unity实现简单的贪吃蛇游戏

本文实例为大家分享了unity实现简单贪吃蛇游戏的具体代码，供大家参考，具体内容如下

satuicontroller代码

using unityengine;
using unityengine.ui;

public class startuicontroller : monobehaviour
{
  public text lasttext;
  public text besttext;
  public toggle blue;
  public toggle yellow;
  public toggle border;
  public toggle noborder;

  void awake()
  {
    lasttext.text = "上次：长度" + playerprefs.getint("lastl", 0) + "，分数" + playerprefs.getint("lasts", 0);
    besttext.text = "最好：长度" + playerprefs.getint("bestl", 0) + "，分数" + playerprefs.getint("bests", 0);
  }

  void start()
  {
    if (playerprefs.getstring("sh", "sh01") == "sh01")
    {
      blue.ison = true;
      playerprefs.setstring("sh", "sh01");
      playerprefs.setstring("sb01", "sb0101");
      playerprefs.setstring("sb02", "sb0102");
    }
    else
    {
      yellow.ison = true;
      playerprefs.setstring("sh", "sh02");
      playerprefs.setstring("sb01", "sb0201");
      playerprefs.setstring("sb02", "sb0202");
    }
    if (playerprefs.getint("border", 1) == 1)
    {
      border.ison = true;
      playerprefs.setint("border", 1);
    }
    else
    {
      noborder.ison = true;
      playerprefs.setint("border", 0);
    }
  }

  public void blueselected(bool ison)
  {
    if (ison)
    {
      playerprefs.setstring("sh", "sh01");
      playerprefs.setstring("sb01", "sb0101");
      playerprefs.setstring("sb02", "sb0102");
    }
  }

  public void yellowselected(bool ison)
  {
    if (ison)
    {
      playerprefs.setstring("sh", "sh02");
      playerprefs.setstring("sb01", "sb0201");
      playerprefs.setstring("sb02", "sb0202");
    }
  }

  public void borderselected(bool ison)
  {
    if (ison)
    {
      playerprefs.setint("border", 1);
    }
  }

  public void noborderselected(bool ison)
  {
    if (ison)
    {
      playerprefs.setint("border", 0);
    }
  }

  public void startgame()
  {
    unityengine.scenemanagement.scenemanager.loadscene(1);
  }
}

snakehead代码

using system.collections;
using system.collections.generic;
//using system.linq;
using unityengine;
using unityengine.ui;

public class snakehead : monobehaviour
{
  public list<transform> bodylist = new list<transform>();
  public float velocity = 0.35f;
  public int step;
  private int x;
  private int y;
  private vector3 headpos;
  private transform canvas;
  private bool isdie = false;

  public audioclip eatclip;
  public audioclip dieclip;
  public gameobject dieeffect;
  public gameobject bodyprefab;
  public sprite[] bodysprites = new sprite[2];

  void awake()
  {
    canvas = gameobject.find("canvas").transform;
    //通过resources.load(string path)方法加载资源，path的书写不需要加resources/以及文件扩展名
    gameobject.getcomponent<image>().sprite = resources.load<sprite>(playerprefs.getstring("sh", "sh02"));
    bodysprites[0] = resources.load<sprite>(playerprefs.getstring("sb01", "sb0201"));
    bodysprites[1] = resources.load<sprite>(playerprefs.getstring("sb02", "sb0202"));
  }

  void start()
  {
    invokerepeating("move", 0, velocity);
    x = 0;y = step;
  }

  void update()
  {
    if (input.getkeydown(keycode.space) && mainuicontroller.instance.ispause == false && isdie == false)
    {
      cancelinvoke();
      invokerepeating("move", 0, velocity - 0.2f);
    }
    if (input.getkeyup(keycode.space) && mainuicontroller.instance.ispause == false && isdie == false)
    {
      cancelinvoke();
      invokerepeating("move", 0, velocity);
    }
    if (input.getkey(keycode.w) && y != -step && mainuicontroller.instance.ispause == false && isdie == false)
    {
      gameobject.transform.localrotation = quaternion.euler(0, 0, 0);
      x = 0;y = step;
    }
    if (input.getkey(keycode.s) && y != step && mainuicontroller.instance.ispause == false && isdie == false)
    {
      gameobject.transform.localrotation = quaternion.euler(0, 0, 180);
      x = 0; y = -step;
    }
    if (input.getkey(keycode.a) && x != step && mainuicontroller.instance.ispause == false && isdie == false)
    {
      gameobject.transform.localrotation = quaternion.euler(0, 0, 90);
      x = -step; y = 0;
    }
    if (input.getkey(keycode.d) && x != -step && mainuicontroller.instance.ispause == false && isdie == false)
    {
      gameobject.transform.localrotation = quaternion.euler(0, 0, -90);
      x = step; y = 0;
    }
  }

  void move()
  {
    headpos = gameobject.transform.localposition;                        //保存下来蛇头移动前的位置
    gameobject.transform.localposition = new vector3(headpos.x + x, headpos.y + y, headpos.z); //蛇头向期望位置移动
    if (bodylist.count > 0)
    {
      //由于我们是双色蛇身，此方法弃用
      //bodylist.last().localposition = headpos;                       //将蛇尾移动到蛇头移动前的位置
      //bodylist.insert(0, bodylist.last());                         //将蛇尾在list中的位置更新到最前
      //bodylist.removeat(bodylist.count - 1);                        //移除list最末尾的蛇尾引用

      //由于我们是双色蛇身，使用此方法达到显示目的
      for (int i = bodylist.count - 2; i >= 0; i--)                      //从后往前开始移动蛇身
      {
        bodylist[i + 1].localposition = bodylist[i].localposition;             //每一个蛇身都移动到它前面一个节点的位置
      }
      bodylist[0].localposition = headpos;                          //第一个蛇身移动到蛇头移动前的位置
    }
  }

  void grow()
  {
    audiosource.playclipatpoint(eatclip, vector3.zero);
    int index = (bodylist.count % 2 == 0) ? 0 : 1;
    gameobject body = instantiate(bodyprefab, new vector3(2000, 2000, 0), quaternion.identity);
    body.getcomponent<image>().sprite = bodysprites[index];
    body.transform.setparent(canvas, false);
    bodylist.add(body.transform);
  }

  void die()
  {
    audiosource.playclipatpoint(dieclip, vector3.zero);
    cancelinvoke();
    isdie = true;
    instantiate(dieeffect);
    playerprefs.setint("lastl", mainuicontroller.instance.length);
    playerprefs.setint("lasts", mainuicontroller.instance.score);
    if (playerprefs.getint("bests", 0) < mainuicontroller.instance.score)
    {
      playerprefs.setint("bestl", mainuicontroller.instance.length);
      playerprefs.setint("bests", mainuicontroller.instance.score);
    }
    startcoroutine(gameover(1.5f));
  }

  ienumerator gameover(float t)
  {
    yield return new waitforseconds(t);
    unityengine.scenemanagement.scenemanager.loadscene(1);
  }

  private void ontriggerenter2d(collider2d collision)
  {
    if (collision.gameobject.comparetag("food"))
    {
      destroy(collision.gameobject);
      mainuicontroller.instance.updateui();
      grow();
      foodmaker.instance.makefood((random.range(0, 100) < 20) ? true : false);
    }
    else if (collision.gameobject.comparetag("reward"))
    {
      destroy(collision.gameobject);
      mainuicontroller.instance.updateui(random.range(5, 15) * 10);
      grow();
    }
    else if (collision.gameobject.comparetag("body"))
    {
      die();
    }
    else
    {
      if (mainuicontroller.instance.hasborder)
      {
        die();
      }
      else
      {
        switch (collision.gameobject.name)
        {
          case "up":
            transform.localposition = new vector3(transform.localposition.x, -transform.localposition.y + 30, transform.localposition.z);
            break;
          case "down":
            transform.localposition = new vector3(transform.localposition.x, -transform.localposition.y - 30, transform.localposition.z);
            break;
          case "left":
            transform.localposition = new vector3(-transform.localposition.x + 180, transform.localposition.y, transform.localposition.z);
            break;
          case "right":
            transform.localposition = new vector3(-transform.localposition.x + 240, transform.localposition.y, transform.localposition.z);
            break;
        }
      }
    }
  }
}

mainuicontroller

using unityengine;
using unityengine.ui;

public class mainuicontroller : monobehaviour
{
  private static mainuicontroller _instance;
  public static mainuicontroller instance
  {
    get
    {
      return _instance;
    }
  }

  public bool hasborder = true;
  public bool ispause = false;
  public int score = 0;
  public int length = 0;
  public text msgtext;
  public text scoretext;
  public text lengthtext;
  public image pauseimage;
  public sprite[] pausesprites;
  public image bgimage;
  private color tempcolor;

  void awake()
  {
    _instance = this;
  }

  void start()
  {
    if (playerprefs.getint("border", 1) == 0)
    {
      hasborder = false;
      foreach (transform t in bgimage.gameobject.transform)
      {
        t.gameobject.getcomponent<image>().enabled = false;
      }
    }
  }

  void update()
  {
    switch (score / 100)
    {
      case 0:
      case 1:
      case 2:
        break;
      case 3:
      case 4:
        colorutility.tryparsehtmlstring("#cceeffff", out tempcolor);
        bgimage.color = tempcolor;
        msgtext.text = "阶段" + 2;
        break;
      case 5:
      case 6:
        colorutility.tryparsehtmlstring("#ccffdbff", out tempcolor);
        bgimage.color = tempcolor;
        msgtext.text = "阶段" + 3;
        break;
      case 7:
      case 8:
        colorutility.tryparsehtmlstring("#ebffccff", out tempcolor);
        bgimage.color = tempcolor;
        msgtext.text = "阶段" + 4;
        break;
      case 9:
      case 10:
        colorutility.tryparsehtmlstring("#fff3ccff", out tempcolor);
        bgimage.color = tempcolor;
        msgtext.text = "阶段" + 5;
        break;
      default:
        colorutility.tryparsehtmlstring("#ffdaccff", out tempcolor);
        bgimage.color = tempcolor;
        msgtext.text = "无尽阶段";
        break;
    }
  }

  public void updateui(int s = 5, int l = 1)
  {
    score += s;
    length += l;
    scoretext.text = "得分:\n" + score;
    lengthtext.text = "长度:\n" + length;
  }

  public void pause()
  {
    ispause = !ispause;
    if (ispause)
    {
      time.timescale = 0;
      pauseimage.sprite = pausesprites[1];
    }
    else
    {
      time.timescale = 1;
      pauseimage.sprite = pausesprites[0];
    }
  }

  public void home()
  {
    unityengine.scenemanagement.scenemanager.loadscene(0);
  }
}

foodmaker代码

using unityengine;
using unityengine.ui;

public class foodmaker : monobehaviour
{
  private static foodmaker _instance;
  public static foodmaker instance
  {
    get
    {
      return _instance;
    }
  }

  public int xlimit = 21;
  public int ylimit = 11;
  public int xoffset = 7;
  public gameobject foodprefab;
  public gameobject rewardprefab;
  public sprite[] foodsprites;
  private transform foodholder;

  void awake()
  {
    _instance = this;
  }

  void start()
  {
    foodholder = gameobject.find("foodholder").transform;
    makefood(false);
  }

  public void makefood(bool isreward)
  {
    int index = random.range(0, foodsprites.length);
    gameobject food = instantiate(foodprefab);
    food.getcomponent<image>().sprite = foodsprites[index];
    food.transform.setparent(foodholder, false);
    int x = random.range(-xlimit + xoffset, xlimit);
    int y = random.range(-ylimit, ylimit);
    food.transform.localposition = new vector3(x * 30, y * 30, 0);
    if (isreward)
    {
      gameobject reward = instantiate(rewardprefab);
      reward.transform.setparent(foodholder, false);
      x = random.range(-xlimit + xoffset, xlimit);
      y = random.range(-ylimit, ylimit);
      reward.transform.localposition = new vector3(x * 30, y * 30, 0);
    }
  }
}

代码放置如下

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。