/// <summary>
/// Generates a SphereCast either from the given <see cref="PhysicsCast"/> object or a default <see cref="Physics.SphereCast"/>.
/// </summary>
/// <param name="customCast">The optional <see cref="PhysicsCast"/> with customized cast parameters.</param>
/// <param name="origin">The origin point of the sphere to cast.</param>
/// <param name="radius">The radius of the sphere.</param>
/// <param name="direction">The direction into which to sweep the sphere.</param>
/// <param name="hitData">The <see cref="RaycastHit"/> data.</param>
/// <param name="maxDistance">The max length of the sweep.</param>
/// <param name="ignoreLayers">A <see cref="LayerMask"/> of layers to ignore from the SphereCast.</param>
/// <param name="affectTriggers">Determines the trigger interaction level of the cast.</param>
/// <returns><see langword="true"/> if the SphereCast successfully collides with a valid <see cref="GameObject"/>.</returns>
public static bool SphereCast(PhysicsCast customCast, Vector3 origin, float radius, Vector3 direction, out RaycastHit hitData, float maxDistance, LayerMask ignoreLayers, QueryTriggerInteraction affectTriggers = QueryTriggerInteraction.UseGlobal)
{
if (customCast != null)
{
return(customCast.CustomSphereCast(origin, radius, direction, out hitData, maxDistance));
}
else
{
return(Physics.SphereCast(origin, radius, direction, out hitData, maxDistance, ~ignoreLayers, affectTriggers));
}
}
/// <summary>
/// Generates the points for the cast.
/// </summary>
protected virtual void GeneratePoints()
{
Ray ray = new Ray(origin.transform.position, origin.transform.forward);
RaycastHit hitData;
bool hasCollided = PhysicsCast.Raycast(physicsCast, ray, out hitData, maximumLength, Physics.IgnoreRaycastLayer);
TargetHit = (hasCollided ? hitData : (RaycastHit?)null);
points[0] = origin.transform.position;
points[1] = (hasCollided ? hitData.point : origin.transform.position + origin.transform.forward * maximumLength);
}
/// <summary>
/// Generates a Linecast either from the given <see cref="PhysicsCast"/> object or a default <see cref="Physics.Linecast"/>.
/// </summary>
/// <param name="customCast">The optional <see cref="PhysicsCast"/> with customized cast parameters.</param>
/// <param name="startPosition">The world position to start the Linecast from.</param>
/// <param name="endPosition">The world position to end the Linecast at.</param>
/// <param name="hitData">The <see cref="RaycastHit"/> data.</param>
/// <param name="ignoreLayers">A <see cref="LayerMask"/> of layers to ignore from the Linecast.</param>
/// <param name="affectTriggers">Determines the trigger interaction level of the cast.</param>
/// <returns><see langword="true"/> if the Linecast successfully collides with a valid <see cref="GameObject"/>.</returns>
public static bool Linecast(PhysicsCast customCast, Vector3 startPosition, Vector3 endPosition, out RaycastHit hitData, LayerMask ignoreLayers, QueryTriggerInteraction affectTriggers = QueryTriggerInteraction.UseGlobal)
{
if (customCast != null)
{
return(customCast.CustomLinecast(startPosition, endPosition, out hitData));
}
else
{
return(Physics.Linecast(startPosition, endPosition, out hitData, ~ignoreLayers, affectTriggers));
}
}
/// <summary>
/// Generates a RaycastAll either from the given <see cref="PhysicsCast"/> object or a default <see cref="Physics.Raycast"/>.
/// </summary>
/// <param name="customCast">The optional <see cref="PhysicsCast"/> with customized cast parameters.</param>
/// <param name="ray">The <see cref="Ray"/> to cast with.</param>
/// <param name="length">The maximum length of the <see cref="Ray"/>.</param>
/// <param name="ignoreLayers">A <see cref="LayerMask"/> of layers to ignore from the <see cref="Ray"/>.</param>
/// <param name="affectTriggers">Determines the trigger interaction level of the <see cref="Ray"/>.</param>
/// <returns>A collection of collisions determined by the cast.</returns>
public static RaycastHit[] RaycastAll(PhysicsCast customCast, Ray ray, float length, LayerMask ignoreLayers, QueryTriggerInteraction affectTriggers = QueryTriggerInteraction.UseGlobal)
{
if (customCast != null)
{
return(customCast.CustomRaycastAll(ray, length));
}
else
{
return(Physics.RaycastAll(ray, length, ~ignoreLayers, affectTriggers));
}
}
/// <summary>
/// Generates a BoxCastAll either from the given <see cref="PhysicsCast"/> object or a default <see cref="Physics.BoxCast"/>.
/// </summary>
/// <param name="customCast">The optional <see cref="PhysicsCast"/> with customized cast parameters.</param>
/// <param name="center">The center of the box.</param>
/// <param name="halfExtents">Half the size of the box in each dimension.</param>
/// <param name="direction">The direction in which to cast the box.</param>
/// <param name="orientation">The rotation of the box.</param>
/// <param name="maxDistance">The max length of the cast.</param>
/// <param name="ignoreLayers">A <see cref="LayerMask"/> of layers to ignore from the BoxCast.</param>
/// <param name="affectTriggers">Determines the trigger interaction level of the cast.</param>
/// <returns>A collection of collisions determined by the cast.</returns>
public static RaycastHit[] BoxCastAll(PhysicsCast customCast, Vector3 center, Vector3 halfExtents, Vector3 direction, Quaternion orientation, float maxDistance, LayerMask ignoreLayers, QueryTriggerInteraction affectTriggers = QueryTriggerInteraction.UseGlobal)
{
if (customCast != null)
{
return(customCast.CustomBoxCastAll(center, halfExtents, direction, orientation, maxDistance));
}
else
{
return(Physics.BoxCastAll(center, halfExtents, direction, orientation, maxDistance, ~ignoreLayers, affectTriggers));
}
}
/// <summary>
/// Generates a CapsuleCastAll either from the given <see cref="PhysicsCast"/> object or a default <see cref="Physics.CapsuleCast"/>.
/// </summary>
/// <param name="customCast">The optional <see cref="PhysicsCast"/> with customized cast parameters.</param>
/// <param name="point1">The center of the sphere at the start of the capsule.</param>
/// <param name="point2">The center of the sphere at the end of the capsule.</param>
/// <param name="radius">The radius of the capsule.</param>
/// <param name="direction">The direction into which to sweep the capsule.</param>
/// <param name="maxDistance">The max length of the sweep.</param>
/// <param name="ignoreLayers">A <see cref="LayerMask"/> of layers to ignore from the CapsuleCast.</param>
/// <param name="affectTriggers">Determines the trigger interaction level of the cast.</param>
/// <returns>A collection of collisions determined by the cast.</returns>
public static RaycastHit[] CapsuleCastAll(PhysicsCast customCast, Vector3 point1, Vector3 point2, float radius, Vector3 direction, float maxDistance, LayerMask ignoreLayers, QueryTriggerInteraction affectTriggers = QueryTriggerInteraction.UseGlobal)
{
if (customCast != null)
{
return(customCast.CustomCapsuleCastAll(point1, point2, radius, direction, maxDistance));
}
else
{
return(Physics.CapsuleCastAll(point1, point2, radius, direction, maxDistance, ~ignoreLayers, affectTriggers));
}
}
/// <inheritdoc />
public override void CastPoints()
{
if (!isActiveAndEnabled)
{
return;
}
Ray ray = new Ray(transform.position, transform.forward);
RaycastHit hitData;
bool hasCollided = PhysicsCast.Raycast(physicsCast, ray, out hitData, maximumLength, Physics.IgnoreRaycastLayer);
TargetHit = (hasCollided ? hitData : (RaycastHit?)null);
points[0] = transform.position;
points[1] = (hasCollided ? hitData.point : transform.position + transform.forward * maximumLength);
ResultsChanged?.Invoke(eventData.Set(TargetHit, Points));
}
/// <summary>
/// Checks for collisions along the parabolic line segments and generates the final points.
/// </summary>
/// <param name="forward">The forward direction to use for the checks.</param>
/// <param name="down">The downwards direction to use for the checks.</param>
protected virtual void GeneratePointsIncludingSegments(Vector3 forward, Vector3 down)
{
GeneratePoints(forward, down);
collisionCheckFrequency = Mathf.Clamp(collisionCheckFrequency, 0, segmentCount);
int step = segmentCount / (collisionCheckFrequency > 0 ? collisionCheckFrequency : 1);
for (int index = 0; index < segmentCount - step; index += step)
{
Vector3 currentPoint = points[index];
Vector3 nextPoint = index + step < points.Count ? points[index + step] : points[points.Count - 1];
Vector3 nextPointDirection = (nextPoint - currentPoint).normalized;
float nextPointDistance = Vector3.Distance(currentPoint, nextPoint);
Ray pointsRay = new Ray(currentPoint, nextPointDirection);
RaycastHit pointsHitData;
if (!PhysicsCast.Raycast(physicsCast, pointsRay, out pointsHitData, nextPointDistance, Physics.IgnoreRaycastLayer))
{
continue;
}
Vector3 collisionPoint = pointsRay.GetPoint(pointsHitData.distance);
Ray downwardRay = new Ray(collisionPoint + Vector3.up * 0.01f, Vector3.down);
RaycastHit downwardHitData;
if (!PhysicsCast.Raycast(physicsCast, downwardRay, out downwardHitData, float.PositiveInfinity, Physics.IgnoreRaycastLayer))
{
continue;
}
TargetHit = downwardHitData;
Vector3 newDownPosition = downwardRay.GetPoint(downwardHitData.distance);
Vector3 newJointPosition = newDownPosition.y < forward.y ? new Vector3(newDownPosition.x, forward.y, newDownPosition.z) : forward;
GeneratePoints(newJointPosition, newDownPosition);
break;
}
ResultsChanged?.Invoke(eventData.Set(TargetHit, Points));
}
/// <summary>
/// Projects a straight line downwards from the provided point.
/// </summary>
/// <param name="downwardOrigin">The origin of the projected line.</param>
/// <returns>The collision point or the point being the furthest away on the cast line if nothing is hit.</returns>
protected virtual Vector3 ProjectDown(Vector3 downwardOrigin)
{
Vector3 point = Vector3.zero;
Ray ray = new Ray(downwardOrigin, Vector3.down);
RaycastHit hitData;
bool downRayHit = PhysicsCast.Raycast(physicsCast, ray, out hitData, maximumLength.y, Physics.IgnoreRaycastLayer);
if (!downRayHit || (TargetHit?.collider != null && TargetHit.Value.collider != hitData.collider))
{
TargetHit = null;
point = ray.GetPoint(0f);
}
if (downRayHit)
{
point = ray.GetPoint(hitData.distance);
TargetHit = hitData;
}
return(point);
}
/// <summary>
/// Projects a straight line forward from the current origin.
/// </summary>
/// <returns>The collision point or the point being the furthest away on the cast line if nothing is hit.</returns>
protected virtual Vector3 ProjectForward()
{
float rotation = Vector3.Dot(Vector3.up, origin.transform.forward.normalized);
float length = maximumLength.x;
if ((rotation * 100f) > heightLimitAngle)
{
float controllerRotationOffset = 1f - (rotation - heightLimitAngle / 100f);
length = maximumLength.x * controllerRotationOffset * controllerRotationOffset;
}
Ray ray = new Ray(origin.transform.position, origin.transform.forward);
RaycastHit hitData;
bool hasCollided = PhysicsCast.Raycast(physicsCast, ray, out hitData, length, Physics.IgnoreRaycastLayer);
// Adjust the cast length if something is blocking it.
if (hasCollided && hitData.distance < length)
{
length = hitData.distance;
}
// Use an offset to move the point back and up a bit to prevent the cast clipping at the collision point.
return(ray.GetPoint(length - ADJUSTMENT_OFFSET) + (Vector3.up * ADJUSTMENT_OFFSET));
}
