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Christoher Randin

Is it recommended to use Unity's Character Motor Script

0 posts in this topic

I am in the process of creating the controls for my game which is a 3D modeled platform environment with 2D physics restrictions. I was using Unity's platform script and it didn't feel right as to how I wanted it.
So I am wondering if I need to put in the character motor script. So far I am just using the Character Controller component and adding in my own applied gravity, I will eventually add restrictions on movable platform object and more.

I understand the character motor a little bit, but I have only actually played with Unity for about a week and worked on the 3D platform tutorial, provided by Unity, getting a sense of the type of game I want to make and a 2D Mario copy using Unity, by WalkerBoysStudios.

So, far everything seems to be decently fine, my only problems i guess is with the animation part, but I have to flesh that out a bit more.

I was also wondering if I am using appropriate Unity functions for what I am trying to achieve or if there are better alternatives to what I am doing. I like to accept all criticism, but focus on my logic and implementation please.

This is my player controller script:

import UnityEngine

[RequireComponent( CharacterController )]

public class TwoDPlatformControllerJumping (  ):
	// Can the character jump?
	public enabled as bool = true;

	// How high do we jump when pressing jump and letting go immediately
	public baseHeight as single = 1.0;
	// We add extraHeight units (meters) on top when holding the button down longer while jumping
	public extraHeight as single = 4.1;
class TwoDPlatformController ( MonoBehaviour ): 
	//public 	test  = TwoDPlatformControllerJumping()  Access another class while also appear in inspector
	public walkSpeed   as single     = 6.0F
	public runSpeed	   as single     = 10.0F
	public jumpSpeed   as single     = 8.0F
	public gravity     as single     = 20.0F
	public doubleJumpEnabled  as bool= true
	public extraJump as int 		 = 1
	private moveDirection as Vector3 = Vector3.zero
	private curNumJump    as int     = 0
	private curSpeed      as single  = 0.0F
	internal jumped       as bool    = false
	private jumpingApexReached as bool = false
	private controller as CharacterController

	def Update():
	def PlayerMovement ():
		controller = GetComponent(CharacterController)
		// While character is grounded allow to jump and horizontal movement
		// Player is restricted in jump movement.  One way jump if double jump disabled
		if controller.isGrounded:
			curNumJump = 0
			jumped = false
			// Assign run speed when pressing left ctrl
			if Input.GetKey(KeyCode.LeftControl):
				curSpeed = runSpeed
			// Assign default walk speed
				curSpeed = walkSpeed
			// Apply vector direction, only focusing on X- axis
			moveDirection = Vector3( Input.GetAxis('Horizontal') * curSpeed, 0, 0 )
			// If player has jumped
			// Allow player to single jump while in air
			// Check if player has reached jump apex, used for animation states
			if hasSingleJumped():
		// Player is in the air
		// Allow the player the option of extra jumping, already checks if extra jumping is enabled
		// Check if player has reached jump apex, used for animation states
		// TODO: Future implementation, allow user to shoot while in air
			if hasExtraJumped():

		// Apply new vector direction to the character controller
		controller.Move( moveDirection * Time.deltaTime )
	def SingleJump ():
	// Immediately present number of allowed mid air jumps when landed
	// Allow player to jump
		moveDirection.y = jumpSpeed
		jumped = true
	def ExtraJump ():
	// Allow player the capability to jump multiple times in mid air
	//  Number of times is based on 'extraJump'
	//  Once limit is reach player must land before jumping again
	// When jumping horizontal movement is unlocked for that jump then it will be locked again
		if curNumJump < extraJump:
			moveDirection = Vector3( Input.GetAxis('Horizontal') * walkSpeed, 0, 0 )
			moveDirection.y = jumpSpeed
			curNumJump += 1	
	def ApplyGravityForce ():
		moveDirection.y -= ( gravity * Time.deltaTime )
	def HandleEvents ():
	// Events taken place are of action types: shooting, special attacks, interactable object, etc
	def hasSingleJumped ():
		return ( Input.GetButtonDown( 'Jump' ) or Input.GetKeyDown( 'w' ) ) 
	def hasExtraJumped  ():
		return ( Input.GetButtonDown( 'Jump' ) or Input.GetKeyDown( 'w' )  and doubleJumpEnabled )
	def hasReachedJumpingApex ():
		if jumped and controller.velocity.y <= 0.0:
			jumpingApexReached = true
			return jumpingApexReached
			if controller.isGrounded:
				jumpingApexReached = false
				return jumpingApexReached
	def getSpeed ():
		return moveDirection.x


and player animation controller script:

import UnityEngine

class CharacterAnimationController (MonoBehaviour): 

	public idleAnimation as AnimationClip;
	public walkAnimation as AnimationClip;
	public runAnimation as AnimationClip;
	public jumpPoseAnimation as AnimationClip;
	private jumpingApexReached as bool = false
	private jumpani            as bool = false
	def Start ():
		//Player will always start idle animation
	def Update ():
		controller = GetComponent(TwoDPlatformController)
		// TODO: Add character rotation when changing directions
		// Play run animation if player's velocity is greater than walk speed
		if Mathf.Abs( controller.getSpeed() ) > controller.walkSpeed :
		//Play walk Animation if moving in left or rigt direction
		elif Mathf.Abs( controller.getSpeed() ) > 0.1:
		//Play idle animation if no movement on X- axis and has not jumped
			if not controller.jumped:

		// If player has just jumped and has not yet reached it's apex animate jump animation
		if controller.hasSingleJumped() or controller.hasExtraJumped() and not controller.hasReachedJumpingApex():
			animation.CrossFade(jumpPoseAnimation.name, 0.1F)
		// If player is still in air and has reached apex, player falling animation, but for now set to walk animation
		if controller.jumped and controller.hasReachedJumpingApex():


I will find a place where I could upload the files if someone is interested in testing it out and helping me with a more hands on approach.


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