//////////

//

//  File:       VRHash.h

//

//  Contains:   Header file for hash table management.

//

//  Written by: Tim Monroe

//

//  Copyright:  © 1998 by Apple Computer, Inc., all rights reserved.

//

//  Change History (most recent first):

//

//     <1>      11/28/98        rtm     first file (Happy Thanksgiving!)

//     

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#pragma once

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//

// header files

//     

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#include "ComApplication.h"

#include "VRScript.h"

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//

// constants

//     

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// general parameters for our hash table

#define kNumEntriesInTable      127         // the number of bucket pointers in the hash table

// command codes for each supported command word

// currently there are 122 command codes

enum {

    kInvalidCommand = (UInt32)0,

    kSetVerboseState,

    kOpenQTVRMovieFile,

    kReplaceMainMovie,

    kSetCurrentDirectory,

    kSetBarState,

    kSetButtonState,

    kSetResizeState,

    kSetWindowSize,

    kSetMaxWindowSize,

    kReplaceCursor,

    kSetHotSpotIDCursors,

    kSetHotSpotTypeCursors,

    kGoToNodeID,

    kShowDefaultView,

    kOpenResourceFile,

    kSetCorrection,

    kSetQuality,

    kSetSwingSpeed,

    kSetSwingDirection, 

    kSetSwingState,

    kSetPanAngle,

    kSetTiltAngle,

    kSetPanTiltZoom,

    kSetFieldOfView,

    kSetViewCenter,

    kSetPanLimits,

    kSetTiltLimits,

    kSetZoomLimits,

    kSetHotSpotState,   

    kSetTranslateState,

    kSetClickRadius,

    kSetClickTimeout,

    kSetPanTiltSpeed,

    kSetZoomSpeed,

    kSetMouseScale,

    kSetFrameRate,

    kSetViewRate,

    kSetViewTime,

    kSetViewState,  

    kSetAnimationState,

    kSetControlState,

    kSetFrameAnimState,

    kSetViewAnimState,

    kSetQTVRVisState,

    kSetCachePrefs,

    kSetMovieVolume,

    kSetTrackVolume,

    kSetSoundVolume,

    kSetSoundBalance,   

    kPlaySceneSound,

    kPlaySceneQTMidi,

    kPlayNodeQTMidi,

    kPlayNodeSound,

    kPlayNode3DSound,

    kHotSpotQTMidi,

    kHotSpotSound,

    kHotSpot3DSound,

    kHotSpotMovie,

    kTriggerHotSpot,    

    kPlayQTMidi,

    kPlaySndResource,

    kPlaySoundFile,

    kPlay3DSndResource,

    kPlay3DSndResourceAngle,

    kShowPicture,

    kShowNodePicture,

    kAtTime,

    kAtAppLaunch,

    kAtAppQuit, 

    kAtMouseOverHSID,

    kAtMouseOverHSType,

    kAtClickHSID,

    kAtClickHSType,

    kAtClickCustomButton,

    kAtClickSprite,

    kAtTriggerWiredAction,

    kAtNodeEntry,

    kAtNodeExit,

    kAtPanAngle,

    kAtTiltAngle,   

    kAtZoomAngle,

    kDoBoth,

    kDoNothing,

    kPlayMovie,

    kPlayTransMovie,

    kPlayTransEffect,

    kMoveScreen,

    kBeep,

    kProcessScript,

    kCreateBox, 

    kCreateCone,

    kCreateCylinder,

    kCreateEllipsoid,

    kCreateTorus,

    kCreateRectangle,

    kOpen3DMFFile,

    kSet3DObjLocation,

    kSet3DObjColor,

    kSet3DObjTransp,

    kSet3DObjInterp,    

    kSet3DObjBackface,

    kSet3DObjFill,

    kSet3DObjRotation,

    kSet3DObjRotState,

    kSet3DObjVisState,

    kSet3DObjTexture,

    kDestroy3DObject,

    kSet3DSndLocation,

    kSetVariable,

    kIf,

    kSetSpriteVisState,

    kSetSpriteLayer,

    kSetSpriteGraphicsMode,

    kSetSpriteImageIndex,

    kSetSpriteMatrix,

    kSetSpriteLocation,

    kSetTrackState,

    kSetTrackLayer,

    kSetMovieTime,

    kSetMovieRate,  

    kSetMovieTimeScale

};

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//

// data types

//     

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// a "bucket";

// our hash table is an array of bucket pointers

typedef struct VRScriptHash {

    UInt32                      fCommandCode;       // the command code for the command word

    char                        *fCommandWord;      // the command word

    struct VRScriptHash         *fNextEntry;        // the next entry in the list

} VRScriptHash, *VRScriptHashPtr;

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//

// function prototypes

//     

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void                                VRHash_Init (void);

void                                VRHash_Stop (void);

UInt32                              VRHash_HashCommandWord (char *theCommandWord);

void                                VRHash_PutCommandIntoTable (char *theCommandWord, UInt32 theCommandCode);

UInt32                              VRHash_GetCommandCode (char *theCommandWord);