How Do I Add Scripting Symbols in Unity?


Scott Campbell

Adding Scripting Symbols in Unity

Unity allows developers to add scripting symbols to their projects. These symbols are preprocessor directives that enable specific features or configurations during the compilation process.

In this tutorial, we will explore how to add scripting symbols in Unity and leverage their power to enhance our game development workflow.

Step 1: Opening the Player Settings

To add scripting symbols in Unity, we need to access the Player Settings. Follow these steps:

  1. Open your Unity project.
  2. Navigate to the top menu and click on “Edit”.
  3. From the dropdown menu, select “Project Settings” and then “Player”.
  4. The Player Settings window should now be open.

Step 2: Modifying Scripting Define Symbols

Once we have the Player Settings window open, we can proceed with adding or modifying scripting symbols. Here’s how:

  1. In the Player Settings window, scroll down until you find the section labeled “Other Settings”.
  2. Look for the field named “Scripting Define Symbols”. This is where we can enter our desired symbols.
  3. To add a new symbol, simply append it to any existing symbols, separating each symbol with a semicolon (;).
    • Note: Make sure not to include any spaces between symbols.


      If you want to add a scripting symbol called “DEBUG_MODE”, and you already have an existing symbol “ENABLE_LOGGING”, your Scripting Define Symbols field should look like this:


      Once you have added or modified the scripting symbols, Unity will use these directives during the compilation process to enable or disable specific sections of code. This can be extremely useful for conditional compilation and managing different build configurations.

      Step 3: Utilizing Scripting Symbols

      Now that we have added our scripting symbols, we can utilize them in our code. Here’s an example of how to use them with conditional compilation:

      #if DEBUG_MODE
          Debug.Log("Debug mode is enabled!");

      In this example, the enclosed code will only be compiled and executed if the “DEBUG_MODE” scripting symbol is defined. If the symbol is not present, this section of code will be excluded from the final build.


      Adding scripting symbols in Unity can greatly enhance our development workflow by allowing us to enable or disable specific features or configurations during compilation. By following the steps outlined in this tutorial, you now have the knowledge to effectively utilize scripting symbols in your Unity projects.

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