ACF3: Fix cannibals sometimes doing nothing for a full turn
This was because hogs got confused because walking was forbidden by SetInputMask.
Now we use a proper hedgehog effect heArtillery.
AAAAaXicY3RgdGBgWcB2gIGDAcjiTgCy+A6AxVhlgFwgwcHA9ISBgYGRYb8AkLAXYGBmsGeAEKwgLphgB3GBBCPQvD8g82pA5tWAzKsBmVcDAB2iEO4=