private void Generate()
{
if (!_initialized)
{
return;
}
_surfaceTool.Clear();
_meshDataTool.Clear();
_surfaceTool.CreateFrom(_meshInstance.Mesh, 0);
_meshDataTool.CreateFromSurface(_surfaceTool.Commit(), 0);
int numVertices = _meshDataTool.GetVertexCount();
_data = new float[numVertices];
for (int i = 0; i < numVertices; i++)
{
Vector3 vertex = _meshDataTool.GetVertex(i);
_data[i] = Amplitude * _noise.GetNoise2d(vertex.x, vertex.z);
_meshDataTool.SetVertex(i, new Vector3(vertex.x, _data[i], vertex.z));
_meshDataTool.SetVertexNormal(i, Vector3.Up);
}
for (int i = 0; i < numVertices - _resX; i++)
{
Vector3 a = _meshDataTool.GetVertex(i);
Vector3 b = _meshDataTool.GetVertex(i + 1);
Vector3 c = _meshDataTool.GetVertex(i + _resX);
Vector3 normal = (c - a).Cross(b - a);
for (int j = i; j < i + 3; j++)
{
_meshDataTool.SetVertexNormal(j, _meshDataTool.GetVertexNormal(j) + normal);
}
}
for (int i = 0; i < numVertices; i++)
{
_meshDataTool.SetVertexNormal(i, _meshDataTool.GetVertexNormal(i).Normalized());
}
ArrayMesh newMesh = new ArrayMesh();
_meshDataTool.CommitToSurface(newMesh);
_meshInstance.Mesh = newMesh;
_meshInstance.RemoveChild(_meshInstance.GetChild(0));
_meshInstance.CreateTrimeshCollision();
}
