gamnit :: EulerCamera :: camera_pan_mask
Set to 0 to deactivate the scrolling feature.
# Scroll trigger button mask from SDL2 (1: left, 2: middle, 4: right)
#
# Set to 0 to deactivate the scrolling feature.
var camera_pan_mask = 2 is writable
lib/gamnit/camera_control_linux.nit:26,2--29,36