IArticyFlowPlayerCallbacksOnBranchesUpdated Method

void OnBranchesUpdated(
	IList<Branch> aBranches
)

using System.Collections.Generic;
using Articy.Unity;
using Articy.Unity.Interfaces;
using UnityEditor;
using UnityEngine;
using UnityEngine.UI;

public class BranchingExampleScript : MonoBehaviour, IArticyFlowPlayerCallbacks
{
    public void OnFlowPlayerPaused(IFlowObject aObject)
    {
        var dspName = aObject as IObjectWithDisplayName;
        if (dspName != null)
            Debug.Log(dspName.DisplayName);
        var menuTxt = aObject as IObjectWithMenuText;
        if (menuTxt != null)
            Debug.Log(menuTxt.MenuText);
        var text = aObject as IObjectWithText;
        if (text != null)
            Debug.Log(text.Text);
    }

    // this will be called when we have new branches and we want to display each branch as a button on the screen
    public void OnBranchesUpdated(IList<Branch> aBranches)
    {
        // delete all old buttons from previous branches
        var oldButtons = FindObjectsOfType<Button>();
        foreach (var btn in oldButtons)
            Destroy(btn.gameObject);

        var pos = new Vector3(0, 0, 0);

        // now we create for every branch a button
        foreach (var branch in aBranches)
        {
            // if a branch is not valid, we don't want to create a button for it
            if (!branch.IsValid) continue;

            // build a label depending on the target
            string buttonLabel = "Unknown";

            // to give the button a nice label, we use the object interfaces and check which one is the most appropriate
            var dspName = branch.Target as IObjectWithDisplayName;
            if (dspName != null)
                buttonLabel = dspName.DisplayName;
            var text = branch.Target as IObjectWithText;
            if (text != null)
                buttonLabel = text.Text;
            var menuTxt = branch.Target as IObjectWithMenuText;
            if (menuTxt != null)
                buttonLabel = menuTxt.MenuText;

            Branch localBranch = branch; // necessary when we iterate over it (modified closure)
            // create the button
            CreateButton(pos, buttonLabel, () => ButtonClick(localBranch.BranchId));
            // modify our position for the next button, so we create a simple vertical list of buttons.
            pos = new Vector3(0, pos.y - 64, 0);
        }

        // this is very rough code and would in its current form delete everytime all buttons found in the scene
        // The code would be a lot easier and cleaner with prefabs, but then would be difficult to show in a script only example.
    }

    // called when a button is clicked, this makes sure t
    void ButtonClick(int aId)
    {
        // if one of our branch button is clicked, we just tell our flow player to continue with the traversal
        GetComponent<ArticyFlowPlayer>().Play(aId);
    }

    // create a new button with label, position and click handler
    public Button CreateButton(Vector3 position, string aLabel, UnityEngine.Events.UnityAction method)
    {
        var buttonObj = new GameObject("Button");

        var buttonTransform = buttonObj.AddComponent<RectTransform>();
        var btn = buttonObj.AddComponent<Button>();
        buttonObj.transform.position = position;
        buttonTransform.sizeDelta = new Vector2(200, 64);
        buttonTransform.SetParent(FindObjectOfType<Canvas>().transform, false);

        var image = buttonObj.AddComponent<Image>();
        image.sprite = AssetDatabase.GetBuiltinExtraResource<Sprite>("UI/Skin/UISprite.psd");
        image.type = Image.Type.Sliced;
        image.color = Color.white;

        var textObj = new GameObject("ButtonLabel");
        var textTransform = textObj.AddComponent<RectTransform>();
        var text = textObj.AddComponent<Text>();
        text.color = Color.black;
        text.font = Resources.GetBuiltinResource<Font>("Arial.ttf");
        text.alignment = TextAnchor.MiddleCenter;

        textTransform.anchorMin = Vector2.zero;
        textTransform.anchorMax = Vector2.one;
        textTransform.sizeDelta = Vector2.zero;

        GameObjectUtility.SetParentAndAlign(textObj, buttonObj);

        btn.onClick.AddListener(method);
        text.text = aLabel;
        return btn;
    }
}