SCUMM/NES

Things To Do

Engine Verification

• Verify functions:
  • ScummEngine::runInputScript()
  • V2 opcodes:
    • beginOverride
    • waitForMessage
    • waitForSentence
    • waitForActor
    • assignVarWordIndirect
    • assignVarByte
    • addIndirect
    • subIndirect
    • add
    • subtract
    • isLessEqual
    • isGreaterEqual
    • isLess
    • isGreater
    • ifClassOfIs
    • startScript
    • chainScript
    • ifNotState08
    • ifState08
    • ifNotState04
    • ifState04
    • ifState02
    • ifNotState02
    • ifNotState01
    • ifState01
    • setState08 * does not appear to request redraw (as clearState08 does)
    • clearState08
    • setState04
    • clearState04
    • setState02
    • clearState02
    • setState01
    • clearState01
    • drawObject
    • pickupObject * partially checked
    • loadRoomWithEgo * unchecked
    • setBitVar * unchecked
    • getBitVar * unchecked
    • setOwnerOf * unchecked
    • delay
    • walkActorToObject * unchecked
    • putActorAtObject * unchecked
    • walkActorTo * unchecked
    • setActorElevation * different - does not multiply elevation by 2, takes it as-is
    • putActor * unchecked
    • setObjPreposition * different - does nothing at all
    • getObjPreposition
    • doSentence * partially checked
    • drawSentence * unchecked
    • cutscene * difference - also saves _currentScript and clears some click-related vars
    • endCutscene * difference - clears the _currentScript var saved in cutscene
    • setCameraAt * difference - sets camera to Panning mode, not Normal mode
    • panCameraTo * difference - no mention of camera._movingToActor
    • cursorCommand
    • getActorX
    • getActorY
    • getActorElevation * different - does not divide elevation by 2, returns it as-is
    • getActorWalkBox
    • animateActor * unchecked
    • lights * partially checked
    • setObjectName * unchecked
    • resourceRoutines * different - does nothing at all
    • restart * unchecked
    • setBoxFlags
    • verbOps * different - no case for 0xFF (verb on/off), sets fewer vars
    • roomOps * different - lacks case 2 (room color)
    • actorOps
    • actorFromPos * unchecked
    • findObject * unchecked
    • switchCostumeSet
  • V5 opcodes:
    • jumpRelative * unchecked
    • stopObjectCode * unchecked
    • breakHere * unchecked
    • setVarRange * unchecked
    • move * unchecked
    • increment * unchecked
    • decrement * unchecked
    • equalZero * unchecked
    • notEqualZero * unchecked
    • isNotEqual
    • isEqual
    • stopScript * unchecked
    • pseudoRoom * unchecked
    • loadRoom * unchecked
    • getObjectOwner * unchecked
    • printEgo * unchecked
    • print * unchecked
    • getDist * unchecked
    • getClosestObjActor * unchecked
    • getRandomNr
    • getActorMoving
    • isSoundRunning
    • isScriptRunning
    • delayVariable
    • stopSound
    • startMusic/startSound
    • walkActorToActor * unchecked
    • putActorInRoom * unchecked
    • actorFollowCamera * unchecked
    • getActorCostume
    • getActorRoom
    • getActorFacing
    • faceActor * unchecked
    • saveLoadGame
    • stopMusic * different - only stops music track

Graphics

• Flashlight shape
• Gray room palette in flashlight mode

Scripts

• Fix freeze after scrolling Maniac Manion logo
• Somehow add static MM logo and LucasArts logo (needs to be done before engine initializes)

Known Issues

• Moving the cursor in the verb/inventory area will 'select' objects in the room if they touch the top of the room (example: stairs)
• Text wrapping doesn't work for the sentence bar (it moves down 1 pixel, right in the middle of the word; needs to wrap at name/word boundaries)
• Walking and talking at the same time doesn't work - stop walking while talking and your mouth will not move, stop talking while walking and you start sliding across the room.
• Clicking in the top 16 pixels of the screen (above the subtitle bar) crashes the program.
• Walkboxes have some bugs - in some cases, you can walk through corners. This appears to be a bug with all V1-V2 games.
• After you select your characters and hit start, the first sound that gets played is 'chirping crickets' instead of 'pickup item'. This may be due to improper handling of o2_stopMusic()
• The 'maniac mansion' logo scroll during the intro gets stuck due to a camera issue (original engine expects screen to be 224 wide, but in ScummVM it's 256 wide so it can't scroll far enough).