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Introduce ScreenMap trait for caching screen-coord queries.

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This commit is contained in:
Paul Chote
2013-09-21 13:39:39 +12:00
parent cad46e43c5
commit dfd51c0caa
24 changed files with 281 additions and 96 deletions
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40
OpenRA.Game/Traits/Player/FrozenActorLayer.cs
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@@ -20,10 +20,7 @@ namespace OpenRA.Traits
{
public class FrozenActorLayerInfo : ITraitInfo
{
[Desc("Size of partition bins (screen pixels)")]
public readonly int BinSize = 250;
public object Create(ActorInitializer init) { return new FrozenActorLayer(init.world, this); }
public object Create(ActorInitializer init) { return new FrozenActorLayer(init.self); }
}
public class FrozenActor
@@ -98,34 +95,21 @@ namespace OpenRA.Traits
[Sync] public int VisibilityHash;
[Sync] public int FrozenHash;
readonly FrozenActorLayerInfo info;
readonly World world;
readonly Player owner;
Dictionary<uint, FrozenActor> frozen;
List<FrozenActor>[,] bins;
public FrozenActorLayer(World world, FrozenActorLayerInfo info)
public FrozenActorLayer(Actor self)
{
this.info = info;
world = self.World;
owner = self.Owner;
frozen = new Dictionary<uint, FrozenActor>();
bins = new List<FrozenActor>[
world.Map.MapSize.X * Game.CellSize / info.BinSize,
world.Map.MapSize.Y * Game.CellSize / info.BinSize];
for (var j = 0; j <= bins.GetUpperBound(1); j++)
for (var i = 0; i <= bins.GetUpperBound(0); i++)
bins[i, j] = new List<FrozenActor>();
}
public void Add(FrozenActor fa)
{
frozen.Add(fa.ID, fa);
var top = (int)Math.Max(0, fa.Bounds.Top / info.BinSize);
var left = (int)Math.Max(0, fa.Bounds.Left / info.BinSize);
var bottom = (int)Math.Min(bins.GetUpperBound(1), fa.Bounds.Bottom / info.BinSize);
var right = (int)Math.Min(bins.GetUpperBound(0), fa.Bounds.Right / info.BinSize);
for (var j = top; j <= bottom; j++)
for (var i = left; i <= right; i++)
bins[i, j].Add(fa);
world.ScreenMap.Add(owner, fa);
}
public void Tick(Actor self)
@@ -148,8 +132,7 @@ namespace OpenRA.Traits
foreach (var r in remove)
{
foreach (var bin in bins)
bin.Remove(frozen[r]);
world.ScreenMap.Remove(owner, frozen[r]);
frozen.Remove(r);
}
}
@@ -161,13 +144,6 @@ namespace OpenRA.Traits
.SelectMany(ff => ff.Render(wr));
}
public IEnumerable<FrozenActor> FrozenActorsAt(int2 pxPos)
{
var x = (pxPos.X / info.BinSize).Clamp(0, bins.GetUpperBound(0));
var y = (pxPos.Y / info.BinSize).Clamp(0, bins.GetUpperBound(1));
return bins[x, y].Where(p => p.Bounds.Contains(pxPos) && p.IsValid);
}
public FrozenActor FromID(uint id)
{
FrozenActor ret;