//
// CanMoveToCell
//
// Calls above method, but first gets the movement balance data
//
Bool CanMoveToCell(U8 tractionType, TerrainData::Cell &cell)
{
// Get the balance info
MoveTable::BalanceData &d = MoveTable::GetBalance(cell.surface, tractionType);
// And call the above method
return (CanMoveToCell(d, cell));
}
//
// CanMoveToCell
//
// Calls above method, but first checks that the position is on the map
//
Bool CanMoveToCell(U8 tractionType, U32 x, U32 z)
{
return
(
WorldCtrl::CellOnMap(x, z) &&
CanMoveToCell(tractionType, TerrainData::GetCell(x, z))
);
}
//
// RequestPath
//
// Request a new path be found. Returns FALSE if request is invalid.
//
Finder::RequestResult Finder::RequestPath
(
U32 sx, U32 sz, U32 dx, U32 dz, U8 traction, UnitObj *unit,
SearchType type, U32 flags, PointList *blockList
)
{
// Forget any current path
ForgetPath();
// Is destination on the map
if (!WorldCtrl::CellOnMap(sx, sz) || !WorldCtrl::CellOnMap(dx, dz))
{
LOG_DIAG(("Request position is not on the map (%u, %u)->(%u,%u)", sx, sz, dx, dz));
return (RR_OFFMAP);
}
// Filter out requests to move to the same cell
if (sx == dx && sz == dz)
{
return (RR_SAMECELL);
}
// Can this traction type move to this cell
if (!CanMoveToCell(traction, dx, dz))
{
U32 xNew, zNew;
// Find the closest location we can move to
if (FindClosestCell(traction, dx, dz, xNew, zNew, 15))
{
// Use the new location
dx = xNew;
dz = zNew;
}
else
// AStar will fail, so jump straight to trace
if (type == ST_ASTAR)
{
type = ST_TRACE;
}
}
// Create a new path
path = new Path(sx, sz, dx, dz, traction, unit, type, flags, blockList);
// Add to the system
AddPath(path);
// Success
return (RR_SUBMITTED);
}
