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Add a helper for finding the map edge in a given direction.

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Paul Chote
2013-10-31 21:29:50 +13:00
parent 5722d2226a
commit 212f07f890
1 changed files with 9 additions and 0 deletions
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9
OpenRA.Game/WorldUtils.cs
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@@ -124,6 +124,15 @@ namespace OpenRA
r.Next(w.Map.Bounds.Top, w.Map.Bounds.Bottom));
}
public static WPos FindMapEdge(this World w, WPos pos, WVec dir)
{
var tl = w.Map.Bounds.TopLeftAsCPos().TopLeft;
var br = w.Map.Bounds.BottomRightAsCPos().BottomRight;
var x = dir.X == 0 ? int.MaxValue : ((dir.X < 0 ? tl.X : br.X) - pos.X) / dir.X;
var y = dir.Y == 0 ? int.MaxValue : ((dir.Y < 0 ? tl.Y : br.Y) - pos.Y) / dir.Y;
return pos + Math.Min(x, y) * dir;
}
public static bool HasVoices(this Actor a)
{
var selectable = a.Info.Traits.GetOrDefault<SelectableInfo>();