$#include "BillboardSet.h"

/// %Billboard component.
class BillboardSet : public Drawable
{
public:
    /// Set material.
    void SetMaterial(Material* material);
    /// Set number of billboards.
    void SetNumBillboards(unsigned num);
    /// Set whether billboards are relative to the scene node.
    void SetRelative(bool enable);
    /// Set whether scene node scale affects billboards' size.
    void SetScaled(bool enable);
    /// Set whether billboards are sorted by distance.
    void SetSorted(bool enable);
    /// Set animation LOD bias.
    void SetAnimationLodBias(float bias);
    /// Mark for bounding box and vertex buffer update. Call after modifying the billboards.
    void Commit();
    
    /// Return material.
    Material* GetMaterial() const;
    /// Return number of billboards.
    unsigned GetNumBillboards() const { return billboards_.Size(); }
    /// Return billboard by index.
    Billboard* GetBillboard(unsigned index);
    /// Return whether billboards are relative to the scene node.
    bool IsRelative() const { return relative_; }
    /// Return whether scene node scale affects billboards' size.
    bool IsScaled() const { return scaled_; }
    /// Return whether billboards are sorted.
    bool IsSorted() const { return sorted_; }
    /// Return animation LOD bias.
    float GetAnimationLodBias() const { return animationLodBias_; }
    float GetAnimationLodBias() const;
};