VoxelEngine/src/objects/Entities.hpp
2024-06-30 00:32:02 +03:00

130 lines
2.6 KiB
C++

#ifndef OBJECTS_ENTITIES_HPP_
#define OBJECTS_ENTITIES_HPP_
#include "../typedefs.hpp"
#include "../physics/Hitbox.hpp"
#include <optional>
#include <glm/glm.hpp>
#include <unordered_map>
#include <entt/entity/registry.hpp>
struct entity_funcs_set {
bool init : 1;
bool on_despawn : 1;
bool on_grounded : 1;
bool on_fall : 1;
};
struct EntityDef;
struct EntityId {
entityid_t uid;
const EntityDef& def;
};
struct Transform {
glm::vec3 pos;
glm::vec3 size;
glm::mat3 rot;
glm::mat4 combined;
void refresh();
};
struct Rigidbody {
bool enabled = true;
Hitbox hitbox;
};
struct Scripting {
entity_funcs_set funcsset;
scriptenv env;
};
class Level;
class Assets;
class LineBatch;
class ModelBatch;
class Frustum;
class Rig;
class Entities;
class Entity {
Entities& entities;
entityid_t id;
entt::registry& registry;
const entt::entity entity;
public:
Entity(Entities& entities, entityid_t id, entt::registry& registry, const entt::entity entity)
: entities(entities), id(id), registry(registry), entity(entity) {}
entityid_t getID() const {
return id;
}
bool isValid() const {
return registry.valid(entity);
}
const EntityDef& getDef() const {
return registry.get<EntityId>(entity).def;
}
Transform& getTransform() const {
return registry.get<Transform>(entity);
}
Rigidbody& getRigidbody() const {
return registry.get<Rigidbody>(entity);
}
Scripting& getScripting() const {
return registry.get<Scripting>(entity);
}
entityid_t getUID() const {
return registry.get<EntityId>(entity).uid;
}
entt::entity getHandler() const {
return entity;
}
void destroy();
};
class Entities {
entt::registry registry;
Level* level;
std::unordered_map<entityid_t, entt::entity> entities;
entityid_t nextID = 1;
public:
Entities(Level* level);
void clean();
void updatePhysics(float delta);
void update();
void renderDebug(LineBatch& batch);
void render(Assets* assets, ModelBatch& batch, Frustum& frustum);
entityid_t spawn(EntityDef& def, glm::vec3 pos);
std::optional<Entity> get(entityid_t id) {
const auto& found = entities.find(id);
if (found != entities.end() && registry.valid(found->second)) {
return Entity(*this, id, registry, found->second);
}
return std::nullopt;
}
void despawn(entityid_t id);
inline size_t size() const {
return entities.size();
}
};
#endif // OBJECTS_ENTITIES_HPP_