protected virtual void Update()
{
// Make sure the camera exists
cachedCamera = LeanHelper.GetCamera(Camera, gameObject);
if (cachedCamera != null)
{
// Get the fingers we want to use
var fingers = Use.GetFingers();
if (fingers.Count > 0)
{
// If it's the first frame the fingers are down, grab the current screen point of this GameObject
if (targetSet == false)
{
targetSet = true;
targetScreenPoint = cachedCamera.WorldToScreenPoint(transform.position);
}
// Shift target point based on finger deltas
// NOTE: targetScreenPoint.z already stores the depth
targetScreenPoint += (Vector3)LeanGesture.GetScreenDelta(fingers);
}
// Unset if no fingers are down
else
{
targetSet = false;
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
protected virtual void Translate(float twistDegrees, Vector2 twistScreenCenter)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
// Screen position of the transform
var screenPoint = camera.WorldToScreenPoint(transform.position);
// Twist screen point around the twistScreenCenter by twistDegrees
var twistRotation = Quaternion.Euler(0.0f, 0.0f, twistDegrees);
var screenDelta = twistRotation * ((Vector2)screenPoint - twistScreenCenter);
screenPoint.x = twistScreenCenter.x + screenDelta.x;
screenPoint.y = twistScreenCenter.y + screenDelta.y;
// Convert back to world space
transform.position = camera.ScreenToWorldPoint(screenPoint);
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
protected virtual void Update()
{
// Is this selected and has a selecting finger?
if (Selectable != null && Selectable.IsSelected == true)
{
var finger = Selectable.SelectingFinger;
if (finger != null)
{
// Camera exists?
var camera = LeanHelper.GetCamera(null);
if (camera != null)
{
// Find the screen point of the finger using the depth of this block
var screenPoint = new Vector3(finger.ScreenPosition.x, finger.ScreenPosition.y, camera.WorldToScreenPoint(transform.position).z);
// Find the world space point under the finger
var worldPoint = camera.ScreenToWorldPoint(screenPoint);
// Find the block coordinate at this point
var dragX = Mathf.RoundToInt(worldPoint.x / BlockSize);
var dragY = Mathf.RoundToInt(worldPoint.y / BlockSize);
// Is this block right next to this one?
var distX = Mathf.Abs(X - dragX);
var distY = Mathf.Abs(Y - dragY);
if (distX + distY == 1)
{
// Swap blocks if one exists at this coordinate
var block = FindBlock(dragX, dragY);
if (block != null)
{
Swap(this, block);
if (DeselectOnSwap == true)
{
Selectable.Deselect();
}
}
}
}
}
}
// Smoothly move to new position
var targetPosition = Vector3.zero;
var factor = LeanHelper.GetDampenFactor(Damping, Time.deltaTime);
targetPosition.x = X * BlockSize;
targetPosition.y = Y * BlockSize;
transform.localPosition = Vector3.Lerp(transform.localPosition, targetPosition, factor);
}
private void UpdateTranslation()
{
var finalTransform = Target != null ? Target : transform;
// Get the fingers we want to use
var fingers = Use.GetFingers();
// Calculate the screenDelta value based on these fingers
var screenDelta = LeanGesture.GetScreenDelta(fingers);
// Make sure the camera exists
var camera = LeanHelper.GetCamera(ScreenDepth.Camera, gameObject);
if (fingers.Count == 0)
{
deltaDifference = Vector2.zero;
}
if (camera != null)
{
var worldPosition = finalTransform.position;
var oldScreenPoint = camera.WorldToScreenPoint(worldPosition);
if (TrackScreenPosition == true)
{
if (ScreenDepth.TryConvert(ref worldPosition, oldScreenPoint + (Vector3)(screenDelta + deltaDifference), gameObject) == true)
{
finalTransform.position = worldPosition;
}
var newScreenPoint = camera.WorldToScreenPoint(worldPosition);
var oldNewDelta = (Vector2)(newScreenPoint - oldScreenPoint);
deltaDifference += screenDelta - oldNewDelta;
}
else
{
if (ScreenDepth.TryConvert(ref worldPosition, oldScreenPoint + (Vector3)screenDelta, gameObject) == true)
{
finalTransform.position = worldPosition;
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
protected virtual void Rotate(float twistDegrees)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var axis = transform.InverseTransformDirection(camera.transform.forward);
transform.rotation *= Quaternion.AngleAxis(twistDegrees, axis);
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
/// <summary>This will return the change in world position of this finger based on the last and current distance from the camera.</summary>
public Vector3 GetWorldDelta(float lastDistance, float distance, Camera camera = null)
{
// Make sure the camera exists
camera = LeanHelper.GetCamera(camera);
if (camera != null)
{
return(GetWorldPosition(distance, camera) - GetLastWorldPosition(lastDistance, camera));
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.");
}
return(default(Vector3));
}
/// <summary>This will return the ray of the finger's start position relative to the specified camera (none/null = Main Camera).</summary>
public Ray GetStartRay(Camera camera = null)
{
// Make sure the camera exists
camera = LeanHelper.GetCamera(camera);
if (camera != null)
{
return(camera.ScreenPointToRay(StartScreenPosition));
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.");
}
return(default(Ray));
}
/// <summary>This will return the world position of this finger based on the distance from the camera.</summary>
public Vector3 GetWorldPosition(float distance, Camera camera = null)
{
// Make sure the camera exists
camera = LeanHelper.GetCamera(camera);
if (camera != null)
{
var point = new Vector3(ScreenPosition.x, ScreenPosition.y, distance);
return(camera.ScreenToWorldPoint(point));
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.");
}
return(default(Vector3));
}
protected void SetZoom(float current)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
if (camera.orthographic == true)
{
camera.orthographicSize = current;
}
else
{
camera.fieldOfView = current;
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
private void Translate(Vector2 screenDelta)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(this._camera, gameObject);
if (camera != null)
{
// Screen position of the transform
var screenPoint = camera.WorldToScreenPoint(transform.position);
// Add the deltaPosition
screenPoint += (Vector3)screenDelta * Sensitivity;
// Convert back to world space
transform.position = camera.ScreenToWorldPoint(screenPoint);
}
else
{
Debug.LogError("Failed to find camera. Either tag your camera as MainCamera, or set one in this component.", this);
}
}
protected virtual void Update()
{
// Is this GameObject selected?
if (Selectable != null && Selectable.IsSelected == true)
{
// Does it have a selected finger?
var finger = Selectable.SelectingFinger;
if (finger != null)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var newScaledDelta = finger.ScaledDelta;
if (oldScaledDelta != Vector2.zero && newScaledDelta != Vector2.zero)
{
var angleA = Mathf.Atan2(oldScaledDelta.y, oldScaledDelta.x) * Mathf.Rad2Deg;
var angleB = Mathf.Atan2(newScaledDelta.y, newScaledDelta.x) * Mathf.Rad2Deg;
var torque = Mathf.DeltaAngle(angleA, angleB) * (oldScaledDelta.magnitude + newScaledDelta.magnitude);
if (cachedRigidbody == null)
{
cachedRigidbody = GetComponent <Rigidbody>();
}
cachedRigidbody.AddTorque(camera.transform.forward * torque * Force, ForceMode.Acceleration);
}
oldScaledDelta = newScaledDelta;
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
}
}
protected virtual void Translate(float pinchScale, Vector2 screenCenter)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(_camera, gameObject);
if (camera != null)
{
// Screen position of the transform
var screenPosition = camera.WorldToScreenPoint(transform.position);
// Push the screen position away from the reference point based on the scale
screenPosition.x = screenCenter.x + (screenPosition.x - screenCenter.x) * pinchScale;
screenPosition.y = screenCenter.y + (screenPosition.y - screenCenter.y) * pinchScale;
// Convert back to world space
transform.position = camera.ScreenToWorldPoint(screenPosition);
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
private Vector2 GetPoint(Vector2 screenPoint)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var rectTransform = transform as RectTransform;
if (rectTransform != null)
{
var worldPoint = default(Vector3);
if (RectTransformUtility.ScreenPointToWorldPointInRectangle(rectTransform, screenPoint, camera, out worldPoint) == true)
{
return(Quaternion.LookRotation(Axis) * transform.InverseTransformPoint(worldPoint));
}
}
else
{
var ray = camera.ScreenPointToRay(screenPoint);
var plane = new Plane(transform.TransformDirection(Axis), transform.position);
var distance = default(float);
if (plane.Raycast(ray, out distance) == true)
{
return(Quaternion.Inverse(Quaternion.LookRotation(Axis)) * transform.InverseTransformPoint(ray.GetPoint(distance)));
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
return(oldPoint);
}
// Transform rect based on finger data
private void WriteTransform(RectTransform rect, LeanFinger finger)
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var min = camera.ScreenToViewportPoint(finger.StartScreenPosition);
var max = camera.ScreenToViewportPoint(finger.ScreenPosition);
// Fix any inverted values
if (min.x > max.x)
{
var t = min.x;
min.x = max.x;
max.x = t;
}
if (min.y > max.y)
{
var t = min.y;
min.y = max.y;
max.y = t;
}
// Reset pivot in case you forgot
rect.pivot = Vector2.zero;
// Set anchors
rect.anchorMin = min;
rect.anchorMax = max;
// Make rect we check against
var viewportRect = new Rect();
viewportRect.min = min;
viewportRect.max = max;
// Rebuild list of all selectables within rect
selectables.Clear();
foreach (var selectable in LeanSelectable.Instances)
{
var viewportPoint = camera.WorldToViewportPoint(selectable.transform.position);
if (viewportRect.Contains(viewportPoint) == true)
{
selectables.Add(selectable);
}
}
// Select them
LeanSelectable.ReplaceSelection(finger, selectables);
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
protected void TryGetComponent(SelectType selectUsing, Vector2 screenPosition, ref Component component, ref Vector3 worldPosition)
{
switch (selectUsing)
{
case SelectType.Raycast3D:
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
if (camera.pixelRect.Contains(screenPosition) == true)
{
var ray = camera.ScreenPointToRay(screenPosition);
var count = Physics.RaycastNonAlloc(ray, raycastHits, float.PositiveInfinity, LayerMask);
if (count > 0)
{
var closestHit = raycastHits[GetClosestRaycastHitsIndex(count)];
component = closestHit.transform;
worldPosition = closestHit.point;
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
case SelectType.Overlap2D:
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
if (camera.pixelRect.Contains(screenPosition) == true)
{
var ray = camera.ScreenPointToRay(screenPosition);
var slope = -ray.direction.z;
if (slope != 0.0f)
{
var point = ray.GetPoint(ray.origin.z / slope);
component = Physics2D.OverlapPoint(point, LayerMask);
if (component != null)
{
worldPosition = component.transform.position;
}
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
case SelectType.CanvasUI:
{
var results = LeanTouch.RaycastGui(screenPosition, LayerMask);
if (results != null && results.Count > 0)
{
var firstTransform = results[0].gameObject.transform;
component = firstTransform;
worldPosition = firstTransform.position;
}
}
break;
case SelectType.ScreenDistance:
{
var bestDistance = MaxScreenDistance * LeanTouch.ScalingFactor;
bestDistance *= bestDistance;
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
if (camera.pixelRect.Contains(screenPosition) == true)
{
foreach (var selectable in LeanSelectable.Instances)
{
var distance = Vector2.SqrMagnitude(GetScreenPoint(camera, selectable.transform) - screenPosition);
if (distance <= bestDistance)
{
bestDistance = distance;
component = selectable;
worldPosition = selectable.transform.position;
}
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
case SelectType.Intersect2D:
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
if (camera.pixelRect.Contains(screenPosition) == true)
{
var ray = camera.ScreenPointToRay(screenPosition);
var count = Physics2D.GetRayIntersectionNonAlloc(ray, raycastHit2Ds, float.PositiveInfinity, LayerMask);
if (count > 0)
{
var firstHit = raycastHit2Ds[0];
component = firstHit.transform;
worldPosition = firstHit.point;
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
}
}
// This will do the actual conversion
public bool TryConvert(ref Vector3 position, Vector2 screenPoint, GameObject gameObject = null, Transform ignore = null)
{
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
switch (Conversion)
{
case ConversionType.FixedDistance:
{
var screenPoint3 = new Vector3(screenPoint.x, screenPoint.y, Distance);
position = camera.ScreenToWorldPoint(screenPoint3);
LastWorldNormal = -camera.transform.forward;
return(true);
}
case ConversionType.DepthIntercept:
{
var ray = camera.ScreenPointToRay(screenPoint);
var slope = -ray.direction.z;
if (slope != 0.0f)
{
var scale = (ray.origin.z - Distance) / slope;
position = ray.GetPoint(scale);
LastWorldNormal = Vector3.back;
return(true);
}
}
break;
case ConversionType.PhysicsRaycast:
{
var ray = camera.ScreenPointToRay(screenPoint);
var hitCount = Physics.RaycastNonAlloc(ray, hits, float.PositiveInfinity, Layers);
var bestPoint = default(Vector3);
var bestDist = float.PositiveInfinity;
for (var i = hitCount - 1; i >= 0; i--)
{
var hit = hits[i];
var hitDistance = hit.distance;
if (hitDistance < bestDist && IsChildOf(hit.transform, ignore) == false)
{
bestPoint = hit.point + hit.normal * Distance;
bestDist = hitDistance;
LastWorldNormal = hit.normal;
}
}
if (bestDist < float.PositiveInfinity)
{
position = bestPoint;
return(true);
}
}
break;
case ConversionType.PlaneIntercept:
{
var plane = default(LeanPlane);
if (Exists(gameObject, ref plane) == true)
{
var ray = camera.ScreenPointToRay(screenPoint);
var hit = default(Vector3);
if (plane.TryRaycast(ray, ref hit, Distance) == true)
{
position = hit;
LastWorldNormal = plane.transform.forward;
return(true);
}
}
}
break;
case ConversionType.PathClosest:
{
var path = default(LeanPath);
if (Exists(gameObject, ref path) == true)
{
var ray = camera.ScreenPointToRay(screenPoint);
if (path.TryGetClosest(ray, ref position, -1, Distance * Time.deltaTime) == true)
{
LastWorldNormal = LeanPath.LastWorldNormal;
return(true);
}
}
}
break;
case ConversionType.AutoDistance:
{
if (gameObject != null)
{
var depth = camera.WorldToScreenPoint(gameObject.transform.position).z;
var screenPoint3 = new Vector3(screenPoint.x, screenPoint.y, depth + Distance);
position = camera.ScreenToWorldPoint(screenPoint3);
LastWorldNormal = -camera.transform.forward;
return(true);
}
}
break;
case ConversionType.HeightIntercept:
{
var ray = camera.ScreenPointToRay(screenPoint);
var slope = -ray.direction.y;
if (slope != 0.0f)
{
var scale = (ray.origin.y - Distance) / slope;
position = ray.GetPoint(scale);
LastWorldNormal = Vector3.down;
return(true);
}
}
break;
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", gameObject);
}
return(false);
}
protected override void OnSelectUp(LeanFinger finger)
{
// Stores the component we hit (Collider or Collider2D)
var component = default(Component);
switch (SelectUsing)
{
case SelectType.Raycast3D:
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var ray = camera.ScreenPointToRay(finger.ScreenPosition);
var hit = default(RaycastHit);
if (Physics.Raycast(ray, out hit, float.PositiveInfinity, LayerMask) == true)
{
component = hit.collider;
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
case SelectType.Overlap2D:
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
var ray = camera.ScreenPointToRay(finger.ScreenPosition);
var count = Physics2D.GetRayIntersectionNonAlloc(ray, raycastHit2Ds, float.PositiveInfinity, LayerMask);
if (count > 0)
{
component = raycastHit2Ds[0].transform;
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
break;
case SelectType.CanvasUI:
{
var results = LeanTouch.RaycastGui(finger.ScreenPosition, LayerMask);
if (results != null && results.Count > 0)
{
component = results[0].gameObject.transform;
}
}
break;
}
// Select the component
Drop(finger, component);
}
protected virtual void Update()
{
// Make sure the camera exists
var camera = LeanHelper.GetCamera(Camera, gameObject);
if (camera != null)
{
// Get the fingers we want to use to translate
var fingers = Use.GetFingers();
if (cachedMeshFilter == null)
{
cachedMeshFilter = GetComponent <MeshFilter>();
}
if (cachedMeshFilter.sharedMesh != null)
{
// Duplicate mesh?
if (deformedMesh == null)
{
deformedMesh = cachedMeshFilter.sharedMesh = Instantiate(cachedMeshFilter.sharedMesh);
}
// Duplicate vertices
if (deformedVertices == null || deformedVertices.Length != cachedMeshFilter.sharedMesh.vertexCount)
{
deformedVertices = cachedMeshFilter.sharedMesh.vertices;
}
var scalingFactor = LeanTouch.ScalingFactor;
var deformed = false;
// Go through all vertices and find the screen point
for (var i = deformedVertices.Length - 1; i >= 0; i--)
{
var worldPoint = transform.TransformPoint(deformedVertices[i]);
var screenPoint = camera.WorldToScreenPoint(worldPoint);
// Go through all fingers for this vertex
for (var j = fingers.Count - 1; j >= 0; j--)
{
var finger = fingers[j];
var scaledDist = Vector2.Distance(screenPoint, finger.ScreenPosition) * scalingFactor;
// Is this finger within the required scaled radius of the vertex?
if (scaledDist <= ScaledRadius)
{
deformed = true;
// Shift screen point
screenPoint.x += finger.ScreenDelta.x;
screenPoint.y += finger.ScreenDelta.y;
// Untransform it back to local space and write
worldPoint = camera.ScreenToWorldPoint(screenPoint);
deformedVertices[i] = transform.InverseTransformPoint(worldPoint);
}
}
}
// If deformed, apply changes
if (deformed == true)
{
deformedMesh.vertices = deformedVertices;
deformedMesh.RecalculateBounds();
deformedMesh.RecalculateNormals();
if (ApplyToMeshCollider == true)
{
if (cachedMeshCollider == null)
{
cachedMeshCollider = GetComponent <MeshCollider>();
}
if (cachedMeshCollider != null)
{
cachedMeshCollider.sharedMesh = null; // Set to null first to force it to update
cachedMeshCollider.sharedMesh = deformedMesh;
}
}
}
}
}
else
{
Debug.LogError("Failed to find camera. Either tag your cameras MainCamera, or set one in this component.", this);
}
}
