我正在使用 XNA 4.0 在 c# 中制作一个小游戏。我已经成功地让我的精灵向各个方向移动，并使它看起来像实际上是在使用数组行走。到目前为止，我只用“向上”键对此进行了测试。问题是，当我按下向上键时，精灵会移动，但它通过数组中的所有元素的速度非常快，以至于看起来他正在为他要去的空间量快速奔跑。有什么办法可以减慢纹理相互间变化的速度，比如暂停方法什么的。感谢您提供任何帮助，谢谢。
namespace RandomGame
{
public class Game1 : Microsoft.Xna.Framework.Game
{
GraphicsDeviceManager graphics;
SpriteBatch spriteBatch;
Color backColor = Color.FromNonPremultiplied(190, 230, 248, 250);
int i = 0;
public Game1()
{
graphics = new GraphicsDeviceManager(this);
graphics.IsFullScreen = false;
graphics.PreferredBackBufferHeight = 500;
graphics.PreferredBackBufferWidth = 800;
Content.RootDirectory = "Content";
}
protected override void Initialize()
{
base.Initialize();
}
Texture2D[] UpTextures = new Texture2D[6];
Texture2D startTexture;
Texture2D leftTexture;
Texture2D rightTexture;
Vector2 position = new Vector2(380, 230);
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
startTexture = Content.Load<Texture2D>("BlueLinkStart");
leftTexture = Content.Load<Texture2D>("BlueLinkLeft");
rightTexture = Content.Load<Texture2D>("BlueLinkRight");
UpTextures[0] = Content.Load<Texture2D>("BlueLinkUp");
UpTextures[1] = Content.Load<Texture2D>("BlueLinkUp2");
UpTextures[2] = Content.Load<Texture2D>("BlueLinkUp3");
UpTextures[3] = Content.Load<Texture2D>("BlueLinkUp4");
UpTextures[4] = Content.Load<Texture2D>("BlueLinkUp5");
UpTextures[5] = Content.Load<Texture2D>("BlueLinkUp6");
}
protected override void UnloadContent()
{
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Escape))
{
this.Exit();
}
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Left) && position.X > -3)
{
position.X -= 2;
}
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Right) && position.X < 772)
{
position.X += 2;
}
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Up) && position.Y > -3)
{
position.Y -= 2;
}
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Down) && position.Y < 472)
{
position.Y += 2;
}
base.Update(gameTime);
}
protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.FromNonPremultiplied(188, 231, 241, 255));
if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Left))
{
spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);
spriteBatch.Draw(leftTexture, position, Color.White);
spriteBatch.End();
base.Draw(gameTime);
}
else if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Right))
{
spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);
spriteBatch.Draw(rightTexture, position, Color.White);
spriteBatch.End();
base.Draw(gameTime);
}
else if (Keyboard.GetState(PlayerIndex.One).IsKeyDown(Keys.Up))
{
spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);
spriteBatch.Draw(UpTextures[i], position, Color.White);
spriteBatch.End();
i++;
if (i == 6) { i = 0; }
base.Draw(gameTime);
}
else
{
spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);
spriteBatch.Draw(startTexture, position, Color.White);
spriteBatch.End();
base.Draw(gameTime);
}
}
}
}