public TransitionState ValidateWalkable(Sphere checkPos, Plane contactPlane, bool isWater, float waterDepth, Transition transition, uint landCellID)
{
var path = transition.SpherePath;
var collision = transition.CollisionInfo;
if (State.HasFlag(ObjectInfoState.IsViewer))
{
var dist = Vector3.Dot(checkPos.Center, contactPlane.Normal) - checkPos.Radius;
if (dist > -PhysicsGlobals.EPSILON && path.BeginPos != null && (path.BeginPos.ObjCellID & 0xFFFF) >= 0x100)
{
return(TransitionState.OK);
}
var offset = checkPos.Center - path.GlobalCurrCenter[0].Center;
var angle = dist / Vector3.Dot(offset, contactPlane.Normal);
if ((angle <= 0.0f || angle > 1.0f) && path.BeginPos != null && (path.BeginPos.ObjCellID & 0xFFFF) >= 0x100)
{
return(TransitionState.OK);
}
path.AddOffsetToCheckPos(offset * -angle);
collision.SetCollisionNormal(contactPlane.Normal);
collision.CollidedWithEnvironment = true;
return(TransitionState.Adjusted);
}
else
{
var dist = Vector3.Dot(checkPos.Center - new Vector3(0, 0, checkPos.Radius), contactPlane.Normal) + waterDepth;
if (dist >= -PhysicsGlobals.EPSILON)
{
if (dist > PhysicsGlobals.EPSILON)
{
return(TransitionState.OK);
}
if (path.StepDown || !State.HasFlag(ObjectInfoState.OnWalkable) || Object.is_valid_walkable(contactPlane.Normal))
{
collision.SetContactPlane(contactPlane, isWater);
collision.ContactPlaneCellID = landCellID;
}
if (!State.HasFlag(ObjectInfoState.Contact) && !path.StepDown)
{
collision.SetCollisionNormal(contactPlane.Normal);
collision.CollidedWithEnvironment = true;
}
return(TransitionState.OK);
}
else
{
if (path.CheckWalkable)
{
return(TransitionState.Collided);
}
var zDist = dist / contactPlane.Normal.Z;
if (path.StepDown || !State.HasFlag(ObjectInfoState.OnWalkable) || Object.is_valid_walkable(contactPlane.Normal))
{
collision.SetContactPlane(contactPlane, isWater);
collision.ContactPlaneCellID = landCellID;
if (path.StepDown)
{
var interp = (1.0f - -1.0f / (path.StepDownAmt * path.WalkInterp) * zDist) * path.WalkInterp;
if (interp >= path.WalkInterp || interp < -0.1f)
{
return(TransitionState.Collided);
}
path.WalkInterp = interp;
}
var offset = new Vector3(0, 0, -zDist);
path.AddOffsetToCheckPos(offset);
}
if (!State.HasFlag(ObjectInfoState.Contact) && !path.StepDown)
{
collision.SetCollisionNormal(contactPlane.Normal);
collision.CollidedWithEnvironment = true;
}
return(TransitionState.Adjusted);
}
}
}