public LakeEdge(ErosionNode a, ErosionNode b)
{
nodes = new HashSet <ErosionNode>()
{
a, b
};
receiver = null;
height = Math.Max(a.Height, b.Height);
}
public void Draw()
{
Gizmos.color = new Color(1, 1, 1, 1F);
foreach (ErosionNode node in nodes)
{
/*
* if (node.Outflow == null)
* {
* Gizmos.color = new Color(1f, 0f, 0f, 1f);
* }
* else if (node.Lake.oceanic)
* {
* Gizmos.color = new Color(0f, 1f, 0f, 1f);
* }
* else
* {
* Gizmos.color = new Color(0.5f, 0.5f, 0.5f, 1f);
* }
* Gizmos.DrawCube(new Vector3(node.X, node.Height, node.Y), Vector3.one);
*/
foreach (GraphEdge edge in node.GetEdges())
{
ErosionNode other = (ErosionNode)edge.GetOtherNode(node);
if (node.Outflow == other || other.Outflow == node)
{
Gizmos.color = new Color(0f, 0f, 1f, 1f);
}
else
{
Gizmos.color = new Color(0.5f, 0.5f, 0.5f, 1f);
}
Gizmos.DrawLine(new Vector3(node.X, node.Height, node.Y), new Vector3(other.X, other.Height, other.Y));
}
if (node.Outflow != null && !node.GetEdges().Any(t => t.GetOtherNode(node) == node.Outflow))
{
ErosionNode other = node.Outflow;
Gizmos.color = new Color(1f, 0f, 1f, 1f);
Gizmos.DrawLine(new Vector3(node.X, node.Height, node.Y), new Vector3(other.X, other.Height, other.Y));
}
}
}
public void AdjustHeights(List <ErosionNode> origins, float delta_t)
{
float max_slope = (float)Math.Tan(0.75); // max angle in radians
Queue <ErosionNode> node_queue = new Queue <ErosionNode>();
foreach (ErosionNode origin in origins)
{
node_queue.Enqueue(origin);
}
while (node_queue.Count > 0)
{
ErosionNode node = node_queue.Dequeue();
foreach (ErosionNode inflow in node.Inflows())
{
node_queue.Enqueue(inflow);
}
if (node.Outflow != null)
{
float fluvial = (float)(node.K * Math.Pow(node.Drainage, node.M) / node.Distance);
float uplift = node.Height + delta_t * (node.Uplift + fluvial * node.Outflow.Height);
uplift = uplift / (1f + delta_t * fluvial);
node.Height = uplift;
if (node.Slope > max_slope)
{
node.Height = node.Outflow.Height + node.Distance * max_slope;
}
else if (node.Slope < (-1 * max_slope))
{
node.Height = node.Outflow.Height - node.Distance * max_slope;
}
}
}
}
public ErosionEdge(ErosionNode a, ErosionNode b) : base(a, b)
{
}
public void AddInflow(ErosionNode a)
{
inflow.Add(a);
}
public LakeNode(ErosionNode origin)
{
this.origin = origin;
oceanic = origin.IsExterior();
nodes = new List <ErosionNode>();
}
