public float getMinHeight(float x, float y)
{
if (_minHeight == null)
{
return(-500.0f);
}
uint[] indices =
{
3, 0, 4,
0, 1, 4,
1, 2, 4,
2, 5, 4,
5, 8, 4,
8, 7, 4,
7, 6, 4,
6, 3, 4
};
float[] boundGridCoords =
{
0.0f, 0.0f,
0.0f, -266.66666f,
0.0f, -533.33331f,
-266.66666f, 0.0f,
-266.66666f, -266.66666f,
-266.66666f, -533.33331f,
-533.33331f, 0.0f,
-533.33331f, -266.66666f,
-533.33331f, -533.33331f
};
Cell cell = new Cell(x, y);
float gx = x - (cell.GetGridX() - MapConst.CenterGridId + 1) * MapConst.SizeofGrids;
float gy = y - (cell.GetGridY() - MapConst.CenterGridId + 1) * MapConst.SizeofGrids;
uint quarterIndex = 0;
if (cell.GetCellY() < MapConst.MaxCells / 2)
{
if (cell.GetCellX() < MapConst.MaxCells / 2)
{
quarterIndex = 4 + (gy > gx ? 1u : 0u);
}
else
{
quarterIndex = (2 + ((-MapConst.SizeofGrids - gx) > gy ? 1u : 0));
}
}
else if (cell.GetCellX() < MapConst.MaxCells / 2)
{
quarterIndex = 6 + ((-MapConst.SizeofGrids - gx) <= gy ? 1u : 0);
}
else
{
quarterIndex = gx > gy ? 1u : 0;
}
quarterIndex *= 3;
return(new Plane(
new Vector3(boundGridCoords[indices[quarterIndex + 0] * 2 + 0], boundGridCoords[indices[quarterIndex + 0] * 2 + 1], _minHeight[indices[quarterIndex + 0]]),
new Vector3(boundGridCoords[indices[quarterIndex + 1] * 2 + 0], boundGridCoords[indices[quarterIndex + 1] * 2 + 1], _minHeight[indices[quarterIndex + 1]]),
new Vector3(boundGridCoords[indices[quarterIndex + 2] * 2 + 0], boundGridCoords[indices[quarterIndex + 2] * 2 + 1], _minHeight[indices[quarterIndex + 2]])
).GetDistanceToPlane(new Vector3(gx, gy, 0.0f)));
}
public Grid(Cell cell, uint expiry, bool unload = true) : this(cell.GetId(), cell.GetGridX(), cell.GetGridY(), expiry, unload)
{
}