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Reorganize shroud cell queries.

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This is in preparation for a future PR that will
remove GetVisOrigins.
This commit is contained in:
Paul Chote
2015-06-13 20:53:39 +01:00
parent 01dc7edbe9
commit 7d8ee64ce5
3 changed files with 34 additions and 20 deletions
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29
OpenRA.Game/Traits/World/Shroud.cs
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@@ -72,21 +72,20 @@ namespace OpenRA.Traits
Hash += 1;
}
static CPos[] FindVisibleTiles(Actor actor, WRange range)
public static IEnumerable<CPos> CellsInRange(Map map, WPos pos, WRange range)
{
return GetVisOrigins(actor).SelectMany(o => FindVisibleTiles(actor.World, o, range)).Distinct().ToArray();
var r = (range.Range + 1023) / 1024;
var limit = range.RangeSquared;
var cell = map.CellContaining(pos);
foreach (var c in map.FindTilesInCircle(cell, r, true))
if ((map.CenterOfCell(c) - pos).HorizontalLengthSquared <= limit)
yield return c;
}
public static IEnumerable<CPos> FindVisibleTiles(World world, CPos position, WRange radius)
public static IEnumerable<CPos> CellsInRange(Map map, CPos cell, WRange range)
{
var map = world.Map;
var r = (radius.Range + 1023) / 1024;
var limit = radius.RangeSquared;
var pos = map.CenterOfCell(position);
foreach (var cell in map.FindTilesInCircle(position, r, true))
if ((map.CenterOfCell(cell) - pos).HorizontalLengthSquared <= limit)
yield return cell;
return CellsInRange(map, map.CenterOfCell(cell), range);
}
public void AddVisibility(Actor a, CPos[] visible)
@@ -184,6 +183,8 @@ namespace OpenRA.Traits
}
}
// TODO: Actor vis will be split into separate cases for
// "cells that I reveal from" and "cells that reveal me"
public static IEnumerable<CPos> GetVisOrigins(Actor a)
{
var ios = a.OccupiesSpace;
@@ -197,10 +198,10 @@ namespace OpenRA.Traits
return new[] { a.World.Map.CellContaining(a.CenterPosition) };
}
public void Explore(World world, CPos center, WRange range)
public void Explore(World world, IEnumerable<CPos> cells)
{
var changed = new List<CPos>();
foreach (var c in FindVisibleTiles(world, center, range))
var changed = new HashSet<CPos>();
foreach (var c in cells)
{
if (!explored[c])
{