如何在两个类之间进行碰撞？

Question

我需要帮助并尽快<3 所以这是代码，我希望游戏在脸 class 接触到敌人 class 时停止！！碰撞或其他原因。我有脸、主要、眼睛、敌人、消息 class。我已经问过这个问题，但我尝试将它们放在一起但没有用。请帮助我，非常感谢<3

Face f1;
Enemy e1,e2,e3,e4;
Message m1, m2, m3, m4;
int currentTime;
int enemy;


void setup()
{
  size (600,600);
  f1=new Face(50,200,300,0,255,0); 
  e1 = new Enemy(200,300,30,-5,255,0,0);
  e2=new Enemy(400,200,40,-8,255,0,0);
  e3=new Enemy(100,500,50,-7,255,0,0);
  e4=new Enemy(550,400,30,-6,255,0,0);
  m1 = new Message(width/2, height/2,    1000,4000, "wear a mask");
  m2 = new Message(width/2, height/2, 5000,9000, "avoid contacts");
  m3 = new Message(width/2, height/2, 10000,14000, "wash your hands");
  m4 = new Message(width/2, height/2, 15000,19000, "stay safe");
  
}
 



void draw()
{
  background (0);
  currentTime = millis();
  f1.display();
  e1.move();
  e1.display();
  e2.display();
  e2.move();
  e3.display();
  e3.move();
  e4.display();
  e4.move();
  m1.setTime(currentTime);
  m2.setTime(currentTime);
  m3.setTime(currentTime);
  m4.setTime(currentTime);
  m1.display();
  m2.display();
  m3.display();
  m4.display();
  
 



  fill(35, 20, 219);
  rect(200, 240, 180, 30); 
  rect(0, 0, 600, 10); 
  rect(0, 0, 10, 600); 
  rect(0, 590, 600, 10);
  rect(590, 0, 10, 600);
  rect(40, 50, 50, 20);
  rect(140, 50, 50, 20);
  rect(0, 220, 40, 140);
  rect(0, 400, 40, 20);
  rect(80, 580, 200, 20);
  rect(340, 580, 200, 20);
  rect(240, 500, 150, 20);
  rect(300, 500, 20, 50);
  rect(240, 380, 150, 20);
  rect(300, 380, 20, 70);
  rect(390, 450, 60, 15);
  rect(500, 450, 90, 15);
  rect(500, 480, 20, 50);
  rect(120, 420, 20, 80);
  rect(90, 500, 90, 20);
  rect(280, 0, 20, 60);
  rect(380, 50, 40, 20);
  rect(480, 50, 40, 20);
  rect(480, 280, 20, 100);
  rect(450, 260, 80, 20);
  rect(150, 120, 300, 20);
  rect(275, 140, 25, 40);
  rect(100, 270, 20, 100);fill(35, 20, 219);
  rect(200, 240, 180, 30); 
  rect(0, 0, 600, 10); 
  rect(0, 0, 10, 600); 
  rect(0, 590, 600, 10);
  rect(590, 0, 10, 600);
  rect(40, 50, 50, 20);
  rect(140, 50, 50, 20);
  rect(0, 220, 40, 140);
  rect(0, 400, 40, 20);
  rect(80, 580, 200, 20);
  rect(340, 580, 200, 20);
  rect(240, 500, 150, 20);
  rect(300, 500, 20, 50);
  rect(240, 380, 150, 20);
  rect(300, 380, 20, 70);
  rect(390, 450, 60, 15);
  rect(500, 450, 90, 15);
  rect(500, 480, 20, 50);
  rect(120, 420, 20, 80);
  rect(90, 500, 90, 20);
  rect(280, 0, 20, 60);
  rect(380, 50, 40, 20);
  rect(480, 50, 40, 20);
  rect(480, 280, 20, 100);
  rect(450, 260, 80, 20);
  rect(150, 120, 300, 20);
  rect(275, 140, 25, 40);
  rect(100, 270, 20, 100);
  
 
}
 
  
 
     
      
  

  

void keyPressed()
{
  if(key==CODED)
  {
    if(keyCode==LEFT)
    {
     f1.moveLeft();
    }
    if(keyCode==RIGHT)
    {
      f1.moveRight();
    }
    if(keyCode==UP)
    {
     f1.moveUp();
    }
    if(keyCode==DOWN)
    {
     f1.moveDown();
    }
    
 
  }

}
----------------------------------------------
class Eye
{
  int diameter;
  int x;
  int y;
  int grey;
  
  Eye(int d, int xcor, int ycor, int g)
  {
    grey=g;
    diameter=d;
    x=xcor;
    y=ycor;
  }
  void display()
  {
    fill(grey);
    ellipse(x,y,diameter,diameter);
  }
  int getX()
  {
    return x;
  }
  void setX(int xx)
  {
    x=xx;
 }
   int getY()
  {
    return y;
  }
  void setY(int yy)
  {
    y=yy;
 }
 
 
 
 
}
----------------------------------------------
class Enemy
{
  int x;
  int y;
  int diameter;
  int step;
  int r;
  int g;
  int b;
  
  
  Enemy(int a,int b,int c,int d,int rc,int gc,int bc)
  {
    x=a;
    y=a;
    diameter=c;
    step=d;
    r=rc;
    g=gc;
    b=bc;
}
void display()
{ 
  fill(r, g, b);
  stroke(0,0,255);
  ellipse(x,y,diameter,diameter);
  
}

void move()
{
  y=y+step;
  if(y<diameter)
  step=-step;
  if(y>600)
  step=-step;
}
void moveUp()
{ 
  if(y>=5+diameter/2)
  {
    y=y-5;
  }
}
void moveDown()
{
  if(y<=height-5-diameter/2)
  {
    y=y+5;
  }
}

----------------------------------------------
class Face
{
  int diameter;
  int x;
  int y;
  int r;
  int g;
  int b;
  Eye leftEye;
  Eye rightEye;
  
  Face(int d, int xcor, int ycor,int rc,int gc,int bc)
  {
    diameter=d;
    y=ycor;
    x=xcor;
    r=rc;
    g=gc;
    b=bc;
    leftEye=new Eye(10,x-10,y-10,255);
    rightEye=new Eye(10,x+10,y-10,250);
  }
  void display()
  {
    fill(255, g, b);
    stroke(255,0,0);
    ellipse(x,y,diameter,diameter);
    leftEye.display();
    rightEye.display();
  }
  void moveLeft()
  {
    if(x>diameter/2)
    {
      x=x-10;
      leftEye.setX(leftEye.getX()-10);
      rightEye.setX(rightEye.getX()-10);
   }
  }
  void moveRight()
  {
    if(x<width-diameter/2)
    {
    x=x+10;
      leftEye.setX(leftEye.getX()+10);
      rightEye.setX(rightEye.getX()+10);
    }
  }
  void moveUp()
{ 
  if(y>=5+diameter/2)
  {
    y=y-10;
    leftEye.setY(leftEye.getY()-10);
    rightEye.setY(rightEye.getY()-10);
  }
}
 
    void moveDown()
{
  if(y<=height-5-diameter/2)
  {
    y=y+10;
    leftEye.setY(leftEye.getY()+10);
    rightEye.setY(rightEye.getY()+10);
    
  }
}
void changeColor()
{
  r=(r+20)%255;
}



  }
  --------------------------------------------
class Message
{
int startTime;
int stopTime;
String str;
int x;
int y;
boolean visible;

Message(int xcor, int ycor, int t1,int t2, String s)
{
  x = xcor;
  y = ycor;
  startTime = t1;
  stopTime = t2;
  str = s;
  visible = false;
}

void display()
{
  textSize(24);
  if(visible == true)
   {
     text(str, x, y);
   }
}
  
void setTime(int time)
{
    if(time>=startTime && time<= stopTime)
    {
      visible = true;   
    }
    else
    {
      visible = false;   
    }
}

----------------------------------------------

Answer 1

一般来说，最好使用较小的程序来缩小问题范围并测试假设，重点放在该问题上。目前你已经发布了很多有很多语法错误的代码。您需要一次修复一个语法错误。

关于您的家庭作业目标：

the game to stop when the face class touches the enemy class

这应该是直截了当的，因为：

你知道面部实例（不是class）和敌人实例的位置。
你知道每个的直径
如果两者之间的距离小于它们的半径之和，则一定是碰撞

半径只是直径的一半，关于距离，Processing 使用 dist(x1, y1, x2, y2) 函数使这变得微不足道。只需给它两个实例（脸和敌人）的 x,y 坐标对，它就会 return 距离。（无需手动计算毕达哥拉斯定理，dist() 为您代劳）

检查此 Processing rollover example 并特别注意 overCircle 函数。在您的场景中：

if(dist(f1.x, f1.y, e1.x, e1.y) < ( (f1.diameter + e1.diameter) / 2) ){
  noLoop();
}

不清楚您是否已经学习了数组和 for 循环。这将有助于避免手动复制粘贴和修改其余敌人的条件。

如何在两个类之间进行碰撞？

How do I make collision between two classes?

processing

collision

如何在两个 类 之间进行碰撞？

How do I make collision between two classes?

processing

collision

如何在两个类之间进行碰撞？