IEnumerator Generate()
{
generating = true;
List <Point> pointsList = new List <Point>();
List <Bar> barsList = new List <Bar>();
List <List <Matrix4x4> > matricesList = new List <List <Matrix4x4> >();
matricesList.Add(new List <Matrix4x4>());
// buildings
for (int i = 0; i < 35; i++)
{
int height = Random.Range(4, 12);
Vector3 pos = new Vector3(Random.Range(-45f, 45f), 0f, Random.Range(-45f, 45f));
float spacing = 2f;
for (int j = 0; j < height; j++)
{
Point point = new Point();
point.x = pos.x + spacing;
point.y = j * spacing;
point.z = pos.z - spacing;
point.oldX = point.x;
point.oldY = point.y;
point.oldZ = point.z;
if (j == 0)
{
point.anchor = true;
}
pointsList.Add(point);
point = new Point();
point.x = pos.x - spacing;
point.y = j * spacing;
point.z = pos.z - spacing;
point.oldX = point.x;
point.oldY = point.y;
point.oldZ = point.z;
if (j == 0)
{
point.anchor = true;
}
pointsList.Add(point);
point = new Point();
point.x = pos.x + 0f;
point.y = j * spacing;
point.z = pos.z + spacing;
point.oldX = point.x;
point.oldY = point.y;
point.oldZ = point.z;
if (j == 0)
{
point.anchor = true;
}
pointsList.Add(point);
}
}
// ground details
for (int i = 0; i < 600; i++)
{
Vector3 pos = new Vector3(Random.Range(-55f, 55f), 0f, Random.Range(-55f, 55f));
Point point = new Point();
point.x = pos.x + Random.Range(-.2f, -.1f);
point.y = pos.y + Random.Range(0f, 3f);
point.z = pos.z + Random.Range(.1f, .2f);
point.oldX = point.x;
point.oldY = point.y;
point.oldZ = point.z;
pointsList.Add(point);
point = new Point();
point.x = pos.x + Random.Range(.2f, .1f);
point.y = pos.y + Random.Range(0f, .2f);
point.z = pos.z + Random.Range(-.1f, -.2f);
point.oldX = point.x;
point.oldY = point.y;
point.oldZ = point.z;
if (Random.value < .1f)
{
point.anchor = true;
}
pointsList.Add(point);
}
int batch = 0;
for (int i = 0; i < pointsList.Count; i++)
{
for (int j = i + 1; j < pointsList.Count; j++)
{
Bar bar = new Bar();
bar.AssignPoints(pointsList[i], pointsList[j]);
if (bar.length < 5f && bar.length > .2f)
{
bar.point1.neighborCount++;
bar.point2.neighborCount++;
barsList.Add(bar);
matricesList[batch].Add(bar.matrix);
if (matricesList[batch].Count == instancesPerBatch)
{
batch++;
matricesList.Add(new List <Matrix4x4>());
}
if (barsList.Count % 500 == 0)
{
yield return(null);
}
}
}
}
points = new Point[barsList.Count * 2];
pointCount = 0;
for (int i = 0; i < pointsList.Count; i++)
{
if (pointsList[i].neighborCount > 0)
{
points[pointCount] = pointsList[i];
pointCount++;
}
}
Debug.Log(pointCount + " points, room for " + points.Length + " (" + barsList.Count + " bars)");
bars = barsList.ToArray();
matrices = new Matrix4x4[matricesList.Count][];
for (int i = 0; i < matrices.Length; i++)
{
matrices[i] = matricesList[i].ToArray();
}
matProps = new MaterialPropertyBlock[barsList.Count];
Vector4[] colors = new Vector4[instancesPerBatch];
for (int i = 0; i < barsList.Count; i++)
{
colors[i % instancesPerBatch] = barsList[i].color;
if ((i + 1) % instancesPerBatch == 0 || i == barsList.Count - 1)
{
MaterialPropertyBlock block = new MaterialPropertyBlock();
block.SetVectorArray("_Color", colors);
matProps[i / instancesPerBatch] = block;
}
}
pointsList = null;
barsList = null;
matricesList = null;
System.GC.Collect();
generating = false;
Time.timeScale = 1f;
}
