回答編集履歴
2
編集終了
test
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自殺するオブジェクトが自分が住んでるビルをハードコーディングして部屋ごと爆破するのは
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なんというか迷惑な気がする。
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案1. 死体掃除業者を呼ぶ
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```c++
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#include<iostream>
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#include<list>
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class cEnemy {
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bool alive = true;
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public:
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bool isAlive() const;
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void F();
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};
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std::list<cEnemy> TestList;
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int main() {
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TestList.push_back(cEnemy());
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TestList.push_back(cEnemy());
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TestList.push_back(cEnemy());
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for (auto IT = TestList.begin(); IT != TestList.end(); IT++) {
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IT->F(); // 殺す
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}
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std::cout << TestList.size() << std::endl;
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// お片付け
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TestList.remove_if([](const cEnemy& e){return !e.isAlive();});
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std::cout << TestList.size() << std::endl;
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return 0;
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}
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void cEnemy::F() {
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//画面外に出たら、殺す
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if (true) {
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alive = false; // 死にました
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}
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}
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bool cEnemy::isAlive() const{return alive;}
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```
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案2. ビル(list)に管理人を雇ってそいつに命令する。
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```c++
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class cEnemy {
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bool alive = true;
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public:
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bool isAlive() const;
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bool F();
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};
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class cEnemyManager {
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public:
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std::list<cEnemy> TestList;
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void remove_if_F();
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}
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void cEnemyManager::remove_if_F(){
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TestList.remove_if(
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[](cEnemy& e){return e.F();}
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);
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}
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bool cEnemy::F() {
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//画面外に出たら、殺す
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if (true) {
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alive = false; // 死にました
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return true;
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}
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return false;
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}
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```
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1
途中
test
CHANGED
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@@ -1,61 +1 @@
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```c++
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-
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#include<iostream>
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#include<list>
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class cEnemy {
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bool isAlive = true;
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public:
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void F();
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};
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std::list<cEnemy> TestList;
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1
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+
途中送信してしまいました
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TestList.push_back(cEnemy());
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TestList.push_back(cEnemy());
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TestList.push_back(cEnemy());
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for (auto IT = TestList.begin(); IT != TestList.end(); IT++) {
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IT->F();
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}
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TestList.remove_if([](const auto& e){return !e.isAlive;});
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return 0;
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}
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void cEnemy::F() {
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//画面外に出たら、殺す
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if (true) {
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isAlive = false;
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}
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}
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```
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