epic/OpenRA
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Speed up frozen actor visibility updates.

Browse Source 
Cache the isVisibleTest function in the ctor for FrozenActor. The footprint never changes so the test will always be valid.
This commit is contained in:
RoosterDragon
2015-03-25 20:48:10 +00:00
parent cedfe5c0b5
commit 3885ca3f14
1 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
OpenRA.Game/Traits/Player/FrozenActorLayer.cs
View File

@@ -8,6 +8,7 @@
*/
#endregion
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
@@ -24,10 +25,10 @@ namespace OpenRA.Traits
public class FrozenActor
{
public readonly MPos[] Footprint;
public readonly CellRegion FootprintRegion;
public readonly WPos CenterPosition;
public readonly Rectangle Bounds;
readonly Actor actor;
readonly Func<MPos, bool> isVisibleTest;
public Player Owner;
@@ -44,13 +45,13 @@ namespace OpenRA.Traits
public FrozenActor(Actor self, MPos[] footprint, CellRegion footprintRegion, Shroud shroud)
{
actor = self;
Footprint = footprint;
FootprintRegion = footprintRegion;
isVisibleTest = shroud.IsVisibleTest(footprintRegion);
Footprint = footprint;
CenterPosition = self.CenterPosition;
Bounds = self.Bounds;
UpdateVisibility(shroud);
UpdateVisibility();
}
public uint ID { get { return actor.ActorID; } }
@@ -64,21 +65,20 @@ namespace OpenRA.Traits
IRenderable[] renderables = NoRenderables;
bool needRenderables;
public void Tick(Shroud shroud)
public void Tick()
{
UpdateVisibility(shroud);
UpdateVisibility();
if (flashTicks > 0)
flashTicks--;
}
void UpdateVisibility(Shroud shroud)
void UpdateVisibility()
{
var wasVisible = Visible;
// We are doing the following LINQ manually to avoid allocating an extra delegate since this is a hot path.
// Visible = !Footprint.Any(shroud.IsVisibleTest(FootprintRegion));
var isVisibleTest = shroud.IsVisibleTest(FootprintRegion);
// We are doing the following LINQ manually for performance since this is a hot path.
// Visible = !Footprint.Any(isVisibleTest);
Visible = true;
foreach (var uv in Footprint)
if (isVisibleTest(uv))
@@ -161,7 +161,7 @@ namespace OpenRA.Traits
FrozenHash += hash;
var frozenActor = kvp.Value;
frozenActor.Tick(self.Owner.Shroud);
frozenActor.Tick();
if (frozenActor.Visible)
VisibilityHash += hash;