public Thinner(ContentManager content)
{
// Load the texture
texture = content.Load<Texture2D>(ASSET);
// Choose a random polygon and draw the thinner there
int id = GameMode.random.Next(GameMode.polygons.Count);
position = new Vector3(GameMode.polygons[id].center.X, GameMode.polygons[id].center.Y, 0);
// Initialize the bounding box
bound = new BoundingSphere(position, Math.Max(texture.Height, texture.Width));
// Add a scent to the graph
Scent s = new Scent(id, 1, null, 0);
GameMode.smells.nodes[id].AddSignal(s);
s.Propagate();
}
/// <summary>
/// Propagates a given signal
/// </summary>
public void Propagate()
{
if (intensity <= 0.1f)
return;
for (int i = 0; i != graph.nodes.Count; ++i)
{
// If the nodes are not neighboors, continue
if (float.IsPositiveInfinity(graph.arcs[id, i]))
continue;
// Calculate the intensity of the new signal
float newIntensity = MathHelper.Min(intensity * factor / graph.arcs[id, i], 0.9f);
// Now check the signals in the node
bool ok = true;
foreach (Scent scent in graph.nodes[i].signals)
{
// If there is a scent with less intensity, replace it
if (scent.intensity < newIntensity)
{
scent.intensity = newIntensity;
scent.endInterval = maxtime * newIntensity * 3.5f;
// scent.origin = graph.nodes[id];
scent.origin = origin;
scent.Propagate();
}
ok = false;
}
// If there wasn't a scent in the node, add one
if (ok)
{
// Scent s = new Scent(i, newIntensity, graph.nodes[id], i);
Scent s = new Scent(i, newIntensity, origin, i);
graph.nodes[i].AddSignal(s);
s.Propagate();
}
}
}