World.hpp

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#pragma once
 
#include <vector>
#include <type_traits>
 
#include "Util/Vector2.hpp"
#include "Game/Actors/Actor.hpp"

using ActorPool = std::vector<Actor*>;
 
class Player;

class World
{
public:
    static constexpr int EXTENT_X = 1'000;
    static constexpr int EXTENT_Y = 24;
    
    World();
    ~World();

    template<typename ActorClass>
    ActorClass* SpawnActor();
    template<typename ActorClass>
    ActorClass* SpawnActor(const Vector2& SpawnPosition);

    void DestroyActor(Actor* actor);
    Actor* AddtoPool(Actor* actor);

    inline size_t ActorCount() const { return actorPool.size(); }
    const ActorPool& GetAllActors() const;
 
private:
    Player* ActivePlayer;
    ActorPool actorPool;
 
};
 
template<typename ActorClass>
ActorClass* World::SpawnActor() {
    static_assert(std::is_base_of_v<Actor, ActorClass>, "Illegal class spawn to world");
 
    Actor* actor = new ActorClass();
    AddtoPool(actor);
 
    // post-spawn functionality here
    actor->DispatchBeginPlay();
 
    return static_cast<ActorClass*>(actor);
}
 
template<typename ActorClass>
ActorClass* World::SpawnActor(const Vector2& SpawnPosition) {
    Actor* actor = SpawnActor<ActorClass>();
    actor->SetPosition(SpawnPosition);
 
    return static_cast<ActorClass*>(actor);
}