File: sl.c

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/*========================================
 *    sl.c:
 *	Copyright 1993,1998 Toyoda Masashi 
 *		(toyoda@is.titech.ac.jp)
 *	Last Modified: 1998/ 7/22
 *========================================
 */
/* sl version 3.03 : add usleep(20000)                                       */
/*                                              by Toyoda Masashi 1998/ 7/22 */
/* sl version 3.02 : D51 flies! Change options.                              */
/*                                              by Toyoda Masashi 1993/ 1/19 */
/* sl version 3.01 : Wheel turns smoother                                    */
/*                                              by Toyoda Masashi 1992/12/25 */
/* sl version 3.00 : Add d(D51) option                                       */
/*                                              by Toyoda Masashi 1992/12/24 */
/* sl version 2.02 : Bug fixed.(dust remains in screen)                      */
/*                                              by Toyoda Masashi 1992/12/17 */
/* sl version 2.01 : Smoke run and disappear.                                */
/*                   Change '-a' to accident option.			     */
/*                                              by Toyoda Masashi 1992/12/16 */
/* sl version 2.00 : Add a(all),l(long),F(Fly!) options.                     */
/* 						by Toyoda Masashi 1992/12/15 */
/* sl version 1.02 : Add turning wheel.                                      */
/*					        by Toyoda Masashi 1992/12/14 */
/* sl version 1.01 : Add more complex smoke.                                 */
/*                                              by Toyoda Masashi 1992/12/14 */
/* sl version 1.00 : SL runs vomitting out smoke.                            */
/*						by Toyoda Masashi 1992/12/11 */

#include <curses.h>
#include <signal.h>
#include <unistd.h>
#include "sl.h"

int ACCIDENT  = 0;
int LOGO      = 0;
int FLY       = 0;
int INTR      = 0;

int my_mvaddstr(int y, int x, char *str)
{
    for ( ; x < 0; ++x, ++str)
	if (*str == '\0')  return ERR;
    for ( ; *str != '\0'; ++str, ++x)
	if (mvaddch(y, x, *str) == ERR)  return ERR;
    return OK;
}

void option(char *str)
{
    extern int ACCIDENT, FLY;

    while (*str != '\0') {
	switch (*str++) {
	    case 'a': ACCIDENT = 1; break;
	    case 'F': FLY      = 1; break;
	    case 'l': LOGO     = 1; break;
	    case 'e': INTR     = 1; break;
	    default:                break;
	}
    }
}

int main(int argc, char *argv[])
{
    int x, i;

    for (i = 1; i < argc; ++i) {
	if (*argv[i] == '-') {
	    option(argv[i] + 1);
	}
    }
    initscr();
    if (INTR == 0) {
	signal(SIGINT, SIG_IGN);
    }
    noecho();
    leaveok(stdscr, TRUE);
    scrollok(stdscr, FALSE);
    (void)curs_set(0);

    for (x = COLS - 1; ; --x) {
	if (LOGO == 0) {
	    if (add_D51(x) == ERR) break;
	} else {
	    if (add_sl(x) == ERR) break;
	}
	refresh();
	usleep(20000);
    }
    mvcur(0, COLS - 1, LINES - 1, 0);
    (void)curs_set(1);
    endwin();

    return 0;
}


int add_sl(int x)
{
    static char *sl[LOGOPATTERNS][LOGOHIGHT + 1]
	= {{LOGO1, LOGO2, LOGO3, LOGO4, LWHL11, LWHL12, DELLN},
	   {LOGO1, LOGO2, LOGO3, LOGO4, LWHL21, LWHL22, DELLN},
	   {LOGO1, LOGO2, LOGO3, LOGO4, LWHL31, LWHL32, DELLN},
	   {LOGO1, LOGO2, LOGO3, LOGO4, LWHL41, LWHL42, DELLN},
	   {LOGO1, LOGO2, LOGO3, LOGO4, LWHL51, LWHL52, DELLN},
	   {LOGO1, LOGO2, LOGO3, LOGO4, LWHL61, LWHL62, DELLN}};

    static char *coal[LOGOHIGHT + 1]
	= {LCOAL1, LCOAL2, LCOAL3, LCOAL4, LCOAL5, LCOAL6, DELLN};

    static char *car[LOGOHIGHT + 1]
	= {LCAR1, LCAR2, LCAR3, LCAR4, LCAR5, LCAR6, DELLN};

    int i, y, py1 = 0, py2 = 0, py3 = 0;
    
    if (x < - LOGOLENGTH)  return ERR;
    y = LINES / 2 - 3;

    if (FLY == 1) {
	y = (x / 6) + LINES - (COLS / 6) - LOGOHIGHT;
	py1 = 2;  py2 = 4;  py3 = 6;
    }
    for (i = 0; i <= LOGOHIGHT; ++i) {
	my_mvaddstr(y + i, x, sl[(LOGOLENGTH + x) / 3 % LOGOPATTERNS][i]);
	my_mvaddstr(y + i + py1, x + 21, coal[i]);
	my_mvaddstr(y + i + py2, x + 42, car[i]);
	my_mvaddstr(y + i + py3, x + 63, car[i]);
    }
    if (ACCIDENT == 1) {
	add_man(y + 1, x + 14);
	add_man(y + 1 + py2, x + 45);  add_man(y + 1 + py2, x + 53);
	add_man(y + 1 + py3, x + 66);  add_man(y + 1 + py3, x + 74);
    }
    add_smoke(y - 1, x + LOGOFUNNEL);
    return OK;
}


int add_D51(int x)
{
    static char *d51[D51PATTERNS][D51HIGHT + 1]
	= {{D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL11, D51WHL12, D51WHL13, D51DEL},
	   {D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL21, D51WHL22, D51WHL23, D51DEL},
	   {D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL31, D51WHL32, D51WHL33, D51DEL},
	   {D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL41, D51WHL42, D51WHL43, D51DEL},
	   {D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL51, D51WHL52, D51WHL53, D51DEL},
	   {D51STR1, D51STR2, D51STR3, D51STR4, D51STR5, D51STR6, D51STR7,
	    D51WHL61, D51WHL62, D51WHL63, D51DEL}};
    static char *coal[D51HIGHT + 1]
	= {COAL01, COAL02, COAL03, COAL04, COAL05,
	   COAL06, COAL07, COAL08, COAL09, COAL10, COALDEL};

    int y, i, dy = 0;

    if (x < - D51LENGTH)  return ERR;
    y = LINES / 2 - 5;

    if (FLY == 1) {
	y = (x / 7) + LINES - (COLS / 7) - D51HIGHT;
	dy = 1;
    }
    for (i = 0; i <= D51HIGHT; ++i) {
	my_mvaddstr(y + i, x, d51[(D51LENGTH + x) % D51PATTERNS][i]);
	my_mvaddstr(y + i + dy, x + 53, coal[i]);
    }
    if (ACCIDENT == 1) {
	add_man(y + 2, x + 43);
	add_man(y + 2, x + 47);
    }
    add_smoke(y - 1, x + D51FUNNEL);
    return OK;
}


int add_man(int y, int x)
{
    static char *man[2][2] = {{"", "(O)"}, {"Help!", "\\O/"}};
    int i;

    for (i = 0; i < 2; ++i) {
	my_mvaddstr(y + i, x, man[(LOGOLENGTH + x) / 12 % 2][i]);
    }

    return 0;
}


int add_smoke(int y, int x)
#define SMOKEPTNS	16
{
    static struct smokes {
	int y, x;
	int ptrn, kind;
    } S[1000];
    static int sum = 0;
    static char *Smoke[2][SMOKEPTNS]
	= {{"(   )", "(    )", "(    )", "(   )", "(  )",
	    "(  )" , "( )"   , "( )"   , "()"   , "()"  ,
	    "O"    , "O"     , "O"     , "O"    , "O"   ,
	    " "                                          },
	   {"(@@@)", "(@@@@)", "(@@@@)", "(@@@)", "(@@)",
	    "(@@)" , "(@)"   , "(@)"   , "@@"   , "@@"  ,
	    "@"    , "@"     , "@"     , "@"    , "@"   ,
	    " "                                          }};
    static char *Eraser[SMOKEPTNS]
	=  {"     ", "      ", "      ", "     ", "    ",
	    "    " , "   "   , "   "   , "  "   , "  "  ,
	    " "    , " "     , " "     , " "    , " "   ,
	    " "                                          };
    static int dy[SMOKEPTNS] = { 2,  1, 1, 1, 0, 0, 0, 0, 0, 0,
				 0,  0, 0, 0, 0, 0             };
    static int dx[SMOKEPTNS] = {-2, -1, 0, 1, 1, 1, 1, 1, 2, 2,
				 2,  2, 2, 3, 3, 3             };
    int i;

    if (x % 4 == 0) {
	for (i = 0; i < sum; ++i) {
	    my_mvaddstr(S[i].y, S[i].x, Eraser[S[i].ptrn]);
	    S[i].y    -= dy[S[i].ptrn];
	    S[i].x    += dx[S[i].ptrn];
	    S[i].ptrn += (S[i].ptrn < SMOKEPTNS - 1) ? 1 : 0;
	    my_mvaddstr(S[i].y, S[i].x, Smoke[S[i].kind][S[i].ptrn]);
	}
	my_mvaddstr(y, x, Smoke[sum % 2][0]);
	S[sum].y = y;    S[sum].x = x;
	S[sum].ptrn = 0; S[sum].kind = sum % 2;
	sum ++;
    }

   return 0;
}