打算这周都要搞（gao）事（shi）情（qing），所以呢，让我们先将游戏的基本模块做出来吧~
今天来做一下通用的文本显示。
文本提示
所谓文本提示，就是在屏幕上的某个位置，显示一段文字，给予玩家提示。
在Unity里文本还分为3dText和UGUI的Text。
功能
在这里，我们设置这样几个功能：
横幅显示提醒显示跟随式（3d世界）浮动式（3d世界）
横幅显示
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class AutoTextSize : MonoBehaviour {
[SerializeField]
float width =
1.0f;
[SerializeField]
float height =
1.5f;
[SerializeField]
int lineNumber =
10;
void Start () {
changeSize();
}
public void changeSize() {
string t =
this.GetComponent<Text>().text;
int length = t.Length;
int high = t.Length / lineNumber +
1;
float w;
float h;
w = Mathf.Min(length, lineNumber) * width;
h = high * height;
Vector2 vec =
new Vector2(w, h);
this.GetComponent<RectTransform>().sizeDelta = vec;
}
}
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
[RequireComponent(
typeof(RectTransform),
typeof(AutoTextSize))]
public class NoticeOfMove : MonoBehaviour {
Text text;
RectTransform rectTransform;
[SerializeField]
float speed =
500f;
[SerializeField]
float dist =
945f;
ArrayList notice;
Vector3 start;
Vector3 now;
float nowDist =
100000f;
static NoticeOfMove ins;
void Start () {
text =
this.GetComponentInChildren<Text>();
rectTransform = text.GetComponent<RectTransform>();
start = rectTransform.position;
now = start;
notice =
new ArrayList();
gameObject.SetActive(
false);
ins =
this;
}
public static NoticeOfMove
getInstance() {
return ins;
}
public void addNotice(
string str) {
notice.Add(str);
gameObject.SetActive(
true);
}
public void addNotice(
string str,
float speed) {
notice.Add(str);
this.speed = speed;
gameObject.SetActive(
true);
}
private void setText(
string str) {
gameObject.SetActive(
true);
text.text = str;
nowDist =
0;
}
public void setDist(
float dist) {
this.dist = dist;
}
void FixedUpdate() {
if (nowDist >= dist) {
rectTransform.position = start;
if (notice.ToArray().Length !=
0) {
setText(notice.ToArray()[
0].ToString());
notice.RemoveAt(
0);
}
else {
gameObject.SetActive(
false);
}
}
else {
now.x = start.x + nowDist;
nowDist += speed * Time.fixedDeltaTime;
rectTransform.position = now;
}
}
}
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
[RequireComponent(
typeof(Canvas))]
public class TextControl : MonoBehaviour {
Canvas canvas;
int width;
int height;
[SerializeField]
NoticeOfMove notice;
void Awake () {
canvas =
this.GetComponent<Canvas>();
width = Screen.width;
height = Screen.height;
if (notice ==
null) {
Debug.LogError(
"未指定Notice");
}
notice.setDist(width *
1.25f);
}
public void addNotice(
string str) {
notice.addNotice(str);
}
void Update () {
}
}
效果(注意，这里是移动的)
提醒显示
using UnityEngine;
using System.Collections;
[RequireComponent(
typeof(RectTransform))]
public class AutoBeSmall : MonoBehaviour {
RectTransform rec;
float nowScale =
0.15f;
bool flag =
true;
bool isStart =
false;
void Start () {
isStart =
true;
rec =
this.GetComponent<RectTransform>();
}
void FixedUpdate () {
if (nowScale <=
1.5f && flag) {
rec.localScale =
new Vector3(nowScale, nowScale, nowScale);
nowScale *=
1.05f;
}
else if (flag){
flag =
false;
rec.localScale = Vector3.one;
}
else if (nowScale >=
0.5f && !flag) {
rec.localScale =
new Vector3(nowScale, nowScale, nowScale);
nowScale *=
0.95f;
}
else if (!flag) {
this.gameObject.SetActive(
false);
}
}
public void setScale(
float scale) {
if (isStart) {
this.gameObject.SetActive(
true);
nowScale = scale;
rec.localScale =
new Vector3(nowScale, nowScale, nowScale);
flag =
true;
}
}
}
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
[RequireComponent(
typeof(Canvas))]
public class TextControl : MonoBehaviour {
[SerializeField]
AutoBeSmall error;
Text errorText;
void Awake () {
if (error ==
null) {
Debug.LogError(
"未指定Error");
}
errorText = error.GetComponent<Text>();
if (errorText ==
null) {
Debug.LogError(
"Error指定错误，未找到Text脚本");
}
}
public void setError(
string str) {
error.setScale(
2.5f);
errorText.text = str;
}
}
3d世界的Text
using UnityEngine;
using System.Collections;
public class AutoDestroy : MonoBehaviour {
float time;
[SerializeField, Range(
0.25f,
1.5f)]
float autoDestroyTime =
1.0f;
public void setMaxTime(
float t) {
autoDestroyTime = t;
}
void FixedUpdate () {
time += Time.fixedDeltaTime;
if (time >= autoDestroyTime) {
Destroy(
this.gameObject);
}
}
}
using UnityEngine;
using System.Collections;
public class AutoFlow : MonoBehaviour {
private GameObject flow;
private Vector3 diff = Vector3.zero;
public void setFlowAndDiff(GameObject o, Vector3 pos) {
flow = o;
diff = pos;
}
void FixedUpdate () {
Vector3 pos = flow.transform.position;
pos += diff;
this.transform.position = pos;
}
}
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class TextControl : MonoBehaviour {
[SerializeField]
TextMesh textOf3D;
void Awake () {
if (textOf3D ==
null) {
Debug.LogError(
"未指定textOf3D(预设体)");
}
}
public void set3dText(
string str, Vector3 pos) {
TextMesh t = (TextMesh)Instantiate(textOf3D, pos, Quaternion.identity);
t.transform.SetParent(canvas.transform);
t.text = str;
}
public void set3dText(
string str, GameObject obj, Vector3 diff) {
TextMesh t = (TextMesh)Instantiate(textOf3D, obj.transform.position, Quaternion.identity);
t.transform.SetParent(canvas.transform);
t.text = str;
Destroy(t.gameObject.GetComponent<AutoDestroy>());
t.gameObject.AddComponent<AutoFlow>().setFlowAndDiff(obj, diff);
}
}
测试用例
textControl
.addNotice(
"啦啦啦啦啦绿绿绿绿绿绿绿绿绿绿绿绿绿绿绿绿绿绿")
textControl
.setError(
"冲车冲车错")
textControl
.set3dText(
"Body-(Lv.1)", GameObject
.Find(
"Body"), Vector3
.up *
2)
