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Testing in Play mode

Learn to enter Play mode and test the scene.

Play mode

The Play button on the Toolbar starts the game and switches the scene into Play mode. In Play mode the scene runs like a real game; you can still select objects and watch their values. When the test is over, press the same button again to return to Edit mode.

Edit modu -> nesneleri duzenlersin
Play modu -> sahneyi test edersin

When the Play button turns blue, you know the game is running.

Reset

Changes you make in Play mode are not permanent. When you exit Play, the scene returns to the state it had before you pressed Play; this is called a reset. Because of this, you should always make lasting changes in Edit mode.

Play  -> kupun konumunu degistir
Cikis -> konum eski haline doner

For example, if you move the cube during Play, it will be back at its old place when you exit.

Practice Print the scene test

Define an array named testler holding "Kamera", "Isik", and "Kup". With a loop, print a line for every test in the form Test: Kamera - gecti (the name changes per line). Add a final line Sahne testi tamamlandi. Expected output:

Test: Kamera - gecti
Test: Isik - gecti
Test: Kup - gecti
Sahne testi tamamlandi

Starter code

Player.cs
using System;

class Test {
    static void Main() {
        // "Kamera", "Isik", "Kup" adlarini bir diziye koy
        // Her oge icin "Test: ad - gecti" satirini yazdir
        // En sona kapanis satirini ekle
    }
}

Sample solution

Player.cs
using System;

class Test {
    static void Main() {
        string[] testler = { "Kamera", "Isik", "Kup" };
        foreach (string test in testler) {
            Console.WriteLine("Test: " + test + " - gecti");
        }
        Console.WriteLine("Sahne testi tamamlandi");
    }
}

Expected output

Test: Kamera - gecti
Test: Isik - gecti
Test: Kup - gecti
Sahne testi tamamlandi

Questions and answers

Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.

1 What happens when you press the Play button?

  • The scene is saved permanently
  • All objects are removed from the scene
  • A new project is created
  • The scene switches to Play mode and the game runs Correct answer

Explanation: The Play button starts the game; the scene enters Play mode and the objects start behaving like in a game.

2 The result of exiting Play

Question 
string cikisSonucu = "____";
Answer 
string cikisSonucu = "konum eski haline doner";

Explanation: Changes made in Play mode are not permanent; when you exit Play, the scene returns to its previous state.

3 Play mode terms

Term Meaning
Play düğmesi Starts and stops the game
Play modu The state where the scene is tested
Edit modu The state where objects are edited
Reset Reverts the changes made during Play

All lessons in Beginner

1 What is game development?

  1. Intro to game development
  2. Game engines
  3. 2D and 3D games
  4. The game loop
  5. The scene concept
  6. Summary - Game dev fundamentals

2 Unity setup

  1. Installing Unity Hub
  2. Creating your first project
  3. The editor interface
  4. Toolbar and playback
  5. Saving the project
  6. Summary - Unity setup

3 First scene project

  1. Project overview
  2. Camera and light
  3. Your first cube in the scene
  4. Adding a material
  5. Testing in Play mode
  6. Summary - First scene

4 The GameObject concept

  1. What is a GameObject?
  2. Components
  3. The Hierarchy window
  4. Editing with the Inspector
  5. Tags and Layers
  6. Summary - GameObject

5 C# script basics

  1. Your first C# script
  2. using and namespace
  3. Class structure
  4. Variables and types
  5. Output with Debug.Log
  6. Summary - C# basics

6 MonoBehaviour

  1. What is MonoBehaviour?
  2. The Start method
  3. The Update method
  4. Awake vs Start
  5. SerializeField and public
  6. Summary - MonoBehaviour

7 Transform

  1. What is Transform?
  2. Changing position
  3. Moving with Translate
  4. Changing rotation
  5. Local vs world space
  6. Summary - Transform

8 Input

  1. The Input class
  2. Axis input
  3. Mouse input
  4. The new Input System
  5. Movement vector
  6. Summary - Input

9 Physics (Rigidbody/Collider)

  1. What is a Rigidbody?
  2. What is a Collider?
  3. Applying force with AddForce
  4. Collision events
  5. Trigger events
  6. Summary - Physics

10 2D Sprite

  1. What is a Sprite?
  2. SpriteRenderer
  3. Sprite import settings
  4. Sprite sorting
  5. Preparing sprite animation
  6. Summary - 2D Sprite

11 Godot basics

  1. The Godot editor
  2. A new project
  3. The scene tree
  4. The Node concept
  5. Saving the project
  6. Summary - Godot basics

12 GDScript

  1. What is GDScript?
  2. extends and variables
  3. Function definition
  4. Output with print
  5. Type hints
  6. Summary - GDScript

13 Node and Scene

  1. Node2D and Sprite2D
  2. Saving a scene
  3. Scene instance
  4. The _ready method
  5. The _process method
  6. Summary - Node and Scene

14 Beginner final

  1. Challenge 1: Print a score
  2. Challenge 2: Movement vector
  3. Challenge 3: Godot ready
  4. Challenge 4: Collision log
  5. Challenge 5: Final synthesis