/// <summary>
/// 加网格
/// </summary>
private void AddGrid()
{
grid = new Grid()
{
ShowGridLines = IsShowGrid.IsChecked.Value,
Width = width,
Height = height,
};
int cols = (int)(grid.Width) / gridwidth + 1;
int rows = (int)(grid.Height) / gridheight + 1;
for (int y = 0; y < cols; y++)
{
ColumnDefinition col = new ColumnDefinition()
{
Width = new GridLength(gridwidth)
};
grid.ColumnDefinitions.Add(col);
}
for (int x = 0; x < rows; x++)
{
RowDefinition row = new RowDefinition()
{
Height = new GridLength(gridheight)
};
grid.RowDefinitions.Add(row);
}
ObstructionViewer.Content = grid;
//初始化地图数据
//看数据是否为空，来渲染障碍物
if (Matrix != null)
{
for (int x = 0; x <= Matrix.GetUpperBound(1); x++)
{
for (int y = 0; y <= Matrix.GetUpperBound(0); y++)
{
if (Matrix[y, x] == obstruct)
{
//为障碍物
grid.UnregisterName("rect" + x + "_" + y);
}
}
}
}
if (startPos != null)
{
grid.UnregisterName("startPos");
}
if (endPos != null)
{
grid.UnregisterName("endPos");
}
if (paths != null)
{
foreach (var item in paths)
{
grid.UnregisterName("path" + item.x + "_" + item.y);
}
}
startPos = null;
endPos = null;
paths = null;
//初始化障碍物数据
Matrix = new byte[rows, cols];
for (int y = 0; y < rows; y++)
{
for (int x = 0; x < cols; x++)
{
Matrix[y, x] = 1;
}
}
}
/// <summary>
/// 设置网格颜色
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="value"></param>
private void SetMatrixGrid(int x, int y, byte value)
{
if (x < 0 || y < 0 || y > Matrix.GetUpperBound(0) || x > Matrix.GetUpperBound(1))
{
return;
}
//先获取原先这个格子的数据
int old_value = Matrix[y, x];
if (value == 0)
{
//设置障碍物
if (old_value == 0)
{
Matrix[y, x] = 1;
//先清除障碍物
Rectangle temp_rect = grid.FindName("rect" + x + "_" + y) as Rectangle;
grid.UnregisterName("rect" + x + "_" + y);
grid.Children.Remove(temp_rect);
}
else
{
Matrix[y, x] = 0;
Rectangle rect = new Rectangle()
{
Width = gridwidth,
Height = gridheight,
Fill = new SolidColorBrush(Colors.Gray)
};
grid.Children.Add(rect);
grid.RegisterName("rect" + x + "_" + y, rect);
rect.SetValue(Grid.ColumnProperty, x);
rect.SetValue(Grid.RowProperty, y);
}
}
else if (value == 2)
{
//设置起点
if (startPos != null)
{
//先清除起点
Rectangle temp_rect = grid.FindName("startPos") as Rectangle;
grid.UnregisterName("startPos");
grid.Children.Remove(temp_rect);
}
Rectangle rect = new Rectangle()
{
Width = gridwidth,
Height = gridheight,
Fill = new SolidColorBrush(Colors.Red)
};
grid.Children.Add(rect);
grid.RegisterName("startPos", rect);
rect.SetValue(Grid.ColumnProperty, x);
rect.SetValue(Grid.RowProperty, y);
startPos = new Pos(x, y);
SearchPath();
}
else if (value == 3 && old_value != 3)
{
//设置终点
if (endPos != null)
{
//先清除终点
Rectangle temp_rect = grid.FindName("endPos") as Rectangle;
grid.UnregisterName("endPos");
grid.Children.Remove(temp_rect);
}
Rectangle rect = new Rectangle()
{
Width = gridwidth,
Height = gridheight,
Fill = new SolidColorBrush(Colors.Blue)
};
grid.Children.Add(rect);
grid.RegisterName("endPos", rect);
rect.SetValue(Grid.ColumnProperty, x);
rect.SetValue(Grid.RowProperty, y);
endPos = new Pos(x, y);
SearchPath();
}
else if (value == 4)
{
//画路径
Rectangle rect = new Rectangle()
{
Width = gridwidth,
Height = gridheight,
Fill = new SolidColorBrush(Colors.Green)
};
grid.Children.Add(rect);
grid.RegisterName("path" + x + "_" + y, rect);
rect.SetValue(Grid.ColumnProperty, x);
rect.SetValue(Grid.RowProperty, y);
paths.Add(new Pos(x, y));
}
}