using UnityEngine;public class MainCameraController : MonoBehaviour {private Transform player; // 玩家private Vector3 relaPlayerPos; // 相机在玩家坐标系中的位置private float targetDistance = 15f; // 相机看向玩家前方的位置private void Start() {relaPlayerPos = new Vector3(0, 4, -8);player = GameObject.Find("Player/Top").transform;}private void LateUpdate() {CompCameraPos();}private void CompCameraPos() { // 计算相机坐标Vector3 target = player.position + player.forward * targetDistance;transform.position = transformVecter(relaPlayerPos, player.position, player.right, player.up, player.forward);transform.rotation = Quaternion.LookRotation(target - transform.position);}// 求以origin为原点, locX, locY, locZ 为坐标轴的本地坐标系中的向量 vec 在世界坐标系中对应的向量private Vector3 transformVecter(Vector3 vec, Vector3 origin, Vector3 locX,  Vector3 locY,  Vector3 locZ) {return vec.x * locX + vec.y * locY + vec.z * locZ + origin;}
}

using UnityEngine;public class MinimapController : MonoBehaviour {private Transform player; // 玩家private float height = 12; // 相机离地面的高度private bool isFullscreen = false; // 小地图相机是否全屏private Rect minViewport; // 小地图视口位置和大小（相对值）private Rect FullViewport; // 全屏时视口位置和大小（相对值）private void Start() {player = GameObject.Find("Player/Top").transform;minViewport = GetComponent<Camera>().rect;FullViewport = new Rect(0, 0, 1, 1);}private void Update() {if (Input.GetMouseButtonDown(0) && IsClickMinimap()) {if (isFullscreen) {GetComponent<Camera>().rect = minViewport;} else {GetComponent<Camera>().rect = FullViewport;}isFullscreen = !isFullscreen;}}private void LateUpdate() {Vector3 pos = player.position;transform.position = new Vector3(pos.x, height, pos.z);}public bool IsClickMinimap() { // 是否单击到小地图区域Vector3 pos = Input.mousePosition;if (isFullscreen) {return true;}if (pos.x / Screen.width > minViewport.xMin && pos.y / Screen.height > minViewport.yMin) {return true;}return false;}
}

using UnityEngine;public class PlayerController : MonoBehaviour {private MinimapController minimapController; // 小地图控制器private Transform firePoint; // 开火点private GameObject bulletPrefab; // 炮弹预设体private float tankMoveSpeed = 4f; // 坦克移动速度private float tankRotateSpeed = 2f; // 坦克转向速度private Vector3 predownMousePoint; // 鼠标按下时的位置private Vector3 currMousePoint; // 当前鼠标位置private float fireWaitTime = float.MaxValue; // 距离上次开火已等待的时间private float bulletCoolTime = 0.15f; // 炮弹冷却时间private void Start() {minimapController = GameObject.Find("MinimapCamera").GetComponent<MinimapController>();firePoint = transform.Find("Top/Gun/FirePoint");bulletPrefab = (GameObject) Resources.Load("Prefabs/Bullet");}private void Update() {Move();Rotate();Fire();}private void Move() { // 坦克移动float hor = Input.GetAxis("Horizontal");float ver = Input.GetAxis("Vertical");if (Mathf.Abs(hor) > float.Epsilon || Mathf.Abs(ver) > float.Epsilon) {Vector3 vec = transform.forward * ver + transform.right * hor;GetComponent<Rigidbody>().velocity = vec * tankMoveSpeed;Vector3 dire = new Vector3(hor, ver, 0);dire =  dire.normalized * Mathf.Min(dire.magnitude, 1);}}private void Rotate() { // 坦克旋转if (Input.GetMouseButtonDown(1)) {predownMousePoint = Input.mousePosition;} else if (Input.GetMouseButton(1)) {currMousePoint = Input.mousePosition;Vector3 vec = currMousePoint - predownMousePoint;GetComponent<Rigidbody>().angularVelocity = Vector3.up * tankRotateSpeed * vec.x;predownMousePoint = currMousePoint;}}private void Fire() { // 坦克开炮fireWaitTime += Time.deltaTime;if (Input.GetMouseButtonDown(0) && !minimapController.IsClickMinimap() || Input.GetKeyDown(KeyCode.Space)) {if (fireWaitTime > bulletCoolTime) {BulletInfo bulletInfo = new BulletInfo("PlayerBullet", Color.red, transform.forward, 10f, 15f);GameObject bullet = Instantiate(bulletPrefab, firePoint.position, Quaternion.identity);bullet.AddComponent<BulletController>().SetBulletInfo(bulletInfo);fireWaitTime = 0f;}}}
}

using UnityEngine;
using UnityEngine.UI;public class BulletController : MonoBehaviour {private BulletInfo bulletInfo; // 炮弹信息private void Start () {gameObject.name = bulletInfo.name;GetComponent<MeshRenderer>().material.color = bulletInfo.color;float lifeTime = bulletInfo.fireRange / bulletInfo.speed; // 存活时间Destroy(gameObject, lifeTime);}private void Update () {transform.GetComponent<Rigidbody>().velocity = bulletInfo.flyDir * bulletInfo.speed;}public void SetBulletInfo(BulletInfo bulletInfo) {this.bulletInfo = bulletInfo;}
}

using UnityEngine;public class BulletInfo {public string name; // 炮弹名public Color color; // 炮弹颜色public Vector3 flyDir; // 炮弹飞出方向public float speed; // 炮弹飞行速度public float fireRange; // 炮弹射程public BulletInfo(string name, Color color, Vector3 flyDir, float speed, float fireRange) {this.name = name;this.color = color;this.flyDir = flyDir;this.speed = speed;this.fireRange = fireRange;}
}