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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
namespace UNEB
{
public abstract class NodeConnection : ScriptableObject
{
public static readonly Vector2 kMinSize = new Vector2(12f, 12f);
public static readonly Vector2 kMinHalfSize = kMinSize / 2f;
[HideInInspector]
public Rect bodyRect = new Rect(Vector2.zero, kMinSize);
public System.Func<object> getValue;
public static System.Action<NodeConnection> OnConnectionCreated;
[SerializeField, HideInInspector]
protected Node parentNode;
void OnEnable()
{
hideFlags = HideFlags.HideInHierarchy;
}
public virtual void Init(Node parent)
{
name = "connection";
parentNode = parent;
}
/// <summary>
/// The node associated with this knob.
/// </summary>
public Node ParentNode
{
get { return parentNode; }
}
public abstract GUIStyle GetStyle();
public virtual void OnConnectionGUI(int order)
{
OnNameGUI();
// Position the knobs properly for the draw pass of the knobs in the editor.
float yPos = parentNode.HeaderTop + order * GetStyle().fixedHeight + Node.kKnobOffset;
bodyRect.center = new Vector2(GetNodeAnchor(), 0f);
bodyRect.y = yPos;
}
public virtual void OnNameGUI()
{
GUILayout.Label(Content, GetStyle());
}
private GUIContent _content;
private GUIContent Content
{
get
{
if (_content == null) {
_content = new GUIContent(name);
}
return _content;
}
}
/// <summary>
/// What side of the node should the knob anchor to.
/// </summary>
/// <returns></returns>
public abstract float GetNodeAnchor();
/// <summary>
/// Attempts to get the value of the specified type.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public T GetValue<T>()
{
if (getValue != null) {
return (T)getValue();
}
return default(T);
}
}
}
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