void HandleTravellers()
{
for (int i = 0; i < trackedTravellers.Count; i++)
{
PortalTraveller traveller = trackedTravellers[i];
var travellerRb = traveller.travellerRigidbody;
var m = linkedPortal.transform.localToWorldMatrix * transform.worldToLocalMatrix * travellerRb.transform.localToWorldMatrix;
var portalPosition = m.GetColumn(3);
var portalRotation = m.rotation;
Vector3 offsetFromPortal = travellerRb.position - transform.position;
int portalSide = System.Math.Sign(Vector3.Dot(offsetFromPortal, transform.forward));
int portalSideOld = System.Math.Sign(Vector3.Dot(traveller.previousOffsetFromPortal, transform.forward));
// Teleport the traveller if it has crossed from one side of the portal to the other
if (portalSide != portalSideOld)
{
var positionOld = travellerRb.position;
var rotOld = travellerRb.rotation;
traveller.Teleport(transform, linkedPortal.transform, portalPosition, portalRotation);
traveller.graphicsClone.transform.SetPositionAndRotation(positionOld, rotOld);
// Can't rely on OnTriggerEnter/Exit to be called next frame since it depends on when FixedUpdate runs
linkedPortal.OnTravellerEnterPortal(traveller, portalPosition);
linkedPortal.JustGotTeleportedTo();
trackedTravellers.RemoveAt(i);
i--;
TravellerExited.Invoke();
}
else
{
traveller.graphicsClone.transform.SetPositionAndRotation(portalPosition, portalRotation);
//UpdateSliceParams (traveller);
traveller.previousOffsetFromPortal = offsetFromPortal;
}
}
}
void OnTravellerEnterPortal(PortalTraveller traveller, Vector3 position)
{
if (!trackedTravellers.Contains(traveller))
{
traveller.EnterPortalThreshold();
traveller.previousOffsetFromPortal = position - transform.position;
trackedTravellers.Add(traveller);
}
}
void UpdateSliceParams(PortalTraveller traveller)
{
// Calculate slice normal
int side = SideOfPortal(traveller.travellerRigidbody.position);
Vector3 sliceNormal = transform.forward * -side;
Vector3 cloneSliceNormal = linkedPortal.transform.forward * side;
// Calculate slice centre
Vector3 slicePos = transform.position;
Vector3 cloneSlicePos = linkedPortal.transform.position;
// Adjust slice offset so that when player standing on other side of portal to the object, the slice doesn't clip through
float sliceOffsetDst = 0;
float cloneSliceOffsetDst = 0;
float screenThickness = screen.transform.localScale.z;
bool playerSameSideAsTraveller = SameSideOfPortal(playerCam.transform.position, traveller.travellerRigidbody.position);
if (!playerSameSideAsTraveller)
{
sliceOffsetDst = -screenThickness;
}
bool playerSameSideAsCloneAppearing = side != linkedPortal.SideOfPortal(playerCam.transform.position);
if (!playerSameSideAsCloneAppearing)
{
cloneSliceOffsetDst = -screenThickness;
}
// Apply parameters
for (int i = 0; i < traveller.originalMaterials.Length; i++)
{
traveller.originalMaterials[i].SetVector("sliceCentre", slicePos);
traveller.originalMaterials[i].SetVector("sliceNormal", sliceNormal);
traveller.originalMaterials[i].SetFloat("sliceOffsetDst", sliceOffsetDst);
traveller.cloneMaterials[i].SetVector("sliceCentre", cloneSlicePos);
traveller.cloneMaterials[i].SetVector("sliceNormal", cloneSliceNormal);
traveller.cloneMaterials[i].SetFloat("sliceOffsetDst", cloneSliceOffsetDst);
}
}
