void Update()
{
List <Vector2f> points = new List <Vector2f>();
// prepare for Fortunes algorithm and clear neighbours
foreach (GinelliController sheep in sheepList)
{
// prepare data for Voronoi
Vector2 point = new Vector2(sheep.transform.position.x, sheep.transform.position.z);
points.Add(new Vector2f(point.x, point.y, sheep.id));
}
// get metric neighbours
List <GinelliController>[] metricNeighbours = new List <GinelliController> [sheepList.Count];
foreach (GinelliController sheep in sheepList)
{
metricNeighbours[sheep.id] = new List <GinelliController>();
}
GinelliController firstSheep, secondSheep;
for (int i = 0; i < sheepList.Count; i++)
{
firstSheep = sheepList[i];
for (int j = i + 1; j < sheepList.Count; j++)
{
secondSheep = sheepList[j];
// dist?
if ((firstSheep.transform.position - secondSheep.transform.position).sqrMagnitude < GM.r_o2)
{
metricNeighbours[firstSheep.id].Add(secondSheep);
metricNeighbours[secondSheep.id].Add(firstSheep);
}
}
}
foreach (GinelliController sheep in sheepList)
{
sheep.metricNeighbours = metricNeighbours[sheep.id];
}
// voronoi neighbours
Rectf bounds = new Rectf(0f, 0f, GM.fieldSize, GM.fieldSize); // bounds actually irrelevant as Fortunes algoritghm does not use them
Voronoi voronoi = new Voronoi(points, bounds);
foreach (Vector2f pt in points)
{
GinelliController sheep = sheepList[pt.id];
List <GinelliController> voronoiNeighbours = new List <GinelliController>();
foreach (Vector2f neighbourPt in voronoi.NeighborSitesForSite(pt))
{
GinelliController neighbour = sheepList[neighbourPt.id];
voronoiNeighbours.Add(neighbour);
}
sheep.voronoiNeighbours = voronoiNeighbours;
}
}
public void Reset()
{
// clear list
sheepList.Clear();
// get circle radius from N of sheep
float radius = Mathf.Sqrt(GM.nOfSheep / Mathf.PI);
float mid = GM.fieldSize / 2;
// spawn
Vector3 position;
Vector2 randCirc;
GameObject newSheep;
int i = 0;
while (i < GM.nOfSheep)
{
// random position
randCirc = Random.insideUnitCircle * radius;
position = new Vector3(mid + randCirc.x, .0f, mid + randCirc.y);
// instantiate
newSheep = (GameObject)Instantiate(GM.sheepPrefab, position, Quaternion.identity);
// find controller, add to list and enable
GinelliController GC = newSheep.GetComponent <GinelliController>();
// set initial state to idle
GC.sheepState = Enums.SheepState.Idle;
sheepList.Add(GC);
GC.enabled = true;
// set id and add to list
GC.id = i;
i++;
GM.sheepList.Add(newSheep);
}
}
