/// <summary>
/// Crée une nouvelle <see cref="Region"/> vide.
/// </summary>
/// <param name="topLeft">Limite haut gauche.</param>
/// <param name="bottomRight">Limite bas droite.</param>
public Region(Vector2 topLeft, Vector2 bottomRight)
{
if (topLeft.x > bottomRight.x || topLeft.y < bottomRight.y)
{
throw new ArgumentException("Unable to create region : top left limit is below or to the right of the bottom right limit.");
}
nodeCount = 0;
nodes = new Node[MaxNodeCount];
subregions = new Region[NbSubregions];
this.topLeft = topLeft;
this.bottomRight = bottomRight;
size = new Vector2(bottomRight.x - topLeft.x, topLeft.y - bottomRight.y);
center = new Vector2(bottomRight.x - size.x / 2, topLeft.y - size.y / 2);
reusableNodeList = new ReusableList <Node>();
}