よく使う適当に何か飛ばすスクリプト

Gun

using UnityEngine;
using System.Collections;

public class Gun : MonoBehaviour {
	public GameObject bullet;
	public float offset;
	public float power;
	public ForceMode mode;
	public float lifetime;

	void FixedUpdate () {
		if(Input.GetButtonDown("Fire1"))
		{
			GameObject obj = Instantiate(bullet,offset*transform.forward+ transform.position,transform.rotation) as GameObject;
			obj.rigidbody.AddForce(transform.forward*power, mode);
			//Destroy(obj,lifetime);
		}
	}
}