2D阵列>错误

Question

“虚函数表从参考点”以我为瓷砖类的头，我与在执行没有定义所定义的纯虚方法瓦（地形和演员）都与实施方式覆盖setVals方法：分别

void Terrain::setVals(int ID){ 
    switch(ID){ 
     case 1 : GFX_ = '.'; name_ = "Grass"; desc_ = "Some grass"; break; 
     default: GFX_ = '?'; name_ = "Error"; desc_ = "Error"; Tile::isPassable_ = false; break; 
    } 
} 

和

void Tile::setVals(int ID){ 
    switch(ID){ 
     case 1 : GFX_ = '?'; name_ = "Nothing"; desc_ = "You shouldn't be seeing this"; break; 
     case 0 : GFX_ = '@'; name_ = "Player"; desc_ = "The Player"; break; 
     default: GFX_ = '?'; name_ = "Error"; desc_ = "Error"; Tile::isPassable_ = false; break; 
    } 
} 

。每个子类的一个2D阵列被初始化在地图类：

Terrain terrain_[HEIGHT][WIDTH]; 
Actor actors_[HEIGHT][WIDTH]; 

（其中高度和宽度是恒定的整数）。但是当程序运行时，程序返回一个运行时错误，读取“'Actor'的vtable，引用自：”。我在如何初始化这些方法或对象时犯了错误吗？

Answer 1

你说你的基类是Tile，并具有下列纯虚方法

virtual void setVals(int ID) = 0; 

但你却在定义的？

void Tile::setVals(int ID){ 
    switch(ID){ 
     case 1 : GFX_ = '?'; name_ = "Nothing"; desc_ = "You shouldn't be seeing this"; break; 
     case 0 : GFX_ = '@'; name_ = "Player"; desc_ = "The Player"; break; 
     default: GFX_ = '?'; name_ = "Error"; desc_ = "Error"; Tile::isPassable_ = false; break; 
    } 
} 

你需要实现Actor::setVals如果从Tile