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Block actor sight above cliffs.

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This commit is contained in:
Paul Chote
2016-11-11 16:53:38 +00:00
parent b6809c97f2
commit d68c705512
11 changed files with 68 additions and 6 deletions
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15
OpenRA.Game/Traits/World/Shroud.cs
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@@ -115,7 +115,7 @@ namespace OpenRA.Traits
Hash += 1;
}
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, WPos pos, WDist range)
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, WPos pos, WDist range, int maxHeightDelta = -1)
{
// Account for potential extra half-cell from odd-height terrain
var r = (range.Length + 1023 + 512) / 1024;
@@ -124,15 +124,22 @@ namespace OpenRA.Traits
// 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))
{
if ((map.CenterOfCell(c) - projectedPos).HorizontalLengthSquared <= limit)
yield return (PPos)c.ToMPos(map);
{
var puv = (PPos)c.ToMPos(map);
if (maxHeightDelta < 0 || map.ProjectedHeight(puv) < projectedHeight + maxHeightDelta)
yield return puv;
}
}
}
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, CPos cell, WDist range)
public static IEnumerable<PPos> ProjectedCellsInRange(Map map, CPos cell, WDist range, int maxHeightDelta = -1)
{
return ProjectedCellsInRange(map, map.CenterOfCell(cell), range);
return ProjectedCellsInRange(map, map.CenterOfCell(cell), range, maxHeightDelta);
}
public void AddProjectedVisibility(object key, PPos[] visible)