yichael_moveordiealone/assets/Scripts/Game/Bot.ts

import Role from "./Role";

const {ccclass, property} = cc._decorator;

@ccclass
export default class Bot extends cc.Component {
    role:Role;
    target:any;

    onLoad(){
        this.role = this.node.getComponent(Role);
        
        this.schedule(this.updateOperate,0.5);
    }

    updateOperate(){
        if(this.role.saw.active){//when has saw, target a nearest other role
            let distance = 10000;
            window.controller.roles.forEach((role:Role)=>{
                if(role!=this.role&&role.isValid){
                    let newDistance = this.role.node.position.sub(role.node.position).mag();
                    if(newDistance<distance){
                        distance = newDistance;
                        this.target = role;
                    }
                }
            });
        }else{//when without saw, target a nearest saw
            let distance = 10000;
            window.controller.saws.forEach((saw:cc.Node)=>{
                if(saw.isValid){
                    let newDistance = this.role.node.position.sub(saw.position).mag();
                    if(newDistance<distance){
                        distance = newDistance;
                        this.target = saw;
                    }
                }
            });
        }
        if(!this.target||!this.target.isValid){//when without target, random move
            this.randomMove();
        }else{//when has target, move to target
            this.moveToTarget();
        }
    }

    left(){
        this.role.right = false;
        this.role.left = true;
    }

    right(){
        this.role.left = false;
        this.role.right = true;
    }

    jump(){
        this.role.up = true;
        this.scheduleOnce(()=>{
            this.role.up = false;
        },0.1);
    }

    randomMove(){
        if(Math.random()<0.5){
            this.left();
        }else{
            this.right();
        }
        if(Math.random()<0.5){
            this.jump();
        }
    }

    moveToTarget(){
        let targetX = 0;
        let targetY = 0;
        if(this.target instanceof Role){
            targetX = this.target.node.x;
            targetY = this.target.node.y;
        }else if(this.target instanceof cc.Node){
            targetX = this.target.x;
            targetY = this.target.y;
        }
        if(targetX<this.role.node.x){
            this.left();
        }else if(targetX>this.role.node.x){
            this.right();
        }
        if(targetY - this.role.node.y > 100){
            this.jump();
        }
    }

    leaveTarget(){
        let targetX = 0;
        let targetY = 0;
        if(this.target instanceof Role){
            targetX = this.target.node.x;
            targetY = this.target.node.y;
        }else if(this.target instanceof cc.Node){
            targetX = this.target.x;
            targetY = this.target.y;
        }
        if(targetX<this.role.node.x){
            this.right();
        }else if(targetX>this.role.node.x){
            this.right();
        }
        if(targetY - this.role.node.y > -100){
            this.jump();
        }
    }
}