private unsafe void ParseExistsTable(byte* mh2oChunk, SMLiquidInstance* instance)
{
if (instance->existsTable != 0 && UseExistsTable(instance->liquidObjectId, instance->liquidType))
{
var table = mh2oChunk + instance->existsTable;
ExistsTable = new bool[TilesPerRow, TilesPerRow];
for (int x = MinX; x < MaxX; x++)
{
for (int y = MinY; y < MaxY; y++)
{
int index = y*(MaxX - MinX) + x;
ExistsTable[y, x] = (table[index/8] & (1 << (index & 7))) != 0;
}
}
}
else
{
ExistsTable = FullExistsTable;
}
}
private unsafe void ParseHeightMap(byte* mh2oChunk, SMLiquidInstance* instance)
{
if (HasHeightMapData(instance) && UseExistsTable(instance->liquidObjectId, instance->liquidType))
{
var data = (float*)(mh2oChunk + instance->data);
HeightMap = new float[VerticesPerRow, VerticesPerRow];
for (int y = MinY; y <= MaxY; y++)
{
for (int x = MinX; x <= MaxX; x++)
{
int index = y*(MaxX - MinX + 1) + x;
HeightMap[y, x] = data[index];
}
}
}
else
{
HeightMap = ArrayUtil.MakeTwoDimensionalArray(instance->maxWaterHeight, VerticesPerRow, VerticesPerRow);
}
}
private static unsafe bool HasHeightMapData(SMLiquidInstance* instance)
{
return instance->data != 0;
}