/// <summary> /// Gets a collection of pathfinder nodes to this creature. Returns an empty IEnumerable if unreachable. /// </summary> /// <param name="tileCollection">The list of tiles on screen to use for pathfinding.</param> /// <param name="pathFinder">The PathFinder object to use.</param> /// <returns></returns> public IEnumerable <Objects.PathFinder.Node> GetTilesToCreature(Map.TileCollection tileCollection, Objects.PathFinder pathFinder) { if (pathFinder == null) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } if (this.Location.IsAdjacentTo(this.Client.Player.Location)) { return(new List <Objects.PathFinder.Node>() { new Objects.PathFinder.Node() { X = 8, Y = 6 } }); } if (!this.Location.IsOnScreen(this.Client.Player.Location)) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } uint playerZ = this.Client.Player.Z; if (tileCollection.IsEmpty()) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } Map.Tile playerTile = tileCollection.GetTile(count: this.Client.Player.ID); Map.Tile creatureTile = tileCollection.GetTile(count: this.ID); if (playerTile == null || creatureTile == null) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } lock (pathFinder) { pathFinder.ResetGrid(); foreach (Map.Tile tile in tileCollection.GetTiles()) { if (tile == null) { continue; } if (!tile.IsWalkable()) { pathFinder.Grid[tile.MemoryLocation.X, tile.MemoryLocation.Y] = (byte)Enums.MiniMapSpeedValues.Unwalkable; } else { pathFinder.Grid[tile.MemoryLocation.X, tile.MemoryLocation.Y] = 1; } } pathFinder.Grid[playerTile.MemoryLocation.X, playerTile.MemoryLocation.Y] = 1; pathFinder.Grid[creatureTile.MemoryLocation.X, creatureTile.MemoryLocation.Y] = 1; return(pathFinder.FindPath(playerTile.MemoryLocation, creatureTile.MemoryLocation, true)); } }
/// <summary> /// Gets a collection of pathfinder nodes to a given location. Returns 0 elements if unsuccessful. /// </summary> /// <param name="c">The client to perform the operation on.</param> /// <param name="loc">The location to reach.</param> /// <param name="tiles">A list of tiles to use for pathfinding.</param> /// <param name="pathFinder">The pathfinder to use.</param> /// <param name="considerPlayerWalkable">Whether to consider the player as walkable.</param> /// <param name="considerCreatureOnLocationWalkable">Whether to consider any creatures on the target location as walkable.</param> /// <returns></returns> public IEnumerable <Objects.PathFinder.Node> GetTilesToLocation(Objects.Client c, Location loc, Map.TileCollection tiles, Objects.PathFinder pathFinder, bool considerPlayerWalkable = false, bool considerCreatureOnLocationWalkable = false) { if (pathFinder == null) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } //return pathFinder. if (!this.IsOnScreen(c.Player.Location)) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } uint playerId = c.Player.ID; Map.Tile playerTile = tiles.GetTile(count: playerId); Map.Tile fromTile = tiles.GetTile(this); Map.Tile targetTile = tiles.GetTile(loc); if (playerTile == null || fromTile == null || targetTile == null) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } // check if target tile is walkable if (!targetTile.IsWalkable() && (!considerPlayerWalkable || targetTile != playerTile)) { return(Enumerable.Empty <Objects.PathFinder.Node>()); } if (fromTile == targetTile) { return(Enumerable.AsEnumerable(new Objects.PathFinder.Node[] { new Objects.PathFinder.Node() })); } lock (pathFinder) { pathFinder.ResetGrid(); foreach (Map.Tile tile in tiles.GetTiles()) { if (tile == null) { continue; } if ((considerPlayerWalkable && tile == playerTile) || tile.IsWalkable()) { pathFinder.Grid[tile.MemoryLocation.X, tile.MemoryLocation.Y] = 1; } else { pathFinder.Grid[tile.MemoryLocation.X, tile.MemoryLocation.Y] = (byte)Enums.MiniMapSpeedValues.Unwalkable; } } pathFinder.Grid[fromTile.MemoryLocation.X, fromTile.MemoryLocation.Y] = 1; return(pathFinder.FindPath(fromTile.MemoryLocation, targetTile.MemoryLocation)); } }