Difference between revisions of "Dreamcast"
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Revision as of 18:58, 18 February 2011
 Dreamcast Port
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| Latest Released Version | 2.8.1 |
| Supported Audio Options | MP3, Uncompressed |
| Additional Webpage(s) | None |
| Maintainer(s) | Zeldin |
| Packager(s) | Zeldin |
| Forum | Port Forum |
| Status | Maintained |
| First Official Version | 0.3.0b |
About
ScummVM was also ported to the Dreamcast platform. The Dreamcast port uses it's own custom Graphical User Interface, which automatically scans the disc for games, and adds the games to the list through ScummVM's built-in autodetection. This usually works well, but sometimes games will show up on the list twice, incorrect games will show up with the correct game (especially true with the early V1 and V2 SCUMM games), and quite rarely the game will not show up on the list at all. ScummVM for the Dreamcast supports disc swapping from the GUI, and will rescan once a new disc is inserted and repopulate the gameslist. There is currently no way to manually add games to the gameslist in ScummVM for Dreamcast.
The mouse cursor can be controlled with the standard Dreamcast controller. The D-pad supplies slow cursor movement, and the analog stick provides faster cursor movement. The A button acts as the right mouse button, and the B button acts as the left mouse button. There is a virtual keyboard that can be brought up by pressing the left trigger button, that will emulate keyboard input. The Dreamcast mouse and keyboard peripherals are also supported. The Visual Memory Unit is supported for saving and loading savegames. Autosave is enabled on the Dreamcast, so each game will use some memory blocks (between 2 and 13) for the autosave in save slot 0, as well as save blocks for any user specified save game. When a game is saved, the VMU beeps, and a prompt is displayed on the screen letting you know that the game has been saved (this occurs with autosaves as well).
The Dreamcast has no external storage medium, and only has 16MB of RAM. As such, the Dreamcast port of ScummVM does not support The Curse of Monkey Island, nor the Dig. The resources required for these games are too great for the Dreamcast to handle. Full Throttle is not completable. Every other game supported by ScummVM should be completable with the Dreamcast port.
Controls for ScummVM on the Dreamcast
| Game Controller Mapping: | ||
| Button | Action | Notes |
|---|---|---|
| Joystick | Move Pointer | |
| Directional pad | Move Pointer (slowly) | Also controls the on-screen keyboard |
| A | Left Click | |
| B | Right Click | |
| Y | Space | Pause |
| Start | F5 | Load and save |
| Left trigger | Bring up/remove the on-screen keyboard | |
| X | 5 | For boxing in Indy 3 |
| D-Pad + X | 1, 2, 3, 4, 6, 7, 8, 9 | Likewise |
Notes on CD mastering
Some games (e.g. SPY Fox 1: Dry Cereal) use filenames which are incompatible with the ISO 9660 filesystem standard. Because the Dreamcast port does not support filename extensions like RockRidge or Joliet, the CD mastering software needs to be instructed not to mangle the filenames to comply to ISO 9660, or the engine will not be able to open the files. In the case of mkisofs, this can be achieved by using the -relaxed-filenames option to allow any ASCII character in filenames, and -l to allow filenames of up to 31 characters in length. For other authoring software, please consult your user manual.
As of 1.2.1, the combined size of all engine plugins is larger than the available memory. Thus, a disc including all plugins will not work correctly. Only include the plugins for the engines needed when mastering a CD.