我正在开发乒乓球游戏,因为我是编程新手,所以我不知道如何访问另一个类变量。我有单独的类、绿色和蓝色 Racket 、一个球和 game1.cs。
我用 bool movingUp, movingLeft 控制球的移动;
它会从屏幕边框反弹,但我不知道如何使其与桨配合使用。基本上,我如何检查桨的位置,并使得当球接触桨时,它会弹开?我的意思是,如何检测碰撞?
public class Ball
{
ParticleEngine particleEngine;
GraphicsDeviceManager graphics;
Texture2D texture;
Vector2 position;
Boolean movingUp, movingLeft;
Vector2 origin;
public Ball()
{
position = new Vector2(800 / 2, 330);
}
public void LoadContent(ContentManager Content)
{
texture = Content.Load<Texture2D>("ball");
movingLeft = true;
//Particle Engine
List<Texture2D> textures = new List<Texture2D>();
textures.Add(Content.Load<Texture2D>("pixel"));
particleEngine = new ParticleEngine(textures, new Vector2(400, 240));
}
public void Update(GameTime gameTime)
{
float speed = 2.5f;
//Physics
if (movingUp)
{
position.Y -= 3;
}
if (movingLeft)
{
position.X -= 3;
}
if (!movingUp)
{
position.Y += 3;
}
if (!movingLeft)
{
position.X += 3;
}
if (position.X <= 0 && movingLeft) movingLeft = false;
if (position.Y <= 85 && movingUp) movingUp = false;
if (position.X >= 800 - texture.Width && !movingLeft) movingLeft = true;
if (position.Y >= 500 - texture.Height && !movingUp) movingUp = true;
origin = new Vector2(position.X + texture.Width / 2, position.Y + texture.Height / 2);
//Particles
particleEngine.EmitterLocation = new Vector2(origin.X, origin.Y);
particleEngine.Update();
}
public void Draw(SpriteBatch spriteBatch)
{
particleEngine.Draw(spriteBatch);
spriteBatch.Draw(texture, position, Color.White);
}
}
桨类之一(除了名称和移动键之外,它们看起来相同):
public class GreenPaddle
{
Texture2D texture;
Vector2 position;
float speed = 2f;
public GreenPaddle()
{
position = new Vector2(10, 230);
}
public void LoadContent(ContentManager Content)
{
texture = Content.Load<Texture2D>("greenpaddle");
}
public void Update(GameTime gameTime)
{
KeyboardState keyState = Keyboard.GetState();
//Check If Keys Are Pressed // Movement
if (keyState.IsKeyDown(Keys.W))
position.Y -= speed;
if (keyState.IsKeyDown(Keys.S))
position.Y += speed;
//Check Border
if (position.Y < 87)
{
position.Y = 87;
}
if (position.Y > 396)
{
position.Y = 396;
}
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(texture, position, Color.White);
}
}
预先感谢,我真的很想学习这样的东西:D
最佳答案
将您想要访问的变量声明为公共(public)变量,或创建 get 方法。
对于公共(public)变量,你会这样做:
public Vector2 Position;
要访问它,您可以调用:
Ball ball;
ball.Position
对于 get 方法实现:
public Vector2 getPosition()
{
return Position;
}
您将调用该方法来获取位置。
关于c# - 访问其他类变量,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17883303/