一、基本操作演练【建议做】

• 下载 Fantasy Skybox FREE， 构建自己的游戏场景

1. 上Assest Store下载资源Fantasy Skybox FREE 和 Realistic Tree 9，下载后Assest出现如下文件
   

2.新建mysky，并将对应纹理拖入

3.设置场景天空盒，并加入摄像机

4.新建Terrian，并绘制地形

5.在周边添加几块地形，并使用terrian自带brush种草种树

6.效果

• 写一个简单的总结，总结游戏对象的使用

在实际游戏生产中我们依赖的模型、预制，是由最基础的游戏对象构成的：
Empty：作用是创建一个新的对象空间，也可作为子对象的容器，不显示，但最常用对象之一。
3D物体：
  基础 3D 物体：立方体、球体、胶囊体、圆柱体、平面、四边形
  构造 3D 物体：由三角形网格构建的物体：如地形等
Camera ：观察游戏世界的窗口
Light：游戏世界的光源，分为平行光（类似太阳光）、聚光灯（spot）、点光源（point）、区域光（area）
Audio：游戏世界的声音

通过对基础的游戏对象的使用，可以构建出复杂、完整、各种各样的游戏。

二、编程实践（二选一）

• 牧师与魔鬼 动作分离版
• 【2019开始的新要求】：设计一个裁判类，当游戏达到结束条件时，通知场景控制器游戏结束
  原始版本项目地址
  动作分离版项目地址

1.裁判类

将原始版本FirstController类中的check_game_over方法单独作为裁判类，原来的场景控制器FirstController需要在Awake和初始化函数中初始化一个裁判类。

public class JudgeController
{
    FirstController firstCtrl;

    public JudgeController(){
        firstCtrl = Director.getInstance().currentSceneController as FirstController;
    }

    //判断游戏状态
    public int UpdadeGameState(){
        int from_priest = 0;
        int from_devil = 0;
        int to_priest = 0;
        int to_devil = 0;

        int[] fromCount = firstCtrl.fromCoast.getCharacterNum ();
        from_priest += fromCount[0];
        from_devil += fromCount[1];

        int[] toCount = firstCtrl.toCoast.getCharacterNum ();
        to_priest += toCount[0];
        to_devil += toCount[1];

        if (to_priest + to_devil == 6)      // win
            return 2;

        int[] boatCount = firstCtrl.boat.getCharacterNum ();
        if (firstCtrl.boat.get_to_or_from () == -1) {   // boat at toCoast
            to_priest += boatCount[0];
            to_devil += boatCount[1];
        } else {    // boat at fromCoast
            from_priest += boatCount[0];
            from_devil += boatCount[1];
        }
        if (from_priest < from_devil && from_priest > 0) {      // lose
            return 1;
        }
        if (to_priest < to_devil && to_priest > 0) {
            return 1;
        }
        return 0;           // not finish
    }

2.动作分离

在原始代码中，游戏对象的移动由FirstController、MyCharacterController和BoatController类共同管理。在动作分离版的代码中，管理动作的代码被分解成以下三部分：CCActionManager用于管理所有移动动作，CCMoveAction用于管理“移动”这种动作，Move则是移动动作的实体。

CCActionManager类代码如下：

public class CCActionManager : UserAction {
    
    public FirstController controller;
    public CCMoveAction moveAction;

    public CCActionManager(){
        controller = Director.getInstance().currentSceneController as FirstController;
        moveAction = new CCMoveAction();
    }

    public void moveBoat() {
        if (controller.boat.isEmpty ())
            return;
        moveAction.MoveBoat(controller.boat);
        controller.userGUI.status = controller.judgeController.UpdadeGameState ();
    }

    public void characterIsClicked(MyCharacterController characterCtrl) {
        if (characterCtrl.isOnBoat ()) {
            CoastController whichCoast;
            if (controller.boat.get_to_or_from () == -1) { // to->-1; from->1
                whichCoast = controller.toCoast;
            } else {
                whichCoast = controller.fromCoast;
            }

            controller.boat.GetOffBoat (characterCtrl.getName());
            moveAction.MoveMyCharacter(characterCtrl,whichCoast.getEmptyPosition());
            characterCtrl.getOnCoast (whichCoast);
            whichCoast.getOnCoast (characterCtrl);

        } else {                                    // character on coast
            CoastController whichCoast = characterCtrl.getCoastController ();

            if (controller.boat.getEmptyIndex () == -1) {       // boat is full
                return;
            }

            if (whichCoast.get_to_or_from () != controller.boat.get_to_or_from ())  // boat is not on the side of character
                return;

            whichCoast.getOffCoast(characterCtrl.getName());
            moveAction.MoveMyCharacter(characterCtrl,controller.boat.getEmptyPosition());
            characterCtrl.getOnBoat (controller.boat);
            controller.boat.GetOnBoat (characterCtrl);
        }
        controller.userGUI.status = controller.judgeController.UpdadeGameState ();
    }

    public void restart() {
        controller.boat.reset ();
        controller.fromCoast.reset ();
        controller.toCoast.reset ();
        for (int i = 0; i < controller.characters.Length; i++) {
            controller.characters [i].reset ();
        }
    }
}

CCMoveAction类代码如下：

public class CCMoveAction
{
    public void MoveMyCharacter(MyCharacterController characterCtrl,Vector3 destination){
        characterCtrl.moveScript.setDestination(destination);
    }

    public void MoveBoat(BoatController bostCtrl) {
        if (bostCtrl.to_or_from == -1) {
            bostCtrl.moveScript.setDestination(bostCtrl.fromPosition);
            bostCtrl.to_or_from = 1;
        } else {
            bostCtrl.moveScript.setDestination(bostCtrl.toPosition);
            bostCtrl.to_or_from = -1;
        }
    }
}

CCMoveAction类代码如下：

public class Move: MonoBehaviour
{
    readonly float move_speed = 20;

    int moving_status;  // 0->not moving, 1->moving to middle, 2->moving to dest
    Vector3 dest;
    Vector3 middle;
    void Update() {
        if (moving_status == 1) {
            transform.position = Vector3.MoveTowards (transform.position, middle, move_speed * Time.deltaTime);
            if (transform.position == middle) {
                moving_status = 2;
            }
        } else if (moving_status == 2) {
            transform.position = Vector3.MoveTowards (transform.position, dest, move_speed * Time.deltaTime);
            if (transform.position == dest) {
                moving_status = 0;
            }
        }
    }
        
    public void setDestination(Vector3 _dest) {
        dest = _dest;
        middle = _dest;
        if (_dest.y == transform.position.y) {  // boat moving
            moving_status = 2;
        }
        else if (_dest.y < transform.position.y) {  // character from coast to boat
            middle.y = transform.position.y;
        } else {                                // character from boat to coast
            middle.x = transform.position.x;
        }
        moving_status = 1;
    }

    public void reset() {
        moving_status = 0;
    }

}

运行效果与原版相同
具体代码请见