/*   
 * Copyright (C) 2003 Robert Kooima
 *
 * NEVERBALL 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 2  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.
 */

#include "glext.h"
#include "state.h"
#include "config.h"

/*---------------------------------------------------------------------------*/

static float  state_time;
static struct state *state;

float time_state(void)
{
    return state_time;
}

void init_state(struct state *st)
{
    state = st;
}

int goto_state(struct state *st)
{
    if (state && state->leave)
        state->leave(state->gui_id);

    state      = st;
    state_time =  0;

    if (state && state->enter)
        state->gui_id = state->enter();

    return 1;
}

/*---------------------------------------------------------------------------*/

void st_paint(void)
{
    int stereo  = config_get_d(CONFIG_STEREO);

    if (state && state->paint)
    {
        if (stereo)
        {
            glDrawBuffer(GL_BACK_LEFT);
            config_clear();
            state->paint(state->gui_id, (float) (+stereo));

            glDrawBuffer(GL_BACK_RIGHT);
            config_clear();
            state->paint(state->gui_id, (float) (-stereo));
        }
        else
        {
            config_clear();
            state->paint(state->gui_id, 0.0f);
        }
    }
}

void st_timer(float dt)
{
    state_time += dt;

    if (state && state->timer)
        state->timer(state->gui_id, dt);
}

void st_point(int x, int y, int dx, int dy)
{
    if (state && state->point)
        state->point(state->gui_id, x, y, dx, dy);
}

void st_stick(int a, int k)
{
    if (state && state->stick)
        state->stick(state->gui_id, a, k);
}

/*---------------------------------------------------------------------------*/

int st_click(int b, int d)
{
    return (state && state->click) ? state->click(b, d) : 1;
}

int st_keybd(int c, int d)
{
    return (state && state->keybd) ? state->keybd(c, d) : 1;
}

int st_buttn(int b, int d)
{
    return (state && state->buttn) ? state->buttn(b, d) : 1;
}

/*---------------------------------------------------------------------------*/