So I have a code where the sprite spawn outside the window and I want it to move on a specific straight line depending on where it spawn say if the sprite spawn at the top it goes at the bottom and vise versa if the sprite then spawn to the left it will go right and vise versa.
Game1.cs code:
public class Game1 : Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Player player;
List<Enemy> enemies = new List<Enemy>();
public Vector2 ecords
{
get { return ecords; }
set { ecords = value; }
}
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
//player
Texture2D playertexture = Content.Load<Texture2D>("Player");
player = new Player(new Vector2(350, 175), playertexture);
//enemy
Texture2D enemytexture = Content.Load<Texture2D>("Enemy");
Random random = new Random();
var width = GraphicsDevice.Viewport.Width;
var height = GraphicsDevice.Viewport.Height;
for (int i = 0; i < 20; i++)
{
enemies.Add(new Enemy(new Vector2(random.Next(width, width + 100), random.Next(0, height)), enemytexture));
enemies.Add(new Enemy(new Vector2(random.Next(0 - 100, 0), random.Next(0, height)), enemytexture));
enemies.Add(new Enemy(new Vector2(random.Next(0, width), random.Next(-100, 0)), enemytexture));
enemies.Add(new Enemy(new Vector2(random.Next(0, width), random.Next(height, height + 100)), enemytexture));
}
}
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();
foreach (Enemy enemy in enemies)
{
enemy.Update(gameTime);
}
player.Update(gameTime);
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin();
foreach (Enemy enemy in enemies)
{
enemy.Draw(spriteBatch);
}
player.Draw(spriteBatch);
spriteBatch.End();
base.Draw(gameTime);
}
}
Enemy.cs
class Enemy
{
Texture2D enemytexture;
Vector2 enemyposition;
public Enemy(Vector2 enemyposition, Texture2D enemytexture)
{
this.enemyposition = enemyposition;
this.enemytexture = enemytexture;
}
public void Update(GameTime gameTime)
{
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(enemytexture, enemyposition, Color.White);
}
}
One option would be to add a velocity (or you can name it movement/direction) to Enemy, passed to the constructor in a parameter just like your existing enemyposition. Then update the current position by adding the velocity in the Update method of Enemy:
public void Update(GameTime gameTime)
{
this.enemyposition += this.velocity;
}
You can use unit vectors (optionally multiplied by speed) for the velocity value:
var (left, right) = (-Vector2.UnitX, Vector2.UnitX);
var (up, down) = (-Vector2.UnitY, Vector2.UnitY);
float enemySpeed = 5.0f;
enemies.Add(new Enemy(
new Vector2(random.Next(width, width + 100), random.Next(0, height)),
enemytexture, velocity: left * enemySpeed));
// etc.
Related
What am I doing wrong in this class? I'm using monogame and C# but my object won't render in the program.
class Player : Game
{
Texture2D PlayerSprite;
Vector2 PlayerPosition;
public Player()
{
Content.RootDirectory = "Content";
PlayerSprite = Content.Load<Texture2D>("spr_Player");
PlayerPosition = Vector2.Zero;
}
public void Update()
{
}
public void Draw(SpriteBatch SpriteBatch)
{
SpriteBatch.Begin();
SpriteBatch.Draw(PlayerSprite,PlayerPosition, new Rectangle(0, 0, 32,32), Color.White);
SpriteBatch.End();
}
}
The Load, Update, and Draw methods belong to the inherited Game class and are overrided by it.
You too need to start your SpriteBacth object.
GraphicsDevice object has exist in Game main class.
Try this:
class Player : Game
{
Texture2D PlayerSprite;
Vector2 PlayerPosition;
SpriteBatch spriteBatch;
public Player()
{
Content.RootDirectory = "Content";
PlayerSprite = Content.Load<Texture2D>("spr_Player");
PlayerPosition = Vector2.Zero;
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
}
protected override void Update(GameTime gameTime)
{
}
protected override void Draw(GameTime gameTime)
{
spriteBatch.Begin();
spriteBatch.Draw(PlayerSprite,PlayerPosition, new Rectangle(0, 0, 32,32), Color.White);
spriteBatch.End();
}
}
I'm Having a problem with an experiment of mine. I'm trying to make a method that fuses one Texture2D into another Texture2D, then reloads the Texture2D, this time moving the pasted texture in a new spot. I plan to perfect upon this method in later projects where I paste in a spotlight onto a dark background to "illuminate" the scenery behind it. While I managed to make the paste-to method work perfectly, I am having some major problems with the second part of my plan. I have the pasted texture set to a Vector2, where the X member increases by 1 every frame, thus dragging the pasted texture along the background. However, the background doesn't reset after each frame, leaving a drag mark on the background where the previous image was. For the last half hour I've been working to cure this problem by resetting the background texture to make it clean again for when it has the other image pasted onto it.
Here is my code.
namespace CopyTest
{
public class Image
{
public Texture2D Bitmap;
public Vector2 Position;
public String BitmapName;
public Rectangle Viewport;
public Color Tint = Color.White;
public void ResetViewportDimensions()
{
this.Viewport = new Rectangle(this.Viewport.X, this.Viewport.Y, Bitmap.Width, Bitmap.Height);
}
public void Draw(SpriteBatch Target)
{
}
public void FinalizeBitmap(ContentManager Target)
{
this.Bitmap = null;
this.Bitmap = Target.Load<Texture2D>(this.BitmapName);
}
public Image(Vector2 Position, String BitmapName)
{
this.BitmapName = BitmapName;
this.Position = Position;
}
}
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
public Image Rainbow = new Image(new Vector2(0, 0), "Rainbow");
public Image Eye = new Image(new Vector2(0, 0), "Glow");
public Image PrintOut = new Image(new Vector2(0, 0), "Rainbow");
public Vector2 Destination = new Vector2(100, 50);
public void PrintTo(Image Source, Image Target, Vector2 Location)
{
Color[] A = new Color[Source.Bitmap.Width * Source.Bitmap.Width];
Color[] B = new Color[Target.Bitmap.Width * Target.Bitmap.Width];
int Y = 0;
int X = 0;
Source.Bitmap.GetData(A);
Target.Bitmap.GetData(B);
for (int i = 0; i < A.Length; i++)
{
B[(int)Location.X + X + (((int)Location.Y + Y) * Target.Bitmap.Width)] = A[i];
X++;
if (X == Source.Bitmap.Width)
{
X = 0;
Y++;
}
}
Target.Bitmap.SetData<Color>(B);
}
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
Eye.FinalizeBitmap(Content);
Rainbow.FinalizeBitmap(Content);
PrintOut.FinalizeBitmap(Content);
Eye.ResetViewportDimensions();
Rainbow.ResetViewportDimensions();
PrintOut.ResetViewportDimensions();
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
GraphicsDevice.Textures[0] = null;
PrintOut.FinalizeBitmap(Content);
PrintTo(Eye, PrintOut, Destination);
Destination.Y++;
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin();
spriteBatch.Draw(PrintOut.Bitmap, PrintOut.Position, PrintOut.Viewport, PrintOut.Tint);
spriteBatch.End();
base.Draw(gameTime);
}
}
Any help at all would be greatly appreciated.
The problem is that it just shows a black screen and the loading mouse. It doesn't show the loading screen or the menu.
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
SpriteBatch mBatch;
Texture2D mTheQuantumBros2;
MenuComponent menuComponent;
public static Rectangle screen;
public static string GameState = "Menu";
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferMultiSampling = false;
graphics.IsFullScreen = true;
graphics.PreferredBackBufferWidth = 1366;
graphics.PreferredBackBufferHeight = 768;
graphics.ApplyChanges();
}
protected override void Initialize()
{
// TODO: Add your initialization logic here
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
mBatch = new SpriteBatch(this.graphics.GraphicsDevice);
ContentManager aLoader = new ContentManager(this.Services);
aLoader.RootDirectory = "Content";
mTheQuantumBros2 = aLoader.Load<Texture2D>("TheQuantumBros2") as Texture2D;
menuComponent.LoadContent(Content);
}
protected override void UnloadContent()
{
}
/// <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)
this.Exit();
switch (GameState)
{
case "Menu":
menuComponent.Update(gameTime);
break;
}
base.Update(gameTime);
}
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin();
switch (GameState)
{
case "Menu":
menuComponent.Draw(spriteBatch);
break;
}
base.Draw(gameTime);
}
}
Other class:
class MenuComponent
{
KeyboardState keyboard;
KeyboardState prevKeyboard;
SpriteBatch mBatch;
Texture2D mTheQuantumBros2;
GameTime gameTime;
MouseState mouse;
MouseState prevMouse;
SpriteFont spriteFont;
List<string> buttonList = new List<string>();
int selected = 0;
public MenuComponent()
{
buttonList.Add("Campaign");
buttonList.Add("Multiplayer");
buttonList.Add("Zombies");
buttonList.Add("Quit Game");
}
public void LoadContent(ContentManager Content)
{
spriteFont = Content.Load<SpriteFont>("Font");
}
public void Update(GameTime gameTime)
{
keyboard = Keyboard.GetState();
mouse = Mouse.GetState();
if (CheckKeyboard(Keys.Up))
{
if (selected > 0) selected--;
}
if (CheckKeyboard(Keys.Down))
{
if (selected < buttonList.Count - 1) selected++;
}
prevMouse = mouse;
prevKeyboard = keyboard;
}
public bool CheckMouse()
{
return (mouse.LeftButton == ButtonState.Pressed && prevMouse.LeftButton == ButtonState.Released);
}
public bool CheckKeyboard(Keys key)
{
return (keyboard.IsKeyDown(key) && prevKeyboard.IsKeyDown(key));
}
public void Draw(SpriteBatch spriteBatch)
{
Color color;
int linePadding = 3;
spriteBatch.Begin();
mBatch.Begin();
mBatch.Draw(mTheQuantumBros2, new Rectangle(300, 150, mTheQuantumBros2.Width, mTheQuantumBros2.Height), Color.White);
if (gameTime.TotalGameTime.TotalSeconds <= 3)
{
mBatch.End();
for (int i = 0; i < buttonList.Count; i++)
{
color = (i == selected) ? Color.LawnGreen : Color.Gold;
spriteBatch.DrawString(spriteFont, buttonList[i], new Vector2((Game1.screen.Width / 2) - (spriteFont.MeasureString(buttonList[i]).X / 2), (Game1.screen.Height / 2) - (spriteFont.LineSpacing * (buttonList.Count) / 2) + ((spriteFont.LineSpacing + linePadding) * i)), color);
}
spriteBatch.End();
}
}
}
What is the purpose of this statement: (gameTime.TotalGameTime.TotalSeconds <= 3)?
Also, you are never updating the game time in the menu component. So, the aforementioned code would behave unexpectedly.
You are also calling spriteBatch.Begin() twice before end is called... So that should be giving you an error. Check those for issues.
EDIT: Since you are only calling spriteBatch.End() IF less than 3 seconds have passed, it will never be called again after that? I think.
As a potential fix... I would try only calling spriteBatch.Begin() and spriteBatch.End() inside of game1.cs. So:
//In your menu class
public void Draw(SpriteBatch spriteBatch)
{
Color color;
int linePadding = 3;
if (gameTime.TotalGameTime.TotalSeconds <= 3)
{
mBatch.Begin();
mBatch.Draw(mTheQuantumBros2, new Rectangle(300, 150, mTheQuantumBros2.Width, mTheQuantumBros2.Height), Color.White);
mBatch.End();
}
else
{
for (int i = 0; i < buttonList.Count; i++)
{
color = (i == selected) ? Color.LawnGreen : Color.Gold;
spriteBatch.DrawString(spriteFont, buttonList[i], new Vector2((Game1.screen.Width / 2) - (spriteFont.MeasureString(buttonList[i]).X / 2), (Game1.screen.Height / 2) - (spriteFont.LineSpacing * (buttonList.Count) / 2) + ((spriteFont.LineSpacing + linePadding) * i)), color);
}
}
}
And back in game1.cs, call spriteBatch.End() right before base.Draw() is called.
In general, it is best to only use one spriteBatch, I believe it is simply faster than beginning and ending two different batches.
EDIT 2:
Just uhm... copy and paste I guess. It works fine after the adjustments I made (you can read about them at the bottom).
You're refactored code:
game1.cs:
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
MenuComponent menuComponent;
public static Rectangle screen;
public static string GameState = "Menu";
public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
graphics.PreferMultiSampling = false;
//graphics.IsFullScreen = true;
graphics.PreferredBackBufferWidth = 1366;
graphics.PreferredBackBufferHeight = 768;
graphics.ApplyChanges();
}
protected override void Initialize()
{
base.Initialize();
}
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
menuComponent = new MenuComponent();
menuComponent.LoadContent(Content, graphics.GraphicsDevice.Viewport.Width, graphics.GraphicsDevice.Viewport.Height);
}
protected override void UnloadContent()
{
}
/// <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)
this.Exit();
switch (GameState)
{
case "Menu":
menuComponent.Update(gameTime);
break;
}
base.Update(gameTime);
}
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin();
switch (GameState)
{
case "Menu":
menuComponent.Draw(spriteBatch, gameTime);
break;
}
spriteBatch.End();
base.Draw(gameTime);
}
MenuComponent:
KeyboardState keyboard;
KeyboardState prevKeyboard;
MouseState mouse;
MouseState prevMouse;
GraphicsDevice graphicsDevice;
Texture2D mTheQuantumBros2;
SpriteFont spriteFont;
List<string> buttonList = new List<string>();
int selected = 0;
int screenWidth;
int screenHeight;
public MenuComponent()
{
buttonList.Add("Campaign");
buttonList.Add("Multiplayer");
buttonList.Add("Zombies");
buttonList.Add("Quit Game");
}
public void LoadContent(ContentManager Content, int _screenWidth, int _screenHeight)
{
spriteFont = Content.Load<SpriteFont>("Font");
mTheQuantumBros2 = Content.Load<Texture2D>("TheQuantumBros2");
screenHeight = _screenHeight;
screenWidth = _screenWidth;
}
public void Update(GameTime gameTime)
{
keyboard = Keyboard.GetState();
mouse = Mouse.GetState();
if (CheckKeyboard(Keys.Up))
{
if (selected > 0) selected--;
}
if (CheckKeyboard(Keys.Down))
{
if (selected < buttonList.Count - 1) selected++;
}
prevMouse = mouse;
prevKeyboard = keyboard;
}
public bool CheckMouse()
{
return (mouse.LeftButton == ButtonState.Pressed && prevMouse.LeftButton == ButtonState.Released);
}
public bool CheckKeyboard(Keys key)
{
return (keyboard.IsKeyDown(key) && prevKeyboard.IsKeyDown(key));
}
public void Draw(SpriteBatch spriteBatch, GameTime gameTime)
{
Color color;
int linePadding = 3;
if (gameTime.TotalGameTime.TotalSeconds <= 3)
{
spriteBatch.Draw(mTheQuantumBros2, new Rectangle(300, 150, mTheQuantumBros2.Width, mTheQuantumBros2.Height), Color.White);
}
else
{
for (int i = 0; i < buttonList.Count; i++)
{
color = (i == selected) ? Color.LawnGreen : Color.Gold;
spriteBatch.DrawString(spriteFont, buttonList[i], new Vector2((screenWidth / 2) - (spriteFont.MeasureString(buttonList[i]).X / 2), (screenHeight / 2) - (spriteFont.LineSpacing * (buttonList.Count) / 2) + ((spriteFont.LineSpacing + linePadding) * i)), color);
}
}
}
There were a bunch of little issues. For example, you were setting the menuComp = to a new menu component on every update call, so all the old variables in there would be lost, hence there was no images loading. SpriteBatch.Begin() was being called twice in a row, and then end was being called twice in a row. One spriteBatch (from game1.cs preferrably) should be used to draw. By sending that spritebatch through the method, you do not need to call begin again, and it is simply better not to for performance reasons. Last thing I noticed (that I can think of) was that the graphics device was not being set to anything because you were constantly creating a new version of it. Oh also, you were calling graphicsDevice.Clear() way too early, this only should be called once per draw (at the beginning, so old graphical info is removed from the screen).
I debugged your program/code and there are a few problems:
There is a declaration of MenuComponent menuComponent, but you didn't create an instance in the Game1() constructor. So add: menuComponent = new MenuComponent()
There is a declaration of SpriteBatch mBatch, but you didn't create an instance in the MenuComponent() constructor. So create one. The same for GameTime gameTime variable.
At the moment I don't have SpriteFont and TheQuantumBros2 texture. Is it possible that you upload your project and share it?
I am getting an error message in this line:
player = new Player(this.Content.Load<Texture2D>("Player"),
actor.position,
this.spriteBatch,
enemyManager);
which tells me the actor object is null. How can I overcome this situation?
The exact error is:
Field Shmup.MyGame.actor is never assigned to, and will always have its default value null.
Here is my code:
class MyGame // [edit:] added based on below constructor
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Player player;
EnemyManager enemyManager;
Actor actor;
public MyGame()
{
graphics = new GraphicsDeviceManager(this);
IsMouseVisible = true;
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
// TODO: Add your initialization logic here
base.Initialize();
}
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
startTheGame();
}
protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
this.player.Update(gameTime);
this.enemyManager.Update(gameTime);
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Maroon);
this.spriteBatch.Begin();
this.player.Draw(gameTime);
this.enemyManager.Draw(gameTime);
this.spriteBatch.End();
base.Draw(gameTime);
}
void startTheGame()
{
enemyManager = new EnemyManager(this.Content.Load<Texture2D>("Enemy"), new Vector2(16), this.spriteBatch);
player = new Player(this.Content.Load<Texture2D>("Player"),actor.position, this.spriteBatch, enemyManager);
enemyManager.StartTheGame(10);
}
}
public class Actor
{
public Texture2D texture;
public Vector2 origin;
public SpriteBatch spriteBatch;
public Vector2 position;
public Rectangle boundingRectangle;
public Vector2 Position
{
get { return position; }
set
{
position = value;
boundingRectangle = new Rectangle((Int32)(position.X - origin.X), (Int32)(position.Y - origin.Y), texture.Width, texture.Height);
}
}
public Rectangle BoundingRectangle
{
get { return boundingRectangle; }
}
public Actor(Texture2D texture, Vector2 origin, SpriteBatch spriteBatch, Vector2 initialPosition)
{
this.texture = texture;
this.origin = origin;
this.spriteBatch = spriteBatch;
this.position = initialPosition;
boundingRectangle = new Rectangle((Int32)(initialPosition.X - origin.X), (Int32)(initialPosition.Y - origin.Y), texture.Width, texture.Height);
}
public virtual void Update(GameTime gameTime)
{ }
public virtual void Draw(GameTime gameTime)
{
this.spriteBatch.Draw(texture, position - origin, Color.White);
}
}
Like error says, you need to create an instance of Actor class.
In game constructor or in startTheGame Method(before creating an instance of Player class) you should create an instance of Actor class, something like :
this.actor = new Actor(variables...);
I am getting an error when I try to get the mouse position.
This is my player class. I am trying to make the player sprite move by mouse cursor
class Player : Actor
{
public MouseState mState;
EnemyManager enemyManager;
public Player(Texture2D texture, Vector2 origin, SpriteBatch spriteBatch, EnemyManager enemyManager)
: base(texture, origin, spriteBatch, new Vector2(250.0f, 516.0f))
{
this.enemyManager = enemyManager;
}
public override void Update(GameTime gameTime)
{
//KeyboardState keyboardState = Keyboard.GetState();
//if (keyboardState.IsKeyDown(Keys.Left))
//{
// if (this.Position.X > 32.0f)
// {
// this.Position -= 10.0f * Vector2.UnitX;
// }
//}
//if (keyboardState.IsKeyDown(Keys.Right))
//{
// if (this.Position.X < 748.0f)
// {
// this.Position += 10.0f * Vector2.UnitX;
// }
//}
MouseState mState = Mouse.GetState();
this.Position = new Vector2(mState.x, mState.y);
// Collisions...
foreach (Enemy e in this.enemyManager.Enemies)
{
if (this.BoundingRectangle.Intersects(e.BoundingRectangle))
{
e.OnHit();
break;
}
}
base.Update(gameTime);
}
}
and this is my Actor class which has position variables
namespace Shmup
{
public class Actor
{
public Texture2D texture;
public Vector2 origin;
public SpriteBatch spriteBatch;
public Vector2 position;
public Rectangle boundingRectangle;
public Vector2 Position
{
get { return position; }
set { position = value; }
}
public Rectangle BoundingRectangle
{
get { return boundingRectangle; }
}
public Actor(Texture2D texture, Vector2 origin, SpriteBatch spriteBatch, Vector2 initialPosition)
{
this.texture = texture;
this.origin = origin;
this.spriteBatch = spriteBatch;
this.position = initialPosition;
boundingRectangle = new Rectangle((Int32)(initialPosition.X - origin.X), (Int32)(initialPosition.Y - origin.Y), texture.Width, texture.Height);
}
public virtual void Update(GameTime gameTime)
{
}
public virtual void Draw(GameTime gameTime)
{
this.spriteBatch.Draw(texture, position - origin, Color.White);
}
}
}
my main class
public class MyGame : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Player player;
EnemyManager enemyManager;
Actor actor;
public MyGame()
{
graphics = new GraphicsDeviceManager(this);
IsMouseVisible = true;
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
// TODO: Add your initialization logic here
Actor actor = new Actor();
base.Initialize();
}
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
startTheGame();
}
protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
{
this.Exit();
}
this.player.Update(gameTime);
this.enemyManager.Update(gameTime);
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.Maroon);
this.spriteBatch.Begin();
this.player.Draw(gameTime);
this.enemyManager.Draw(gameTime);
this.spriteBatch.End();
base.Draw(gameTime);
}
void startTheGame()
{
enemyManager = new EnemyManager(this.Content.Load<Texture2D>("Enemy"), new Vector2(16), this.spriteBatch);
player = new Player(this.Content.Load<Texture2D>("Player"),actor.position, this.spriteBatch, enemyManager);
enemyManager.StartTheGame(10);
}
}
This line is the problem I think:
this.Position = new Vector2(mState.x, mState.y);
x and y are not publicly exposed on MouseState. You need to capitalize them (C# is case-sensitive). Use this instead:
this.Position = new Vector2(mState.X, mState.Y);
"making these changes gives me a different error Object reference not set to an instance of an object in the line player = new Player(this.Content.Load("Player"),actor.position, this.spriteBatch, enemyManager); on my main class it says Error 'Shmup.Actor' does not contain a constructor that takes 0 arguments –"
The constructor for Actor requires - Texture2D texture, Vector2 origin, SpriteBatch spriteBatch, Vector2 initialPosition .
So you would need to change the "Actor actor = new Actor();" into LoadContent() or a separate method after you have supplied all the information required to declare a new Actor.
It should read something along these lines(replace each argument with the proper item from your game class):
Actor actor = new Actor( texture, origin, spriteBatch, initialPosition);
If you do that it will fix the error, If you don't you will continue to get the error unless you define a constructor in Actor that takes 0 arguments. Hope this helps somewhat.