Can't figure out this NullReferenceException on a Texture2D

@Isaarh wrote:

Hi,

First of all thank you for stopping by and taking a look at my issue. I'm new to MonoGame and I have a hard time with this NullReferenceException, I have 3 files currently, Core, World and Sprite. My issue come from the third one at line 30 where I initialize my Texture2D. Here is my code:

Core.cs

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
namespace rpg
{
    public class Core : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;
        World world;

    public Core()
    {
        graphics = new GraphicsDeviceManager(this);
        Content.RootDirectory = "Content";
        IsMouseVisible = true;
    }

    protected override void Initialize()
    {
        // TODO: Add your initialization logic here
        world = new World();

        base.Initialize();
    }

    protected override void LoadContent()
    {
        Globals.content = this.Content;
        Globals.spriteBatch = new SpriteBatch(GraphicsDevice);

        // TODO: use this.Content to load your game content here
    }

    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
        world.Update();

        base.Update(gameTime);
    }

    protected override void Draw(GameTime gameTime)
    {
        GraphicsDevice.Clear(Color.CornflowerBlue);

        // TODO: Add your drawing code here
        Globals.spriteBatch.Begin();

        world.Draw();

        Globals.spriteBatch.End();

        base.Draw(gameTime);
    }
}
}

World.cs

using System;
using System.Collections.Generic;
using System.Text;
namespace rpg
{
    class World
    {
        Sprite sprite;
        public World()
    {
        sprite = new Sprite("Graphics/Sprites/player", 0, 0, 16, 25, 1, 0f);
    }

    public virtual void Update()
    {
        
    }

    public virtual void Draw()
    {
        sprite.Draw();
    }
}
}

Sprite.cs

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace rpg
{
    /// <summary>
    /// Draw a sprite on the world
    /// </summary>
    class Sprite
    {
        string path; 
        Texture2D texture;
        int posX, posY, width, height;
    float scale;
    Rectangle position;

    Vector2 origin;

    Color color;
    SpriteEffects spriteEffects;

    float layer;

    
    public Sprite(string cPath, int cPosX, int cPosY, int cWidth, int cHeight, float cScale, float cLayer)
    {
        // Initialize the sprite texture
        path = cPath;
        texture = Globals.content.Load<Texture2D>(path); // <= NullReferenceException

        // Initialize the sprite position and scale
        posX = cPosX;
        posY = cPosY;
        width = cWidth * (int)cScale;
        height = cHeight * (int)cScale;
        position = new Rectangle(posX, posY, width, height);

        // Set the origin to the middle of the sprite
        origin = new Vector2(texture.Bounds.Width / 2, texture.Bounds.Height / 2);


        color = Color.White;

        spriteEffects = new SpriteEffects();

        layer = cLayer;
    }

    public virtual void Draw()
    {
        if(texture != null)
        {
            Globals.spriteBatch.Draw(texture, position, null, color, 0f, origin, spriteEffects, layer);
        } 
    }
}
}

I have my image player in "/Graphics/Sprites/" and when I initialize and draw my sprite in Core.cs it works just fine.

Thank you !

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