Difference between revisions of "TsAGE/TODO"

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(Suppress Bug in scene 4025)
m (Minor cleanup of TsAGE TODOs)
 
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This is a list of things that still need to be handled properly:
{{Infobox_TODO|
*Add sound support
taskname=TsAGE Engine TODO|
**Adlib
techcontact=[[TsAGE]] Engine Team|
**Sound Blaster
subsystem=Engine|
**GUS
}}
**Midi (MT-32)


Known engine bugs:
== Game status ==
*Pathfinding bug: when trying to exit scene 5200, the game enters an infinite loop. This happens because PlayerMover::proc1() keeps rejecting the path to the exit, as it supposedly returns to the original source region.  
* Ringworld Floppy version: Completable.
*Pathfinding bug: after exiting from scene 5200 to 5100 and save the Seeker from the pit, there is an animation where Quinn and the Seeker exit the caves. However, Quinn incorrectly falls inside the trap while walking out, thus the animation where the flesheaters capture him is shown and the game enters an infinite loop of the same scenes shown over and over. This one might be a hardcoded logic bug, as the trap hotspot might have to be disabled for that cutscene
* Ringworld First wave version: Completable.
* Ringworld CD version: Completable.


It's still possible to bypass the two aforementioned bugs if the walk regions for these two scenes are forced to be ignored inside PlayerMover::setDest().
* Blue Force Floppy version: Completable.
* Blue Force First wave version: Completable.
* Blue Force CD version: Completable.
* Blue Force CD Spanish: Not supported.


Known hardcoded logic bugs:
* Return to Ringworld Demo: Completable.
*Scene 4045: The hero goes back to scene 4050 after taking the peg. (to be verified: I think he shouldn't)
* Return to Ringworld CD: Completable.
*Scene 4000: Before using The Tech when everything else is complete, the hero says something that stays on screen and corrupt everything after


Currently Playable until:
== Known Bugs ==
*Scene 5200, second time, after obtaining the stasis box
Ringworld:
* None.
 
Blue Force:
* Game speed is much slower (~50%) compared to original interpreter running under DOSBox.
* Map Cursor slow to appear and is not USE hand...
 
=== Present in the original game (Script Bugs) ===
Ringworld:
* Scene 2320: After being told to look for the Explorer I was able to construct the arms for the dolphin. I didn't even know I would need that!
* Scene 4000 (or maybe 4045): If you tell the chief to show you the Tech, Miranda will say "Quinn, it's a simple force field regulator", even if she's not in the room with you because she's stuck with Rock.
* Scene 5100: After stunning one of the flesheaters, the other one runs away. If you stun the one on the right, the other one hides on the far left of the scene. Even though you can't see it, you can examine it and touch it. The descriptions you get are the same as for the stunned flesheater. Apparently, the game doesn't make any difference between them.
* Scene 5300: If I escape this room and are recaptured (by falling into the pit again), Quinn says "Was it something I said?", etc. This happen until Quinn drinks the potion, so it looks a bit weird when it's not the first time.
* Scene 6100: If I allow the probe to get too damaged, it leads into a conversation between Quinn and Seeker. The mouse cursor is shown here (present in the original) and the cursor movement is much jerkier than usual. (This jerkiness is also present when successfully reaching the destination with the probe.)
* Scene 6100: At the end, texts are not skippable, it looks wrong
 
Blue Force:
* None
 
=== Possible Enhancements ===
 
* Currently only Adlib/Soundblaster is supported. It would be nice to support others, such as Roland or General Midi
 
* Rewrite the savegame mechanism
 
Currently the savegame code works similiar to the original, in that every object derives from a 'SavedObject' base, which is registered in a master list when objects that derive from it are instantiated. So the saving code essentially loops through the objects one by one to have each save their data in turn. The trouble with this it when loading a savegame, it relies on all the objects registered in the list to have been instantiated in the exact same order; which may not be the case if the savegame is loaded in another system, or even which an executable compiled using another compiler, since the fields of a given class are guaranteed to be created in the same order.
 
A lot of this could be resolved by replacing this with a manual hierarchnical saving of data, where the overall Globals object would explicitly call the synchronize method of all the objects within it, and they each explicitly call the method for the objects they contain, and so on. Whilst this would handle the majority of the save process, there is one remaining issue, that of pointer handling.
 
In many places in the engine there are pointers to other objects. The Sequence (Cutscene) manager can, for example, take in pointers for the characters the cutscene applies to. Currently these are handled by storing the index in the list of instantiated objects of the object the pointer points to, and then doing a lookup doing savegame restore. Because of this, it will be very difficult to get rid of the existing savegame mechanism without coming up with a good way to represent the same information. Perhaps giving any object that can be pointed to a unique Id, and having a lookup list of only those Ids. This might ensure savegame restore would work, and allow them to be portable.

Latest revision as of 12:51, 16 March 2016

TODO List
Name TsAGE Engine TODO
Technical Contact(s) TsAGE Engine Team
Subsystem Engine

Game status

  • Ringworld Floppy version: Completable.
  • Ringworld First wave version: Completable.
  • Ringworld CD version: Completable.
  • Blue Force Floppy version: Completable.
  • Blue Force First wave version: Completable.
  • Blue Force CD version: Completable.
  • Blue Force CD Spanish: Not supported.
  • Return to Ringworld Demo: Completable.
  • Return to Ringworld CD: Completable.

Known Bugs

Ringworld:

  • None.

Blue Force:

  • Game speed is much slower (~50%) compared to original interpreter running under DOSBox.
  • Map Cursor slow to appear and is not USE hand...

Present in the original game (Script Bugs)

Ringworld:

  • Scene 2320: After being told to look for the Explorer I was able to construct the arms for the dolphin. I didn't even know I would need that!
  • Scene 4000 (or maybe 4045): If you tell the chief to show you the Tech, Miranda will say "Quinn, it's a simple force field regulator", even if she's not in the room with you because she's stuck with Rock.
  • Scene 5100: After stunning one of the flesheaters, the other one runs away. If you stun the one on the right, the other one hides on the far left of the scene. Even though you can't see it, you can examine it and touch it. The descriptions you get are the same as for the stunned flesheater. Apparently, the game doesn't make any difference between them.
  • Scene 5300: If I escape this room and are recaptured (by falling into the pit again), Quinn says "Was it something I said?", etc. This happen until Quinn drinks the potion, so it looks a bit weird when it's not the first time.
  • Scene 6100: If I allow the probe to get too damaged, it leads into a conversation between Quinn and Seeker. The mouse cursor is shown here (present in the original) and the cursor movement is much jerkier than usual. (This jerkiness is also present when successfully reaching the destination with the probe.)
  • Scene 6100: At the end, texts are not skippable, it looks wrong

Blue Force:

  • None

Possible Enhancements

  • Currently only Adlib/Soundblaster is supported. It would be nice to support others, such as Roland or General Midi
  • Rewrite the savegame mechanism

Currently the savegame code works similiar to the original, in that every object derives from a 'SavedObject' base, which is registered in a master list when objects that derive from it are instantiated. So the saving code essentially loops through the objects one by one to have each save their data in turn. The trouble with this it when loading a savegame, it relies on all the objects registered in the list to have been instantiated in the exact same order; which may not be the case if the savegame is loaded in another system, or even which an executable compiled using another compiler, since the fields of a given class are guaranteed to be created in the same order.

A lot of this could be resolved by replacing this with a manual hierarchnical saving of data, where the overall Globals object would explicitly call the synchronize method of all the objects within it, and they each explicitly call the method for the objects they contain, and so on. Whilst this would handle the majority of the save process, there is one remaining issue, that of pointer handling.

In many places in the engine there are pointers to other objects. The Sequence (Cutscene) manager can, for example, take in pointers for the characters the cutscene applies to. Currently these are handled by storing the index in the list of instantiated objects of the object the pointer points to, and then doing a lookup doing savegame restore. Because of this, it will be very difficult to get rid of the existing savegame mechanism without coming up with a good way to represent the same information. Perhaps giving any object that can be pointed to a unique Id, and having a lookup list of only those Ids. This might ensure savegame restore would work, and allow them to be portable.

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