CameraAnimator.h

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#pragma once
 
#include "../../Math/Vec3.h"
#include <functional>
 
// Forward declaration
class BaseCamera;
 
class CameraAnimator
{
public:
    CameraAnimator(BaseCamera &camera);
 
    void Update(float deltaTime);
 
    void FocusOnPosition(const Vec3 &targetPosition, float duration = 1.0f,
                         std::function<void()> onComplete = nullptr);
 
    void MoveTo(const Vec3 &newPosition, const Vec3 &newTarget, float duration = 1.0f,
                std::function<void()> onComplete = nullptr);
 
    bool IsAnimating() const { return m_IsAnimating; }
 
    void StopAnimation();
 
    enum class EasingType
    {
        Linear,
        EaseInOut,
        EaseIn,
        EaseOut,
        EaseInOutQuad,
        EaseInOutCubic
    };
 
    void SetEasingType(EasingType type) { m_EasingType = type; }
 
private:
    float ApplyEasing(float t) const;
 
    Vec3 Lerp(const Vec3 &start, const Vec3 &end, float t) const;
 
    BaseCamera &m_Camera;
 
    // Animation state
    bool m_IsAnimating = false;
    float m_AnimationTime = 0.0f;
    float m_AnimationDuration = 1.0f;
    EasingType m_EasingType = EasingType::EaseInOut;
 
    // Animation targets
    Vec3 m_StartPosition;
    Vec3 m_StartTarget;
    Vec3 m_EndPosition;
    Vec3 m_EndTarget;
 
    // Completion callback
    std::function<void()> m_OnComplete;
};