Make it possible to enter moves by dragging

Add new setting (default true) to allow input of moves by dragging a
piece from its source square to the target square.

This setting partially overlaps with scroll gestures on the chess
board, so when this setting is enabled, scroll gestures will only
happen if the starting square is empty or contains a piece of the
color not to make the next move.
This commit is contained in:
Peter Osterlund
2020-02-02 23:22:40 +01:00
parent 514d81b8fe
commit a595c8922b
9 changed files with 145 additions and 22 deletions

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