给定宽度和高度，如何调整对象的2D向量大小？ [英] How can I resize a 2D vector of objects given the width and height?

问题描述

我的类 GameBoard 有一个成员变量，它是 Tile 。 GameBoard 构造函数以width和height作为参数。

My class, GameBoard, has a member variable that is a 2D vector of an object of the class Tile. The GameBoard constructor takes width and height as parameters.

如何获得 Tile 根据传递给构造函数的宽度和高度来调整对象大小？如何填充 Tile 对象，以便我可以这样做？

How can I get the 2D vector of Tile objects to resize according to the width and height passed to the constructor? How can I fill it with Tile objects so that I can do something like this?

myVector[i][j].getDisplayChar();

片段

m_vvTiles.resize(iHeight);

for(auto it = m_vvTiles.begin(); it != m_vvTiles.end(); it++ ){

    (*it).resize(iWidth,Tile(' '));
}

推荐答案

和内部向量分开。

myVector.resize(n);
for (int i = 0; i < n; ++i)
    myVector[i].resize(m);

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