/*
 * Open Surge Engine
 * screen.c - scripting system: screen routines
 * Copyright (C) 2008-2023  Alexandre Martins <alemartf@gmail.com>
 * http://opensurge2d.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <surgescript.h>
#include <string.h>
#include "../util/util.h"
#include "../core/video.h"

/* private */
static surgescript_var_t* fun_main(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
static surgescript_var_t* fun_destroy(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
static surgescript_var_t* fun_spawn(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
static surgescript_var_t* fun_getwidth(surgescript_object_t* object, const surgescript_var_t** param, int num_params);
static surgescript_var_t* fun_getheight(surgescript_object_t* object, const surgescript_var_t** param, int num_params);

/*
 * scripting_register_screen()
 * Register the Screen object
 */
void scripting_register_screen(surgescript_vm_t* vm)
{
    surgescript_vm_bind(vm, "Screen", "state:main", fun_main, 0);
    surgescript_vm_bind(vm, "Screen", "destroy", fun_destroy, 0);
    surgescript_vm_bind(vm, "Screen", "spawn", fun_spawn, 1);
    surgescript_vm_bind(vm, "Screen", "get_width", fun_getwidth, 0);
    surgescript_vm_bind(vm, "Screen", "get_height", fun_getheight, 0);
}

/* main state */
surgescript_var_t* fun_main(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
{
    /* do nothing */
    return NULL;
}

/* destroy */
surgescript_var_t* fun_destroy(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
{
    /* not allowed */
    return NULL;
}

/* spawn */
surgescript_var_t* fun_spawn(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
{
    /* not allowed */
    return NULL;
}

/* the width of the screen, in pixels */
surgescript_var_t* fun_getwidth(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
{
    return surgescript_var_set_number(surgescript_var_create(), VIDEO_SCREEN_W);
}

/* the height of the screen, in pixels */
surgescript_var_t* fun_getheight(surgescript_object_t* object, const surgescript_var_t** param, int num_params)
{
    return surgescript_var_set_number(surgescript_var_create(), VIDEO_SCREEN_H);
}