You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
186 lines
5.9 KiB
186 lines
5.9 KiB
using UnityEngine;
|
|
using UnityEngine.Events;
|
|
|
|
public class CharacterController2D : MonoBehaviour
|
|
{
|
|
[SerializeField] private float m_JumpForce = 400f; // Amount of force added when the player jumps.
|
|
[SerializeField] private float m_WallJumpMultiplier = 3f; // Amount of force added when the player jumps off a wall.
|
|
[Range(0, 1)] [SerializeField] private float m_CrouchSpeed = .36f; // Amount of maxSpeed applied to crouching movement. 1 = 100%
|
|
[Range(0, .3f)] [SerializeField] private float m_MovementSmoothing = .05f; // How much to smooth out the movement
|
|
[SerializeField] private bool m_AirControl = false; // Whether or not a player can steer while jumping;
|
|
[SerializeField] private LayerMask m_WhatIsGround; // A mask determining what is ground to the character
|
|
[SerializeField] private Transform m_GroundCheck; // A position marking where to check if the player is grounded.
|
|
[SerializeField] private Transform m_CeilingCheck; // A position marking where to check for ceilings
|
|
[SerializeField] private Transform m_WallCheck;
|
|
[SerializeField] private Collider2D m_CrouchDisableCollider; // A collider that will be disabled when crouching
|
|
|
|
const float k_GroundedRadius = .2f; // Radius of the overlap circle to determine if grounded
|
|
private bool m_Grounded; // Whether or not the player is grounded.
|
|
private bool m_TouchingWall;
|
|
const float k_CeilingRadius = .2f; // Radius of the overlap circle to determine if the player can stand up
|
|
private Rigidbody2D m_Rigidbody2D;
|
|
private bool m_FacingRight = true; // For determining which way the player is currently facing.
|
|
private Vector3 m_Velocity = Vector3.zero;
|
|
private enum Direction { NA=0, L, R };
|
|
private Direction m_LastWallJumpDirection = Direction.NA;
|
|
|
|
[Header("Events")]
|
|
[Space]
|
|
|
|
public UnityEvent OnLandEvent;
|
|
|
|
[System.Serializable]
|
|
public class BoolEvent : UnityEvent<bool> { }
|
|
|
|
public BoolEvent OnCrouchEvent;
|
|
private bool m_wasCrouching = false;
|
|
|
|
private void Awake()
|
|
{
|
|
m_Rigidbody2D = GetComponent<Rigidbody2D>();
|
|
|
|
if (OnLandEvent == null)
|
|
OnLandEvent = new UnityEvent();
|
|
|
|
if (OnCrouchEvent == null)
|
|
OnCrouchEvent = new BoolEvent();
|
|
}
|
|
|
|
private void FixedUpdate()
|
|
{
|
|
CheckGrounded();
|
|
CheckTouchingWall();
|
|
}
|
|
|
|
private void CheckGrounded()
|
|
{
|
|
bool wasGrounded = m_Grounded;
|
|
m_Grounded = false;
|
|
|
|
Collider2D[] colliders = Physics2D.OverlapCircleAll(m_GroundCheck.position, k_GroundedRadius, m_WhatIsGround);
|
|
for (int i = 0; i < colliders.Length; i++)
|
|
{
|
|
if (colliders[i].gameObject != gameObject)
|
|
{
|
|
m_Grounded = true;
|
|
if (!wasGrounded)
|
|
OnLandEvent.Invoke();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void CheckTouchingWall()
|
|
{
|
|
m_TouchingWall = false;
|
|
|
|
if(!m_Grounded)
|
|
{
|
|
if(Physics2D.OverlapCircle(m_WallCheck.position, 0.2f, m_WhatIsGround))
|
|
{
|
|
m_TouchingWall = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
public void Move(float move, bool crouch, bool jump)
|
|
{
|
|
// If crouching, check to see if the character can stand up
|
|
if (!crouch)
|
|
{
|
|
// If the character has a ceiling preventing them from standing up, keep them crouching
|
|
{
|
|
crouch = true;
|
|
}
|
|
}
|
|
|
|
//only control the player if grounded or airControl is turned on
|
|
if (m_Grounded || m_AirControl)
|
|
{
|
|
|
|
// If crouching
|
|
if (crouch)
|
|
{
|
|
if (!m_wasCrouching)
|
|
{
|
|
m_wasCrouching = true;
|
|
OnCrouchEvent.Invoke(true);
|
|
}
|
|
|
|
// Reduce the speed by the crouchSpeed multiplier
|
|
move *= m_CrouchSpeed;
|
|
|
|
// Disable one of the colliders when crouching
|
|
if (m_CrouchDisableCollider != null)
|
|
m_CrouchDisableCollider.enabled = false;
|
|
}
|
|
else
|
|
{
|
|
// Enable the collider when not crouching
|
|
if (m_CrouchDisableCollider != null)
|
|
m_CrouchDisableCollider.enabled = true;
|
|
|
|
if (m_wasCrouching)
|
|
{
|
|
m_wasCrouching = false;
|
|
OnCrouchEvent.Invoke(false);
|
|
}
|
|
}
|
|
|
|
// Move the character by finding the target velocity
|
|
Vector3 targetVelocity = new Vector2(move * 10f, m_Rigidbody2D.velocity.y);
|
|
// And then smoothing it out and applying it to the character
|
|
m_Rigidbody2D.velocity = Vector3.SmoothDamp(m_Rigidbody2D.velocity, targetVelocity, ref m_Velocity, m_MovementSmoothing);
|
|
|
|
// If the input is moving the player right and the player is facing left...
|
|
if (move > 0 && !m_FacingRight)
|
|
{
|
|
// ... flip the player.
|
|
Flip();
|
|
}
|
|
// Otherwise if the input is moving the player left and the player is facing right...
|
|
else if (move < 0 && m_FacingRight)
|
|
{
|
|
// ... flip the player.
|
|
Flip();
|
|
}
|
|
}
|
|
// If the player should jump...
|
|
if (m_Grounded && jump)
|
|
{
|
|
// Add a vertical force to the player.
|
|
m_Grounded = false;
|
|
m_Rigidbody2D.AddForce(new Vector2(0f, m_JumpForce));
|
|
|
|
// Reset wall jump switch
|
|
m_LastWallJumpDirection = move > 0 ? Direction.R : Direction.L;
|
|
}
|
|
else if (m_TouchingWall && jump)
|
|
{
|
|
if (m_FacingRight && m_LastWallJumpDirection == Direction.L)
|
|
{
|
|
m_Rigidbody2D.AddForce(new Vector2(m_JumpForce * m_WallJumpMultiplier * (m_FacingRight ? 1f : -1f), m_JumpForce * m_WallJumpMultiplier));
|
|
|
|
m_LastWallJumpDirection = Direction.R;
|
|
}
|
|
else if (!m_FacingRight && m_LastWallJumpDirection == Direction.R)
|
|
{
|
|
m_Rigidbody2D.AddForce(new Vector2(m_JumpForce * m_WallJumpMultiplier * (m_FacingRight ? 1f : -1f), m_JumpForce * m_WallJumpMultiplier));
|
|
|
|
m_LastWallJumpDirection = Direction.L;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
|
|
private void Flip()
|
|
{
|
|
// Switch the way the player is labelled as facing.
|
|
m_FacingRight = !m_FacingRight;
|
|
|
|
// Multiply the player's x local scale by -1.
|
|
Vector3 theScale = transform.localScale;
|
|
theScale.x *= -1;
|
|
transform.localScale = theScale;
|
|
}
|
|
}
|