#pragma strict

//Public Variables
var moveSpeed : float = 25;             // Movement Speed
var jumpForce : float = 300;            // Jump Force
var allowDoubleJump : boolean = true;   // Allow Double Jump

//Private Variables
private var horizontalInput : float;
private var verticalInput : float;

private var isFacingRight : boolean = true;
public var isGrounded : boolean = false;
private var isMoving : boolean = false;
private var jumpCount = 0;

private var velX : float;
private var animator : Animator;

function Update () {
    animator = GetComponent("Animator");    // Get the "Animator" component and set it to "animator" var
    velX = rigidbody2D.velocity.x;          // Store the x velocity in "vel" var

    HandleInput();          // Handles Input
    HandleMovement();       // Handles Movement
    HandleJump();
    SetIsGrounded();        // Sets "isGrounded"
    SetIsFacingRight();     // Sets "isFacingRight"
    SetIsMoving();          // Sets "isMoving"
}

function HandleInput() {
    horizontalInput = Input.GetAxis("Horizontal");      // Set "horiztonalInput" equal to the Horizontal Axis Input
    verticalInput = Input.GetAxis("Vertical");          // Set "verticallInput" equal to the Vertical Axis Inpu
}

function HandleMovement() {
    rigidbody2D.velocity.x = horizontalInput * moveSpeed * Time.deltaTime; // Moves gameObject based on the "moveSpeed" var
}

function HandleJump() {
    if(Input.GetButtonDown("Jump")) {                                       // When "Jump" button is pressed
        jumpCount++;                                                        // Add 1 to jumpCount
        if(isGrounded || (allowDoubleJump && jumpCount < 2)) {              // if the character is on the ground OR if double jump is allow and the "jumpCount" is below 2
            rigidbody2D.velocity.y = 0;                                     // Set the y velocity to 0
            rigidbody2D.AddForce(Vector2.up * jumpForce * Time.deltaTime);  // Add y force set by "jumpForce"
        }
    }
}

function Flip() {
    isFacingRight = !isFacingRight;                 // Toggles between "true" and "false"
    gameObject.transform.localScale.x *= -1;        // Flip the gameObject based on localScale
}

function SetIsFacingRight() {
    if(velX > 0 && !isFacingRight) {            // If velocity is positive and gameObject isn't facing right
        Flip();
    } else if(velX < 0 && isFacingRight) {      // If velocity is negative and gameObject is facing right
        Flip();
    }
}

function SetIsMoving() {
    if(velX != 0) {                                 // If velocity isn't 0, set "isMoving" to true
        isMoving = true;
    } else {                                    // If velocity is 0, set "isMoving" to false
        isMoving = false;
    }
    animator.SetBool("isMoving", isMoving);     // Set the "isMoving" bool parameter to equal "isMoving" var
}

function SetIsGrounded() {
    var raycastHit : RaycastHit2D = Physics2D.Raycast(transform.position, -Vector2.up, 0.6);    // Create a ray from the character to check for the ground
    if(raycastHit.collider != null) {                                                           // If the ray hit isn't null
        if(raycastHit.collider.tag == "ground") {                                               // Check if the collider is in the "ground" tag
            isGrounded = true;                                                                  // Set "isGrounded" to true
            jumpCount = 0;                                                                      // Reset the "jumpCount" to 0
        }
    } else {
        isGrounded = false;                                                                     // Set "isGrounded" to false if not colliding with "ground" tag
    }
}