ScreenToWorldPoint

55  void TouchMovement(){
56   if(Input.touchCount > 0){
57    Touch touch = Input.GetTouch (0);
58
59    if(touch.phase == TouchPhase.Stationary || touch.phase == TouchPhase.Began){
60     Vector3 fingerPos = touch.position;
61     position.x = fingerPos.x;
62     realPos = Camera.main.ScreenToWorldPoint (new Vector3(position.x, position.y ,position.z));
63     transform.position = Vector3.Lerp (transform.position, new Vector3(Mathf.Clamp(realPos.x, maxLeft + 0.5f, maxRight - 0.5f), transform.position.y, transform.position.z), Time.deltaTime * speed);
64
65    }
66
67    if (touch.phase == TouchPhase.Moved) {
68     Vector3 fingerPos = touch.position;
69     position.x = fingerPos.x;
70     realPos = Camera.main.ScreenToWorldPoint (new Vector3(position.x, position.y ,position.z));
71     transform.position = Vector3.Lerp (transform.position, new Vector3(Mathf.Clamp(realPos.x, maxLeft + 0.5f, maxRight - 0.5f), transform.position.y, transform.position.z), speed);
72    }
73
74   }
75  }

63  void TouchCannonShoot(){
64   if(Input.touchCount > 0){
65    Touch touch = Input.GetTouch (0);
66
67    touchPos = Camera.main.ScreenToWorldPoint (touch.position);
68
69    Vector2 touchRayHit = new Vector2 (touchPos.x, touchPos.y);
70
71    RaycastHit2D hit = Physics2D.Raycast (touchRayHit , Vector2.zero);
72
73    if(hit.collider != null){
74     if(hit.collider.CompareTag("Player")){
75      if(touch.phase == TouchPhase.Stationary){
76       if (shot != 0) {
77        UpdatePowerLevel ();
78        isCharging = true;
79       }
80      }else if(touch.phase == TouchPhase.Ended){
81       if (shot != 0) {
82        GameObject newCannonBullet = Instantiate (cannonBullet, cannonTip.position, Quaternion.identity) as GameObject;
83        newCannonBullet.transform.GetComponent ().AddForce (cannonTip.right * powerLevel.value, ForceMode2D.Impulse);
84        if (GameController.instance != null && MusicController.instance != null) {
85         if (GameController.instance.isMusicOn) {
86          audioSource.PlayOneShot (cannonShot);
87         }
88        }
89        shot--;
90        powerLevel.value = 0;
91        readyToShoot = false;
92        isCharging = false;
93       }
94      }
95     }
96    }
97
98    /*if(touch.phase == TouchPhase.Stationary){
99     if (shot != 0) {
100      UpdatePowerLevel ();
101     }
102    }else if(touch.phase == TouchPhase.Ended){
103     if (shot != 0) {
104      GameObject newCannonBullet = Instantiate (cannonBullet, cannonTip.position, Quaternion.identity) as GameObject;
105      newCannonBullet.transform.GetComponent ().AddForce (cannonTip.right * powerLevel.value, ForceMode2D.Impulse);
106      if (GameController.instance != null && MusicController.instance != null) {
107       if (GameController.instance.isMusicOn) {
108        audioSource.PlayOneShot (cannonShot);
109       }
110      }
111      shot--;
112      powerLevel.value = 0;
113      readyToShoot = false;
114     }
115    }*/
116
117   }
118  }