using UnityEngine;
using System.Collections;/// <summary>
/// 玩家控制器和行为
/// </summary>
public class PlayerScript : MonoBehaviour
{#region 1 - 变量/// <summary>/// 飞船移动速度/// </summary>private Vector2 speed = new Vector2(50, 50);// 存储运动private Vector2 movement;#endregion// Update is called once per framevoid Update(){#region 运动控制// 2 - 获取轴信息float inputX = Input.GetAxis("Horizontal");float inputY = Input.GetAxis("Vertical");// 3 - 保存运动轨迹movement = new Vector2(speed.x * inputX, speed.y * inputY);#endregion}void FixedUpdate(){// 4 - 让游戏物体移动rigidbody2D.velocity = movement;}
}

using UnityEngine;
using System.Collections;/// <summary>
///  当前游戏对象简单的移动行为
/// </summary>
public class MoveScript : MonoBehaviour
{#region 1 - 变量/// <summary>/// 物体移动速度/// </summary>public Vector2 speed = new Vector2(10, 10);/// <summary>/// 移动方向/// </summary>public Vector2 direction = new Vector2(-1, 0);private Vector2 movement;#endregion// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){// 2 - 保存运动轨迹movement = new Vector2(speed.x * direction.x, speed.y * direction.y);}void FixedUpdate(){// 3 - 让游戏物体移动rigidbody2D.velocity = movement;}
}

using UnityEngine;
using System.Collections;/// <summary>
/// 子弹行为
/// </summary>
public class ShotScript : MonoBehaviour
{#region 1 - 变量/// <summary>/// 造成伤害/// </summary>public int damage = 1;/// <summary>/// 子弹归属 , true-敌人的子弹, false-玩家的子弹/// </summary>public bool isEnemyShot = false;#endregion// Use this for initializationvoid Start(){// 2 - 为避免任何泄漏,只给予有限的生存时间.[20秒]Destroy(gameObject, 20);}
}

using UnityEngine;
using System.Collections;/// <summary>
/// 处理生命值和伤害
/// </summary>
public class HealthScript : MonoBehaviour
{#region 1 - 变量/// <summary>/// 总生命值/// </summary>public int hp = 1;/// <summary>/// 敌人标识/// </summary>public bool isEnemy = true;#endregion/// <summary>/// 对敌人造成伤害并检查对象是否应该被销毁/// </summary>/// <param name="damageCount"></param>public void Damage(int damageCount){hp -= damageCount;if (hp <= 0){// 死亡! 销毁对象!
            Destroy(gameObject);}}void OnTriggerEnter2D(Collider2D otherCollider){ShotScript shot = otherCollider.gameObject.GetComponent<ShotScript>();if (shot != null){// 判断子弹归属,避免误伤if (shot.isEnemyShot != isEnemy){Damage(shot.damage);// 销毁子弹// 记住，总是针对游戏的对象，否则你只是删除脚本
                Destroy(shot.gameObject); }}}
}

using UnityEngine;
using System.Collections;/// <summary>
/// 发射子弹
/// </summary>
public class WeaponScript : MonoBehaviour
{#region 1 - 变量/// <summary>/// 子弹预设/// </summary>public Transform shotPrefab;/// <summary>/// 两发子弹之间的发射间隔时间/// </summary>public float shootingRate = 0.25f;/// <summary>/// 当前冷却时间/// </summary>private float shootCooldown;#endregion// Use this for initializationvoid Start(){// 初始化冷却时间为0shootCooldown = 0f;}// Update is called once per framevoid Update(){// 冷却期间实时减少时间if (shootCooldown > 0){shootCooldown -= Time.deltaTime;}}/// <summary>/// 射击/// </summary>/// <param name="isEnemy">是否是敌人的子弹</param>public void Attack(bool isEnemy){if (CanAttack){if (isEnemy){SoundEffectsHelper.Instance.MakeEnemyShotSound();}else{SoundEffectsHelper.Instance.MakePlayerShotSound();}shootCooldown = shootingRate;// 创建一个子弹var shotTransform = Instantiate(shotPrefab) as Transform;// 指定子弹位置shotTransform.position = transform.position;// 设置子弹归属ShotScript shot = shotTransform.gameObject.GetComponent<ShotScript>();if (shot != null){shot.isEnemyShot = isEnemy;}// 设置子弹运动方向MoveScript move = shotTransform.gameObject.GetComponent<MoveScript>();if (move != null){// towards in 2D space is the right of the spritemove.direction = this.transform.right; }}}/// <summary>/// 武器是否准备好再次发射/// </summary>public bool CanAttack{get{return shootCooldown <= 0f;}}
}

// Update is called once per framevoid Update(){#region 射击控制// 5 - 射击bool shoot = Input.GetButtonDown("Fire1");shoot |= Input.GetButtonDown("Fire2");// 小心：对于Mac用户，按Ctrl +箭头是一个坏主意if (shoot){WeaponScript weapon = GetComponent<WeaponScript>();if (weapon != null){weapon.Attack(false);}}#endregion}

using UnityEngine;
using System.Collections;/// <summary>
/// 敌人通用行为
/// </summary>
public class EnemyScript : MonoBehaviour
{#region 变量private WeaponScript weapon;#endregionvoid Awake(){// 只检索一次武器weapon = GetComponent<WeaponScript>();}// Update is called once per framevoid Update(){// 自动开火if (weapon != null && weapon.CanAttack){weapon.Attack(true);}}
}

    /// <summary>/// 射击/// </summary>/// <param name="isEnemy">是否是敌人的子弹</param>public void Attack(bool isEnemy){if (CanAttack){if (isEnemy){SoundEffectsHelper.Instance.MakeEnemyShotSound();}else{SoundEffectsHelper.Instance.MakePlayerShotSound();}shootCooldown = shootingRate;// 创建一个子弹var shotTransform = Instantiate(shotPrefab) as Transform;// 指定子弹位置shotTransform.position = transform.position;// 设置子弹归属ShotScript shot = shotTransform.gameObject.GetComponent<ShotScript>();if (shot != null){shot.isEnemyShot = isEnemy;}// 设置子弹方向MoveScript move = shotTransform.gameObject.GetComponent<MoveScript>();if (move != null){// towards in 2D space is the right of the sprite//move.direction = move.direction; // 如果是敌人的子弹, 则改变方向和移动速度if (shot.isEnemyShot){move.direction.x = -1f;move.speed = new Vector2(15, 15);}else{move.direction.x = 1f;move.speed = new Vector2(10, 10);}}}}

    void OnCollisionEnter2D(Collision2D collision){if (collision.gameObject.ToString().IndexOf("Poulpi") >= 0){bool damagePlayer = false;// 与敌人发生碰撞EnemyScript enemy = collision.gameObject.GetComponent<EnemyScript>();if (enemy != null){// 杀死敌人HealthScript enemyHealth = enemy.GetComponent<HealthScript>();if (enemyHealth != null){enemyHealth.Damage(enemyHealth.hp);}damagePlayer = true;}// 玩家也受到伤害if (damagePlayer){HealthScript playerHealth = this.GetComponent<HealthScript>();if (playerHealth != null){playerHealth.Damage(1);}}}}

using UnityEngine;
using System.Collections;/// <summary>
/// 渲染扩展
/// </summary>
public static class RendererExtensions
{/// <summary>/// 检查对象渲染器是否在摄像机的可见范围内/// </summary>/// <param name="renderer">渲染对象</param>/// <param name="camera">摄像机</param>/// <returns></returns>public static bool IsVisibleFrom(this Renderer renderer, Camera camera){Plane[] planes = GeometryUtility.CalculateFrustumPlanes(camera);return GeometryUtility.TestPlanesAABB(planes, renderer.bounds);}
}

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;/// <summary>
/// 背景视差滚动脚本
/// </summary>
public class ScrollingScript : MonoBehaviour
{#region 变量/// <summary>/// 滚动速度/// </summary>public Vector2 speed = new Vector2(2, 2);/// <summary>/// 移动方向/// </summary>public Vector2 direction = new Vector2(-1, 0);/// <summary>/// 相机是否运动/// </summary>public bool isLinkedToCamera = false;/// <summary>/// 背景是否循环/// </summary>public bool isLooping = false;/// <summary>/// 渲染对象名单/// </summary>private List<Transform> backgroundPart;#endregion// Use this for initializationvoid Start(){// 只循环背景if (isLooping){// 获取该层渲染器的所有子集对象backgroundPart = new List<Transform>();for (int i = 0; i < transform.childCount; i++){Transform child = transform.GetChild(i);// 只添加可见子集if (child.renderer != null){backgroundPart.Add(child);}}// 根据位置排序// Note: 根据从左往右的顺序获取子集对象// 我们需要增加一些条件来处理所有可能的滚动方向。backgroundPart = backgroundPart.OrderBy(t => t.position.x).ToList();}}// Update is called once per framevoid Update(){// 创建运动状态Vector3 movement = new Vector3(speed.x * direction.x, speed.y * direction.y, 0);movement *= Time.deltaTime;transform.Translate(movement);// 移动相机if (isLinkedToCamera){Camera.main.transform.Translate(movement);}// 循环if (isLooping){// 获取第一个对象// 该列表的顺序是从左往右(基于x坐标)Transform firstChild = backgroundPart.FirstOrDefault();if (firstChild != null){// 检查子集对象(部分)是否在摄像机前已准备好.// We test the position first because the IsVisibleFrom// method is a bit heavier to execute.if (firstChild.position.x < Camera.main.transform.position.x){// 如果子集对象已经在摄像机的左侧,我们测试它是否完全在外面,以及是否需要被回收.if (firstChild.renderer.IsVisibleFrom(Camera.main) == false){// 获取最后一个子集对象的位置Transform lastChild = backgroundPart.LastOrDefault();Vector3 lastPosition = lastChild.transform.position;Vector3 lastSize = (lastChild.renderer.bounds.max - lastChild.renderer.bounds.min);// 将被回收的子集对象作为最后一个子集对象// Note: 当前只横向滚动.firstChild.position = new Vector3(lastPosition.x + lastSize.x, firstChild.position.y, firstChild.position.z);// 将被回收的子集对象设置到backgroundPart的最后位置.
                        backgroundPart.Remove(firstChild);backgroundPart.Add(firstChild);}}}}}
}

• 添加两个天空背景到0 - Background
• 添加一些平台到2 - Middleground
• 添加更多的敌人到3 - Foreground，放置在摄像机的右边

using UnityEngine;
using System.Collections;/// <summary>
/// 敌人通用行为
/// </summary>
public class EnemyScript : MonoBehaviour
{#region 变量/// <summary>/// 是否登场/// </summary>private bool hasSpawn;private MoveScript moveScript;private WeaponScript weapon;#endregionvoid Awake(){// 只检索一次武器weapon = GetComponent<WeaponScript>();// 当未登场的时候检索脚本以禁用moveScript = GetComponent<MoveScript>();}// Use this for initializationvoid Start(){hasSpawn = false;// 禁止一切// -- 碰撞机collider2D.enabled = false;// -- 移动moveScript.enabled = false;// -- 射击weapon.enabled = false;}// Update is called once per framevoid Update(){// 检查敌人是否登场if (hasSpawn == false){if (renderer.IsVisibleFrom(Camera.main)){Spawn();}}else{// 自动开火if (weapon != null && weapon.enabled && weapon.CanAttack){weapon.Attack(true);}// 超出摄像机视野,则销毁对象if (renderer.IsVisibleFrom(Camera.main) == false){Destroy(gameObject);}}}/// <summary>/// 激活自身/// </summary>private void Spawn(){hasSpawn = true;// 启用一切// -- 碰撞机collider2D.enabled = true;// -- 移动moveScript.enabled = true;// -- 射击weapon.enabled = true;}
}

        #region 确保没有超出摄像机边界var dist = (transform.position - Camera.main.transform.position).z;var leftBorder = Camera.main.ViewportToWorldPoint(new Vector3(0, 0, dist)).x;var rightBorder = Camera.main.ViewportToWorldPoint(new Vector3(1, 0, dist)).x;var topBorder = Camera.main.ViewportToWorldPoint(new Vector3(0, 0, dist)).y;var bottomBorder = Camera.main.ViewportToWorldPoint(new Vector3(0, 1, dist)).y;transform.position = new Vector3(Mathf.Clamp(transform.position.x, leftBorder, rightBorder),Mathf.Clamp(transform.position.y, topBorder, bottomBorder),transform.position.z);#endregion

using UnityEngine;
using System.Collections;/// <summary>
/// 从代码中创建粒子特效
/// </summary>
public class SpecialEffectsHelper : MonoBehaviour
{/// <summary>/// Singleton/// </summary>public static SpecialEffectsHelper Instance;public ParticleSystem smokeEffect;public ParticleSystem fireEffect;void Awake(){// Register the singletonif (Instance != null){Debug.LogError("Multiple instances of SpecialEffectsHelper!");}Instance = this;}// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){}/// <summary>/// 在给定位置创建爆炸特效/// </summary>/// <param name="position"></param>public void Explosion(Vector3 position){// 烟雾特效
        instantiate(smokeEffect, position);// 火焰特效
        instantiate(fireEffect, position);}/// <summary>/// 从预制体中实例化粒子特效/// </summary>/// <param name="prefab"></param>/// <returns></returns>private ParticleSystem instantiate(ParticleSystem prefab, Vector3 position){ParticleSystem newParticleSystem = Instantiate(prefab, position, Quaternion.identity) as ParticleSystem;// 确保它会被销毁
        Destroy(newParticleSystem.gameObject, newParticleSystem.startLifetime);return newParticleSystem;}
}

　　 /// <summary>/// 对敌人造成伤害并检查对象是否应该被销毁/// </summary>/// <param name="damageCount"></param>public void Damage(int damageCount){hp -= damageCount;if (hp <= 0){// 爆炸特效
            SpecialEffectsHelper.Instance.Explosion(transform.position);// 播放音效
            SoundEffectsHelper.Instance.MakeExplosionSound();// 死亡! 销毁对象!
            Destroy(gameObject);}}

using UnityEngine;
using System.Collections;/// <summary>
/// 创建音效实例
/// </summary>
public class SoundEffectsHelper : MonoBehaviour
{/// <summary>/// 静态实例/// </summary>public static SoundEffectsHelper Instance;public AudioClip explosionSound;public AudioClip playerShotSound;public AudioClip enemyShotSound;void Awake(){// 注册静态实例if (Instance != null){Debug.LogError("Multiple instances of SoundEffectsHelper!");}Instance = this;}public void MakeExplosionSound(){MakeSound(explosionSound);}public void MakePlayerShotSound(){MakeSound(playerShotSound);}public void MakeEnemyShotSound(){MakeSound(enemyShotSound);}/// <summary>/// 播放给定的音效/// </summary>/// <param name="originalClip"></param>private void MakeSound(AudioClip originalClip){// 做一个非空判断, 防止异常导致剩余操作被中止if (Instance.ToString() != "null"){// 因为它不是3D音频剪辑，位置并不重要。
            AudioSource.PlayClipAtPoint(originalClip, transform.position);}}
}

SoundEffectsHelper.Instance.MakeExplosionSound();

　　　　　　  if (isEnemy){SoundEffectsHelper.Instance.MakeEnemyShotSound();}else{SoundEffectsHelper.Instance.MakePlayerShotSound();}

using UnityEngine;
using System.Collections;/// <summary>
/// Title screen script
/// </summary>
public class MenuScript : MonoBehaviour
{// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){}void OnGUI(){const int buttonWidth = 84;const int buttonHeight = 60;// 在开始游戏界面绘制一个按钮if (// Center in X, 2/3 of the height in YGUI.Button(new Rect(Screen.width / 2 - (buttonWidth / 2), (2 * Screen.height / 3) - (buttonHeight / 2), buttonWidth, buttonHeight), "开始游戏")){// On Click, load the first level.// "Stage1" is the name of the first scene we created.Application.LoadLevel("Stage1");}}
}

using UnityEngine;
using System.Collections;/// <summary>
/// 开始或退出游戏
/// </summary>
public class GameOverScript : MonoBehaviour
{// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){}void OnGUI(){const int buttonWidth = 120;const int buttonHeight = 60;// 在x轴中心, y轴1/3处创建"重来"按钮if (GUI.Button(new Rect(Screen.width / 2 - (buttonWidth / 2), (1 * Screen.height / 3) - (buttonHeight / 2), buttonWidth, buttonHeight), "再来一次")){// 重新加载游戏场景Application.LoadLevel("Stage1");}// x轴中心, y轴2/3处创建"返回菜单"按钮if (GUI.Button(new Rect(Screen.width / 2 - (buttonWidth / 2), (2 * Screen.height / 3) - (buttonHeight / 2), buttonWidth, buttonHeight), "返回菜单")){// 加载菜单场景Application.LoadLevel("Menu");}}
}

    void OnDestroy(){// Game Over.// Add the script to the parent because the current game// object is likely going to be destroyed immediately.transform.parent.gameObject.AddComponent<GameOverScript>();}

using UnityEngine;
using System.Collections;/// <summary>
/// 制造平台
/// </summary>
public class MakePlatformScript : MonoBehaviour
{/// <summary>/// 平台预设体1/// </summary>public Transform platform1Prefab;/// <summary>/// 平台预设体2/// </summary>public Transform platform2Prefab;// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){if (transform.childCount < 4){if (Random.Range(0, 2) > 0){CreatePlatform1();}else{CreatePlatform2();}}}void CreatePlatform1(){var platformTransform = Instantiate(platform1Prefab) as Transform;platformTransform.position = new Vector3(Camera.main.transform.position.x + Random.Range(14, 23), Random.Range(-3, 3), 5);platformTransform.transform.parent = transform;}void CreatePlatform2(){var platformTransform = Instantiate(platform2Prefab) as Transform;platformTransform.position = new Vector3(Camera.main.transform.position.x + Random.Range(14, 23), Random.Range(-3, 3), 5);platformTransform.transform.parent = transform;}
}

using UnityEngine;
using System.Collections;/// <summary>
/// 制造敌人
/// </summary>
public class MakeEnemyScript : MonoBehaviour
{/// <summary>/// 敌人预设体/// </summary>public Transform enemyPrefab;// Use this for initializationvoid Start(){}// Update is called once per framevoid Update(){if (transform.childCount < 2){CreateEnemy();}}/// <summary>/// 创建敌人/// </summary>void CreateEnemy(){var enemyTransform = Instantiate(enemyPrefab) as Transform;enemyTransform.position = new Vector3(Camera.main.transform.position.x + 15, Random.Range(-4, 4), 0);enemyTransform.transform.parent = transform;MoveScript move = enemyTransform.gameObject.GetComponent<MoveScript>();if (move != null){move.direction.x = -1f;move.speed = new Vector2(3, 3);}}
}