Key Rotation when building construction is selected

[k776]

Using the mouse to rotate produces unexpected results and makes wall/gate building much harder. It would be nice to have the 'q' rotate 45 degrees anti-clockwise, and the 'w' key rotate 45 degrees clockwise, when a building is selected for construction.

I'm going to attempt to write a patch in my free time, but if it hasn't been done yet, please go ahead and do this yourself. From what I understand, it should be very easy.

[wacko]

I am going to give this k776 and mark it as a minor task for now. If you can get it done by then do so but if not then we can push it.

[k776]

To implement this requires a new Hotkey system, where the actions for viewport rotate buttons Q & E can be overwritten/replaced.

[Philip]

I'd suggest using different keys (regardless of technical limitations), like PageUp/PageDown or [/] perhaps, since it doesn't seem nice to disable some of the camera movement keys when the player is trying to look for a space to put their building in.

[k776]

Adding building rotate keys

[Philip]

Thanks! Just made a few modifications:

Changed the key definitions to be SDLK_ constants. Reused placementPosition instead of targetPosition since they don't need to be separate.

var rotation_step = Math.PI / 12; // 12 clicks make a full rotation

Actually 24 clicks, since there's 2*pi radians in a circle.

[philip]

(In [8314]) # Add ",?" keys to rotate buildings during placement, based on patch from k776. Fixes #588.