在单人游戏中绘制动画时遇到问题

本文关键字：遇到 问题 动画 绘制 单人 游戏 | 更新日期: 2023-09-27 17:52:12

我正在尝试创建一个具有多个动画(空闲，攻击，损坏等)的太空船但是当我试图改变动画时，我看到当前动画的第一帧在"旧"位置(动画最后一次被改变的地方)的瞬间

图片说明:https://i.stack.imgur.com/1BgNK.png

红色矩形应该是生命条

运行动画的类:

using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;
namespace Test
{
    class Animation
    {
        Texture2D spriteStrip;
        float scale;
        int elapsedTime;
        int frameTime;
        int frameCount;
        int currentFrame;
        Color color;
        // The area of the image strip we want to display
        Rectangle sourceRect = new Rectangle();    
        // The area where we want to display the image strip in the game
        Rectangle destinationRect = new Rectangle();
        public int FrameWidth;
        public int FrameHeight;
        public bool Active;
        public bool Looping;
        public Vector2 Position;    
        public void Initialize(Texture2D texture, Vector2 position, int frameWidth, int frameHeight, int frameCount, int frametime, Color color, float scale, bool looping)
        {
            this.color = color;
            this.FrameWidth = frameWidth;
            this.FrameHeight = frameHeight;
            this.frameCount = frameCount;
            this.frameTime = frametime;
            this.scale = scale;
            Looping = looping;
            Position = position;
            spriteStrip = texture;
            elapsedTime = 0;
            currentFrame = 0;
            Active = true;
        }
        public void Update(GameTime gameTime)
        {
            if (Active == false) return;
            elapsedTime += (int)gameTime.ElapsedGameTime.TotalMilliseconds;
            if (elapsedTime > frameTime)
            {
                currentFrame++;
                if (currentFrame == frameCount)
                {
                    currentFrame = 0;
                    if (Looping == false)
                        Active = false;
                }
                elapsedTime = 0;
            }
            sourceRect = new Rectangle(currentFrame * FrameWidth, 0, FrameWidth, FrameHeight);
            destinationRect = new Rectangle((int)Position.X - (int)(FrameWidth * scale) / 2, (int)Position.Y - (int)(FrameHeight * scale) / 2, (int)(FrameWidth * scale), (int)(FrameHeight * scale));
        }
        public void Draw(SpriteBatch spriteBatch)
        {
            if (Active)
            {
                spriteBatch.Draw(spriteStrip, destinationRect, sourceRect, color);
            }
        }
    }
}

我写整个代码的原因是因为我不知道问题在哪里。在我的Game1.cs类我有:

全局变量:

Texture2D playerTexture;
Texture2D playerShootingTexure;
Animation playerAnimation = new Animation();
Animation ShootingAnimation = new Animation();

…

protected override void LoadContent()
{
        spriteBatch = new SpriteBatch(GraphicsDevice);
        playerTexture = Content.Load<Texture2D>("Graphics/Player/PlayerShip");
        playerShootingTexure = Content.Load<Texture2D>("Graphics/Player/Player_Shooting");
        playerAnimation.Initialize(playerTexture, Vector2.Zero, playerTexture.Width / 5, playerTexture.Height, 5, 50, Color.Wheat, 1f, true);
        ShootingAnimation.Initialize(playerShootingTexure, Vector2.Zero, playerShootingTexure.Width / 5, playerShootingTexure.Height, 5, 50, Color.WhiteSmoke, 0.75f, true);
}

我改变动画的地方:

protected override void Draw(GameTime gameTime)
    {
        GraphicsDevice.Clear(Color.CornflowerBlue);
        // Start drawing
        spriteBatch.Begin();
        if (Player_Attacking == false)
        {
            player.PlayerAnimation = playerAnimation;
        }
        else
        {
            player.PlayerAnimation = ShootingAnimation;
        }
        player.Draw(spriteBatch);
        spriteBatch.End();
        base.Draw(gameTime);
    }

注意:player_attacks是一个布尔变量。当按下'Space'时，变量的值变为TRUE，当释放'Space'时，值变为FALSE

请帮忙!提前感谢!很抱歉有一大段文字

在单人游戏中绘制动画时遇到问题

我对确切的问题有点不清楚，所以如果我不理解，也许你可以帮助澄清。

但是根据你的图片，似乎当你按空格键射击时，玩家动画应该改变为用蓝色火焰照亮他的枪(或者它是:))，看起来它正在这样做，但它在错误的位置(在生命条上方-我看到它正在射击的激光在正确的位置:))

但一旦拍摄完成，它就会自我纠正，如第二张照片所示(不再有蓝色火焰)。

所以这意味着玩家射击的动画使用了错误的位置。

你:

  1. 在玩家更新中更新玩家射击动画的位置?
  2. 调用你的球员射击动画的Update在你的球员更新?

你应该在你的播放器Update

里有这个
PlayerAnimation.Position = Position;
PlayerAnimation.Update(gameTime);

同时，尝试在Game1.cs的Update中移动检查玩家动画:

protected override void Update(GameTime gameTime)
{
    if (Player_Attacking == false)
    {
        player.PlayerAnimation = playerAnimation;
    }
    else
    {
        player.PlayerAnimation = ShootingAnimation;
    }
    player.Update(gameTime);
}
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