Text Box Button

Assets/Scripts/TextBoxButton.cs

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+using UnityEngine;
+using System.Collections;
+using UnityEngine.UI;
+
+public class TextBoxButton : MonoBehaviour 
+{
+	public GameObject textBox;
+	public GameObject TextButton;
+
+	public Text theText;
+
+	public TextAsset textFile;
+	public string[] textLines;
+
+
+	public int currentLine = 0;
+	public int endAtLine;
+
+	GameObject player;
+	bool playerContact = false;
+
+	private bool isTyping = false;
+	private bool cancelTyping = false;
+	public float typeSpeed;
+
+// !for text file, create an empty line for the first line and last line to prevent an array error!
+	void Start ()
+	{
+		textBox.SetActive (false);
+
+		if (textFile != null) //making sure there's text
+		{
+			textLines = (textFile.text.Split('\n')); //splits text whenever there is a new line
+		}
+
+		if (endAtLine == 0) // create empty lines at the end so Array error does not occur
+		{
+			endAtLine = textLines.Length - 1; // last line of text, one less because of array
+		}
+	}
+
+	void OnTriggerStay2D(Collider2D c)
+	{
+		if(playerContact == true && Input.GetKeyDown(KeyCode.E))
+		{
+			textBox.SetActive (true); // make text box appear
+		}
+	}
+
+	void OnTriggerEnter2D(Collider2D col)
+	{
+		if (col.tag == "Player") 
+		{
+			playerContact = true;
+		}
+	}
+
+	void OnTriggerExit2D(Collider2D col)
+	{
+		if (col.tag == "Player") 
+		{
+			playerContact = false;
+		}
+	}
+
+	// Update is called once per frame
+	void Update ()
+	{
+		//theText.text = textLines [currentLine];//gets text from file
+
+		if (playerContact == true && Input.GetKeyDown(KeyCode.E)) //press E for next line
+		{
+			if (currentLine >= endAtLine) 
+			{
+				Destroy(TextButton, 0.0F);//make text button disappear prevents array error
+			}
+
+			if (!isTyping) 
+			{
+				currentLine += 1; // play next line
+
+				if (currentLine > endAtLine) //after last line
+				{ 
+					textBox.SetActive (false); // makes text box disappear
+				} 
+				else 
+				{
+					StartCoroutine (TextScroll (textLines [currentLine]));
+				}
+			}
+			else if (isTyping && !cancelTyping) 
+			{
+				cancelTyping = true;
+			}
+
+
+		}
+
+
+	}
+
+	private IEnumerator TextScroll (string lineOfText) //making words appear word by word
+	{
+		int letter = 0;
+		theText.text = ""; //display nothing on textbox
+		isTyping = true;
+		cancelTyping = false;
+		while (isTyping && !cancelTyping && (letter < lineOfText.Length - 1))
+		{
+				theText.text += lineOfText[letter];
+				letter += 1; // next letter
+				yield return new WaitForSeconds(typeSpeed); // waiting for text to appear
+		}
+		theText.text = lineOfText; //print whole line of text on screen
+
+		isTyping = false;
+		cancelTyping = false;
+	}
+
+}

Assets/TextBox/TestText.txt

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+
+This is a Text Press E to continue
+Press E again to make this disappear
+Are you even trying, Press E again
+Ok one more time
+Ok ok last one this should be the last time