Flag.h

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#ifndef GlobeEngine_Flag_h
#define GlobeEngine_Flag_h

#include "OpenGL_Includes.h"
#include "DrawableComponent.h"

namespace ge {
    class Flag : public ge::DrawableComponent
    {
    public:
        Flag();
        ~Flag();
        void clear();
        void create(GLuint slices, vmml::Vector3f origin, GLfloat radius, bool isPennant);
        void create();

        void update();
        void draw(std::shared_ptr<ge::Camera> _cam);
   
    private:
        
        vmml::Vector3i getVertexIndices(GLint vertexNr);
        GLint getIndex(GLint insertedItems);
        void setCircularVertexPositions(GLint index, GLfloat* positionBuffer, GLint slices, vmml::Vector3f origin, GLfloat radius, GLfloat verticalOffsetFromOrigin);
        void setTriangleVertexPositions(GLint index, GLfloat* positionBuffer, vmml::Vector3f origin, GLfloat xOffset, GLfloat yOffset, GLfloat zOffset);
        void setTriangleIndices(GLint index, GLuint* indicesBuffer, GLint firstVertex, GLint midVertex, GLint lastVertex, bool isCCW);
        void extrudeTriangleFan(GLint index, GLuint* indicesBuffer, GLuint sharedVertex, GLuint* vertices, GLuint stripLength, bool isCCW, bool isClosed);
        void extrudeTriangleStrip(GLint index, GLuint* indicesBuffer, GLuint* baseVertices, GLuint* topVertices, GLuint stripLength, bool isCCW, bool isClosed);
    };
}
#endif