Console.cs

using UnityEngine;
using System;
using System.Collections.Generic;

/// <summary>
/// A console that displays the contents of Unity's debug log.
/// </summary>
/// <remarks>
/// Developed by Matthew Miner (www.matthewminer.com)
/// Permission is given to use this script however you please with absolutely no restrictions.
/// 
/// FPS counter added in this fork
/// Align added
/// </remarks>
public class DebugConsole : MonoBehaviour
{
    public static readonly Version version = new Version(1, 2);

    public enum Align
    {
        TopLeft,
        TopRight,
        BottomLeft,
        BottomRight
    }

    public Align align = Align.BottomLeft;

    struct ConsoleMessage
    {
        public readonly string message;
        public readonly string stackTrace;
        public readonly LogType type;

        public ConsoleMessage(string message, string stackTrace, LogType type)
        {
            this.message = message;
            this.stackTrace = stackTrace;
            this.type = type;
        }
    }

    public KeyCode toggleKey = KeyCode.BackQuote;

    List<ConsoleMessage> entries = new List<ConsoleMessage>();
    Vector2 scrollPos;
    bool show;
    bool collapse;

    // Visual elements:

    const int margin = 20;
    Rect windowRect = new Rect(margin, margin, 300, 400);

    GUIContent clearLabel = new GUIContent("Clear", "Clear the contents of the console.");
    GUIContent collapseLabel = new GUIContent("Collapse", "Hide repeated messages.");

    // fps counter
    public double updateInterval = 0.5F;
    private double lastInterval;
    private int frames = 0;
    private double fps;

    void OnEnable() { Application.RegisterLogCallback(HandleLog); }
    void OnDisable() { Application.RegisterLogCallback(null); }

    void Start()
    {
        lastInterval = Time.realtimeSinceStartup;
        frames = 0;
        
        if (align == Align.BottomRight || align == Align.TopRight)
            windowRect.x = Screen.width - windowRect.width - margin;

        if (align == Align.BottomLeft || align == Align.BottomRight)
            windowRect.y = Screen.height - windowRect.height - margin;
    }

    void Update()
    {
        if (Input.GetKeyDown(toggleKey))
        {
            show = !show;
        }

        // Calculation of FPS
        if (show)
        {
            ++frames;
            float timeNow = Time.realtimeSinceStartup;
            if (timeNow > lastInterval + updateInterval)
            {
                fps = frames / (timeNow - lastInterval);
                frames = 0;
                lastInterval = timeNow;
            }
        }
    }

    void OnGUI()
    {
        if (!show)
        {
            return;
        }

        windowRect = GUILayout.Window(123456, windowRect, ConsoleWindow, "FPS: " + fps.ToString("f0"));
    }

    /// <summary>
    /// A window displaying the logged messages.
    /// </summary>
    /// <param name="windowID">The window's ID.</param>
    void ConsoleWindow(int windowID)
    {

        scrollPos = GUILayout.BeginScrollView(scrollPos);



        // Go through each logged entry
        for (int i = entries.Count - 1; i >= 0; i--)
        {
            ConsoleMessage entry = entries[i];

            // If this message is the same as the last one and the collapse feature is chosen, skip it
            if (collapse && i > 0 && entry.message == entries[i - 1].message)
            {
                continue;
            }

            // Change the text colour according to the log type
            switch (entry.type)
            {
                case LogType.Error:
                case LogType.Exception:
                    GUI.contentColor = Color.red;
                    break;

                case LogType.Warning:
                    GUI.contentColor = Color.yellow;
                    break;

                default:
                    GUI.contentColor = Color.white;
                    break;
            }

            GUILayout.Label(entry.message);
        }

        GUI.contentColor = Color.white;

        GUILayout.EndScrollView();

        GUILayout.BeginHorizontal();

        // Clear button
        if (GUILayout.Button(clearLabel))
        {
            entries.Clear();
        }

        // Collapse toggle
        collapse = GUILayout.Toggle(collapse, collapseLabel, GUILayout.ExpandWidth(false));

        GUILayout.EndHorizontal();

        // Set the window to be draggable by the top title bar
        GUI.DragWindow(new Rect(0, 0, 10000, 20));
    }

    /// <summary>
    /// Logged messages are sent through this callback function.
    /// </summary>
    /// <param name="message">The message itself.</param>
    /// <param name="stackTrace">A trace of where the message came from.</param>
    /// <param name="type">The type of message: error/exception, warning, or assert.</param>
    void HandleLog(string message, string stackTrace, LogType type)
    {
        ConsoleMessage entry = new ConsoleMessage(message, stackTrace, type);
        entries.Add(entry);
    }
}