/// <summary>
/// Returns a connectivity bitmask that contains all relevant bits for the specified
/// subtile quadrant of an AutoTile.
/// </summary>
/// <param name="quadrant"></param>
public TileConnection GetSubTileMask(TileQuadrant quadrant)
{
switch (quadrant)
{
case TileQuadrant.TopLeft: return(TileConnection.Top | TileConnection.TopLeft | TileConnection.Left);
case TileQuadrant.TopRight: return(TileConnection.Top | TileConnection.TopRight | TileConnection.Right);
case TileQuadrant.BottomRight: return(TileConnection.Bottom | TileConnection.BottomRight | TileConnection.Right);
case TileQuadrant.BottomLeft: return(TileConnection.Bottom | TileConnection.BottomLeft | TileConnection.Left);
default: return(TileConnection.None);
}
}
/// <summary>
/// Finds an existing base tile where a certain sub-tile matches with the specified connectivity state.
/// Returns <see cref="TileConnection.None"/> if no match was found in the existing set.
/// </summary>
/// <param name="quadrant"></param>
/// <param name="targetConnectivity"></param>
/// <param name="isStateAvailable"></param>
private static TileConnection FindGeneratedAutoTileBase(TileQuadrant quadrant, TileConnection targetConnectivity, bool[] isStateAvailable)
{
TileConnection mask = AutoTileFallbackMap.GetSubTileMask(quadrant);
TileConnection targetBits = targetConnectivity & mask;
IReadOnlyList <TileConnection> baseTiles = AutoTileFallbackMap.BaseConnectivityTiles;
TileConnection bestMatch = TileConnection.None;
int bestMatchNeighbourCount = 0;
for (int i = 0; i < baseTiles.Count; i++)
{
// Skip tiles that are not available in the tileset
TileConnection connectivity = baseTiles[i];
if (!isStateAvailable[(int)connectivity])
{
continue;
}
// Skip tiles that do not match in the required bits
TileConnection bits = connectivity & mask;
if (bits != targetBits)
{
continue;
}
// Special case: Skip the entirely unconnected tile, since this one is often
// different from any partially connected tiles. Note if this should change:
// It's also currently conflicting with the "no match found" return value.
if (connectivity == TileConnection.None)
{
continue;
}
// Prefer the most connected match we can find, since less connected tiles
// tend to be more specialized in their visual appearance. Only consider
// connectivity that we also find in the target tile to avoid under-specializing.
TileConnection sharedConnectivity = connectivity & targetConnectivity;
int neighbourCount = GetConnectedNeighbours(sharedConnectivity);
if (neighbourCount > bestMatchNeighbourCount)
{
bestMatchNeighbourCount = neighbourCount;
bestMatch = connectivity;
}
}
return(bestMatch);
}
//
// Input Handlers
//
/// <summary>
/// Handles a click with the primary mouse button.
/// </summary>
/// <param name="position">The position that was returned by a raycast.</param>
private void HandlePrimaryClick(Vector3 position)
{
TileCoordinates coords = TileCoordinates.FromPosition(position); // get the coordinates of the tile
TileQuadrant quadrant = coords.QuadrantFromPosition(position); // get the quadrant that was clicked
Tile tile = World.GetTileAt(coords); // get the tile at the given coordinates
// handle moving a unit, if the conditions are met
// and if the unit wasn't moved, then
if (!HandleUnitMove(tile))
{
// get the unit that was clicked on
if (!HandleUnitClick(GetUnitInTile(coords, quadrant)))
{
// update the tile information in the gui
HandleTileClick(tile);
}
}
}
/// <summary>
/// Gets the unit in the given tile coordinate and quadrant.
/// </summary>
/// <param name="coordinates">The tile that was clicked.</param>
/// <param name="quadrant">The quadrant of the tile that was clicked.</param>
/// <returns></returns>
private Unit GetUnitInTile(TileCoordinates coordinates, TileQuadrant quadrant)
{
// ensure that the quadrant is in the east, where the units are
if (quadrant.IsWest())
{
return(null);
}
List <Unit>[] units = World.GetUnitsAt(coordinates);
// if the user clicked in the north quadrant, check for military units of our faction (0)
// otherwise check for civilian units of our faction (1)
foreach (Unit u in units[quadrant.IsNorth() ? 0 : 1])
{
if (u.faction == Faction.player)
{
return(u);
}
}
return(null);
}
public static bool IsWest(this TileQuadrant enumVal)
{
return((( int )enumVal & 1) != 0);
}
public static bool IsSouth(this TileQuadrant enumVal)
{
return((( int )enumVal & 4) != 0);
}
public static bool IsNorth(this TileQuadrant enumVal)
{
return((( int )enumVal & 8) != 0);
}