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Flycast Dojo 0.4.15 GGPO Test 3

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@blueminder blueminder released this 06 Sep 18:31
· 1823 commits to master since this release
dojo-0.4.15-ggpo-test-3
d6474a5

GGPO Integration now supports Dreamcast & Atomiswave games!
Only digital inputs and triggers at this time. Analog inputs are being worked on.

This release includes the latest changes from the net-rollback branch of Flycast, along with customizations and preloaded savestates so that you can immediately start playing rollback netplay matches for games that are confirmed to work. This should serve as an easier way to get started with the changes found in the Flycast GGPO test builds. This will be updated as more changes are introduced upstream.

As a note, this will not integrate with Fightcade just yet. This first update is to facilitate testing in the standalone client for now. Compatibility with Fightcade, as well as firewall hole punching through the use of Match Codes will be in future updates.

To get started with GGPO support:

  1. Load your BIOS files (naomi.zip, awbios.zip), and your games in the included ROMs directory. Valid romset information can be found here.
  2. Map your controls by going to Settings -> Controls, and clicking Map by your input method of choice. Set Port to A. Be sure to set both Dreamcast Controls and Arcade Controls to account for all games.

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  1. Head to the Dojo tab. Under Netplay Method, select GGPO (experimental).

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  1. To host a game, select HOST on the drop down menu on the right. To join a game, select JOIN. Then select your game from the list.

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  1. Enter your opponent's IP address and select the frame delay, if applicable. Increasing delay is recommended for ping rates above 100ms. Both you and your opponent should have the same frame delay set.

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From there, a game session should start once a connection is established.

If your game of choice is unsupported by GGPO, you can fall back to Dojo's delay netcode by selecting Delay under Netplay Method.

Flycast GGPO support is still experimental. For best results, sharing a common savestate with your friends is recommended.

Included Savestates

NAOMI

Akatsuki Blitzkampf Ausf Achse (ausfache.state.net)
Capcom vs. SNK (capsnk.state.net)
Capcom vs. SNK 2 (cvs2.state.net)
Dead or Alive 2 Millennium (doa2m.state.net)
Marvel vs. Capcom 2 (mvsc2.state.net)
Power Stone (pstone.state.net)
Project Justice (pjustic.state.net)
Street Fighter Zero 3 Upper (sfz3ugd.state.net)
Toy Fight (toyfight.state.net)

Atomiswave

Hokuto no Ken (fotns.state.net)
The King of Fighters XI (kofxi.state.net)
The Rumble Fish 2 (rumblef2.state.net)
Samurai Shodown VI (samsptk.state.net)

Dreamcast

KenJu - Atomiswave to Dreamcast conversion (KenJu.state.net)
Virtua Fighter 3tb (USA) (Virtua Fighter 3tb (USA).state.net)

If a savestate isn't available, you should be able to create one by starting an offline game and getting it to a starting state you would like (character select screen, unlocked characters, free play, etc). From there, open the Menu (TAB on the Keyboard by default) and click Save State. Head to the data/ folder, and add .net to distinguish it from offline savestates and prevent future overwriting. You can then share this with your opponent to start at the same place.

Flycast Dojo also comes with a collection of arcade EEPROMs and select VMU saves with established settings. These should serve as useful defaults for games that already exist when you create a new state.

For more information, check out Shiburizu's Flycast-GGPO guide on the Mizuumi Wiki.

Happy Testing!

0.4.15 GGPO Test 3 Release Notes

  • Fix Control Mapping loading on game boot
  • Restrict Offline Delay settings to Training Mode
  • Add Atomiswave savestates

Upstream Flycast net-rollback branch changes

  • Fix Atomiswave/Dreamcast issues (Protect all RAM, not just bottom half)
  • Dreamcast: Transmit Right Trigger and Left Trigger as Digital Inputs

0.4.15 GGPO Test 2 Release Notes

  • Fix IP assignment for Host & Guest
  • Fix & Move Delay Selection to connect screen

0.4.15 GGPO Test 1 Release Notes

  • Flycast Dojo GUI integration for GGPO functions
  • Automatic loading of state.net savestates when GGPO is enabled
  • Temporary Disabling of Match Codes by default. Still available for Delay.
  • Disable Savestate deletion in Ignore Netplay Savestates option
  • Set Delay Frame Swapping to false for optimal netplay settings
  • Remove "Press Start" instruction on GGPO network prompt, due to lack of start button

Upstream Flycast net-rollback branch changes

  • GGPO Support
  • Input polling now on rendering thread
  • Add Frame Delay to Settings
  • Static RTC when GGPO is enabled (for games without savestates)
  • UI: Use input from all keyboards
  • Inputs: NAOMI buttons 5/6 & 7/8 shouldn't be mutually exclusive
  • GGPO: Detect frame rate and use it to pause when ahead
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