source: neercs/trunk/src/screensaver.c @ 2447 Tweet

/*
 *  neercs        console-based window manager
 *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
 *                2008 Jean-Yves Lamoureux <jylam@lnxscene.org>
 *                All Rights Reserved
 *
 *  $Id: main.c 2401 2008-06-15 12:50:12Z jylam $
 *
 *  This program is free software. It comes without any warranty, to
 *  the extent permitted by applicable law. You can redistribute it
 *  and/or modify it under the terms of the Do What The Fuck You Want
 *  To Public License, Version 2, as published by Sam Hocevar. See
 *  http://sam.zoy.org/wtfpl/COPYING for more details.
 */

#include "config.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <signal.h>
#include <sys/wait.h>
#include <errno.h>
#include <unistd.h>

#include <cucul.h>
#include <caca.h>

#include "neercs.h"

void draw_screensaver(cucul_canvas_t *cv,
                      caca_display_t *dp,
                      struct screen_list *screen_list)
{
    screensaver_flying_toasters(cv, dp, screen_list);
}


#define COUNT 15
#define PRECISION 100

char toaster1_text[] = {
"      __._ \n"
"   .-'== _',\n"
"  <|_= .-'  |\n"
"   | --|   \\'.-_ \n"
"   |   | \\  \" _.\n"
"    `-_|.-\\_.-\n"};

char toaster2_text[] = {
"      __._ \n"
"   .-'== _',\n"
"  \\|_= .-'  |\n"
"   | --|  __'-.\n"
"   |   | ___.-\n"
"    `-_|.-\n"
};

char toaster3_text[] = {
"   _- __._\n"
"  /.-'== _',_.-.\n"
"  \\|_= .-'/  _.'\n"
"   | --| / .-\n"
"   |   |  _.|\n"
"    `-_|.-\n"};



void screensaver_flying_toasters(cucul_canvas_t *cv,
                                 caca_display_t *dp,
                                 struct screen_list *screen_list)
{
    static int x[COUNT], y[COUNT], s[COUNT];
    static int inited = 0;
    cucul_canvas_t **toaster;

    int i, w, h;

    toaster = (cucul_canvas_t **)malloc(sizeof(cucul_canvas_t *));
    toaster[0] = cucul_create_canvas(0, 0);
    toaster[1] = cucul_create_canvas(0, 0);
    toaster[2] = cucul_create_canvas(0, 0);

    w = cucul_get_canvas_width(cv);
    h = cucul_get_canvas_height(cv);


    cucul_set_color_ansi(cv, CUCUL_WHITE, CUCUL_BLACK);
    cucul_clear_canvas(cv);

    cucul_import_memory(toaster[0], toaster1_text, strlen(toaster1_text), "ansi");
    cucul_import_memory(toaster[1], toaster2_text, strlen(toaster2_text), "ansi");
    cucul_import_memory(toaster[2], toaster3_text, strlen(toaster3_text), "ansi");

    if(!inited)
    {
        for(i = 0; i < COUNT; i++)
        {
            x[i] = (rand()%w) * PRECISION;
            y[i] = (rand()%h) * PRECISION;
            s[i] = (rand()%3) * PRECISION;
        }
        inited = 1;
    }

    for(i = 0; i < COUNT; i++)
    {
        cucul_blit(cv, x[i]/PRECISION, y[i]/PRECISION, toaster[s[i]/PRECISION], NULL);

        x[i]-=40;
        y[i]+=10;

        if((x[i]/PRECISION) + cucul_get_canvas_width(toaster[s[i]/PRECISION])<=0)
            x[i] = ((rand()%w)+w) * PRECISION;
        if((y[i]/PRECISION)>=h)
            y[i] = ((rand()%h)-h) * PRECISION;

        s[i] = ((s[i]+24)%(3*PRECISION));
    }
}