public void Remove(Vector3 pos, float radius)
{
List <UGrassGroup> toRemove = new List <UGrassGroup>();
for (int i = 0, max = m_Groups.Count; i < max; i++)
{
UGrassGroup g = m_Groups[i];
if (Vector3.Distance(pos, g.center + m_Terrain.transform.position) - radius > m_MaxRadius)
{
continue;
}
g.Remove(pos, radius);
if (g.length == 0)
{
toRemove.Add(g);
m_ApplyGroup.Remove(i);
}
else
{
if (!m_ApplyGroup.Contains(i))
{
m_ApplyGroup.Add(i);
}
}
}
toRemove.ForEach(g => {
m_Groups.Remove(g);
g.Dispose();
});
}
public void Add(UGrassInstance instance)
{
UGrassGroup group = null;
for (int i = 0; i < m_Groups.Count; i++)
{
UGrassGroup g = m_Groups[i];
if (Vector3.Distance(instance.position, g.center) < m_MaxRadius && g.length < m_MaxVector)
{
group = g;
if (!m_ApplyGroup.Contains(i))
{
m_ApplyGroup.Add(i);
}
}
}
if (group == null)
{
if (!m_ApplyGroup.Contains(m_Groups.Count))
{
m_ApplyGroup.Add(m_Groups.Count);
}
m_Groups.Add(new UGrassGroup(m_GameObject.transform, m_Terrain, material, instance));
}
else
{
group.Add(instance);
}
}
bool CheckGrassDistance(UGrassGroup group, Vector3 position, float density)
{
foreach (UGrassInstance ins in group.instances)
{
if ((ins.position - position).magnitude < density)
{
return(false);
}
}
return(true);
}
public void AddArea(UGrassInstance instance, float density)
{
int groupIndex = GetGroupIndex(instance);
UGrassGroup group = m_Groups[groupIndex];
if (CheckGrassDistance(group, instance.position, density))
{
group.Add(instance);
if (!m_ApplyGroup.Contains(groupIndex))
{
m_ApplyGroup.Add(groupIndex);
}
}
}
int GetGroupIndex(UGrassInstance instance)
{
int index = -1;
for (int i = 0; i < m_Groups.Count; i++)
{
UGrassGroup g = m_Groups[i];
if (Vector3.Distance(instance.position, g.center) < m_MaxRadius && g.length < m_MaxVector)
{
index = i;
break;
}
}
if (index == -1)
{
m_Groups.Add(new UGrassGroup(m_GameObject.transform, m_Terrain, material, instance));
index = m_Groups.Count - 1;
if (!m_ApplyGroup.Contains(index))
{
m_ApplyGroup.Add(index);
}
}
return(index);
}
