Unity3D – Character Controller – Move – Basic – JS
Character Controller is a special Unity3D component for characters. You can use this to control first person or third person characters.
Rotate around Y, move forward/backward
We are going to create a script to:
– Rotate around y axis -> using right/left arrow
– Move forward/backward -> using up/down arrow
Let’s go on!
Create a scene with:
– Main Camera
– (parent)Empty Object
– (child) Character Geometry, your .fbx
– (child) Props of the Character, your .fbx
– PlayerController.js
PlayerController.js:
#pragma strict
// Attach this script to the player
// Rotate around y axis - using right/left arrow
// Move forward - using up/down arrow
// It request CharacterController component
@script RequireComponent(CharacterController)
var speed : float = 3.0; // move speed
var rotateSpeed : float = 3.0; // rotate speed
function Update () {
// Get the component
var controller : CharacterController = GetComponent(CharacterController);
// Rotate around y axis - using right/left arrow START -----------
transform.Rotate(0, Input.GetAxis ("Horizontal") * rotateSpeed, 0);
// Rotate around y axis - using right/left arrow END -------------
// Move forward / backward START ---------------------------------
var forward : Vector3 = transform.TransformDirection(Vector3.forward);
var curSpeed : float = speed * Input.GetAxis ("Vertical");
// .SimpleMove forward - using up/down arrow
controller.SimpleMove(forward * curSpeed);
// Move forward / backward END -----------------------------------
}// END Update()
Move forward/sideways, jump
Change the script to:
– Move the character controller forward and sideways based on the arrow keys.
– Jump when pressing space.
#pragma strict
/// Attach this script to your player
/// This script moves the character controller forward
/// and sideways based on the arrow keys.
/// It also jumps when pressing space.
/// Make sure to attach a character controller to the same game object.
/// It is recommended that you make only one call to Move or SimpleMove per frame.
// It request CharacterController component
@script RequireComponent(CharacterController)
var speed : float = 6.0; // the speed of the character
var jumpSpeed : float = 8.0; // the jump speed
var gravity : float = 20.0; // the gravity
private var moveDirection : Vector3 = Vector3.zero; // shorthand for writing Vector3(0, 0, 0).
function Update() {
// Get the component CharacterController
var controller : CharacterController = GetComponent(CharacterController);
// if touching the ground during the last move
if (controller.isGrounded) {
// We are grounded, so recalculate
// move direction directly from axes START -----------------------
moveDirection = Vector3(Input.GetAxis("Horizontal"), 0,
Input.GetAxis("Vertical"));
moveDirection = transform.TransformDirection(moveDirection);
moveDirection *= speed;
// move direction directly from axes END -------------------------
// jump START ----------------------------------------------------
if (Input.GetButton ("Jump")) {
moveDirection.y = jumpSpeed;
}
// jump END ------------------------------------------------------
}// END if .isGrounded
// Apply gravity
moveDirection.y -= gravity * Time.deltaTime;
// Move the controller
controller.Move(moveDirection * Time.deltaTime);
}// END Update()
Move as 2.5D Platform – single jump
Change the script to:
– Move the character controller sideways XY plane, based on the left/right arrow keys.
– Jump when pressing space.
#pragma strict
/// 2.5D platform Character Controller - single jump
/// Attach this script to your player
/// This script moves the character controller
/// sideways based on the left/right arrow keys.
/// It also jumps when pressing space.
/// Make sure to attach a character controller to the same game object.
/// It is recommended that you make only one call to Move or SimpleMove per frame.
// It request CharacterController component
@script RequireComponent(CharacterController)
var speed : float = 6.0; // the speed of the character
var jumpSpeed : float = 8.0; // the jump speed
var gravity : float = 20.0; // the gravity
private var moveDirection : Vector3 = Vector3.zero; // shorthand for writing Vector3(0, 0, 0).
function Update() {
// Get the component CharacterController
var controller : CharacterController = GetComponent(CharacterController);
// if touching the ground during the last move
if (controller.isGrounded) {
// We are grounded, so recalculate
// move direction directly from axes START -----------------------
moveDirection = Vector3(Input.GetAxis("Horizontal"), 0,
0);
moveDirection = transform.TransformDirection(moveDirection);
moveDirection *= speed;
// move direction directly from axes END -------------------------
// jump START ----------------------------------------------------
if (Input.GetButton ("Jump")) {
moveDirection.y = jumpSpeed;
}
// jump END ------------------------------------------------------
}// END if .isGrounded
// Apply gravity
moveDirection.y -= gravity * Time.deltaTime;
// Move the controller
controller.Move(moveDirection * Time.deltaTime);
}// END Update()
Inspector> setup Speed, Jump Speed, Gravity vars
Notice:
moveDirection = Vector3(Input.GetAxis("Horizontal"), 0, 0);
I have removed GetAxis(“Vertical”)
Move as 2.5D Platform – double jump (Air Jump)
Change the script to:
– Move the character controller sideways XY plane, based on the left/right arrow keys.
– Ground jump and Air jump
#pragma strict
/// 3D and 2.5D platform Character Controller
/// http://blog.lucedigitale.com
/// Author: Andrea Tonin
/// Attach this script to your player
/// This script moves the character controller
/// sideways based on the left/right arrow keys.
/// It also jumps when pressing space.
/// Make sure to attach a character controller to the same game object.
/// It is recommended that you make only one call to Move or SimpleMove per frame.
// It request CharacterController component
@script RequireComponent(CharacterController)
var speed : float = 6.0; // the speed of the character
var jumpSpeed : float = 8.0; // the jump speed
var gravity : float = 20.0; // the gravity
var canJump : boolean = true; // the player can jump, uncheck to disable jump
var disableZMov : boolean = true;// disable Z movement
var falling : boolean = false; // the player is falling down
var apex : float; // max relative height to perform an Air Jump -> Assign in Inspector
// (apice) la massima altezza relativa all'interno della quale può innestare l'Air Jump
var MaxJumpHeight : float; // max absolute height to perform an Air Jump -> calculate into Update()
private var moveDirection : Vector3 = Vector3.zero; // shorthand for writing Vector3(0, 0, 0).
function Update() {
// Get the component CharacterController
var controller : CharacterController = GetComponent(CharacterController);
// Move direction directly from axes START ########################################
// if touching the ground during the last move
if (controller.isGrounded) {// We are grounded
if (disableZMov)
// use it to move in 2.5D space
moveDirection = Vector3(Input.GetAxis("Horizontal"), 0, 0);
if (!disableZMov)
// use it to move in 3D space
moveDirection = Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
moveDirection = transform.TransformDirection(moveDirection);
moveDirection *= speed;
}// END if .isGrounded
// Move direction directly from axes END ############################################
// Jump START #######################################################################
// GROUND Jump START -------------------------------------------------------
// salta se ----------- --------------> è a terra AND è abilitato a saltare
if (Input.GetButton ("Jump") && controller.isGrounded && canJump) {
// record Y position...
var RecPositionY : float = transform.position.y;
// calculate the absolute height in the world space to be able Air Jump
MaxJumpHeight = RecPositionY + apex;
// perform your best jump
moveDirection.y = jumpSpeed;
} // END if
// AIR Jump START ----------------------------------------------------------
// salta se -------------------------------> è in aria AND è abilitato a saltare AND non sta cadendo AND non ha superato l'altezza del primo salto
if (Input.GetButton ("Jump") && !controller.isGrounded && canJump && !falling && transform.position.y <= MaxJumpHeight) {
moveDirection.y = jumpSpeed;
} // END if
// Jump END ###########################################################################
// Apply gravity
moveDirection.y -= gravity * Time.deltaTime;
// Move the controller
controller.Move(moveDirection * Time.deltaTime);
// others useful datas --------------------------------------------
// The speed from gravity or jumping
var verticalSpeed : float = controller.velocity.y;
// Non ho bisogno di altri controlli perchè .velocity è relativa e non tiene conto del movimento indotto da altri oggetti, ad esempio una piattaforma mobile
if (verticalSpeed < 0)
falling = true; // the Character Controller is falling
if (verticalSpeed >= 0)
falling = false;
// debug code
Debug.Log("Posizione Y" + transform.position.y + "Altezza Max" + MaxJumpHeight);
}// END Update()
Inspector> setup all vars
Notice:
...
var apex : float; // max relative height to perform an Air Jump -> Assign in Inspector
var MaxJumpHeight : float; // max absolute height to perform an Air Jump -> calculate into Update()
...
// Jump START #######################################################################
// GROUND Jump START -------------------------------------------------------
// salta se ----------- --------------> è a terra AND è abilitato a saltare
if (Input.GetButton ("Jump") && controller.isGrounded && canJump) {
// record Y position...
var RecPositionY : float = transform.position.y;
// calculate the absolute height in the world space to be able Air Jump
MaxJumpHeight = RecPositionY + apex;
// perform your best jump
moveDirection.y = jumpSpeed;
} // END if
// AIR Jump START ----------------------------------------------------------
// salta se -------------------------------> è in aria AND è abilitato a saltare AND non sta cadendo AND non ha superato l'altezza del primo salto
if (Input.GetButton ("Jump") && !controller.isGrounded && canJump && !falling && transform.position.y <= MaxJumpHeight) {
moveDirection.y = jumpSpeed;
} // END if
// Jump END ###########################################################################
For italian people, come funziona?
1. – Input.GetButton (“Jump”) && controller.isGrounded – dal salto da terra, registro la Y assoluta di partenza – RecPositionY
2. – Input.GetButton (“Jump”) && !controller.isGrounded – dal salto in aria, controllo che l’altezza max del primo salto non venga superata – transform.position.y <= MaxJumpHeight -
