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Add WVec.HorizontalLengthSquared to simplify range checks.

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This commit is contained in:
Paul Chote
2013-07-20 19:04:19 +12:00
parent 56da57bc09
commit f18994f800
3 changed files with 12 additions and 10 deletions
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14
OpenRA.Mods.RA/Air/Land.cs
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@@ -25,13 +25,19 @@ namespace OpenRA.Mods.RA.Air
if (!Target.IsValid)
Cancel(self);
if (IsCanceled) return NextActivity;
var d = Target.CenterPosition - self.CenterPosition;
if (d.LengthSquared < 256*256) // close enough (1/4 cell)
if (IsCanceled)
return NextActivity;
var aircraft = self.Trait<Aircraft>();
var d = Target.CenterPosition - self.CenterPosition;
// close enough (1/16 cell)
// TODO: TickMove may overshoot if the aircraft speed is too high
if (d.HorizontalLengthSquared < 4096)
{
aircraft.SetPxPosition(self, PPos.FromWPos(Target.CenterPosition));
return NextActivity;
}
if (aircraft.Altitude > 0)
--aircraft.Altitude;