unsafe void updateVisualHandle(ref CameraHeightVisualData handle, int minX, int minZ)
{
if (handle == null)
{
return;
}
int width = (int)(mNumXVertsPerCell + 1);
GraphicsStream stream = handle.mVB.Lock(0, handle.mNumVerts * sizeof(VertexTypes.Pos_Color), LockFlags.None);
VertexTypes.Pos_Color *verts = (VertexTypes.Pos_Color *)stream.InternalDataPointer;
uint obsCol = 0x440000FF;
//generate each tile as a seperate triList
int counter = 0;
for (int x = 0; x < width; x++)
{
for (int z = 0; z < width; z++)
{
int offX = (int)BMathLib.Clamp(minX + x, 0, mWidth - 1);
int offZ = (int)BMathLib.Clamp(minZ + z, 0, mHeight - 1);
float3 wsp = new float3(offX * mTileScale, getCompositeHeight(offX, offZ), offZ * mTileScale);
verts[counter].x = wsp.X;
verts[counter].y = wsp.Y + cVisualHeightOffset;
verts[counter].z = wsp.Z;
verts[counter].color = (int)obsCol;
counter++;
}
}
handle.mVB.Unlock();
}
void renderCell(CameraHeightVisualData handle)
{
BRenderDevice.getDevice().VertexDeclaration = VertexTypes.Pos_Color.vertDecl;
BRenderDevice.getDevice().VertexFormat = VertexTypes.Pos_Color.FVF_Flags;
BRenderDevice.getDevice().VertexShader = null;
BRenderDevice.getDevice().PixelShader = null;
BRenderDevice.getDevice().SetTexture(0, null);
BRenderDevice.getDevice().SetStreamSource(0, handle.mVB, 0);
BRenderDevice.getDevice().Indices = handle.mIB;
BRenderDevice.getDevice().RenderState.CullMode = Cull.None;
BRenderDevice.getDevice().SetRenderState(RenderStates.ZBufferWriteEnable, false);
BRenderDevice.getDevice().SetRenderState(RenderStates.FillMode, (int)FillMode.WireFrame);
//BRenderDevice.getDevice().DrawPrimitives(PrimitiveType.TriangleList, 0, handle.mNumPrims);
BRenderDevice.getDevice().DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, handle.mNumVerts, 0, handle.mNumPrims);
BRenderDevice.getDevice().SetRenderState(RenderStates.FillMode, (int)FillMode.Solid);
BRenderDevice.getDevice().SetRenderState(RenderStates.AlphaTestEnable, false);
BRenderDevice.getDevice().SetRenderState(RenderStates.SourceBlend, (int)Blend.SourceAlpha);
BRenderDevice.getDevice().SetRenderState(RenderStates.DestinationBlend, (int)Blend.InvSourceAlpha);
BRenderDevice.getDevice().SetRenderState(RenderStates.AlphaBlendEnable, true);
//BRenderDevice.getDevice().DrawPrimitives(PrimitiveType.TriangleList, 0, handle.mNumPrims);
BRenderDevice.getDevice().DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, handle.mNumVerts, 0, handle.mNumPrims);
BRenderDevice.getDevice().SetRenderState(RenderStates.AlphaBlendEnable, false);
BRenderDevice.getDevice().SetRenderState(RenderStates.ZBufferWriteEnable, true);
BRenderDevice.getDevice().RenderState.CullMode = Cull.CounterClockwise;
}
public void destroy()
{
if (mVisualHandle != null)
{
mVisualHandle.destroy();
mVisualHandle = null;
}
}
unsafe CameraHeightVisualData newVisualHandle(int minX, int minZ)
{
int width = (int)mNumXVertsPerCell;
int vd = width + 1;
int tw = width;
int td = width;
CameraHeightVisualData svd = new CameraHeightVisualData();
svd.mNumVerts = vd * vd;
svd.mVB = new VertexBuffer(typeof(VertexTypes.Pos_Color), (int)svd.mNumVerts, BRenderDevice.getDevice(), Usage.None, VertexTypes.Pos_Color.FVF_Flags, Pool.Managed);
//standard IB
svd.mNumPrims = vd * vd * 2;
svd.mIB = new IndexBuffer(typeof(int), svd.mNumPrims * 3, BRenderDevice.getDevice(), Usage.None, Pool.Managed);
GraphicsStream stream = svd.mIB.Lock(0, 0, LockFlags.None);
int * inds = (int *)stream.InternalDataPointer;
//fill our intex buffer
int counter = 0;
for (int z = 0; z < td; z++)
{
for (int x = 0; x < tw; x++)
{
int k = (x + (z * vd));
inds[counter++] = (k);
inds[counter++] = (k + vd);
inds[counter++] = (k + 1);
inds[counter++] = (k + 1);
inds[counter++] = (k + vd);
inds[counter++] = (k + vd + 1);
}
}
svd.mIB.Unlock();
//update and fill our vertex buffer
updateVisualHandle(ref svd, minX, minZ);
return(svd);
}
