Unity3D实现人物移动示例

一个是通过W、A、S、D来移动人物（示例一），另个是按屏幕上的按钮来移动人物（示例二）。很简单，只改了几行代码。

下面是“Assets”文件夹里面的资源。

示例一：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class E3_07keyboard : MonoBehaviour
{
//动画数组
private Object[] animUp;
private Object[] animDown;
private Object[] animLeft;
private Object[] animRight;
//地图贴图
private Texture2D map;
//当前人物动画
private Object[] tex;
//人物X坐标
private int x;
//人物Y坐标
private int y;
//帧序列
private int nowFram;
//动画帧的总数
private int mFrameCount;
//限制一秒多少帧
private float fps = 5;
//限制帧的时间
private float time = 0;
void Start()
{
 //得到帧动画中的所有图片资源
 animUp = Resources.LoadAll("up");
 animDown = Resources.LoadAll("down");
 animLeft = Resources.LoadAll("left");
 animRight = Resources.LoadAll("right");
 //得到地图资源
 map = (Texture2D)Resources.Load("map/map");
 //设置默认动画
 tex = animUp;
}

void OnGUI()
{
 //绘制贴图
 GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), map, ScaleMode.StretchToFill, true, 0);

//绘制帧动画
 DrawAnimation(tex, new Rect(x, y, 32, 48));

//点击按钮移动人物
 if (Input.GetKey(KeyCode.W))
 {
  y -= 2;
  tex = animUp;
 }
 if (Input.GetKey(KeyCode.S))
 {
  y += 2;
  tex = animDown;
 }
 if (Input.GetKey(KeyCode.A))
 {
  x -= 2;
  tex = animLeft;
 }
 if (Input.GetKey(KeyCode.D))
 {
  x += 2;
  tex = animRight;
 }
}

void DrawAnimation(Object[] tex, Rect rect)
{
 //绘制当前帧
 GUI.DrawTexture(rect, (Texture)tex[nowFram], ScaleMode.StretchToFill, true, 0);
 //计算限制帧时间
 time += Time.deltaTime;
 //超过限制帧则切换图片
 if (time >= 1.0 / fps)
 {
  //帧序列切换
  nowFram++;
  //限制帧清空
  time = 0;
  //超过帧动画总数从第0帧开始
  if (nowFram >= tex.Length)
  {
   nowFram = 0;
  }
 }
}
}

示例二

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class E3_07button : MonoBehaviour
{
//动画数组
private Object[] animUp;
private Object[] animDown;
private Object[] animLeft;
private Object[] animRight;
//地图贴图
private Texture2D map;
//当前人物动画
private Object[] tex;
//人物X坐标
private int x;
//人物Y坐标
private int y;
//帧序列
private int nowFram;
//动画帧的总数
private int mFrameCount;
//限制一秒多少帧
private float fps = 5;
//限制帧的时间
private float time = 0;
void Start()
{
 //得到帧动画中的所有图片资源
 animUp = Resources.LoadAll("up");
 animDown = Resources.LoadAll("down");
 animLeft = Resources.LoadAll("left");
 animRight = Resources.LoadAll("right");
 //得到地图资源
 map = (Texture2D)Resources.Load("map/map");
 //设置默认动画
 tex = animUp;
}

void OnGUI()
{
 //绘制贴图
 GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), map, ScaleMode.StretchToFill, true, 0);

//绘制帧动画
 DrawAnimation(tex, new Rect(x, y, 32, 48));

//点击按钮移动人物
 if (GUILayout.RepeatButton("向上"))
 {
  y -= 2;
  tex = animUp;
 }
 if (GUILayout.RepeatButton("向下"))
 {
  y += 2;
  tex = animDown;
 }
 if (GUILayout.RepeatButton("向左"))
 {
  x -= 2;
  tex = animLeft;
 }
 if (GUILayout.RepeatButton("向右"))
 {
  x += 2;
  tex = animRight;
 }
}

void DrawAnimation(Object[] tex, Rect rect)
{
 //绘制当前帧
 GUI.DrawTexture(rect, (Texture)tex[nowFram], ScaleMode.StretchToFill, true, 0);
 //计算限制帧时间
 time += Time.deltaTime;
 //超过限制帧则切换图片
 if (time >= 1.0 / fps)
 {
  //帧序列切换
  nowFram++;
  //限制帧清空
  time = 0;
  //超过帧动画总数从第0帧开始
  if (nowFram >= tex.Length)
  {
   nowFram = 0;
  }
 }
}
}

来源：https://blog.csdn.net/qq_39588003/article/details/98651857