/// <summary>
/// Setup constructor
/// </summary>
/// <param name="view">Terrain type list view</param>
/// <param name="model">Terrain type model. Can be null</param>
/// <exception cref="System.ArgumentNullException">Thrown if view is null</exception>
public TerrainTypeListController( TerrainTypeList model, ITerrainTypeListView view )
{
Arguments.CheckNotNull( view, "view" );
m_View = view;
view.AddTerrainType += OnAddTerrainType;
view.RemoveTerrainType += OnRemoveTerrainType;
Model = model;
}
/// <summary>
/// Default constructor. Creates a background thread to process new texture requests
/// </summary>
public TerrainTypeTextureBuilder( TerrainTypeList terrainTypes )
{
Arguments.CheckNotNull( terrainTypes , "terrainTypes");
m_Worker = new BackgroundWorker( );
m_Worker.DoWork += ProcessRequest;
m_Worker.RunWorkerCompleted += RequestComplete;
m_LookupTexture = RbGraphics.Factory.CreateTexture2d( );
m_PackTexture = RbGraphics.Factory.CreateTexture2d( );
TerrainTypes = terrainTypes;
}
/// <summary>
/// Builds a bitmap of the specified dimensions, using a terrain type set to colour the underlying heightmap
/// </summary>
public unsafe Bitmap Build( int width, int height, TerrainTypeList terrainTypes )
{
if ( terrainTypes.TerrainTypeCount == 0 )
{
return Build( width, height );
}
Bitmap bmp = new Bitmap( width, height, PixelFormat.Format24bppRgb );
BitmapData bmpData = bmp.LockBits( new System.Drawing.Rectangle( 0, 0, width, height ), ImageLockMode.WriteOnly, bmp.PixelFormat );
byte* rowFirstPixel = ( byte* )bmpData.Scan0;
float[,] heights = GetHeights( width, height );
float[,] lighting = GetLighting( width, height );
float[,] slopes = GetSlopes( width, height );
for ( int row = 0; row < height; ++row )
{
byte* curPixel = rowFirstPixel;
for ( int col = 0; col < width; ++col )
{
float h = heights[ col, row ];
float s = slopes[ col, row ];
float l = ApplyLighting ? lighting[ col, row ] : 1.0f;
Color c = terrainTypes.GetType( h, s ).AverageColour;
curPixel[ 0 ] = ( byte )( c.B * l );
curPixel[ 1 ] = ( byte )( c.G * l );
curPixel[ 2 ] = ( byte )( c.R * l );
curPixel += 3;
}
rowFirstPixel += bmpData.Stride;
}
bmp.UnlockBits( bmpData );
return bmp;
}
/// <summary>
/// Clones this set
/// </summary>
public TerrainTypeList Clone( )
{
TerrainTypeList clone = new TerrainTypeList( );
foreach ( TerrainType srcType in m_TerrainTypes )
{
clone.m_TerrainTypes.Add( srcType.Clone( ) );
}
return clone;
}
