【发布时间】：2016-03-19 04:07:57
【问题描述】：
我看到了与我所问的问题类似的问题，但它们并没有完全给出我正在寻找的答案。我希望我的精灵的 5 个实例显示在屏幕上并在不同的位置生成。出于某种原因，虽然不是 5 个实例，但精灵的每个“实例”都会增加确实出现在屏幕上的一个精灵的值。
Sprite.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
namespace Lab05_2__Aaron_Benjamin_
{
class Sprite
{
Texture2D mSpriteTexture;
public Vector2 Position;
Color mSpriteColor;
public Rectangle Size;
public string AssetName;
private float mScale = 1.0f;
public float Scale
{
get { return mScale; }
set
{
mScale = value;
//Recalculate the Size of the Sprite with the new scale
Size = new Rectangle(0, 0, (int)(mSpriteTexture.Width * Scale), (int)(mSpriteTexture.Height * Scale));
}
}
public void LoadContent(ContentManager theContentManager, string theAssetName)
{
mSpriteTexture = theContentManager.Load<Texture2D>(theAssetName);
AssetName = theAssetName;
Size = new Rectangle(0, 0, (int)(mSpriteTexture.Width * Scale), (int)(mSpriteTexture.Height * Scale));
}
public void Update(GameTime gameTime)
{
}
public void Draw(SpriteBatch theSpriteBatch)
{
theSpriteBatch.Draw(mSpriteTexture, Position,
new Rectangle(0, 0, mSpriteTexture.Width, mSpriteTexture.Height),
Color.White, 0.0f, Vector2.Zero, Scale, SpriteEffects.None, 0);
//theSpriteBatch.Draw(mSpriteTexture, Position);
}
}
}
敌人.cs
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Storage;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
namespace Lab05_2__Aaron_Benjamin_
{
class Enemy : Sprite
{
const string ENEMY_ASSETNAME = "gear";
Random Rand = new Random();
int startPos_X;
int startPos_Y;
public void LoadContent(ContentManager theContentManager)
{
Position = new Vector2(startPos_X = Rand.Next(0 , 1000), startPos_Y = Rand.Next(0, 1000)); //= Rand.Next(0, 100),Position.Y = Rand.Next(0,100));
base.LoadContent(theContentManager, ENEMY_ASSETNAME);
}
public void Update(GameTime gameTime)
{
MouseState cState = Mouse.GetState();
if (Position.X > cState.X)
{
Position.X += 1;
}
if (Position.X < cState.X)
{
Position.X -= 1;
}
if (Position.Y < cState.Y)
{
Position.Y -= 1;
}
if (Position.Y > cState.Y)
{
Position.Y += 1;
}
base.Update(gameTime);
}
}
}
Game1.cs
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
namespace Lab05_2__Aaron_Benjamin_
{
/// <summary>
/// This is the main type for your game.
/// </summary>
public class Game1 : Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
List<Enemy> enemies = new List<Enemy>();
private void CreateEnemy()
{
Enemy gear = new Enemy();
Random rand = new Random();
//gear = new Enemy();
//gear.Position.X = rand.Next(0, 1000);
//gear.Position.Y = rand.Next(0, 1000);
Console.WriteLine(gear.Position.Y);
enemies.Add(gear);
}
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
IsMouseVisible = true;
}
/// <summary>
/// Allows the game to perform any initialization it needs to before starting to run.
/// This is where it can query for any required services and load any non-graphic
/// related content. Calling base.Initialize will enumerate through any components
/// and initialize them as well.
/// </summary>
protected override void Initialize()
{
// TODO: Add your initialization logic here
base.Initialize();
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
// TODO: use this.Content to load your game content here
for (int i = 0; i < 5; i++)
{
CreateEnemy();
}
foreach (var cog in enemies)
{
cog.LoadContent(this.Content);
}
}
/// <summary>
/// UnloadContent will be called once per game and is the place to unload
/// game-specific 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)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
Exit();
// TODO: Add your update logic here
foreach (var cog in enemies)
{
if (cog.Position.X > Window.ClientBounds.Width - 50)
cog.Position.X = Window.ClientBounds.Width - 50;
if (cog.Position.Y > Window.ClientBounds.Height - 50)
cog.Position.Y = Window.ClientBounds.Height - 50;
if (cog.Position.X < 0)
cog.Position.X = 0;
if (cog.Position.Y < 0)
cog.Position.Y = 0;
}
foreach (var cog in enemies)
{
cog.Update(gameTime);
}
if (Keyboard.GetState().IsKeyDown(Keys.M))
{
// If 'm' is down, we create a new meteor. Note that once this is working
// this is going to make a lot of meteors. That's another issue, though.
CreateEnemy();
}
//Console.WriteLine(enemies.Count);
base.Update(gameTime);
}
/// <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.Black);
// TODO: Add your drawing code here
spriteBatch.Begin();
foreach (var cog in enemies)
{
cog.Draw(spriteBatch);
}
spriteBatch.End();
base.Draw(gameTime);
}
}
}
【问题讨论】：
标签： c# object sprite monogame multiple-instances