Quick'start
on this page you will find a quick example that you can copy paste to have a functional world
Here is the file below:
quick_start.cpp
#include <shiva/world/world.hpp>
namespace my_game::systems
{
class bar : public shiva::ecs::pre_update_system<bar>
{
public:
bar(shiva::entt::dispatcher &dispatcher, shiva::entt::entity_registry ®istry,
const float &fixed_delta_time) :
system(dispatcher, registry, fixed_delta_time)
{
}
void update() noexcept final
{
std::cout << __FUNCTION__ << " name: " << class_name() << std::endl;
}
reflect_class(bar);
static constexpr auto reflected_functions() noexcept
{
return shiva::meta::makeMap();
}
static constexpr auto reflected_members() noexcept
{
return shiva::meta::makeMap();
}
};
class foo : public shiva::ecs::logic_update_system<foo>
{
public:
foo(shiva::entt::dispatcher &dispatcher, shiva::entt::entity_registry ®istry,
const float &fixed_delta_time) :
system(dispatcher, registry, fixed_delta_time)
{
}
void update() noexcept final
{
std::cout << __FUNCTION__ << " name: " << class_name() << std::endl;
}
reflect_class(foo);
static constexpr auto reflected_functions() noexcept
{
return shiva::meta::makeMap();
}
static constexpr auto reflected_members() noexcept
{
return shiva::meta::makeMap();
}
};
class folk : public shiva::ecs::post_update_system<folk>
{
public:
folk(shiva::entt::dispatcher &dispatcher, shiva::entt::entity_registry ®istry,
const float &fixed_delta_time) :
system(dispatcher, registry, fixed_delta_time)
{
}
void update() noexcept final
{
if (counter == 10) {
this->dispatcher_.trigger<shiva::event::quit_game>(0);
}
std::cout << __FUNCTION__ << " system: " << class_name() << std::endl;
counter++;
}
reflect_class(folk);
static constexpr auto reflected_functions() noexcept
{
return shiva::meta::makeMap();
}
static constexpr auto reflected_members() noexcept
{
return shiva::meta::makeMap();
}
private:
size_t counter{0};
};
}
namespace my_game
{
class my_world : public shiva::world
{
public:
my_world()
{
system_manager_.load_systems<my_game::systems::foo, my_game::systems::bar, my_game::systems::folk>();
}
};
}
int main()
{
my_game::my_world world;
return world.run();
}
Last modified 4yr ago