Unity—项目小技术总结
目录
1.将视频做背景播放
2.含进度条的异步加载场景
3.进入触发，显示简单对话系统
4.书翻页
5.3D物体在画布上显示
6.移动、旋转、缩放物体
7.动画显示与隐藏菜单、卷轴等
8.使用PlayerPrefs切换场景时保存和读取人物位置
1.将视频做背景播放
空物体上挂载Video Player组件
Render Mode改为Camera Far Plane
2.含进度条的异步加载场景
Unity中使用协程搭配异步写代码更佳，例如通过异步加载场景，在加载过程中通过每帧更新进度条给予玩家一个反馈，可以在协程中调用异步加载场景的方法，然后暂停协程，等待当前一帧结束，然后更新进度条，反复之后，就完成进度条显示进度加载场景效果
制作步骤：
①做一个Panel,放背景
②画布上放Slider（Handle修改进度条图片，Fill改颜色）
③Text显示文字
④编写脚本 切换场景按钮On Click() 事件调用LoadNextLevel()方法
public class LoadManager : MonoBehaviour
{
public GameObject loadScreen;
public Slider slider;
public Text text;
public void LoadNextLevel()
{
StartCoroutine(Loadlevel());
}
IEnumerator Loadlevel()
{
loadScreen.SetActive(true);
AsyncOperation operation = SceneManager.LoadSceneAsync(8);
operation.allowSceneActivation = false;
//异步加载到90%左右停住，防止加载完毕后直接切换场景
while (!operation.isDone)//isDone操作是否已完成
{
slider.value = operation.progress;//获取操作进度
text.text = operation.progress * 100 + "%";
if (operation.progress >= 0.9f)
{
slider.value = 1;
text.text = "按下任意按键，继续……";
if (Input.anyKeyDown)
{
operation.allowSceneActivation = true;
//允许在场景准备就绪后立即激活场景
}
}
yield return null;
}
}
}3.进入触发，显示简单对话系统
通过数组显示文本框
①新建对话框，文字
②新建空物体挂载DialogueManager_脚本
public class DialogueManager_ : MonoBehaviour
{
public static DialogueManager_ instance;//静态的DialogueManager_属性instance保证了它可以通过类访问，而不是通过实例访问
public GameObject dialogueBox_baimeiren;
public Text dialogueText;
[TextArea(1, 3)] public string[] dialogueLines;
[SerializeField] private int currentLine;
// Start is called before the first frame update
void Start()
{
dialogueText.text = dialogueLines[currentLine];
}
// Update is called once per frame
void Update()
{
if (dialogueBox_.activeInHierarchy)
{
if (Input.GetMouseButtonUp(0))
{
currentLine++;
if (currentLine < dialogueLines.Length)
dialogueText.text = dialogueLines[currentLine];
else
dialogueBox_.SetActive(false);
}
}
}
public void ShowDialogue(string[] _newLines)
{
dialogueLines = _newLines;
currentLine = 0;
dialogueText.text = dialogueLines[currentLine];
dialogueBox_.SetActive(true);
}
public void Awake()
{
instance = this;
}
}③触发地点挂载Talkable_
public class Talkable_ : MonoBehaviour
{
[SerializeField] private bool isEntered;
[TextArea(1, 3)] public string[] lines;
private void OnTriggerEnter(Collider other)
{
if (other.CompareTag("Player"))
{
isEntered = true;
}
}
private void OnTriggerExit(Collider other)
{
if (other.CompareTag("Player"))
{
isEntered = false;
}
}
// Update is called once per frame
void Update()
{
if (isEntered && Input.GetKeyDown(KeyCode.Q))
//if (isEntered)
{
DialogueManager_.instance.ShowDialogue(lines);
}
}
}4.书翻页
——Book_Page Curl Pro2.0插件
BookPro里Papers添加页数，对应每页修改其图片
5.3D物体在画布上显示
Canvas的Render Mode-Screen Space-Camera
6.移动、旋转、缩放物体
public class MouseRotate : MonoBehaviour
{
public Transform m_target;
private bool isDown1;
private bool isDown0;
void Start()
{
isDown1 = false;
isDown0 = false;
}
void Update()
{
// 按下了鼠标中键
if (Input.GetMouseButtonDown(1))
isDown1 = true;
// 抬起了鼠标中键
if (Input.GetMouseButtonUp(1))
isDown1 = false;
// 按下鼠标右键
if (Input.GetMouseButtonDown(0))
isDown0 = true;
// 抬起了鼠标右键
if (Input.GetMouseButtonUp(0))
isDown0 = false;
// 缩放 Input.mouseScrollDelta.y当前的鼠标滚动增量
m_target.localScale += Time.deltaTime * m_target.localScale * Input.mouseScrollDelta.y*8;
}
private void LateUpdate()
{
if (isDown1)
{
// 计算单位时间内鼠标的偏移量
float x = Input.GetAxis("Mouse X");
float y = Input.GetAxis("Mouse Y");
Vector3 rot = new Vector3(y, -x, 0);
float spd = 10; //速度
m_target.Rotate(spd * rot, Space.World);
}
if (isDown0)
{
// 计算单位时间内鼠标的偏移量
float x = Input.GetAxis("Mouse X");
float y = Input.GetAxis("Mouse Y");
float spd = 0.4f; //速度
m_target.Translate(spd * new Vector3(x, y), Space.World);
}
}
}7.动画显示与隐藏菜单、卷轴等
public class SilderMenuAnim : MonoBehaviour
{
public GameObject PanelMenu;
public void ShowHideMenu()
{
if (PanelMenu != null)
{
Animator animator = PanelMenu.GetComponent();
if(animator!=null)
{
bool isOpen = animator.GetBool("show");
animator.SetBool("show", !isOpen);
}
}
}
} 8.使用PlayerPrefs切换场景时保存和读取人物位置
挂载在第三人称上，以下脚本：
public class playerposition : MonoBehaviour
{
public float PlayerPosX = 0.0f, PlayerPosY = 0.0f, PlayerPosZ = 0.0f;
void Start()
{
PlayerPosX = PlayerPrefs.GetFloat("playerPosX");
PlayerPosY = PlayerPrefs.GetFloat("playerPosY");
PlayerPosZ = PlayerPrefs.GetFloat("playerPosZ");
if (PlayerPosX == 0.0f)
{
gameObject.transform.position = new Vector3(0, 0.2f, 0f);
}
if (PlayerPosX != 0.0f)
{
gameObject.transform.position = new Vector3(PlayerPosX, PlayerPosY, PlayerPosZ);
}
}挂载在物体上，以下脚本：
public class Into: MonoBehaviour
{
public GameObject text;
public GameObject player;
private void OnTriggerStay(Collider other)
{
if (other.CompareTag("Player") && Input.GetKeyDown(KeyCode.Z))
{
SceneManager.LoadSceneAsync(3);
text.gameObject.SetActive(true);
PlayerPrefs.SetFloat("playerPosX", player.transform.position.x);
PlayerPrefs.SetFloat("playerPosY", player.transform.position.y);
PlayerPrefs.SetFloat("playerPosZ", player.transform.position.z);
}
}
}