valentin/catwalk-cli
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Ajout de commentaires tout au long de interact.c, ainsi que la correction
d'une erreur d'étourderie (à nouveau) qui inversait les abréviations z et d.
This commit is contained in:
Valentin Moguérou 2021-10-28 00:14:00 +02:00
parent cc4f2584ed
commit a357bbd1f8
1 changed files with 118 additions and 22 deletions
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140
src/interact.c
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@ -102,71 +102,128 @@ int read_from_stdin(char *str, int length)
void interact(int width) void interact(int width)
{ {
/* Avant de permettre à l'utilisateur d'intéragir
* avec la grille, encore faut-il la générer ! */
grid *gd = init_grid(width); grid *gd = init_grid(width);
printf("Welcome to Catwalk CLI. Type 'help' or '?' to see all available commands.\n");
char prompt[COMMAND_MAX_SIZE] = "";
char buffer[COMMAND_MAX_SIZE] = "";
refresh_grid(gd); refresh_grid(gd);
init_player_route(gd); init_player_route(gd);
// Afficher un message de bienvenue et d'aide courte
printf("Welcome to Catwalk CLI. Type 'help' or '?' to see all available commands.\n");
/* Création des deux tableaux de caractères contenant les
* entrées de l'utilisateur. Le premier sert à stocker
* directement les entrées de l'utilisateur. Le second est
* utilisé pour permettre la copie et la modification
* du premier. */
char prompt[COMMAND_MAX_SIZE] = "";
char buffer[COMMAND_MAX_SIZE] = "";
// Boucle principale
for(;;) for(;;)
{ {
// vérification de la non-vacuité de prompt
if (is_whitespace(prompt)) if (is_whitespace(prompt))
{ {
printf("catwalk> "); printf("catwalk> "); // affichage
// on met dans "prompt" l'entrée de l'utilisateur
read_from_stdin(prompt, COMMAND_MAX_SIZE); read_from_stdin(prompt, COMMAND_MAX_SIZE);
/* on met une copie de "prompt" dans
* "buffer" sans les espaces */
ltrim(buffer, prompt); ltrim(buffer, prompt);
// on remet tout dans "prompt"
strcpy(prompt, buffer); strcpy(prompt, buffer);
} }
else else
{ {
/* Succession d'expressions conditionnelles.
* Fonctionnement de l'entrée : l'utilisateur
* entre une suite de commandes; elles sont
* éxécutées successivement : par exemple,
* "llurus" est éxécuté comme cela :
* - "l" comme "left" (X2)
* - "u" comme "up"
* - "r" comme "right"
* - "u" comme "up"
* - "s" comme "show"
* Pour éviter les problèmes du type :
* prompt = "undo" : j'éxécute "u" pour "up"
* -> prompt = "ndo": commande inconnue,
* Les commandes en toutes lettres sont testées
* avant les commandes abrégées. */
if STR_STARTS_WITH(prompt, "help") if STR_STARTS_WITH(prompt, "help")
{ {
print_help(); print_help(); // action correspondante
/* on enlève "help" de prompt et décale
* les caractères en conséquence */
strcpy(buffer, prompt+strlen("help")); strcpy(buffer, prompt+strlen("help"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "?") else if STR_STARTS_WITH(prompt, "?")
{ {
print_help(); print_help(); // action correspondante
/* on enlève "?" de prompt et décale
* les caractères en conséquence */
strcpy(buffer, prompt+strlen("?")); strcpy(buffer, prompt+strlen("?"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "show") else if STR_STARTS_WITH(prompt, "show")
{ {
/* on affiche la grille, en précisant qu'elle
* est interactive (afficher le chemin) */
print_interactive_grid(gd); print_interactive_grid(gd);
/* on enlève "show" de prompt et décale
* les caractères en conséquence */
strcpy(buffer, prompt+strlen("show")); strcpy(buffer, prompt+strlen("show"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "reset") else if STR_STARTS_WITH(prompt, "reset")
{ {
// Réinitialisation de la grille
/* si le chemin du joueur ne
* contient qu'un élément */
if (gd->player_route->first->next == NULL) if (gd->player_route->first->next == NULL)
{ {
// demander à jouer d'abord
printf("Play first!\n"); printf("Play first!\n");
} }
else else
{ {
/* supprimer récursivement tous les éléments
* du chemin du joueur, sauf le premier */
delete_element(gd->player_route->first->next); delete_element(gd->player_route->first->next);
gd->player_route->first->next = NULL; gd->player_route->first->next = NULL;
gd->player_route->last = gd->player_route->first; gd->player_route->last = gd->player_route->first;
} }
// supprimer "reset" de prompt
strcpy(buffer, prompt+strlen("reset")); strcpy(buffer, prompt+strlen("reset"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "route") else if STR_STARTS_WITH(prompt, "route")
{ {
// afficher le chemin
print_route(gd->player_route); print_route(gd->player_route);
strcpy(buffer, prompt+strlen("route"));
// supprimer "route" de prompt
strcpy(buffer, prompt+strlen("route"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if (STR_STARTS_WITH(prompt, "exit") || STR_STARTS_WITH(prompt, "quit") || STR_STARTS_WITH(prompt, "q")) else if (STR_STARTS_WITH(prompt, "exit") || STR_STARTS_WITH(prompt, "quit") || STR_STARTS_WITH(prompt, "q"))
{ {
// arrêter l'interaction
break; break;
} }
else if STR_STARTS_WITH(prompt, "undo") else if STR_STARTS_WITH(prompt, "undo")
{ {
// annulation imposible s'il n'y a qu'un unique élément
if (gd->player_route->first->next == NULL) if (gd->player_route->first->next == NULL)
{ {
printf("Can't undo! (single element)\n"); printf("Can't undo! (single element)\n");
@ -175,87 +232,129 @@ void interact(int width)
{ {
pop_back(gd->player_route); pop_back(gd->player_route);
} }
// supprimer "undo" de prompt
strcpy(buffer, prompt+strlen("undo")); strcpy(buffer, prompt+strlen("undo"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "left") else if STR_STARTS_WITH(prompt, "left")
{ {
/* tenter de se déplacer, et si erreur,
* afficher le message correspondant */
switch (move_left(gd->player_route)) switch (move_left(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// supprimer "left" de prompt
strcpy(buffer, prompt+strlen("left")); strcpy(buffer, prompt+strlen("left"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "right") else if STR_STARTS_WITH(prompt, "right")
{ {
/* tenter de se déplacer, et si erreur,
* afficher le message correspondant */
switch (move_right(gd->player_route)) switch (move_right(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// supprimer "right" de prompt
strcpy(buffer, prompt+strlen("right")); strcpy(buffer, prompt+strlen("right"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "up") else if STR_STARTS_WITH(prompt, "up")
{ {
/* tenter de se déplacer, et si erreur,
* afficher le message correspondant */
switch (move_up(gd->player_route)) switch (move_up(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// supprimer "up" de prompt
strcpy(buffer, prompt+strlen("up")); strcpy(buffer, prompt+strlen("up"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "down") else if STR_STARTS_WITH(prompt, "down")
{ {
/* tenter de se déplacer, et si erreur,
* afficher le message correspondant */
switch (move_down(gd->player_route)) switch (move_down(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// supprimer "down" de prompt
strcpy(buffer, prompt+strlen("down")); strcpy(buffer, prompt+strlen("down"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "s") else if STR_STARTS_WITH(prompt, "s")
{ {
// afficher la grille
print_interactive_grid(gd); print_interactive_grid(gd);
// supprimer "s" de prompt
strcpy(buffer, prompt+strlen("s")); strcpy(buffer, prompt+strlen("s"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "l") else if STR_STARTS_WITH(prompt, "l")
{ {
// se déplacer
switch (move_left(gd->player_route)) switch (move_left(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// MàJ de prompt
strcpy(buffer, prompt+strlen("l")); strcpy(buffer, prompt+strlen("l"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "r") else if STR_STARTS_WITH(prompt, "r")
{ {
// se déplacer
switch (move_right(gd->player_route)) switch (move_right(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// MàJ de prompt
strcpy(buffer, prompt+strlen("r")); strcpy(buffer, prompt+strlen("r"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "u") else if STR_STARTS_WITH(prompt, "u")
{ {
// se déplacer
switch (move_up(gd->player_route)) switch (move_up(gd->player_route))
{ {
case 1: puts("Cannot move: border of the grid"); break; case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break; case 2: puts("Cannot move: already went there"); break;
} }
// MàJ de prompt
strcpy(buffer, prompt+strlen("u")); strcpy(buffer, prompt+strlen("u"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else if STR_STARTS_WITH(prompt, "d") else if STR_STARTS_WITH(prompt, "d")
{
switch (move_down(gd->player_route))
{
case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break;
}
strcpy(buffer, prompt+strlen("d"));
}
else if STR_STARTS_WITH(prompt, "z")
{ {
// annuler, mais seulement si possible
if (gd->player_route->first->next == NULL) if (gd->player_route->first->next == NULL)
{ {
printf("Can't undo! (single element)\n"); printf("Can't undo! (single element)\n");
@ -264,30 +363,25 @@ void interact(int width)
{ {
pop_back(gd->player_route); pop_back(gd->player_route);
} }
strcpy(buffer, prompt+strlen("d"));
ltrim(prompt, buffer); // MàJ de prompt
}
else if STR_STARTS_WITH(prompt, "z")
{
switch (move_down(gd->player_route))
{
case 1: puts("Cannot move: border of the grid"); break;
case 2: puts("Cannot move: already went there"); break;
}
strcpy(buffer, prompt+strlen("z")); strcpy(buffer, prompt+strlen("z"));
ltrim(prompt, buffer); ltrim(prompt, buffer);
} }
else else
{ {
// afficher un message d'erreur
printf("Unrecognized command : '%s'!\n", prompt); printf("Unrecognized command : '%s'!\n", prompt);
prompt[0] = '\0'; prompt[0] = '\0'; // effacer prompt
} }
} }
if (gd->player_route->last->x == gd->end[0] && gd->player_route->last->y == gd->end[1]) if (gd->player_route->last->x == gd->end[0] && gd->player_route->last->y == gd->end[1])
{ {
print_interactive_grid(gd); print_interactive_grid(gd); // afficher à nouveau la grille
// afficher un message de fin
if (verify(gd)) if (verify(gd))
{ {
printf("You won!\n"); printf("You won!\n");
@ -297,11 +391,13 @@ void interact(int width)
printf("You lost!\n"); printf("You lost!\n");
} }
// régénérer la grille
random_start(gd); random_start(gd);
refresh_grid(gd); refresh_grid(gd);
reset_player_route(gd); reset_player_route(gd);
} }
} }
// Pour finir, détruire la grille
delete_grid(gd); delete_grid(gd);
} }