There are several ways that this we can accomplish this, but the two simplest ways are: It’s important to note that our controller and character classes must communicate with each other.
#Unity 3d character controller how to#
How to Communicate Between Character Controller and Character As mentioned, we want two controllers, one for the player and one for the AI. Now we have our Character class we need to create our controllers. Instead, just be aware that Character is a script that defines a set of public methods that control how it behaves: WalkRight, WalkLeft, StopWalkingAnimation, and Jump.
#Unity 3d character controller code#
If ( > _maxJumpHeight & currentState = JumpStates.Rising)Įlse if ( < _startYPosition & currentState = JumpStates.Falling)ĭon’t worry about the specifics of what the code does to make the character walk or jump. Private void SetJumpState(ref JumpStates currentState, float yPosition, float jumpHeight) _jumpSpeed = (_jumpHeight / _jumpTime) * 2 Multiply by 2 as the character also has to come back down. Speed = distance / time so _jumpHeight / _jumpTime gives us speed we need to move character Transform.Translate(transform.right * -_walkSpeed * ltaTime) _animator.SetFloat("WalkingLeft", -_walkSpeed) Transform.Translate(transform.right * _walkSpeed * ltaTime) _animator.SetFloat("WalkingRight", _walkSpeed) Var newPosition = _jumpDirection * _jumpSpeed * ltaTime SetJumpState(ref _currentState,, _maxJumpHeight) Private Vector3 _jumpDirection = Vector3.up Private JumpStates _currentState = JumpStates.None It’s in the character class and not the controller classes that I will define all the data needed to control the character, such as walking speed.Īlso note I add a StopWalkingAnimation method that is there to stop the animator from playing the walking animations when the character is no longer moving. If you read carefully over the requirements defined in the previous section, you might already know what classes we need to create.įirst, we need a Character class that has the following behaviours: jump, walk left, walk right. I also want to allow the player to switch between the two characters with the press of a button. One controlled by the player, the other by an AI which follows the player around. To showcase how the use of controllers can become useful, I want to have two characters in the game. In this platformer the character can walk left and right and be able to jump.
In this article, we will look at creating a character controller for a 2D platformer. Defining the Requirements for our Character Controller Character Controller Project Screenshotīefore, diving into the code, it’s best to set out what exactly we want to make. Whether it’s the player, AI, or even a customer controller with a more specific purpose in mind, such as for testing. It is now possible to swap out what controls a character in the game. Making use of a controller involves taking the logic for handling input out of the class or classes that store data and behaviour.īy separating the data that represents our character, the model, with what controls it, the controller, we have the freedom to easily change what controls the character. To allow a player to control this character, there also needs to be logic that performs these behaviours after listening to specific input. This data might be in the form of walk speed or jumping height. A character might have behaviours such as walking and jumping and data that describes how the behaviours perform. In practical terms, this means that code concerned with handling input would exist separately to the code that doesn’t. A controller is a concept taken from the MVC architectural pattern that involves separating what we control with how we control it. In this article, we will look at learning how to create a character controller in Unity and the benefits to using controllers.
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