我正在开发一款 roguelike 游戏,我将其设置为在 MOST 一个关卡上会有 3 个怪物。所以我有3个指向怪物的指针。它们都以 NULL 开始。
在那个怪物死后,我应该如何将指针设置回 NULL?或者,也许我有错误的想法?本质上,我需要移除怪物,直到该指针重新生成为另一个怪物。
我已经尝试了一些事情,但我只是不断遇到段错误。
我尝试使用擦除、删除,只需将其设置为 NULL,然后重新指向它。想不通。
这是我设置指针的方式:
CreatureFactory myCreatures = CreatureFactory::instance();
Creature * pCreature1 = NULL;
Creature * pCreature2 = NULL;
Creature * pCreature3 = NULL;;
ItemFactory myItems = ItemFactory::instance();
Item * pItem1 = myItems.generateItem();
dl.placeInGame(personPlaying,randomGen);
int monsterCount = 0;
int turnCount = 0;
bool playingGame = true;
char playerController;
while (playingGame){
if ((turnCount % 2 == 0) && (personPlaying.getHP() < personPlay$
personPlaying.generateHP();
}
if (((turnCount % 3) == 0) && (monsterCount < 2)){
if(pCreature1 == NULL){
pCreature1 = myCreatures.generateCreature(4);
dl.placeInGame(pCreature1,randomGen);
monsterCount += 1;
}
else if(pCreature2 == NULL){
pCreature2 = myCreatures.generateCreature(4);
dl.placeInGame(pCreature2, randomGen);
monsterCount += 1;
}
else if(pCreature3 == NULL){
pCreature3 = myCreatures.generateCreature(4);
monsterCount += 1;
}
}
dl.dump();
personPlaying.dumpStats();
CreatureFactory code..
CreatureFactory & CreatureFactory::instance(){
static CreatureFactory myObj;
return myObj;
}
CreatureFactory::CreatureFactory(){
m_mtRandom.seed( time(NULL) );
fstream xmlFile;
xmlFile.open("critters.xml");
vector<XMLSerializable*> pObjects;
parseXML(xmlFile, pObjects);
XMLSerializable * pObject;
for(auto it = pObjects.begin(); it != pObjects.end(); it++){
pObject = (*it);
Creature * pCreature = dynamic_cast<Creature*>(pObject);
if (pCreature != NULL){
m_vCreatures.push_back(pCreature);
}
}
}
CreatureFactory::~CreatureFactory(){
}
Creature * CreatureFactory::generateCreature(int iMaxLevel) {
vector<Creature*> tempCreatures;
for(auto it = m_vCreatures.begin(); it != m_vCreatures.end(); it++){
if ((*it)->getLevel() <= iMaxLevel){
tempCreatures.push_back((*it));
}
}
int randomCreature = (m_mtRandom() % (tempCreatures.size() - 1));
Creature * pCreature = tempCreatures.at(randomCreature);
Creature * pReturnValue = new Creature(*pCreature);
return pReturnValue;
}
然后我做了大量的循环并使用了大量的类。指向这些怪物对象的指针通过大约 6 或 7 个类传递。当 HP 达到 0 时,我需要将其中之一设置为 NULL。
谢谢