23 #ifdef _DEBUG
24 setDebugName("CSphereSceneNode");
25 #endif
26
27 Mesh = SceneManager->getGeometryCreator()->createSphereMesh(radius, polyCountX, polyCountY);
28}
29
30
31
32//! destructor
33CSphereSceneNode::~CSphereSceneNode()
34{
35 if (Shadow)
36 Shadow->drop();
37 if (Mesh)
38 Mesh->drop();
39}
40
41
42//! renders the node.
43void CSphereSceneNode::render()
44{
45 video::IVideoDriver* driver = SceneManager->getVideoDriver();
46
47 if (Mesh && driver)
48 {
49 driver->setMaterial(Mesh->getMeshBuffer(0)->getMaterial());
50 driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
51 if (Shadow)
52 Shadow->updateShadowVolumes();
53
54 driver->drawMeshBuffer(Mesh->getMeshBuffer(0));
55 if ( DebugDataVisible & scene::EDS_BBOX )
56 {
57 video::SMaterial m;
58 m.Lighting = false;
59 driver->setMaterial(m);
60 driver->draw3DBox(Mesh->getMeshBuffer(0)->getBoundingBox(), video::SColor(255,255,255,255));
61 }
62 }
63}
64
65
66//! Removes a child from this scene node.
67//! Implemented here, to be able to remove the shadow properly, if there is one,
68//! or to remove attached childs.
69bool CSphereSceneNode::removeChild(ISceneNode* child)
70{
71 if (child && Shadow == child)
72 {
73 Shadow->drop();
74 Shadow = 0;
75 }
76
77 return ISceneNode::removeChild(child);
78}
79
80
81//! Creates shadow volume scene node as child of this node
82//! and returns a pointer to it.
83IShadowVolumeSceneNode* CSphereSceneNode::addShadowVolumeSceneNode(
84 const IMesh* shadowMesh, s32 id, bool zfailmethod, f32 infinity)
85{
86 if (!SceneManager->getVideoDriver()->queryFeature(video::EVDF_STENCIL_BUFFER))
87 return 0;
88
89 if (!shadowMesh)
90 shadowMesh = Mesh; // if null is given, use the mesh of node
91
92 if (Shadow)
93 Shadow->drop();
94
95 Shadow = new CShadowVolumeSceneNode(shadowMesh, this, SceneManager, id, zfailmethod, infinity);
96 return Shadow;
97}
98
99
100//! returns the axis aligned bounding box of this node
101const core::aabbox3d<f32>& CSphereSceneNode::getBoundingBox() const
102{
103 return Mesh ? Mesh->getBoundingBox() : Box;
104}
105
106
107void CSphereSceneNode::OnRegisterSceneNode()
108{
109 if (IsVisible)
110 SceneManager->registerNodeForRendering(this);
111
112 ISceneNode::OnRegisterSceneNode();
113}
114
115
116//! returns the material based on the zero based index i. To get the amount
117//! of materials used by this scene node, use getMaterialCount().
118//! This function is needed for inserting the node into the scene hirachy on a
119//! optimal position for minimizing renderstate changes, but can also be used
120//! to directly modify the material of a scene node.
121video::SMaterial& CSphereSceneNode::getMaterial(u32 i)
122{
123 if (i>0 || !Mesh)
124 return ISceneNode::getMaterial(i);
125 else
126 return Mesh->getMeshBuffer(i)->getMaterial();
127}
128
129
130//! returns amount of materials used by this scene node.
131u32 CSphereSceneNode::getMaterialCount() const
132{
133 return 1;
134}
135
136
137//! Writes attributes of the scene node.
138void CSphereSceneNode::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const
139{
140 ISceneNode::serializeAttributes(out, options);
141
142 out->addFloat("Radius", Radius);
143 out->addInt("PolyCountX", PolyCountX);
144 out->addInt("PolyCountY", PolyCountY);
145}
146
147
148//! Reads attributes of the scene node.
149void CSphereSceneNode::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options)
150{
151 f32 oldRadius = Radius;
152 u32 oldPolyCountX = PolyCountX;
153 u32 oldPolyCountY = PolyCountY;
154
155 Radius = in->getAttributeAsFloat("Radius");
156 PolyCountX = in->getAttributeAsInt("PolyCountX");
157 PolyCountY = in->getAttributeAsInt("PolyCountY");
158 // legacy values read for compatibility with older versions
159 u32 polyCount = in->getAttributeAsInt("PolyCount");
160 if (PolyCountX ==0 && PolyCountY == 0)
161 PolyCountX = PolyCountY = polyCount;
162
163 Radius = core::max_(Radius, 0.0001f);
164
165 if ( !core::equals(Radius, oldRadius) || PolyCountX != oldPolyCountX || PolyCountY != oldPolyCountY)
166 {
167 if (Mesh)
168 Mesh->drop();
169 Mesh = SceneManager->getGeometryCreator()->createSphereMesh(Radius, PolyCountX, PolyCountY);
170 }
171
172 ISceneNode::deserializeAttributes(in, options);
173}
174
175//! Creates a clone of this scene node and its children.
176ISceneNode* CSphereSceneNode::clone(ISceneNode* newParent, ISceneManager* newManager)
177{
178 if (!newParent)
179 newParent = Parent;
180 if (!newManager)
181 newManager = SceneManager;
182
183 CSphereSceneNode* nb = new CSphereSceneNode(Radius, PolyCountX, PolyCountY, newParent,
184 newManager, ID, RelativeTranslation);
185
186 nb->cloneMembers(this, newManager);
187 nb->getMaterial(0) = Mesh->getMeshBuffer(0)->getMaterial();
188 nb->Shadow = Shadow;
189 if ( nb->Shadow )
190 nb->Shadow->grab();
191
192 if ( newParent )
193 nb->drop();
194 return nb;
195}
196
197} // end namespace scene
198} // end namespace irr
199
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