可能重复：
无法对非静态字段进行静态引用
我在这里创建了这段代码：http: //mibpaste.com/naGV58 使用 arraylists 来获得所需的结果。如您所见，每个代理都使用到达（PVector）; 方法。
我尝试通过实现继承和多态性来重新配置整个过程，以创建一些子类等。这里的新代码：http: //mibpaste.com/WwZBWz 当我尝试应用特定方法时会产生问题。错误是：
无法对非静态字段 MW2.location 进行静态引用
你知道如何解决它吗？我想我必须从每个子类创建新对象，但我不知道如何......
我尝试过的任何事情都已经失败了。我什至不确定语法。
任何帮助将非常感激！
agents = new ArrayList<Capsule>(); // creating the agents
for (int i = 0; i < 85; i++) {
if (i < 20) agents.add(new MW1(random(width),random(height),color(255,0,0),i));
else if (i < 45) agents.add(new FW1(random(width),random(height),color(0,255,0),i));
else if (i < 65) agents.add(new MW2(random(width),random(height),color(155,0,0),i));
else agents.add(new FnW2(random(width),random(height),color(0,155,0),i));
}
}
//--------------configuring the canvas & the counter-------------
void draw() {
background(255);
time(); //reference to the visual timer
if(millis() - time >= wait){
println(counter);//if it is, do something
temp=counter;
time = millis();//also update the stored time
counter++; // counter augmentation
if(counter >180){ // check whether time exceeds 180 sec. aka 24:00 hours
counter=0;
}
}
//-------------------------------------------------------------
work.Default(); //main-basic functions of (W) facility
retail.Default(); //main-basic functions of (R) facility
school.Default(); //main-basic functions of (S) facility
leisure.Default(); //main-basic functions of (L) facility
PVector vectorOfwork = new PVector(work.location.x, work.location.y);
PVector vectorOfretail = new PVector(retail.location.x, work.location.y);
PVector vectorOfschool = new PVector(school.location.x, school.location.y);
PVector vectorOfleisure = new PVector(leisure.location.x, leisure.location.y);
for( Capsule agent : agents) { // instancing - creating objects
agent.Default(); // global separation that affects ALL the agents
agent.separate(agents); // global separation that affects ALL the agents
if (counter>0 && counter<=30) {
if (agent instanceof FnW2)
agent.arrive(MW2.location);
}
}
}