Falling particles help

[dialgarocksful]

Anyways, without the use of engines I'm trying to create a snow effect in XNA. I'm definitely sure I'm doing something wrong since I'm targeting for a 100-count array and it only produces 10 (including updates). Here's my file and looking for some help in displaying all 100 in timed manner:

 

public class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        Texture2D snowTex;
        Rectangle[] snowRect;
        int[] randX;
        int posY, ctr, arrayCtr;
        Random rnd;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
            graphics.PreferredBackBufferHeight = 768;
            graphics.PreferredBackBufferWidth = 1366;
            IsMouseVisible = true;
        }
        protected override void Initialize()
        {
            snowRect = new Rectangle[100];
            randX = new int[100];
            ctr = 0;
            arrayCtr = 0;
            rnd = new Random();
            posY = -5;
            for (int q = 0; q < snowRect.Length; q++)
            {
                randX[q] = rnd.Next(0, 1366);
            }

            base.Initialize();
        }
        
        protected override void LoadContent()
        {
           
            spriteBatch = new SpriteBatch(GraphicsDevice);
            snowTex = Content.Load<Texture2D>(@"Snow");
        }
        
        protected override void UnloadContent()
        {
            
        }

        
        protected override void Update(GameTime gameTime)
        {
            if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                Exit();

            posY++;
            ctr++;

            for (arrayCtr = 0; arrayCtr < 100;)
            {
                if (ctr == 120) // TRIGGERS A NEW SET OF SNOW PARTICLES EVERY 2 SECONDS
                {
                    ctr = 0;

                    for (int q = 0; q < 10; q++)
                    {
                        randX[q] = rnd.Next(0, 1366); // RANDOMIZES NEW RANDOM X POSITIONS
                    }
                }

                arrayCtr += 10;

            }


            for (int q = 0; q < 100; q++)
            {
                snowRect[q] = new Rectangle(randX[q], posY, 10, 10);

                if (snowRect[q].Y > 770) //IF SNOW[Q] GOES PAST GRAPHICS WIDTH
                {
                    posY = -5;
                }
            }

            base.Update(gameTime);
        }

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

            spriteBatch.Begin();
            for (int x = 0; x < 100;)
            {
                for (int y = 0; y < 10; y++)
                {
                    spriteBatch.Draw(snowTex, snowRect[y], Color.White);
                }
                x += 10;
            }
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }

 

[fizzlesticks]

23 minutes ago, dialgarocksful said:

 

for (int x = 0; x < 100;)
{
  for (int y = 0; y < 10; y++)
  {
  	spriteBatch.Draw(snowTex, snowRect[y], Color.White);
  }
  x += 10;
}
  

 

You're calling draw on the first 10 items in the array 10 times each. 

[dialgarocksful]

1 minute ago, fizzlesticks said:

You're calling draw on the first 10 items in the array 10 times each. 

how should i do it? any recommendations you have?

[fizzlesticks]

1 minute ago, dialgarocksful said:

how should i do it? any recommendations you have?

Use a single loop that goes from 0 to 100. You're breaking things up into batches of 10 but doing the same thing to every element anyway.

[dialgarocksful]

1 minute ago, fizzlesticks said:

Use a single loop that goes from 0 to 100. You're breaking things up into batches of 10 but doing the same thing to every element anyway.

it gave me a single line of 100 textures. Now, how do I fix this particles into batches of 10 or <insert number here> per instance?

[fjdhdhcyfhf]

why do you want to break into batches of ten?

why arent you doing this in the gpu?

[dialgarocksful]

2 minutes ago, SCHISCHKA said:

why do you want to break into batches of ten?

why arent you doing this in the gpu?

trying to create a batch-of-10 snow drop every 2 seconds in a random x position.

 

what gpu?

[fjdhdhcyfhf]

3 minutes ago, dialgarocksful said:

what gpu?

hlsl programming

 

[dialgarocksful]

2 minutes ago, SCHISCHKA said:

hlsl programming

 

i cant do that yet. I'm only limited to 2D games, so most likely the particles the player will be seeing is just a 4x4 pixel snow image that spawns from top to bottom in batches of 10

[dialgarocksful]

Anyways, I found the answer. Turns out, I also need to set the Y-position in the Update method

 

protected override void Update(GameTime gameTime)
{
            
	for (arrayCtr = 0; arrayCtr < snowRect.Length; arrayCtr++)
	{
		randY[arrayCtr]++;
        if (snowRect[arrayCtr].Y > 770) 
        {
			randX[arrayCtr] = rnd.Next(0, 1366);
			randY[arrayCtr] = -5;
        }
        snowRect[arrayCtr] = new Rectangle(randX[arrayCtr], randY[arrayCtr], 10, 10);
    }

    base.Update(gameTime);
}