vue3+threejs新手从零开发卡牌游戏（十七）：模拟对方手牌上场

写一个模拟对方手牌上场的事件，其中注意上场后卡牌需要翻转下，同时调整攻击力文字位置，主要代码如下：

utils/common.ts：


import { nextTick } from 'vue';
import * as THREE from 'three';
import * as TWEEN from '@tweenjs/tween.js'
import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';

// 坐标归一化
const transPos = (x: any, y: any) => {
  let pointer = new THREE.Vector2()
  
  pointer.x = ( x / window.innerWidth ) * 2 - 1;
  pointer.y = - ( y / window.innerHeight ) * 2 + 1;

  return pointer
}
export { transPos }

// 修改卡组
const editDeckCard = (group:any, mesh: any, type: any) => {
  return new Promise((resolve, reject) => {
    let text = group.children.find((v: any) => v.name === "卡组数量")
    let shadowText = group.children.find((v: any) => v.name === "卡组数量阴影")
    // console.log(22, group.children, commonStore.$state.p1Deck)
    if (type === "remove") { // 删除卡组中的卡牌
      let child = group.children.find((v: any) => v.name === mesh.name)
      if (child) {
        group.remove(child)
      }
    }
    group.remove(text)
    group.remove(shadowText)
    group.children.forEach((v: any, i: any) => {
      v.position.set(0, 0.005 * i, 0)
    })
    resolve(true)
  })
}
export { editDeckCard }

// 渲染卡组文字
const renderDeckText = (group: any, text: any, font: any, position: any) => {
  return new Promise((resolve, reject) => {
    const geometry = new TextGeometry( `${text}`, {
      font,
      size: 0.4,
      height: 0,
      curveSegments: 4,
      bevelEnabled: true,
      bevelThickness: 0,
      bevelSize: 0,
      bevelSegments: 0
    });
    geometry.center()
    const material = new THREE.MeshBasicMaterial({ 
      color: new THREE.Color("white"),
      alphaHash: true
    })
    const mesh = new THREE.Mesh( geometry, material ) ;
    mesh.position.set(position.x, position.y + 0.01, position.z)
    // mesh.position.set(0, 0.005 * commonStore.$state.p1Deck.length + 0.01, 0)
    mesh.rotateX(-90 * (Math.PI / 180)) // 弧度
    mesh.name = "卡组数量"
  
    // 阴影
    let shadowGeometry = geometry.clone()
    shadowGeometry.translate(0.02, 0.02, 0);
    let shadowMaterial = new THREE.MeshBasicMaterial({
      color: new THREE.Color("black"),
      alphaHash: true
    });
    let shadowMesh = new THREE.Mesh(shadowGeometry, shadowMaterial);
    shadowMesh.position.set(position.x, position.y, position.z)
    // shadowMesh.position.set(0, 0.005 * commonStore.$state.p1Deck.length, 0)
    shadowMesh.rotateX(-90 * (Math.PI / 180)) // 弧度
    shadowMesh.name = "卡组数量阴影"
  
    group.add(mesh)
    group.add(shadowMesh)

    resolve(true)
  })
}
export { renderDeckText }

// 渲染场上手牌文字
const renderSiteCardText = (handGroup: any, mesh: any, font: any) => {
  return new Promise((resolve, reject) => {
    let pos = mesh.position
    mesh.getWorldPosition(pos)
    const geometry = new TextGeometry( `ATK ${mesh.userData._ATK}`, {
      font,
      size: 0.2,
      height: 0,
      curveSegments: 12,
      bevelEnabled: false,
      bevelThickness: 0,
      bevelSize: 0,
      bevelSegments: 0
    });
    geometry.center()
    const material = new THREE.MeshBasicMaterial({ 
      // color: new THREE.Color("#00a2ff"),
      color: new THREE.Color("white"),
      // alphaHash: true
    })
    const textMesh = new THREE.Mesh( geometry, material ) ;
    if (handGroup.name === "p1_handGroup") {
      textMesh.position.z = pos.z - 0.1
    } else {
      textMesh.rotateY(180 * (Math.PI / 180)) // 弧度
      textMesh.position.z = pos.z + 0.1
    }
    textMesh.position.y = pos.y + 0.02
    textMesh.rotateX(-90 * (Math.PI / 180)) // 弧度
    textMesh.name = "攻击力"

    // // 阴影
    // let shadowGeometry = geometry.clone()
    // shadowGeometry.translate(0.01, 0.01, 0);
    // let shadowMaterial = new THREE.MeshBasicMaterial({
    //   color: new THREE.Color("#3f7b9d"),
    //   // alphaHash: true,
    //   side: THREE.BackSide 
    // });
    // let shadowMesh = new THREE.Mesh(shadowGeometry, shadowMaterial);
    // shadowMesh.position.y = pos.y + 0.01
    // shadowMesh.position.z = pos.z + 0.15
    // shadowMesh.rotateX(-90 * (Math.PI / 180)) // 弧度
    // // shadowMesh.scale.set(1.1, 1.1, 1.1)
    // shadowMesh.name = "攻击力阴影"
  
    mesh.add(textMesh)
    // mesh.add(shadowMesh)

    resolve(true)
  })
}
export { renderSiteCardText }

game/index.vue：

<template>
  <div ref="sceneRef" class="scene"></div>
  <!-- 玩家区 -->
  <Player ref="playerRef"/>
  <!-- 手牌 -->
  <Hand ref="handRef"/>
  <!-- 卡组 -->
  <Deck ref="deckRef"/>
  <!-- 战域 -->
  <Site ref="siteRef"/>
  <!-- 抽卡逻辑 -->
  <DrawCard ref="drawCardRef" :handRef="handRef"/>
  <!-- 对话框 -->
  <Dialog ref="dialogRef" @handToSite="handToSite" @onCancel="onCancel"/>
</template>

<script setup lang="ts">
import { reactive, ref, onMounted, onBeforeUnmount, watch, defineComponent, getCurrentInstance, nextTick } from 'vue'
import { OrbitControls } from 'three/addons/controls/OrbitControls.js'; // 轨道控制器
import { DragControls } from 'three/addons/controls/DragControls.js';
import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
import { GlitchPass } from 'three/addons/postprocessing/GlitchPass.js';
import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
import { GammaCorrectionShader } from 'three/examples/jsm/shaders/GammaCorrectionShader.js';
import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';
import { OutlinePass } from 'three/examples/jsm/postprocessing/OutlinePass.js';
import { FontLoader } from 'three/addons/loaders/FontLoader.js';
import { useCommonStore } from "@/stores/common.ts"
import { transPos, editDeckCard, renderDeckText, renderSiteCardText } from "@/utils/common.ts"
import { Card } from "./Card.ts"
import { CARD_DICT } from "@/utils/dict/card.ts"
import { p1TestDeck, p2TestDeck} from "@/utils/deck/test.ts"
import Hand from "./hand/index.vue"
import Deck from "./deck/index.vue"
import Site from "./site/index.vue"
import Player from "./player/index.vue"
import DrawCard from "@/components/DrawCard.vue"
import Dialog from "@/components/Dialog.vue"
import { resolve } from 'dns';

// 引入threejs变量
const {proxy} = getCurrentInstance()
const THREE = proxy['THREE']
const scene = proxy['scene']
const camera = proxy['camera']
const renderer = proxy['renderer']
const composer = proxy['composer']
const TWEEN = proxy['TWEEN']

// 后期处理
const renderPass = new RenderPass( scene, camera );
composer.addPass( renderPass );

// 
const raycaster = new THREE.Raycaster();
const pointer = new THREE.Vector2();

const commonStore = useCommonStore()


// 场景ref
const sceneRef = ref()
const playerRef = ref()
const siteRef = ref()
const handRef = ref()
const deckRef = ref()
const drawCardRef = ref()
const dialogRef = ref()

// 坐标轴辅助
const axesHelper = new THREE.AxesHelper(5);
// 创建轨道控制器
// const orbitControls = new OrbitControls( camera, renderer.domElement );
// 字体加载器
const fontLoader = new FontLoader();

onMounted(async () => {
  await initResource()
  initScene()
  initGame()

  // 鼠标按下
  window.addEventListener('touchstart', onMousedown)
  window.addEventListener('touchmove', onMousemove)
  // window.addEventListener('click', onMousedown)

  // 监听浏览器窗口变化进行场景自适应
  window.addEventListener('resize', onWindowResize, false);
})

// 资源加载
const initResource = () => {
  // 字体加载
  return new Promise((resolve, reject) => {
    // Microsoft YaHei_Regular
    // fonts/helvetiker_regular.typeface.json
    fontLoader.load('fonts/helvetiker_bold.typeface.json', (font: any) => {
      commonStore.loadFont(font)
      resolve(true)
    });
  })
}

// 初始化场景
const initScene = async () => {
  renderer.setSize( window.innerWidth, window.innerHeight );
  sceneRef.value.appendChild( renderer.domElement );
  scene.add(axesHelper)
  // addSceneBg()

  // camera.position.set( 5, 5, 5 );
  camera.position.set( 0, 6.5, 0 );
  camera.lookAt(0, 0, 0)
  // const glitchPass = new GlitchPass();
  // composer.addPass( glitchPass );

  // const outputPass = new OutputPass();
  // composer.addPass( outputPass );

  addPlane()

  animate();
}

// scene添加动态背景
const addSceneBg = () => {
  const vertices = [];

  for ( let i = 0; i < 5000; i ++ ) {
    const x = THREE.MathUtils.randFloatSpread( 1000 );
    const y = THREE.MathUtils.randFloatSpread( 1000 );
    const z = THREE.MathUtils.randFloatSpread( 1000 );
    vertices.push( x, y, z );
  }

  const particlesGeometry = new THREE.BufferGeometry();
  particlesGeometry.setAttribute( 'position', new THREE.Float32BufferAttribute( vertices, 3 ) );

  // 设置点材质
  const pointsMaterial = new THREE.PointsMaterial();
  // pointsMaterial.size = 0.9;
  pointsMaterial.color.set(new THREE.Color("#fff"));
  // 相机深度而衰减
  pointsMaterial.sizeAttenuation = true;

  const points = new THREE.Points(particlesGeometry, pointsMaterial);

  scene.add(points);

  // const texture = new THREE.TextureLoader().load( "textures/bg.jpg" );
  // // const geometry = new THREE.SphereGeometry( 1, 32, 16 );
  // const geometry = new THREE.CircleGeometry( 6, 32 );
  // const material = new THREE.MeshBasicMaterial({
  //   map: texture
  // });
  // const sphere = new THREE.Mesh( geometry, material );
  // sphere.name = "场景背景"
  // sphere.position.set(0, 0, 0)
  // sphere.rotateX(-90 * (Math.PI / 180)) // 弧度
  // scene.add( sphere );

  // texture.wrapS = THREE.RepeatWrapping;
  // texture.wrapT = THREE.RepeatWrapping;
  // scene.background = texture
}

// scene中添加plane几何体
const addPlane = () => {
  const geometry = new THREE.PlaneGeometry( 20, 20);
  const material = new THREE.MeshBasicMaterial( {
    color: new THREE.Color("gray"), 
    side: THREE.FrontSide, 
    alphaHash: true,
    // alphaTest: 0,
    opacity: 0
  } );
  const plane = new THREE.Mesh( geometry, material );
  plane.rotateX(-90 * (Math.PI / 180)) // 弧度
  plane.name = "地面"
  scene.add( plane );
}

// 用requestAnimationFrame进行渲染循环
// let bgMesh = scene.getObjectByName("场景背景")
// console.log(123, bgMesh)
const animate = () => {
  requestAnimationFrame( animate );
  TWEEN.update()
  // let bgMesh = scene.getObjectByName("场景背景")
  // if (bgMesh) {
  //   bgMesh.rotation.z += 0.0002
  // }
  // renderer.render( scene, camera );
  composer.render()
}

// 场景跟随浏览器窗口大小自适应
const onWindowResize = () => {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

// 初始化游戏
const initGame = async () => {
  // 初始化玩家
  initPlayer()
  // 初始化场地
  initSite()
  // 初始化卡组
  await initDeck()
  // 初始化手牌
  await initHand()
  // 绑定手牌事件
  onHandEvent()

  // 
  await p2DrawCardEvent(1)
  let p2_handGroup = scene.getObjectByName("p2_handGroup")
  let cards = p2_handGroup.children.filter((v: any) => v.userData.type === "怪兽")
  console.log(123, cards)
  p2HandToSite(cards[0])
}

// 初始化玩家
const initPlayer = () => {
  playerRef.value.init()
}

// 初始化场地
const initSite = () => {
  siteRef.value.init()
}

// 初始化卡组
const initDeck = () => {
  return new Promise((resolve, reject) => {
    let p1Deck: any = []
    let p2Deck: any = []
    // 洗牌
    p1TestDeck.sort(() => {
      return Math.random() - 0.5
    })
    p2TestDeck.sort(() => {
      return Math.random() - 0.5
    })
    p1TestDeck.forEach((v: any, i: any) => {
      let obj = CARD_DICT.find((b: any) => b.card_id === v)
      if (obj) {
        p1Deck.push({
          card_id: v,
          name: `${obj.name}_${i}`
        })
      }
    })
    p2TestDeck.forEach((v: any, i: any) => {
      let obj = CARD_DICT.find((b: any) => b.card_id === v)
      if (obj) {
        p2Deck.push({
          card_id: v,
          name: `${obj.name}_${i}`
        })
      }
    })
    // console.log("p1Deck", newDeck)
    commonStore.updateP1Deck(p1Deck)
    commonStore.updateP2Deck(p2Deck)
    
    nextTick(() => {
      handRef.value.init()
      deckRef.value.init()
      resolve(true)
    })
  })
}

// 初始化手牌
const initHand = () => {
  let p1 = new Promise((resolve, reject) => {
    let cardNumber = 4
    let _number = 0
    let p1Deck = JSON.parse(JSON.stringify(commonStore.$state.p1Deck))
    let deckGroup = scene.getObjectByName("p1_deckGroup")
    let position = new THREE.Vector3(0, 0.005 * p1Deck.length, 0)
    let _interval = setInterval(async() => {
      // console.log(123, p1Deck)
      if (_number < cardNumber) {
        let obj = p1Deck[p1Deck.length - 1]
        p1Deck.splice(p1Deck.length-1, 1)
        commonStore.updateP1Deck(p1Deck)
        // 修改卡组
        await editDeckCard(deckGroup, obj, "remove")
        await renderDeckText(deckGroup, `${commonStore.$state.p1Deck.length}`, commonStore.$state._font, position)
        // 手牌区添加手牌
        handRef.value.addP1HandCard(obj, deckGroup)
      } else {
        clearInterval(_interval)
        resolve(true)
      }
      _number++
    }, 200)
  })

  let p2 = new Promise((resolve, reject) => {
    let cardNumber = 4
    let _number = 0
    let p2Deck = JSON.parse(JSON.stringify(commonStore.$state.p2Deck))
    let deckGroup = scene.getObjectByName("p2_deckGroup")
    let position = new THREE.Vector3(0, 0.005 * p2Deck.length, 0)
    let _interval = setInterval(async() => {
      // console.log(123, p1Deck)
      if (_number < cardNumber) {
        let obj = p2Deck[p2Deck.length - 1]
        p2Deck.splice(p2Deck.length-1, 1)
        commonStore.updateP2Deck(p2Deck)
        // 修改卡组
        await editDeckCard(deckGroup, obj, "remove")
        await renderDeckText(deckGroup, `${commonStore.$state.p2Deck.length}`, commonStore.$state._font, position)
        // 手牌区添加手牌
        handRef.value.addP2HandCard(obj, deckGroup)
      } else {
        clearInterval(_interval)
        resolve(true)
      }
      _number++
    }, 200)
  })
  return new Promise((resolve, reject) => {
    Promise.all([p1, p2]).then((res: any) => {
      resolve(true)
    })
  })
}

// p2抽牌事件
const p2DrawCardEvent = (cardNumber: any) => {
  return new Promise((resolve, reject) => {
    let _number = 0
    let p2Deck = JSON.parse(JSON.stringify(commonStore.$state.p2Deck))
    let deckGroup = scene.getObjectByName("p2_deckGroup")
    let position = new THREE.Vector3(0, 0.005 * p2Deck.length, 0)
    let _interval = setInterval(async() => {
      // console.log(123, p1Deck)
      if (_number < cardNumber) {
        let obj = p2Deck[p2Deck.length - 1]
        p2Deck.splice(p2Deck.length-1, 1)
        commonStore.updateP2Deck(p2Deck)
        // 修改卡组
        await editDeckCard(deckGroup, obj, "remove")
        await renderDeckText(deckGroup, `${commonStore.$state.p2Deck.length}`, commonStore.$state._font, position)
        // 手牌区添加手牌
        handRef.value.addP2HandCard(obj, deckGroup)
      } else {
        clearInterval(_interval)
        resolve(true)
      }
      _number++
    }, 200)
  })
}

// p2卡牌上场事件
const p2HandToSite = (card: any) => {
  let sitePlane = scene.getObjectByName("对方战域Plane")
  let userData = card.userData
  if (userData.type === "怪兽") {
    let meshes = sitePlane.children.filter((v: any) => v.name.indexOf("对方怪兽区") > -1 && v.userData.empty === true)
    if (meshes.length > 0) {
      let _mesh = null
      let m1 = meshes.find((v: any) => v.name.indexOf(1) > -1)
      let m2 = meshes.find((v: any) => v.name.indexOf(2) > -1)
      let m3 = meshes.find((v: any) => v.name.indexOf(3) > -1)
      if (m2) {
        _mesh = m2
      } else if (m1) {
        _mesh = m1
      } else if (m3) {
        _mesh = m3
      }
      let p2_handGroup = scene.getObjectByName("p2_handGroup")
      // card.rotateX(180 * (Math.PI / 180)) // 弧度
      renderSiteCard(p2_handGroup, card, _mesh)
    }
  }
}

// 鼠标按下事件
const onMousedown = (ev: any) => {
  // console.log(222, ev.target)
  // 判断是否点击到canvas上
  if(!(ev.target instanceof HTMLCanvasElement)){
    return;
  }
  // 将鼠标位置归一化为设备坐标。x 和 y 方向的取值范围是 (-1 to +1)
  let clientX = ev.clientX || ev.changedTouches[0].pageX
  let clientY = ev.clientY || ev.changedTouches[0].pageY

  let point = transPos(clientX, clientY)

  // 通过摄像机和鼠标位置更新射线
  raycaster.setFromCamera( point, camera );

  // 点击卡组事件
  // onP1DeckEvent()
}

// 点击卡组事件
const onP1DeckEvent = () => {
  if (commonStore.$state.p1Deck.length <= 0) {
    return
  }
  let p1_deckGroup = scene.getObjectByName("p1_deckGroup")
  let arr = raycaster.intersectObject(p1_deckGroup, true)
  if (arr.length <= 0) {
    return
  }
  let pos1 = p1_deckGroup.userData.position
  let pos2 = new THREE.Vector3(0, 2, 0)
  // console.log(444, pos1, pos2)
  if (p1_deckGroup.position.x !== pos2.x) {
    drawCardRef.value.drawCardAnimate1(p1_deckGroup, pos1, pos2)
  }
}

// 鼠标移动事件
const onMousemove = (ev: any) => {
  // 将鼠标位置归一化为设备坐标。x 和 y 方向的取值范围是 (-1 to +1)
  pointer.x = ev.clientX || ev.changedTouches[0].pageX
  pointer.y = ev.clientY || ev.changedTouches[0].pageY
}

// 手牌事件
const onHandEvent = () => {
  let handGroup = scene.getObjectByName("p1_handGroup")
  const dragControls = new DragControls( handGroup.children, camera, renderer.domElement );

  dragControls.addEventListener( 'dragstart', function ( event: any ) {
    event.object.position.y += 0.04
  });

  dragControls.addEventListener( 'drag', function ( event: any ) {
    event.object.position.y += 0.04
    
  });

  dragControls.addEventListener( 'dragend', function ( event: any ) {
    event.object.position.y -= 0.04
    let p1SitePlane = scene.getObjectByName("己方战域Plane")
    let point = transPos(pointer.x, pointer.y)
    // 通过摄像机和鼠标位置更新射线
    raycaster.setFromCamera( point, camera );
    const intersects = raycaster.intersectObjects(p1SitePlane.children);
    if (intersects.length > 0) {
      dialogRef.value.init({
        type: "handToSite",
        obj: event.object,
        message: "是否上场该卡牌"
      })
    } else {
      handRef.value.backPosition(event.object)
    }
  });
}

// 手牌移入己方战域
const handToSite = (data: any) => {
  let sitePlane = scene.getObjectByName("己方战域Plane")
  console.log(data)
  let userData = data.userData
  if (userData.type === "怪兽") {
    let meshes = sitePlane.children.filter((v: any) => v.name.indexOf("己方怪兽区") > -1 && v.userData.empty === true)
    if (meshes.length > 0) {
      let _mesh = null
      let m1 = meshes.find((v: any) => v.name.indexOf(1) > -1)
      let m2 = meshes.find((v: any) => v.name.indexOf(2) > -1)
      let m3 = meshes.find((v: any) => v.name.indexOf(3) > -1)
      if (m2) {
        _mesh = m2
      } else if (m1) {
        _mesh = m1
      } else if (m3) {
        _mesh = m3
      }
      let p1_handGroup = scene.getObjectByName("p1_handGroup")
      renderSiteCard(p1_handGroup, data, _mesh)
    }
  }
}

// 绘制场上卡牌
const renderSiteCard = async (handGroup: any, data: any, mesh: any) => {
  let position = new THREE.Vector3(0, 0, 0)
  mesh.getWorldPosition(position)
  mesh.userData.empty = false
  let oldMesh = handGroup.children.find((v: any) => v.name === data.name)
  let newMesh = oldMesh.clone()
  newMesh.userData.areaType = mesh.name // 用来记录卡牌在哪个区域，怪兽区、墓地、手牌、卡组、场地等
  newMesh.scale.set(0.8, 0.8, 0.8)
  if (handGroup.name === "p1_handGroup") {
    handRef.value.removeP1HandCard(oldMesh)
  } else if (handGroup.name === "p2_handGroup") {
    handRef.value.removeP2HandCard(oldMesh)
    newMesh.rotateX(180 * (Math.PI / 180)) // 弧度
    newMesh.rotateY(180 * (Math.PI / 180)) // 弧度
  }
  scene.add(newMesh)
  newMesh.position.set(position.x, position.y, position.z)
  await renderSiteCardText(handGroup, newMesh, commonStore.$state._font)

  // 创建伽马校正通道
  // const gammaPass= new ShaderPass(GammaCorrectionShader)
  // composer.addPass( gammaPass );
  
  // const outlinePass = new OutlinePass(new THREE.Vector2( window.innerWidth, window.innerHeight ), scene, camera); // 模糊
  // outlinePass.edgeStrength = 1.0; // 调整边缘强度
  // outlinePass.edgeGlow = 1.0; // 边缘发光强度
  // outlinePass.usePatternTexture = false; // 是否使用纹理
  // outlinePass.visibleEdgeColor.set(0xffffff); // 设置边缘颜色
  // outlinePass.hiddenEdgeColor.set(0x000000); // 设置隐藏边缘的颜色

  // outlinePass.selectedObjects = [newMesh.children[0]]
  // composer.addPass( outlinePass );
  console.log(123, newMesh)
}

// 取消
const onCancel = (data: any) => {
  handRef.value.backPosition(data)
}
</script>

<style lang="scss" scoped>
.scene {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
}
</style>

页面效果如下：