ZYZ/game-server/app/servers/battle/handler/battleUtils.ts

import { ActionPointModel } from '../../../db/ActionPoint';
import { BattleDropModel } from '../../../db/BattleDrop';

import { getWarById, getGoodById } from '../../../util/gamedata';
import { decodeStr, Reward } from '../../../util/util';
import { ACTION_POIN, BATTLE_REWARD_TYPE, GOOD_TYPE } from '../../../consts/consts';

export async function getAp(now: number, roleId: string) {
    let dataAp = await ActionPointModel.getAp(roleId);
    const maxAp = ACTION_POIN.MAX; // 最大体力值
    const per = ACTION_POIN.PER; // 恢复时间（ms)
    let {ap, refTime} = dataAp;
    if(ap >= maxAp) {
        // 体力溢出不需要做时间的处理
        return { ap, maxAp, refTime: now, apRemainTime:0, isOver: true }
    } else {
        if(refTime > now) refTime = now; // refTime：每次记录时候最近的一个整的时间点，绝对不会大于now
        let n = Math.floor((now - refTime)/per); // 上次记录到现在可以增长多少体力
        ap += n; // 增加上
        if(ap >= maxAp) { // 加上后溢出了
            ap = maxAp;
            return { ap, maxAp, refTime: now, apRemainTime:0, isOver: true }
        } else {
            refTime += n * per; // 更新refTime到离现在最近的一个整的时间点
            let apRemainTime = Math.floor((refTime + per - now)/1000); // 恢复下一点需要多少时间
            
            return { ap, maxAp, refTime, apRemainTime, isOver: false }
        }
    }
}

export async function setAp(now: number, roleId: string, changeAp: number) {
    let ApResult = await getAp(now, roleId);
    let { ap, maxAp, refTime, apRemainTime, isOver } = ApResult; // 更新ap
    ap += changeAp;
    if(ap >= maxAp) { // 溢出
        refTime = now;
        apRemainTime = 0;
    }
    if(ap < 0) return null // 体力不足
    await ActionPointModel.saveAp(roleId, ap, refTime);

    if(isOver && ap < maxAp) apRemainTime = Math.floor(ACTION_POIN.PER / 1000); // 特殊处理
    return {ap, maxAp, refTime, apRemainTime}
}

export class WarReward {
    roleId: string;
    roleName: string;
    battleId: number;
    condition: Map<number, boolean>;
    warInfo: any;
    isSuccess: boolean;
    rewards: Array<{type: number, gid: number, count: number}>;

    constructor(roleId: string, roleName: string, battleId: number, isSuccess: boolean) {
        this.roleId = roleId;
        this.roleName = roleName;
        this.battleId = battleId;
        this.condition = new Map();
        this.warInfo = getWarById(battleId);
        this.isSuccess = isSuccess;
    }

    public setCondition(id: number, isOk: boolean) {
        this.condition.set(id, isOk);
    }

    private handleFixReward(num: number) {
        if(this.isSuccess) { // 成功了才给固定奖励
            let {fixReward = ''} = this.warInfo;
            let reward = decodeStr('fixReward', fixReward);
            for(let obj of reward) this.rewards.push({type: BATTLE_REWARD_TYPE.FIX_REWARD, ...obj, count: obj.count * num});
        }
    }
    private handleConditionReward(num: number) {
        if(this.isSuccess) {
            let {conditionReward = ''} = this.warInfo;
            let reward = decodeStr('conditionReward', conditionReward);
            for(let obj of reward) {
                if(this.condition.get(obj.condition)) {
                    this.rewards.push({type: BATTLE_REWARD_TYPE.CONDITION_REWARD, ...obj, count: obj.count * num});
                }
            }
        }
    }

    private async handleRandomReward(num: number) {
        if(this.isSuccess) {
            let {RandomReward:randomReward = ''} = this.warInfo;

            let reward = decodeStr('randomReward', randomReward);
            for(let obj of reward) {
                let { gid, frequency } = obj;
                let dropHistory = await BattleDropModel.findByGid(this.roleId, this.battleId, gid);
                let { getNum = 0, allNum = 0, getSum = 0, allSum = 0 } = dropHistory;
                for(let i = 0; i < num; i ++) {
                    let flag = false; // 是否可以获得
                    if(allNum + 1 > frequency) {
                        allNum = 0; getNum = 0;
                    }
                    allNum++; allSum++;
                    if(getNum == 0) {
                        let r = Math.random();
                        if(r <= 1/frequency*allNum || (allNum >= frequency) ) {
                            flag = true; // 独立概率随机
                        }
                    }
                    if(flag) {
                        getNum ++; getSum++;
                        this.rewards.push({type: BATTLE_REWARD_TYPE.RANDOM_REWARD, ...obj});
                    }
                }
                await BattleDropModel.updateByGid(this.roleId, this.battleId, gid, {
                    getNum, allNum, getSum, allSum
                });
            }
        }
    }

    public async saveReward(num: number) {
        this.rewards = new Array();
        await this.handleFixReward(num);
        await this.handleConditionReward(num);
        await this.handleRandomReward(num);

        let rewardObject = new Reward(this.roleId, this.roleName, this.rewards);
        let returnGoods = await rewardObject.saveReward();
        return returnGoods;
    }

}