/// <summary>
/// Places a <see cref="UICodeblock"/> under another one.
/// </summary>
private void PlaceUnderCodeblock(UICodeblock item, UICodeblock parent)
{
float yPos = -parent.GetComponent <RectTransform>().sizeDelta.y;
item.transform.SetParent(parent.transform);
item.PositionController.TargetLocalPosition = new Vector3(0, yPos);
}
private void GenerateEntryBlock()
{
Transform transform = UICodeblock.GenerateEntryBlock().transform;
transform.SetParent(Parent, false);
transform.position = new Vector3(Screen.width * Random.value, Screen.height * Random.value);
}
private T TestBlockCreation <T>() where T : CodeblockItem
{
CodeblockItem x = System.Activator.CreateInstance <T>();
Transform transform = UICodeblock.Generate(x).transform;
transform.SetParent(Parent, false);
transform.position = new Vector3(Screen.width * Random.value, Screen.height * Random.value);
return(x as T);
}
public void RemoveFromContent(UICodeblock item)
{
item.transform.SetParent(_handle);
item.PositionController.TargetLocalPosition = item.PositionController.LocalPosition;
RectTransform rt = item.GetComponent <RectTransform>();
foreach (InputContent content in FindObjectsOfType <InputContent>())
{
content.UpdateEvaluateableProperty();
}
}
public void InsertIntoInputContent(UICodeblock item, InputContent content)
{
item.transform.SetParent(content.DropArea);
item.PositionController.TargetLocalPosition = new Vector3(0, 0);
RectTransform rt = item.GetComponent <RectTransform>();
rt.anchorMin = Vector2.zero;
rt.anchorMax = Vector2.one;
rt.sizeDelta = Vector2.zero;
content.UpdateEvaluateableProperty();
}
/// <summary>
/// Detaches an item from its parent, inside the collection and in the UI.
/// </summary>
public void DetachItem(UICodeblock item)
{
// Update the codeblock collection
List <UICodeblock> blocks = new List <UICodeblock>()
{
item
};
blocks.AddRange(item.GetComponentsInChildren <UICodeblock>().Where(b => b.Type == UICodeblock.UIBlockType.Executable));
CurrentSystem.Blocks.DetachItemRange(blocks.Select(b => b.Source).ToArray());
// Update the transform hierarchy
item.transform.SetParent(_handle);
item.PositionController.TargetLocalPosition = item.PositionController.LocalPosition;
}
/// <summary>
/// Inserts an item into the codeblock collection, given a previous sibling as a parent. Pass null to set the item as the entry block.
/// </summary>
public void InsertItem(UICodeblock item, UICodeblock previousSibling)
{
// Check if the previous sibling has a next sibling
var nextSiblings = previousSibling.GetComponentsInChildren <UICodeblock>().Where(b => b.Type == UICodeblock.UIBlockType.Executable);
UICodeblock nextSibling = nextSiblings.Count() > 1 ? nextSiblings.ElementAt(1) : null;
// Update the codeblock collection
List <UICodeblock> blocks = new List <UICodeblock>();
blocks.AddRange(item.GetComponentsInChildren <UICodeblock>().Where(b => b.Type == UICodeblock.UIBlockType.Executable));
CurrentSystem.Blocks.InsertItemRange(blocks.Select(b => b.Source).ToArray(), previousSibling.Source);
// Update the transform hierarchy
PlaceUnderCodeblock(item, previousSibling);
// If there is a next sibling, place it after the last child of the new item
if (nextSibling != null)
{
PlaceUnderCodeblock(nextSibling, blocks.Last());
}
}
/// <summary>
/// Dynamically generates a UI codeblock.
/// </summary>
public static UICodeblock Generate(CodeblockItem source)
{
UIBlockType type = GetBlockType(source);
string name =
source != null
? $"Dynamic UI Codeblock [{ type.ToString() }] ({ source.Identity.ID })"
: $"Entry Codeblock";
string requiredPrefab = System.Enum.GetName(typeof(UIBlockType), (int)type);
GameObject prefab = Resources.Load <GameObject>($"Codeblock_{requiredPrefab}");
GameObject blockObject = Instantiate(prefab);
blockObject.name = name;
UICodeblock codeblock = blockObject.GetComponent <UICodeblock>();
codeblock.Source = source;
return(codeblock);
}
public virtual void OnPointerUp(PointerEventData eventData)
{
if (eventData.button == PointerEventData.InputButton.Left)
{
if (Type != UIBlockType.Entry)
{
if (Type == UIBlockType.Executable)
{
UICodeblock[] blocksInDropArea = CodeblockInspectionStructure.Instance.GetBlocksInDropArea(_transform.GetWorldRect());
UICodeblock validPreviousSibling = blocksInDropArea.FirstOrDefault(b => b.Type == UIBlockType.Executable || b.Type == UIBlockType.Entry || b.Type == UIBlockType.ControlFlow);
if (validPreviousSibling != null)
{
if (validPreviousSibling != this)
{
CodeblockInspectionStructure.Instance.InsertItem(this, validPreviousSibling);
}
}
else
{
CodeblockInspectionStructure.Instance.DetachItem(this);
}
}
if (Type == UIBlockType.Evaluateable)
{
InputContent[] contentsInDropArea = CodeblockInspectionStructure.Instance.GetContentsInDropArea(_transform.GetWorldRect());
InputContent leftmostInput = contentsInDropArea.OrderBy(c => c.transform.position.x).FirstOrDefault();
if (leftmostInput != null)
{
CodeblockInspectionStructure.Instance.InsertIntoInputContent(this, leftmostInput);
}
}
}
}
}