/// <summary> Updates the underlying atlas bitmap, fields, and texture. </summary>
public void UpdateState(BlockInfo info, Bitmap bmp)
{
if (!FastBitmap.CheckFormat(bmp.PixelFormat))
{
Utils.LogDebug("Converting terrain atlas to 32bpp image");
drawer.ConvertTo32Bpp(ref bmp);
}
AtlasBitmap = bmp;
elementSize = bmp.Width >> 4;
using (FastBitmap fastBmp = new FastBitmap(bmp, true)) {
info.RecalculateSpriteBB(fastBmp);
TexId = graphics.CreateTexture(fastBmp);
}
}
/// <summary> Creates a 2D texture with origin at the specified window coordinates. </summary>
public Texture Make2DTexture(Bitmap bmp, Size used, int windowX, int windowY)
{
int texId = graphics.CreateTexture(bmp, true);
return(new Texture(texId, windowX, windowY, used.Width, used.Height,
(float)used.Width / bmp.Width, (float)used.Height / bmp.Height));
}
static void CheckShadowTexture(IGraphicsApi graphics)
{
if (shadowTex != -1)
{
return;
}
const int size = 128, half = size / 2;
using (Bitmap bmp = Platform.CreateBmp(size, size))
using (FastBitmap fastBmp = new FastBitmap(bmp, true, false))
{
int inPix = new FastColour(0, 0, 0, 200).ToArgb();
int outPix = new FastColour(0, 0, 0, 0).ToArgb();
for (int y = 0; y < fastBmp.Height; y++)
{
int *row = fastBmp.GetRowPtr(y);
for (int x = 0; x < fastBmp.Width; x++)
{
double dist = (half - (x + 0.5)) * (half - (x + 0.5)) +
(half - (y + 0.5)) * (half - (y + 0.5));
row[x] = dist < half * half ? inPix : outPix;
}
}
shadowTex = graphics.CreateTexture(fastBmp, true);
}
}
/// <summary> Creates a new texture that contains the tile at the specified index. </summary>
public int LoadTextureElement(int index)
{
int size = TileSize;
using (FastBitmap atlas = new FastBitmap(AtlasBitmap, true, true))
using (Bitmap bmp = Platform.CreateBmp(size, size))
using (FastBitmap dst = new FastBitmap(bmp, true, false))
{
int x = index % TilesPerRow, y = index / TilesPerRow;
FastBitmap.MovePortion(x * size, y * size, 0, 0, atlas, dst, size);
return(gfx.CreateTexture(dst, true));
}
}
/// <summary> Creates a new texture that contains the tile at the specified index. </summary>
public int LoadTextureElement(int index)
{
int size = elementSize;
using (FastBitmap atlas = new FastBitmap(AtlasBitmap, true, true))
using (Bitmap bmp = new Bitmap(size, size))
using (FastBitmap dst = new FastBitmap(bmp, true, false))
{
FastBitmap.MovePortion((index & 0x0F) * size, (index >> 4) *
size, 0, 0, atlas, dst, size);
return(graphics.CreateTexture(dst));
}
}
void Make1DTexture(int i, FastBitmap atlas, TerrainAtlas2D atlas2D, int atlas1DHeight, ref int index)
{
int elemSize = atlas2D.elementSize;
using (Bitmap atlas1d = new Bitmap(atlas2D.elementSize, atlas1DHeight))
using (FastBitmap dst = new FastBitmap(atlas1d, true, false))
{
for (int index1D = 0; index1D < elementsPerAtlas1D; index1D++)
{
FastBitmap.MovePortion((index & 0x0F) * elemSize, (index >> 4) * elemSize,
0, index1D * elemSize, atlas, dst, elemSize);
index++;
}
TexIds[i] = graphics.CreateTexture(dst);
}
}
static void CheckShadowTexture( IGraphicsApi graphics )
{
if( shadowTex != -1 ) return;
const int size = 128, half = size / 2;
using( Bitmap bmp = new Bitmap( size, size ) )
using( FastBitmap fastBmp = new FastBitmap( bmp, true, false ) )
{
int inPix = new FastColour( 0, 0, 0, 200 ).ToArgb();
int outPix = new FastColour( 0, 0, 0, 0 ).ToArgb();
for( int y = 0; y < fastBmp.Height; y++ ) {
int* row = fastBmp.GetRowPtr( y );
for( int x = 0; x < fastBmp.Width; x++ ) {
double dist = (half - (x + 0.5)) * (half - (x + 0.5)) +
(half - (y + 0.5)) * (half - (y + 0.5));
row[x] = dist < half * half ? inPix : outPix;
}
}
shadowTex = graphics.CreateTexture( fastBmp );
}
}
