public CarMesh(MeshChunk meshChunk, BitmapChunk bmpChunk, Color brakeColor)
: base(meshChunk, bmpChunk)
{
foreach (var poly in _polys)
{
switch (poly.Label)
{
case "rt_rear":
_rightRearWheel = poly;
break;
case "lt_rear":
_leftRearWheel = poly;
break;
case "rt_frnt":
_rightFrontWheel = poly;
break;
case "lt_frnt":
_leftFrontWheel = poly;
break;
case "bkll":
_leftBrakeLight = poly;
break;
case "bklr":
_rightBrakeLight = poly;
break;
}
}
var tyreEntry = bmpChunk.FindByName("tyr1");
if (tyreEntry != null)
_wheelTexture = tyreEntry.Texture;
// This seems like it should be done in a shader but I couldn't get it to work well enough
// (dealing with original paletted colors doesn't work so well in a texture stretched over a polygon)
var rsidPoly = _polys.FirstOrDefault(a => a.TextureName == "rsid");
if (rsidPoly != null)
{
// Generate a new texture for brake lights on.
Color[] pixels = new Color[rsidPoly.Texture.Width * rsidPoly.Texture.Height];
rsidPoly.Texture.GetData<Color>(pixels);
for (int i = 0; i < pixels.Length; i++)
{
if (pixels[i] == brakeColor)
pixels[i] = BrakeOnColor;
}
_brakeOnTexture = new Texture2D(Engine.Instance.Device, rsidPoly.Texture.Width, rsidPoly.Texture.Height);
_brakeOnTexture.SetData<Color>(pixels);
// Generate a new texture for brake lights off.
for (int i = 0; i < pixels.Length; i++)
{
if (pixels[i] == BrakeOnColor)
pixels[i] = BrakeOffColor;
}
_brakeOffTexture = new Texture2D(Engine.Instance.Device, _leftBrakeLight.Texture.Width, _leftBrakeLight.Texture.Height);
_brakeOffTexture.SetData<Color>(pixels);
}
}
public void Resolve(BitmapChunk bitmapChunk)
{
if (_vertexBuffer != null)
return; //already resolved
int vertCount = 0;
List<VertexPositionTexture> allVerts = new List<VertexPositionTexture>();
foreach (Polygon poly in _polys)
{
if (poly.TextureName != null)
{
poly.ResolveTexture(bitmapChunk.FindByName(poly.TextureName));
}
poly.VertexBufferIndex = vertCount;
vertCount += poly.VertexCount;
allVerts.AddRange(poly.GetVertices());
}
_vertexBuffer = new VertexBuffer(Engine.Instance.Device, typeof(VertexPositionTexture), vertCount, BufferUsage.WriteOnly);
_vertexBuffer.SetData<VertexPositionTexture>(allVerts.ToArray());
}