/// <summary>
/// Called when the game determines it is time to draw a frame.
/// </summary>
public override void Draw()
{
Display.ClearBuffers();
Batch.Begin();
// Draw map
for (int y = 0; y < MapSize.Height; y++)
{
for (int x = 0; x < MapSize.Width; x++)
{
PathNode node = PathFinder.GetNode(x, y);
Color color = node.IsWalkable ? Color.White : Color.Black;
Batch.FillRectangle(new Rectangle(x * BlockSize.Width, y * BlockSize.Height, BlockSize.Width, BlockSize.Height), color);
if (!node.IsOpen)
{
Batch.FillRectangle(new Rectangle(x * BlockSize.Width, y * BlockSize.Height, BlockSize.Width, BlockSize.Height), Color.FromArgb(128, Color.LightBlue));
}
}
}
// Draw path
if (Path != null)
{
foreach (PathNode node in Path)
{
Point location = new Point(node.Location.X * BlockSize.Width, node.Location.Y * BlockSize.Height);
// Draw rectangle
Batch.FillRectangle(new Rectangle(location.X, location.Y, BlockSize.Width, BlockSize.Height), Color.FromArgb(128, Color.Red));
}
}
// DebugPath();
if (!Start.IsEmpty)
{
Batch.FillRectangle(new Rectangle(Start.X * BlockSize.Width, Start.Y * BlockSize.Height, BlockSize.Width, BlockSize.Height), Color.Red);
}
if (!Destination.IsEmpty)
{
Batch.FillRectangle(new Rectangle(Destination.X * BlockSize.Width, Destination.Y * BlockSize.Height, BlockSize.Width, BlockSize.Height), Color.Green);
}
// Draw mouse
int mousex = Mouse.Location.X - (Mouse.Location.X % BlockSize.Width);
int mousey = Mouse.Location.Y - (Mouse.Location.Y % BlockSize.Height);
if (mousex < BlockSize.Width * MapSize.Width && mousey < BlockSize.Height * MapSize.Height)
{
Batch.DrawRectangle(new Rectangle(mousex, mousey, BlockSize.Width, BlockSize.Height), Color.FromArgb(128, Color.Red));
}
// some debug text
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 10), Color.Black, "Mouse location : " + MouseLocation.ToString());
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 25), Color.Red, "Start location : " + Start.ToString());
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 40), Color.Green, "Destination location : " + Destination.ToString());
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 100), Color.Black, "Press spacebar to reset Start and Destination.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 115), Color.Black, "Press enter to find the path.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 130), Color.Black, "Press R to make some random unwakable block.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 145), Color.Black, "Press C to clear map.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 200), Color.Black, "F = G + H.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 215), Color.Black, "G = Movement cost to move from the starting point.");
Batch.DrawString(Font, new Point(MapSize.Width * BlockSize.Width + 50, 230), Color.Black, "H = Estimated movement cost to move to the final destination.");
Batch.End();
}
