//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#ifndef ANIMATION_H
#define ANIMATION_H

#define ACTIVITY_NOT_AVAILABLE -1

struct animevent_t;
struct studiohdr_t;
class CStudioHdr;
struct mstudioseqdesc_t;

int ExtractBbox(CStudioHdr *pstudiohdr, int sequence, Vector &mins,
                Vector &maxs);

void IndexModelSequences(CStudioHdr *pstudiohdr);
void ResetActivityIndexes(CStudioHdr *pstudiohdr);
void VerifySequenceIndex(CStudioHdr *pstudiohdr);
int SelectWeightedSequence(CStudioHdr *pstudiohdr, int activity,
                           int curSequence = -1);
int SelectHeaviestSequence(CStudioHdr *pstudiohdr, int activity);
void SetEventIndexForSequence(mstudioseqdesc_t &seqdesc);
void BuildAllAnimationEventIndexes(CStudioHdr *pstudiohdr);
void ResetEventIndexes(CStudioHdr *pstudiohdr);

void GetEyePosition(CStudioHdr *pstudiohdr, Vector &vecEyePosition);

int LookupActivity(CStudioHdr *pstudiohdr, const char *label);
int LookupSequence(CStudioHdr *pstudiohdr, const char *label);

#define NOMOTION 99999
void GetSequenceLinearMotion(CStudioHdr *pstudiohdr, int iSequence,
                             const float poseParameter[], Vector *pVec);

const char *GetSequenceName(CStudioHdr *pstudiohdr, int sequence);
const char *GetSequenceActivityName(CStudioHdr *pstudiohdr, int iSequence);

int GetSequenceFlags(CStudioHdr *pstudiohdr, int sequence);
int GetAnimationEvent(CStudioHdr *pstudiohdr, int sequence,
                      animevent_t *pNPCEvent, float flStart, float flEnd,
                      int index);
bool HasAnimationEventOfType(CStudioHdr *pstudiohdr, int sequence, int type);

int FindTransitionSequence(CStudioHdr *pstudiohdr, int iCurrentSequence,
                           int iGoalSequence, int *piDir);
bool GotoSequence(CStudioHdr *pstudiohdr, int iCurrentSequence,
                  float flCurrentCycle, float flCurrentRate, int iGoalSequence,
                  int &nNextSequence, float &flNextCycle, int &iNextDir);

void SetBodygroup(CStudioHdr *pstudiohdr, int &body, int iGroup, int iValue);
int GetBodygroup(CStudioHdr *pstudiohdr, int body, int iGroup);

const char *GetBodygroupName(CStudioHdr *pstudiohdr, int iGroup);
int FindBodygroupByName(CStudioHdr *pstudiohdr, const char *name);
int GetBodygroupCount(CStudioHdr *pstudiohdr, int iGroup);
int GetNumBodyGroups(CStudioHdr *pstudiohdr);

int GetSequenceActivity(CStudioHdr *pstudiohdr, int sequence,
                        int *pweight = NULL);

void GetAttachmentLocalSpace(CStudioHdr *pstudiohdr, int attachIndex,
                             matrix3x4_t &pLocalToWorld);

float SetBlending(CStudioHdr *pstudiohdr, int sequence, int *pblendings,
                  int iBlender, float flValue);

int FindHitboxSetByName(CStudioHdr *pstudiohdr, const char *name);
const char *GetHitboxSetName(CStudioHdr *pstudiohdr, int setnumber);
int GetHitboxSetCount(CStudioHdr *pstudiohdr);

#endif  // ANIMATION_H