using UnityEngine;
using System.Collections;

public class Ball : MonoBehaviour {

	private float move_spped = 5;
	private Rigidbody rb;
	public AudioClip coinGet;
	public float jumpSpeed;
	private bool isJumping = false;

	void Start () {

		// ★★
		rb = GetComponent<Rigidbody>();
	}

	void Update () {

		float moveH = Input.GetAxis("Horizontal");
		float moveV = Input.GetAxis("Vertical");

		Vector3 movement = new Vector3(moveH, 0.0f, moveV);

		rb.AddForce(movement * move_spped);

		if(Input.GetButtonDown("Jump") && isJumping == false){
			rb.velocity = Vector3.up * jumpSpeed;
			isJumping = true;
		}
	}
		
	void OnTriggerEnter(Collider other){
		if(other.CompareTag("Coin")){

			// ★★
			// コインを１枚取得するたびごとに「質量」を１０ずつ増加させる。
			rb.mass += 10;

			Destroy(other.gameObject);
			AudioSource.PlayClipAtPoint(coinGet, Camera.main.transform.position);
		}
	}
		
	void OnCollisionEnter(Collision other){
		if(other.gameObject.CompareTag("Floor")){
			isJumping = false;
		}
	}

}