Skip to main content

Gdevelop Game Debugger and Profiler Tutorial

Gdevelop Game Debugger and Profiler


In this post we will learn how to use Debugger. It helps us remove bugs from our game. A bug is basically a error or fault in our game that makes game work in in intended. A debugger helps remove bugs from our game.

Debugger 

 Its a tool that is used to inspect the variables and objects of game at runtime. It gives us information about the objects and variables in the game. By using this information we can track the bugs in our game. It Debugger as it helps us remove the bugs from our game. 

Using Debugger we can inspect global variables, scene variables and variables of instances of  objects in the game. We can then analyse this information to find problems in our logic and game.


How to Launch game with the debugger

To use the debugger, we need to launch the game preview using the Debugger. To do this just go to the toolbar of a scene editor, click on the “Debug” icon and then choose “Preview with debugger and performance profiler” option in menu. This will launch a preview of your game and open a new tab called “Debugger” along with it .






Inspecting and Editing

Once you the game is running you can see that an extra tab called Debugger is opened. There you will see the "Inspectors" window on left side of screen. In this click refresh button. This will open 
list of Global Variables and the Scenes,

You can find information about the instance of object and Variables. Just Click on the Section to expand it. You can inspect and edit the variables in general tab.



Remember you will need to click refresh to see updated values.

For Example , I have opened platformer example. I will check how the score variable changes using debugger.
I run the game with debugger and click refresh button. Now I can go to the  Scene->New Scene-> Scene Variable to check score which is currently 0.

 Now I go to game preview and collect a coin to increase it by 100. I go back to Debugger to see if has changed. Again I have to click refresh button to see changes. It shows 100 as expected. I can change this by click on it and changing it to lets say 1000 and then click the tick mark on side to confirm.

 If I now go back to game, the score has now changed to 1000.

Profiler

Profiler in gdevelop tell how much time is spent on parts of engine at runtime. This basically tells you what is using more resources and helps you optimize your game. it can help minimize the lag and bottlenecks by measuring the time spent different part of your game.

Profiler will be at the bottom of screen. Click on Start Profiling button to launch the profiler. After few seconds you can stop the profiler. It can show you measurement of 60 frames at the max which will take 10 seconds to measure at 60FPS. Total no of frames are shown at the top of table.

There games parts of game are shown as section in table these are, Objects (pre-events),Events ,
Objects (post-events) ,Objects (visibility),Render.

Where the Objects section shows the time spent running behaviors before(pre-events) and after(post-events) the events and time spent checking which objects will be rendered (visibility).


There are three columns in table these are, 
  1.  total time spent in this section during the time of the profiling.
  2.  percent of time spent in this section compared to the parent. 
  3.  percent of time spent in this section compared to the total time.

I hope you found it useful. Please subscribe our youtube channel for more such tutorials­čÖé.

Comments

Post a Comment

Popular posts from this blog

Gdevelop: How to manually export to android or ios using Cordova

In this post we will see how to export your Gdevelop project to android or ios manually using cordova. Gdevelop provides a web service for export to android or ios. But it is a paid service it only provides 2 exports/day. By paying for subscription you support developement of Gdevelop but it you don't want to pay, Gdevelop provides you with an offline option. We will see how we can export Gdevelop project as a Cordova project and build it using a cordova by ourselves locally on our computer. Obviously for FREE!!. Lets get started. Prerequisite  I am assuming you have Android SDK installed on computer.If not then download it and install it first. I am not covering it here as it is a general thing and you can find plenty of tutorials and also that it will make this post unnecessarily longer. Also cordova requires node.js installed on your computer..Installing is as easy as downloading the installer and running. Link :  https://nodejs.org/en/ After installing the node.js

Gdevelop 5 : How to Find Distance Between Two Objects

In this Post we will learn how to find distance between two objects in Gdevelop 5. Many times we are required to find distance between two objects Gdevelop provides inbuilt functionality for this purpose just let's get started. Creating A Project We will start by  creating an empty  project.  So click on create a new project and name it distance between two objects.  Let's quickly add a scene and a sprite. Let's add another sprite. I will also add text to display the distance between these two sprites.  Let's add these objects to the scene.Now let's head over to the event sheet and Add an event.The condition will be empty and action will to display the distance. So choose the distance choose->modify text and operator be set to equal and click on then expression button. We first have to convert expression to string choose conversion and then number to text. Click on the expression button and then search square root. Click on expression button again and this time

[Inkscape] : How to import inkscape SVGs in Html file

[Inkscape To Web]: Make beautiful sites with SVGs In this tutorial we will make a SVG drawing in Inkscape and will use it in a webpage. The goal of this tutorial is to know how to make beautiful SVG Drawing for your website. Before starting you should have following things, Familiarity with SVGs/Inkscape and HTML  Inkscape Installed. How to Embbed Step 1: Open Inkscape. Now make a simple Shape. I am making a polygon,                                       [Click on the Image to Enlarge] Step 2: Now save it as a svg. The inkscape saves its files as svgs but it is not compatiable with html. It a lot Inkscape specific(useless) data. To save it as plain Svg. Click on File->Save as. Then from dropdown box in the dialog box. Choose the .PlainSvg.  [Click on the Image to Enlarge] Step 3: Now open your favorite code editor i am using the brackets. Now open this .svg File that we just saved using Inkscape.   [Click on the Image to Enlarge]

How to make Make money with Inkscape

How to make Make money with Inkscape Inkscape is a free and open source but professional vector graphics editing program for Windows, Linux and Macintosh. A Free alternative to Adobe Illustrator and is used by a lot of enthusiasts, art students and artist all around the world. Ah.. you knew this already? Right!! Otherwise why would you read this post. So here are the ways to make money with inkscape. Selling Vectors This is an obvious one but not as easy as it seems, you see there is a lot of competition, you will  hundreds of sites if not thousands for selling vectors with tens of thousands of sellers on them also it's not that you can sell anything made with inkscape you need to follow some standards.For example here is an article which might be helpful, http://sellingvector.blogspot.com/p/how-to-start-selling-vectors.html?m=1 Tutorials If you want to know more about how to sell vectors created in inkscape then you should read

Blender 3D Graph Builder Addon Tutorial

Graph Builder Addon lets you generate 3D Bar Graphs from simple values. The bars can have simple animation.In this tutorial,I will be making a simple 3D graph in blender with this Addon. You can download the addon on Github and download the data that I am going to use  and end result from here , in case you want to follow along . Though you can use any data you want, just make sure data values are integer and each value is separated by a comma.  Just to give you an idea Graph Builder addon work like this.   Installation Just extract the file. Open Blender and go to user preferences and select “install from the file”. Then locate and choose the graph.py file. Tutorial: There are 4 panels in the addon. We will go to them one by one and see what are their usage. Step1:  Copy Data into the data values and set the factor. Here, you want to enter the values that will be used to draw the graph. Each value represents a bar on the graph. Values must be s

A Quick Look at Machine learning

A Quick Look at Machine learning Ever heard of ‘Artificial intelligence’, of course you did after all we all watch sci-fi movies. But if you ever tried to know more about AI then you might have heard about Machine learning. Also in past few years it's been a hot topic in computer science. So, what is machine learning??. Let's talk about this…, Computer are everywhere today, even in your pocket (your phone).They help us do a lot of thing but in reality these are just calculators with logic and control circuitry.Therefore we can program them to do different tasks.But there are scenarios where we cannot predict the situation and its nearly impossible to program the computer for that.For instance , CCTV Cameras are installed at many places and surveillance has become very easy as it can be done remotely but we need a human to process the video from the cameras as a computer cannot tell us if everything is ok or not.Now imagine if the computer can automatically dete