internal static bool Apply(CameraUpdate update, NiTransform transform, NiPoint3 result)
{
init();
if (update == null || transform == null || result == null)
{
return(false);
}
if (update.Values.CollisionEnabled.CurrentValue < 0.5)
{
return(false);
}
var actor = update.Target.Actor;
var cell = actor?.ParentCell;
if (cell == null)
{
return(false);
}
var safety = (float)(update.Values.NearClip.CurrentValue + 1.0);
if (safety < 1.0f)
{
safety = 1.0f;
}
var safety2 = Math.Max(0.0f, Settings.Instance.CameraCollisionSafety);
var tpos = transform.Position;
TempPoint1.CopyFrom(actor.Position);
TempPoint1.Z = tpos.Z;
if (safety2 > 0.0f)
{
TempSafety.Y = -safety2 * 0.5f;
TempTransform.CopyFrom(transform);
TempTransform.Position.CopyFrom(TempPoint1);
TempTransform.Translate(TempSafety, TempPoint1);
}
TempNormal.X = tpos.X - TempPoint1.X;
TempNormal.Y = tpos.Y - TempPoint1.Y;
TempNormal.Z = tpos.Z - TempPoint1.Z;
var len = TempNormal.Length;
if (len <= 0.0f)
{
return(false);
}
TempNormal.Normalize(TempNormal);
TempNormal.Multiply(len + safety + safety2, TempNormal);
TempPoint2.X = TempPoint1.X + TempNormal.X;
TempPoint2.Y = TempPoint1.Y + TempNormal.Y;
TempPoint2.Z = TempPoint1.Z + TempNormal.Z;
var ls = TESObjectCELL.RayCast(new RayCastParameters
{
Cell = cell,
Begin = new[] { TempPoint1.X, TempPoint1.Y, TempPoint1.Z },
End = new[] { TempPoint2.X, TempPoint2.Y, TempPoint2.Z }
});
if (ls == null || ls.Count == 0)
{
return(false);
}
RayCastResult best = null;
var bestDist = 0.0f;
var ignore = new List <NiAVObject>(3);
{
var sk = actor.GetSkeletonNode(true);
if (sk != null)
{
ignore.Add(sk);
}
}
{
var sk = actor.GetSkeletonNode(false);
if (sk != null)
{
ignore.Add(sk);
}
}
if (update.CachedMounted)
{
var mount = actor.GetMount();
var sk = mount?.GetSkeletonNode(false);
if (sk != null)
{
ignore.Add(sk);
}
}
foreach (var r in ls)
{
if (!IsValid(r, ignore))
{
continue;
}
var dist = r.Fraction;
if (best == null)
{
best = r;
bestDist = dist;
}
else if (dist < bestDist)
{
best = r;
bestDist = dist;
}
}
if (best == null)
{
return(false);
}
bestDist *= len + safety + safety2;
bestDist -= safety + safety2;
bestDist /= len + safety + safety2;
// Negative is ok!
result.X = (TempPoint2.X - TempPoint1.X) * bestDist + TempPoint1.X;
result.Y = (TempPoint2.Y - TempPoint1.Y) * bestDist + TempPoint1.Y;
result.Z = (TempPoint2.Z - TempPoint1.Z) * bestDist + TempPoint1.Z;
return(true);
}