job.hpp

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// Copyright 2012-2024 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include <functional>
#include <memory>
 
namespace jngl {
 
class Job {
public:
    virtual void step() = 0;
 
    virtual void draw() const = 0;
 
    Job() = default;
 
    Job(const Job&) = default;
 
    Job& operator=(const Job&) = default;
 
    Job(Job&&) = default;
 
    Job& operator=(Job&&) = default;
 
    virtual ~Job();
};
 
void addJob(std::shared_ptr<Job> job);
 
template <class T, class... Args>
void addJob(Args&&... args) {
    addJob(std::make_shared<T>(std::forward<Args>(args)...));
}
 
void removeJob(Job*);
 
std::shared_ptr<Job> getJob(const std::function<bool(Job&)>& predicate);
 
template <class T> std::shared_ptr<T> getJob() {
    return std::dynamic_pointer_cast<T>(
        getJob([](Job& job) { return dynamic_cast<T*>(&job) != nullptr; }));
}
 
} // namespace jngl