1 files changed, 71 insertions, 0 deletions
diff --git a/src/menu.c b/src/menu.c
new file mode 100644
index 0000000..cf9226d
--- /dev/null
+++ b/src/menu.c
@@ -0,0 +1,71 @@
+#include "globals.h"
+
+void do_menu(struct player_t *player, const struct command_t *commands, uint len, const char *prompt)
+{
+    for(uint i = 0; i < len; ++i)
+    {
+        printf("%d. %s\n", i + 1, commands[i].name);
+    }
+
+    printf("%s", prompt);
+    char *cmdbuf = read_string();
+
+    all_lower(cmdbuf);
+
+    /* find the best command */
+
+    int best_command = -1;
+
+    /* first, search for an exact match */
+    for(uint i = 0; i < len; ++i)
+    {
+        if(strcmp(cmdbuf, commands[i].command) == 0)
+        {
+            best_command = i;
+            goto exec_cmd;
+        }
+    }
+
+    /* now look for a partial match */
+    for(uint i = 0; i < len; ++i)
+    {
+        uint len = strlen(cmdbuf);
+        if(len > strlen(commands[i].command))
+            continue;
+        for(uint j = 1; j <= len; ++j)
+        {
+            char *buf1 = malloc(j + 1);
+            memset(buf1, 0, j + 1);
+            memcpy(buf1, cmdbuf, j);
+            buf1[j] = '\0';
+
+            char *buf2 = malloc(j + 1);
+            memset(buf2, 0, j + 1);
+            memcpy(buf2, commands[i].command, j);
+            buf2[j] = '\0';
+
+            if(strcmp(buf1, buf2) == 0)
+            {
+                best_command = i;
+                free(buf1);
+                free(buf2);
+                goto exec_cmd;
+            }
+            else
+            {
+                free(buf1);
+                free(buf2);
+            }
+        }
+    }
+
+exec_cmd:
+
+    if(best_command >= 0)
+    {
+        commands[best_command].handler(player);
+        printf("\n");
+    }
+
+    free(cmdbuf);
+}