[2764] | 1 | #ifndef __SCENEENTITY_H
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| 2 | #define __SCENEENTITY_H
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| 3 |
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[2818] | 4 | #include "glInterface.h"
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[2819] | 5 | #include <Cg/cg.h>
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| 6 | #include <Cg/cgGL.h>
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[2764] | 7 | #include "common.h"
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| 8 | #include "AxisAlignedBox3.h"
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| 9 | #include "Triangle3.h"
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[2839] | 10 | #include "LODInfo.h"
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[2764] | 11 |
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[2819] | 12 |
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[2776] | 13 | namespace CHCDemoEngine
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[2764] | 14 | {
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| 15 |
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| 16 | class Material;
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| 17 | class Geometry;
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| 18 | class RenderState;
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[2840] | 19 | class Transform3;
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[2844] | 20 | class Camera;
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[2764] | 21 |
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[2840] | 22 |
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[2764] | 23 | /** Class representing a scene entity.
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[2793] | 24 | A scene entity basically consists of geometry, transformation, and a material
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[2764] | 25 | */
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| 26 | class SceneEntity
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| 27 | {
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[2802] | 28 | friend class RenderQueue;
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[2980] | 29 | friend class EntityMerger;
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[2802] | 30 |
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[2764] | 31 | public:
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[2839] | 32 |
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[2764] | 33 | /** Creates a scene entity.
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| 34 | */
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[2840] | 35 | SceneEntity(Transform3 *trafo);
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[2792] | 36 |
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| 37 | ~SceneEntity();
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[2764] | 38 | /** Renders this node.
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| 39 | */
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| 40 | void Render(RenderState *state);
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[2839] | 41 | /** Set pointer to the shape
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[2764] | 42 | */
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[2839] | 43 | void AddShape(Shape *shape);
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[2764] | 44 | /** See set
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| 45 | */
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[2839] | 46 | inline Shape *GetShape(int i) const { return mShapes[i]; }
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| 47 | /** Returns number of shapes in vector.
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| 48 | */
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| 49 | inline int GetNumShapes() { return (int)mShapes.size(); }
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[2764] | 50 | /** Set pointer to the geometry
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| 51 | */
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[2840] | 52 | void SetTransform(Transform3 *trafo);
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[2764] | 53 | /** set frame where we last rendered this node
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| 54 | */
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| 55 | void SetLastRendered(int lastRendered);
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| 56 | /** returns frame where we last visited this node
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| 57 | */
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| 58 | int GetLastRendered() const;
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[2839] | 59 | /** Returns the trafo of this scene entity.
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| 60 | */
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[2840] | 61 | inline Transform3 *GetTransform() const { return mTransform; }
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[2844] | 62 | /** Counts number of triangles in this entity using the specified lod level
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| 63 | with 0 being the highest or the current lod level (if the argument is -1).
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| 64 | */
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[2848] | 65 | int CountNumTriangles(int lodLevel = -1);
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[2844] | 66 | /** Returns the bounding box.
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| 67 | */
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| 68 | AxisAlignedBox3 GetBoundingBox() const;
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| 69 | /** Returns the transformed bounding box.
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| 70 | */
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| 71 | AxisAlignedBox3 GetTransformedBoundingBox() const;
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| 72 |
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[2764] | 73 |
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[2841] | 74 |
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[2844] | 75 | ////////////////
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[2842] | 76 |
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[2847] | 77 |
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[2844] | 78 | /** Returns shapes of specified lod level
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| 79 | */
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| 80 | void GetLODLevel(int level, ShapeContainer::iterator &start, ShapeContainer::iterator &end);
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| 81 | /** Returns shapes of current lod level
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| 82 | */
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| 83 | void GetCurrentLODLevel(ShapeContainer::iterator &start, ShapeContainer::iterator &end);
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| 84 | /** Adds a new lod level.
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| 85 | */
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| 86 | void AddLODLevel(LODLevel *lod) { mLODLevels.push_back(lod); }
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| 87 | /** Returns numbers of lod levels.
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| 88 | */
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| 89 | int GetNumLODLevels() const { return (int)mLODLevels.size(); }
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[2847] | 90 | /** Returns transformed center point of this shape.
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| 91 | */
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| 92 | Vector3 GetCenter() const;
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[2865] | 93 | /** If false, the highest (most detailed) LOD level is used for all entities.
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| 94 | */
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| 95 | static void SetUseLODs(bool useLODs) { sUseLODs = useLODs; }
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[2847] | 96 |
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[2848] | 97 |
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[2764] | 98 | protected:
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| 99 |
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[2847] | 100 | /** Internally updates current lod level.
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| 101 | */
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| 102 | void UpdateLODs(const Vector3 &viewPoint);
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[2848] | 103 | /** Returns updated index of current lod level.
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| 104 | */
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| 105 | int GetCurrentLODLevel();
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[2847] | 106 |
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| 107 |
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| 108 | /// the bounding box
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[2844] | 109 | AxisAlignedBox3 mBox;
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[2764] | 110 | /// transform matrix
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[2840] | 111 | Transform3 *mTransform;
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| 112 | /// Stores information about the LOD levels
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[2844] | 113 | LODLevelContainer mLODLevels;
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[2840] | 114 | /// the renderable shapes
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[2839] | 115 | ShapeContainer mShapes;
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[2840] | 116 | /// when this entity was last rendered
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[2764] | 117 | int mLastRendered;
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[2844] | 118 |
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| 119 | int mCurrentLODLevel;
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[2847] | 120 | /// which frame the lod info was last updated
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| 121 | int mLODLastUpdated;
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[2848] | 122 | /// the center of gravity of this scene entity
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[2847] | 123 | Vector3 mCenter;
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[2865] | 124 |
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| 125 | static bool sUseLODs;
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[2764] | 126 | };
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| 127 |
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| 128 | }
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| 129 |
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| 130 | #endif // __SCENEENTITY_H |
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