/* *******************************************************************
 *  Includes
 * ******************************************************************/

#include "BaseUnit.h"
#include "Camera.h"
#include "System.h"
#include "Sprite.h"
#include <stdbool.h>
#include <stdint.h>
#include <Gamebuino.h>

/* *******************************************************************
 *  Defines
 * ******************************************************************/

/* *******************************************************************
 *  Types definition
 * ******************************************************************/

/* *******************************************************************
 *  Global variables definition
 * ******************************************************************/

/* *******************************************************************
 *  Local variables definition
 * ******************************************************************/

static const Camera* cam;

/* *******************************************************************
 *  Local prototypes declaration
 * ******************************************************************/

/* *******************************************************************
 *  Functions definition
 * ******************************************************************/

/*****************************************************************//**
 *
 * \brief   Constructor for BaseUnit class.
 *
 *********************************************************************/
BaseUnit::BaseUnit(void) :
_hp(0),
_alive(false),
_selected(false),
_x(0),
_y(0)
{
}

/*****************************************************************//**
 *
 * \brief   This function is executed when user wants to create
 *          a new object derived from BaseUnit, and this function
 *          sets default parameters for a BaseUnit abstract object.
 *
 *********************************************************************/
void BaseUnit::create(const uint16_t x, const uint16_t y)
{
    _alive = true;
    _x = x;
    _y = y;
}

/*****************************************************************//**
 *
 * \brief   Periodical handler for BaseUnit class.
 *
 *********************************************************************/
void BaseUnit::handler(void)
{
}

/*****************************************************************//**
 *
 * \brief   This function sets global camera for all BaseUnit
 *          instances.
 *
 *********************************************************************/
void BaseUnit::setCamera(const Camera* const c)
{
    cam = c;
}

/*****************************************************************//**
 *
 * \brief   Periodical draw handler for BaseUnit class.
 *
 *********************************************************************/
void BaseUnit::drawHandler(const uint8_t* const pu8SprData)
{
    if (isSelected())
    {
        /* Retrieve unit width from sprite data. */
        const uint8_t w = Sprite::getWidth(pu8SprData);

        /* Retrieve unit height from sprite data. */
        const uint8_t h = Sprite::getHeight(pu8SprData);

        if (cam != NULL)
        {
            const uint8_t x = cam->getX(_x - w);
            const uint8_t y = cam->getY(_y - h);

            gb.display.drawRoundRect(x, y, w << 1, h << 1, 2);
        }
    }
    else
    {
        /* BaseUnit object is not selected. Exit. */
    }
}

/*****************************************************************//**
 *
 * \brief   Returns Unit alive flag.
 *
 * \return  Returns true if Unit object is alive, false otherwise.
 *
 *********************************************************************/
bool BaseUnit::isAlive(void)
{
    return _alive;
}

/*****************************************************************//**
 *
 * \brief   Returns Unit selected flag.
 *
 * \return  Returns true if Unit object is selected, false otherwise.
 *
 *********************************************************************/
bool BaseUnit::isSelected(void)
{
    return _selected;
}

/*****************************************************************//**
 *
 * \brief   This function selects/deselects a \ref BaseUnit object
 *          according to requested state.
 *
 * \param   bSelect
 *              If true, unit must be selected. Otherwise, unit
 *              must be deselected.
 *
 *********************************************************************/
void BaseUnit::setSelected(const bool bSelect)
{
    _selected = bSelect;
}

/*****************************************************************//**
 *
 * \brief   Returns Unit X coordinates.
 *
 * \return  Returns Unit X coordinates.
 *
 *********************************************************************/
uint16_t BaseUnit::getX(void)
{
    return _x;
}

/*****************************************************************//**
 *
 * \brief   Returns Unit Y coordinates.
 *
 * \return  Returns Unit Y coordinates.
 *
 *********************************************************************/
uint16_t BaseUnit::getY(void)
{
    return _y;
}