alias "checkfwd" ""
alias "checkback" ""
alias "checkleft" ""
alias "checkright" ""

alias "+mfwd" "-back; +forward; alias checkfwd +forward"
alias "+mback" "-forward; +back; alias checkback +back"
alias "+mleft" "-right; +left; alias checkleft +left"
alias "+mright" "-left; +right; alias checkright +right"

alias "-mfwd" "-forward; -back; checkback; alias checkfwd"
alias "-mback" "-back; -forward; checkfwd; alias checkback"
alias "-mleft" "-left; -right; checkright; alias checkleft"
alias "-mright" "-right; -left; checkleft; alias checkright"

bind "w" "+mfwd"
bind "s" "+mback"
bind "a" "+mleft"
bind "d" "+mright"