private Position getFreePosition()
{
int displayWidth = agent.game.graphics.PreferredBackBufferWidth;
int displayHeight = agent.game.graphics.PreferredBackBufferHeight;
bool continueSearch = true;
Position position;
do
{
position = new Position(new Vector2(rand.Next(0, displayWidth - agent.texture.Width), rand.Next(0, displayHeight - agent.texture.Height)), new Vector2(agent.texture.Width, agent.texture.Height));
continueSearch = false;
foreach (Obstacle obs in map.obstacleList)
{
if (position.Intersect(obs.position))
{
continueSearch = true;
break;
}
}
} while (continueSearch);
return position;
}
/// <summary>
/// Seçilmiş harita içerisinde herhangi bu pozisyona bir serbest bir yolun olup olmadığını hesaplar.
/// </summary>
/// <param name="position"></param>
/// <param name="map"></param>
/// <returns></returns>
public bool isConnectable(Position position, Map map)
{
Position virtualPosition = new Position(this.leftUpCorner, this.size);
Vector2 direction;
bool XisSame = false;
bool YisSame = false;
while (true)
{
direction = position.leftUpCorner - virtualPosition.leftUpCorner; // Yön belirlenir.
direction.Normalize();
virtualPosition.leftUpCorner += direction;
if (float.IsNaN(virtualPosition.leftUpCorner.X) || float.IsNaN(virtualPosition.leftUpCorner.Y))
return false;
foreach (Obstacle obs in map.obstacleList)
{
if (virtualPosition.Intersect(obs.position))
return false;
}
if ((Math.Abs(virtualPosition.leftUpCorner.X - position.leftUpCorner.X) <= (Math.Abs(direction.X * 2))) && !XisSame )
{
XisSame = true;
virtualPosition.leftUpCorner.X = position.leftUpCorner.X;
}
if ((Math.Abs(virtualPosition.leftUpCorner.Y - position.leftUpCorner.Y) <= (Math.Abs(direction.Y * 2))) && !YisSame )
{
YisSame = true;
virtualPosition.leftUpCorner.Y = position.leftUpCorner.Y;
}
if (XisSame && YisSame)
return true;
}
}