JumpGame/assets/Script/Character/Character.ts

// Learn TypeScript:
//  - https://docs.cocos.com/creator/2.4/manual/en/scripting/typescript.html
// Learn Attribute:
//  - https://docs.cocos.com/creator/2.4/manual/en/scripting/reference/attributes.html
// Learn life-cycle callbacks:
//  - https://docs.cocos.com/creator/2.4/manual/en/scripting/life-cycle-callbacks.html

import EventName from "../EventName/EventName";
import { Global } from "../Global";
import MyComponent from "../Template/MyComponent";
import Parabola from "./Parabola";

const { ccclass, property } = cc._decorator;

@ccclass
export default class Character extends MyComponent {


    //最高纪录
    @property(cc.RigidBody)
    CharacterRigidBody: cc.RigidBody = null;
    @property(cc.Graphics)
    graphic_line: cc.Graphics = null;

    @property(Parabola)
    Parabola: Parabola = null;

    //临时物理值============================================
    UpPower: number = 100;
    Xscale: number = 4;
    Yscale: number = 4;
    //跳跃的常量
    JumpConstX: number = 0;
    JumpConstY: number = 0;
    // LIFE-CYCLE CALLBACKS:
    //游戏的重量G值
    G: number = 4;

    //人物临时值
    Jump_before_Data: cc.Vec2 = null;
    Jump_late_Data: cc.Vec2 = null;

    onLoad() {
        super.onLoad()
        cc.director.getPhysicsManager().enabled = true;
    }
    onDestroy(): void {
        super.onDestroy()
    }
    start() {
        this.regEvent(EventName.YaoGanMove, this.onTouchMove, this)
        this.regEvent(EventName.YaoGanEnd, this.onTouchEnd, this)





        this.UpPower = Global.UpPower
        this.Xscale = Global.Xscale
        this.Yscale = Global.Yscale
        cc.director.getPhysicsManager().gravity = cc.v2(0, Global.G)
        this.G = cc.director.getPhysicsManager().gravity.y


        this.JumpConstX = this.UpPower * this.Xscale
        this.JumpConstY = this.UpPower * this.Yscale

    }

    onTouchMove(dir: cc.Vec3, power: number) {

        this.CharacterRigidBody.linearVelocity = cc.v2(dir.x * 0.3 * this.JumpConstX, dir.y * 0.3 * this.JumpConstY)
        return
        if (!this.JumpOk()) {
            return
        }


        this.Parabola.clear()

        let Temp = cc.v2(dir.x * power * this.JumpConstX, dir.y * power * this.JumpConstY)

        let START_POS = cc.v2(this.node.position.x, this.node.position.y - 80)

        const dt = 0.15;

        for (let count = 2; count < 100; count++) {
            const time = dt * count;
            // s = v_x * t
            const dx = Temp.x * time;
            // h = v_y * t + 0.5 * a * t * t
            const dy = Temp.y * time + 0.5 * this.G * this.CharacterRigidBody.gravityScale * time * time;
            // 当前时间点坐标
            const targetX = START_POS.x + dx;
            const targetY = START_POS.y + dy;
            // 坐标超过地板就不画了
            if (targetY < START_POS.y - 80) break;
            this.Parabola.circle(targetX, targetY);
        }
        // this.graphic_line.fill()
        // this.graphic_line.stroke()

    }
    onTouchEnd(dir: cc.Vec3, power: number) {
        // console.log('onTouchEnd-dir', dir);
        // console.log('onTouchEnd-power', power);

        if (!this.JumpOk()) {
            return
        }

        this.Parabola.clear()


        //跳跃
        this.CharacterRigidBody.linearVelocity = cc.v2(dir.x * power * this.JumpConstX, dir.y * power * this.JumpConstY)
    }

    JumpOk() {
        if (this.CharacterRigidBody.awake == false) {
            return true
        }
        return false
    }




}