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Clean up viewport internals.

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This commit is contained in:
Paul Chote
2013-09-28 10:21:23 +12:00
parent 936bf98496
commit 919181e04d
13 changed files with 153 additions and 207 deletions
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30
OpenRA.Game/Graphics/TerrainRenderer.cs
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@@ -46,36 +46,14 @@ namespace OpenRA.Graphics
public void Draw(WorldRenderer wr, Viewport viewport)
{
int verticesPerRow = 4*map.Bounds.Width;
int visibleRows = (int)(Game.Renderer.Resolution.Height * 1f / Game.CellSize / viewport.Zoom + 2);
int firstRow = (int)(viewport.Location.Y * 1f / Game.CellSize - map.Bounds.Top);
int lastRow = firstRow + visibleRows;
var verticesPerRow = 4*map.Bounds.Width;
var bounds = viewport.CellBounds;
var firstRow = bounds.Top - map.Bounds.Top;
var lastRow = bounds.Bottom - map.Bounds.Top;
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, wr.Theater.Sheet);