/// <summary>
/// Moves the digger up, down, left, or right,
/// clearing a path if it was not already clear.
/// </summary>
/// <param name="dir">An action specifying the direction
/// to move in</param>
/// <returns>The new location of the digger</returns>
protected Vector2 Move(DiggerAction dir)
{
// Calculate the new location of the digger
Vector2 end = transform.position;
switch (dir)
{
case DiggerAction.Up:
end += Vector2.up;
break;
case DiggerAction.Down:
end += Vector2.down;
break;
case DiggerAction.Left:
end += Vector2.left;
break;
case DiggerAction.Right:
end += Vector2.right;
break;
default:
throw new System.Exception(dir + " is not a valid directional action.");
}
// Don't allow the digger to move outside the
// maximum size of the area
if (end.x < 0 || end.x >= LevelManager.instance.width ||
end.y < 0 || end.y >= LevelManager.instance.height)
{
return(transform.position);
}
// Trigger the coroutine to move the agent
isMoving = true;
StartCoroutine(SmoothMovement(end));
// Clear out the tile if it was a block
if (LevelManager.instance.GetTileAt((int)end.x, (int)end.y) == LevelManager.CELL_BLOCK)
{
LevelManager.instance.SetTileAt((int)end.x, (int)end.y, LevelManager.CELL_OPEN);
}
return(end);
}
public Step(DiggerAction action, State state)
{
Action = action;
State = state;
}
