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平平无奇小天才

《SOMADAY》制作解析

游戏主角

1.创建一个空物体，并添加【Physics】-【Character Controller】角色控制器组件，这个组件可以提供基本的控制和碰撞功能，调整碰撞体位置和大小。

2.添加【Ragidbody】组件，取消【Use Gravity】去掉重力模拟，并选中【Is Kinematic】使其不受物理演算影响。

[info]脚本 Player.cs[/info] [success]控制移动部分的代码[/success] 
//前后左右运动
if (Input.GetKey(KeyCode.W))
{
 zm += m_MoveSpeed * Time.deltaTime;
}
else if (Input.GetKey(KeyCode.S))
{
 zm -= m_MoveSpeed * Time.deltaTime;
}
 

if (Input.GetKey(KeyCode.A))
{
 xm -= m_MoveSpeed * Time.deltaTime;
}
else if (Input.GetKey(KeyCode.D))
{
 xm += m_MoveSpeed * Time.deltaTime;
}

//使用角色控制器提供的Move函数移动，它会自动检测碰撞
m_Ch.Move(m_Transform.TransformDirection(new Vector3(xm, ym, zm)));
[success]控制跳跃部分的代码[/success] 
//重力运动
ym -= m_Gravity * Time.deltaTime * 3;

//跳跃
fJumpTime -= Time.deltaTime;
if (Input.GetKeyDown(KeyCode.Space) && fJumpTime < 0 && groundScript.IsOnGround) //此处有bug，可通过判断Player是否与地面接触解决
{
 fJumpTime = 0.2f;
}
if(fJumpTime > 0)
{
 ym += m_Gravity * Time.deltaTime * 6;
}

 该部分存在bug，游戏中偶尔无法跳跃。因为目前水平有限，暂时只能想到不好的判断是否落地的方法；

（一开始想通过Rigidbody.AddForce 方法，后来发现。。因为其不受物理演算影响，行不通_(:з」∠)_）

即在角色模型上绑定一个触发器，当触发器与地面接触时即为落地状态，当满足按下[kbd]Space[/kbd]键、fJumpTime（跃起时间）小于0、落地状态时将fJumpTime（跃起时间）置为0.2秒，也就是在这0.2秒的时间里角色会以m_Gravity * Time.deltaTime * ( 6 – 3 )的速率上升。

其实觉得【Character Controller】角色控制器组件应该存在直接判断是否落地的API的，但是我不会 _(:з」∠)_

摄像机

[info]脚本 Player.cs[/info] [success]摄像机属性[/success] 
private Transform m_CamTransform; //Transform
private Vector3 m_CamRot; //旋转角度
private float m_CamHeight = 0.55f; //摄像机高度（主角身高）
[success]在Start函数中初始化摄像机位置和旋转角度[/success] 
//获取摄像机
m_CamTransform = Camera.main.transform;
//设置摄像机初始位置
Vector3 pos = m_Transform.position;
pos.y += m_CamHeight;
m_CamTransform.position = pos;
//设置摄像机旋转方向与主角一致
m_CamTransform.rotation = m_Transform.rotation;
m_CamRot = m_CamTransform.eulerAngles;
[success]实时旋转摄像机[/success] 
//摄像机
//获取鼠标移动距离
float rh = Input.GetAxis("Mouse X");
float rv = Input.GetAxis("Mouse Y");

//旋转摄像机
m_CamRot.x -= rv;
m_CamRot.y += rh;
m_CamTransform.eulerAngles = m_CamRot;

//使主角的面向方向与摄像机一致
Vector3 camrot = m_CamTransform.eulerAngles;
camrot.x = 0;
camrot.z = 0;
m_Transform.eulerAngles = camrot;

//移动主角代码略
 
//使摄像机位置与主角一致
Vector3 pos = m_Transform.position;
pos.y += m_CamHeight;
m_CamTransform.position = pos;

 通过控制鼠标旋转摄像机方向，是主角跟随摄像机的Y轴旋转方向，在移动主角的时候，又使摄像机跟随主角移动。

武器

将武器绑定到摄像机上。

导入武器模型，调整位置和方向，并将其设置为摄像机的子物体，如图：

敌人AI

此部分应用Unity 3D提供的寻路API。

1.选中模型，单击【Inspector】窗口Static旁边的小三角符号显示出下拉菜单，确定【Navigation Static】被选中，Unity将知道这样的模型用于寻路计算。

2.菜单栏中打开【Windows】-【Navigation】窗口。

【Object】用来定义模型，选择模型。如果取消选中【Navigation Static】，该模型不会用于计算。

【Bake】主要定义地形对寻路的影响。

3.在Navigation窗口设置好后，选择下方Bake按钮对地形进行计算。选择Clear会清除计算结果。

4.导入怪物模型，添加【Component】-【Nav Mesh Agent】组件，然后在Inspector窗口进一步设置。

[info]脚本 Enemy.cs[/info] 
m_Transform = gameObject.transform;

m_Player = GameObject.Find("Player").GetComponent<Player>();

//获得寻路组件
m_Agent = gameObject.GetComponent<NavMeshAgent>();
//设定速度
m_Agent.speed = m_MoveSpeed;
//设置寻路目标
m_Agent.SetDestination(m_Player.m_Transform.position);

 这是敌人脚本，在Start函数中获得NavMeshAgent组件，然后调用SetDestination函数设置目标点，即可自动追击主角

5.将脚本指定给怪物模型，运行游戏，敌人会找出最短路径向主角位置移动，并会躲开障碍物。

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