Unity3D中平衡类游戏player的基本应用实例

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在场景中创建一个小球,这个小球就是平衡游戏的主角,让小球滚动来,通过控制滚动的方向来实现平衡.

搭建场景如下:

给小球添加刚体和Sphere Collider

然后简单粗暴上脚本:挂载到Ball上

using UnityEngine;using System.Collections;public class BallMovement : MonoBehaviour {// attach this script to ball// Use this for initialization, change values in Inspector for tweakingpublic float normalForce = 200.0f;public float boostForce = 15000.0f;public float maxSpeed = 50.0f;private GameObject ball;private bool boostActive;private Vector3 ballStartPosition;private Vector3 ballDirection, ballForward; private Vector3 ballPosition1, ballPosition2; // used to determine the effective movement of the ball between updatesprivate float directionHorizontal, directionVertical;private float distanceToGround; // used to check if ball is on groundvoid Start () {distanceToGround = GetComponent<Collider>().bounds.extents.y + 0.1f;  // 初始化并增加安全系数以解释不平整的地面ballStartPosition = transform.position;  // 存储启动位置在水平复位的情况下ballPosition1 = transform.position;//初始化运动向量，用来计算方向向量 ball = GameObject.FindGameObjectWithTag(Tags.ball);if (ball == null) {Debug.LogError ("<color=blue>Marble Kit error:</color>: There needs exactly one object with the tag 'Ball' in the scene");}}void Update () // 在player上创建运动矢量{  directionHorizontal = Input.GetAxis("Horizontal");directionVertical = Input.GetAxis("Vertical");ballDirection.x = directionHorizontal;ballDirection.z = directionVertical;ballDirection.y = 0;boostActive = Input.GetKey("space");  // 添加一个加速的判断}void FixedUpdate()  // physics is executed during FixedUpdate, so we use this too{GetComponent<Rigidbody>().AddForce(ballDirection * normalForce * Time.deltaTime);  // add force/speed to ball in vector directionballDirection = Vector3.zero;       // 然后重置  否则力将持续不断的应用ballPosition2 = transform.position;  // create a forward vector = direction the ball moves effectively between updates. I found the .direction method not to yield good resultsballForward = ballPosition2 - ballPosition1;//创建一个正向向量=球在更新之间有效移动的方向。我发现，不会产生好结果的方向的方法if (boostActive && BallIsGrounded())  // 满足点击键盘空格键的布尔值,和在地面上{ballForward.y = 0;GetComponent<Rigidbody>().AddForce(ballForward * boostForce * Time.deltaTime);}if (GetComponent<Rigidbody>().velocity.magnitude > maxSpeed)  // 限制最大速度{GetComponent<Rigidbody>().velocity = GetComponent<Rigidbody>().velocity.normalized * maxSpeed;}ballPosition2 = ballPosition1;// 更改矢量以允许下一个球方向检查。ballPosition1 = transform.position;}public void ResetBallPosition(){this.transform.position = ballStartPosition;this.GetComponent<Rigidbody>().velocity = Vector3.zero;ball.SetActive(true);}bool BallIsGrounded() // checks if ball is on ground{return Physics.Raycast(transform.position, -Vector3.up, distanceToGround);}}

应用实例:平衡小球

平衡小球Demo下载:点击打开链接

http://download.csdn.net/detail/gaoheshun/9899079

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