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tdegames/kpat/freecell-solver/main.c

860 lines
26 KiB

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "fcs_cl.h"
struct freecell_solver_display_information_context_struct
{
int debug_iter_state_output;
int freecells_num;
int stacks_num;
int decks_num;
int parseable_output;
int canonized_order_output;
int display_10_as_t;
int display_parent_iter_num;
int debug_iter_output_on;
int display_moves;
int display_states;
int standard_notation;
};
typedef struct freecell_solver_display_information_context_struct freecell_solver_display_information_context_t;
static void init_debug_context(
freecell_solver_display_information_context_t * dc
)
{
dc->parseable_output = 0;
dc->canonized_order_output = 0;
dc->display_10_as_t = 0;
dc->display_parent_iter_num = 0;
dc->display_moves = 0;
dc->display_states = 1;
dc->standard_notation = 0;
}
static void my_iter_handler(
void * user_instance,
int iter_num,
int depth,
void * ptr_state,
int parent_iter_num,
void * lp_context
)
{
freecell_solver_display_information_context_t * context;
context = (freecell_solver_display_information_context_t*)lp_context;
fprintf(stdout, "Iteration: %i\n", iter_num);
fprintf(stdout, "Depth: %i\n", depth);
fprintf(stdout, "Stored-States: %i\n",
freecell_solver_user_get_num_states_in_collection(user_instance)
);
if (context->display_parent_iter_num)
{
fprintf(stdout, "Parent Iteration: %i\n", parent_iter_num);
}
fprintf(stdout, "\n");
if (context->debug_iter_state_output)
{
char * state_string =
freecell_solver_user_iter_state_as_string(
user_instance,
ptr_state,
context->parseable_output,
context->canonized_order_output,
context->display_10_as_t
);
printf("%s\n---------------\n\n\n", state_string);
free((void*)state_string);
}
#ifdef MYDEBUG
{
fcs_card_t card;
int ret;
char card_str[10];
ret = fcs_check_state_validity(
ptr_state_with_locations,
context->freecells_num,
context->stacks_num,
context->decks_num,
&card
);
if (ret != 0)
{
fcs_card_perl2user(card, card_str, context->display_10_as_t);
if (ret == 3)
{
fprintf(stdout, "%s\n",
"There's an empty slot in one of the stacks."
);
}
else
{
fprintf(stdout, "%s%s.\n",
((ret == 2)? "There's an extra card: " : "There's a missing card: "),
card_str
);
}
exit(-1);
}
}
#endif
}
struct help_screen_struct
{
char * key;
char * screen;
};
typedef struct help_screen_struct help_screen_t;
help_screen_t help_screens[] = {
{
"configs",
"These configurations are usually faster than the unmodified run:\n"
"\n"
" fc-solve -l cool-jives\n"
" fc-solve -l john-galt-line\n"
"\n"
"Or if you want an accurate verdict:\n"
"\n"
" fc-solve -l fools-gold\n"
"\n"
"If you want to try constructing your own configurations refer to the\n"
"USAGE file in the Freecell Solver distribution\n"
},
{
"options",
"fc-solve [options] board_file\n"
"\n"
"If board_file is - or unspecified reads standard input\n"
"\n"
"Available Options:\n"
"-h --help\n"
" display the default help screen\n"
"--help-summary\n"
" display the summary help screen\n"
"-i --iter-output\n"
" display the iteration number and depth in every state that is checked\n"
"-s --state-output\n"
" also output the state in every state that is checked\n"
"-p --parseable-output\n"
" Output the states in a format that is friendly to perl, grep and\n"
" friends.\n"
"-c --canonized-order-output\n"
" Output the stacks and freecells according to their canonic order.\n"
" (That means that stacks and freecells won't retain their place.)\n"
"-t --display-10-as-t\n"
" Display the card 10 as a capital T instead of \"10\".\n"
"-m --display-moves\n"
" Display the moves instead of the intermediate states.\n"
"-sam --display-states-and-moves \n"
" Display both intermediate states and moves.\n"
"-sn --standard-notation\n"
" Display the moves in standard (non-verbose) notation.\n"
" (Applicable only if -m was specified)\n"
"-snx --standard-notation-extended\n"
" Display the moves in extended standard notation while specifying the\n"
" number of cards moved if applicable\n"
"-pi --display-parent-iter \n"
" Display the index of the parent iteration of each state in the\n"
" run-time dump.\n"
"\n"
"--freecells-num [Freecells\' Number]\n"
" The number of freecells present in the board.\n"
"--stacks-num [Stacks\' Number]\n"
" The number of stacks present in the board.\n"
"--decks-num [Decks\' Number]\n"
" The number of decks in the board.\n"
"\n"
"--sequences-are-built-by {suit|alternate_color|rank}\n"
" Specifies the type of sequence\n"
"--sequence-move {limited|unlimited}\n"
" Specifies whether the sequence move is limited by the number of\n"
" freecells or vacant stacks or not.\n"
"--empty-stacks-filled-by {kings|none|all}\n"
" Specifies which cards can fill empty stacks.\n"
"\n"
"--game [game] --preset [game] -g [game]\n"
" Specifies the type of game. (Implies several of the game settings\n"
" options above.). Available presets:\n"
" bakers_dozen - Baker\'s Dozen\n"
" bakers_game - Baker\'s Game\n"
" beleaguered_castle - Beleaguered Castle\n"
" citadel - Citadel\n"
" cruel - Cruel\n"
" der_katz - Der Katzenschwanz\n"
" die_schlange - Die Schlange\n"
" eight_off - Eight Off\n"
" fan - Fan\n"
" forecell - Forecell\n"
" freecell - Freecell\n"
" good_measure - Good Measure\n"
" ko_bakers_game - Kings\' Only Baker\'s Game\n"
" relaxed_freecell - Relaxed Freecell\n"
" relaxed_seahaven - Relaxed Seahaven Towers\n"
" seahaven - Seahaven Towers\n"
" simple_simon - Simple Simon\n"
" streets_and_alleys - Streets and Alleys\n"
"\n"
"-md [depth] --max-depth [depth] \n"
" Specify a maximal search depth for the solution process.\n"
"-mi [iter_num] --max-iters [iter_num] \n"
" Specify a maximal number of iterations number.\n"
"-mss [states_num] --max-stored-states [states_num] \n"
" Specify the maximal number of states stored in memory.\n"
"\n"
"-to [tests_order] --tests-order [tests_order] \n"
" Specify a test order string. Each test is represented by one character.\n"
" Valid tests:\n"
" Freecell Tests:\n"
"\n"
" '0' - put top stack cards in the foundations.\n"
" '1' - put freecell cards in the foundations.\n"
" '2' - put freecell cards on top of stacks.\n"
" '3' - put non-top stack cards in the foundations.\n"
" '4' - move stack cards to different stacks.\n"
" '5' - move stack cards to a parent card on the same stack.\n"
" '6' - move sequences of cards onto free stacks.\n"
" '7' - put freecell cards on empty stacks.\n"
" '8' - move cards to a different parent.\n"
" '9' - empty an entire stack into the freecells.\n"
"\n"
" Atomic Freecell Tests:\n"
"\n"
" 'A' - move a stack card to an empty stack.\n"
" 'B' - move a stack card to a parent on a different stack.\n"
" 'C' - move a stack card to a freecell.\n"
" 'D' - move a freecel card to a parent.\n"
" 'E' - move a freecel card to an empty stack.\n"
"\n"
" Simple Simon Tests:\n"
"\n"
" 'a' - move a full sequence to the foundations.\n"
" 'b' - move a sequence to a true parent of his.\n"
" 'c' - move a whole stack sequence to a false parent (in order to\n"
" clear the stack)\n"
" 'd' - move a sequence to a true parent that has some cards above it.\n"
" 'e' - move a sequence with some cards above it to a true parent.\n"
" 'f' - move a sequence with a junk sequence above it to a true parent\n"
" that has some cards above it.\n"
" 'g' - move a whole stack sequence to a false parent which has some\n"
" cards above it.\n"
" 'h' - move a sequence to a parent on the same stack.\n"
"\n"
" Tests are grouped with parenthesis or square brackets. Each group\n"
" will be randomized as a whole by the random-dfs scan.\n"
"\n"
"\n"
"-me [solving_method] --method [solving_method]\n"
" Specify a solving method. Available methods are:\n"
" \"a-star\" - A*\n"
" \"bfs\" - Breadth-First Search\n"
" \"dfs\" - Depth-First Search (default)\n"
" \"random-dfs\" - A randomized DFS\n"
" \"soft-dfs\" - \"Soft\" DFS\n"
"\n"
"-asw [A* Weights] --a-star-weight [A* Weights]\n"
" Specify weights for the A* scan, assuming it is used. The parameter\n"
" should be a comma-separated list of numbers, each one is proportional\n"
" to the weight of its corresponding test.\n"
"\n"
" The numbers are, in order:\n"
" 1. The number of cards out.\n"
" 2. The maximal sequence move.\n"
" 3. The number of cards under sequences.\n"
" 4. The length of the sequences which are found over renegade cards.\n"
" 5. The depth of the board in the solution.\n"
"\n"
"-seed [seed_number]\n"
" Set the seed for the random number generator used by the\n"
" \"random-dfs\" scan.\n"
"\n"
"-nst --next-soft-thread\n"
" Move to the next Soft-Thread. I.e: input another scan to run in\n"
" parallel.\n"
"-step [step iterations] --soft-thread-step [step iterations]\n"
" Set the number of iterations in the step of the current soft-thread.\n"
"-nht --next-hard-thread\n"
" Move to the next Hard-Thread. This is a new group of scans to run\n"
" in their own system thread (assuming the executable was compiled with\n"
" support for them.)\n"
"--st-name\n"
" Set the name of the soft-thread.\n"
"\n"
"--prelude [prelude_string]\n"
" Set the prelude string of the hard thread. A prelude is a static\n"
" sequence of iterations quotas that are executed at the beginning of\n"
" the search. The format is a list of [Limit]@[Soft-Thread Name]\n"
" delimited by commas.\n"
"\n"
"-ni --next-instance\n"
" Move to the next distinct solver instance. This is a separate scan\n"
" which would run only if the previous ones returned an unsolvable\n"
" verdict.\n"
"\n"
"-opt --optimize-solution\n"
" Try and optimize the solution for a small number of moves.\n"
"-opt-to --optimization-tests-order\n"
" The test order of the optimization scan.\n"
"\n"
"\n"
"--reparent-states\n"
" Reparent states that have a larger depth than that of the state\n"
" from which they were reached a posteriori.\n"
"--calc-real-depth\n"
" If --reparent-states is enabled, then explictly calculate the real\n"
" depth of a state by tracing its path to the initial state\n"
"--scans-synergy {none|dead-end-marks}\n"
" Specifies the cooperation between the scans.\n"
"\n"
"\n"
"--reset\n"
" Reset the program to its initial, unconfigured state.\n"
"--read-from-file [{num_skip},]filename\n"
" Reads configuration parameter with the file while skipping num_skip\n"
" arguments from the beginning.\n"
"-l [configuration] --load-config [configuration]\n"
" Reads the configuration [configruration] and configures the solver\n"
" accordingly.\n"
"\n"
"\n"
"Signals:\n"
"SIGUSR1 - Prints the number of states that were checked so far to stderr.\n"
"SIGUSR2 SIGUSR1 - Turns iteration output on/off.\n"
"SIGUSR2 SIGUSR2 SIGUSR1 - Turns iteration's state output on/off.\n"
"\n"
"\n"
"Freecell Solver was written by Shlomi Fish.\n"
"Homepage: http://vipe.technion.ac.il/~shlomif/freecell-solver/\n"
"Send comments and suggestions to shlomif@vipe.technion.ac.il\n"
},
{
"real-help",
"The environment variable FREECELL_SOLVER_DEFAULT_HELP sets the default help\n"
"screen. The name of the help screen is the same name as its \"--help-\" flag\n"
"but without the preceding \"--help-\". Type:\n"
"\n"
" fc-solve --help-summary\n"
"\n"
"for the available help screens.\n"
"\n"
"Refer to your system's documentation for information on how to set environment\n"
"variables.\n"
},
{
"problems",
"To be discussed.\n"
},
{
"short-sol",
"The following configurations may produce shorter solutions:\n"
"\n"
" fc-solve -opt\n"
" fc-solve --method a-star -opt\n"
" fc-solve --reparent-states -opt\n"
" fc-solve --method a-star --reparent-states -opt\n"
"\n"
"If \"--method a-star\" is specified you can set the weights with\n"
"-asw {comma separated list of 5 numeric weights}, which may improve\n"
"the length of the solution. (refer to the USAGE file for more information)\n"
},
{
"summary",
"fc-solve [flags] [board_file|-]\n"
"\n"
"Reads board from standard input by default or if a \"-\" is specified.\n"
"\n"
"- If it takes too long to finish, type \"fc-solve --help-configs\"\n"
"- If it erroneously reports a board as unsolvable, try adding the\n"
" \"-to 01ABCDE\" flag\n"
"- If the solution is too long type \"fc-solve --help-short-sol\"\n"
"- To present the moves only try adding \"-m\" or \"-m -snx\"\n"
"- For a description of all options type \"fc-solve --help-options\"\n"
"- To deal with other problems type \"fc-solve --help-problems\"\n"
"- To turn --help into something more useful, type\n"
" \"fc-solve --help-real-help\"\n"
"\n"
"Contact Shlomi Fish, shlomif@vipe.technion.ac.il for more information.\n"
},
{
NULL,
NULL
}
}
;
enum MY_FCS_CMD_LINE_RET_VALUES
{
EXIT_AND_RETURN_0 = FCS_CMD_LINE_USER,
};
static void print_help_string(char * key)
{
int i;
for(i=0;help_screens[i].key != NULL ; i++)
{
if (!strcmp(key, help_screens[i].key))
{
printf("%s", help_screens[i].screen);
}
}
}
static int cmd_line_callback(
void * instance,
int argc,
char * argv[],
int arg,
int * num_to_skip,
int * ret,
void * context
)
{
freecell_solver_display_information_context_t * dc;
*num_to_skip = 0;
dc = (freecell_solver_display_information_context_t * )context;
if ((!strcmp(argv[arg], "-h")) || (!strcmp(argv[arg], "--help")))
{
char * help_key;
help_key = getenv("FREECELL_SOLVER_DEFAULT_HELP");
if (help_key == NULL)
{
help_key = "summary";
}
print_help_string(help_key);
*ret = EXIT_AND_RETURN_0;
return FCS_CMD_LINE_STOP;
}
else if (!strncmp(argv[arg], "--help-", 7))
{
print_help_string(argv[arg]+7);
*ret = EXIT_AND_RETURN_0;
return FCS_CMD_LINE_STOP;
}
else if ((!strcmp(argv[arg], "-i")) || (!strcmp(argv[arg], "--iter-output")))
{
#define set_iter_handler() \
freecell_solver_user_set_iter_handler( \
instance, \
my_iter_handler, \
dc \
); \
dc->debug_iter_output_on = 1;
set_iter_handler();
}
else if ((!strcmp(argv[arg], "-s")) || (!strcmp(argv[arg], "--state-output")))
{
set_iter_handler();
dc->debug_iter_state_output = 1;
#undef set_iter_handler
}
else if ((!strcmp(argv[arg], "-p")) || (!strcmp(argv[arg], "--parseable-output")))
{
dc->parseable_output = 1;
}
else if ((!strcmp(argv[arg], "-c")) || (!strcmp(argv[arg], "--canonized-order-output")))
{
dc->canonized_order_output = 1;
}
else if ((!strcmp(argv[arg], "-t")) || (!strcmp(argv[arg], "--display-10-as-t")))
{
dc->display_10_as_t = 1;
}
else if ((!strcmp(argv[arg], "-m")) || (!strcmp(argv[arg], "--display-moves")))
{
dc->display_moves = 1;
dc->display_states = 0;
}
else if ((!strcmp(argv[arg], "-sn")) || (!strcmp(argv[arg], "--standard-notation")))
{
dc->standard_notation = 1;
}
else if ((!strcmp(argv[arg], "-snx")) || (!strcmp(argv[arg], "--standard-notation-extended")))
{
dc->standard_notation = 2;
}
else if ((!strcmp(argv[arg], "-sam")) || (!strcmp(argv[arg], "--display-states-and-moves")))
{
dc->display_moves = 1;
dc->display_states = 1;
}
else if ((!strcmp(argv[arg], "-pi")) || (!strcmp(argv[arg], "--display-parent-iter")))
{
dc->display_parent_iter_num = 1;
}
else if ((!strcmp(argv[arg], "--reset")))
{
init_debug_context(dc);
freecell_solver_user_set_iter_handler(
instance,
NULL,
NULL
);
*num_to_skip = 0;
return FCS_CMD_LINE_OK;
}
else
{
printf("Unimplemented option - \"%s\"!", argv[arg]);
exit(-1);
}
*num_to_skip = 1;
return FCS_CMD_LINE_SKIP;
}
static int command_num = 0;
static int debug_iter_output_on = 0;
static void select_signal_handler(int signal_num)
{
command_num = (command_num+1)%3;
}
static void * current_instance;
static freecell_solver_display_information_context_t * dc;
static void command_signal_handler(int signal_num)
{
if (command_num == 0)
{
fprintf(
stderr,
"The number of iterations is %i\n",
freecell_solver_user_get_num_times(current_instance)
);
}
else if (command_num == 1)
{
if (debug_iter_output_on)
{
freecell_solver_user_set_iter_handler(
current_instance,
NULL,
NULL
);
debug_iter_output_on = 0;
}
else
{
freecell_solver_user_set_iter_handler(
current_instance,
my_iter_handler,
dc
);
debug_iter_output_on = 1;
}
}
else if (command_num == 2)
{
dc->debug_iter_state_output = ! dc->debug_iter_state_output;
}
command_num = 0;
}
static char * known_parameters[] = {
"-h", "--help",
"--help-configs", "--help-options", "--help-problems",
"--help-real-help", "--help-short-sol", "--help-summary",
"-i", "--iter-output",
"-s", "--state-output",
"-p", "--parseable-output",
"-c", "--canonized-order-output",
"-t", "--display-10-as-t",
"-m", "--display-moves",
"-sn", "--standard-notation",
"-snx", "--standard-notation-extended",
"-sam", "--display-states-and-moves",
"-pi", "--display-parent-iter",
"--reset",
NULL
};
#define USER_STATE_SIZE 1024
int main(int argc, char * argv[])
{
int parser_ret;
void * instance;
char * error_string;
int arg;
FILE * file;
char user_state[USER_STATE_SIZE];
int ret;
freecell_solver_display_information_context_t debug_context;
init_debug_context(&debug_context);
dc = &debug_context;
instance = freecell_solver_user_alloc();
current_instance = instance;
parser_ret =
freecell_solver_user_cmd_line_parse_args(
instance,
argc,
argv,
1,
known_parameters,
cmd_line_callback,
&debug_context,
&error_string,
&arg
);
if (parser_ret == EXIT_AND_RETURN_0)
{
freecell_solver_user_free(instance);
return 0;
}
else if (
(parser_ret == FCS_CMD_LINE_PARAM_WITH_NO_ARG)
)
{
fprintf(stderr, "The command line parameter \"%s\" requires an argument"
" and was not supplied with one.\n", argv[arg]);
return (-1);
}
else if (
(parser_ret == FCS_CMD_LINE_ERROR_IN_ARG)
)
{
if (error_string != NULL)
{
fprintf(stderr, "%s", error_string);
free(error_string);
}
freecell_solver_user_free(instance);
return -1;
}
if ((arg == argc) || (!strcmp(argv[arg], "-")))
{
file = stdin;
if (!getenv("FREECELL_SOLVER_TQUIET"))
{
fprintf(stderr, "%s",
"Reading the board from the standard input.\n"
"Type \"fc-solve --help\" for more usage information.\n"
"To cancel this message set the FREECELL_SOLVER_TQUIET environment variable.\n"
);
}
}
else if (argv[arg][0] == '-')
{
fprintf(stderr,
"Unknown option \"%s\". "
"Type \"%s --help\" for usage information.\n",
argv[arg],
argv[0]
);
freecell_solver_user_free(instance);
return -1;
}
else
{
file = fopen(argv[arg], "r");
if (file == NULL)
{
fprintf(stderr,
"Could not open file \"%s\" for input. Exiting.\n",
argv[arg]
);
freecell_solver_user_free(instance);
return -1;
}
}
memset(user_state, '\0', sizeof(user_state));
fread(user_state, sizeof(user_state[0]), USER_STATE_SIZE-1, file);
fclose(file);
/* Win32 Does not have those signals */
#ifndef WIN32
signal(SIGUSR1, command_signal_handler);
signal(SIGUSR2, select_signal_handler);
#endif
#if 0
{
int limit = 500;
freecell_solver_user_limit_iterations(instance, limit);
ret = freecell_solver_user_solve_board(instance, user_state);
while (ret == FCS_STATE_SUSPEND_PROCESS)
{
limit += 500;
freecell_solver_user_limit_iterations(instance, limit);
ret = freecell_solver_user_resume_solution(instance);
}
}
#else
ret = freecell_solver_user_solve_board(instance, user_state);
#endif
if (ret == FCS_STATE_INVALID_STATE)
{
char * error_string;
error_string =
freecell_solver_user_get_invalid_state_error_string(
instance,
debug_context.display_10_as_t
);
printf("%s\n", error_string);
free(error_string);
}
else
{
if (ret == FCS_STATE_WAS_SOLVED)
{
printf("-=-=-=-=-=-=-=-=-=-=-=-\n\n");
{
fcs_move_t move;
FILE * move_dump;
char * as_string;
int move_num = 0;
move_dump = stdout;
if (debug_context.display_states)
{
as_string =
freecell_solver_user_current_state_as_string(
instance,
debug_context.parseable_output,
debug_context.canonized_order_output,
debug_context.display_10_as_t
);
fprintf(move_dump, "%s\n", as_string);
free(as_string);
fprintf(move_dump, "%s", "\n====================\n\n");
}
while (
freecell_solver_user_get_next_move(
instance,
&move
) == 0
)
{
if (debug_context.display_moves)
{
as_string =
freecell_solver_user_move_to_string_w_state(
instance,
move,
debug_context.standard_notation
);
if (debug_context.display_states && debug_context.standard_notation)
{
fprintf(move_dump, "Move: ");
}
fprintf(
move_dump,
(debug_context.standard_notation ?
"%s " :
"%s\n"
),
as_string
);
move_num++;
if (debug_context.standard_notation)
{
if ((move_num % 10 == 0) || debug_context.display_states)
{
fprintf(move_dump, "\n");
}
}
if (debug_context.display_states)
{
fprintf(move_dump, "\n");
}
fflush(move_dump);
free(as_string);
}
if (debug_context.display_states)
{
as_string =
freecell_solver_user_current_state_as_string(
instance,
debug_context.parseable_output,
debug_context.canonized_order_output,
debug_context.display_10_as_t
);
fprintf(move_dump, "%s\n", as_string);
free(as_string);
}
if (debug_context.display_states || (!debug_context.standard_notation))
{
fprintf(move_dump, "%s", "\n====================\n\n");
}
}
if (debug_context.standard_notation && (!debug_context.display_states))
{
fprintf(move_dump, "\n\n");
}
}
printf("This game is solveable.\n");
}
else
{
printf ("I could not solve this game.\n");
}
printf(
"Total number of states checked is %i.\n",
freecell_solver_user_get_num_times(instance)
);
#if 1
printf(
"This scan generated %i states.\n",
freecell_solver_user_get_num_states_in_collection(instance)
);
#endif
}
freecell_solver_user_free(instance);
return 0;
}