unity shooting script
using UnityEngine; public class Gun : MonoBehaviour { public enum ShootState { Ready, Shooting, Reloading } // How far forward the muzzle is from the centre of the gun private float muzzleOffset; [Header("Magazine")] public GameObject round; public int ammunition; [Range(0.5f, 10)] public float reloadTime; private int remainingAmmunition; [Header("Shooting")] // How many shots the gun can make per second [Range(0.25f, 25)] public float fireRate; // The number of rounds fired each shot public int roundsPerShot; [Range(0.5f, 100)] public float roundSpeed; // The maximum angle that the bullet's direction can vary, // in both the horizontal and vertical axes [Range(0, 45)] public float maxRoundVariation; private ShootState shootState = ShootState.Ready; // The next time that the gun is able to shoot at private float nextShootTime = 0; void Start() { muzzleOffset = GetComponent<Renderer>().bounds.extents.z; remainingAmmunition = ammunition; } void Update() { switch(shootState) { case ShootState.Shooting: // If the gun is ready to shoot again... if(Time.time > nextShootTime) { shootState = ShootState.Ready; } break; case ShootState.Reloading: // If the gun has finished reloading... if(Time.time > nextShootTime) { remainingAmmunition = ammunition; shootState = ShootState.Ready; } break; } } /// Attempts to fire the gun public void Shoot() { // Checks that the gun is ready to shoot if(shootState == ShootState.Ready) { for(int i = 0; i < roundsPerShot; i++) { // Instantiates the round at the muzzle position GameObject spawnedRound = Instantiate( round, transform.position + transform.forward * muzzleOffset, transform.rotation ); // Add a random variation to the round's direction spawnedRound.transform.Rotate(new Vector3( Random.Range(-1f, 1f) * maxRoundVariation, Random.Range(-1f, 1f) * maxRoundVariation, 0 )); Rigidbody rb = spawnedRound.GetComponent<Rigidbody>(); rb.velocity = spawnedRound.transform.forward * roundSpeed; } remainingAmmunition--; if(remainingAmmunition > 0) { nextShootTime = Time.time + (1 / fireRate); shootState = ShootState.Shooting; } else { Reload(); } } } /// Attempts to reload the gun public void Reload() { // Checks that the gun is ready to be reloaded if(shootState == ShootState.Ready) { nextShootTime = Time.time + reloadTime; shootState = ShootState.Reloading; } } }
