fungus/Assets/Fungus/Scripts/Commands/ReadTextFile.cs

// This code is part of the Fungus library (http://fungusgames.com) maintained by Chris Gregan (http://twitter.com/gofungus).
// It is released for free under the MIT open source license (https://github.com/snozbot/fungus/blob/master/LICENSE)

using UnityEngine;
using Fungus;
using Fungus.Variables;

namespace Fungus.Commands
{
    /// <summary>
    /// Reads in a text file and stores the contents in a string variable.
    /// </summary>
    [CommandInfo("Variable",
                 "Read Text File",
                 "Reads in a text file and stores the contents in a string variable")]
    public class ReadTextFile : Command
    {
        [Tooltip("Text file to read into the string variable")]
        [SerializeField] protected TextAsset textFile;

        [Tooltip("String variable to store the tex file contents in")]
        [VariableProperty(typeof(StringVariable))]
        [SerializeField] protected StringVariable stringVariable;

        public override void OnEnter() 
        {
            if (textFile == null || 
                stringVariable == null) 
            {
                Continue();
                return;
            }

            stringVariable.Value = textFile.text;

            Continue();
        }

        public override string GetSummary()
        {
            if (stringVariable == null)
            {
                return "Error: Variable not selected";
            }

            if (textFile == null)
            {
                return "Error: Text file not selected";
            }

            return stringVariable.Key;
        }
        
        public override bool HasReference(Variable variable)
        {
            return (variable == stringVariable);
        }
        
        public override Color GetButtonColor()
        {
            return new Color32(253, 253, 150, 255);
        }
    }
}