git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@2049 993157c7-ee19-0410-b2c4-bb4e9862e678

2008-07-20 20:06:19 +00:00
parent 6f8919d301
commit 4ea033f63d
42 changed files with 247 additions and 198 deletions
--- a/OpenRa.Game/Graphics/TerrainRenderer.cs
+++ b/OpenRa.Game/Graphics/TerrainRenderer.cs
@@ -0,0 +1,80 @@
+using System.Drawing;
+using System.Windows.Forms;
+using Ijw.DirectX;
+using IjwFramework.Collections;
+using OpenRa.FileFormats;
+
+namespace OpenRa.Game.Graphics
+{
+	class TerrainRenderer
+	{
+		FvfVertexBuffer<Vertex> vertexBuffer;
+		IndexBuffer indexBuffer;
+		Sheet terrainSheet;
+		public TileSet tileSet;
+		Region region;
+
+		Renderer renderer;
+		Map map;
+
+		public TerrainRenderer(Renderer renderer, Map map, Viewport viewport)
+		{
+			this.renderer = renderer;
+			region = Region.Create(viewport, DockStyle.Left, viewport.Width - 128, Draw, (_, e) => { } );
+			viewport.AddRegion(region);
+			this.map = map;
+
+			tileSet = new TileSet( map.TileSuffix );
+
+            Size tileSize = new Size( 24, 24 );
+
+            var tileMapping = new Cache<TileReference, Sprite>(
+                x => SheetBuilder.Add(tileSet.GetBytes(x), tileSize));
+
+            Vertex[] vertices = new Vertex[4 * map.Height * map.Width];
+            ushort[] indices = new ushort[6 * map.Height * map.Width];
+
+            int nv = 0;
+            int ni = 0;
+			for( int j = 0 ; j < map.Height ; j++ )
+                for (int i = 0; i < map.Width; i++)
+                {
+                    Sprite tile = tileMapping[map.MapTiles[i + map.XOffset, j + map.YOffset]];
+                    Util.FastCreateQuad(vertices, indices, 24 * new float2(i, j), tile, 0, nv, ni);
+                    nv += 4;
+                    ni += 6;
+                }
+
+            terrainSheet = tileMapping[map.MapTiles[map.XOffset, map.YOffset]].sheet;
+
+			vertexBuffer = new FvfVertexBuffer<Vertex>( renderer.Device, vertices.Length, Vertex.Format );
+			vertexBuffer.SetData( vertices );
+
+			indexBuffer = new IndexBuffer( renderer.Device, indices.Length );
+			indexBuffer.SetData( indices );
+		}
+
+		void Draw()
+		{
+			int indicesPerRow = map.Width * 6;
+			int verticesPerRow = map.Width * 4;
+
+			int visibleRows = (int)(region.Size.Y / 24.0f + 2);
+
+			int firstRow = (int)(region.Location.Y / 24.0f);
+			int lastRow = firstRow + visibleRows;
+
+			if (lastRow < 0 || firstRow > map.Height)
+				return;
+
+			if (firstRow < 0) firstRow = 0;
+			if (lastRow > map.Height) lastRow = map.Height;
+
+			renderer.DrawWithShader(ShaderQuality.Low, () =>
+				renderer.DrawBatch(vertexBuffer, indexBuffer,
+					new Range<int>(verticesPerRow * firstRow, verticesPerRow * lastRow),
+					new Range<int>(indicesPerRow * firstRow, indicesPerRow * lastRow),
+					terrainSheet.Texture));
+		}
+	}
+}