static bool Prefix(RaycastHit hit, ref Vector3 position, ref Quaternion rotation)
{
if (!SnapBuilder.Config.Snapping.Enabled)
{
return(true); // Pass to the original function if SnapBuilder is disabled
}
Vector3 localPoint = hit.transform.InverseTransformPoint(hit.point); // Get the hit point localised relative to the hit transform
Vector3 localNormal = hit.transform.InverseTransformDirection(hit.normal).normalized; // Get the hit normal localised to the hit transform
// Set the localised normal to absolute values for comparison
localNormal.x = Mathf.Abs(localNormal.x);
localNormal.y = Mathf.Abs(localNormal.y);
localNormal.z = Mathf.Abs(localNormal.z);
localNormal = localNormal.normalized; // For sanity's sake, make sure the normal is normalised
// Get the rounding factor from user options based on whether the fine snapping key is held or not
float roundFactor = SnapBuilder.Config.FineSnapping.Enabled ? SnapBuilder.Config.FineSnapRounding : SnapBuilder.Config.SnapRounding;
// Round (snap) the localised hit point coords only on axes where the corresponding normal axis is less than 1
if (localNormal.x < 1)
{
localPoint.x = SnapBuilder.RoundToNearest(localPoint.x, roundFactor);
}
if (localNormal.y < 1)
{
localPoint.y = SnapBuilder.RoundToNearest(localPoint.y, roundFactor);
}
if (localNormal.z < 1)
{
localPoint.z = SnapBuilder.RoundToNearest(localPoint.z, roundFactor);
}
// Now, perform a new raycast so that we can get the normal of the new position
Transform aimTransform = Builder.GetAimTransform();
if (!Physics.Raycast(aimTransform.position,
hit.transform.TransformPoint(localPoint) - aimTransform.position, // direction from the aim transform to the new world space position of the rounded/snapped position
out hit, // overwrite hit
Builder.placeMaxDistance,
Builder.placeLayerMask.value,
QueryTriggerInteraction.Ignore))
{ // If there is no new hit, then the position we're snapping to isn't valid and we can just return false
// without setting the position or rotation and it will be treated as if no hit occurred
return(false);
}
// Set the position equal to the new hit point
position = hit.point;
Vector3 hitNormal = hit.normal; // Store the hit.normal as we may need to change this in certain circumstances
// If the hit.collider is a MeshCollider and has a sharedMesh, it is a surface like the ground or the roof of a multipurpose room,
// in which case we want a more accurate normal where possible
MeshCollider meshCollider = hit.collider as MeshCollider;
if (meshCollider?.sharedMesh != null)
{
// Set up the offsets for raycasts around the point
Vector3[] offsets = new Vector3[]
{
Vector3.forward,
Vector3.back,
Vector3.left,
Vector3.right,
(Vector3.forward + Vector3.right) * .707f,
(Vector3.forward + Vector3.left) * .707f,
(Vector3.back + Vector3.right) * .707f,
(Vector3.back + Vector3.left) * .707f
};
List <Vector3> normals = new List <Vector3>();
// Perform a raycast from each offset, pointing down toward the surface
foreach (Vector3 offset in offsets)
{
Physics.Raycast(position + Vector3.up * .1f + offset * .2f,
Vector3.down,
out RaycastHit offsetHit,
Builder.placeMaxDistance,
Builder.placeLayerMask.value,
QueryTriggerInteraction.Ignore);
if (offsetHit.transform == hit.transform) // If we hit the same object, add the hit normal
{
normals.Add(offsetHit.normal);
}
}
foreach (Vector3 normal in normals)
{
if (normal != hit.normal)
{ // If the normal is not the same as the original, add it to the normal and average
hitNormal += normal / 2;
}
}
// For sanity's sake, make sure the normal is normalised after summing & averaging
hitNormal = hitNormal.normalized;
}
if (Builder.rotationEnabled)
{ // New calculation of the rotation
// Get the rotation factor from user options based on whether the fine snapping key is held or not
float rotationFactor = SnapBuilder.Config.FineRotation.Enabled ? SnapBuilder.Config.FineRotationRounding : SnapBuilder.Config.RotationRounding;
// If the user is rotating, apply the additive rotation
if (GameInput.GetButtonHeld(Builder.buttonRotateCW)) // Clockwise
{
if (SnapBuilder.LastButton != Builder.buttonRotateCW)
{ // Clear previous rotation held time
SnapBuilder.LastButton = Builder.buttonRotateCW;
SnapBuilder.LastButtonHeldTime = -1f;
}
float buttonHeldTime = SnapBuilder.FloorToNearest(GameInput.GetButtonHeldTime(Builder.buttonRotateCW), 0.15f);
if (buttonHeldTime > SnapBuilder.LastButtonHeldTime)
{ // Store rotation held time
SnapBuilder.LastButtonHeldTime = buttonHeldTime;
Builder.additiveRotation -= rotationFactor; // Decrement rotation
}
}
else if (GameInput.GetButtonHeld(Builder.buttonRotateCCW)) // Counter-clockwise
{
if (SnapBuilder.LastButton != Builder.buttonRotateCCW)
{ // Clear previous rotation held time
SnapBuilder.LastButton = Builder.buttonRotateCCW;
SnapBuilder.LastButtonHeldTime = -1f;
}
float buttonHeldTime = SnapBuilder.FloorToNearest(GameInput.GetButtonHeldTime(Builder.buttonRotateCCW), 0.15f);
if (buttonHeldTime > SnapBuilder.LastButtonHeldTime)
{ // Store rotation held time
SnapBuilder.LastButtonHeldTime = buttonHeldTime;
Builder.additiveRotation += rotationFactor; // Increment rotation
}
}
else if (GameInput.GetButtonUp(Builder.buttonRotateCW) || GameInput.GetButtonUp(Builder.buttonRotateCCW))
{ // User is not rotating, clear rotation held time
SnapBuilder.LastButtonHeldTime = -1f;
}
// Round to the nearest rotation factor for rotation snapping
Builder.additiveRotation = SnapBuilder.RoundToNearest(Builder.additiveRotation, rotationFactor) % 360;
Transform hitTransform = hit.transform;
if (!Player.main.IsInside())
{ // If the player is outside, get the root transform if there is one, otherwise default to the original
hitTransform = UWE.Utils.GetEntityRoot(hit.transform.gameObject)?.transform ?? hit.transform;
}
// Instantiate empty game objects for applying rotations
GameObject empty = new GameObject();
GameObject child = new GameObject();
child.transform.parent = empty.transform; // parent the child to the empty
child.transform.localPosition = Vector3.zero; // Make sure the child's local position is Vector3.zero
empty.transform.position = position; // Set the parent transform's position to our chosen position
empty.transform.forward = hitTransform.forward; // Set the parent transform's forward to match the forward of the hit.transform
if (!Builder.forceUpright)
{ // Rotate the parent transform so that it's Y axis is aligned with the hit.normal, but only when if it isn't forced upright
empty.transform.rotation = Quaternion.FromToRotation(Vector3.up, hitNormal) * empty.transform.rotation;
}
child.transform.LookAt(Player.main.transform); // Rotate the child transform to look at the player (so that the object will face the player by default, as in the original)
child.transform.localEulerAngles
= new Vector3(0,
SnapBuilder.RoundToNearest(child.transform.localEulerAngles.y + Builder.additiveRotation, rotationFactor) % 360,
0); // Round/snap the Y axis of the child transform's local rotation based on the user's rotation factor, after adding the additiveRotation
rotation = child.transform.rotation; // Our final rotation
// Clean up after ourselves
GameObject.DestroyImmediate(child);
GameObject.DestroyImmediate(empty);
}
else
{ // Calculate rotation in the same manner as the original method
Vector3 vector = Vector3.forward;
Vector3 vector2 = Vector3.up;
if (Builder.forceUpright)
{
vector = -aimTransform.forward;
vector.y = 0f;
vector.Normalize();
vector2 = Vector3.up;
}
else
{
switch (Builder.GetSurfaceType(hitNormal))
{
case SurfaceType.Ground:
vector2 = hitNormal;
vector = -aimTransform.forward;
vector.y -= Vector3.Dot(vector, vector2);
vector.Normalize();
break;
case SurfaceType.Wall:
vector = hitNormal;
vector2 = Vector3.up;
break;
case SurfaceType.Ceiling:
vector = hitNormal;
vector2 = -aimTransform.forward;
vector2.y -= Vector3.Dot(vector2, vector);
vector2.Normalize();
break;
}
}
rotation = Quaternion.LookRotation(vector, vector2);
}
return(false); // Do not run the original method
}
