Exemple #1
0
        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();
        }