added axes entity

TheGame/renderwidget.cpp

 #include <math.h>
 #include <QDebug>
 #include "entities/ugeentitycube.h"
+#include "entities/ugeentityaxes.h"
 
 RenderWidget::RenderWidget(QWidget *parent) :
     QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
     UGEEntityCube* cube = new UGEEntityCube(_engine);
     cube->move(Vector3D(0, 1, 0));
     _engine->addEntity(cube);
+    _engine->addEntity(new UGEEntityAxes(_engine));
     setMouseTracking(false);
     setFocusPolicy(Qt::StrongFocus);
 }
                 );
     _device->lookAt(center, Vector3D(0.0f, 0.0f, 0.0f));
     _engine->draw();
-
-    drawAxes();
 }
 
 void RenderWidget::resizeGL(int width, int height)
     }
     update();
 }
-
-void RenderWidget::drawAxes()
-{
-    _device->drawLine(ColorVector3D(Qt::red, 0.0, 0.0, 0.0), ColorVector3D(Qt::red, 1.0, 0.0, 0.0), 2.5);
-    _device->drawLine(ColorVector3D(Qt::green, 0.0, 0.0, 0.0), ColorVector3D(Qt::green, 0.0, 1.0, 0.0), 2.5);
-    _device->drawLine(ColorVector3D(Qt::blue, 0.0, 0.0, 0.0), ColorVector3D(Qt::blue, 0.0, 0.0, 1.0), 2.5);
-
-    _device->drawPolygon(QList<ColorVector3D>() << ColorVector3D(Qt::red, 0, 0, 0) << ColorVector3D(Qt::green, 1, 0, 0) << ColorVector3D(Qt::transparent, 1, 1, 0) << ColorVector3D(Qt::blue, 0, 1, 0));
-
-}

TheGame/renderwidget.h

 signals:
 
 public slots:
-    void drawAxes();
 
 private:
     OpenGLRenderDevice* _device;

UGameEngine/UGameEngine.pro

     entities/ugeentity.cpp \
     utils/vector3d.cpp \
     utils/colorvector3d.cpp \
-    entities/ugeentitycube.cpp
+    entities/ugeentitycube.cpp \
+    entities/ugeentityaxes.cpp
 
 HEADERS += engine/ugameengine.h\
     engine/abstractrenderdevice.h \
     entities/ugeentity.h \
     utils/vector3d.h \
     utils/colorvector3d.h \
-    entities/ugeentitycube.h
+    entities/ugeentitycube.h \
+    entities/ugeentityaxes.h
 
 unix {
     target.path = /usr/lib

UGameEngine/entities/ugeentityaxes.cpp

+#include "ugeentityaxes.h"
+
+UGEEntityAxes::UGEEntityAxes(QObject *parent) :
+    UGEEntity(parent)
+{
+}
+
+void UGEEntityAxes::draw(AbstractRenderDevice *device)
+{
+    drawLine(device, ColorVector3D(Qt::red, 0.0, 0.0, 0.0), ColorVector3D(Qt::red, 1.0, 0.0, 0.0), 2.5);
+    drawLine(device, ColorVector3D(Qt::green, 0.0, 0.0, 0.0), ColorVector3D(Qt::green, 0.0, 1.0, 0.0), 2.5);
+    drawLine(device, ColorVector3D(Qt::blue, 0.0, 0.0, 0.0), ColorVector3D(Qt::blue, 0.0, 0.0, 1.0), 2.5);
+}

UGameEngine/entities/ugeentityaxes.h

+#ifndef UGEENTITYAXES_H
+#define UGEENTITYAXES_H
+
+#include "entities/ugeentity.h"
+
+class UGEEntityAxes : public UGEEntity
+{
+    Q_OBJECT
+public:
+    explicit UGEEntityAxes(QObject *parent = 0);
+
+    virtual void draw(AbstractRenderDevice* device);
+
+signals:
+
+public slots:
+
+};
+
+#endif // UGEENTITYAXES_H