当我自学c＃时，我一直在使用Monogame。我按照微软XNA教程检测了2d的碰撞。 Here
到目前为止，我在Monogame中所做的非常基本。有2个精灵。球员和煤炭纹理。当你开始游戏时煤炭出现在一个随机点，你可以移动玩家。我扩大了纹理。
Microsoft教程没有处理缩放问题，我想知道是否有办法通过碰撞检测方法获得我将纹理缩放的量。
这是我的代码。
这是Game1课程。碰撞检测方法位于底部。
#region Using Statements
using System;
using System.Collections.Generic;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Storage;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Input.Touch;
using System.Diagnostics;
#endregion
namespace Supersum
{
/// <summary>
/// This is the main type for your game
/// </summary>
public class Game1 : Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Player player;
Coal coal;
Random random;
KeyboardState currentKeyboardState;
KeyboardState previousKeyboardState;
GamePadState currentGamePadState;
GamePadState previousGamePadState;
float playerMoveSpeed;
public Game1()
: base()
{
graphics = new GraphicsDeviceManager(this);
graphics.PreferredBackBufferWidth = 800;
graphics.PreferredBackBufferHeight = 480;
graphics.ApplyChanges();
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
player = new Player();
coal = new Coal();
random = new Random();
playerMoveSpeed = 8.0f;
base.Initialize();
}
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
Vector2 playerPosition = new Vector2(GraphicsDevice.Viewport.TitleSafeArea.X, GraphicsDevice.Viewport.TitleSafeArea.Y + GraphicsDevice.Viewport.TitleSafeArea.Height / 2);
Vector2 coalPosition = new Vector2(random.Next(800), random.Next(480));
player.Initialize(Content.Load<Texture2D>("tempChar"), playerPosition);
coal.Initialize(Content.Load<Texture2D>("Coal"), coalPosition);
}
protected override void UnloadContent()
{
// TODO: Unload any non ContentManager content here
}
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
Exit();
previousGamePadState = currentGamePadState;
previousKeyboardState = currentKeyboardState;
currentKeyboardState = Keyboard.GetState();
currentGamePadState = GamePad.GetState(PlayerIndex.One);
UpdatePlayer(gameTime);
UpdateCollision();
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend, SamplerState.PointWrap, null, null, null);
coal.Draw(spriteBatch);
player.Draw(spriteBatch);
spriteBatch.End();
base.Draw(gameTime);
}
private void UpdatePlayer(GameTime gameTime)
{
if (currentKeyboardState.IsKeyDown(Keys.Left)||currentKeyboardState.IsKeyDown(Keys.A))
{
player.Position.X -= playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Right)||currentKeyboardState.IsKeyDown(Keys.D))
{
player.Position.X += playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Up)||currentKeyboardState.IsKeyDown(Keys.W))
{
player.Position.Y -= playerMoveSpeed;
}
if (currentKeyboardState.IsKeyDown(Keys.Down)||currentKeyboardState.IsKeyDown(Keys.S))
{
player.Position.Y += playerMoveSpeed;
}
}
private void UpdateCollision()
{
Rectangle rectangle1;
Rectangle rectangle2;
rectangle1 = new Rectangle((int)player.Position.X, (int)player.Position.Y, player.Width * 2, player.Height * 2);
rectangle2 = new Rectangle((int)coal.Position.X, (int)coal.Position.Y, coal.Width * 4, coal.Height * 4);
if (rectangle1.Intersects(rectangle2))
{
Console.Write("Intersected\n");
}
else {
Console.Write("Not Intersected\n");
}
}
}
}
这些是我的球员和煤炭的课程。
播放器
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace Supersum
{
class Player
{
public Texture2D PlayerTexture;
public Vector2 Position;
public bool Active;
public int Health;
public int Width
{
get { return PlayerTexture.Width; }
}
public int Height
{
get { return PlayerTexture.Height; }
}
public void Initialize(Texture2D texture, Vector2 position)
{
PlayerTexture = texture;
Position = position;
Active = true;
Health = 100;
}
public void Update()
{
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(PlayerTexture, Position, null, Color.White, 0f, Vector2.Zero, 2f, SpriteEffects.None, 0f);
}
}
}
现在煤炭
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
namespace Supersum
{
class Coal
{
public Texture2D coalTexture;
public Vector2 Position;
public int Width
{
get { return coalTexture.Width; }
}
public int Height
{
get { return coalTexture.Height; }
}
public void Initialize(Texture2D texture, Vector2 position)
{
coalTexture = texture;
Position = position;
}
public void Update()
{
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(coalTexture, Position, null, Color.White, 0f, Vector2.Zero, 4f, SpriteEffects.None, 0f);
}
}
}
答案 0 :(得分：0)
不要对你的音阶进行硬编码。
您应该向float scale;和class Player添加class Coal，然后在目前使用比例2的所有地方使用该成员4。
答案 1 :(得分：0)
为缩放创建一个私有字段，并在Draw和Height / Width中使用它。这样，您就不必在碰撞检测中使用任何缩放
class Coal
{
public Texture2D coalTexture;
public Vector2 Position;
private float scale = 4f;
public int Width
{
get { return coalTexture.Width * scale; }
}
public int Height
{
get { return coalTexture.Height * scale; }
}
[...]
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(coalTexture, Position, null, Color.White, 0f, Vector2.Zero, scale, SpriteEffects.None, 0f);
}
}
如果他们容易在多个地方进行更改和/或使用（通常在制作游戏时需要进行大量调整），您还可以创建一个包含所有比例的静态类：
public static class ScaleConstants
{
public static float Player = 2f;
public static float Coal = 4f;
}
哪会将来自（例如）return coalTexture.Width * scale;的调用更改为return coalTexture.Width * ScaleConstants.Coal;