Hello
i have problem in the game app after bulid
show me in game console
nullreferenceexception object reference not set to an instance of an object
PlayerController. OnTriggerEnter (UnityEngine Collider Other ) PlayerController.cs 171
the game inside the unity is working fine but when bulid the object not worling
the PlayerController source
using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;
public class PlayerController : BaseController {
public Transform cannon;
public float cannonRotationSpeed = 15f; //speed of rotation to direction of cannon
public ParticleSystem shootFX;
public GameObject bulletPrefab;
public GameObject explosionPrefab;
public Transform bulletStartPoint;
public float reloadSpeed = 1;
public int health = 100;
private float maxHealth = 100;
Vector3 cannonDirection = Vector3.zero;
private bool canFire = true;
SoundManager soundManager;
// Use this for initialization
void Start () {
Init();
soundManager = FindObjectOfType<SoundManager>();
cannonDirection = transform.forward;
maxHealth = (float)health;
}
// Update is called once per frame
void Update () {
if (gameplay.gameState != GamePlay.GameState.Playing)
return;
#if UNITY_EDITOR || UNITY_WEBPLAYER
//control with keyboard
if (Input.GetKey(KeyCode.LeftArrow)) {
MoveLeft();
}
if (Input.GetKey(KeyCode.RightArrow)) {
MoveRight();
}
if (Input.GetKey(KeyCode.UpArrow)) {
MoveFast();
}
if (Input.GetKey(KeyCode.DownArrow)) {
MoveSlow();
}
if (Input.GetKeyUp(KeyCode.LeftArrow)) {
MoveStraight();
}
if (Input.GetKeyUp(KeyCode.RightArrow)) {
MoveStraight();
}
if (Input.GetKeyUp(KeyCode.UpArrow)) {
MoveNormal();
}
if (Input.GetKeyUp(KeyCode.DownArrow)) {
MoveNormal();
}
//rotate the vehicle in side direction
ChangeRotation();
if (Input.GetMouseButtonDown(0) && !EventSystem.current.IsPointerOverGameObject()) {
Vector3 newDirection = getCannonDirection(Input.mousePosition);
if (Vector3.Angle(transform.forward, newDirection) <= 60)
cannonDirection = newDirection;
}
RotateCannonToDirection(); //rotate cannon to mouse direction
CheckGUIButtons(true);
#elif UNITY_IPHONE || UNITY_ANDROID || UNITY_WP8
if (gameplay.gameSettings.controlType == GameSettings.ControlType.Accelerometer) {
//move left or right with accelerometer
float acceleration = Mathf.Abs(Input.acceleration.x);
if (acceleration < 0.1f) {
speed = new Vector3(0, 0, speed.z);
} else if (0.1f < acceleration && acceleration < 0.2f) {
speed = new Vector3(xSpeed/4 * Mathf.Sign(Input.acceleration.x), 0, speed.z);
} else if (acceleration < 0.8f) {
speed = new Vector3(xSpeed/2 * Mathf.Sign(Input.acceleration.x), 0, speed.z);
} else if (acceleration < 1f) {
speed = new Vector3(xSpeed * Mathf.Sign(Input.acceleration.x), 0, speed.z);
}
//rotation of car
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(0,2*maxAngle*Input.acceleration.x,0), Time.deltaTime*rotationSpeed);
CheckGUIButtons(false);
} else if (gameplay.gameSettings.controlType == GameSettings.ControlType.OnScreen) {
ChangeRotation();
CheckGUIButtons(true);
}
foreach (Touch touch in Input.touches) {
if (touch.phase == TouchPhase.Began && !EventSystem.current.IsPointerOverGameObject(touch.fingerId)) {
Vector3 newDirection = getCannonDirection(Input.mousePosition);
if (Vector3.Angle(transform.forward, newDirection) <= 60)
cannonDirection = newDirection;
}
}
RotateCannonToDirection(); //rotate cannon to mouse direction
#endif
}
public void OnFire() {
if (!canFire)
return;
canFire = false;
shootFX.Play();
soundManager.PlaySound(soundManager.shootSound);
/*RaycastHit hit;
if (Physics.Raycast(cannon.position, cannonDirection, out hit, 100, LayerMask.GetMask(new string[]{"Obstacles"}))) {
hit.transform.GetComponent<ExplosiveObstacle>().Explode();
}*/
GameObject bullet = Instantiate(bulletPrefab, bulletStartPoint.position, bulletStartPoint.rotation) as GameObject;
bullet.GetComponent<Bullet>().Move(2000);
StartCoroutine(Reload());
}
IEnumerator Reload() {
gameplay.energyBar["EnergyBar"].speed = reloadSpeed;
gameplay.energyBar.Play("EnergyBar");
yield return new WaitForSeconds(gameplay.energyBar["EnergyBar"].length/reloadSpeed);
canFire = true;
}
void ChangeRotation() {
if (speed.x > 0)
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(0,maxAngle,0), Time.deltaTime*rotationSpeed);
else if (speed.x < 0)
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(0,-maxAngle,0), Time.deltaTime*rotationSpeed);
else
transform.rotation = Quaternion.Lerp(transform.rotation, Quaternion.Euler(0,0,0), Time.deltaTime*rotationSpeed);
}
//returns cannon directionn to target vector
Vector3 getCannonDirection(Vector3 target) {
return (getWorldPoint(target) - transform.position);
}
//converts screen to world point on specific height
Vector3 getWorldPoint(Vector3 screenPoint) {
Ray ray = Camera.main.ScreenPointToRay(screenPoint);
Plane plane = new Plane(Vector3.up, transform.position);
float distance = 0;
if (plane.Raycast(ray, out distance)){
return ray.GetPoint(distance);
}
return Vector3.zero;
}
//makes smooth rotation of transform to direction
void RotateCannonToDirection() {
if (cannonDirection != Vector3.zero) {
Quaternion qTo = Quaternion.LookRotation(cannonDirection);
if (Quaternion.Angle(cannon.rotation, qTo) > 0.5f) {
cannon.rotation = Quaternion.Slerp(cannon.rotation, qTo, rotationSpeed * Time.deltaTime);
}
}
}
void FixedUpdate() {
if (gameplay.gameState == GamePlay.GameState.Playing)
GetComponent<Rigidbody>().MovePosition(GetComponent<Rigidbody>().position + speed * Time.deltaTime);
}
void OnTriggerEnter(Collider other) {
if (other.tag == "Obstacle") {
if (other.GetComponent<ExplosiveObstacle>() != null) {
Hurt(other.GetComponent<ExplosiveObstacle>().damage);
other.GetComponent<ExplosiveObstacle>().Explode();
} else {
Hurt(10);
soundManager.PlaySound(soundManager.fireSound);
}
} else if (other.tag == "Zombie") {
other.GetComponent<Zombie>().Die();
soundManager.PlaySound(soundManager.zombieSmashSounds[Random.Range(0, soundManager.zombieSmashSounds.Length)]);
gameplay.AddScore(1);
}
}
void Hurt(int damage) {
health -= damage;
if (health > 0) {
float lifeLength = -100f + 325f * (1f - health/maxHealth);
gameplay.lifeBar.offsetMax = new Vector2(-lifeLength, gameplay.lifeBar.offsetMax.y);
Camera.main.GetComponent<Animation>().Play("CameraShake");
} else {
Destroy(GetComponent<Rigidbody>());
GetComponent<Collider>().enabled = false;
foreach (Renderer renderer in GetComponentsInChildren<Renderer>()) {
renderer.enabled = false;
}
foreach (ParticleSystem ps in GetComponentsInChildren<ParticleSystem>()) {
ps.Stop();
}
if (PlayerPrefs.GetInt("sound", 1) == 1)
GetComponent<AudioSource>().Play();
GameObject explosion = Instantiate(explosionPrefab, transform.position, Quaternion.identity) as GameObject;
gameplay.lifeBar.offsetMax = new Vector2(-240, gameplay.lifeBar.offsetMax.y);
gameplay.OnGameOver();
}
}
}
any soultion plz
regards
