public List <IBloxVariable> GetVariablesInBloxScope2(ABlox blox)
{
List <IBloxVariable> variablesInScope = new List <IBloxVariable>();
RootBlox rootBlox = GetRootBlox();
if (rootBlox != null)
{
List <BloxIdent> bloxList = rootBlox.GetChildBloxListInVerticalOrder();
//Params are not loaded in GetChildBloxListInVerticalOrder() method, so we evaluate according to the parent index
//on that case
BloxIdent bloxIdent = bloxList.Find(b => b.blox == (blox.IsParam ? blox.ParentBlox : blox));
BloxIdent bloxIdent2 = bloxList.Where(b => b.blox == (blox.IsParam ? blox.ParentBlox : blox)).FirstOrDefault();
int indexOfBlox = -1;
try
{
indexOfBlox = bloxList.IndexOf(bloxIdent);
}
catch (Exception ex) { }
if (indexOfBlox >= 0)
{
// Gets all the bloxes above this one, that are variables
// Although pure Blox objects cannot be cast as IBloxVariable,
// objects of classes that inherit from Blox, and implement IBloxVariable, can
variablesInScope = bloxList.GetRange(0, indexOfBlox).Where(b => GameObjectHelper.CanBeCastedAs <IBloxVariable>(b.blox)).Select(b => (IBloxVariable)b.blox).ToList();
}
}
return(variablesInScope);
}
/// <summary>
/// From the current blox, gets all the bloxes in scope, in vertical order
/// The first one in list will be the closest to this one, and the last the root
/// Does not consider param bloxes
/// Example:
/// What are the bloxes in scope of c.2.2?
/// root
/// -a
/// --a.1
/// ---a.1.1
/// -b
/// --b.1
/// --b.2
/// -c
/// --c.1
/// ---c.1.1
/// --c.2
/// ---c.2.1
/// ---c.2.2 [c.2.2.p1]
/// ---c.2.3
///
/// Answer: [c.2.1, c.2, c.1, c, b, a, root]
/// The answer shall be the same for c.2.2.p1 (which is a param for c.2.2)
/// </summary>
/// <param name="blox"></param>
/// <returns></returns>
protected List <ABlox> GetBloxesInScope(ABlox blox)
{
// This is the recursion stop condition
if (blox == null || GameObjectHelper.CanBeCastedAs <RootBlox>(blox))
{
return new List <ABlox>()
{
blox
}
}
;
ABlox auxBlox = blox.IsParam ? blox.ParentBlox : blox; //if blox is a param,considers its parent
List <ABlox> scope = new List <ABlox>();
ABlox parentBlox = auxBlox.ParentBlox;
int indexOfBloxInParent = parentBlox.ChildBloxes.IndexOf(auxBlox);
for (int i = indexOfBloxInParent - 1; i >= 0; i--)
{
scope.Add(parentBlox.ChildBloxes[i]);
}
scope.Add(parentBlox);
scope.AddRange(GetBloxesInScope(parentBlox));
return(scope);
}
/// <summary>
/// This method is called when a child is going to be removed.
/// </summary>
/// <param name="blox"></param>
public override void OnBeforeChildRemove(ABlox blox)
{
if (this.BloxParams.Contains(blox))
{
booleanVariablesDropdown.interactable = true;
}
}
public override void OnBeforeChildRemove(ABlox blox)
{
if (this.BloxParams.Contains(blox))
{
ValueField.gameObject.SetActive(true);
}
}
/// <summary>
/// Adds a blox next to this one in parent children
/// </summary>
/// <param name="blox">Blox to add</param>
protected void AddToBottom(ABlox blox)
{
RemoveFromParent(blox);
// Gets the index of this blox in parent
int thisBloxIndex = this.ParentBlox.ChildBloxes.IndexOf(this);
this.ParentBlox.ChildBloxes.Insert(thisBloxIndex + 1, blox);
blox.ParentBlox = this.ParentBlox;
}
/// <summary>
/// Verifies if in a blox scope there is already a variable with a given name.
/// Ignores null or whitespace (returns false when name is null or empty)
/// </summary>
/// <param name="blox"></param>
/// <param name="name"></param>
/// <returns></returns>
public bool VariableExistsInBloxScope(ABlox blox, string name)
{
if (string.IsNullOrWhiteSpace(name))
{
return(false);
}
// From the list of variables available in scope, gets the ones that are not null or empty,
// and counts the number of corresponding cases, and returns true if it is bigger than zero
return(GetVariablesInBloxScope(blox).Where(a => !String.IsNullOrWhiteSpace(a.GetName()) &&
a.GetName().ToLower() == name.ToLower()).Count() > 0);
}
/// <summary>
/// Takes a blox and removes any reference inside it's parent
/// </summary>
/// <param name="blox"></param>
protected void RemoveFromParent(ABlox blox)
{
ABlox originalParent = blox.ParentBlox;
if (originalParent != null)
{
originalParent.OnBeforeChildRemove(blox);
originalParent.ChildBloxes.Remove(blox);
originalParent.BloxParams.Remove(blox);
}
blox.ParentBlox = null;
}
public void NestObject(GameObject secondObject)
{
RootBlox rootBlox = GetRootBlox();
if (rootBlox != null && NestingActive)
{
if (secondObject.GetComponent <ABlox>() != null && secondObject != null && ValidateNesting(secondObject))
{
ABlox secondObjectBlox = secondObject.GetComponent <ABlox>();
Vector2 thisObjectPosition = this.gameObject.transform.position;
Vector2 secondObjectPosition = secondObject.transform.position;
RectTransform gameObjectTransform = this.gameObject.GetComponent <RectTransform>();
RectTransform collidedObjectTransform = secondObject.GetComponent <RectTransform>();
BoundingBox2D thisBBox = GameObjectHelper.getBoundingBoxInWorld(this.gameObject);
BoundingBox2D secondObjBBox = GameObjectHelper.getBoundingBoxInWorld(secondObject);
float thisObjectWidth = GameObjectHelper.getWidthFromBBox(thisBBox);
float secondObjectWidth = GameObjectHelper.getWidthFromBBox(secondObjBBox);
float thisObjectHeight = GameObjectHelper.getHeightFromBBox(thisBBox);
float secondObjectHeight = GameObjectHelper.getHeightFromBBox(secondObjBBox);
//checks if second object top is bellow this object center
if (secondObjBBox.top.y < thisObjectPosition.y)
{
if (!secondObjectBlox.IsParam && ValidateNestToBottom(secondObject) && MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.left.x, thisObjectWidth / 4))
{
AddToBottom(secondObjectBlox);
OnNestToBottom();
}
else if (!secondObjectBlox.IsParam && ValidateNestToBottomIdented(secondObject) && MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.bottom.x, thisObjectWidth / 4))
{
AddToBottomIdented(secondObjectBlox);
OnNestToBottomIdented();
}
}
else //if it is above
{
// Checks if the left parth of the second object is near the right part of the first, and verifies if they are kind of aligned
if (ValidateNestToTheSide(secondObject) && MathHelper.IsNearby(secondObjBBox.left.y, thisBBox.right.y, thisObjectHeight / 4) &&
MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.right.x, thisObjectWidth / 4))
{
// Nest side to side
AddParam(secondObjectBlox);
OnNestToSide();
}
}
OnNest();
SetAllBloxesPositionsOnScreen();
}
}
}
/// <summary>
/// Gets all the variable bloxes on the scope of a blox. They are presented in the following order:
/// the one closest to blox, to the one closest to root.
/// </summary>
/// <param name="blox"></param>
/// <returns></returns>
public List <IBloxVariable> GetVariablesInBloxScope(ABlox blox)
{
List <IBloxVariable> variablesInScope = new List <IBloxVariable>();
RootBlox rootBlox = GetRootBlox();
if (rootBlox != null)
{
List <ABlox> bloxesInScope = blox.GetBloxesInScope(blox);
variablesInScope = bloxesInScope.Where(b => GameObjectHelper.CanBeCastedAs <IBloxVariable>(b)).Select(b => (IBloxVariable)b).ToList();
}
return(variablesInScope);
}
private bool IsBloxAndIsBeingDragged(GameObject gameObject)
{
bool validation = false;
bool isBlox = GameObjectHelper.HasComponent <ABlox>(gameObject);
if (isBlox)
{
ABlox collidedBlox = gameObject.GetComponent <ABlox>();
bool isBeingDragged = collidedBlox.IsBeingDragged;
validation = isBlox && isBeingDragged;
}
return(validation);
}
public void OnBeginDrag(PointerEventData eventData)
{
bloxTransform = GetComponent <RectTransform>();
// When attempting to drag a Blox that is inside the blox bag,
// instead of just dragging we create a new instance and set
// the current one as not inside
if (CheckIfInsideBloxBag())
{
ABlox newInstance = Instantiate(this, this.transform.parent);
this.transform.SetParent(this.transform.parent.parent.parent.parent); //Content, then Viewport then BloxBag then Canvas
//this.InsideBloxBag = false;
}
}
// Update is called once per frame
void Update()
{
if (ABlox.LastClickedBlox != LastClickedBlox)
{
HelpText.text = ABlox.LastClickedBlox.HelpText;
if (ABlox.LastClickedBlox.HelpExampleTexture != null)
{
Image.texture = ABlox.LastClickedBlox.HelpExampleTexture;
Image.gameObject.SetActive(true);
}
else
{
Image.gameObject.SetActive(false);
}
LastClickedBlox = ABlox.LastClickedBlox;
}
}
/// <summary>
/// Positions the blox params on screen
/// </summary>
/// <param name="blox"></param>
protected void SetBloxParamsPositionOnScreen(ABlox blox, float paramSpacing, bool nestingActive = true)
{
ABlox previousBloxInLine = blox;
BoundingBox2D bloxBBox = GameObjectHelper.getBoundingBoxInWorld(blox.gameObject);
float bloxWidth = GameObjectHelper.getWidthFromBBox(bloxBBox);
foreach (ABlox param in blox.BloxParams)
{
param.SetNestingState(nestingActive);
BoundingBox2D paramBBox = GameObjectHelper.getBoundingBoxInWorld(param.gameObject);
float paramWidth = GameObjectHelper.getWidthFromBBox(paramBBox);
Vector2 paramPosition = previousBloxInLine.transform.position;
paramPosition.x += (bloxWidth + paramWidth) / 2 + paramSpacing;
param.transform.position = paramPosition;
previousBloxInLine = param;
}
}
/// <summary>
/// Checks if object passed can be nested to this one, and returns nesting type
/// </summary>
/// <param name="secondObject"></param>
/// <returns></returns>
public NestingType DetermineNestingType(GameObject secondObject)
{
NestingType nestingType = NestingType.NONE;
RootBlox rootBlox = GetRootBlox();
if (rootBlox != null && NestingActive)
{
if (secondObject.GetComponent <ABlox>() != null && secondObject != null && ValidateNesting(secondObject))
{
ABlox secondObjectBlox = secondObject.GetComponent <ABlox>();
Vector2 thisObjectPosition = this.gameObject.transform.position;
BoundingBox2D thisBBox = GameObjectHelper.getBoundingBoxInWorld(this.gameObject);
BoundingBox2D secondObjBBox = GameObjectHelper.getBoundingBoxInWorld(secondObject);
float thisObjectWidth = GameObjectHelper.getWidthFromBBox(thisBBox);
float thisObjectHeight = GameObjectHelper.getHeightFromBBox(thisBBox);
//checks if second object top is bellow this object center
if (secondObjBBox.top.y < thisObjectPosition.y)
{
if (!secondObjectBlox.IsParam && ValidateNestToBottom(secondObject) && MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.left.x, thisObjectWidth / 4))
{
nestingType = NestingType.BOTTOM;
}
else if (!secondObjectBlox.IsParam && ValidateNestToBottomIdented(secondObject) && MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.bottom.x, thisObjectWidth / 4))
{
nestingType = NestingType.BOTTOM_IDENTED;
}
}
else //if it is above
{
// Checks if the left parth of the second object is near the right part of the first, and verifies if they are kind of aligned
if (ValidateNestToTheSide(secondObject) && MathHelper.IsNearby(secondObjBBox.left.y, thisBBox.right.y, thisObjectHeight / 4) &&
MathHelper.IsNearby(secondObjBBox.left.x, thisBBox.right.x, thisObjectWidth / 4))
{
// Nest side to side
nestingType = NestingType.SIDE;
}
}
}
}
return(nestingType);
}
// Start is called before the first frame update
void Start()
{
Vector3 pivotPos = Pivot.position;
int col = 0;
int row = 0;
ABlox previousBlox = null;
foreach (ABlox blox in AvailableBloxes)
{
blox.transform.SetParent(Content);
float previousBloxWidth = 0;
if (previousBlox == null)
{
previousBlox = blox;
}
else
{
BoundingBox2D pbBBox = GameObjectHelper.getBoundingBoxInWorld(previousBlox.gameObject);
previousBloxWidth = GameObjectHelper.getWidthFromBBox(pbBBox);
}
BoundingBox2D bloxBBox = GameObjectHelper.getBoundingBoxInWorld(blox.gameObject);
float bloxWidth = GameObjectHelper.getWidthFromBBox(bloxBBox);
float bloxHeight = GameObjectHelper.getHeightFromBBox(bloxBBox);
Vector3 newPos = pivotPos;
newPos.x += col * (previousBloxWidth + margin) + bloxWidth / 2;
newPos.y -= row * (bloxHeight + margin);
blox.transform.position = newPos;
if (col > 0)
{
row++;
col = 0;
}
else
{
col++;
}
}
}
/// <summary>
/// Sets the position of child bloxes and param bloxes of parent
/// </summary>
protected void SetChildBloxesPositionOnScreen(ABlox parentBlox, float bloxVerticalSpacing, float identSpacing, float paramSpacing, bool nestingActive = true)
{
BoundingBox2D parentBBox = GameObjectHelper.getBoundingBoxInWorld(parentBlox.gameObject);
Vector2 parentBloxLeft = parentBBox.left;
// Gets all the nodes (except the ones nested to the side and parent)
List <BloxIdent> bloxIdentList = parentBlox.GetChildBloxListInVerticalOrder();
ABlox previousBlox = parentBlox;
// Sets the parent blox params
SetBloxParamsPositionOnScreen(parentBlox, paramSpacing, nestingActive);
foreach (BloxIdent bloxIdent in bloxIdentList)
{
ABlox blox = bloxIdent.blox;
int ident = bloxIdent.ident;
Vector2 previousBloxPosition = previousBlox.transform.position;
BoundingBox2D previousBloxBBox = GameObjectHelper.getBoundingBoxInWorld(previousBlox.gameObject);
BoundingBox2D bloxBBox = GameObjectHelper.getBoundingBoxInWorld(blox.gameObject);
float bloxWidth = GameObjectHelper.getWidthFromBBox(bloxBBox);
// Determines the vertical distance of this blox to the previous one
float previousBloxHeight = GameObjectHelper.getHeightFromBBox(previousBloxBBox);
float verticalOffset = previousBloxHeight / 2 + bloxVerticalSpacing;
Vector2 newPosition = blox.transform.position;
newPosition.y = previousBloxPosition.y - verticalOffset;
// Determines the horizontal offset of this blox based on its ident
newPosition.x = parentBloxLeft.x + bloxWidth / 2 + ident * identSpacing;
blox.transform.position = newPosition;
// Sets the params bloxes positions
SetBloxParamsPositionOnScreen(blox, paramSpacing, nestingActive);
ABlox previousBloxInLine = blox;
previousBlox = blox;
}
}
public virtual void OnEndDrag(PointerEventData eventData)
{
IsBeingDragged = false;
print("End dragging");
ResetHightlight();
if (collidedObjects.Count > 0)
{
// Although we are saving all the simultaneous collisions
// We only want this object to nest with the highest ones
float maxY = collidedObjects.Max(c => c.transform.position.y);
List <GameObject> highestObjects = collidedObjects.Where(c => c.transform.position.y == maxY).Select(a => a.gameObject).ToList();
foreach (GameObject collidedObject in highestObjects)
{
//If the collided object is a blox, attempts nesting
if (GameObjectHelper.HasComponent <ABlox>(collidedObject))
{
ABlox blox = collidedObject.GetComponent <ABlox>();
blox.NestObject(this.gameObject);
}
//If the collied object is the trashbin, destroys this blox
else if (GameObjectHelper.HasComponent <Trashbin>(collidedObject))
{
RemoveFromParent(this);
Destroy(this.gameObject);
}
}
}
else
{
SetAllBloxesPositionsOnScreen();
}
}
/// <summary>
/// This method is called when a blox is going to be eliminated from parent
/// </summary>
public virtual void OnBeforeChildRemove(ABlox blox)
{
}
protected void AddParam(ABlox param)
{
RemoveFromParent(param);
BloxParams.Add(param);
param.ParentBlox = this;
}
/// <summary>
/// Adds blox as a child of this blox
/// </summary>
/// <param name="blox"></param>
protected void AddToBottomIdented(ABlox blox)
{
RemoveFromParent(blox);
this.ChildBloxes.Insert(0, blox);
blox.ParentBlox = this;
}
