multiple sprites for one character

January 31, 2009 by admin
Filed under: Xbox360 News

I will try and explain this the best i can. But basically i have a sprite which puts a fighter on my screen, and when the forward and back keys are pushed, it walks. Now i want to make this same character jump. This is where i load in my sprite and get the values of each specific sprite

protected override void Initialize()

{

spriteBatch = new SpriteBatch(graphics.GraphicsDevice);

graphics.PreferredBackBufferWidth = GameConstants.ScreenWidth;

graphics.PreferredBackBufferHeight = GameConstants.ScreenHeight;

graphics.IsFullScreen = false;

graphics.ApplyChanges();

Window.Title = "UltimateFighter — Coursework 3";

walking.Initialize(0, 450, 6f, 130);

walking.Add(3, 10, 134, 212);

walking.Add(132, 10, 148, 212);

walking.Add(280, 10, 141, 212);

walking.Add(420, 10, 120, 212);

walking.Add(543, 10, 118, 212);

walking.Add(660, 10, 124, 212);

graphics.SynchronizeWithVerticalRetrace = false;

IsFixedTimeStep = false;

base.Initialize();

this.IsFixedTimeStep = false;

}

protected override void LoadContent()

{

spriteSheet = content.Load<Texture2D>("Content/sprites/kenWalk");

backgroundTexture = Content.Load<Texture2D>("Content/background");

}

Now the problem is, if i now load in the jumping sprite, and find the location of each induvidual sprite, that would just put 2 characters on my screen. One which walks and one which jumps. This is the code i use to make it walk

#region Using Statements

using System;

using System.Collections;

using System.Collections.Generic;

using Microsoft.Xna.Framework;

using Microsoft.Xna.Framework.Audio;

using Microsoft.Xna.Framework.Content;

using Microsoft.Xna.Framework.Graphics;

using Microsoft.Xna.Framework.Input;

using Microsoft.Xna.Framework.Storage;

using UltimateFighter;

#endregion

namespace Ultimate_Fighter

{

class AnimatedSprite

{

public ArrayList sprites = new ArrayList();

public int counter = 0;

public float frameTimer = 0f;

protected float width;

protected float speed = 6;

protected Vector2 direction;

protected Vector2 origin;

protected Vector2 position = Vector2.Zero;

protected SpriteEffects effects;

public void Initialize(int x, int y, float Speed, float Width)

{

direction.X = -1f;

direction.Y = 0f;

origin.X = 0;

origin.Y = 0;

position.X = x;

position.Y = y;

speed = Speed;

width = Width;

}

float frameDistance = 0;

public void Update(GameTime gameTime)

{

// Get the game pad state.

GamePadState joyState = GamePad.GetState(PlayerIndex.One);

// get keyboard state

KeyboardState keyState = Keyboard.GetState();

float timeDelta = (float)gameTime.ElapsedGameTime.TotalSeconds;

if (joyState.DPad.Right == ButtonState.Pressed || keyState.IsKeyDown(Keys.Right))

{

// if (effects == SpriteEffects.None) effects = SpriteEffects.FlipHorizontally;

if (direction.X == -1) direction.X = 1;

Walk();

}

if (joyState.DPad.Left == ButtonState.Pressed || keyState.IsKeyDown(Keys.Left))

{

// if (effects == SpriteEffects.FlipHorizontally) effects = SpriteEffects.None;

if (direction.X == 1) direction.X = -1;

Walk();

}

public void Add(int x, int y, int width, int height)

{

sprites.Add(new Rectangle(x, y, width, height));

}

public void Walk()

{

position.X += direction.X * speed;

position.Y += direction.Y * speed;

// if sprite goes off left, keep it on screen

if (position.X < 0) position.X = 0;

// if sprite goes off right, keep it on screen

if (position.X > GameConstants.ScreenWidth - width)

position.X = GameConstants.ScreenWidth - width;

// increment frame distance

frameDistance += GameConstants.frameInc;

// if its over threshold

if (frameDistance >= GameConstants.frameThreshold)

{ // reset to 0

frameDistance = 0f;

// increment the sprite counter

counter++;

// keep the counter in the range 0 - sprites.Count

counter = counter % sprites.Count;

}

public void Draw(SpriteBatch spriteBatch, Texture2D spriteSheet)

{

spriteBatch.Draw(spriteSheet, position, ((Rectangle)sprites[counter]), Color.White, 0f, origin, 1f,

effects, 0f);

}

Now that is what my instance is too when i do walking.Add in the first code snipplet. For my jumping, i have created a class exactly the same as the one above, but am doing it for the up key pushed instead. But how would i get all the sprites to be on just one character, rather than having several characters on my screen each performing a different action. I cannot find any tutorials on this at all. They all show how to perform one animation on one sprite. Any advise at all would be great. I am trying my hardest to work on this as i am now extremely addicted and cannot put it down!
cheers

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