set x = (2.5 * Cos(angle * bj_DEGTORAD))
set y = (2.5 * Sin(angle * bj_DEGTORAD))
if not IsTerrainPathable( x,y, PATHING_TYPE_FLYABILITY) then
	call SetUnitPosition(u, x1+x, y1+y)
endif

set x = (2.5 * Cos(angle * bj_DEGTORAD))
set y = (2.5 * Sin(angle * bj_DEGTORAD))
if IsTerrainPathable( x,y, PATHING_TYPE_FLYABILITY) then
	call SetUnitPosition(u, x1+x, y1+y)
endif

if not IsTerrainPathable(x,y, PATHING_TYPE_***) then
    //местность проходима
else
    //непроходима
endif