/**
* Builds a neat button given its iteration count.
*/
private void BuildButton(DialogueNode node, int i, string decision)
{
// figure out of the button is enabled or not.
var isEnabled = node.CheckConstraintAt(i);
var isEnabledText = isEnabled ? "" : " [too dumb]";
var buttonPanel = Instantiate(choiceField) as GameObject; // build a button
buttons.Add(buttonPanel); // register the button
var rectTransform = buttonPanel.transform as RectTransform;
buttonPanel.transform.SetParent(baseCanvas.transform); // nest it properly in the object hirachy
// ReSharper disable once PossibleNullReferenceException
rectTransform.anchoredPosition = Vector2.down * (i % 3) * (rectTransform.rect.height + 10) * 0.5f; // move it around a bit
var rows = (node.Outputs.Count - 1) / 3;
var pos = i / 3;
if (rows > 0) // if we have more than one single row, we have to move it (move it!)
{
rectTransform.anchoredPosition += Vector2.left * 340;
rectTransform.anchoredPosition += Vector2.right * pos * 340;
}
var buttonText = buttonPanel.GetComponentInChildren <Text>();
if (buttonText == null)
{
Debug.LogError("FATAL: Nodegraph ButtonText is null");
}
else
{
buttonText.text = decision + isEnabledText;
}
var button = buttonPanel.GetComponent <Button>();
button.onClick.AddListener(() => { // And register an EventListener when the button is clicked.
state = InterfaceState.Dirty;
if (isEnabled)
{
GetNext(i);
}
});
}