TimelineInstance.h

Go to the documentation of this file.

#pragma once
 
#include "EngineTypes.h"
#include "Maths.h"
 
#include <vector>
#include <unordered_map>
 
class Node;
class World;
class TimelineTrack;
 
struct TrackInstanceData
{
    Node* mResolvedNode = nullptr;
    bool mBindingResolved = false;
 
    // Pre-play state snapshots for editor preview undo
    glm::vec3 mPrePlayPosition = {};
    glm::quat mPrePlayRotation = glm::quat(1.0f, 0.0f, 0.0f, 0.0f);
    glm::vec3 mPrePlayScale = glm::vec3(1.0f);
    bool mPrePlayActive = true;
    bool mPrePlayVisible = true;
    bool mStateSnapshotted = false;
 
    // Track-specific runtime state
    bool mClipPlaying = false;
    int32_t mLastEvaluatedClipIndex = -1;
};
 
class TimelineInstance
{
public:
 
    TimelineInstance();
    ~TimelineInstance();
 
    void SetTrackCount(uint32_t count);
    uint32_t GetTrackCount() const { return (uint32_t)mTrackData.size(); }
 
    TrackInstanceData& GetTrackData(uint32_t index);
 
    void ResolveBindings(World* world, const std::vector<TimelineTrack*>& tracks);
 
    void CapturePrePlayState(const std::vector<TimelineTrack*>& tracks);
    void RestorePrePlayState(const std::vector<TimelineTrack*>& tracks);
 
    void ResetAll();
 
private:
 
    std::vector<TrackInstanceData> mTrackData;
};