week14

2019/12/12

Server:等顧客上門
Client:客人

Client端
import processing.net.*;
Client client;
void setup(){
  size(300,300);
  client=new Client(this,"120.125.70.34",7777);///接收端的IP
}
void draw(){
  if(mousePressed){
    line(mouseX,mouseY,pmouseX,pmouseY);
   client.write(mouseX+" "+mouseY+" "+pmouseX+" "+pmouseY+"\n");
  }

}

Server端
import processing.net.*;
Server server=null;
Client client=null;//等一下要上門的Client,只接受一位客人
void setup(){
  size(300,300);
  server=new Server(this,7777);///不用寫IP
}
void draw(){
  Client temp=server.available();///開門看一下有沒有人來
  if(temp!=null){//有人上鉤了....連線成功
    client=temp;
  }
  if(client!=null){
    String now=client.readString();///如果有送資料會讀到四個座標
    if(now!=null)print(now);
  }

}

Client端
import processing.net.*;
Client client;
void setup(){
  size(300,300);
  client=new Client(this,"120.125.70.34",7777);///接收端的IP
}
void draw(){
  if(mousePressed){
    line(mouseX,mouseY,pmouseX,pmouseY);
   client.write(mouseX+" "+mouseY+" "+pmouseX+" "+pmouseY+"\n");
  }

}
Server端
import processing.net.*;
Server server=null;
Client client=null;
void setup(){
  size(300,300);
  server=new Server(this,7777);
}
void draw(){
  Client temp=server.available();
  if(temp!=null){
    client=temp;
  }
  if(client!=null){
    String now=client.readString();
    if(now!=null){
      String[]xyxy=splitTokens(now);//新增這兩行讓Client和Server同步
      line(int(xyxy[0]),int(xyxy[1]),int(xyxy[2]),int(xyxy[3]));
    }
  }

}

畫錯可以消除

import processing.net.*;

Client client;

ArrayList<PVector>points;

void setup(){

  size(300,300);

  client=new Client(this,"120.125.70.34",7777);

  points=new ArrayList<PVector>();

}

void draw(){

  background(255);

  for(int i=0;i<points.size();i++){

    ellipse(points.get(i).x,points.get(i).y,5,5);

  }

}

void mouseDragged(){

  if(mouseButton==LEFT) points.add(new PVector(mouseX,mouseY));

  if(mouseButton==RIGHT &&points.size()>0) points.remove(points.size()-1);

}