从零开发游戏需要学习的c#模块，第十五章（一个完整的可以运行的小游戏）

这是这个系列的最后一课如果你认真学习了之前的内容关于c#游戏开发要学习的代码就差不多了。今天我们来进行最后的收尾往我们之前的代码中加入一个开幕界面保证保存和加载内容正常运行。只用修改game.csusing System;using System.Collections.Generic;using System.IO;using System.Text.Json;using System.Threading;namespace MyGame{class Game{private static Game? instance;public static Game Instance{get{if (instance null)instance new Game();return instance;}}private Game() { }private bool isRunning;private Player player default!;private GameMap map default!;private InputHandler input default!;private GameUI ui default!;private BattleManager battleManager default!;private ListCoin coins default!;private int score;private int totalCoins 5;private ListEnemy enemies default!;private int totalEnemies 3;private Inventory inventory default!;private AchievementSystem achievement default!;private SoundSystem sound default!;private string saveFilePath gamesave.json;// ★ 入口 public void Start(){Console.CursorVisible false;Console.Title 控制台RPG;// 显示主菜单ShowMainMenu();}// ★ 主菜单 private void ShowMainMenu(){Console.Clear();string title ╔══════════════════════════╗║ ️ 控制台 RPG ️ ║╚══════════════════════════╝;Console.WriteLine(title);Console.WriteLine( [1] 新游戏);Console.WriteLine( [2] 继续游戏);Console.WriteLine( [3] 退出);Console.Write(\n 请选择);bool hasSave File.Exists(saveFilePath);if (hasSave){Console.ForegroundColor ConsoleColor.Green;Console.WriteLine(\n 检测到存档文件);Console.ResetColor();}while (true){if (Console.KeyAvailable){ConsoleKeyInfo key Console.ReadKey(true);switch (key.KeyChar){case 1:NewGame();return;case 2:if (hasSave){LoadAndStart();return;}else{Console.SetCursorPosition(0, 9);Console.ForegroundColor ConsoleColor.Red;Console.Write( 没有存档文件按任意键返回...);Console.ResetColor();Console.ReadKey(true);ShowMainMenu();return;}case 3:return; // 直接退出程序}}Thread.Sleep(30);}}// ★ 新游戏 private void NewGame(){Console.Clear();Console.Write(请输入你的名字);string name Console.ReadLine();if (string.IsNullOrWhiteSpace(name))name 勇者;InitGame();player new Player(map.Width / 2, map.Height / 2);player.Hp player.MaxHp;score 0;inventory new Inventory();Console.Clear();Console.WriteLine(欢迎 name 冒险开始了...);Thread.Sleep(800);RunGameLoop();}// ★ 读档并开始 private void LoadAndStart(){Console.Clear();Console.WriteLine(正在读取存档...);Thread.Sleep(500);InitGame();player new Player(map.Width / 2, map.Height / 2);if (!LoadGame()){Console.WriteLine(存档读取失败开始新游戏...);Thread.Sleep(1000);player.Hp player.MaxHp;score 0;inventory new Inventory();}RunGameLoop();}// 初始化组件 private void InitGame(){map new GameMap(40, 20);input new InputHandler();ui new GameUI(map.Height);battleManager new BattleManager();achievement new AchievementSystem();sound new SoundSystem();coins new ListCoin();enemies new ListEnemy();SpawnCoins(totalCoins);SpawnEnemies(totalEnemies);isRunning true;}// 游戏主循环 private void RunGameLoop(){Console.Clear();Console.CursorVisible false;map.Draw();DrawAllStaticObjects();while (isRunning player.Hp 0){Update();Render();Thread.Sleep(30);}// 游戏结束自动存档SaveGame();Console.SetCursorPosition(0, map.Height 4);if (player.Hp 0){Console.ForegroundColor ConsoleColor.Red;Console.WriteLine( 你倒下了...游戏结束。);Console.ResetColor();}else{Console.ForegroundColor ConsoleColor.Green;Console.WriteLine(游戏结束进度已保存。);Console.ResetColor();}Console.WriteLine(按任意键返回主菜单...);Console.ReadKey(true);ShowMainMenu(); // 返回主菜单}// 存档 private void SaveGame(){try{GameSaveData data new GameSaveData{PlayerX player.X,PlayerY player.Y,PlayerHp player.Hp,PlayerMaxHp player.MaxHp,Score score,InventoryItems inventory.GetAllItems()};string json JsonSerializer.Serialize(data);File.WriteAllText(saveFilePath, json);}catch { }}// 读档返回 true 表示成功private bool LoadGame(){if (!File.Exists(saveFilePath)) return false;try{string json File.ReadAllText(saveFilePath);GameSaveData? data JsonSerializer.DeserializeGameSaveData(json);if (data null) return false;player.X data.PlayerX;player.Y data.PlayerY;player.Hp data.PlayerHp;score data.Score;inventory new Inventory();if (data.InventoryItems ! null){foreach (string item in data.InventoryItems)inventory.AddItemSilent(item);}coins.Clear();enemies.Clear();SpawnCoins(totalCoins);SpawnEnemies(totalEnemies);return true;}catch{return false;}}// 以下不变 private void SpawnCoins(int count) { Random rng new Random(); for (int i 0; i count; i) { int x rng.Next(1, map.Width - 1); int y rng.Next(1, map.Height - 1); coins.Add(new Coin(x, y)); } } private void SpawnEnemies(int count) { Random rng new Random(); for (int i 1; i count; i) { int x rng.Next(1, map.Width - 1); int y rng.Next(1, map.Height - 1); Slime slime new Slime(绿色史莱姆 i, 25 i * 5, 6 i, 史莱姆粘液); slime.X x; slime.Y y; slime.IsActive true; slime.OnEnemyKilled achievement.OnEnemyKilled; slime.OnEnemyKilled sound.OnEnemyKilled; slime.OnEnemyKilled (Enemy e) { inventory.AddItem(e.DropItem); }; enemies.Add(slime); } } private void DrawAllStaticObjects() { foreach (Coin coin in coins) coin.Draw(); foreach (Enemy enemy in enemies) DrawEnemy(enemy); } private void DrawEnemy(Enemy enemy) { if (!enemy.IsActive) return; Console.SetCursorPosition(enemy.X, enemy.Y); Console.ForegroundColor ConsoleColor.Red; Console.Write(S); Console.ResetColor(); } private void EraseEnemy(Enemy enemy) { Console.SetCursorPosition(enemy.X, enemy.Y); Console.Write( ); } private void Update() { InputHandler.Command cmd input.GetCommand(); switch (cmd) { case InputHandler.Command.MoveUp: player.Move(0, -1, 1, 1, map.Width - 2, map.Height - 2); break; case InputHandler.Command.MoveDown: player.Move(0, 1, 1, 1, map.Width - 2, map.Height - 2); break; case InputHandler.Command.MoveLeft: player.Move(-1, 0, 1, 1, map.Width - 2, map.Height - 2); break; case InputHandler.Command.MoveRight: player.Move(1, 0, 1, 1, map.Width - 2, map.Height - 2); break; case InputHandler.Command.Save: SaveGame(); ShowSaveMessage(); break; case InputHandler.Command.Load: LoadGame(); ShowLoadMessage(); break; case InputHandler.Command.Quit: isRunning false; break; } CheckCoinCollision(); CheckEnemyCollision(); if (GetActiveCoinCount() 0) SpawnCoins(totalCoins); if (GetActiveEnemyCount() 0) SpawnEnemies(totalEnemies); } private void ShowSaveMessage() { Console.SetCursorPosition(2, map.Height 3); Console.Write(new string( , 30)); Console.SetCursorPosition(2, map.Height 3); Console.ForegroundColor ConsoleColor.Green; Console.Write(✅ 已保存); Console.ResetColor(); } private void ShowLoadMessage() { Console.SetCursorPosition(2, map.Height 3); Console.Write(new string( , 30)); Console.SetCursorPosition(2, map.Height 3); Console.ForegroundColor ConsoleColor.Cyan; Console.Write( 已加载); Console.ResetColor(); } private void CheckCoinCollision() { foreach (Coin coin in coins) { if (coin.IsActive coin.X player.X coin.Y player.Y) { coin.IsActive false; coin.Erase(); score coin.Value; inventory.AddItem(金币); } } } private void CheckEnemyCollision() { foreach (Enemy enemy in enemies) { if (enemy.IsActive enemy.X player.X enemy.Y player.Y) { EraseEnemy(enemy); bool win battleManager.StartBattle(player, enemy); if (!win) { isRunning false; return; } Console.Clear(); map.Draw(); DrawAllStaticObjects(); } } } private int GetActiveCoinCount() { int count 0; foreach (Coin coin in coins) if (coin.IsActive) count; return count; } private int GetActiveEnemyCount() { int count 0; foreach (Enemy enemy in enemies) if (enemy.IsActive) count; return count; } private void Render() { player.EraseOld(); player.Draw(); ui.Draw(score, GetActiveCoinCount(), inventory.ItemCount, player.Hp, player.MaxHp); } } }