我是 XNA 和 C# 的新手(我是 2 天前开始的,所以请原谅马虎的编程),我在制作一个简单的游戏时遇到了问题。我似乎无法在任何在线教程中找到解决方案。我正在尝试使用矩形碰撞检测,但我无法让它正常工作。角色完全从地板上掉下来,似乎在任何地方都没有发生过碰撞。我在这里找不到我的逻辑错误。下面我发布了一些与碰撞检测有关的代码。如有需要,我可以发布更多。提前感谢您的帮助!
级别.cs
//The method below is called in the initial LoadContent method in Game1.cs. 'LoadBlocks()' is supposed to read in a text file and setup the level's "blocks" (the floor or platforms in the game).
public void LoadBlocks(int level){
if (level == 0)
{
fileName = "filepath";
}
System.IO.StreamReader file = new System.IO.StreamReader(fileName);
while ((line = file.ReadLine()) != null)
{
for (int i = 0; i < 35; i++)
{
rectBlock = new Rectangle((int)positionBlock.X, (int)positionBlock.Y, width / 30, height / 30);
if (line.Substring(i, 1).Equals(","))
{
positionBlock.X += (width / 100) * 24;
}
if (line.Substring(i, 1).Equals("#"))
{ //block -> (bool isPassable, Texture2D texture, Rectangle rectangle, Vector2 position)
block = new Block(false, textureBlock, rectBlock, positionBlock);
blocks.Add(block);
positionBlock.X += (width / 100) * 24;
}
}
positionBlock.Y += (height / 100) * 8;
positionBlock.X = 0;
}
}
//This method below updates the character 'bob' position and velocity.
public void UpdatePlayer()
{
bob.position += bob.velocity;
bob.rectangle = new Rectangle((int)bob.position.X, (int)bob.position.Y, width / 30, height / 30);
float i = 1;
bob.velocity.Y += 0.15f * i;
foreach (Block block in blocks)
{
if (bob.isOnTopOf(bob.rectangle, block.rectangle))
{
bob.velocity.Y = 0f;
bob.hasJumped = false;
}
}
}
字符.cs
//Here is my whole Character class for 'bob'
public class Character
{
int height = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Height;
int width = GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width;
int health;
String name;
bool gender;
Texture2D texture;
public Vector2 position;
public Vector2 velocity;
public bool hasJumped;
public Rectangle rectangle;
public Character(int newHealth, String newName, bool newGender, Texture2D newTexture, Vector2 newPosition)
{
health = newHealth;
gender = newGender;
name = newName;
texture = newTexture;
position = newPosition;
hasJumped = true;
rectangle = new Rectangle(0,0, width/30,height/30);
velocity = Vector2.Zero;
}
public bool isOnTopOf(Rectangle r1, Rectangle r2)
{
const int penetrationMargin = 5;
return (r1.Bottom >= r2.Top - penetrationMargin &&
r1.Bottom <= r2.Top &&
r1.Right >= r2.Left + 5 &&
r1.Left <= r2.Right - 5);
}
public void Draw(SpriteBatch spriteBatch)
{
spriteBatch.Draw(texture, rectangle,null, Color.White,0,position,SpriteEffects.None,0);
}
}
抱歉,如果发布的代码过多或令人困惑,但非常感谢任何帮助!谢谢!