/*

    csol - CURSES solitaire

    Copyright (C) 2018  Ian Cowburn (ianc@noddybox.co.uk)

    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/>.

    -------------------------------------------------------------------------

    General purpose utilities

*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <curses.h>

#include "util.h"

void Fatal(const char *p)
{
    endwin();
    fprintf(stderr, "%s\n", p);
    exit(EXIT_FAILURE);
}

void Centre(int y, const char *p)
{
    size_t l = strlen(p);

    mvaddstr(y, COLS / 2 - l / 2, p);
}

void CentreSkipSpaces(int y, const char *p)
{
    size_t l = strlen(p);
    int x;

    x = COLS / 2 - l / 2;

    while(*p)
    {
        if (*p == ' ')
        {
            x++;
        }
        else
        {
            mvaddch(y, x++, *p);
        }

        p++;
    }
}

const char *CardName(Card c)
{
    static char buff[32];
    static const char *num[]=
    {
        "ERR",
        " A",
        " 2",
        " 3",
        " 4",
        " 5",
        " 6",
        " 7",
        " 8",
        " 9",
        "10",
        " J",
        " Q",
        " K"
    };

    sprintf(buff, "%s%c", num[c.value], c.suit);

    return buff;
}

void DrawCard(int y, int x, int face_down, Card c)
{
    if (c.suit == NoSuit)
    {
        mvaddstr(y, x, "   ");
    }
    else
    {
        if (face_down)
        {
            mvaddstr(y, x, "###");
        }
        else
        {
            if (c.suit == Spade || c.suit == Club)
            {
                attron(A_REVERSE);
            }

            mvaddstr(y, x, CardName(c));

            if (c.suit == Spade || c.suit == Club)
            {
                attroff(A_REVERSE);
            }
        }
    }
}

double DRand()
{
    return (double)(rand() % 1000) / 1000.0;
}

static void Plot3D(double x, double y, double z, char glyph)
{
    int ix;
    int iy;

    ix = COLS/2 + x / (z / 30.0);
    iy = LINES/2 + y / (z / 30.0);

    mvaddch(iy, ix, glyph);
}

void WinScreen()
{
    static const char *text[] =
    {
        "#   #  ##  #  #   #   #  ##  #  #",
        " # #  #  # #  #   #   # #  # ## #",
        "  #   #  # #  #   # # # #  # # ##",
        "  #   #  # #  #   ## ## #  # #  #",
        "  #    ##   ##    #   #  ##  #  #",
        NULL,
    };

    static const int NO_STAR = 100;

    typedef struct
    {
        double x,y,z;
    } Star;
    
    Star *star;

    int f;

    star = malloc(sizeof *star * NO_STAR);

    if (!star)
    {
        Fatal("Memory allocation failed");
    }

    for(f = 0; f < NO_STAR; f++)
    {
        star[f].x = rand() % 1000 - 500;
        star[f].y = rand() % 1000 - 500;
        star[f].z = rand() % 1000;
    }

    halfdelay(1);

    erase();

    while(getch() != ' ')
    {
        for(f = 0; f < NO_STAR; f++)
        {
            Plot3D(star[f].y, star[f].x, star[f].z, ' ');

            star[f].z -= 30;

            if (star[f].z < 0)
            {
                star[f].x = rand() % 1000 - 500;
                star[f].y = rand() % 1000 - 500;
                star[f].z = 1000;
            }
        }

        for(f = 0; f < NO_STAR; f++)
        {
            Plot3D(star[f].y, star[f].x, star[f].z, '.');
        }

        for(f = 0 ; text[f]; f++)
        {
            int x = COLS / 2 - strlen(text[f]) / 2;
            int i;

            for(i = 0; text[f][i]; i++)
            {
                if (text[f][i] != ' ')
                {
                    mvaddch(f + 4, x++, text[f][i]);
                }
                else
                {
                    x++;
                }
            }
        }

        CentreSkipSpaces(11, "PRESS SPACE");

        refresh();
    }

    nocbreak();
    cbreak();
    erase();

    free(star);
}


/*
vim: ai sw=4 ts=8 expandtab
*/