java - GridWorld 将花添加到随机位置

Question

我正在尝试制作一个“GrowingFlower”，它只是将花朵添加到随机位置。添加的花朵数量基于随机数。当我在点击 Action 6 次后运行“花”时，它会像预期的那样死掉，但它不会添加任何花，所以我需要你的帮助来解决这个问题。预先感谢您。

这是“GrowingFlower”的代码

package projects.flowers;

import info.gridworld.actor.ActorWorld;
import info.gridworld.actor.Flower;

public class GrowingFlower extends Flower {

private int Growing = (int) (Math.random() * 4);
private int age = 0;
ActorWorld world = new ActorWorld();



public void act(){
    Growing = (int) (Math.random() * 4);
    age++;
    if (age == 1){
        switch(Growing){
        case 0:
            removeSelfFromGrid();
        case 1:
            world.add(new GrowingFlower());
        case 2:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 3:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 4:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        }
    }
    else if (age == 2){
        switch(Growing){
        case 0:
            removeSelfFromGrid();
        case 1:
            world.add(new GrowingFlower());
        case 2:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 3:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 4:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        }
    } else if(age == 3)  {
        switch(Growing) {
        case 0:
            removeSelfFromGrid();
        case 1:
            world.add(new GrowingFlower());
        case 2:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 3:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 4:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());

        }
    } else if (age == 4){
        switch(Growing) {

        case 0:
            removeSelfFromGrid();
        case 1:
            world.add(new GrowingFlower());
        case 2:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 3:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 4:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());

        }

    } else if (age == 5){
        switch(Growing) {

        case 0:
            removeSelfFromGrid();
        case 1:
            world.add(new GrowingFlower());

        case 2:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 3:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
        case 4:
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());
            world.add(new GrowingFlower());

        }

    } else if (age == 6){
        removeSelfFromGrid();
    }



}

}

这是我的运行者

package projects.firstProject;



import projects.flowers.GrowingFlower;
import info.gridworld.actor.ActorWorld;

public class FlowerRunner
{
    public static void main(String[] args)
    {
    ActorWorld world = new ActorWorld();
    world.add(new GrowingFlower());
    world.show();
    }
}

Answer 1

我对这个“GridWorld”框架不太熟悉，所以这可能不是一个可接受的答案，但对于评论来说太长了，而且......不过可能会有帮助:

我认为问题在于您正在 GrowingFlower 实例中创建一个新世界:

public class GrowingFlower extends Flower {
    ...
    ActorWorld world = new ActorWorld();

稍后，在 act 方法中，您将向此世界添加新的 GrowingFlower 实例，但不添加到您创建的世界 (并显示!)在 main 方法中。

因此解决方案可能是将代码更改如下:

1.更改 GrowingFlower 类的构造函数以接受应添加新花的“世界”:

public class GrowingFlower extends Flower {

    private int Growing = (int) (Math.random() * 4);
    private int age = 0;

    ActorWorld world; // Don't create a new world here!

    // Instead, use the world that is passed in 
    // in the constructor:
    GrowingFlower(ActorWorld world)
    {
        this.world = world;
    }

    ...

2. 将世界从 main 方法传递到您的第一个 GrowingFlower:

public static void main(String[] args)
{
    ActorWorld world = new ActorWorld();
    world.add(new GrowingFlower(world)); // Pass it in here!
    world.show();
}

<小时/>

除此之外，您应该稍微重构您的 act 方法:

public void act(){
    Growing = (int) (Math.random() * 4);
    age++;
    if (age < 6){
        handleGrowing();
    }
    else {
        removeSelfFromGrid();
    }
}

private void handleGrowing()
{
    switch(Growing){
    case 0:
        removeSelfFromGrid();
    case 1:
        world.add(new GrowingFlower());
    case 2:
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
    case 3:
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
    case 4:
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
        world.add(new GrowingFlower());
    }
}

(据我所知，这应该仍然具有相同的行为)