Update mkobj.c

src/NetHack_3.7/src/decl.c

@@ -17,7 +17,7 @@ NEARDATA const struct c_color_names c_color_names = {
     "black",  "amber", "golden", "light blue", "red",   "green",
     "silver", "blue",  "purple", "white",      "orange"
 };
-const char *c_obj_colors[] = {
+const char *c_obj_colors[] = {   //这里定义了一些物品的颜色
     "black",          /* CLR_BLACK */
     "red",            /* CLR_RED */
     "green",          /* CLR_GREEN */
@@ -36,8 +36,8 @@ const char *c_obj_colors[] = {
     "white",          /* CLR_WHITE */
 };
 
-const struct c_common_strings c_common_strings =
-    { "Nothing happens.",
+const struct c_common_strings c_common_strings =  //结构体变量中包含了一些常见的字符串，用于文本输出
+    { "Nothing happens.",      //在游戏中提供反馈、描述情况，进行交互
       "That's enough tries!",
       "That is a silly thing to %s.",
       "shudder for a moment.",
@@ -50,33 +50,34 @@ const struct c_common_strings c_common_strings =
       { "mon", "you" }
 };
 
-const struct savefile_info default_sfinfo = {
-#ifdef NHSTDC
+const struct savefile_info default_sfinfo = {  //定义了保存文件的默认信息
+#ifdef NHSTDC    //用于保存文件格式的标志位
     0x00000000UL
 #else
     0x00000000L
 #endif
-#if defined(COMPRESS) || defined(ZLIB_COMP)
+#if defined(COMPRESS) || defined(ZLIB_COMP)   //用于外部压缩标志位
         | SFI1_EXTERNALCOMP
 #endif
 #if defined(ZEROCOMP)
-        | SFI1_ZEROCOMP
+        | SFI1_ZEROCOMP   //零压缩标志位
 #endif
 #if defined(RLECOMP)
-        | SFI1_RLECOMP
+        | SFI1_RLECOMP    //RLE压缩标志
 #endif
     ,
 #ifdef NHSTDC
-    0x00000000UL, 0x00000000UL
+    0x00000000UL, 0x00000000UL   //保留字段
 #else
     0x00000000L, 0x00000000L
 #endif
 };
 
-const char disclosure_options[] = "iavgco";
-char emptystr[] = {0};       /* non-const */
+const char disclosure_options[] = "iavgco";  //是一个字符数组，包含了几个选项。这些选项用于控制信息的披露程度。
+char emptystr[] = {0};       /* non-const */  //是一个字符数组，用于表示空字符串。它是非常量数组，可以被修改。
 
 NEARDATA struct flag flags;  /* extern declaration is in flag.h, not decl.h */
+//是一个结构体变量，用于存储游戏中的标志位。该变量在flag.h中有外部声明。
 
 /* Global windowing data, defined here for multi-window-system support */
 #ifdef WIN32
@@ -84,25 +85,28 @@ boolean fqn_prefix_locked[PREFIX_COUNT] = { FALSE, FALSE, FALSE,
                                             FALSE, FALSE, FALSE,
                                             FALSE, FALSE, FALSE,
                                             FALSE };
+                                            //是一个布尔数组，用于表示文件名前缀是否被锁定。在这段代码中，它被初始化为全为FALSE。
 #endif
 #ifdef PREFIXES_IN_USE
 const char *fqn_prefix_names[PREFIX_COUNT] = {
     "hackdir",  "leveldir", "savedir",    "bonesdir",  "datadir",
     "scoredir", "lockdir",  "sysconfdir", "configdir", "troubledir"
-};
+};//是一个字符串指针数组，包含了一些文件名前缀的名称。这些名称用于指定不同类型文件的存储路径。
 #endif
 
 /* x/y/z deltas for the 10 movement directions (8 compass pts, 2 down/up) */
 const schar xdir[N_DIRS_Z] = { -1, -1,  0,  1,  1,  1,  0, -1, 0,  0 };
 const schar ydir[N_DIRS_Z] = {  0, -1, -1, -1,  0,  1,  1,  1, 0,  0 };
 const schar zdir[N_DIRS_Z] = {  0,  0,  0,  0,  0,  0,  0,  0, 1, -1 };
+//是三个有符号字符数组，分别表示十个移动方向（包括八个主要方向和上下方向）的x、y和z轴的增量。
 /* redordered directions, cardinals first */
 const schar dirs_ord[N_DIRS] =
     { DIR_W, DIR_N, DIR_E, DIR_S, DIR_NW, DIR_NE, DIR_SE, DIR_SW };
+//是一个有符号字符数组，表示经过重新排序的移动方向。首先是四个基本方向，然后是四个对角线方向。
 
-NEARDATA boolean has_strong_rngseed = FALSE;
+NEARDATA boolean has_strong_rngseed = FALSE;  //是一个布尔变量，用于表示是否具有强随机种子。
 struct engr *head_engr;
-NEARDATA struct instance_flags iflags;
+NEARDATA struct instance_flags iflags;  //是一个结构体变量，用于存储游戏实例的标志位。
 /* NOTE: the order of these words exactly corresponds to the
    order of oc_material values #define'd in objclass.h. */
 const char *materialnm[] = { "mysterious", "liquid",  "wax",        "organic",
@@ -111,29 +115,35 @@ const char *materialnm[] = { "mysterious", "liquid",  "wax",        "organic",
                              "metal",      "copper",  "silver",     "gold",
                              "platinum",   "mithril", "plastic",    "glass",
                              "gemstone",   "stone" };
-const char quitchars[] = " \r\n\033";
-NEARDATA struct savefile_info sfcap, sfrestinfo, sfsaveinfo;
-const int shield_static[SHIELD_COUNT] = {
+                             //是一个字符串指针数组，包含了一些物品材质的名称。这些名称与objclass.h中定义的oc_material值的顺序完全对应。
+
+const char quitchars[] = " \r\n\033";//是一个包含一些表示退出字符的字符串，包括空格、回车、换行和转义字符。
+
+NEARDATA struct savefile_info sfcap, sfrestinfo, sfsaveinfo;  //结构体变量，用于保存文件的信息。
+
+const int shield_static[SHIELD_COUNT] = {//是一个整型数组，包含了一些盾牌的静态符号。
     S_ss1, S_ss2, S_ss3, S_ss2, S_ss1, S_ss2, S_ss4, /* 7 per row */
     S_ss1, S_ss2, S_ss3, S_ss2, S_ss1, S_ss2, S_ss4,
     S_ss1, S_ss2, S_ss3, S_ss2, S_ss1, S_ss2, S_ss4,
 };
-NEARDATA struct you u;
-NEARDATA time_t ubirthday;
-NEARDATA struct u_realtime urealtime;
-NEARDATA struct obj *uwep, *uarm, *uswapwep,
+NEARDATA struct you u;//结构体变量，用于表示玩家角色的状态和属性。
+NEARDATA time_t ubirthday;  //是一个time_t类型的变量，表示玩家角色的出生时间。
+NEARDATA struct u_realtime urealtime;  //用于表示游戏时间的实时信息。
+NEARDATA struct obj *uwep, *uarm, *uswapwep,  //结构体的指针变量，用于表示玩家角色的装备和物品。
     *uquiver, /* quiver */
     *uarmu, /* under-wear, so to speak */
     *uskin, /* dragon armor, if a dragon */
     *uarmc, *uarmh, *uarms, *uarmg,*uarmf, *uamul,
     *uright, *uleft, *ublindf, *uchain, *uball;
-const char vowels[] = "aeiouAEIOU";
-NEARDATA winid WIN_MESSAGE, WIN_STATUS, WIN_MAP, WIN_INVEN;
-const char ynchars[] = "yn";
+const char vowels[] = "aeiouAEIOU"; //是一个包含元音字母的字符串，包括小写和大写的元音字母。
+NEARDATA winid WIN_MESSAGE, WIN_STATUS, WIN_MAP, WIN_INVEN;//是窗口标识符（winid类型）变量，用于表示游戏中的不同窗口。
+const char ynchars[] = "yn"; //是包含一些表示"yes"和"no"的字符的字符串。
 const char ynqchars[] = "ynq";
 const char ynaqchars[] = "ynaq";
 const char ynNaqchars[] = "yn#aq";
 NEARDATA long yn_number = 0L;
+//这些变量的定义用于实现游戏的逻辑和界面显示等功能。
+//其中包括随机数种子、文本输出、文件操作、游戏状态、时间管理、玩家角色属性、装备和物品等。
 
 #ifdef PANICTRACE
 const char *ARGV0;

src/NetHack_3.7/src/makemon.c

@@ -30,18 +30,19 @@ static boolean makemon_rnd_goodpos(struct monst *, mmflags_nht, coord *);
 boolean
 is_home_elemental(struct permonst *ptr)
 {
-    if (ptr->mlet == S_ELEMENTAL)
-        switch (monsndx(ptr)) {
+    if (ptr->mlet == S_ELEMENTAL)// Check if the monster is an elemental creature
+        switch (monsndx(ptr)) {// Determine the specific type of the elemental creature
+            case PM_AIR_ELEMENTAL:
         case PM_AIR_ELEMENTAL:
-            return Is_airlevel(&u.uz);
+            return Is_airlevel(&u.uz);// Check if the player is on an air elemental level
         case PM_FIRE_ELEMENTAL:
-            return Is_firelevel(&u.uz);
+            return Is_firelevel(&u.uz);// Check if the player is on a fire elemental level
         case PM_EARTH_ELEMENTAL:
-            return Is_earthlevel(&u.uz);
+            return Is_earthlevel(&u.uz);// Check if the player is on an earth elemental level
         case PM_WATER_ELEMENTAL:
-            return Is_waterlevel(&u.uz);
+            return Is_waterlevel(&u.uz);// Check if the player is on a water elemental level
         }
-    return FALSE;
+    return FALSE;// The monster is not an elemental or the player is not on a matching elemental level
 }
 
 /*
@@ -50,23 +51,24 @@ is_home_elemental(struct permonst *ptr)
 static boolean
 wrong_elem_type(struct permonst *ptr)
 {
-    if (ptr->mlet == S_ELEMENTAL) {
-        return (boolean) !is_home_elemental(ptr);
+    if (ptr->mlet == S_ELEMENTAL) { // Check if the monster is an elemental creature
+        return (boolean) !is_home_elemental(ptr);// Return the opposite of is_home_elemental
     } else if (Is_earthlevel(&u.uz)) {
         /* no restrictions? */
     } else if (Is_waterlevel(&u.uz)) {
         /* just monsters that can swim */
         if (!is_swimmer(ptr))
-            return TRUE;
+            return TRUE; // Return true if the monster cannot swim
     } else if (Is_firelevel(&u.uz)) {
         if (!pm_resistance(ptr, MR_FIRE))
-            return TRUE;
+            return TRUE; // Return true if the monster is not resistant to fire
     } else if (Is_airlevel(&u.uz)) {
         if (!(is_flyer(ptr) && ptr->mlet != S_TRAPPER) && !is_floater(ptr)
             && !amorphous(ptr) && !noncorporeal(ptr) && !is_whirly(ptr))
-            return TRUE;
+            return TRUE; // Return true if the monster is not suited for an air level
     }
-    return FALSE;
+    return FALSE; // The monster is suitable for the current level or is not an elemental
+    
 }
 
 /* make a group just like mtmp */
@@ -142,12 +144,12 @@ m_initthrow(struct monst *mtmp, int otyp, int oquan)
 {
     register struct obj *otmp;
 
-    otmp = mksobj(otyp, TRUE, FALSE);
-    otmp->quan = (long) rn1(oquan, 3);
-    otmp->owt = weight(otmp);
+    otmp = mksobj(otyp, TRUE, FALSE); // Create a new object of the given type
+    otmp->quan = (long) rn1(oquan, 3); // Set the quantity of the object
+    otmp->owt = weight(otmp); // Set the weight of the object
     if (otyp == ORCISH_ARROW)
-        otmp->opoisoned = TRUE;
-    (void) mpickobj(mtmp, otmp);
+        otmp->opoisoned = TRUE;// Set the poisoned flag if the object type is ORCISH_ARROW
+    (void) mpickobj(mtmp, otmp);// Add the object to the monster's inventory
 }
 
 static void

src/NetHack_3.7/src/mcastu.c

@@ -242,7 +242,7 @@ castmu(
               canseemon(mtmp) ? Monnam(mtmp) : "Something",
               is_waterwall(mtmp->mux,mtmp->muy) ? "empty water"
                                                 : "thin air");
-        return M_ATTK_MISS;
+        return M_ATTK_MISS;// Return a miss attack if the monster hasn't found you but thinks it has and casts a directed spell
     }
 
     nomul(0);
@@ -300,14 +300,14 @@ castmu(
         burn_away_slime();
         break;
     case AD_COLD:
-        pline("You're covered in frost.");
-        if (Cold_resistance) {
-            shieldeff(u.ux, u.uy);
-            pline("But you resist the effects.");
-            monstseesu(M_SEEN_COLD);
-            dmg = 0;
+        pline("You're covered in frost."); // Display a message indicating that the player is covered in frost
+    	  if (Cold_resistance) { // Check if the player has cold resistance
+            shieldeff(u.ux, u.uy); // Shield the player with an icy shield animation
+            pline("But you resist the effects."); // Display a message indicating that the player resists the effects
+            monstseesu(M_SEEN_COLD); // Indicate that the monster saw the player being hit with a cold attack
+            dmg = 0; // Set the damage amount to 0 since the player resisted the attack
         } else {
-            monstunseesu(M_SEEN_COLD);
+            monstunseesu(M_SEEN_COLD);// Indicate that the monster saw the player being hit with a cold attack
         }
         break;
     case AD_MAGM:
@@ -341,15 +341,15 @@ castmu(
 static int
 m_cure_self(struct monst *mtmp, int dmg)
 {
-    if (mtmp->mhp < mtmp->mhpmax) {
-        if (canseemon(mtmp))
-            pline("%s looks better.", Monnam(mtmp));
+    if (mtmp->mhp < mtmp->mhpmax) { // Check if the monster's current hit points are less than its maximum hit points
+        if (canseemon(mtmp)) // Check if the player can see the monster
+            pline("%s looks better.", Monnam(mtmp)); // Display a message indicating that the monster looks better
         /* note: player healing does 6d4; this used to do 1d8 */
-        if ((mtmp->mhp += d(3, 6)) > mtmp->mhpmax)
-            mtmp->mhp = mtmp->mhpmax;
-        dmg = 0;
+        if ((mtmp->mhp += d(3, 6)) > mtmp->mhpmax) // Restore some of the monster's health
+            mtmp->mhp = mtmp->mhpmax; // Cap the monster's hit points to its maximum hit points
+        dmg = 0; // Set the damage amount to 0 since the monster is healing itself
     }
-    return dmg;
+    return dmg; // Return the updated damage amount
 }
 
 /* unlike the finger of death spell which behaves like a wand of death,

src/NetHack_3.7/src/mdlib.c

@@ -163,10 +163,10 @@ static struct win_information window_opts[] = {
 static int count_and_validate_soundlibopts(void);
 
 struct soundlib_information {
-    enum soundlib_ids id;
-    const char *const text_id;
-    const char *const Url;
-    boolean valid;
+    enum soundlib_ids id; // The ID of the sound library
+    const char *const text_id; // The ID of the text associated with the sound library
+    const char *const Url; // A URL to the sound library's homepage or download link
+    boolean valid; // Whether or not the sound library is valid (i.e., exists and is properly configured)
 };
 
 /*
@@ -959,14 +959,14 @@ case_insensitive_comp(const char *s1, const char *s2)
 void
 runtime_info_init(void)
 {
-    if (!done_runtime_opt_init_once) {
-        done_runtime_opt_init_once = 1;
-        build_savebones_compat_string();
+    if (!done_runtime_opt_init_once) { // Check if runtime info has already been initialized
+        done_runtime_opt_init_once = 1; // Mark that runtime info has been initialized
+        build_savebones_compat_string(); // Build a string for save file compatibility
         /* construct the current version number */
-        make_version();
+        make_version();// Constructs the version number of the game
         populate_nomakedefs(&version);          /* date.c */
-        idxopttext = 0;
-        build_options();
+        idxopttext = 0;// Set the index of option text to 0
+        build_options(); // Construct the game options
     }
 }
 

src/NetHack_3.7/src/mhitm.c

@@ -479,8 +479,8 @@ mattackm(
             break;
 
         case AT_GAZE:
-            strike = 0;
-            res[i] = gazemm(magr, mdef, mattk);
+            strike = 0; // Set the strike value to 0, indicating that a physical attack does not occur
+            res[i] = gazemm(magr, mdef, mattk); // Perform a gaze attack and store the result in the corresponding position of the res array
             break;
 
         case AT_EXPL:
@@ -1437,9 +1437,9 @@ xdrainenergym(struct monst *mon, boolean givemsg)
     if (mon->mspec_used < 20 /* limit draining */
         && (attacktype(mon->data, AT_MAGC)
             || attacktype(mon->data, AT_BREA))) {
-        mon->mspec_used += d(2, 2);
+        mon->mspec_used += d(2, 2);// Increase the monster's special ability used count by rolling 2d2
         if (givemsg)
-            pline("%s seems lethargic.", Monnam(mon));
+            pline("%s seems lethargic.", Monnam(mon));// Display a message indicating the monster seems lethargic
     }
 }
 

src/NetHack_3.7/src/mhitu.c

@@ -157,14 +157,15 @@ mpoisons_subj(struct monst *mtmp, struct attack *mattk)
 void
 u_slow_down(void)
 {
-    HFast = 0L;
+    HFast = 0L; // Clear the duration of the fast status
     if (!Fast)
-        You("slow down.");
+        You("slow down."); // Displays a message to indicate that the player is slowing down
     else /* speed boots */
-        Your("quickness feels less natural.");
-    exercise(A_DEX, FALSE);
+        Your("quickness feels less natural.");// Displays a message indicating that the player's quickness feels less natural, likely due to the effect of having worn magical speed boots
+    exercise(A_DEX, FALSE); // Increase the player's dexterity by exercising it
 }
 
+
 /* monster attacked wrong location due to monster blindness, hero
    invisibility, hero displacement, or hero being underwater */
 static void
@@ -1194,14 +1195,14 @@ gulp_blnd_check(void)
 {
     struct attack *mattk;
 
-    if (!Blinded && u.uswallow
-        && (mattk = attacktype_fordmg(u.ustuck->data, AT_ENGL, AD_BLND))
-        && can_blnd(u.ustuck, &gy.youmonst, mattk->aatyp, (struct obj *) 0)) {
-        ++u.uswldtim; /* compensate for gulpmu change */
-        (void) gulpmu(u.ustuck, mattk);
-        return TRUE;
+    if (!Blinded && u.uswallow// Check if the player is not already blinded and is currently swallowed by another creature
+        && (mattk = attacktype_fordmg(u.ustuck->data, AT_ENGL, AD_BLND)) // Get the type of attack used by the creature to blind its prey
+        && can_blnd(u.ustuck, &gy.youmonst, mattk->aatyp, (struct obj *) 0)) { // Check if this kind of attack can blind the player
+        ++u.uswldtim; /* compensate for gulpmu change */ // Increase the swallow delay timer to compensate for any changes caused by swallowing the player
+        (void) gulpmu(u.ustuck, mattk); // Perform the swallow attack
+        return TRUE; // Return that the player should be blinded
     }
-    return FALSE;
+    return FALSE;// Return that the player should not be blinded
 }
 
 /* monster swallows you, or damage if u.uswallow */
@@ -1810,16 +1811,17 @@ gazemu(struct monst *mtmp, struct attack *mattk)
 void
 mdamageu(struct monst *mtmp, int n)
 {
-    gc.context.botl = 1;
-    if (Upolyd) {
-        u.mh -= n;
-        if (u.mh < 1)
-            rehumanize();
-    } else {
-        n = saving_grace(n);
-        u.uhp -= n;
-        if (u.uhp < 1)
-            done_in_by(mtmp, DIED);
+    gc.context.botl = 1; // Set the botl (bottom line) flag to indicate that the status line needs to be updated
+
+    if (Upolyd) { // If the player is currently in a polymorphed form
+        u.mh -= n; // Reduce the player's monster hit points by the specified amount of damage
+        if (u.mh < 1) // If the player's monster hit points drop below 1
+            rehumanize(); // Change the player back to human form
+    } else { // If the player is in human form
+        n = saving_grace(n); // Apply any necessary reductions to the damage based on the player's abilities
+        u.uhp -= n; // Reduce the player's hit points by the modified amount of damage
+        if (u.uhp < 1) // If the player's hit points drop below 1
+            done_in_by(mtmp, DIED); // Handle the player's death caused by the monster
     }
 }
 

src/NetHack_3.7/src/minion.c

@@ -16,22 +16,22 @@ static const int elementals[4] = {
 void
 newemin(struct monst *mtmp)
 {
-    if (!mtmp->mextra)
-        mtmp->mextra = newmextra();
-    if (!EMIN(mtmp)) {
-        EMIN(mtmp) = (struct emin *) alloc(sizeof(struct emin));
-        (void) memset((genericptr_t) EMIN(mtmp), 0, sizeof(struct emin));
+    if (!mtmp->mextra) // If the monster does not have an mextra structure
+        mtmp->mextra = newmextra(); // Create a new mextra structure for the monster
+    if (!EMIN(mtmp)) { // If the monster does not have an emin structure
+        EMIN(mtmp) = (struct emin *) alloc(sizeof(struct emin)); // Allocate memory for the emin structure
+        (void) memset((genericptr_t) EMIN(mtmp), 0, sizeof(struct emin)); // Initialize the emin structure with zeros
     }
 }
 
 void
 free_emin(struct monst *mtmp)
 {
-    if (mtmp->mextra && EMIN(mtmp)) {
-        free((genericptr_t) EMIN(mtmp));
-        EMIN(mtmp) = (struct emin *) 0;
+    if (mtmp->mextra && EMIN(mtmp)) { // If the monster has an mextra structure and an emin structure
+        free((genericptr_t) EMIN(mtmp)); // Free the memory allocated for the emin structure
+        EMIN(mtmp) = (struct emin *) 0; // Set the emin pointer to null
     }
-    mtmp->isminion = 0;
+    mtmp->isminion = 0; // Set the isminion flag to 0 to indicate that the monster is not a minion
 }
 
 /* count the number of monsters on the level */
@@ -42,15 +42,15 @@ monster_census(boolean spotted) /* seen|sensed vs all */
     int count = 0;
 
     for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
-        if (DEADMONSTER(mtmp))
+        if (DEADMONSTER(mtmp)) // If the monster is dead, skip to the next monster
             continue;
-        if (mtmp->isgd && mtmp->mx == 0)
+        if (mtmp->isgd && mtmp->mx == 0) // If the monster is a guardian and is not on the map, skip to the next monster
             continue;
-        if (spotted && !canspotmon(mtmp))
+        if (spotted && !canspotmon(mtmp)) // If spotted flag is true and the monster is not visible, skip to the next monster
             continue;
-        ++count;
+        ++count; // Increment the count
     }
-    return count;
+    return count; // Return the final count
 }
 
 /* mon summons a monster */
@@ -133,11 +133,11 @@ msummon(struct monst *mon)
      * If this daemon is unique and being re-summoned (the only way we
      * could get this far with an extinct dtype), try another.
      */
-    if ((gm.mvitals[dtype].mvflags & G_GONE) != 0) {
-        dtype = ndemon(atyp);
-        if (dtype == NON_PM)
-            return 0;
-    }
+    if ((gm.mvitals[dtype].mvflags & G_GONE) != 0) { // Check if the monster type is flagged as gone
+        dtype = ndemon(atyp); // Generate a new demon monster type
+        if (dtype == NON_PM) // If the generated type is not a valid monster type
+            return 0; // Return 0 to indicate failure
+}
 
     /* some candidates can generate a group of monsters, so simple
        count of non-null makemon() result is not sufficient */
@@ -426,12 +426,12 @@ lminion(void)
     struct permonst *ptr;
 
     for (tryct = 0; tryct < 20; tryct++) {
-        ptr = mkclass(S_ANGEL, 0);
-        if (ptr && !is_lord(ptr))
-            return monsndx(ptr);
+        ptr = mkclass(S_ANGEL, 0); // Generate a random monster class of angels
+        if (ptr && !is_lord(ptr)) // If a valid non-lord monster is generated
+            return monsndx(ptr); // Return the monster number
     }
 
-    return NON_PM;
+    return NON_PM; // Return NON_PM if no valid non-lord monster can be generated after 20 tries
 }
 
 int

src/NetHack_3.7/src/mklev.c

@@ -56,8 +56,8 @@ mkroom_cmp(const genericptr vx, const genericptr vy)
     x = (const struct mkroom *) vx;
     y = (const struct mkroom *) vy;
     if (x->lx < y->lx)
-        return -1;
-    return (x->lx > y->lx);
+        return -1; // x's lx is less than y's lx
+    return (x->lx > y->lx); // x's lx is greater than y's lx
 }
 
 /* Return TRUE if a door placed at (x, y) which otherwise passes okdoor()
@@ -1896,13 +1896,13 @@ static void
 mksink(struct mkroom *croom)
 {
     coord m;
-
+    // Find a valid position for the sink within the room
     if (!find_okay_roompos(croom, &m))
-        return;
+        return;// No valid position found, return
 
     /* Put a sink at m.x, m.y */
     if (!set_levltyp(m.x, m.y, SINK))
-        return;
+        return;// Failed to set the level type to SINK, return
 
     gl.level.flags.nsinks++;
 }

src/NetHack_3.7/src/mkmap.c

@@ -27,9 +27,9 @@ init_map(schar bg_typ)
 
     for (i = 1; i < COLNO; i++)
         for (j = 0; j < ROWNO; j++) {
-            levl[i][j].roomno = NO_ROOM;
-            levl[i][j].typ = bg_typ;
-            levl[i][j].lit = FALSE;
+            levl[i][j].roomno = NO_ROOM; // Set room number to NO_ROOM
+            levl[i][j].typ = bg_typ; // Set cell type to the specified background type
+            levl[i][j].lit = FALSE; // Set the cell as not lit
         }
 }
 
@@ -250,9 +250,9 @@ join_map_cleanup(void)
 
     for (x = 1; x < COLNO; x++)
         for (y = 0; y < ROWNO; y++)
-            levl[x][y].roomno = NO_ROOM;
-    gn.nroom = gn.nsubroom = 0;
-    gr.rooms[gn.nroom].hx = gs.subrooms[gn.nsubroom].hx = -1;
+            levl[x][y].roomno = NO_ROOM; // Set room number to NO_ROOM
+    gn.nroom = gn.nsubroom = 0; // Reset the number of rooms and subrooms
+    gr.rooms[gn.nroom].hx = gs.subrooms[gn.nsubroom].hx = -1; // Reset room boundaries
 }
 
 static void

src/NetHack_3.7/src/mkmaze.c

@@ -43,9 +43,9 @@ iswall(coordxy x, coordxy y)
 {
     int type;
 
-    if (!isok(x, y))
-        return 0;
-    type = levl[x][y].typ;
+    if (!isok(x, y)) // Check if the specified coordinates are valid
+        return 0; // Return false if not 
+    type = levl[x][y].typ;// Get the type of the cell at the specified coordinates
     return (IS_WALL(type) || IS_DOOR(type)
             || type == SDOOR || type == IRONBARS);
 }
@@ -280,12 +280,12 @@ wallification(coordxy x1, coordxy y1, coordxy x2, coordxy y2)
 static boolean
 okay(coordxy x, coordxy y, coordxy dir)
 {
-    mz_move(x, y, dir);
-    mz_move(x, y, dir);
+    mz_move(x, y, dir); // Move the player one space in the given direction
+    mz_move(x, y, dir); // Move the player another space in the same direction
     if (x < 3 || y < 3 || x > gx.x_maze_max || y > gy.y_maze_max
         || levl[x][y].typ != STONE)
-        return FALSE;
-    return TRUE;
+        return FALSE;// Return false if the player is not on a valid location
+    return TRUE;// Return true if the player is on a valid location
 }
 
 /* find random starting point for maze generation */
@@ -294,7 +294,7 @@ maze0xy(coord *cc)
 {
     cc->x = 3 + 2 * rn2((gx.x_maze_max >> 1) - 1);
     cc->y = 3 + 2 * rn2((gy.y_maze_max >> 1) - 1);
-    return;
+    return;// Return after storing the generated coordinates
 }
 
 static boolean

src/NetHack_3.7/src/mkobj.c

@@ -85,10 +85,10 @@ struct oextra *
 newoextra(void)
 {
     struct oextra *oextra;
-
+    // Allocate memory for oextra structure
     oextra = (struct oextra *) alloc(sizeof (struct oextra));
     init_oextra(oextra);
-    return oextra;
+    return oextra;// Return the pointer to the newly allocated oextra structure
 }
 
 void
@@ -113,13 +113,13 @@ void
 newomonst(struct obj *otmp)
 {
     if (!otmp->oextra)
-        otmp->oextra = newoextra();
+        otmp->oextra = newoextra(); // Allocate and initialize a new oextra structure
 
     if (!OMONST(otmp)) {
-        struct monst *m = newmonst();
+        struct monst *m = newmonst(); // Allocate memory for a new monster
 
-        *m = cg.zeromonst;
-        OMONST(otmp) = m;
+        *m = cg.zeromonst; // Initialize the monster with cg.zeromonst
+        OMONST(otmp) = m; // Assign the new monster to the object
     }
 }
 
@@ -127,13 +127,13 @@ void
 free_omonst(struct obj *otmp)
 {
     if (otmp->oextra) {
-        struct monst *m = OMONST(otmp);
+        struct monst *m = OMONST(otmp);// Get the monster associated with the object
 
         if (m) {
             if (m->mextra)
-                dealloc_mextra(m);
-            free((genericptr_t) m);
-            OMONST(otmp) = (struct monst *) 0;
+                dealloc_mextra(m); // Deallocate any extra memory associated with the monster
+            free((genericptr_t)m); // Deallocate the memory for the monster
+            OMONST(otmp) = (struct monst *)0; // Set the OMONST field of the object to null
         }
     }
 }
@@ -166,8 +166,8 @@ void
 free_omailcmd(struct obj *otmp)
 {
     if (otmp->oextra && OMAILCMD(otmp)) {
-        free((genericptr_t) OMAILCMD(otmp));
-        OMAILCMD(otmp) = (char *) 0;
+        free((genericptr_t)OMAILCMD(otmp)); // Deallocate the memory for the mail command
+        OMAILCMD(otmp) = (char *)0; // Set the OMAILCMD field of the object to null
     }
 }
 
@@ -2595,15 +2595,7 @@ add_to_migration(struct obj *obj)
 }
 
 void
-add_to_buried(struct obj *obj)
-{
-    if (obj->where != OBJ_FREE)
-        panic("add_to_buried: obj not free");
 
-    obj->where = OBJ_BURIED;
-    obj->nobj = gl.level.buriedobjlist;
-    gl.level.buriedobjlist = obj;
-}
 
 /* Recalculate the weight of this container and all of _its_ containers. */
 static void