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Add MinRange support to AffectsShroud.

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This commit is contained in:
Paul Chote
2019-12-10 22:01:00 +00:00
committed by abcdefg30
parent 5830d4de6c
commit 04bad1ae66
3 changed files with 16 additions and 11 deletions
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14
OpenRA.Game/Traits/Player/Shroud.cs
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@@ -186,20 +186,22 @@ namespace OpenRA.Traits
Hash += 1;
}
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, WPos pos, WDist range, int maxHeightDelta = -1)
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, WPos pos, WDist minRange, WDist maxRange, int maxHeightDelta = -1)
{
// Account for potential extra half-cell from odd-height terrain
var r = (range.Length + 1023 + 512) / 1024;
var limit = range.LengthSquared;
var r = (maxRange.Length + 1023 + 512) / 1024;
var minLimit = minRange.LengthSquared;
var maxLimit = maxRange.LengthSquared;
// Project actor position into the shroud plane
var projectedPos = pos - new WVec(0, pos.Z, pos.Z);
var projectedCell = map.CellContaining(projectedPos);
var projectedHeight = pos.Z / 512;
foreach (var c in map.FindTilesInCircle(projectedCell, r, true))
foreach (var c in map.FindTilesInAnnulus(projectedCell, minRange.Length / 1024, r, true))
{
if ((map.CenterOfCell(c) - projectedPos).HorizontalLengthSquared <= limit)
var dist = (map.CenterOfCell(c) - projectedPos).HorizontalLengthSquared;
if (dist <= maxLimit && (dist == 0 || dist > minLimit))
{
var puv = (PPos)c.ToMPos(map);
if (maxHeightDelta < 0 || map.ProjectedHeight(puv) < projectedHeight + maxHeightDelta)
@@ -210,7 +212,7 @@ namespace OpenRA.Traits
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, CPos cell, WDist range, int maxHeightDelta = -1)
{
return ProjectedCellsInRange(map, map.CenterOfCell(cell), range, maxHeightDelta);
return ProjectedCellsInRange(map, map.CenterOfCell(cell), WDist.Zero, range, maxHeightDelta);
}
public void AddSource(object key, SourceType type, PPos[] projectedCells)

2
OpenRA.Mods.Common/Effects/RevealShroudEffect.cs
View File

@@ -52,7 +52,7 @@ namespace OpenRA.Mods.Common.Effects
if (range == WDist.Zero)
return NoCells;
return Shroud.ProjectedCellsInRange(map, pos, range)
return Shroud.ProjectedCellsInRange(map, pos, WDist.Zero, range)
.ToArray();
}

11
OpenRA.Mods.Common/Traits/AffectsShroud.cs
View File

@@ -17,6 +17,8 @@ namespace OpenRA.Mods.Common.Traits
{
public abstract class AffectsShroudInfo : ConditionalTraitInfo
{
public readonly WDist MinRange = WDist.Zero;
public readonly WDist Range = WDist.Zero;
[Desc("If >= 0, prevent cells that are this much higher than the actor from being revealed.")]
@@ -61,15 +63,16 @@ namespace OpenRA.Mods.Common.Traits
PPos[] ProjectedCells(Actor self)
{
var map = self.World.Map;
var range = Range;
if (range == WDist.Zero)
var minRange = Info.MinRange;
var maxRange = Range;
if (maxRange <= minRange)
return NoCells;
if (Info.Type == VisibilityType.Footprint)
{
// PERF: Reuse collection to avoid allocations.
footprint.UnionWith(self.OccupiesSpace.OccupiedCells()
.SelectMany(kv => Shroud.ProjectedCellsInRange(map, kv.First, range, Info.MaxHeightDelta)));
.SelectMany(kv => Shroud.ProjectedCellsInRange(map, map.CenterOfCell(kv.First), minRange, maxRange, Info.MaxHeightDelta)));
var cells = footprint.ToArray();
footprint.Clear();
return cells;
@@ -79,7 +82,7 @@ namespace OpenRA.Mods.Common.Traits
if (Info.Type == VisibilityType.GroundPosition)
pos -= new WVec(WDist.Zero, WDist.Zero, self.World.Map.DistanceAboveTerrain(pos));
return Shroud.ProjectedCellsInRange(map, pos, range, Info.MaxHeightDelta)
return Shroud.ProjectedCellsInRange(map, pos, minRange, maxRange, Info.MaxHeightDelta)
.ToArray();
}