$Id$

Cross-reference for functions and variables for the original source code and
the ScummVM implementation.

Watcom C++ arguments order:

  eax, edx, ebx, ecx, stack

Sceneres.h
==========
 LOADREQ_FIGURE
 LOADREQ_OBJECT
 LOADREQ_BACKGROUND        SAGA_BG_IMAGE
 LOADREQ_ZBUF              SAGA_BG_MASK
 LOADREQ_SCENE_SCRIPT
 LOADREQ_STRINGS           SAGA_OBJECT_NAME_LIST
 LOADREQ_HITZONES          SAGA_OBJECT_MAP
 LOADREQ_STEPZONES         SAGA_ACTION_MAP
 LOADREQ_TILE_IMAGES       SAGA_ISO_TILESET
 LOADREQ_TILE_MAP          SAGA_ISO_METAMAP
 LOADREQ_TILE_PLATFORMS    SAGA_ISO_METATILESET
 LOADREQ_TILE_METATILES
 LOADREQ_ENTRY             SAGA_ENTRY
 LOADREQ_FRAMELIST

 LOADREQ_ANIM_0            SAGA_ANIM_1
 LOADREQ_ANIM_1            SAGA_ANIM_2
 LOADREQ_ANIM_2            SAGA_ANIM_3
 LOADREQ_ANIM_3            SAGA_ANIM_4
 LOADREQ_ANIM_4            SAGA_ANIM_5
 LOADREQ_ANIM_5            SAGA_ANIM_6
 LOADREQ_ANIM_6            SAGA_ANIM_7
 LOADREQ_ANIM_7

 LOADREQ_TILE_MULTI
 LOADREQ_CYCLES            SAGA_PAL_ANIM
 LOADREQ_FACES             SAGA_FACES
 LOADREQ_PALETTE

 hitZone                   _objectMap
 stepZone                  _actionMap

 HZONEF_EXIT               OBJECT_EXIT (in Verb.c), ACTION_EXIT (in Actor.c)
 HZONEF_ENABLED            OBJECT_ENABLED (in Verb.c), ACTION_ENABLED (in Actor.c)
 HZONEF_NOWALK             OBJECT_NOWALK
 HZONEF_PROJECT            OBJECT_PROJECT
 HZONEF_AUTOWALK           ACTION_AUTOWALK
 HZONEF_TERMINUS           ACTION_TERMINUS

 FrameRange.startFrame     ACTORACTIONITEM.frame_index
 FrameRange.frameCount     ACTORACTIONITEM.frame_count

 FrameSequence.right       ACTORACTION.dir[0]
 FrameSequence.left        ACTORACTION.dir[1]
 FrameSequence.back        ACTORACTION.dir[2]
 FrameSequence.forward     ACTORACTION.dir[3]

Scene.c
=======
 ResToImage()              _vm->decodeBGImage()
 resInfo->sceneFlags       _desc.flags
 resInfo->loadList         _desc.resListRN
 resInfo->horizon          _desc.endSlope
 resInfo->nearFigureLimit  _desc.beginSlope
 resInfo->scriptModule     _desc.scriptModuleNumber
 resInfo->entryScript      _desc.sceneScriptEntrypointNumber
 resInfo->preScript        _desc.startScriptEntrypointNumber
 resInfo->backgroundMusic  _desc.musicRN
 thisScene->ID             currentSceneNumber()

Interp.c
========
 dispatchThreads()         executeThreads()
 runThread()               SThreadCompleteThread()
 moduleList                _scriptLUT
 ModuleEntry->codeID       _scriptLUT->script_rn
 ModuleEntry->strID        _scriptLUT->diag_list_rn
 ModuleEntry->vtableID     _scriptLUT->voice_lut_rn
 threadBase.theAction      threadVars[kVarAction]
 threadBase.theObject      threadVars[kVarObject]
 threadBase.withObject     threadVars[kVarWithObject]
 threadBase.theActor       threadVars[kVarActor]

Actor.h
=======
 GOF_PROTAGONIST           kProtagonist
 GOF_FOLLOWER              kFollower
 GOF_CYCLE                 kCycle
 GOF_FASTER                kFaster
 GOF_FASTEST               kFastest
 GOF_EXTENDED              kExtended

Actor.c
=======
 abortAllSpeeches()        abortAllSpeeches()

Main.c
======
 sceneIndexTable           _scene->getSceneLUT()

Main.h
======
BRIGHT_WHITE               kITEColorBrightWhite
WHITE_02                   kITEColorWhite
GREY_0A                    kITEColorGrey
DK_GREY_0B                 kITEColorDarkGrey
PITCH_BLACK                kITEColorBlack
RED_65                     kITEColorRed
BLUE_93                    kITEColorBlue
GREEB_BA                   kITEColorGreen

Note that ScummVM's kITEColorLightGrey does not have any corresponding
constant in the original SAGA engine. We use it for the ITE mouse cursor. See
PtrData[] in Main.c and setCursor() in gfx.cpp

Tile.h
======
 isoTile.height            ISOTILE_ENTRY.tile_h
 isoTile.attributes        ISOTILE_ENTRY.mask_rule
 isoTile.offset            ISOTILE_ENTRY.tile_offset
 isoTile.terrain_mask      ISOTILE_ENTRY.terrain_mask
 isoTile.fgd_bgd_attr      ISOTILE_ENTRY.mask

 tilePlatform.metaTile     ISO_METATILE_ENTRY.mtile_n
 tilePlatform.height       ISO_METATILE_ENTRY.height
 tilePlatform.highestPixel ISO_METATILE_ENTRY.highest_pixel
 tilePlatform.vBits        ISO_METATILE_ENTRY.v_bits
 tilePlatform.uBits        ISO_METATILE_ENTRY.u_bits

Resource.h
==========
 PicHeader.width           IMAGE_HEADER.width
 PicHeader.height          IMAGE_HEADER.height


Process.c
=========
 mainPanelMode             Interface::_inMainMode