🛠️🐜 Antkeeper superbuild with dependencies included https://antkeeper.com
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#include <entt/core/attribute.h>
#include <entt/entity/registry.hpp>
#include "types.h"
ENTT_API void update_position(entt::registry &registry) {
registry.view<position, velocity>().each([](auto &pos, auto &vel) {
pos.x += static_cast<int>(16 * vel.dx);
pos.y += static_cast<int>(16 * vel.dy);
});
}
ENTT_API void emplace_velocity(entt::registry &registry) {
// forces the creation of the pool for the velocity component
static_cast<void>(registry.storage<velocity>());
for(auto entity: registry.view<position>()) {
registry.emplace<velocity>(entity, 1., 1.);
}
}