All content in this course uses:

Moving the Player

 In the second Roll-a-ball tutorial, you’ll:

Add a Rigidbody to the Player sphere, so you can use the Unity physics engine

Write your own PlayerController script in C#, to make the sphere respond to player input

Add_a_Rigidbody_to_the_Player-Transcript.txt

Create_a_new_script-Transcript.txt

Add_input_data_to_the_Player-Transcript.txt

Apply_force_to_the_Player-Transcript.txt

Fix_the_Player_movement_speed-Transcript.txt

Add-a-Player-Input-Component-Transcript.txt

Write_the_OnMove_function_Declaration-Transcript.txt

By the end of this tutorial, your game will look something like this: 

To use this tutorial, you will need a Unity project with a Scene containing the ball and the surface it rolls on. If you haven’t already created these, start with the tutorial 

Overview

Follow the video or text instructions below to add a 

, then search for "Rigidbody" and add the 

Add a Rigidbody to the Player 

Follow the video or text instructions below to add the 

Add a Player Input component

Follow the video or text instructions below to create a new 

1.  Create a new PlayerController script.

 window, create a new folder named "Scripts".

then name the new script "PlayerController".

The created script asset will be at the root level of the 

 window to open it in your preferred script editor, usually Visual Studio.

Create a new script

Follow the video or text instructions below to delete the Update function, add the InputSystem namespace, and add the OnMove function:

Add the following line of code to the top of the script under the existing namespaces:

 function but before the final curly brace, add a new line and add the following code:

Write the OnMove function declaration

Follow the video or text instructions below to set the movement vector, assign a new Rigidbody variable, and add a FixedUpdate function:

 function, add the following line of code: 

 function, add the following line of code to declare a new variable: 

 function, add the following line of code to assign the variable’s value:

Apply input data to the Player

Follow the video or text instructions below to add force to the player, add x and y movement variables, assign those variables, finalize the 

If the Editor shows an error, you can ignore it for now. 


 variable you created earlier, add two more private variables called movementX and movementY of type float:

 function, add the following two lines of code:

 function, add the following new line at the top of the function: 

GameObject should move, but slowly — you’ll fix that in the next step.

Apply force to the Player

Follow the video or text instructions below to declare a new speed variable, multiply the force by speed, increase the speed in the 

Create a new public float variable at the top of the script: 

3.  Increase the speed in the Inspector window.

GameObject should now move at a more reasonable speed. 

You can adjust the speed up or down if you want.

Fix the Player movement speed

If your script is not working as expected, below is an example of what your code should look like at this point. The comments have been added to make the code more readable. 


Unity Version 6.0