f5d59fab22
The current tilesets only use only ~3% of the available sheet space, so a future patch may want to look into decreasing the terrain sheet size to save some GPU memory.
95 lines
2.7 KiB
C#
95 lines
2.7 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation. For more information,
|
|
* see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Drawing;
|
|
using OpenRA.FileFormats;
|
|
using OpenRA.FileFormats.Graphics;
|
|
using OpenRA.Traits;
|
|
|
|
namespace OpenRA.Graphics
|
|
{
|
|
class TerrainRenderer
|
|
{
|
|
SheetBuilder sheetBuilder;
|
|
IVertexBuffer<Vertex> vertexBuffer;
|
|
|
|
World world;
|
|
Map map;
|
|
|
|
public TerrainRenderer(World world, WorldRenderer wr)
|
|
{
|
|
this.world = world;
|
|
this.map = world.Map;
|
|
|
|
// TODO: Use a fixed sheet size specified in the tileset yaml
|
|
sheetBuilder = new SheetBuilder(SheetType.Indexed);
|
|
var tileSize = new Size(Game.CellSize, Game.CellSize);
|
|
var tileMapping = new Cache<TileReference<ushort,byte>, Sprite>(
|
|
x => sheetBuilder.Add(world.TileSet.GetBytes(x), tileSize, false));
|
|
|
|
var terrainPalette = wr.Palette("terrain").Index;
|
|
var vertices = new Vertex[4 * map.Bounds.Height * map.Bounds.Width];
|
|
int nv = 0;
|
|
|
|
for (var j = map.Bounds.Top; j < map.Bounds.Bottom; j++)
|
|
for (var i = map.Bounds.Left; i < map.Bounds.Right; i++)
|
|
{
|
|
var tile = tileMapping[map.MapTiles.Value[i, j]];
|
|
Util.FastCreateQuad(vertices, Game.CellSize * new float2(i, j), tile, terrainPalette, nv, tile.size);
|
|
nv += 4;
|
|
}
|
|
|
|
vertexBuffer = Game.Renderer.Device.CreateVertexBuffer(vertices.Length);
|
|
vertexBuffer.SetData(vertices, nv);
|
|
}
|
|
|
|
public void Draw(WorldRenderer wr, Viewport viewport)
|
|
{
|
|
int verticesPerRow = 4*map.Bounds.Width;
|
|
|
|
int visibleRows = (int)(viewport.Height * 1f / Game.CellSize / viewport.Zoom + 2);
|
|
|
|
int firstRow = (int)(viewport.Location.Y * 1f / Game.CellSize - map.Bounds.Top);
|
|
int lastRow = firstRow + visibleRows;
|
|
|
|
if (lastRow < 0 || firstRow > map.Bounds.Height)
|
|
return;
|
|
|
|
if (world.VisibleBounds.HasValue)
|
|
{
|
|
var r = world.VisibleBounds.Value;
|
|
if (firstRow < r.Top - map.Bounds.Top)
|
|
firstRow = r.Top - map.Bounds.Top;
|
|
|
|
if (firstRow > r.Bottom - map.Bounds.Top)
|
|
firstRow = r.Bottom - map.Bounds.Top;
|
|
}
|
|
|
|
// Sanity checking
|
|
if (firstRow < 0)
|
|
firstRow = 0;
|
|
|
|
if (lastRow > map.Bounds.Height)
|
|
lastRow = map.Bounds.Height;
|
|
|
|
if (lastRow < firstRow)
|
|
lastRow = firstRow;
|
|
|
|
Game.Renderer.WorldSpriteRenderer.DrawVertexBuffer(
|
|
vertexBuffer, verticesPerRow * firstRow, verticesPerRow * (lastRow - firstRow),
|
|
PrimitiveType.QuadList, sheetBuilder.Current);
|
|
|
|
foreach (var r in world.WorldActor.TraitsImplementing<IRenderOverlay>())
|
|
r.Render(wr);
|
|
}
|
|
}
|
|
}
|