此方法不接受此参数的 null.但在我看来,纹理被编程为加载
本文关键字:纹理 编程 加载 在我看来 不接受 参数 null 此方法 | 更新日期: 2023-09-27 18:34:34
>我要为自己创建一个游戏来学习,但我遇到了一个问题,我真的不知道如何解决它。
错误是:
This method does not accept null for this parameter.
我已经搜索过,它告诉我我没有正确加载纹理,我想我做到了。因为它在绘制命令之前。
这是我的游戏1.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.Media;
namespace Eggt_Fast
{
/// <summary>
/// This is the main type for your game
/// </summary>
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Player player = new Player();
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferredBackBufferHeight = 600;
graphics.PreferredBackBufferWidth = 800;
this.Window.Title = "Eggt Fast";
graphics.ApplyChanges();
}
/// <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
}
/// <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)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
// TODO: Add your update logic here
player.Update(gameTime);
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.CornflowerBlue);
// TODO: Add your drawing code here
spriteBatch.Begin();
player.Draw(spriteBatch);
spriteBatch.End();
base.Draw(gameTime);
}
}
}
这是我的播放器.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;
using Microsoft.Xna.Framework.Input;
namespace Eggt_Fast
{
class Player
{
public Texture2D texture;
public Vector2 position;
public int speed;
public Rectangle boundingBox;
public bool isColliding;
public Player()
{
texture = null;
position = new Vector2(300, 300);
speed = 14;
isColliding = false;
}
public void LoadContent(ContentManager Content)
{
texture = Content.Load<Texture2D>("Player");
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(texture, position, Color.White); //THE ERROR IS HERE.
}
public void Update(GameTime gameTime)
{
}
}
}
我认为你的问题可能是你从不打电话给Player.LoadContent()
.由于您不从Game1.LoadContent()
调用此内容,因此永远不会加载纹理,这就是导致错误的原因。要解决您的问题,您可以尝试如下操作:
在游戏中1
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
player.LoadContent(Content);
}
这将在你的玩家职业中调用LoadContent
空白,我认为你最初的想法会自动发生。 LoadContent()
不会像 Game1 的LoadContent
那样自动调用,因为Player
只是一个常规类,不会像Game1
那样从其他类继承。