#ifndef __GE_PHYSICS_SYSTEM_H__
#define __GE_PHYSICS_SYSTEM_H__ 

#include "ge_entity.h"
#include "ge_physics_component.h"
#include <pynic_log/pynic_log.h>

typedef struct ge_physics_system {
    ge_ecs_storage_t* ecs;
} ge_physics_system_t;

#define _GE_PHYSICS_MASK (GE_PHYSICS_MASK | GE_COMPONENT_ACVIVE)

static inline void
ge_physics_system_run_all(ge_physics_system_t* ctx) {
    Assert(ctx != NULL);
    ge_ecs_storage_t* ecs = ctx->ecs;
    Assert(ecs != NULL);
    for (int i = 1; i <= ecs->count && i < GE_ECS_MAX; ++i) {
        ge_entity_t* entity = &ecs->entities[i];
        ge_ecs_mask_t mask = entity->component_mask;
        if ((mask & _GE_PHYSICS_MASK) != _GE_PHYSICS_MASK) continue;

        ge_physics_component_t* comp = &entity->physics_body;
        Assert(comp != NULL);
        ge_physics_component_type_t type= comp->type;

        if (type & GE_PHYSICS_COMP_TYPE_ACCELERATION) {
            comp->velocity.x += comp->acceleration.x >> GE_PHYSICS_ACCELERATION_BIT;
            comp->velocity.y += comp->acceleration.y >> GE_PHYSICS_ACCELERATION_BIT;
        }
        if (type & GE_PHYSICS_COMP_TYPE_VELOCITY) {
            entity->position.x += comp->velocity.x >> GE_PHYSICS_VELOCITY_BIT;
            entity->position.y += comp->velocity.y >> GE_PHYSICS_VELOCITY_BIT;
        }
    }
}

#endif // __GE_PHYSICS_SYSTEM_H__