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;
   }
  }
 }
}

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