$#include "Light.h"

/// %Light types.
enum LightType
{
    LIGHT_DIRECTIONAL = 0,
    LIGHT_SPOT,
    LIGHT_POINT
};

/// %Light component.
class Light : public Drawable
{
    
public:
    /// Set light type.
    void SetLightType(LightType type);
    /// Set vertex lighting mode.
    void SetPerVertex(bool enable);
    /// Set color.
    void SetColor(const Color& color);
    /// Set specular intensity.
    void SetSpecularIntensity(float intensity);
    /// Set range.
    void SetRange(float range);
    /// Set spotlight field of view.
    void SetFov(float fov);
    /// Set spotlight aspect ratio.
    void SetAspectRatio(float aspectRatio);
    /// Set fade out start distance.
    void SetFadeDistance(float distance);
    /// Set shadow fade out start distance. Only has effect if shadow distance is also non-zero.
    void SetShadowFadeDistance(float distance);
    /// Set shadow depth bias parameters.
    void SetShadowBias(const BiasParameters& parameters);
    /// Set directional light cascaded shadow parameters.
    void SetShadowCascade(const CascadeParameters& parameters);
    /// Set shadow map focusing parameters.
    void SetShadowFocus(const FocusParameters& parameters);
    /// Set shadow intensity between 0.0 - 1.0. 0.0 (the default) gives fully dark shadows.
    void SetShadowIntensity(float intensity);
    /// Set shadow resolution between 0.25 - 1.0. Determines the shadow map to use.
    void SetShadowResolution(float resolution);
    /// Set shadow camera near/far clip distance ratio.
    void SetShadowNearFarRatio(float nearFarRatio);
    /// Set range attenuation texture.
    void SetRampTexture(Texture* texture);
    /// Set spotlight attenuation texture.
    void SetShapeTexture(Texture* texture);
    
    /// Return light type.
    LightType GetLightType() const;
    /// Return vertex lighting mode.
    bool GetPerVertex() const;
    /// Return color.
    const Color& GetColor() const;
    /// Return specular intensity.
    float GetSpecularIntensity() const;
    /// Return range.
    float GetRange() const;
    /// Return spotlight field of view.
    float GetFov() const;
    /// Return spotlight aspect ratio.
    float GetAspectRatio() const;
    /// Return fade start distance.
    float GetFadeDistance() const;
    /// Return shadow fade start distance.
    float GetShadowFadeDistance() const;
    /// Return shadow depth bias parameters.
    const BiasParameters& GetShadowBias() const;
    /// Return directional light cascaded shadow parameters.
    const CascadeParameters& GetShadowCascade() const;
    /// Return shadow map focus parameters.
    const FocusParameters& GetShadowFocus() const;
    /// Return shadow intensity.
    float GetShadowIntensity() const;
    /// Return shadow resolution.
    float GetShadowResolution() const;
    /// Return shadow camera near/far clip distance ratio.
    float GetShadowNearFarRatio() const;
    /// Return range attenuation texture.
    Texture* GetRampTexture() const;
    /// Return spotlight attenuation texture.
    Texture* GetShapeTexture() const;
    /// Return spotlight frustum.
    Frustum GetFrustum() const;
};