public static Vector3 ConvertToDistanceDirectionVector3(Vector3 value, DistanceDirection distanceDirection)
{
switch (distanceDirection)
{
case DistanceDirection.HORIZONTAL:
return(new Vector3(value.x, 0f, value.z));
case DistanceDirection.VERTICAL:
return(new Vector3(0, value.y, 0));
}
return(value);
}
public static bool IsWithinDistance(Vector3 origin, Vector3 position, float sqrViewMagnitude, DistanceDirection distanceDirection)
{
origin = ConvertToDistanceDirectionVector3(origin, distanceDirection);
position = ConvertToDistanceDirectionVector3(position, distanceDirection);
// return Vector3.SqrMagnitude(position - origin) < sqrViewMagnitude;
return(Vector3.Distance(position, origin) <= sqrViewMagnitude);
}
public static bool IsWithinDistance(Collider sourceCollider, Vector3 position, float sqrViewMagnitude, DistanceDirection distanceDirection)
{
return(IsWithinDistance(sourceCollider.ClosestPointOnBounds(position), position, sqrViewMagnitude, distanceDirection));
}
public static bool IsWithinDistance(Transform sourceTransform, Vector3 position, float sqrViewMagnitude, DistanceDirection distanceDirection)
{
return(IsWithinDistance(sourceTransform.position, position, sqrViewMagnitude, distanceDirection));
}
public static bool IsWithinViewingAngle(Transform sourceTransform, Transform targetTransform, float fieldOfViewAngle, DistanceDirection distanceDirection = DistanceDirection.ALL)
{
Vector3 origin = ConvertToDistanceDirectionVector3(sourceTransform.position, distanceDirection);
Vector3 target = ConvertToDistanceDirectionVector3(targetTransform.position, distanceDirection);
Vector3 direction = target - origin;
float angle = Vector3.Angle(GetDirection(origin, target), sourceTransform.forward);
return(angle < fieldOfViewAngle);
}
// returns true if targetTransform is within sight of transform
public static bool IsWithinSight(Transform sourceTransform, Transform targetTransform, float fieldOfViewAngle, float sqrViewMagnitude, DistanceDirection distanceDirection = DistanceDirection.ALL)
{
Vector3 direction = targetTransform.position - sourceTransform.position;
float angle = Vector3.Angle(direction, sourceTransform.forward);
// an object is within sight if it is within the field of view and has a magnitude less than what the object can see
if (IsWithinViewingAngle(sourceTransform, targetTransform, fieldOfViewAngle, distanceDirection) &&
IsWithinDistance(sourceTransform, targetTransform, sqrViewMagnitude, distanceDirection))
{
return(true);
// return IsInLineOfSight(sourceTransform, targetTransform, GetDirection(sourceTransform, targetTransform));
}
return(false);
}
