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Middle-Mouse Panning Fix for Linux [A16]

EDIT: This version is deprecated. Unsubscribe from this mod and subscribe to the A17 version instead. (I lost the file needed to update this mod--hence the separate mod page for A17)

On the Ludeon forums[ludeon.com] I was able to isolate this to a bug in MouseDrag events in Linux Unity version 5.4.1f1. This is unlikely to be fixed in RimWorld until they update the version of Unity they're building against since it would involve targeting the Linux platform and the specific Unity version to work around the incorrect mouse button codes in the MouseDrag event args, but I'll keep this updated in case they implement a workaround for this.

Original Description:
In recent builds I haven't been able to use the middle mouse button to pan the camera in Linux.

All this mod does is add custom handling to pan the map while the middle mouse button is held down. To avoid potential issues, this mod will only activate itself if being run on Linux.

This will work fine with any existing game and shouldn't have any compatibility issues with any other mods.

For those interested, the source code can be found here: https://bitbucket.org/CephalopodDarius/rimworldmousepanninglinux

Note: This does not work on the worldmap--only the game map.