/// <summary>
/// Converts the land bitmap to a packet friendly byte array
/// </summary>
/// <returns></returns>
private byte[] ConvertLandBitmapToBytes()
{
byte[] tempConvertArr = new byte[LandBitmap.GetLength(0) * LandBitmap.GetLength(1) / 8];
byte tempByte = 0;
int byteNum = 0;
int i = 0;
for (int y = 0; y < LandBitmap.GetLength(1); y++)
{
for (int x = 0; x < LandBitmap.GetLength(0); x++)
{
tempByte = Convert.ToByte(tempByte | Convert.ToByte(LandBitmap[x, y]) << (i++ % 8));
if (i % 8 == 0)
{
tempConvertArr[byteNum] = tempByte;
tempByte = (byte)0;
i = 0;
byteNum++;
}
}
}
// m_log.DebugFormat("{0} ConvertLandBitmapToBytes. BitmapSize=<{1},{2}>",
// LogHeader, LandBitmap.GetLength(0), LandBitmap.GetLength(1));
return(tempConvertArr);
}
/// <summary>
/// Updates the AABBMin and AABBMax values after area/shape modification of the land object
/// </summary>
private void UpdateAABBAndAreaValues()
{
int min_x = 10000;
int min_y = 10000;
int max_x = 0;
int max_y = 0;
int tempArea = 0;
int x, y;
for (x = 0; x < LandBitmap.GetLength(0); x++)
{
for (y = 0; y < LandBitmap.GetLength(1); y++)
{
if (LandBitmap[x, y] == true)
{
if (min_x > x)
{
min_x = x;
}
if (min_y > y)
{
min_y = y;
}
if (max_x < x)
{
max_x = x;
}
if (max_y < y)
{
max_y = y;
}
tempArea += landUnit * landUnit; //16sqm peice of land
}
}
}
int tx = min_x * landUnit;
if (tx > ((int)m_scene.RegionInfo.RegionSizeX - 1))
{
tx = ((int)m_scene.RegionInfo.RegionSizeX - 1);
}
int ty = min_y * landUnit;
if (ty > ((int)m_scene.RegionInfo.RegionSizeY - 1))
{
ty = ((int)m_scene.RegionInfo.RegionSizeY - 1);
}
LandData.AABBMin =
new Vector3(
(float)(min_x * landUnit), (float)(min_y * landUnit), m_scene != null ? (float)m_scene.Heightmap[tx, ty] : 0);
tx = max_x * landUnit;
if (tx > ((int)m_scene.RegionInfo.RegionSizeX - 1))
{
tx = ((int)m_scene.RegionInfo.RegionSizeX - 1);
}
ty = max_y * landUnit;
if (ty > ((int)m_scene.RegionInfo.RegionSizeY - 1))
{
ty = ((int)m_scene.RegionInfo.RegionSizeY - 1);
}
LandData.AABBMax
= new Vector3(
(float)(max_x * landUnit), (float)(max_y * landUnit), m_scene != null ? (float)m_scene.Heightmap[tx, ty] : 0);
LandData.Area = tempArea;
}
