Momentum-Apps/flip_world/engine/level.h

#pragma once
#include <stddef.h>
#include "entity.h"

#ifdef __cplusplus
extern "C"
{
#endif

    typedef struct GameManager GameManager;

    typedef struct
    {
        void (*alloc)(Level *level, GameManager *manager, void *context);
        void (*free)(Level *level, GameManager *manager, void *context);
        void (*start)(Level *level, GameManager *manager, void *context);
        void (*stop)(Level *level, GameManager *manager, void *context);
        size_t context_size;
    } LevelBehaviour;

    /**
     * @brief Remove all entities from the level
     *
     * @param level level instance
     */
    void level_clear(Level *level);

    /**
     * @brief Add an entity to the level
     *
     * @param level level instance
     * @param behaviour entity behaviour
     * @return Entity*
     */
    Entity *level_add_entity(Level *level, const EntityDescription *behaviour);

    /**
     * @brief Remove an entity from the level
     *
     * @param level level instance
     * @param entity entity to remove
     */
    void level_remove_entity(Level *level, Entity *entity);

    /**
     * @brief Send an event to all entities of a certain type in the level
     *
     * @param level level instance
     * @param sender entity that sends the event
     * @param receiver_desc entity description that will receive the event, NULL for all entities
     * @param type event type
     * @param value event value
     */
    void level_send_event(
        Level *level,
        Entity *sender,
        const EntityDescription *receiver_desc,
        uint32_t type,
        EntityEventValue value);

#ifdef __cplusplus
}
#endif