# definition of enemies
#
#   $E10=<lebenspunkte>
#   $E11=<rauch>
#   $E12=<minus_collp>
#   $E13=<minus_shs>
#   $E20=<sprite filename "ok" vertical>
#   $E21=<sprite filename "dead">
#   $E22=(if there: middle pos of gun) <x>,<y>
#   $E23=<if there: graphic filename for gun>
#   $E30=<luft>
#   (repeated $E40-$E43)
#     $E40=<xm shot or -1>,<ym shot or -1>
#     $E41=<art>
#     $E42=<rand>,<warte>
#     $E43=<max>
#   (repeated $E50)
#     $E50=<xm explosion>,<ym explosion>
