/// <summary>
/// Gets a direction of tile2 related to tile1.
/// </summary>
/// <param name="tile1"></param>
/// <param name="tile2"></param>
/// <returns></returns>
public static Direction GetDirection(TileIndex tile1, TileIndex tile2)
{
if ((tile1 == tile2) || !(AIMap.IsValidTile(tile1) && AIMap.IsValidTile(tile2)))
{
return(Direction.None);
}
int x1 = AIMap.GetTileX(tile1);
int x2 = AIMap.GetTileX(tile2);
int y1 = AIMap.GetTileY(tile1);
int y2 = AIMap.GetTileY(tile2);
if (y1 == y2)
{
// /
return(x1 < x2 ? Direction.SouthWest : Direction.NorthEast);
}
else if (x1 == x2)
{
// \
return(y1 < y2 ? Direction.SouthEast : Direction.NorthWest);
}
return(Direction.None);
}
private static bool IsClear(TileIndex topCorner, int width, int height)
{
if (!AITile.IsBuildableRectangle(topCorner, width, height))
{
return(false);
}
var xx = AIMap.GetTileX(topCorner);
var yy = AIMap.GetTileY(topCorner);
for (var x = 0; x < width; x++)
{
for (var y = 0; y < height; y++)
{
var testTile = topCorner + AIMap.GetTileIndex(x, y);
if (!AIMap.IsValidTile(testTile))
{
return(false);
}
var slope = AITile.GetSlope(testTile);
if (slope != AITile.SLOPE_FLAT)
{
return(false);
}
}
}
return(true);
}
private void BuildSign(TileIndex tile, string text)
{
AILog.Info("Sign (" + AIMap.GetTileX(tile) + ", " + AIMap.GetTileY(tile) + "): " + text);
var signId = AISign.BuildSign(tile, "" + text);
this.signs.AddItem(signId, 0);
}
internal static bool BuildRail(TileIndex previous, TileIndex from, TileIndex to, TileIndex next, HashSet <TileIndex> forbidden, int railCount = 1, Action <TileIndex, string> sign = null)
{
var path = RailBuilder.FindPath(from, to, previous, forbidden, sign);
if (path == null)
{
return(false);
}
for (var i = 0; i < path.Count - 1; i++)
{
var p = i == 0 ? next : path[i - 1].Tile;
var c = path[i].Tile;
var n = i == path.Count - 1 ? previous : path[i + 1].Tile;
var nt = i == 0 ? BuildType.Basic : path[i - 1].Type;
//sign(c, "[" + AIMap.GetTileX(c) + ", " + AIMap.GetTileY(c) + "] " + path[i].type);
bool good = false;
switch (path[i].Type)
{
case BuildType.Basic:
if (path[i].Length > 1)
{
throw new Exception("Should not be rail");
}
if (nt != BuildType.Basic)
{
continue;
}
//AILog.Info("Build a rail from [" + AIMap.GetTileX(p) + ", " + AIMap.GetTileY(p) + "] via [" + AIMap.GetTileX(c) + ", " + AIMap.GetTileY(c) + "] to [" + AIMap.GetTileX(n) + ", " + AIMap.GetTileY(n) + "].");
good = AIRail.BuildRail(p, c, n);
break;
case BuildType.Bridge:
var bridgeTypes = new AIBridgeList_Length(path[i].Length);
//AILog.Info("Build a bridge " + bridgeTypes.Begin() + " from [" + AIMap.GetTileX(c) + ", " + AIMap.GetTileY(c) + "] to [" + AIMap.GetTileX(n) + ", " + AIMap.GetTileY(n) + "].");
good = AIBridge.BuildBridge(AIVehicle.VT_RAIL, bridgeTypes.Begin(), c, n);
if (!good)
{
sign(p, "s");
sign(c, "e");
}
break;
case BuildType.Tunnel:
throw new Exception("Tunnels not supported");
}
if (!good)
{
AILog.Error("Failed to build on [" + AIMap.GetTileX(c) + ", " + AIMap.GetTileY(c) + "]. Reason: " + AIError.GetLastErrorString());
}
}
return(true);
}
private static RailStationInfo FindPlaceForStation(TileIndex tile, int platformLength, int platformCount)
{
var xx = AIMap.GetTileX(tile);
var yy = AIMap.GetTileY(tile);
for (var step = 1; step < 15; step++)
{
for (var i = 0; i < step * 2; i++)
{
var x = xx - step;
var y = yy + Helper.Alternate(i);
var tile2 = AIMap.GetTileIndex(x, y);
var test = RailStationBuilder.TestPlaceForStation(tile2, platformLength, platformCount);
if (test != null)
{
return(test);
}
x = xx - Helper.Alternate(i);
y = yy + step;
tile2 = AIMap.GetTileIndex(x, y);
test = RailStationBuilder.TestPlaceForStation(tile2, platformLength, platformCount);
if (test != null)
{
return(test);
}
x = xx + step;
y = yy + Helper.Alternate(i);
tile2 = AIMap.GetTileIndex(x, y);
test = RailStationBuilder.TestPlaceForStation(tile2, platformLength, platformCount);
if (test != null)
{
return(test);
}
x = xx + Helper.Alternate(i);
y = yy - step;
tile2 = AIMap.GetTileIndex(x, y);
test = RailStationBuilder.TestPlaceForStation(tile2, platformLength, platformCount);
if (test != null)
{
return(test);
}
}
}
return(null);
}
public static string FormatTile(TileIndex tile)
{
return("[" + AIMap.GetTileX(tile) + ", " + AIMap.GetTileY(tile) + "]");
}
private static void BuildIntersection(TileIndex tile1, TileIndex tile2, TileIndex tile3, TileIndex tile4 = null)
{
var tile1x = AIMap.GetTileX(tile1);
var tile1y = AIMap.GetTileY(tile1);
var tile2x = AIMap.GetTileX(tile2);
var tile2y = AIMap.GetTileY(tile2);
var tile3x = AIMap.GetTileX(tile3);
var tile3y = AIMap.GetTileY(tile3);
var x = (int)((tile1x + tile2x + tile3x) / 3.0 + 0.5);
var y = (int)((tile1y + tile2y + tile3y) / 3.0 + 0.5);
var center = AIMap.GetTileIndex(x, y);
var nwTile = AIMap.GetTileIndex(x, y - 1);
var neTile = AIMap.GetTileIndex(x - 1, y);
var swTile = AIMap.GetTileIndex(x + 1, y);
var seTile = AIMap.GetTileIndex(x, y + 1);
if (tile4 != null)
{
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SW); // /
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SE); // \
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_NE); // - (upper)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_SW_SE); // - (lower)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SW); // | left
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SE); // | right
return;
}
if ((tile1 != nwTile) && (tile2 != nwTile) && (tile3 != nwTile))
{
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SW); // /
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_SW_SE); // - (lower)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SE); // | right
return;
}
if ((tile1 != neTile) && (tile2 != neTile) && (tile3 != neTile))
{
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SE); // \
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_SW_SE); // - (lower)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SW); // | left
return;
}
if ((tile1 != swTile) && (tile2 != swTile) && (tile3 != swTile))
{
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SE); // \
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_NE); // - (upper)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SE); // | right
return;
}
if ((tile1 != seTile) && (tile2 != seTile) && (tile3 != seTile))
{
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NE_SW); // /
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_NE); // - (upper)
AIRail.BuildRailTrack(center, AIRail.RAILTRACK_NW_SW); // | left
return;
}
}
public Point(TileIndex tile)
{
this.Tile = tile;
this.X = AIMap.GetTileX(tile);
this.Y = AIMap.GetTileY(tile);
}