public void Draw(Vector3[] activeChunks, Player player)
{
Vector3 chunkMax = new Vector3(size, 128, size);
Vector3 position;
float lightIntensity = time.LightIntensity;
bool[] chunkVisible = new bool[activeChunks.Length];
effect.Parameters["World"].SetValue(Matrix.Identity);
effect.Parameters["View"].SetValue(player.Camera.View);
effect.Parameters["Projection"].SetValue(player.Camera.Projection);
effect.Parameters["Texture"].SetValue(atlas);
effect.Parameters["LightIntensity"].SetValue(lightIntensity);
if (!game.Paused)
{
time.Update();
}
graphics.Clear(Color.Lerp(Color.SkyBlue, Color.Black, 1f - lightIntensity));
//Drawing opaque blocks
for (int i = 0; i < activeChunks.Length; i++)
{
position = activeChunks[i];
currentChunk = region[position];
BoundingBox chunkBounds = new BoundingBox(-position, chunkMax - position);
chunkVisible[i] = player.Camera.Frustum.Contains(chunkBounds) != ContainmentType.Disjoint;
if (chunkVisible[i] && currentChunk.VertexCount > 0)
{
effect.Parameters["Alpha"].SetValue(1f);
buffer.SetData(currentChunk.Vertices);
graphics.SetVertexBuffer(buffer);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
graphics.DrawPrimitives(PrimitiveType.TriangleList, 0, currentChunk.VertexCount / 3);
}
}
}
//Drawing transparent blocks
for (int i = 0; i < activeChunks.Length; i++)
{
currentChunk = region[activeChunks[i]];
if (chunkVisible[i] && currentChunk.TransparentVertexCount > 0)
{
effect.Parameters["Alpha"].SetValue(0.7f);
buffer.SetData(currentChunk.TransparentVertices);
graphics.SetVertexBuffer(buffer);
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Apply();
graphics.DrawPrimitives(PrimitiveType.TriangleList, 0, currentChunk.TransparentVertexCount / 3);
}
}
}
if (screenshotHandler.TakeScreenshot)
{
screenshotHandler.Screenshot(DateTime.Now.ToString());
}
blockSelector.Draw();
}