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FPS SHOOTER (FirstPersonController)

using System;
using UnityEngine;
using UnityStandardAssets.CrossPlatformInput;
using UnityStandardAssets.Utility;
using Random = UnityEngine.Random;

namespace UnityStandardAssets.Characters.FirstPerson
{
    [RequireComponent(typeof (CharacterController))]
    [RequireComponent(typeof (AudioSource))]
    public class FirstPersonController : MonoBehaviour
    {
        [SerializeField] private bool m_IsWalking;
        [SerializeField] private float m_WalkSpeed;
        [SerializeField] private float m_RunSpeed;
        [SerializeField] [Range(0f, 1f)] private float m_RunstepLenghten;
        [SerializeField] private float m_JumpSpeed;
        [SerializeField] private float m_StickToGroundForce;
        [SerializeField] private float m_GravityMultiplier;
        [SerializeField] private MouseLook m_MouseLook;
        [SerializeField] private bool m_UseFovKick;
        [SerializeField] private FOVKick m_FovKick = new FOVKick();
        [SerializeField] private bool m_UseHeadBob;
        [SerializeField] private CurveControlledBob m_HeadBob = new CurveControlledBob();
        [SerializeField] private LerpControlledBob m_JumpBob = new LerpControlledBob();
        [SerializeField] private float m_StepInterval;
        [SerializeField] private AudioClip[] m_FootstepSounds;    // an array of footstep sounds that will be randomly selected from.
        [SerializeField] private AudioClip m_JumpSound;           // the sound played when character leaves the ground.
        [SerializeField] private AudioClip m_LandSound;           // the sound played when character touches back on ground.

        float horizontal;
        float vertical;
        bool walkforward;

        private Camera m_Camera;
        private bool m_Jump;
        private float m_YRotation;
        private Vector2 m_Input;
        private Vector3 m_MoveDir = Vector3.zero;
        private CharacterController m_CharacterController;
        private CollisionFlags m_CollisionFlags;
        private bool m_PreviouslyGrounded;
        private Vector3 m_OriginalCameraPosition;
        private float m_StepCycle;
        private float m_NextStep;
        private bool m_Jumping;
        private AudioSource m_AudioSource;

        // Use this for initialization
        private void Start()
        {
            m_CharacterController = GetComponent<CharacterController>();
            m_Camera = Camera.main;
            m_OriginalCameraPosition = m_Camera.transform.localPosition;
            m_FovKick.Setup(m_Camera);
            m_HeadBob.Setup(m_Camera, m_StepInterval);
            m_StepCycle = 0f;
            m_NextStep = m_StepCycle/2f;
            m_Jumping = false;
            m_AudioSource = GetComponent<AudioSource>();
            m_MouseLook.Init(transform , m_Camera.transform);
        }


        // Update is called once per frame
        private void Update()
        {
            RotateView();
            // the jump state needs to read here to make sure it is not missed
            if (!m_Jump)
            {
                m_Jump = CrossPlatformInputManager.GetButtonDown("Jump");
            }

            if (!m_PreviouslyGrounded && m_CharacterController.isGrounded)
            {
                StartCoroutine(m_JumpBob.DoBobCycle());
                PlayLandingSound();
                m_MoveDir.y = 0f;
                m_Jumping = false;
            }
            if (!m_CharacterController.isGrounded && !m_Jumping && m_PreviouslyGrounded)
            {
                m_MoveDir.y = 0f;
            }

            m_PreviouslyGrounded = m_CharacterController.isGrounded;
        }


        private void PlayLandingSound()
        {
            m_AudioSource.clip = m_LandSound;
            m_AudioSource.Play();
            m_NextStep = m_StepCycle + .5f;
        }


        private void FixedUpdate()
        {
            float speed;
            GetInput(out speed);
            // always move along the camera forward as it is the direction that it being aimed at
            Vector3 desiredMove = transform.forward*m_Input.y + transform.right*m_Input.x;

            // get a normal for the surface that is being touched to move along it
            RaycastHit hitInfo;
            Physics.SphereCast(transform.position, m_CharacterController.radius, Vector3.down, out hitInfo,
                               m_CharacterController.height/2f, Physics.AllLayers, QueryTriggerInteraction.Ignore);
            desiredMove = Vector3.ProjectOnPlane(desiredMove, hitInfo.normal).normalized;

            m_MoveDir.x = desiredMove.x*speed;
            Camera.main.transform.Rotate(new Vector3(0.0f, m_MoveDir.x, 0.0f));
           // transform.Rotate(new Vector3(0.0f, m_MoveDir.x,0.0f));
            m_MoveDir.z = desiredMove.z*speed;


            if (m_CharacterController.isGrounded)
            {
                m_MoveDir.y = -m_StickToGroundForce;

                if (m_Jump)
                {
                    m_MoveDir.y = m_JumpSpeed;
                    PlayJumpSound();
                    m_Jump = false;
                    m_Jumping = true;
                }
            }
            else
            {
                m_MoveDir += Physics.gravity*m_GravityMultiplier*Time.fixedDeltaTime;
            }
            m_CollisionFlags = m_CharacterController.Move(m_MoveDir*Time.fixedDeltaTime);

            ProgressStepCycle(speed);
            UpdateCameraPosition(speed);

            m_MouseLook.UpdateCursorLock();
        }


        private void PlayJumpSound()
        {
            m_AudioSource.clip = m_JumpSound;
            m_AudioSource.Play();
        }


        private void ProgressStepCycle(float speed)
        {
            if (m_CharacterController.velocity.sqrMagnitude > 0 && (m_Input.x != 0 || m_Input.y != 0))
            {
                m_StepCycle += (m_CharacterController.velocity.magnitude + (speed*(m_IsWalking ? 1f : m_RunstepLenghten)))*
                             Time.fixedDeltaTime;
            }

            if (!(m_StepCycle > m_NextStep))
            {
                return;
            }

            m_NextStep = m_StepCycle + m_StepInterval;

            PlayFootStepAudio();
        }


        private void PlayFootStepAudio()
        {
            if (!m_CharacterController.isGrounded)
            {
                return;
            }
            // pick & play a random footstep sound from the array,
            // excluding sound at index 0
            int n = Random.Range(1, m_FootstepSounds.Length);
            m_AudioSource.clip = m_FootstepSounds[n];
            m_AudioSource.PlayOneShot(m_AudioSource.clip);
            // move picked sound to index 0 so it's not picked next time
            m_FootstepSounds[n] = m_FootstepSounds[0];
            m_FootstepSounds[0] = m_AudioSource.clip;
        }


        private void UpdateCameraPosition(float speed)
        {
            Vector3 newCameraPosition;
            if (!m_UseHeadBob)
            {
                return;
            }
            if (m_CharacterController.velocity.magnitude > 0 && m_CharacterController.isGrounded)
            {
                m_Camera.transform.localPosition =
                    m_HeadBob.DoHeadBob(m_CharacterController.velocity.magnitude +
                                      (speed*(m_IsWalking ? 1f : m_RunstepLenghten)));
                newCameraPosition = m_Camera.transform.localPosition;
                newCameraPosition.y = m_Camera.transform.localPosition.y - m_JumpBob.Offset();
            }
            else
            {
                newCameraPosition = m_Camera.transform.localPosition;
                newCameraPosition.y = m_OriginalCameraPosition.y - m_JumpBob.Offset();
            }
            m_Camera.transform.localPosition = newCameraPosition;
        }


        private void GetInput(out float speed)
        {
           

            horizontal = CrossPlatformInputManager.GetAxis("Horizontal");
            vertical = CrossPlatformInputManager.GetAxis("Vertical");

            bool waswalking = m_IsWalking;

#if !MOBILE_INPUT
            // On standalone builds, walk/run speed is modified by a key press.
            // keep track of whether or not the character is walking or running
            m_IsWalking = !Input.GetKey(KeyCode.LeftShift);
#endif
            // set the desired speed to be walking or running
            speed = m_IsWalking ? m_WalkSpeed : m_RunSpeed;
            m_Input = new Vector2(horizontal, vertical);

            // normalize input if it exceeds 1 in combined length:
            if (m_Input.sqrMagnitude > 1)
            {
                m_Input.Normalize();
            }

            // handle speed change to give an fov kick
            // only if the player is going to a run, is running and the fovkick is to be used
            if (m_IsWalking != waswalking && m_UseFovKick && m_CharacterController.velocity.sqrMagnitude > 0)
            {
                StopAllCoroutines();
                StartCoroutine(!m_IsWalking ? m_FovKick.FOVKickUp() : m_FovKick.FOVKickDown());
            }
        }


        private void RotateView()
        {
            m_MouseLook.LookRotation (transform, m_Camera.transform);
        }


        private void OnControllerColliderHit(ControllerColliderHit hit)
        {
            Rigidbody body = hit.collider.attachedRigidbody;
            //dont move the rigidbody if the character is on top of it
            if (m_CollisionFlags == CollisionFlags.Below)
            {
                return;
            }

            if (body == null || body.isKinematic)
            {
                return;
            }
            body.AddForceAtPosition(m_CharacterController.velocity*0.1f, hit.point, ForceMode.Impulse);
        }

        public void walkForward()
        {
            vertical = 1f;
        }
        public void walkForwardUp()
        {
            vertical = 0f;
        }
        public void walkBackward()
        {
            vertical = -1f;
        }
    }
}

fps shooter (PlayerScript)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityStandardAssets.CrossPlatformInput;

public class PlayerScript : MonoBehaviour
{
    public Animator Zombieanim;
    public float health = 100f;
    public Slider healthbar;
    public GameObject GameOverScreen;

    public float speed = 5.0f;
    private float rot = 0.0f;
    //public GameObject zombie;
    // Use this for initialization
    void Start () {
      
    }
  
    // Update is called once per frame
    void Update () {
       // CrossPlatformInputManager.GetAxis("Vertical");
    
    }
    void OnTriggerEnter(Collider col)
    {
        if (col.tag == "Enemy"&& !col.GetComponent<Enemy_AI>().isDead) {
            health = health - 0.1f;
            Zombieanim.SetBool ("attack",true);
        }
    }

    void OnTriggerStay(Collider col)
    {
        if (col.tag == "Enemy"&& !col.GetComponent<Enemy_AI>().isDead) {
            health = health - 0.1f;
            healthbar.value = health;

            if (health < 0f )
            {
                print ("you died");
                GameOverScreen.SetActive(true);
            }
        }
    }

    void OnTriggerExit(Collider col)
    {
        if (col.tag == "Enemy") {
            Zombieanim.SetBool ("attack",false);
        }
    }
 
}

FPS SHOOTER (Raycast Shoot Script)

using UnityEngine;
using System.Collections;

public class RaycastShootComplete : MonoBehaviour {

    public int gunDamage = 1;                                          
    public float fireRate = 0.25f;                                   
    public float weaponRange = 50f;                                    
    public float hitForce = 100f;                                     
    public Transform gunEnd;                                           
    public GameObject Particle;

    public GameObject zombie;
    public Animator zombieAnimator;
    public EnemyGenerator enemyGenerator;

    private Camera fpsCam;                                             
    private WaitForSeconds shotDuration = new WaitForSeconds(0.07f);   
    private AudioSource gunAudio;                                      
    private LineRenderer laserLine;                                    
    private float nextFire;                                            

    private Animator anim;
    void Start () 
    {
        anim = GetComponent<Animator> ();
        // Get and store a reference to our LineRenderer component
        laserLine = GetComponent<LineRenderer>();

        // Get and store a reference to our AudioSource component
        gunAudio = GetComponent<AudioSource>();

        // Get and store a reference to our Camera by searching this GameObject and its parents
        fpsCam = GetComponentInParent<Camera>();
    }



    private IEnumerator ShotEffect()
    {
//        Gun.getInstance.PlayAnim ();

    //    this.gameObject.GetComponentInParent<Rigidbody>() .AddForce (new Vector3 (-50f, 0, 0), ForceMode.Impulse);
        GameObject particle = Instantiate (Particle, gunEnd.transform.position, Particle.transform.rotation);
        Destroy (particle, 0.5f);
        // Play the shooting sound effect
        gunAudio.Play ();

        // Turn on our line renderer
        //laserLine.enabled = true;

        //Wait for .07 seconds
        yield return shotDuration;

        // Deactivate our line renderer after waiting
        laserLine.enabled = false;
    }

    public void Fire()
    {
        if ( Time.time > nextFire )
        {//Input.GetButtonDown("Fire1")&& Time.time > nextFire
            // Update the time when our player can fire next
            nextFire = Time.time + fireRate;
            anim.SetTrigger("Shooting");

            // Start our ShotEffect coroutine to turn our laser line on and off
            StartCoroutine(ShotEffect());

            // Create a vector at the center of our camera's viewport
            Vector3 rayOrigin = fpsCam.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, 0.0f));

            // Declare a raycast hit to store information about what our raycast has hit
            RaycastHit hit;

            // Set the start position for our visual effect for our laser to the position of gunEnd
            laserLine.SetPosition(0, gunEnd.position);

            // Check if our raycast has hit anything
            if (Physics.Raycast(rayOrigin, fpsCam.transform.forward, out hit, weaponRange))
            {
                // Set the end position for our laser line 
                laserLine.SetPosition(1, hit.point);

                // Check if the object we hit has a rigidbody attached
                if (hit.rigidbody != null)
                {
                    if (hit.collider.tag == "Enemy")
                    {
                        zombieAnimator = hit.transform.gameObject.GetComponent<Animator>();
                        zombieAnimator.SetTrigger("Death");
                        zombie = hit.transform.gameObject;
                        zombie.GetComponent<Enemy_AI>().isDead = true;
                        enemyGenerator.SpawnZombie();
                    }
                    // Add force to the rigidbody we hit, in the direction from which it was hit
                    hit.rigidbody.AddForce(-hit.normal * hitForce);
                }
            }
            else
            {
               // If we did not hit anything, set the end of the line to a position directly in front of the camera at the distance of weaponRange
                laserLine.SetPosition(1, rayOrigin + (fpsCam.transform.forward * weaponRange));
            }
        }
    }
}