MotionMatcher.h

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#pragma once
 
#include "animation/AnimPose.h"
 
#include <vector>
 
namespace eve::animation {
 
class AnimSkeleton;
class MotionDatabase;
 
class MotionMatcher {
public:
    MotionMatcher(AnimSkeleton *skeleton, MotionDatabase *database);
    ~MotionMatcher() = default;
 
    MotionMatcher(const MotionMatcher &)            = delete;
    MotionMatcher &operator=(const MotionMatcher &) = delete;
 
    AnimSkeleton    *getSkeleton() const { return skeleton_; }
    MotionDatabase  *getDatabase() const { return database_; }
 
    void setDesiredVelocity(float x, float z);
    float getDesiredVelocityX() const { return desiredVelX_; }
    float getDesiredVelocityZ() const { return desiredVelZ_; }
 
    void  setDesiredYaw(float yaw);
    float getDesiredYaw() const { return desiredYaw_; }
 
    void  setSearchInterval(float seconds);
    float getSearchInterval() const { return searchInterval_; }
    void  setBlendTime(float seconds);
    float getBlendTime() const { return blendTime_; }
    void  setTrajectoryWeight(float w);
    float getTrajectoryWeight() const { return trajWeight_; }
    void  setPoseWeight(float w);
    float getPoseWeight() const { return poseWeight_; }
    void  setVelocityWeight(float w);
    float getVelocityWeight() const { return velWeight_; }
 
    void setIgnoreRadius(int frames);
    int  getIgnoreRadius() const { return ignoreRadius_; }
 
    int   getMatchedFrame() const { return matchedFrame_; }
    int   getMatchedClipIndex() const;
    float getMatchedTime() const { return matchedTime_; }
    float getLastSearchCost() const { return lastCost_; }
 
    AnimPose *getPose();
 
    void search();
 
    void update(float dt);
 
private:
    void buildQuery(std::vector<float> &query) const;
    float cost(const std::vector<float> &query, const std::vector<float> &cand) const;
    void sampleMatched(AnimPose *out) const;
 
    AnimSkeleton   *skeleton_ = nullptr;
    MotionDatabase *database_ = nullptr;
    AnimPose        pose_;
    AnimPose        fromPose_;
    AnimPose        matchedPose_;
 
    float desiredVelX_ = 0.f;
    float desiredVelZ_ = 0.f;
    float desiredYaw_  = 0.f;
 
    float searchInterval_ = 0.1f;
    float searchTimer_    = 0.f;
    float blendTime_      = 0.15f;
    float blendElapsed_   = 0.f;
    bool  blending_       = false;
 
    float trajWeight_ = 1.f;
    float poseWeight_ = 1.f;
    float velWeight_  = 1.f;
    int   ignoreRadius_ = 2;
 
    int   matchedFrame_ = -1;
    float matchedTime_  = 0.f;
    float lastCost_     = 0.f;
    bool  playing_      = false;
};
 
}  // namespace eve::animation