Adding a run speed to a character controller.

Unity Engine
1

I have created a basic script for walking and rotating the camera for my character controller. I now want to make the character run but cant get this to work.

I thought along the lines of checking to see if the character is grounded and if the b button on the controller is pressed to multiply my walk speed by a run speed variable.

like below

using UnityEngine;
using System.Collections;

[RequireComponent (typeof(CharacterController))]
public class WalkAndRun : MonoBehaviour {
	
	
	//Variables
	public float walk_Speed = 5.0f;
	public float run_speed = 2.0f;
	public float side_Speed = 4.0f;
	
	public float leftRight_Rotation_Sensitivity = 5.0f;
	public float upDown_Rotation_Sensitivity = 5.0f;
	public float upDownRange = 60.0f;
	
	float verticalRotation = 0;
	float verticalVelocity = 0;
	CharacterController characterController;
	
	
	
	// Use this for initialization
	void Start () {
		//Makes the mouse cursor disapear when testing the game.
		Screen.lockCursor = true;
		characterController = GetComponent<CharacterController>();
	}
	
	// Update is called once per frame
	void Update () {
		
		
	
		//--Rotation--
		
		//Look left and right.
		//A float we name 'rotLeftRight' will use the axis of 'Mouse X' (the left and right) to...
		float rotLeftRight = Input.GetAxis("Mouse X") * leftRight_Rotation_Sensitivity;
		//...rotate around the 'y' axis. x=0, y=our float called 'rotLeftRight', and z=0.
		transform.Rotate(0, rotLeftRight, 0);

		//Look up and down.
		//Caps the range we can look up and down.
		verticalRotation -= Input.GetAxis("Mouse Y") * upDown_Rotation_Sensitivity;
		verticalRotation = Mathf.Clamp(verticalRotation, -upDownRange, upDownRange);
		//Grab the main camera and its rotation
		Camera.main.transform.localRotation = Quaternion.Euler(verticalRotation, 0, 0);
		
		
		

		//--Movement--
		
		//Walk forwards and backwards, and left and right.
		
		//Our forward speed comes from the Vertical axis.
		float walkSpeed = Input.GetAxis("Vertical") * walk_Speed;
		//Our side speed comes from our Horizontal axis.
		float sideSpeed = Input.GetAxis("Horizontal") * side_Speed;
		//And then use the above to create a Vector3 called 'speed' with x,y,z...
		Vector3 speed = new Vector3( sideSpeed, verticalVelocity, walkSpeed );
		//Our current speed is our rotation multiplied by our speed. This makes sure our character is moves in the right direction no matter the rotation.
		speed = transform.rotation * speed;
		
		//Run
		if (characterController.isGrounded  Input.GetButtonDown("joystick button 0")
			walkSpeed = walk_Speed * run_speed;
		
		
		//Gravity
		verticalVelocity += Physics.gravity.y * Time.deltaTime;
		
		characterController.Move( speed * Time.deltaTime );
	}
}

forgive me if this is something really simple that I have/haven’t done but I am pretty new to unity and programming. Thanks.

2

I’m not a code guru yet, but it looks u want to overwrite your walk speed and then use the same variable to work on on the movement.
Try to move your script on lines 67 and 68 to line 56.

3

Hey grim thanks for the reply.
Would you be able to elaberate on what you meant by overwriting my walk speed?
Thanks

4

this is what u do:

float walkSpeed = Input.GetAxis("Vertical") * walk_Speed;
// other code using walkSpeed

walkSpeed = walk_Speed * run_speed;
// do some other stuff dont use walkSpeed again

try this:

//--Movement--
        //Walk forwards and backwards, and left and right.

        //Run

        if (characterController.isGrounded  Input.GetButtonDown("joystick button 0")

            walkSpeed =  Input.GetAxis("Vertical")  * walk_Speed * run_speed;
        else

              //Our forward speed comes from the Vertical axis.

             float walkSpeed = Input.GetAxis("Vertical") * walk_Speed;

        
         //Our side speed comes from our Horizontal axis.

        float sideSpeed = Input.GetAxis("Horizontal") * side_Speed;

        //And then use the above to create a Vector3 called 'speed' with x,y,z...

        Vector3 speed = new Vector3( sideSpeed, verticalVelocity, walkSpeed );

        //Our current speed is our rotation multiplied by our speed. This makes sure our character is moves in the right direction no matter the rotation.

        speed = transform.rotation * speed;

       //Gravity

        verticalVelocity += Physics.gravity.y * Time.deltaTime;

       

        characterController.Move( speed * Time.deltaTime );

remember, im not a pro :wink: might be im writing sh***

1 Like