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    41 

    42 #ifndef CUBE_H

    43 #define CUBE_H

    44 

    45 #include <QtOpenGL/qgl.h>

    46 #include <QtCore/qvector.h>

    47 #include <QtGui/qmatrix4x4.h>

    48 #include <QtGui/qvector3d.h>

    49 #include <QtGui/qvector2d.h>

    50 

    51 QT_BEGIN_NAMESPACE

    52 class QPropertyAnimation;

    53 QT_END_NAMESPACE

    54 

    55 class Geometry

    56 {

    57 public:

    58     void loadArrays() const;

    59     void addQuad(const QVector3D &a, const QVector3D &b,

    60                  const QVector3D &c, const QVector3D &d,

    61                  const QVector<QVector2D> &tex);

    62     void setColors(int start, GLfloat colors[4][4]);

    63     const GLushort *indices() const { return faces.constData(); }

    64     int count() const { return faces.count(); }

    65 private:

    66     QVector<GLushort> faces;

    67     QVector<QVector3D> vertices;

    68     QVector<QVector3D> normals;

    69     QVector<QVector2D> texCoords;

    70     QVector<QVector4D> colors;

    71     int append(const QVector3D &a, const QVector3D &n, const QVector2D &t);

    72     void addTri(const QVector3D &a, const QVector3D &b, const QVector3D &c, const QVector3D &n);

    73     friend class Tile;

    74 };

    75 

    76 class Tile

    77 {

    78 public:

    79     void draw() const;

    80     void setColors(GLfloat[4][4]);

    81 protected:

    82     Tile(const QVector3D &loc = QVector3D());

    83     QVector3D location;

    84     QQuaternion orientation;

    85 private:

    86     int start;

    87     int count;

    88     bool useFlatColor;

    89     GLfloat faceColor[4];

    90     Geometry *geom;

    91     friend class TileBuilder;

    92 };

    93 

    94 class TileBuilder

    95 {

    96 public:

    97     enum { bl, br, tr, tl };

    98     TileBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);

    99     Tile *newTile(const QVector3D &loc = QVector3D()) const;

   100     void setColor(QColor c) { color = c; }

   101 protected:

   102     void initialize(Tile *) const;

   103     QVector<QVector3D> verts;

   104     QVector<QVector2D> tex;

   105     int start;

   106     int count;

   107     Geometry *geom;

   108     QColor color;

   109 };

   110 

   111 class Cube : public QObject, public Tile

   112 {

   113     Q_OBJECT

   114     Q_PROPERTY(qreal range READ range WRITE setRange)

   115     Q_PROPERTY(qreal altitude READ altitude WRITE setAltitude)

   116     Q_PROPERTY(qreal rotation READ rotation WRITE setRotation)

   117 public:

   118     Cube(const QVector3D &loc = QVector3D());

   119     ~Cube();

   120     qreal range() { return location.x(); }

   121     void setRange(qreal r);

   122     qreal altitude() { return location.y(); }

   123     void setAltitude(qreal a);

   124     qreal rotation() { return rot; }

   125     void setRotation(qreal r);

   126     void removeBounce();

   127     void startAnimation();

   128     void setAnimationPaused(bool paused);

   129 signals:

   130     void changed();

   131 private:

   132     qreal rot;

   133     QPropertyAnimation *r;

   134     QPropertyAnimation *a;

   135     QPropertyAnimation *rtn;

   136     qreal startx;

   137     friend class CubeBuilder;

   138 };

   139 

   140 class CubeBuilder : public TileBuilder

   141 {

   142 public:

   143     CubeBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);

   144     Cube *newCube(const QVector3D &loc = QVector3D()) const;

   145 private:

   146     mutable int ix;

   147 };

   148 

   149 #endif // CUBE_H