private void UpdateCannonAim()
{
Vector3?targetPosition = null;
RaycastHit straightHit;
if (Physics.Raycast(targetDetectorOrigin.position, targetDetectorOrigin.forward, out straightHit, ~targetDetectionLayersToIgnore))
{
if (enemyLayerMask.ContainsLayer(straightHit.collider.gameObject.layer))
{
targetPosition = straightHit.transform.position;
}
}
if (!targetPosition.HasValue)
{
var hits =
PhysicsExtensions.RaycastCilinderWithEightRays(
targetDetectorOrigin.position,
targetDetectorOrigin.position + targetDetectorOrigin.forward * 10f,
targetDetectionRadius,
~targetDetectionLayersToIgnore,
debugTargetDetection,
debugTargetDetection
);
foreach (var hit in hits)
{
if (enemyLayerMask.ContainsLayer(hit.collider.gameObject.layer))
{
if (debugTargetDetection)
{
Debug.DrawLine(targetDetectorOrigin.position, hit.point, Color.red);
}
targetPosition = hit.transform.position;
break;
}
}
}
if (targetPosition.HasValue)
{
AimCannonsToPosition(targetPosition.Value);
enemyOnTarget = true;
if (debugTargetDetection)
{
Debug.DrawLine(targetDetectorOrigin.position, targetPosition.Value, Color.red);
}
}
else
{
AimCannonsForward();
enemyOnTarget = false;
}
crosshair.color = currentCrosshairColor;
primaryWeaponLeftCannonAttachment.transform.rotation = currentPrimaryWeaponLeftCannonRotation;
primaryWeaponRightCannonAttachment.transform.rotation = currentPrimaryWeaponRightCannonRotation;
secondaryWeaponLeftCannonAttachment.transform.rotation = currentSecondaryWeaponLeftCannonRotation;
secondaryWeaponRightCannonAttachment.transform.rotation = currentSecondaryWeaponRightCannonRotation;
}
protected bool IsPositionDirectlyReachable(Vector3 targetPosition)
{
var sqrMagnitudeToPosition = (targetPosition - transform.position).sqrMagnitude;
// First, check for straight line of sight, from center to center.
RaycastHit hit;
if (Physics.Raycast(transform.position, targetPosition - transform.position, out hit, float.MaxValue, ~layersToIgnoreInSightTest))
{
var sqrMagnitudeToHit = (hit.point - transform.position).sqrMagnitude;
// If the hit point is closer than the position that we want to see, there is something in between.
if (sqrMagnitudeToHit < sqrMagnitudeToPosition)
{
Debug.DrawLine(transform.position, hit.point);
return(false);
}
}
// Now we check if the boundaries of the object are also directly reachable to destination point.
var hits =
PhysicsExtensions.RaycastCilinderWithEightRays(
transform.position,
targetPosition,
sightTestSphereCastRadius,
~layersToIgnoreInSightTest,
debugReachabilityTest
);
var obstructed = false;
foreach (var h in hits)
{
var sqrMagnitudeToHit = (h.point - transform.position).sqrMagnitude;
// If the hit point is closer than the position that we want to see, there is something in between.
if (sqrMagnitudeToHit < sqrMagnitudeToPosition)
{
obstructed = true;
break;
}
}
return(!obstructed);
//var origins = new Vector3[8];
//origins[0] = transform.TransformPoint(Vector3.up * sightTestSphereCastRadius);
//origins[1] = transform.TransformPoint((Vector3.up + Vector3.right).normalized * sightTestSphereCastRadius);
//origins[2] = transform.TransformPoint(Vector3.right * sightTestSphereCastRadius);
//origins[3] = transform.TransformPoint((Vector3.down + Vector3.right).normalized * sightTestSphereCastRadius);
//origins[4] = transform.TransformPoint(Vector3.down * sightTestSphereCastRadius);
//origins[5] = transform.TransformPoint((Vector3.down + Vector3.left).normalized * sightTestSphereCastRadius);
//origins[6] = transform.TransformPoint(Vector3.left * sightTestSphereCastRadius);
//origins[7] = transform.TransformPoint((Vector3.up + Vector3.left).normalized * sightTestSphereCastRadius);
//var direction = targetPosition - transform.position;
//var sqrMagnitudeToPosition = (targetPosition - transform.position).sqrMagnitude;
//RaycastHit hit;
//foreach (var origin in origins)
//{
// if (Physics.Raycast(origin, direction, out hit, float.MaxValue, ~layersToIgnoreInSightTest))
// {
// if (debugReachabilityTest)
// {
// Debug.DrawLine(origin, hit.point);
// }
// var sqrMagnitudeToHit = (hit.point - transform.position).sqrMagnitude;
// // If the hit point is closer than the position that we want to see, there is something in between.
// if (sqrMagnitudeToHit < sqrMagnitudeToPosition)
// {
// return false;
// }
// }
//}
//// If nothing was hit, there is nothing between the position and the observer.
//return true;
}