#include "ItemEntity.h"
#include "Game.h"
#include "EntityChangedUpdate.h"


ItemEntity::ItemEntity( Framework::Vec3<float> location, int dimensionId, int entityId )
    : Entity( ItemEntityType::INSTANCE, location, dimensionId, entityId )
{
    slot = new ItemSlot( __INT32_MAX__, 0, 0, 0, ANY_DIRECTION, 0 );
    addSlot( slot );
    faceOffset = { 0.f, 0.f, 0.f };
    maxHP = 10;
    currentHP = 10;
    stamina = 10;
    maxStamina = 10;
    hunger = 10;
    maxHunger = 10;
    thirst = 10;
    maxThirst = 10;
    targetDistanceLimit = 4;
}

void ItemEntity::tick( const Dimension* zDimension )
{
    if( slot->zStack() == 0 && !removed )
        throw "Illegal State exception";
    // add speed to next entity with free inventory
    Entity* zOther = Game::INSTANCE->zNearestEntity( currentDimensionId, location, [this]( Entity* zOther ) {
        return zOther != this && zOther->numberOfAddableItems( slot->zStack(), NO_DIRECTION );
    } );
    bool found = 1;
    if( zOther )
    {
        float d = location.abstand( zOther->getPosition() );
        if( d < 0.5f )
        {
            // add items of this entity to the other entity
            zOther->interactWith( this, NO_DIRECTION ).pullItems( slot->getNumberOfItems(), 0 );
            if( slot->getNumberOfItems() == 0 )
                onDeath();
        }
        else if( d < 3.f )
        {
            // accelerate towards of the other entity
            speed += (zOther->getPosition() - location).normalize() * (20 / (d + 0.5f)) / 30.f;
        }
        else
            found = 0;
    }
    else
        found = 0;
    if( !found )
    {
        speed -= speed / 30.f;
        if( speed.getLength() < 0.2f )
            speed = { 0.f, 0.f, 0.f };
    }
    Entity::tick( zDimension );
}

void ItemEntity::api( Framework::StreamReader* zRequest, NetworkResponse* zResponse )
{

}

void ItemEntity::onFall( float collisionSpeed )
{
    if( collisionSpeed >= 50.f )
        this->currentHP = 0;
}


ItemEntityType::ItemEntityType()
    : EntityType( ID )
{}

Entity* ItemEntityType::createEntity( Framework::Vec3<float> position, int dimensionId, int entityId ) const
{
    return new ItemEntity( position, dimensionId, entityId );
}