使用循环将RectangleShapes设置在不同位置只会产生一条垂直线

Question

我正在尝试在SFML中创建一个关卡编辑器。我尝试使用2D对象数组使整个屏幕充满它们，一个挨着另一个。问题在于它只会创建一条垂直线。

我尝试更改循环的方式，使某些变量变为全局变量。没什么我能想到的帮助。

LevelEditor.h：

#pragma once
#include "../StateBase.h"
#include "../Gameloop.h"
#include "Air.h"

namespace Engine
{
    class LevelEditor : public StateBase
    {
        sf::RectangleShape rect;
        Block *block = new Air[20, 15];
        gameDataPtr prData;
    public:
        LevelEditor(gameDataPtr data);
        virtual void run();
        virtual void update(float dt);
        virtual void draw(sf::RenderWindow &window);
        sf::Vector2f checkWhere();
    };
}

LevelEditor.cpp：

#include "LevelEditor.h"
#include "../engineData.h"

namespace Engine
{
    LevelEditor::LevelEditor(gameDataPtr data) : prData(data) {}
    void LevelEditor::run()
    {
        this->rect.setFillColor(sf::Color(255, 255, 255, 100));
        this->rect.setSize(sf::Vector2f(50, 50));
        float x=0;
        int i = 0;
        while (i < 20)
        {
            float y = 0;
            int j = 0;
            if (i != 0)
                x += 50;
            while (j < 15)
            {
                this->block[i, j].init();
                this->block[i, j].setPos(sf::Vector2f(x, y));
                y += 50;
                j++;
            }
            i++;
        }
    }
    void LevelEditor::update(float dt)
    {
        sf::Event event;
        while (this->prData->window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                this->prData->window.close();
        }
        this->rect.setPosition(this->checkWhere());
    }
    void LevelEditor::draw(sf::RenderWindow &window)
    {
        int i = 0;
        window.draw(this->rect);
        while (i < 20)
        {
            int j = 0;
            while (j < 15)
            {
                this->block[i, j].draw(window);
                j++;
            }
            i++;
        }
    }
    sf::Vector2f LevelEditor::checkWhere()
    {
        sf::Vector2f tempVec(0, 0);
        while (sf::Mouse::getPosition(this->prData->window).x - tempVec.x >= 50)
            tempVec.x += 50;

        while (sf::Mouse::getPosition(this->prData->window).y - tempVec.y >= 50)
            tempVec.y += 50;

        return tempVec;
    }
}

Block.h：

#pragma once
#include "../Assetmanager.h"

namespace Engine
{
    class Block
    {
    protected:
        bool isDestroyable;
        sf::Sprite sprite;
        sf::RectangleShape rect;
        Assetmanager assets;
    public:
        virtual void init() = 0;
        virtual void update(float dt) = 0;
        virtual void draw(sf::RenderWindow &window) = 0;
        void setPos(sf::Vector2f pos) { this->rect.setPosition(pos); }
        sf::Sprite returnSprite() { return this->sprite; }
    };
}

Air.h：

#pragma once
#include "Block.h"
#include "../engineData.h"

namespace Engine
{
    class Air : public Block
    {
    public:
        virtual void init() { rect.setFillColor(sf::Color::Green); rect.setSize(sf::Vector2f(50, 50)); }
        virtual void update(float dt){}
        virtual void draw(sf::RenderWindow &window) { window.draw(this->rect); }
    };
}

这就是我得到的： Just a vertical line

但是我希望屏幕完全是绿色的。