void CleanupMultithreadRaycasts()
{
#if UNITY_2018_1_OR_NEWER
if (_multithreadRaycasts == null)
{
return;
}
_multithreadRaycasts.raycasts.Dispose();
_multithreadRaycasts.hits.Dispose();
_multithreadRaycasts = null;
#endif
}
bool CalculateLineOfSight3D(Vector3 eye, float radius, float penetration, LayerMask layermask, Vector3 up, Vector3 forward)
{
bool hashit = false;
float angle = 360.0f / _distances.Length;
#if UNITY_2018_1_OR_NEWER
if (multithreading)
{
// make sure native arrays are ready
if (_multithreadRaycasts == null)
{
_multithreadRaycasts = new FogOfWarUnitRaycasts()
{
raycasts = new NativeArray <RaycastCommand>(lineOfSightRaycastCount, Allocator.Persistent),
hits = new NativeArray <RaycastHit>(lineOfSightRaycastCount, Allocator.Persistent)
};
}
else if (_multithreadRaycasts.raycasts.Length != lineOfSightRaycastCount)
{
_multithreadRaycasts.raycasts = new NativeArray <RaycastCommand>(lineOfSightRaycastCount, Allocator.Persistent);
_multithreadRaycasts.hits = new NativeArray <RaycastHit>(lineOfSightRaycastCount, Allocator.Persistent);
}
// prepare raycasts
for (int i = 0; i < _distances.Length; ++i)
{
Vector3 dir = Quaternion.AngleAxis(angle * i, up) * forward;
_multithreadRaycasts.raycasts[i] = new RaycastCommand(eye, dir, radius, layermask);
}
// perform raycasts
RaycastCommand.ScheduleBatch(_multithreadRaycasts.raycasts, _multithreadRaycasts.hits, 1).Complete();
// copy results
for (int i = 0; i < _distances.Length; ++i)
{
if (_multithreadRaycasts.hits[i].collider != null)
{
_distances[i] = (_multithreadRaycasts.hits[i].distance + penetration) / radius;
if (_distances[i] < 1)
{
hashit = true;
}
else
{
_distances[i] = 1;
}
}
else
{
_distances[i] = 1;
}
}
}
else
#endif
{
CleanupMultithreadRaycasts();
for (int i = 0; i < _distances.Length; ++i)
{
Vector3 dir = Quaternion.AngleAxis(angle * i, up) * forward;
if (Physics.Raycast(eye, dir, out RaycastHit hit, radius, layermask))
{
_distances[i] = (hit.distance + penetration) / radius;
if (_distances[i] < 1)
{
hashit = true;
}
else
{
_distances[i] = 1;
}
}