1.血条缓慢变淡
我们都知道，当敌人过多的时候，血条重叠在一起会给人在视觉上造成很大的干扰，也不利于打击感。所以，有必要建立血条缓慢变透明的脚本。
主要思路还是判断延迟血条与真实血条重合时，通过协程的间隔来控制血条的阿尔法透明值。让血条变淡。
下面是player子物体HP脚本。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class HPControl : MonoBehaviour
{
public float delHpSpeed = 1;//延迟血条减少速度
public float delHpTime = 1;//延时血条减少时间间隔
public float AlpHpTime = 1;//延时血条变淡速度
private CharacterPanel character ;//角色面板
private Transform hpBox;//血条图片
private Transform delhpBox;//延迟血条图片
private float delHPtime = 1;
private float AlpHptime = 1;
// Start is called before the first frame update
void Start()
{
character = transform.GetComponentInParent<CharacterPanel>();
hpBox = transform.GetChild(1);//0-HPmaxBox 1-hpBox 2-delhpBox
delhpBox = transform.GetChild(2);
}
// Update is called once per frame
void FixedUpdate()
{
check();
}
//检查血量变化控制血条
private void check() {
float x = character.Hp / character.Hpmax;
hpBox.localScale = new Vector3(x, 1, 1);
if (Mathf.Abs(delhpBox.localScale.x )> x)
{//血条显示
Debug.Log(1);
for (int i = 0; i < transform.childCount; i++)
{
transform.GetChild(i).GetComponent<SpriteRenderer>().color = new Color(transform.GetChild(i).GetComponent<SpriteRenderer>().color.r, transform.GetChild(i).GetComponent<SpriteRenderer>().color.g, transform.GetChild(i).GetComponent<SpriteRenderer>().color.b, 1);
Debug.Log(transform.GetChild(i).GetComponent<SpriteRenderer>().color.a);
}
}
if ((Mathf.Abs(delhpBox.localScale.x )> x)&& delHPtime == 1)//延迟血条与血条有数差
{
//延迟血条开启协程
StartCoroutine(delHP(x));
delHPtime = 0;
}
//没有数差，且透明度不为0 协程血条变淡
if (hpBox.GetComponent<SpriteRenderer>().color.a > 0&& AlpHptime==1)
{
StartCoroutine(AlpHp());
AlpHptime = 0;
}
}
IEnumerator delHP(float x)
{
yield return new WaitForSeconds(0.7f);//起初停顿时间
while (Mathf.Abs(delhpBox.localScale.x )>= x)//直到延迟血条完成
{
yield return new WaitForSeconds(0.005f* delHpTime);//间隔0.005*delHpTime秒
delhpBox.localScale =new Vector3(delhpBox.localScale.x-0.001f* delHpSpeed, 1, 1);
}
delHPtime = 1;
}
IEnumerator AlpHp()
{
while (hpBox.GetComponent<SpriteRenderer>().color.a > 0)
{
yield return new WaitForSeconds(0.2f * delHpTime);//等待0.2*delHpTime秒
for (int i = 0; i < transform.childCount; i++)
{ transform.GetChild(i).GetComponent<SpriteRenderer>().color = new Color(transform.GetChild(i).GetComponent<SpriteRenderer>().color.r, transform.GetChild(i).GetComponent<SpriteRenderer>().color.g, transform.GetChild(i).GetComponent<SpriteRenderer>().color.b, transform.GetChild(i).GetComponent<SpriteRenderer>().color.a - 0.15f*AlpHpTime);
}
}
AlpHptime = 1;
}
}2.伤害数值显示
为角色下面新建一个画布，然后在画布下面在新建txt文本。注意打开。画布的这模式为世界空间这样他就可以跟随角色进行移动。控制画布的scale调整好文本框和画布的位置。
注意调整好角色物体下各个子物体的图层顺序，不然可能会遮挡（这就是我准备下一课做背景的原因，早做背景不好调试）
为了使得游戏的扩展性强，我们为单独画布做一个脚本。用来控制角色画布上所有的UI。
其中角色面板函数
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class CharacterPanel : MonoBehaviour
{
public float Hpmax = 100;//最大生命
public float Hp = 100;//生命
public float Atk = 10;//攻击力
public float AtkRan = 1;//攻击浮动
public float Def = 10;//防御力
private Transform Canvas;//获取角色个人UI面板
// Start is called before the first frame update
void Start()
{
Canvas = transform.Find("Canvas");
}
// Update is called once per frame
void FixedUpdate()
{
check();
}
//标准化检查
private void check()
{
if (Hp > Hpmax) Hp = Hpmax;//血量不超过上限
if (Hp < 0) Hp = 0;//血量不超过下限
}
public void hurt(float atk)
{
float hurtnum= (20 * atk / (20 + Def)) + Random.Range(-AtkRan, AtkRan);
Canvas.GetComponent<CharaCanvas>().ShowHurtText(hurtnum);
Hp -= hurtnum;
}
}其中CharaCanvas角色画布脚本为Canvas的
通过协程使得间隔几秒来控制字体大小，位置，颜色变化
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class HPControl : MonoBehaviour
{
public float delHpSpeed = 1;//延迟血条减少速度
public float delHpTime = 1;//延时血条减少时间间隔
public float AlpHpTime = 1;//延时血条变淡速度
private CharacterPanel character ;//角色面板
private Transform hpBox;//血条图片
private Transform delhpBox;//延迟血条图片
private float delHPtime = 1;
private float AlpHptime = 1;
// Start is called before the first frame update
void Start()
{
character = transform.GetComponentInParent<CharacterPanel>();
hpBox = transform.GetChild(1);//0-HPmaxBox 1-hpBox 2-delhpBox
delhpBox = transform.GetChild(2);
}
// Update is called once per frame
void FixedUpdate()
{
check();
}
//检查血量变化控制血条
private void check() {
float x = character.Hp / character.Hpmax;
hpBox.localScale = new Vector3(x, 1, 1);
if (delhpBox.localScale.x > Mathf.Abs(x))
{//血条显示
for (int i = 0; i < transform.childCount; i++)
{
transform.GetChild(i).GetComponent<SpriteRenderer>().color = new Color(transform.GetChild(i).GetComponent<SpriteRenderer>().color.r, transform.GetChild(i).GetComponent<SpriteRenderer>().color.g, transform.GetChild(i).GetComponent<SpriteRenderer>().color.b, 1);
Debug.Log(transform.GetChild(i).GetComponent<SpriteRenderer>().color.a);
}
}
if ((delhpBox.localScale.x > Mathf.Abs(x))&& delHPtime == 1)//延迟血条与血条有数差
{
//延迟血条开启协程
StartCoroutine(delHP(x));
delHPtime = 0;
}
//没有数差，且透明度不为0 协程血条变淡
if (hpBox.GetComponent<SpriteRenderer>().color.a > 0&& AlpHptime==1)
{
StartCoroutine(AlpHp());
AlpHptime = 0;
}
}
IEnumerator delHP(float x)
{
yield return new WaitForSeconds(0.7f);//起初停顿时间
while (delhpBox.localScale.x >= Mathf.Abs(x))//直到延迟血条完成
{
yield return new WaitForSeconds(0.005f* delHpTime);//间隔0.005*delHpTime秒
delhpBox.localScale =new Vector3(delhpBox.localScale.x-0.001f* delHpSpeed, 1, 1);
}
delHPtime = 1;
}
IEnumerator AlpHp()
{
while (hpBox.GetComponent<SpriteRenderer>().color.a > 0)
{
yield return new WaitForSeconds(0.2f * delHpTime);//等待0.2*delHpTime秒
for (int i = 0; i < transform.childCount; i++)
{ transform.GetChild(i).GetComponent<SpriteRenderer>().color = new Color(transform.GetChild(i).GetComponent<SpriteRenderer>().color.r, transform.GetChild(i).GetComponent<SpriteRenderer>().color.g, transform.GetChild(i).GetComponent<SpriteRenderer>().color.b, transform.GetChild(i).GetComponent<SpriteRenderer>().color.a - 0.15f*AlpHpTime);
}
}
AlpHptime = 1;
}
}注意事项：将text文本调的足够大，不然当字体大小超过文本框大小的时候，字体不显示。你也可以设置好看字体，居中显示，允许横向溢出。
然后将角色面板物体复制给敌人物体，并更新预制体。
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