/// <summary>
/// Initialize the Tiled Navigation Mesh variables and arrays.
/// </summary>
/// <param name="parameters">Tiled Navigation Mesh attributes</param>
/// <returns>True if initialization is successful</returns>
public bool InitTileNavMesh()
{
//init tiles
tileLookupTableSize = MathHelper.NextPowerOfTwo(maxTiles / 4);
if (tileLookupTableSize == 0)
{
tileLookupTableSize = 1;
}
tileLookupTableMask = tileLookupTableSize - 1;
tiles = new MeshTile[maxTiles];
posLookup = new MeshTile[tileLookupTableSize];
for (int i = 0; i < tiles.Length; i++)
{
tiles[i] = new MeshTile();
}
for (int i = 0; i < posLookup.Length; i++)
{
posLookup[i] = null;
}
//create a linked list of tiles
nextFree = null;
for (int i = maxTiles - 1; i >= 0; i--)
{
tiles[i].Salt = 1;
tiles[i].Next = nextFree;
nextFree = tiles[i];
}
//init ID generator values
tileBits = MathHelper.Log2(MathHelper.NextPowerOfTwo(maxTiles));
polyBits = MathHelper.Log2(MathHelper.NextPowerOfTwo(maxPolys));
//only allow 31 salt bits, since salt mask is calculated using 32-bit int and it will overflow
saltBits = Math.Min(31, 32 - tileBits - polyBits);
if (saltBits < 10)
{
return(false);
}
return(true);
}
public void Log2_PositiveIntegerUint_Success()
{
uint num = MathHelper.Log2((uint)65);
Assert.AreEqual(num, 6);
}
