private void DrawTile(object sender, NodeAddedToCollectionEventArgs args)
{
mainDispatcher.Invoke(() =>
{
Node node = args.node;
AStarTile tile = AStarValues.AStarTiles[node.RowIndex, node.ColumnIndex];
if (tile == null)
{
tile = new AStarTile(node.RowIndex, node.ColumnIndex);
}
Tile tileType = tile.TileType;
if (tileType == Tile.Empty || tileType == Tile.EmptyClosed || tileType == Tile.EmptyOpen)
{
Tile newType = Tile.Empty;
if (sender is OpenSet)
{
newType = Tile.EmptyOpen;
}
else if (sender is ClosedSet)
{
newType = Tile.EmptyClosed;
}
tile.TileType = newType;
AStarValues.SetAStarTile(tile);
}
}, DispatcherPriority.Normal);
}
private void RemoveTile(object sender, MouseEventArgs e)
{
if (AStarValues.AStarState == State.HasNotStarted)
{
Point mousePosition = e.GetPosition(canvas);
double MousePosX = mousePosition.X;
double MousePosY = mousePosition.Y;
int RowIndex = GetRowIndex(MousePosY);
int ColumnIndex = GetColumnIndex(MousePosX);
AStarTile oldTile = AStarValues.AStarTiles[RowIndex, ColumnIndex];
if (oldTile == null)
{
return;
}
if (oldTile.TileType == Tile.Start)
{
AStarValues.StartTile = null;
}
else if (oldTile.TileType == Tile.Goal)
{
AStarValues.GoalTile = null;
}
var emptyTile = new AStarTile(RowIndex, ColumnIndex, Tile.Empty);
AStarValues.SetAStarTile(emptyTile);
}
}
private void SetGoalTile(int RowIndex, int ColumnIndex)
{
var goalTile = new AStarTile(RowIndex, ColumnIndex, Tile.Goal);
AStarValues.SetAStarTile(goalTile);
AStarValues.GoalTile = goalTile;
SetGoalTileValueChanged(this, EventArgs.Empty);
}
private void SetStartTile(int RowIndex, int ColumnIndex)
{
var startTile = new AStarTile(RowIndex, ColumnIndex, Tile.Start);
AStarValues.SetAStarTile(startTile);
AStarValues.StartTile = startTile;
SetStartTileValueChanged(this, EventArgs.Empty);
}
private void ClearTiles_Pressed(object sender, EventArgs args)
{
int numRows = AStarValues.NumGridRows;
int numColumns = AStarValues.NumGridColumns;
AStarValues.StartTile = null;
AStarValues.GoalTile = null;
for (int i = 0; i < numRows; i++)
{
for (int j = 0; j < numColumns; j++)
{
var newTile = new AStarTile(i, j, Tile.Empty);
AStarValues.SetAStarTile(newTile);
}
}
}
private void ResetPathTiles(object sender, EventArgs args)
{
AStarTile[,] tiles = AStarValues.AStarTiles;
foreach (AStarTile tile in tiles)
{
if (tile == null)
{
continue;
}
if (tile.TileType == Tile.EmptyClosed || tile.TileType == Tile.EmptyOpen)
{
tile.TileType = Tile.Empty;
AStarValues.SetAStarTile(tile);
}
}
}
private void SetWallTile(int RowIndex, int ColumnIndex)
{
var wallTile = new AStarTile(RowIndex, ColumnIndex, Tile.Wall);
AStarValues.SetAStarTile(wallTile);
}
public void RedrawTile()
{
AStarValues.SetAStarTile(this);
}