先来看一下游戏的界面
游戏的思路差不多像俄罗斯方块一样，上面的花一直往下掉，然后你就需要选中一只蜜蜂来吃上面的花，当蜜蜂的颜色和花的颜色一样或者花是彩色的花的时候，花就会被蜜蜂给吃掉，这时候这只蜜蜂也会被随机生成一只新的蜜蜂。当吃掉一朵彩色的花的时候，会增加一分，当花落到了底下的时候游戏结束。
看一下下面的代码：
花的对象
Flower.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text;namespace DemoGame {class Flower{public int Color;//颜色public float X;//X轴坐标public float Y;//Y轴坐标public Flower(int color, float x, float y){this.Color = color;this.X = x;this.Y = y;}} }
花的列容器
Column.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Content;namespace DemoGame {class Column{const int columnTop = 150;//列头高度，当花移动出这个高度后将开始新增新花const int numberOfFlowerColors = 6;//花颜色的数量const int rainbowFlowerColor = 6; //彩虹花的颜色const int flowerDeltaY = 80;const int flowerWidth = 72;//花的宽度const int flowerHeight = 72;//花的高度const int columnBottom = 620;//列的高度 用来判断花是否移动到底了private List<Flower> flowers = null;//花的集合private SpriteBatch spriteBatch;//绘制花private float x;//花的X轴，X轴的坐标是固定的private Random r;private Texture2D flowerMap;//花的纹理public float Velocity = 0.4f;//速度/// <summary>/// 判断是否有花移动到底/// </summary>public bool ReachedBottom{get{if (flowers.Count != 0 && flowers[0].Y >= columnBottom)return true;elsereturn false;}}/// <summary>/// 初始化一列/// </summary>/// <param name="content">当前的ContentManager</param>/// <param name="spriteBatch">当前的SpriteBatch</param>/// <param name="x"></param>/// <param name="seed"></param>public Column(ContentManager content, SpriteBatch spriteBatch, float x, int seed){this.spriteBatch = spriteBatch;this.x = x;this.flowers = new List<Flower>();this.r = new Random(seed);this.flowerMap = content.Load<Texture2D>("flowermap");//初始化 添加3朵花AddRandomFlower(x, columnTop + 2 * flowerDeltaY);AddRandomFlower(x, columnTop + flowerDeltaY);AddRandomFlower(x, columnTop);}/// <summary>/// 随机添加一朵花/// </summary>/// <param name="x"></param>/// <param name="y"></param>private void AddRandomFlower(float x, int y){int color = r.Next(numberOfFlowerColors+1);flowers.Add(new Flower(color, x, y));}/// <summary>/// 在spriteBatch中绘制花精灵/// </summary>public void Draw(){foreach (Flower flower in flowers){spriteBatch.Draw(flowerMap, new Vector2(flower.X, flower.Y), new Rectangle(flower.Color * flowerWidth, 0, flowerWidth, flowerHeight), Color.White);}}/// <summary>/// 更新列/// </summary>public void Update(){foreach (Flower f in flowers){f.Y += Velocity;//增加Y轴的偏移量，表示正在向下移动 }//如果最上面的花已经全部离开顶部，则需要随机生成新的花从上面下来if (flowers.Count == 0 || flowers[flowers.Count - 1].Y > columnTop)AddRandomFlower(x, columnTop - flowerDeltaY);}/// <summary>/// 获取最底下的一朵花/// </summary>/// <returns></returns>public Flower GetBottomFlower(){if (flowers.Count > 0)return flowers[0];elsereturn null;}/// <summary>/// 移走最底下的一朵花/// </summary>internal void RemoveBottomFlower(){if (flowers.Count > 0)flowers.RemoveAt(0);}} }
蜜蜂对象
Bee.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text;namespace DemoGame {class Bee{public int Color;//蜜蜂颜色public bool IsSelected = false;//是否选中public Bee(int color){this.Color = color;}} }
蜜蜂容器
BeePicker.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework;namespace DemoGame {class BeePicker{const int beeDeltaX = 96;const int beeStartX = 5;const int beeStartY = 700;const int numberOfBeeColors = 5;//蜜蜂颜色的数量private List<Bee> bees = null;//蜜蜂集合private SpriteBatch spriteBatch;private Texture2D beeMap;private Random r;public BeePicker(ContentManager content, SpriteBatch spriteBatch, int seed){beeMap = content.Load<Texture2D>("beemap");this.spriteBatch = spriteBatch;bees = new List<Bee>();r = new Random(seed);for (int i = 0; i < 5; i++){AddRandomBee();}}/// <summary>/// 添加一只蜜蜂/// </summary>private void AddRandomBee(){bees.Add(new Bee(r.Next(numberOfBeeColors + 1)));}/// <summary>/// 绘制蜜蜂/// </summary>public void Draw(){for (int i = 0; i < 5; i++){if(bees[i].IsSelected) spriteBatch.Draw(beeMap, new Vector2(beeStartX + i * beeDeltaX, beeStartY), new Rectangle(bees[i].Color * 91, 0, 91, 91), Color.DimGray);elsespriteBatch.Draw(beeMap, new Vector2(beeStartX + i * beeDeltaX, beeStartY), new Rectangle(bees[i].Color * 91, 0, 91, 91), Color.White);}}/// <summary>/// 选中一只蜜蜂/// </summary>/// <param name="x"></param>public void MarkSelectedBee(float x){GetSelectedBee(x).IsSelected = true;}/// <summary>/// 获取选中的蜜蜂/// </summary>/// <param name="x"></param>/// <returns></returns>public Bee GetSelectedBee(float x){int index = (int)(x / beeDeltaX);return bees[index];}/// <summary>/// 移除和替换蜜蜂/// </summary>/// <param name="selectedBee"></param>/// <param name="availableFlowers"></param>public void RemoveAndReplaceBee(Bee selectedBee, List<int> availableFlowers){int beeIndex = bees.IndexOf(selectedBee);//check if we already have a bee that matches the available flowers //remember to skip over the selectedBee since it will be removed in a momentbool match = false;int rainbowColor = 6;//if there is a rainbow flower it will always matchif (availableFlowers.Contains(rainbowColor))match = true;else{for (int i = 0; i < bees.Count; i++){if(i != beeIndex && availableFlowers.Contains(bees[i].Color)){match = true;break;}}}int color;if(match){//we already have a match, just add a random colored beecolor = r.Next(numberOfBeeColors + 1 );}else{//we have no match so we must pick a color from the available colorscolor = availableFlowers[r.Next(availableFlowers.Count)];}//set the selected bee to the new color to "create" a new beebees[beeIndex].Color = color;}internal void DeselectAll(){foreach (Bee bee in bees)bee.IsSelected = false;}} }
游戏主程序
Game1.cs
using System; using System.Collections.Generic; using System.Linq; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Input.Touch; using Microsoft.Xna.Framework.Media;namespace DemoGame {/// <summary>/// This is the main type for your game/// </summary>public class Game1 : Microsoft.Xna.Framework.Game{GraphicsDeviceManager graphics;SpriteBatch spriteBatch;//纹理 Texture2D backgroundTexture;Texture2D foregroundTexture;Texture2D hudTexture;Texture2D flowerMapTexture;//分数int score = 0;//字体 SpriteFont largeFont;SpriteFont mediumFont;SpriteFont smallFont;List<Column> columns;//列集合bool gameOver = false;//标记游戏是否结束BeePicker beePicker = null;//蜜蜂处理类Bee selectedBee = null;//蜜蜂public Game1(){graphics = new GraphicsDeviceManager(this);//设置游戏图像的宽和高graphics.PreferredBackBufferHeight = 800;graphics.PreferredBackBufferWidth = 480;Content.RootDirectory = "Content";// Frame rate is 30 fps by default for Windows Phone.TargetElapsedTime = TimeSpan.FromTicks(333333);// Extend battery life under lock.InactiveSleepTime = TimeSpan.FromSeconds(1);}/// <summary>/// 初始化/// </summary>protected override void Initialize(){// TODO: Add your initialization logic here//添加触摸事件TouchPanel.EnabledGestures = GestureType.Tap;base.Initialize();}/// <summary>/// 加载资源/// </summary>protected override void LoadContent(){//创建一个新的SpriteBatch用来绘制纹理spriteBatch = new SpriteBatch(GraphicsDevice);//加载纹理backgroundTexture = Content.Load<Texture2D>("GameScreenBackground");foregroundTexture = Content.Load<Texture2D>("GameScreenForeground");hudTexture = Content.Load<Texture2D>("HUDBackground");flowerMapTexture = Content.Load<Texture2D>("flowermap");//加载字体资源largeFont = Content.Load<SpriteFont>("LargeMenuFont");mediumFont = Content.Load<SpriteFont>("MediumMenuFont");smallFont = Content.Load<SpriteFont>("SmallMenuFont");//初始化列 InitializeColumns();beePicker = new BeePicker(Content, spriteBatch, System.DateTime.Now.Millisecond);}/// <summary>/// 初始化列/// </summary>private void InitializeColumns(){columns = new List<Column>();int seed = System.DateTime.Now.Millisecond;//初始化6列for (int i = 0; i < 5; i++){columns.Add(new Column(Content, spriteBatch, i * 92 + 22, seed + i));}}/// <summary>/// UnloadContent will be called once per game and is the place to unload/// all content./// </summary>protected override void UnloadContent(){// TODO: Unload any non ContentManager content here }/// <summary>/// Allows the game to run logic such as updating the world,/// checking for collisions, gathering input, and playing audio./// </summary>/// <param name="gameTime">Provides a snapshot of timing values.</param>protected override void Update(GameTime gameTime){// 退出游戏if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)this.Exit();// 添加更新的逻辑if (!gameOver){//处理用户的操作while (TouchPanel.IsGestureAvailable)//是否触摸到屏幕 {GestureSample gesture = TouchPanel.ReadGesture();//获取手势if (gesture.GestureType == GestureType.Tap)//点击操作 {HandleInput(gesture.Position);//传入点击的位置，处理点击操作 }}//更新花的状态，即不停地往下移动foreach (Column c in columns){c.Update();if (c.ReachedBottom)//花到达底部，游戏结束 {gameOver = true;break;}}}base.Update(gameTime);}/// <summary>/// 点击输入操作处理/// </summary>/// <param name="position"></param>private void HandleInput(Vector2 position){if (position.X > 0 && position.X < 480 && position.Y > 700 && position.Y < 800)//点种了蜜蜂的位置 HandleBeeSelection(position.X);else if (selectedBee != null)//选中了蜜蜂 HandleFlowerSelection(position.X, position.Y);}/// <summary>/// 处理选中花的操作/// </summary>/// <param name="x"></param>/// <param name="y"></param>private void HandleFlowerSelection(float x, float y){//判断是否点中了列的位置if (x > 10 && x < 470 && y > 100 && y < 700){int rainbowColor = 6;int selectedColumnIndex = (int)((x - 10) / 92);//获取点中的列Column selectedColumn = columns[selectedColumnIndex];//获取点中的列底部的花Flower selectedFlower = selectedColumn.GetBottomFlower();//判断是否点中了底部的花，并且花的颜色和蜜蜂的颜色要相等，或者花是彩色的花if(selectedFlower != null && (selectedFlower.Color == selectedBee.Color || selectedFlower.Color == rainbowColor)){//移除花 selectedColumn.RemoveBottomFlower();//替换另外一只蜜蜂，并且要保证至少要有一只蜜蜂可以和最底层的花可以匹配得上List<int> availableFlowers = GetAvailableFlowers();beePicker.RemoveAndReplaceBee(selectedBee, availableFlowers);//取消对蜜蜂的选中状态 beePicker.DeselectAll();selectedBee = null;//设置选中的蜜蜂为null//如果蜜蜂吃掉的是彩色的花则增加一分if (selectedFlower.Color == rainbowColor){score++;//如果分数达到10, 20, 30... 则不断地增加花下落的Y轴偏移量速度if ((score % 10) == 0){foreach (Column c in columns)c.Velocity += 0.1f;}}}}}/// <summary>/// 获取最底下花的颜色，用来作为随机生成蜜蜂的一个条件/// </summary>/// <returns></returns>private List<int> GetAvailableFlowers(){List<int> flowerColors = new List<int>();foreach (Column c in columns){Flower f = c.GetBottomFlower();if (f != null)flowerColors.Add(f.Color);}return flowerColors;}/// <summary>/// 处理选中蜜蜂操作/// </summary>/// <param name="x"></param>private void HandleBeeSelection(float x){//first de-select any previously selected beeif (selectedBee != null){selectedBee.IsSelected = false;selectedBee = null;}//Mark and select the new bee beePicker.MarkSelectedBee(x);selectedBee = beePicker.GetSelectedBee(x);}/// <summary>/// This is called when the game should draw itself./// </summary>/// <param name="gameTime">Provides a snapshot of timing values.</param>protected override void Draw(GameTime gameTime){GraphicsDevice.Clear(Color.CornflowerBlue);spriteBatch.Begin();//画游戏背景 spriteBatch.Draw(backgroundTexture, Vector2.Zero, Color.White);//判断游戏是否结束if (!gameOver){//绘制花精灵foreach (Column c in columns)c.Draw();//绘制蜜蜂精灵 beePicker.Draw();}else{spriteBatch.DrawString(largeFont, "GAME OVER", new Vector2(150, 400), Color.Red);}spriteBatch.Draw(foregroundTexture, Vector2.Zero, Color.White);DrawHUD();spriteBatch.End();base.Draw(gameTime);}/// <summary>/// 初始化屏幕/// </summary>private void DrawHUD(){spriteBatch.Draw(hudTexture, new Vector2(7, 7), Color.White);//Print out game score and levelspriteBatch.DrawString(mediumFont, "Marathon", new Vector2(40, 10), Color.Blue);spriteBatch.DrawString(largeFont, score.ToString(), new Vector2(127, 45), Color.Yellow);//TODO: Draw a flower on the HUDspriteBatch.Draw(flowerMapTexture, new Vector2(40, 45), new Rectangle(6*72, 0, 72, 72), Color.White, 0, Vector2.Zero, 0.5f, SpriteEffects.None, 0f);//Print out instructionsspriteBatch.DrawString(smallFont, "Match flowers and bees", new Vector2(210, 10), Color.Yellow);spriteBatch.DrawString(smallFont, "Rainbow flowers match", new Vector2(206, 30), Color.Yellow);spriteBatch.DrawString(smallFont, "with all bees", new Vector2(260, 50), Color.Yellow);//Print out goal messagespriteBatch.DrawString(largeFont, "Collect Rainbow Flowers", new Vector2(50, 115), Color.Blue);}} }
游戏的项目结构
参考文章：
http://blogs.msdn.com/b/tess/archive/2012/03/02/xna-for-windows-phone-walkthrough-creating-the-bizzy-bees-game.aspx