从 RPG 游戏加载数据

时间：2021-04-30 09:03:24

标签： java

所以我正在开发一个简单的 RPG 游戏。我想添加一个选项来加载整个游戏的进度，但我想我对 Java 不太熟悉，所以没有问题。这个想法是在检查点上保存游戏，并在游戏继续时加载保存的数据。我在使用 loadGame 方法时遇到错误，我想这与我尝试加载的数据都是不同的数据类型这一事实有关。健康和等级是整数，而装备物品是一个字符串。

这里只介绍两个方法，saveGame 和loadGame，因为代码有点太长，无法简单地将其粘贴到整体中。当然，如果需要，我会添加额外的代码。

public static void saveGame() {
    try {
        BufferedWriter bw = new BufferedWriter(new FileWriter("savedGame.txt"));
        bw.write("Your health is " + player.getHealth());
        bw.newLine();
        bw.write("Your level is " + player.getLevel());
        bw.newLine();
        bw.write("" + player.equippedItem);
        bw.close();
    }
    catch (Exception e) {
        System.out.println("There's an error.");
    }
}

saveGame() 运行良好，它将数据存储在文件中。问题在于 loadGame() 方法。

public void loadGame() {
    try {
        BufferedReader br = new BufferedReader(new FileReader("savedGame.txt"));
        player.getHealth();
        player.getLevel();
        player.equippedItem;
        br.close();
    } catch (Exception e) {
        System.out.println("There's an error.");
    }
}

player.getHealth() 和 player.getLevel() 的结果被忽略了，可能是我刚才提到的数据类型问题。

1 个答案:

答案 0 :(得分：1)

您正在做的是在 saveGame() 中创建一个文本文件，在 loadGame() 中“打开”该保存文件，但不访问其中的数据。< /p>

您已经正确地创建了一个 BufferedReader，但您没有正确地使用它。您将需要使用 Codeception version: 4.1.20 PHP Version: 7.4.3 Operating System: Ubuntu 20 Installation type: Phar || Composer : Installed via Composer and Wp Browser List of installed packages (composer show) antecedent/patchwork 2.1.12 Method redefinition (monkey-pa... behat/gherkin v4.8.0 Gherkin DSL parser for PHP clue/stream-filter v1.5.0 A simple and modern approach t... codeception/codeception 4.1.20 BDD-style testing framework codeception/lib-asserts 1.13.2 Assertion methods used by Code... codeception/lib-innerbrowser 1.5.0 Parent library for all Codecep... codeception/module-asserts 1.3.1 Codeception module containing ... codeception/module-cli 1.1.1 Codeception module for testing... codeception/module-db 1.1.0 DB module for Codeception codeception/module-filesystem 1.0.3 Codeception module for testing... codeception/module-phpbrowser 1.0.2 Codeception module for testing... codeception/module-webdriver 1.2.1 WebDriver module for Codeception codeception/phpunit-wrapper 9.0.6 PHPUnit classes used by Codece... codeception/stub 3.7.0 Flexible Stub wrapper for PHPU... codeception/util-universalframework 1.0.0 Mock framework module used in ... dg/mysql-dump v1.5.1 MySQL database dump. doctrine/inflector 2.0.3 PHP Doctrine Inflector is a sm... doctrine/instantiator 1.4.0 A small, lightweight utility t... guzzlehttp/guzzle 7.3.0 Guzzle is a PHP HTTP client li... guzzlehttp/promises 1.4.1 Guzzle promises library guzzlehttp/psr7 1.8.1 PSR-7 message implementation t... hautelook/phpass 0.3.5 Portable PHP password hashing ... http-interop/http-factory-guzzle 1.0.0 An HTTP Factory using Guzzle PSR7 illuminate/collections v8.40.0 The Illuminate Collections pac... illuminate/contracts v8.40.0 The Illuminate Contracts package. illuminate/macroable v8.40.0 The Illuminate Macroable package. illuminate/support v8.40.0 The Illuminate Support package. jean85/pretty-package-versions 2.0.3 A library to get pretty versio... lucatume/wp-browser 3.0.6 WordPress extension of the Php... mikehaertl/php-shellcommand 1.6.4 An object oriented interface t... mikemclin/laravel-wp-password 2.0.1 Laravel package that checks an... mustache/mustache v2.13.0 A Mustache implementation in PHP. myclabs/deep-copy 1.10.2 Create deep copies (clones) of... nesbot/carbon 2.46.0 An API extension for DateTime ... nikic/php-parser v4.10.4 A PHP parser written in PHP phar-io/manifest 2.0.1 Component for reading phar.io ... phar-io/version 3.1.0 Library for handling version i... php-http/client-common 2.3.0 Common HTTP Client implementat... php-http/discovery 1.13.0 Finds installed HTTPlug implem... php-http/httplug 2.2.0 HTTPlug, the HTTP client abstr... php-http/message 1.11.0 HTTP Message related tools php-http/message-factory v1.0.2 Factory interfaces for PSR-7 H... php-http/promise 1.1.0 Promise used for asynchronous ... php-webdriver/webdriver 1.10.0 A PHP client for Selenium WebD... phpdocumentor/reflection-common 2.2.0 Common reflection classes used... phpdocumentor/reflection-docblock 5.2.2 With this component, a library... phpdocumentor/type-resolver 1.4.0 A PSR-5 based resolver of Clas... phpspec/prophecy 1.13.0 Highly opinionated mocking fra... phpunit/php-code-coverage 9.2.6 Library that provides collecti... phpunit/php-file-iterator 3.0.5 FilterIterator implementation ... phpunit/php-invoker 3.1.1 Invoke callables with a timeout phpunit/php-text-template 2.0.4 Simple template engine. phpunit/php-timer 5.0.3 Utility class for timing phpunit/phpunit 9.5.4 The PHP Unit Testing framework. psr/container 1.1.1 Common Container Interface (PH... psr/event-dispatcher 1.0.0 Standard interfaces for event ... psr/http-client 1.0.1 Common interface for HTTP clients psr/http-factory 1.0.1 Common interfaces for PSR-7 HT... psr/http-message 1.0.1 Common interface for HTTP mess... psr/log 1.1.3 Common interface for logging l... psr/simple-cache 1.0.1 Common interfaces for simple c... ralouphie/getallheaders 3.0.3 A polyfill for getallheaders. rmccue/requests v1.8.0 A HTTP library written in PHP,... sebastian/cli-parser 1.0.1 Library for parsing CLI options sebastian/code-unit 1.0.8 Collection of value objects th... sebastian/code-unit-reverse-lookup 2.0.3 Looks up which function or met... sebastian/comparator 4.0.6 Provides the functionality to ... sebastian/complexity 2.0.2 Library for calculating the co... sebastian/diff 4.0.4 Diff implementation sebastian/environment 5.1.3 Provides functionality to hand... sebastian/exporter 4.0.3 Provides the functionality to ... sebastian/global-state 5.0.2 Snapshotting of global state sebastian/lines-of-code 1.0.3 Library for counting the lines... sebastian/object-enumerator 4.0.4 Traverses array structures and... sebastian/object-reflector 2.0.4 Allows reflection of object at... sebastian/recursion-context 4.0.4 Provides functionality to recu... sebastian/resource-operations 3.0.3 Provides a list of PHP built-i... sebastian/type 2.3.1 Collection of value objects th... sebastian/version 3.0.2 Library that helps with managi... sentry/sdk 3.1.0 This is a metapackage shipping... sentry/sentry 3.2.1 A PHP SDK for Sentry (http://s... symfony/browser-kit v5.2.4 Simulates the behavior of a we... symfony/console v5.2.6 Eases the creation of beautifu... symfony/css-selector v5.2.4 Converts CSS selectors to XPat... symfony/deprecation-contracts v2.4.0 A generic function and convent... symfony/dom-crawler v5.2.4 Eases DOM navigation for HTML ... symfony/event-dispatcher v5.2.4 Provides tools that allow your... symfony/event-dispatcher-contracts v2.4.0 Generic abstractions related t... symfony/finder v5.2.4 Finds files and directories vi... symfony/http-client v5.2.6 Provides powerful methods to f... symfony/http-client-contracts v2.4.0 Generic abstractions related t... symfony/options-resolver v5.2.4 Provides an improved replaceme... symfony/polyfill v1.22.1 Symfony polyfills backporting ... symfony/process v5.2.4 Executes commands in sub-proce... symfony/service-contracts v2.4.0 Generic abstractions related t... symfony/string v5.2.6 Provides an object-oriented AP... symfony/translation v5.2.6 Provides tools to internationa... symfony/translation-contracts v2.4.0 Generic abstractions related t... symfony/var-dumper v5.2.6 Provides mechanisms for walkin... symfony/yaml v5.2.5 Loads and dumps YAML files theseer/tokenizer 1.2.0 A small library for converting... voku/portable-ascii 1.5.6 Portable ASCII library - perfo... vria/nodiacritic 0.1.2 Tiny helper function that remo... webmozart/assert 1.10.0 Assertions to validate method ... wp-cli/mustangostang-spyc 0.6.3 A simple YAML loader/dumper cl... wp-cli/php-cli-tools v0.11.12 Console utilities for PHP wp-cli/wp-cli v2.4.1 WP-CLI framework 读取文本文件，该文件将返回类似“您的健康状况为 123”这样的字符串。

要使用此数据更新玩家的状态，您可以在 loadGame() 中添加如下内容：

actor: AcceptanceTester
modules:
    enabled:
        - WPDb
        - WPBrowser
        - \Helper\Acceptance
    config:
        WPDb:
            dsn: '%TEST_SITE_DB_DSN%'
            user: '%TEST_SITE_DB_USER%'
            password: '%TEST_SITE_DB_PASSWORD%'
            dump: 'tests/_data/lasso_test.sql'
            #import the dump before the tests; this means the test site database will be repopulated before the tests.
            populate: false
            # re-import the dump between tests; this means the test site database will be repopulated between the tests.
            cleanup: true
            waitlock: 10
            url: '%TEST_SITE_WP_URL%'            
            urlReplacement: true #replace the hardcoded dump URL with the one above
            tablePrefix: '%TEST_SITE_TABLE_PREFIX%'
        WPBrowser:
            url: '%TEST_SITE_WP_URL%'
            adminUsername: '%TEST_SITE_ADMIN_USERNAME%'
            adminPassword: '%TEST_SITE_ADMIN_PASSWORD%'
            adminPath: '%TEST_SITE_WP_ADMIN_PATH%'            
            headers:
                X_TEST_REQUEST: 1
                X_WPBROWSER_REQUEST: 1

解析方法将采用字符串输入，例如“您的健康状况为 123”并返回整数 123。

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