/*  DreamChess
**
**  DreamChess is the legal property of its developers, whose names are too
**  numerous to list here. Please refer to the COPYRIGHT file distributed
**  with this source distribution.
**
**  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 "ui_sdlgl.h"

float fade_start;
int in_transition=FALSE;

#define SONIC_FADE_SPEED 2.0f

void set_fade_start( float start )
{
    fade_start=start;
}

int draw_fade( int inout )
{
    float amount=(gg_system_get_ticks()-fade_start)/(FADE_SPEED*1000);

    gg_colour_t col={0.0f, 0.0f, 0.0f, 1.0f-amount };

    if ( inout == FADE_OUT )
        col.a=amount;

    if (col.a > 1.0f)
        col.a = 1.0f;

    if (col.a >= 0.0f)
        gg_system_draw_filled_rect(0, 0, 640, 480, &col );

    if ( amount >= 1.0f )
        return FALSE;

    return TRUE;
}

int draw_sonic_fade( int inout )
{
    float amount=(gg_system_get_ticks()-fade_start)/(SONIC_FADE_SPEED*1000);
    int i=0;

    gg_colour_t col_red={1.0f, 0.0f, 0.0f, 1.0f };
    gg_colour_t col_blue={0.0f, 0.0f, 1.0f, 1.0f };
    gg_colour_t col_yellow={1.0f, 1.0f, 0.0f, 1.0f };
    gg_colour_t col_black={0.0f, 0.0f, 0.0f, 1.0f };
    gg_colour_t col_white={1.0f, 1.0f, 1.0f, 1.0f };

    if ( amount < 1.0f )
    {
        if ( inout == FADE_IN )
            amount=1.0f-amount;

        if ( amount < 0.7f )
            amount=(amount)/0.7f;

        else if (amount >= 0.7f )
            amount=1.0f;

        gg_system_draw_filled_rect(0, 480-(480*amount), 640, 480, &col_blue );
        gg_system_draw_filled_rect(640-(640*amount), 0, 640, (480/3), &col_yellow );

        text_draw_string( 640-(640*amount)+280, (480/3)-30, "DreamChess the chess game", 1.2f, &col_white);

        gg_system_draw_filled_rect(0, 0, (((640/3)+(480/14))*amount)-(480/14), 480, &col_red );

        for ( i=0; i<14; i++ )
        {
            draw_tri((((640/3)+(480/14))*amount)-(480/14)+2, i*(480/14)-2, 
                (((640/3)+(480/14))*amount)-(480/14)+2, i*(480/14)+(480/14)-2, 
                (((640/3)+(480/14))*amount)-(480/14)+(480/14)+2, i*(480/14)+((480/14)/2)-2,
                &col_black);

            draw_tri((((640/3)+(480/14))*amount)-(480/14), i*(480/14), 
                (((640/3)+(480/14))*amount)-(480/14), i*(480/14)+(480/14), 
                (((640/3)+(480/14))*amount)-(480/14)+(480/14), i*(480/14)+((480/14)/2), &col_red);
        }

        text_draw_string( 640-(640*amount*2)+840, 480-(480/3), "Chess Hill", 3.0f, &col_white);

        text_draw_string( (640*amount*2)-1000, 480-(480/3)-50, "Zone", 3.0f, &col_white);
        text_draw_string( (640*amount*2)-860, 480-(480/3)-60, "1", 4.0f, &col_yellow);
    }
    /*printf( "Drawing sonic fade.. :%i,%f\n", inout, amount );*/

    if ( amount >= 1.0f )
    {
        return FALSE;
    }

    return TRUE;
}

/*int draw_sonic_fade( int inout )
{
    float amount=(gg_system_get_ticks()-fade_start)/(SONIC_FADE_SPEED*1000);
    int i=0;

    gg_colour_t col_red={1.0f, 0.0f, 0.0f, 1.0f };
    gg_colour_t col_blue={0.0f, 0.0f, 1.0f, 1.0f };
    gg_colour_t col_yellow={1.0f, 1.0f, 0.0f, 1.0f };
    gg_colour_t col_black={0.0f, 0.0f, 0.0f, 1.0f };
    gg_colour_t col_white={1.0f, 1.0f, 1.0f, 1.0f };

    if ( amount <= 1.0f )
    {
        if ( amount < 0.4f )
            amount=(amount)/0.4f;
        else if ( amount < 0.7f )
            amount=1.0f;
        else if ( amount >= 0.7f )
            amount=1.0-((amount-0.7f)/0.3f);

        gg_system_draw_filled_rect(0, 480-(480*amount), 640, 480, &col_blue );
        gg_system_draw_filled_rect(640-(640*amount), 0, 640, (480/3), &col_yellow );

        text_draw_string( 640-(640*amount)+280, (480/3)-30, "DreamChess the chess game", 1.2f, &col_white);

        gg_system_draw_filled_rect(0, 0, (((640/3)+(480/14))*amount)-(480/14), 480, &col_red );

        for ( i=0; i<14; i++ )
        {
            draw_tri((((640/3)+(480/14))*amount)-(480/14)+2, i*(480/14)+2, 
                (((640/3)+(480/14))*amount)-(480/14)+2, i*(480/14)+(480/14)+2, 
                (((640/3)+(480/14))*amount)-(480/14)+(480/14)+2, i*(480/14)+((480/14)/2)+2,
                &col_black);

            draw_tri((((640/3)+(480/14))*amount)-(480/14), i*(480/14), 
                (((640/3)+(480/14))*amount)-(480/14), i*(480/14)+(480/14), 
                (((640/3)+(480/14))*amount)-(480/14)+(480/14), i*(480/14)+((480/14)/2), &col_red);
        }

        text_draw_string( 640-(640*amount*2)+840, 480-(480/3), "Chess Hill", 3.0f, &col_white);

        text_draw_string( (640*amount*2)-1000, 480-(480/3)-50, "Zone", 3.0f, &col_white);
        text_draw_string( (640*amount*2)-860, 480-(480/3)-60, "1", 4.0f, &col_yellow);
    }

    if ( amount > 1.0f )
    {
        return FALSE;
    }

    return TRUE;
}*/
