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add forward declaration

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add classes
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david
2025-09-15 18:17:50 +02:00
parent 6cc9643a3d
commit 27a9acdee6
17 changed files with 628 additions and 1 deletions
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CPlusPlus/Classes/Classes.vcxproj
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<ClCompile Include="main.cpp" />
<ClCompile Include="Monster.cpp" />
<ClCompile Include="Ork.cpp" />
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<ClInclude Include="Monster.h" />
<ClInclude Include="Ork.h" />
<ClInclude Include="Vector3.h" />
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CPlusPlus/Classes/Classes.vcxproj.filters
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CPlusPlus/Classes/Entity.cpp
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#include "Entity.h" // project header files, pre compiler will search in project folder first
#include <iostream> // system header files, pre compiler will search in system folders first
Entity::Entity() // defined
{
}
Entity::Entity(std::string name) : _name(name)
{
//_name = name;
}
CPlusPlus/Classes/Entity.h
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#pragma once
#include <string>
class Entity
{
public:
Entity(); // declared
Entity(std::string name);
virtual std::string toString() { return "Entity"; } // declared & defined, only use that for one liners
std::string getName() { return _name; }
void setName(std::string name) { _name = name; }
protected:
std::string _name = "";
}; // IMPORTANT: always end with a semicolon
CPlusPlus/Classes/Monster.cpp
+6
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#include "Monster.h"
Monster::Monster()
{
//toString();
}
CPlusPlus/Classes/Monster.h
+11
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#pragma once
#include "Entity.h"
class Monster : public Entity
{
public:
Monster();
std::string toString() override { return "Monster"; }
};
CPlusPlus/Classes/Ork.cpp
+6
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#include "Ork.h"
Ork::Ork()
{
//toString();
}
CPlusPlus/Classes/Ork.h
+11
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#pragma once
#include "Monster.h"
class Ork : public Monster
{
public:
Ork();
std::string toString() override { return "Ork"; }
};
CPlusPlus/Classes/Vector3.h
+11
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#pragma once
struct Vector3
{
float x;
float y;
float z;
Vector3() : x(0.0f), y(0.0f), z(0.0f) {}
Vector3(float _x, float _y, float _z) : x(_x), y(_y), z(_z) {}
};
CPlusPlus/Classes/main.cpp
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#include <iostream>
#include "Entity.h"
#include "Monster.h"
#include "Vector3.h"
using namespace std;
int main()
{
Entity entity; // this is an entity instance
cout << entity.toString() << endl;
Monster monster;
cout << monster.toString() << endl;
Vector3 position;
Vector3 position2(1.0f, 0.0f, -10.0f);
Vector3 position3 = Vector3();
Vector3 position4{}; // list-initializer
Vector3 position5 = {}; // list-initializer assigned
return 0;
}