public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
Vector3ToHash other = (Vector3ToHash)obj;
return(Mathf.Approximately(m_v.x, other.m_v.x) && Mathf.Approximately(m_v.y, other.m_v.y) && Mathf.Approximately(m_v.z, other.m_v.z));
}
public override void Paint(Vector3 pos, float value, float opacity)
{
if (TerrainTreeIndex < 0)
{
return;
}
var data = Terrain.terrainData;
Vector2 center = new Vector2(pos.x / Scale.x, pos.z / Scale.y);
Vector2 radius_ext = new Vector2(Radius / Scale.x, Radius / Scale.y);
Vector2Int minPos = Floor(center - radius_ext);
Vector2Int maxPos = Ceil(center + radius_ext);
if (value > 0)
{
if (m_firstModification)
{
m_nextModificationTime = Time.time + 0.3f;
m_firstModification = false;
m_pos = pos;
}
else
{
if (Time.time < m_nextModificationTime && m_pos == pos)
{
return;
}
}
}
Dictionary <Vector3ToHash, TreeInstance> treeInstances = new Dictionary <Vector3ToHash, TreeInstance>();
foreach (TreeInstance tree in data.treeInstances)
{
Vector3ToHash vth = new Vector3ToHash(new Vector3(tree.position.x * data.size.x, 0, tree.position.z * data.size.z));
if (!treeInstances.ContainsKey(vth))
{
treeInstances.Add(vth, tree);
}
}
int sizeY = maxPos.y - minPos.y;
int sizeX = maxPos.x - minPos.x;
if (minPos.x > 0)
{
minPos.x = 0;
}
if (minPos.y > 0)
{
minPos.y = 0;
}
bool any = false;
for (int y = 0; y < sizeY; y++)
{
for (int x = 0; x < sizeX; x++)
{
float u = (x - minPos.x) / (float)(sizeX - 1);
float v = (y - minPos.y) / (float)(sizeY - 1);
float f = Eval(u, v);
if (f > 0.5f && Random.value < opacity * 0.05f)
{
Vector3 position = new Vector3((center.x + (x - minPos.x) - sizeX / 2), 0, (center.y + (y - minPos.y) - sizeY / 2));
if (value > 0)
{
CreateTreeInstance(treeInstances, position, data.size);
}
else
{
treeInstances.Remove(new Vector3ToHash(position));
}
any = true;
}
}
}
if (!any)
{
Vector3 position = new Vector3(pos.x, 0, pos.z);
if (value > 0)
{
CreateTreeInstance(treeInstances, position, data.size);
}
else
{
treeInstances.Remove(new Vector3ToHash(position));
}
}
Terrain.SetTreeInstances(treeInstances.Values.ToArray(), true);
}
