2a681d3791
When using the internal AbstractCellForLocalCell method to check if a local cell is reachable, this should return null when the cell is unreachable. If multiple abstract cells were required for that grid, this worked as intended. Only reachable cells are stored in the localCellToAbstractCell mapping. For a grid that required only a single abstract cell, which is the common case, we optimize this to store only the single abstract cell rather than the whole mapping for potentially 100 cells in that grid. However this makes no distinction between the reachable and unreachable cells, so when we check later we get incorrect results. If a cell is unreachable but belongs to the same grid as a single group of reachable cells then we incorrectly report it as reachable. The easiest way to see this incorrect behaviour is when the PathExists is called and can sometimes indicate a path exists when it does not. To fix this, we now ensure we perform a check to see if the cell is reachable in this single layer case, this allows us to retain the optimization where we don't need to store the whole mapping, but allows us to correctly indicate when cells are unreachable.
OpenRA
A Libre/Free Real Time Strategy game engine supporting early Westwood classics.
- Website: https://www.openra.net
- Chat: #openra on Libera (web) or Discord
- Repository: https://github.com/OpenRA/OpenRA
Please read the FAQ in our Wiki and report problems at https://github.com/OpenRA/OpenRA/issues.
Join the Forum for discussion.
Play
Distributed mods include a reimagining of
- Command & Conquer: Red Alert
- Command & Conquer: Tiberian Dawn
- Dune 2000
EA has not endorsed and does not support this product.
Check our Playing the Game Guide to win multiplayer matches.
Contribute
- Please read INSTALL.md and Compiling on how to set up an OpenRA development environment.
- See Hacking for a (now very outdated) overview of the engine.
- Read and follow our Code of Conduct.
- To get your patches merged, please adhere to the Contributing guidelines.
Mapping
- We offer a Mapping Tutorial as you can change gameplay drastically with custom rules.
- For scripted mission have a look at the Lua API.
- If you want to share your maps with the community, upload them at the OpenRA Resource Center.
Modding
- Download a copy of the OpenRA Mod SDK to start your own mod.
- Check the Modding Guide to create your own classic RTS.
- There exists an auto-generated Trait documentation to get started with yaml files.
- Some hints on how to create new OpenRA compatible Pixelart.
- Upload total conversions at our Mod DB profile.
Support
- Sponsor a mirror server if you have some bandwidth to spare.
- You can immediately set up a Dedicated Game Server.
License
Copyright 2007-2022 The OpenRA Developers (see AUTHORS) This file is part of OpenRA, which is free software. It is made available to you under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. For more information, see COPYING.