PlatformerCharacter2D.cs

using UnityEngine;

public class PlatformerCharacter2D : MonoBehaviour
{
    bool facingRight = true;                            // For determining which way the player is currently facing.

    [SerializeField]
    float maxSpeed = 10f;               // The fastest the player can travel in the x axis.
    [SerializeField]
    float jumpForce = 400f;         // Amount of force added when the player jumps.

    //[Range(0, 1)]
    //[SerializeField]
    //float crouchSpeed = .36f;         // Amount of maxSpeed applied to crouching movement. 1 = 100%

    [SerializeField]
    bool airControl = false;            // Whether or not a player can steer while jumping;
    [SerializeField]
    LayerMask whatIsGround;         // A mask determining what is ground to the character

    Transform groundCheck;                              // A position marking where to check if the player is grounded.
    float groundedRadius = .3f;                         // Radius of the overlap circle to determine if grounded
    bool grounded = false;                              // Whether or not the player is grounded.
    //Transform ceilingCheck;                               // A position marking where to check for ceilings
    //float ceilingRadius = .01f;                           // Radius of the overlap circle to determine if the player can stand up
    Animator anim;                                      // Reference to the player's animator component.

    bool doubleJump = false;

    void Awake()
    {
        // Setting up references.
        groundCheck = transform.Find("GroundCheck");
        //ceilingCheck = transform.Find("CeilingCheck");
        anim = GetComponent<Animator>();
    }


    void FixedUpdate()
    {
        // The player is grounded if a circlecast to the groundcheck position hits anything designated as ground
        grounded = Physics2D.OverlapCircle(groundCheck.position, groundedRadius, whatIsGround);
        anim.SetBool("Ground", grounded);

        if (grounded)
            doubleJump = false;

        // Set the vertical animation
        anim.SetFloat("vSpeed", rigidbody2D.velocity.y);
    }


    public void Move(float move, bool crouch, bool jump)
    {


        //// If crouching, check to see if the character can stand up
        //if (!crouch && anim.GetBool("Crouch"))
        //{
        //    // If the character has a ceiling preventing them from standing up, keep them crouching
        //    if (Physics2D.OverlapCircle(ceilingCheck.position, ceilingRadius, whatIsGround))
        //        crouch = true;
        //}

        //// Set whether or not the character is crouching in the animator
        //anim.SetBool("Crouch", crouch);

        //only control the player if grounded or airControl is turned on
        if (grounded || airControl)
        {
            //// Reduce the speed if crouching by the crouchSpeed multiplier
            //move = (crouch ? move * crouchSpeed : move);

            // The Speed animator parameter is set to the absolute value of the horizontal input.
            anim.SetFloat("Speed", Mathf.Abs(move));

            // Move the character
            rigidbody2D.velocity = new Vector2(move * maxSpeed, rigidbody2D.velocity.y);

            // If the input is moving the player right and the player is facing left...
            if (move > 0 && !facingRight)
                // ... flip the player.
                Flip();
            // Otherwise if the input is moving the player left and the player is facing right...
            else if (move < 0 && facingRight)
                // ... flip the player.
                Flip();
        }

        // If the player should jump...
        if ((grounded || !doubleJump) && jump)
        {
            // Add a vertical force to the player.
            anim.SetBool("Ground", false);

            if (!grounded)
                doubleJump = true;
            rigidbody2D.velocity = new Vector2(rigidbody2D.velocity.x, 0);

            rigidbody2D.AddForce(new Vector2(0f, jumpForce));

        }
    }


    void Flip()
    {
        // Switch the way the player is labelled as facing.
        facingRight = !facingRight;

        // Multiply the player's x local scale by -1.
        Vector3 theScale = transform.localScale;
        theScale.x *= -1;
        transform.localScale = theScale;
    }
}