public int mv_cost(CLoc t_loc, string level, CUnit aiunit)
{
if (t_loc == null)
{
return(int.MaxValue);
}
string t = map_.getMapLocation(t_loc.x, t_loc.y);
CUnit[] hosts = getHostsAtLoc(t_loc);
//No One in location
bool nohost = true;
if (hosts != null)
{
switch (level)
{
case CUnitConstants.LVL_ORB:
nohost = (hosts[CUnitConstants.ORB_LEVEL_INDEX] == null);
break;
case CUnitConstants.LVL_SUB:
nohost = (hosts[CUnitConstants.SUB_LEVEL_INDEX] == null);
break;
default: //stack
nohost = ((hosts[CUnitConstants.STACK_GROUND_INDEX] == null) &&
(hosts[CUnitConstants.STACK_AIR_INDEX] == null));
break;
}
}
if (nohost)
{
if (aiunit.entry_.canMove(t))
{
return(aiunit.entry_.getMove(t));
}
else
{
return(EmpireCC.IMPOSSIBLE);
}
}
//we have a host
//some of the cases here are simplified and could fail on execution
CUnit hu = null;
switch (level)
{
case CUnitConstants.LVL_ORB:
{
hu = hosts[CUnitConstants.ORB_LEVEL_INDEX];
break;
}
case CUnitConstants.LVL_SUB:
{
hu = hosts[CUnitConstants.SUB_LEVEL_INDEX];
break;
}
default: //stack
{
hu = (hosts[CUnitConstants.STACK_AIR_INDEX] != null)
? hosts[CUnitConstants.STACK_AIR_INDEX]
: hosts[CUnitConstants.STACK_GROUND_INDEX];
break;
}
}
//friendly
if (hu.owner_ == position_)
{
if (hu.entry_.canTransport(aiunit.utype_))
{
return(1);
}
return(EmpireCC.IMPOSSIBLE);
}
if (aiunit.entry_.canMove(t))
{
if (hu.entry_.isCity())
{
return((aiunit.entry_.cityCombat() != CUnitConstants.CC_NONE) ? 1:EmpireCC.IMPOSSIBLE);
}
return(aiunit.entry_.getMove(t));
}
else if ((t == EmpireCC.CT_SEA || t == EmpireCC.CT_SHALLOWSEA) && aiunit.entry_.canSeaBombardAttack())
{
return(1);
}
return(EmpireCC.IMPOSSIBLE);
}