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#ifndef ODFAEG_VERTEXARRAY_HPP
#define ODFAEG_VERTEXARRAY_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include "GL/glew.h"
#include <SFML/OpenGL.hpp>
#include "vertex.h"
#include <SFML/Graphics/PrimitiveType.hpp>
#include <SFML/Graphics/Rect.hpp>
#include "drawable.h"
#include <vector>
#include <SFML/Window/Context.hpp>
#include "vbo.h"
namespace odfaeg {
////////////////////////////////////////////////////////////
/// \brief Define a set of one or more 3D primitives
///
////////////////////////////////////////////////////////////
class ODFAEG_GRAPHICS_API VertexArray : public Drawable, public sf::GlResource
{
public :
////////////////////////////////////////////////////////////
/// \brief Default constructor
///
/// Creates an empty vertex array.
///
////////////////////////////////////////////////////////////
VertexArray();
void computeNormals();
void addInstancedRenderingInfos(unsigned int numIndexes, unsigned int baseVertex, unsigned int baseIndice);
void addIndex(unsigned int index);
std::vector<unsigned int> getIndexes();
////////////////////////////////////////////////////////////
/// \brief Construct the vertex array with a type and an initial number of vertices
///
/// \param type Type of primitives
/// \param vertexCount Initial number of vertices in the array
///
////////////////////////////////////////////////////////////
explicit VertexArray(sf::PrimitiveType type, unsigned int vertexCount = 0);
////////////////////////////////////////////////////////////
/// \brief Return the vertex count
///
/// \return Number of vertices in the array
///
////////////////////////////////////////////////////////////
unsigned int getVertexCount() const;
////////////////////////////////////////////////////////////
/// \brief Get a read-write access to a vertex by its index
///
/// This function doesn't check \a index, it must be in range
/// [0, getVertexCount() - 1]. The behaviour is undefined
/// otherwise.
///
/// \param index Index of the vertex to get
///
/// \return Reference to the index-th vertex
///
/// \see getVertexCount
///
////////////////////////////////////////////////////////////
Vertex& operator [](unsigned int index);
////////////////////////////////////////////////////////////
/// \brief Get a read-only access to a vertex by its index
///
/// This function doesn't check \a index, it must be in range
/// [0, getVertexCount() - 1]. The behaviour is undefined
/// otherwise.
///
/// \param index Index of the vertex to get
///
/// \return Const reference to the index-th vertex
///
/// \see getVertexCount
///
////////////////////////////////////////////////////////////
const Vertex& operator [](unsigned int index) const;
const sf::Vector3f getLocal(unsigned int index) const;
std::vector<unsigned int> getBaseIndexes();
////////////////////////////////////////////////////////////
/// \brief Clear the vertex array
///
/// This function removes all the vertices from the array.
/// It doesn't deallocate the corresponding memory, so that
/// adding new vertices after clearing doesn't involve
/// reallocating all the memory.
///
////////////////////////////////////////////////////////////
void clear();
////////////////////////////////////////////////////////////
/// \brief Resize the vertex array
///
/// If \a vertexCount is greater than the current size, the previous
/// vertices are kept and new (default-constructed) vertices are
/// added.
/// If \a vertexCount is less than the current size, existing vertices
/// are removed from the array.
///
/// \param vertexCount New size of the array (number of vertices)
///
////////////////////////////////////////////////////////////
void resize(unsigned int vertexCount);
////////////////////////////////////////////////////////////
/// \brief Add a vertex to the array
///
/// \param vertex Vertex to add
///
////////////////////////////////////////////////////////////
void append(const Vertex& vertex);
////////////////////////////////////////////////////////////
/// \brief Set the type of primitives to draw
///
/// This function defines how the vertices must be interpreted
/// when it's time to draw them:
/// \li As points
/// \li As lines
/// \li As triangles
/// \li As quads
/// The default primitive type is sf::Points.
///
/// \param type Type of primitive
///
////////////////////////////////////////////////////////////
void setPrimitiveType(sf::PrimitiveType type);
////////////////////////////////////////////////////////////
/// \brief Get the type of primitives drawn by the vertex array
///
/// \return Primitive type
///
////////////////////////////////////////////////////////////
sf::PrimitiveType getPrimitiveType() const;
BoundingBox getBounds();
bool operator== (VertexArray &other) const;
void updateVBOBuffer();
template <typename Archive>
void serialize (Archive & ar) {
ar(m_indexes);
ar(m_vertices);
ar(m_primitiveType);
}
void onLoad() {
updateVBOBuffer();
}
~VertexArray();
private :
////////////////////////////////////////////////////////////
/// \brief Draw the vertex array to a render target
///
/// \param target Render target to draw to
/// \param states Current render states
///
////////////////////////////////////////////////////////////
void draw(RenderTarget& target, RenderStates states);
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
std::vector<sf::Vector3f> m_normals;
std::vector<sf::Vector3f> m_locals;
std::vector<unsigned int> m_numIndexes;
std::vector<unsigned int> m_baseVertices;
std::vector<unsigned int> m_baseIndexes;
std::vector<unsigned int> m_indexes;
std::vector<Vertex> m_vertices; ///< Vertices contained in the array
sf::PrimitiveType m_primitiveType; ///< Type of primitives to draw
unsigned int vboVertexBuffer,vboNormalBuffer, vboIndexBuffer;
bool needToUpdateVBOBuffer;
};
} // namespace odfaeg
#endif |
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