//splatting only
public int newSplatLayer(int activeTextureIndex)
{
if (mLayers.Count > 0 &&
mLayers[mLayers.Count - 1].mActiveTextureIndex == activeTextureIndex &&
mLayers[mLayers.Count - 1].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
return(mLayers.Count - 1);
}
BTerrainPerVertexLayerData vld = new BTerrainPerVertexLayerData();
vld.mLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
vld.mActiveTextureIndex = activeTextureIndex;
vld.mAlphaContrib = 0;
//find where we should be inserted
for (int i = 0; i < mLayers.Count; i++)
{
if (mLayers[i].mActiveTextureIndex > activeTextureIndex)
{
mLayers.Insert(i, vld);
return(i);
}
}
//we didn't find a spot.
mLayers.Add(vld);
return(mLayers.Count - 1);
}
public void copyTo(BTerrainTextureVector target)
{
target.mLayers.Clear();
for (int i = 0; i < mLayers.Count; i++)
{
BTerrainPerVertexLayerData vld = new BTerrainPerVertexLayerData();
vld.mActiveTextureIndex = mLayers[i].mActiveTextureIndex;
vld.mAlphaContrib = mLayers[i].mAlphaContrib;
vld.mLayerType = mLayers[i].mLayerType;
target.mLayers.Add(vld);
}
}
//decals
public int newDecalLayer(int activeDecalInstanceIndex)
{
if (mLayers.Count > 0 &&
mLayers[mLayers.Count - 1].mActiveTextureIndex == activeDecalInstanceIndex &&
mLayers[mLayers.Count - 1].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Decal)
{
return(mLayers.Count - 1);
}
BTerrainPerVertexLayerData vld = new BTerrainPerVertexLayerData();
vld.mLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Decal;
vld.mActiveTextureIndex = activeDecalInstanceIndex;
vld.mAlphaContrib = 255;
mLayers.Add(vld);
return(mLayers.Count - 1);
}
//used for clipart
public BTerrainTextureVector giveLayerChainAtPixel(int x, int z)
{
BTerrainTextureVector v = new BTerrainTextureVector();
if (x < 0 || z < 0 || x >= BTerrainTexturing.getAlphaTextureWidth() || z >= BTerrainTexturing.getAlphaTextureHeight())
{
return(v);
}
for (int i = 0; i < mLayers.Count; i++)
{
BTerrainPerVertexLayerData layer = new BTerrainPerVertexLayerData();
layer.mActiveTextureIndex = mLayers[i].mActiveTextureIndex;
layer.mLayerType = mLayers[i].mLayerType;
layer.mAlphaContrib = mLayers[i].mAlphaLayer[x + BTerrainTexturing.getAlphaTextureWidth() * z];
v.mLayers.Add(layer);
}
return(v);
}