public NearestTriles NearestTrile(Vector3 position, QueryOptions options, Viewpoint?vp)
{
NearestTriles nearestTriles = new NearestTriles();
bool hasValue = vp.HasValue;
Viewpoint view = hasValue ? vp.Value : this.CameraManager.Viewpoint;
if (!hasValue)
{
this.WaitForScreenInvalidation();
}
bool flag1 = view == Viewpoint.Front || view == Viewpoint.Back;
bool flag2 = (options & QueryOptions.Background) == QueryOptions.Background;
bool simpleTest = (options & QueryOptions.Simple) == QueryOptions.Simple;
TrileEmplacement emplacement = new TrileEmplacement((int)position.X, (int)position.Y, (int)position.Z);
Vector3 vector3 = FezMath.ForwardVector(view);
int forwardSign = flag1 ? (int)vector3.Z : (int)vector3.X;
Vector3 screenSpacePosition = new Vector3(flag1 ? position.X : position.Z, position.Y, -1f);
Point key = !flag1 ? new Point(emplacement.Z, emplacement.Y) : new Point(emplacement.X, emplacement.Y);
int num1;
if (hasValue)
{
forwardSign = flag1 ? (int)vector3.Z : (int)vector3.X;
if (flag2)
{
forwardSign *= -1;
}
float num2 = (float)(((flag1 ? (double)this.Size.Z : (double)this.Size.X) - 1.0) / 2.0);
if (flag1)
{
emplacement.Z = (int)((double)num2 - (double)forwardSign * (double)num2);
}
else
{
emplacement.X = (int)((double)num2 - (double)forwardSign * (double)num2);
}
num1 = (int)((double)num2 + (double)forwardSign * (double)num2);
}
else if (simpleTest)
{
Limit limit;
if (!this.screenSpaceLimits.TryGetValue(key, out limit))
{
return(nearestTriles);
}
int num2 = flag2 ? limit.End : limit.Start;
if (flag1)
{
emplacement.Z = num2;
}
else
{
emplacement.X = num2;
}
num1 = flag2 ? limit.Start : limit.End;
if (flag2)
{
forwardSign *= -1;
}
}
else
{
Limit limit1;
bool flag3 = this.screenSpaceLimits.TryGetValue(key, out limit1);
int num2 = (double)FezMath.Frac(screenSpacePosition.X) > 0.5 ? 1 : -1;
int num3 = (double)FezMath.Frac(screenSpacePosition.Y) > 0.5 ? 1 : -1;
key.X += num2;
Limit limit2;
bool flag4 = this.screenSpaceLimits.TryGetValue(key, out limit2);
key.X -= num2;
key.Y += num3;
Limit limit3;
bool flag5 = this.screenSpaceLimits.TryGetValue(key, out limit3);
if (!flag3 && !flag5 && !flag4)
{
return(nearestTriles);
}
Limit limit4;
if (flag3)
{
limit4 = limit1;
if (!flag4 && !flag5)
{
simpleTest = true;
}
}
else
{
limit4.Start = forwardSign == 1 ? int.MaxValue : int.MinValue;
limit4.End = forwardSign == 1 ? int.MinValue : int.MaxValue;
limit4.NoOffset = true;
}
if (flag4)
{
limit4.Start = forwardSign == 1 ? Math.Min(limit4.Start, limit2.Start) : Math.Max(limit4.Start, limit2.Start);
limit4.End = forwardSign == 1 ? Math.Max(limit4.End, limit2.End) : Math.Min(limit4.End, limit2.End);
}
if (flag5)
{
limit4.Start = forwardSign == 1 ? Math.Min(limit4.Start, limit3.Start) : Math.Max(limit4.Start, limit3.Start);
limit4.End = forwardSign == 1 ? Math.Max(limit4.End, limit3.End) : Math.Min(limit4.End, limit3.End);
}
int num4 = flag2 ? limit4.End : limit4.Start;
if (flag1)
{
emplacement.Z = num4;
}
else
{
emplacement.X = num4;
}
num1 = flag2 ? limit4.Start : limit4.End;
if (flag2)
{
forwardSign *= -1;
}
}
int num5 = num1 + forwardSign;
bool flag6 = flag1 ? emplacement.Z != num5 : emplacement.X != num5;
if (flag1)
{
for (; flag6; flag6 = emplacement.Z != num5)
{
LevelManager.QueryResult nearestQueryResult;
TrileInstance trileInstance = this.OffsetInstanceAt(ref emplacement, ref screenSpacePosition, true, forwardSign, true, false, simpleTest, options, out nearestQueryResult);
if (trileInstance != null)
{
if (nearestQueryResult == LevelManager.QueryResult.Full)
{
nearestTriles.Deep = trileInstance;
break;
}
else if (nearestTriles.Surface == null)
{
nearestTriles.Surface = trileInstance;
}
}
emplacement.Z += forwardSign;
}
}
else
{
for (; flag6; flag6 = emplacement.X != num5)
{
LevelManager.QueryResult nearestQueryResult;
TrileInstance trileInstance = this.OffsetInstanceAt(ref emplacement, ref screenSpacePosition, false, forwardSign, true, false, simpleTest, options, out nearestQueryResult);
if (trileInstance != null)
{
if (nearestQueryResult == LevelManager.QueryResult.Full)
{
nearestTriles.Deep = trileInstance;
break;
}
else if (nearestTriles.Surface == null)
{
nearestTriles.Surface = trileInstance;
}
}
emplacement.X += forwardSign;
}
}
return(nearestTriles);
}
public PointCollision(Vector3 point, NearestTriles instances)
{
this.Point = point;
this.Instances = instances;
}
