会议分享：用React+lingo3d开发一款游戏

一. 基础准备

开发语言选择react+lingo3d
模型，动画，音效
- 模型：Blender软件，模型素材网站：https://sketchfab.com/feed
- 动画：https://www.mixamo.com/#/
- 音效：https://sc.chinaz.com/tag_yinxiao/cf.html
介绍Blender软件(创建物体，物体颜色（材质属性上），点光，摄像机)
lingo3d
- 相机（第一人称相机，第三人称相机，轨道相机）轨道相机可以触摸屏或者鼠标点击交互
- 　
新建一个demo开发测试

使用vite创建 yarn create vite
第三方依赖：lingo3d-react @1.2.77
查找天空背景：google key words: equirectangular sky / skybox background

 <World>
      <OrbitCamera active enableZoom autoRotate />
      <Model src="house2.glb"></Model>
    </World>　　、

引入人物模型，https://sketchfab.com/feed，优点：全球最全的3的模型网站，并且所有的模型网站都是可以直接加载到网站上面展示出来的

demo1

- ```
//step1
    <World>
      <Cube width={9999} depth={9999} y={-100} color={'gray'}/>
      <Model/>
    </World>

//step2
```
  function App() {
  
  const [position, setPosition] = useState({x:0,y:0,z:0})
  
  return (
  
  <World>
  
  <Cube
  
  width={9999}
  
  depth={9999}
  
  y={-100}
  
  color='gray'
  
  onClick={
  
  (e)=>{
  
  setPosition({x:e.point.x,y:e.point.y,z:e.point.z})}
  
  }
  
  />
  
  <Model
  
  src='Idle.fbx'
  
  />
  
  <Cube
  
  color="orange"
  
  scale={0.2}
  
  x={position.x}
  
  y={position.y}
  
  z={position.z}
  
  />
  
  <OrbitCamera active />
  
  </World>
  
  )
  
  }

demo2
- - 　　
```
//step1 添加地图 第三人称相机 人物w移动
function App() {
  const modelRef = useRef()

  return (
    <World>
      <Model
        src="map/cybercity_2099_v2/scene.gltf"
        physics="map"
        scale={120}
      />
      <ThirdPersonCamera active mouseControl>
        <Model 
          src='Idle.fbx'
          physics="character"
          ref={modelRef}
          intersectIDs={['orangeBox']}
          onIntersect={()=>{
            console.log(1)
            setMove(false)
          }}
          animations={{idle:'Idle.fbx',running:'Running.fbx'}}
          animation={"idle"}
        />
      </ThirdPersonCamera>
      <Keyboard
         onKeyPress={key => {
          if (key === "w") {
            modelRef.current?.moveForward(-10)
          } else if (key === "Space"){
            modelRef.current!.velocity.y = 5
          } else if (key === "f"){
            modelRef.current!.velocity.y = 5
          }
        }}
      />

      <Skybox texture='sky.jpg'/>
    </World>
  )
}

//step2  添加状态机 改变动作  @xstate/react  和 xstate  vscode插件xState 可视化，
//stateMachines/postMachine
```
    import { createMachine } from "xstate";
    
    export default createMachine({
    
    states: {
    
    "idle": {
    
    on: {
    
    KEY_W_DOWN: "running",
    
    KEY_SPACE_DOWN: "jumping",
    
    KEY_F_DOWN: "flying"
    
    }
    
    },
    
    "running": {
    
    on: {
    
    KEY_W_UP: "idle",
    
    KEY_SPACE_DOWN: "jumping",
    
    KEY_F_DOWN: "flying"
    
    }
    
    },
    
    "jumping": {
    
    on: {
    
    LANDED: "idle",
    
    KEY_F_DOWN: "flying"
    
    },
    
    entry: "enterJumping"
    
    },
    
    "flying": {
    
    on: {
    
    LANDED: "idle"
    
    },
    
    entry: "enterFlying"
    
    }
    
    },
    
    initial: "idle"
    
    })
```
 
```
```
//app,tsx
　　const [pose, sendPose] = useMachine(poseMachine)
```
    <Model
    
    physics="character"
    
    src="Idle.fbx"
    
    animations={{
    
    idle: 'Idle.fbx',
    
    running: 'Running.fbx',
    
    jumping: "Jumping.fbx",
    
    flying: "Flying.fbx",
    
    }}
    
    animation={pose.value as any}
    
    />
    
    <Keyboard
    
    onKeyPress={key => {
    
    if (key === "w") {
    
    sendPose("KEY_W_DOWN")
    
    } else if (key === "Space"){
    
    sendPose("KEY_SPACE_DOWN")
    
    } else if (key === "f"){
    
    sendPose("KEY_F_DOWN")
    
    }
    
    }}
    
    onKeyUp={key => {
    
    if (key === "w")
    
    sendPose("KEY_W_UP")
    
    }}
    
    />
    //添加修改app.tsx 使用useMef() bot.onLoop函数每秒执行60次
    import { useMachine } from '@xstate/react'
    
    const modelRef = useMef()
    
    const [pose, sendPose] = useMachine(poseMachine, {
    
    actions: {
    
    enterJumping: () => {
    
    const bot = modelRef.current
    
    if (bot === null) return
    
    bot.velocity.y = 10
    
    bot.onLoop = () => {
    
    if (bot.velocity.y === 0) {
    
    bot.onLoop = undefined
    
    sendPose("LANDED")
    
    }
    
    }
    
    },
    
    enterFlying: () => {
    
    const bot = modelRef.current
    
    if (bot === null) return
    
    bot.onLoop = () => {
    
    if (bot.velocity.y === 0) {
    
    bot.onLoop = undefined
    
    sendPose("LANDED")
    
    }
    
    }
    
    }
    
    }
    
    })
```
 
```
    <Model
    
    physics="character"
    
    ref={modelRef}
    
    src="Idle.fbx"
    
    animations={{
    
    idle: 'Idle.fbx',
    
    running: 'Running.fbx',
    
    jumping: "Jumping.fbx",
    
    flying: "Flying.fbx",
    
    }}
    
    animation={pose.value as any}
    
    />
    <Keyboard
    
    onKeyPress={key => {
    
    if (key === "w") {
    
    sendPose("KEY_W_DOWN")
    
    modelRef.current?.moveForward(-10)
    
    } else if (key === "Space"){
    
    sendPose("KEY_SPACE_DOWN")
    
    } else if (key === "f"){
    
    sendPose("KEY_F_DOWN")
    
    modelRef.current!.velocity.y = 2
    
    }
    
    }}
    
    onKeyUp={key => {
    
    if (key === "w")
    
    sendPose("KEY_W_UP")
    
    }}
    
    />
demo3 添加准星+添加汽车
```
//添加汽车
     <Model
        ref={carRef}
        physics="character"
        id="car"
        src="pixel_car/scene.gltf"
        scale={2}
        x={-2319.68}
        y={-3855.55}
        z={-10600.00}         
     />

//添加准星
<Reticle color="white" variant={7} />

第三人称绑定
```
const xSpring = useSpring({ to: camX, bounce: 0 })

const ySpring = useSpring({ to: camY, bounce: 0 })

const zSpring = useSpring({ to: camZ, bounce: 0 })
```
//添加显示
```
<Model

ref={carRef}

physics="character"

id="car"

src="pixel_car/scene.gltf"

scale={2}

x={-2319.68}

y={-3855.55}

z={-10600.00}

>

<Find

name="GLTF_SceneRootNode"

>

<HTML>

<div style={{ color: "white" }}>

<div style={{ fontWeight: "bold", fontSize: 20 }} duration={1000}>

一款霸气的汽车

</div>

<div>

按G上下车

</div>

</div>

</HTML>

</Find>

</Model>

二. 正式开发

demo1 鼠标点击控制人物移动

import { useState,useRef } from 'react'
import './App.css'
import { World,Cube,Model, OrbitCamera, Skybox, useLoop } from 'lingo3d-react'

function App() {
  const [position, setPosition] = useState({x:0,y:0,z:0})
  const [move, setMove] = useState(false)
  const modelRef = useRef()

  useLoop(()=>{
    const model = modelRef.current
    model.moveForward(-5)
  },move)

  return (
    <World>
      <Cube
        width={9999}
        depth={9999}
        y={-200}
        onClick={
          (e)=>{
            setMove(true);
            setPosition({x:e.point.x, y:0, z:e.point.z})
            const model = modelRef.current
            model.lookAt(e.point)
          }
        }
        />
      <Model
        ref={modelRef}
        src="Idle.fbx"
        animations={{idle:'Idle.fbx',running:'Running.fbx'}}
        animation={move?"running" : "idle"}
        intersectIDs={['orange']}
        onIntersect={()=>{ setMove(false)}}
      />
      <OrbitCamera active />
      <Cube scale={0.5} id="orange" color="orange" x={position.x} y={position.y} z={position.z}/>

      <Skybox texture="sky.jpg"/>
    </World>
  )
}

export default App

demo2 键盘+状态管理机（@xstate/react 和 xstate），键盘控制人物移动

import { useMachine } from '@xstate/react'
import {  useRef } from 'react'
import './App.css'
import poseMachine from './stateMachines/postMachine'
import { World, Cube, Model, OrbitCamera, Skybox, useLoop, Editor, FirstPersonCamera, ThirdPersonCamera, Keyboard } from 'lingo3d-react'

function App() {
  const botRef = useRef()

  const [pose, sendPose] = useMachine(poseMachine, {
    actions: {
      enterJumping: () => {
        const bot = botRef.current
        if (bot === null) return

        bot.velocity.y = 10

        bot.onLoop = () => {
          if (bot.velocity.y === 0) {
            bot.onLoop = undefined
            sendPose("LANDED")
          }
        }
      },
      enterFlying: () => {
        const bot = botRef.current
        if (bot === null) return

        bot.onLoop = () => {
          if (bot.velocity.y === 0) {
            bot.onLoop = undefined
            sendPose("LANDED")
          }
        }
      }
    }
  })

  return (
    <World >
      <Model src="map/cybercity_2099_v2/scene.gltf" scale={120} physics="map" innerRotationY={180} />
      <ThirdPersonCamera active mouseControl>
        <Model
          physics="character"
          ref={botRef}
          src="Idle.fbx"
          animations={{
            idle: 'Idle.fbx',
            running: 'Running.fbx',
            jumping: "Jumping.fbx",
            flying: "Flying.fbx",
          }}
          animation={pose.value as any}
        />
      </ThirdPersonCamera >


      <Skybox texture="sky.jpg" />
      {/* <Editor/> */}
      <Keyboard
        onKeyPress={key => {
          if (key === "w") {
            sendPose("KEY_W_DOWN")
            botRef.current?.moveForward(-10)
          } else if (key === "Space"){
            sendPose("KEY_SPACE_DOWN")
          } else if (key === "f"){
            sendPose("KEY_F_DOWN")
            botRef.current.velocity.y = 2
          }
        }}
        onKeyUp={key => {
          if (key === "w")
            sendPose("KEY_W_UP")
        }}
      />
    </World>
  )
}

export default App

状态机：

import { createMachine } from "xstate";

export default createMachine({
    states: {
        "idle": {
            on: {
                KEY_W_DOWN: "running",
                KEY_SPACE_DOWN: "jumping",
                KEY_F_DOWN: "flying"
            }
        },
        "running": {
            on: {
                KEY_W_UP: "idle",
                KEY_SPACE_DOWN: "jumping",
                KEY_F_DOWN: "flying"
            }
        },
        "jumping": {
            on: {
                LANDED: "idle",
                KEY_F_DOWN: "flying"
            },
            entry: "enterJumping"
        },
        "flying": {
            on: {
                LANDED: "idle"
            },
            entry: "enterFlying"
        }
    },
    initial: "idle"
})

demo3 瞄准器+制作汽车彩蛋+场景优化(@lincode/react-anim-text) useSpring(弹簧--)

import { useMachine } from '@xstate/react'
import { useRef, useState } from 'react'
import './App.css'
import poseMachine from './stateMachines/postMachine'
import { World, Cube, HTML, Model, OrbitCamera, Skybox, useLoop, Editor, FirstPersonCamera, ThirdPersonCamera, Keyboard, Reticle, useSpring, Find } from 'lingo3d-react'
import AnimText from "@lincode/react-anim-text"

function App() {
  const botRef = useRef()
  const carRef = useRef()
  const [mouseOver, setMouseOver] = useState(false)
  const [driveCar, setDriveCar] = useState(false)
  const [intersectCar, setIntersectCar] = useState(false)


  const [pose, sendPose] = useMachine(poseMachine, {
    actions: {
      enterJumping: () => {
        const bot = botRef.current
        if (bot === null) return

        bot.velocity.y = 10

        bot.onLoop = () => {
          if (bot.velocity.y === 0) {
            bot.onLoop = undefined
            sendPose("LANDED")
          }
        }
      },
      enterFlying: () => {
        const bot = botRef.current
        if (bot === null) return

        bot.onLoop = () => {
          if (bot.velocity.y === 0) {
            bot.onLoop = undefined
            sendPose("LANDED")
          }
        }
      }
    }
  })

  const camX = mouseOver ? 25 : 0
  const camY = mouseOver ? 50 : 50
  const camZ = mouseOver ? 50 : 200

  const xSpring = useSpring({ to: camX, bounce: 0 })
  const ySpring = useSpring({ to: camY, bounce: 0 })
  const zSpring = useSpring({ to: camZ, bounce: 0 })

  return (
    <>
      <World >
        <Model src="map/cybercity_2099_v2/scene.gltf" scale={120} physics="map" innerRotationY={180} >
          {/* <Find
           name="Hovercars_Holograms_0"
           outline={mouseOver}
           onMouseOver={() => setMouseOver(true)}
           onMouseOut={() => setMouseOver(false)}
          >
            {mouseOver && (
              <HTML>
                <div style={{ color: "white" }}>
                  <AnimText style={{ fontWeight: "bold", fontSize: 20 }} duration={1000}>
                    可乐汉堡店铺
                  </AnimText>
                  <AnimText duration={1000}>
                    hamburger coca-cola
                  </AnimText>
                </div>
              </HTML>
            )}
          </Find> */}
        </Model>
        <ThirdPersonCamera
          active={!driveCar}
          mouseControl
          innerY={ySpring}
          innerZ={zSpring}
          innerX={xSpring}
        >
          <Model
            physics="character"
            ref={botRef}
            src="Idle.fbx"
            animations={{
              idle: 'Idle.fbx',
              running: 'Running.fbx',
              jumping: "Jumping.fbx",
              flying: "Flying.fbx",
            }}
            animation={pose.value as any}
            intersectIDs={["car"]}
            onIntersect={() => setIntersectCar(true)}
            onIntersectOut={() => setIntersectCar(false)}
          />
        </ThirdPersonCamera >
        <ThirdPersonCamera
          active={driveCar}
          mouseControl
          innerY={ySpring}
          innerZ={zSpring}
          innerX={xSpring}
        >
          <Model
            ref={carRef}
            physics="character"
            id="car"
            src="pixel_car/scene.gltf"
            scale={2}
            x={-2319.68}
            y={-3855.55}
            z={-10600.00}
          >
            <Find
              name="GLTF_SceneRootNode"
              outline={!driveCar && mouseOver}
              onMouseOver={() => setMouseOver(true)}
              onMouseOut={() => setMouseOver(false)}
            >
              {!driveCar && mouseOver && (
                <HTML>
                  <div style={{ color: "white" }}>
                    <AnimText style={{ fontWeight: "bold", fontSize: 20 }} duration={1000}>
                      一款霸气的汽车
                    </AnimText>
                    <AnimText duration={1000}>
                      按G上下车
                    </AnimText>
                  </div>
                </HTML>
              )}
            </Find>
          </Model>
        </ThirdPersonCamera >
        <Skybox texture="sky.jpg" />
        {/* <Editor/> */}
        <Keyboard
          onKeyPress={key => {
            console.log(key)
            if (driveCar) {
              if (key === "w") {
                carRef.current?.moveForward(-20)
              }
            } else {
              if (key === "w") {
                sendPose("KEY_W_DOWN")
                botRef.current?.moveForward(-10)
              } else if (key === "Space") {
                sendPose("KEY_SPACE_DOWN")
              } else if (key === "f") {
                sendPose("KEY_F_DOWN")
                botRef.current.velocity.y = 2
              }
            }

          }}
          onKeyUp={key => {
            if (key === "w") {
              sendPose("KEY_W_UP")
            } else if (key === "g") {
              if (driveCar) {
                botRef.current!.x = carRef.current?.x
                botRef.current!.y = carRef.current?.y
                botRef.current!.z = carRef.current?.z
                setDriveCar(false)
              } else if (intersectCar) {
                setDriveCar(true)
              }
            }
          }}
        />
        {/* <Editor/> */}

      </World>
      {!driveCar && <Reticle color="white" variant={7} />}
    </>
  )
}

export default App

🔸3D模型下载网站：https://sketchfab.com/feed
🔸3D人物动作绑定：www.mixamo.com
🔸3D角色生产工具：https://readyplayer.me/
🔸模型压缩网站：gltf.report
🔸查找天空背景：google key words: equirectangular sky / skybox background
🔸材质贴图素材：https://www.textures.com
🔸hdr素材库(环境贴图): https://polyhaven.com
🔸二次元风3D角色生产软件VRoid Studio: https://vroid.com/en/studio

posted on 2022-05-16 21:26 康心志阅读(539) 评论(0) 编辑收藏举报

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会议分享：用React+lingo3d开发一款游戏

一. 基础准备

二. 正式开发

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