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Track actor positions in ActorMap.

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This commit is contained in:
Paul Chote
2013-09-21 16:06:39 +12:00
parent b00cc6108d
commit e03ec690ff
8 changed files with 64 additions and 8 deletions
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44
OpenRA.Game/Traits/World/ActorMap.cs
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@@ -10,15 +10,19 @@
using System.Collections.Generic;
using System.Linq;
using OpenRA.FileFormats;
using OpenRA.Traits;
namespace OpenRA.Traits
{
public enum SubCell { FullCell, TopLeft, TopRight, Center, BottomLeft, BottomRight }
class ActorMapInfo : ITraitInfo
public class ActorMapInfo : ITraitInfo
{
public object Create(ActorInitializer init) { return new ActorMap(init.world); }
[Desc("Size of partition bins (cells)")]
public readonly int BinSize = 10;
public object Create(ActorInitializer init) { return new ActorMap(init.world, this); }
}
public class ActorMap
@@ -30,13 +34,25 @@ namespace OpenRA.Traits
public Actor actor;
}
readonly ActorMapInfo info;
readonly Map map;
InfluenceNode[,] influence;
Map map;
public ActorMap(World world)
List<Actor>[] actors;
int rows, cols;
public ActorMap(World world, ActorMapInfo info)
{
this.info = info;
map = world.Map;
influence = new InfluenceNode[world.Map.MapSize.X, world.Map.MapSize.Y];
cols = world.Map.MapSize.X / info.BinSize + 1;
rows = world.Map.MapSize.Y / info.BinSize + 1;
actors = new List<Actor>[rows * cols];
for (var j = 0; j < rows; j++)
for (var i = 0; i < cols; i++)
actors[j * cols + i] = new List<Actor>();
}
public IEnumerable<Actor> GetUnitsAt(CPos a)
@@ -114,5 +130,25 @@ namespace OpenRA.Traits
if (influenceNode != null)
RemoveInfluenceInner(ref influenceNode.next, toRemove);
}
public void AddPosition(Actor a, IOccupySpace ios)
{
var pos = ios.CenterPosition;
var i = (pos.X / info.BinSize).Clamp(0, cols - 1);
var j = (pos.Y / info.BinSize).Clamp(0, rows - 1);
actors[j*cols + i].Add(a);
}
public void RemovePosition(Actor a, IOccupySpace ios)
{
foreach (var bin in actors)
bin.Remove(a);
}
public void UpdatePosition(Actor a, IOccupySpace ios)
{
RemovePosition(a, ios);
AddPosition(a, ios);
}
}
}