private List <RayCastResult> DoRayCast(TESObjectCELL cell, float[] source, float[] target)
{
return(cell.RayCast(new RayCastParameters()
{
Begin = source,
End = target
}));
}
internal bool CanPlaceGrass(TESObjectCELL cell, TESObjectLAND land, float x, float y, float z)
{
if (cell == null)
{
return(true);
}
// Currently not dealing with this.
if (cell.IsInterior || !cell.IsAttached)
{
return(true);
}
var rp = new RayCastParameters();
rp.Begin = new float[] { x, y, z + this.RayHeight };
rp.End = new float[] { x, y, z - this.RayDepth };
rp.Cell = cell;
var rs = TESObjectCELL.RayCast(rp);
foreach (var r in rs)
{
if (r.Fraction >= 1.0f || r.HavokObject == IntPtr.Zero)
{
continue;
}
uint flags = Memory.ReadUInt32(r.HavokObject + 0x2C) & 0x7F;
ulong mask = (ulong)1 << (int)flags;
if ((this.RaycastMask & mask) == 0)
{
continue;
}
if (this.Ignore != null && this.IsIgnoredObject(r))
{
continue;
}
return(false);
}
return(true);
}
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;
if (actor == null)
{
return(false);
}
var cell = actor.ParentCell;
if (cell == null)
{
return(false);
}
float safety = (float)(update.Values.NearClip.CurrentValue + 1.0);
if (safety < 1.0f)
{
safety = 1.0f;
}
float 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;
float 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 float[] { TempPoint1.X, TempPoint1.Y, TempPoint1.Z },
End = new float[] { TempPoint2.X, TempPoint2.Y, TempPoint2.Z }
});
if (ls == null || ls.Count == 0)
{
return(false);
}
RayCastResult best = null;
float bestDist = 0.0f;
List <NiAVObject> 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();
if (mount != null)
{
var sk = mount.GetSkeletonNode(false);
if (sk != null)
{
ignore.Add(sk);
}
}
}
foreach (var r in ls)
{
if (!IsValid(r, ignore))
{
continue;
}
float 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);
}