二、游戏场景：

Start场景：

Game场景：

using UnityEngine;public class CamerSet : MonoBehaviour {public Camera camera;public GameObject player;public float cameraChangeSize = 5f;public float sizeChangeSpeed = 2f;public float maxSize = 10f;public float minSize = -5f;void Start () {}//保证摄像头跟随主人公且保持在一定范围内void Update () {cameraChangeSize = player.transform.position.y + 5f;cameraChangeSize = cameraChangeSize >= maxSize ? maxSize : cameraChangeSize;cameraChangeSize = cameraChangeSize <= minSize ? minSize : cameraChangeSize;camera.orthographicSize = Mathf.Lerp(camera.orthographicSize, cameraChangeSize, Time.deltaTime * sizeChangeSpeed);}
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class ScrollBG : MonoBehaviour {public float scrollSpeed = 0.5f;private float targetOffset;void Start () {}// Update is called once per framevoid Update () {targetOffset += Time.deltaTime * scrollSpeed;//主纹理偏移 完成背景的自动滚动GetComponent<Renderer>().material.mainTextureOffset = new Vector2(targetOffset, 0);}
}

Cube_A、Cube_B:初始舞台

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class PlayerControll : MonoBehaviour {//枚举主人公状态public enum PlayerState {Run,Jump,DoubleJump,Die}public PlayerState playerState;public float jumpPower = 200f;public AudioClip[] Sound;public Animator animator;public GameManger gameManger;public bool isDie = false;void Start () {//  Debug.Log(gameManger.coins);}// Update is called once per framevoid Update () {//检测主人公是否跳跃和双跳if (Input.GetKeyDown(KeyCode.Space)) {if (playerState == PlayerState.DoubleJump||playerState==PlayerState.Die) ;else if (playerState == PlayerState.Jump)DoubleJump();elseJump();}}void SoundPlayer(int Index) {GetComponent<AudioSource>().clip = Sound[Index];GetComponent<AudioSource>().Play();}private void OnTriggerEnter(Collider other) {switch (other.gameObject.name) {case "Coin":Destroy(other.gameObject);GetCion();break;case "DiezoneA":if (playerState != PlayerState.Die)GameOver();break;case "DiezoneB":if (playerState != PlayerState.Die)GameOver();break;}}void GetCion() {SoundPlayer(0);gameManger.GetCoins();} private void OnCollisionEnter(Collision collision) {if (playerState != PlayerState.Run&&playerState!=PlayerState.Die) Run();}void Run() {playerState = PlayerState.Run;animator.SetBool("isInGroud", true);}void Jump() {playerState = PlayerState.Jump;this.GetComponent<Rigidbody>().AddForce(new Vector3(0, jumpPower, 0));SoundPlayer(1);animator.SetTrigger("Jump");animator.SetBool("isInGroud", false);}void DoubleJump() {playerState = PlayerState.DoubleJump;this.GetComponent<Rigidbody>().AddForce(new Vector3(0, jumpPower, 0));SoundPlayer(1);animator.SetTrigger("DoubleJump");animator.SetBool("isInGroud", false);}void GameOver() {playerState = PlayerState.Die;isDie = true;SoundPlayer(2);}public string GetPlayerState (){return playerState.ToString();}
}

主人公动画控制器：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class BlockLoop : MonoBehaviour {public float speed = 3f;public GameObject aZone;public GameObject bZone;public GameObject[] blockGameObjects;//制作好的各种地形带金币void Start () {}// Update is called once per framevoid Update () {MoveBlock();}//舞台的转动void MoveBlock() {aZone.transform.Translate(Vector3.left * speed * Time.deltaTime);bZone.transform.Translate(Vector3.left * speed * Time.deltaTime);if (bZone.transform.position.x <= 0) {Destroy(aZone);aZone = bZone;MakeNewBlock();}}//创建新舞台void MakeNewBlock() {int blockIndex = Random.Range(0, blockGameObjects.Length);bZone = Instantiate(blockGameObjects[blockIndex], new Vector3(aZone.transform.position.x+30, -5, 0), transform.rotation) as GameObject;}
}

脚本GameManger ：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;public class GameManger : MonoBehaviour {private float runSpeed = 10f;private float runMeter = 0f;private float coins = 0;private PlayerControll playerControll;private bool isPause;public Text coinText;public Text runText;public Text resultCoinText;public Text resultRunText;public Image resultImage;    private void Awake() {//隐藏表示结果的uiresultImage.gameObject.SetActive(false);playerControll = GameObject.Find("Player").GetComponent<PlayerControll>();isPause = false;}void Update() {if (playerControll.isDie) {resultImage.gameObject.SetActive(true);return;}runMeter += Time.deltaTime * runSpeed;runText.text = "距离  " + (int)runMeter;resultRunText.text = "" + (int)runMeter;}public void GetCoins() {resultCoinText.text=coinText.text = ""+(++coins);}//replay加载到Start场景public void Replay() {Application.LoadLevel("start");}//游戏暂停的实现public void Pause() {if (Input.GetKeyDown(KeyCode.Space)) return;isPause = !isPause;if (isPause)Time.timeScale = 0;elseTime.timeScale = 1;}
}

UI设计：

三、运行截图：

四、源码：