using UnityEngine;
using System.Collections;

public class Ball : MonoBehaviour {
    public float speed = 10f;
    public float maxSpeed = 10f;
    public string lastplayertouch;
    private GameObject gamemanager;

    public Vector2 BallDirection { get; internal set; }

    float HitFactor(Vector2 ballPos, Vector2 racketPos,
        float racketHeight) {
        // ascii art:
        // ||  1 <- at the top of the racket
        // ||
        // ||  0 <- at the middle of the racket
        // ||
        // || -1 <- at the bottom of the racket
        return (ballPos.y - racketPos.y) / racketHeight;
    }

    void Start() {
        gamemanager = GameObject.FindGameObjectWithTag("GameController");
        GetComponent<Rigidbody2D>().velocity = Vector2.right * speed;
    }

    void FixedUpdate() {
        if (rigidbody.velocity.magnitude > maxSpeed) {
            rigidbody.velocity = rigidbody.velocity.normalized * maxSpeed;
        }
    }

    void OnCollisionEnter2D(Collision2D col) {
        // Note: 'col' holds the collision information. If the
        // Ball collided with a racket, then:
        //   col.gameObject is the racket
        //   col.transform.position is the racket's position
        //   col.collider is the racket's collider

        // Hit the left Racket?
        if (col.gameObject.name == "Player1") {
            // Calculate hit Factor
            float y = HitFactor(transform.position,
                          col.transform.position,
                          col.collider.bounds.size.y);

            // Calculate direction, make length=1 via .normalized
            Vector2 dir = new Vector2(1, y).normalized;

            // Set Velocity with dir * speed
            GetComponent<Rigidbody2D>().velocity = dir * maxSpeed;
            GetComponent<Rigidbody2D>().velocity = new Vector2(Mathf.Clamp(GetComponent<Rigidbody2D>().velocity.x, -8f, 8f), Mathf.Clamp(GetComponent<Rigidbody2D>().velocity.y, -8f, 8f));


        }

        // Hit the right Racket?
        if (col.gameObject.name == "Player2") {
            // Calculate hit Factor
            float y = HitFactor(transform.position,
                          col.transform.position,
                          col.collider.bounds.size.y);

            // Calculate direction, make length=1 via .normalized
            Vector2 dir = new Vector2(-1, y).normalized;

            // Set Velocity with dir * speed
            GetComponent<Rigidbody2D>().velocity = dir * maxSpeed;

        }


        if (col.gameObject.name == "Player1") {
            lastplayertouch = "player1";
        } else if (col.gameObject.name == "Player2") {
            lastplayertouch = "player2";
        }



        if (col.gameObject.name.Contains("Brown")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 1;
            } else {
                gamemanager.GetComponent<Score>().player2score += 1;
            }
        } else if (col.gameObject.name.Contains("Peach")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Black")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Red")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Green")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Blue")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Yellow")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("Purple")) {
            if (lastplayertouch == "player1") {
                gamemanager.GetComponent<Score>().player1score += 2;
            } else {
                gamemanager.GetComponent<Score>().player2score += 2;
            }
        } else if (col.gameObject.name.Contains("LeftWall")) {
            gamemanager.GetComponent<Score>().player1score -= 2;
        }

        if (col.gameObject.name.Contains("RightWall")) {
            gamemanager.GetComponent<Score>().player2score -= 2;
        }
    }
}