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using System.Collections.Generic;
using System.Linq;
using UnityEngine;
namespace UNEB
{
public class NodeInput : NodeConnection
{
[SerializeField]
private bool _bCanHaveMultipleConnections;
[SerializeField]
private List<NodeOutput> _outputs = new List<NodeOutput>();
private GUIStyle _style;
public virtual void Init(Node parent, bool multipleConnections = true)
{
base.Init(parent);
name = "input";
_bCanHaveMultipleConnections = multipleConnections;
}
/// <summary>
/// Should only be called by NodeOutput
/// </summary>
/// <param name="output"></param>
internal void Connect(NodeOutput output)
{
if (!_outputs.Contains(output))
_outputs.Add(output);
}
/// <summary>
/// Should only be called by NodeOutput.
/// </summary>
internal void Disconnect(NodeOutput output)
{
if (_outputs.Contains(output))
_outputs.Remove(output);
}
public bool HasOutputConnected()
{
return _outputs.Count > 0;
}
public void RemoveAll() {
// Cache the outputs since in order to disconnect them,
// they must be removed from _outputs List.
var outputs = new List<NodeOutput>(_outputs);
_outputs.Clear();
foreach (NodeOutput output in outputs) {
output.Remove(this);
}
}
public List<NodeOutput> Outputs
{
get { return _outputs; }
}
public int OutputCount
{
get { return _outputs.Count; }
}
public NodeOutput GetOutput(int index)
{
return _outputs[index];
}
public override GUIStyle GetStyle()
{
if (_style == null) {
_style = new GUIStyle();
_style.fixedHeight = kMinSize.y + Node.kKnobOffset;
_style.alignment = TextAnchor.MiddleLeft;
_style.normal.textColor = Color.white * 0.9f;
_style.padding.left = (int)kMinHalfSize.x + 5;
}
return _style;
}
/// <summary>
/// The input is anchored at the left side of the node.
/// </summary>
/// <returns></returns>
public override float GetNodeAnchor()
{
return parentNode.bodyRect.xMin;
}
public bool bCanHaveMultipleConnections
{
get { return _bCanHaveMultipleConnections; }
}
public static NodeInput Create(Node parent, bool multipleConnections = false)
{
var input = ScriptableObject.CreateInstance<NodeInput>();
input.Init(parent, multipleConnections);
NodeConnection.OnConnectionCreated(input);
return input;
}
}
}
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