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verblibm.h
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verblibm.h
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! ==============================================================================
! VERBLIBM: Core of standard verbs library.
!
! Supplied for use with Inform 6 -- Release 6/12-beta1 -- Serial number 140724
!
! Copyright Graham Nelson 1993-2004 and David Griffith 2012-2014
!
! This code is licensed under either the traditional Inform license as
! described by the DM4 or the Artistic License version 2.0. See the
! file COPYING in the distribution archive or at
! https://github.com/DavidGriffith/inform6lib/
!
! This file is automatically Included in your game file by "VerbLib".
! ==============================================================================
System_file;
#Ifdef MODULE_MODE;
Constant DEBUG;
Constant Grammar__Version 2;
Include "linklpa";
Include "linklv";
#Endif; ! MODULE_MODE
! ------------------------------------------------------------------------------
[ Banner i;
#Ifdef LanguageBanner;
LanguageBanner();
i = 0; ! suppress warning
#Ifnot;
if (Story) {
#Ifdef TARGET_ZCODE;
#IfV5; style bold; #Endif;
print "^", (string) Story;
#IfV5; style roman; #Endif;
#Ifnot; ! TARGET_GLULX;
glk($0086, 3); ! set header style
print (string) Story;
glk($0086, 0); ! set normal style
#Endif; ! TARGET_
}
if (Headline) print (string) Headline;
#Ifdef TARGET_ZCODE;
print "Release ", (HDR_GAMERELEASE-->0) & $03ff, " / Serial number ";
for (i=0 : i<6 : i++) print (char) HDR_GAMESERIAL->i;
#Ifnot; ! TARGET_GLULX;
print "Release ";
@aloads ROM_GAMERELEASE 0 i;
print i;
print " / Serial number ";
for (i=0 : i<6 : i++) print (char) ROM_GAMESERIAL->i;
#Endif; ! TARGET_
print " / Inform v"; inversion;
print " Library ", (string) LibRelease, " ";
#Ifdef STRICT_MODE;
print "S";
#Endif; ! STRICT_MODE
#Ifdef INFIX;
print "X";
#Ifnot;
#Ifdef DEBUG;
print "D";
#Endif; ! DEBUG
#Endif; ! INFIX
new_line;
#Endif; ! LanguageBanner
];
[ VersionSub ix;
#Ifdef LanguageVersionSub;
LanguageVersionSub();
ix = 0; ! suppress warning
#Ifnot;
Banner();
#Ifdef TARGET_ZCODE;
ix = 0; ! shut up compiler warning
if (standard_interpreter > 0) {
print "Standard interpreter ", standard_interpreter/256, ".", standard_interpreter%256,
" (", HDR_TERPNUMBER->0;
#Iftrue (#version_number == 6);
print (char) '.', HDR_TERPVERSION->0;
#Ifnot;
print (char) HDR_TERPVERSION->0;
#Endif;
print ") / ";
}
else {
print "Interpreter ", HDR_TERPNUMBER->0, " Version ";
#Iftrue (#version_number == 6);
print HDR_TERPVERSION->0;
#Ifnot;
print (char) HDR_TERPVERSION->0;
#Endif;
print " / ";
}
#Ifnot; ! TARGET_GLULX;
@gestalt 1 0 ix;
print "Interpreter version ", ix / $10000, ".", (ix & $FF00) / $100,
".", ix & $FF, " / ";
@gestalt 0 0 ix;
print "VM ", ix / $10000, ".", (ix & $FF00) / $100, ".", ix & $FF, " / ";
#Endif; ! TARGET_;
print "Library serial number ", (string) LibSerial, "^";
#Ifdef LanguageVersion;
print (string) LanguageVersion, "^";
#Endif; ! LanguageVersion
#Endif; ! LanguageVersionSub
];
[ RunTimeError n p1 p2;
#Ifdef LanguageError;
LanguageError(n, p1, p2);
#Ifnot;
#Ifdef DEBUG;
print "** Library error ", n, " (", p1, ", ", p2, ") **^** ";
switch (n) {
1: print "preposition not found (this should not occur)";
2: print "Property value not routine or string: ~", (property) p2, "~ of ~", (name) p1,
"~ (", p1, ")";
3: print "Entry in property list not routine or string: ~", (property) p2, "~ list of ~",
(name) p1, "~ (", p1, ")";
4: print "Too many timers/daemons are active simultaneously.
The limit is the library constant MAX_TIMERS
(currently ", MAX_TIMERS, ") and should be increased";
5: print "Object ~", (name) p1, "~ has no ~", (property) p2, "~ property";
7: print "The object ~", (name) p1, "~ can only be used as a player object if it has
the ~number~ property";
8: print "Attempt to take random entry from an empty table array";
9: print p1, " is not a valid direction property number";
10: print "The player-object is outside the object tree";
11: print "The room ~", (name) p1, "~ has no ~", (property) p2, "~ property";
12: print "Tried to set a non-existent pronoun using SetPronoun";
13: print "A 'topic' token can only be followed by a preposition";
14: print "Overflowed buffer limit of ", p1, " using '@@64output_stream 3' ", (string) p2;
15: print "LoopWithinObject broken because the object ", (name) p1, " was moved while the loop passed through it.";
16: print "Attempt to use illegal narrative_voice of ", p1, ".";
default:
print "(unexplained)";
}
" **";
#Ifnot;
"** Library error ", n, " (", p1, ", ", p2, ") **";
#Endif; ! DEBUG
#Endif; ! LanguageError
];
! ----------------------------------------------------------------------------
! The WriteListFrom routine, a flexible object-lister taking care of
! plurals, inventory information, various formats and so on. This is used
! by everything in the library which ever wants to list anything.
!
! If there were no objects to list, it prints nothing and returns false;
! otherwise it returns true.
!
! o is the object, and style is a bitmap, whose bits are given by:
! ----------------------------------------------------------------------------
Constant NEWLINE_BIT $0001; ! New-line after each entry
Constant INDENT_BIT $0002; ! Indent each entry by depth
Constant FULLINV_BIT $0004; ! Full inventory information after entry
Constant ENGLISH_BIT $0008; ! English sentence style, with commas and and
Constant RECURSE_BIT $0010; ! Recurse downwards with usual rules
Constant ALWAYS_BIT $0020; ! Always recurse downwards
Constant TERSE_BIT $0040; ! More terse English style
Constant PARTINV_BIT $0080; ! Only brief inventory information after entry
Constant DEFART_BIT $0100; ! Use the definite article in list
Constant WORKFLAG_BIT $0200; ! At top level (only), only list objects
! which have the "workflag" attribute
Constant ISARE_BIT $0400; ! Print " is" or " are" before list
Constant CONCEAL_BIT $0800; ! Omit objects with "concealed" or "scenery":
! if WORKFLAG_BIT also set, then does _not_
! apply at top level, but does lower down
Constant NOARTICLE_BIT $1000; ! Print no articles, definite or not
Constant ID_BIT $2000; ! Print object id after each entry
[ NextEntry o odepth;
for (::) {
o = sibling(o);
if (o == 0) return 0;
if (lt_value && o.list_together ~= lt_value) continue;
if (c_style & WORKFLAG_BIT && odepth==0 && o hasnt workflag) continue;
if (c_style & CONCEAL_BIT && (o has concealed || o has scenery)) continue;
return o;
}
];
[ WillRecurs o;
if (c_style & ALWAYS_BIT) rtrue;
if (c_style & RECURSE_BIT == 0) rfalse;
if ((o has transparent or supporter) || (o has container && o has open)) rtrue;
rfalse;
];
[ ListEqual o1 o2;
if (child(o1) && WillRecurs(o1)) rfalse;
if (child(o2) && WillRecurs(o2)) rfalse;
if (c_style & (FULLINV_BIT + PARTINV_BIT)) {
if ((o1 hasnt worn && o2 has worn) || (o2 hasnt worn && o1 has worn)) rfalse;
if ((o1 hasnt light && o2 has light) || (o2 hasnt light && o1 has light)) rfalse;
if (o1 has container) {
if (o2 hasnt container) rfalse;
if ((o1 has open && o2 hasnt open) || (o2 has open && o1 hasnt open))
rfalse;
}
else if (o2 has container)
rfalse;
}
return Identical(o1, o2);
];
[ SortTogether obj value;
! print "Sorting together possessions of ", (object) obj, " by value ", value, "^";
! for (x=child(obj) : x : x=sibling(x))
! print (the) x, " no: ", x, " lt: ", x.list_together, "^";
while (child(obj)) {
if (child(obj).list_together ~= value) move child(obj) to out_obj;
else move child(obj) to in_obj;
}
while (child(in_obj)) move child(in_obj) to obj;
while (child(out_obj)) move child(out_obj) to obj;
];
[ SortOutList obj i k l;
! print "^^Sorting out list from ", (name) obj, "^ ";
! for (i=child(location) : i : i=sibling(i))
! print (name) i, " --> ";
! new_line;
.AP_SOL;
for (i=obj : i : i=sibling(i)) {
k = i.list_together;
if (k ~= 0) {
! print "Scanning ", (name) i, " with lt=", k, "^";
for (i=sibling(i) : i && i.list_together == k :) i = sibling(i);
if (i == 0) rfalse;
! print "First not in block is ", (name) i, " with lt=", i.list_together, "^";
for (l=sibling(i) : l : l=sibling(l))
if (l.list_together == k) {
SortTogether(parent(obj), k);
! print "^^After ST:^ ";
! for (i=child(location) : i : i=sibling(i))
! print (name) i, " --> ";
! new_line;
obj = child(parent(obj));
jump AP_SOL;
}
}
}
];
#Ifdef TARGET_ZCODE;
[ Print__Spaces n; ! To avoid a bug occurring in Inform 6.01 to 6.10
if (n == 0) return;
spaces n;
];
#Ifnot; ! TARGET_GLULX;
[ Print__Spaces n;
while (n > 0) {
@streamchar ' ';
n = n - 1;
}
];
#Endif; ! TARGET_
[ WriteListFrom o style depth
s1 s2 s3 s4 s5 s6;
if (o == nothing) return 0;
s1 = c_style; s2 = lt_value; s3 = listing_together;
s4 = listing_size; s5 = wlf_indent; s6 = inventory_stage;
if (o == child(parent(o))) {
SortOutList(o);
o = child(parent(o));
}
c_style = style;
wlf_indent = 0;
if (WriteListR(o, depth) == 0) return 0;
c_style = s1; lt_value = s2; listing_together = s3;
listing_size = s4; wlf_indent = s5; inventory_stage = s6;
rtrue;
];
[ WriteListR o depth stack_pointer classes_p sizes_p i j k k2 l m n q senc mr;
if (depth > 0 && o == child(parent(o))) {
SortOutList(o);
o = child(parent(o));
}
for (::) {
if (o == 0) rfalse;
if (c_style & WORKFLAG_BIT && depth==0 && o hasnt workflag) {
o = sibling(o);
continue;
}
if (c_style & CONCEAL_BIT && (o has concealed || o has scenery)) {
o = sibling(o);
continue;
}
break;
}
classes_p = match_classes + stack_pointer;
sizes_p = match_list + stack_pointer;
for (i=o,j=0 : i && (j+stack_pointer)<128 : i=NextEntry(i,depth),j++) {
classes_p->j = 0;
if (i.plural) k++;
}
if (c_style & ISARE_BIT) {
if (j == 1 && o hasnt pluralname) Tense(IS__TX, WAS__TX);
else Tense(ARE__TX, WERE__TX);
if (c_style & NEWLINE_BIT) print ":^";
else print (char) ' ';
c_style = c_style - ISARE_BIT;
}
stack_pointer = stack_pointer+j+1;
if (k < 2) jump EconomyVersion; ! It takes two to plural
n = 1;
for (i=o,k=0 : k<j : i=NextEntry(i,depth),k++)
if (classes_p->k == 0) {
classes_p->k = n; sizes_p->n = 1;
for (l=NextEntry(i,depth),m=k+1 : l && m<j : l=NextEntry(l,depth),m++)
if (classes_p->m == 0 && i.plural && l.plural ~= 0) {
if (ListEqual(i, l) == 1) {
sizes_p->n = sizes_p->n + 1;
classes_p->m = n;
}
}
n++;
}
n--;
for (i=1,j=o,k=0 : i<=n : i++,senc++) {
while (((classes_p->k) ~= i) && ((classes_p->k) ~= -i)) {
k++; j=NextEntry(j, depth);
}
m = sizes_p->i;
if (j == 0) mr = 0;
else {
if (j.list_together ~= 0 or lt_value && ZRegion(j.list_together) == Routine or String &&
j.list_together == mr) senc--;
mr = j.list_together;
}
}
senc--;
for (i=1,j=o,k=0,mr=0 : senc>=0 : i++,senc--) {
while (((classes_p->k) ~= i) && ((classes_p->k) ~= -i)) {
k++; j=NextEntry(j, depth);
}
if (j.list_together ~= 0 or lt_value) {
if (j.list_together == mr) {
senc++;
jump Omit_FL2;
}
k2 = NextEntry(j, depth);
if (k2 == 0 || k2.list_together ~= j.list_together) jump Omit_WL2;
k2 = metaclass(j.list_together);
if (k2 == Routine or String) {
q = j; listing_size = 1; l = k; m = i;
while (m < n && q.list_together == j.list_together) {
m++;
while (((classes_p->l) ~= m) && ((classes_p->l) ~= -m)) {
l++; q = NextEntry(q, depth);
}
if (q.list_together == j.list_together) listing_size++;
}
! print " [", listing_size, "] ";
if (listing_size == 1) jump Omit_WL2;
if (c_style & INDENT_BIT) Print__Spaces(2*(depth+wlf_indent));
if (k2 == String) {
q = 0;
for (l=0 : l<listing_size : l++) q = q+sizes_p->(l+i);
EnglishNumber(q); print " ";
print (string) j.list_together;
if (c_style & ENGLISH_BIT) print " (";
if (c_style & INDENT_BIT) print ":^";
}
q = c_style;
if (k2 ~= String) {
inventory_stage = 1;
parser_one = j; parser_two = depth+wlf_indent;
if (RunRoutines(j, list_together) == 1) jump Omit__Sublist2;
}
#Ifdef TARGET_ZCODE;
@push lt_value; @push listing_together; @push listing_size;
#Ifnot; ! TARGET_GLULX;
@copy lt_value sp; @copy listing_together sp; @copy listing_size sp;
#Endif; ! TARGET_;
lt_value = j.list_together; listing_together = j; wlf_indent++;
WriteListR(j, depth, stack_pointer); wlf_indent--;
#Ifdef TARGET_ZCODE;
@pull listing_size; @pull listing_together; @pull lt_value;
#Ifnot; ! TARGET_GLULX;
@copy sp listing_size;
@copy sp listing_together;
@copy sp lt_value;
#Endif; ! TARGET_;
if (k2 == String) {
if (q & ENGLISH_BIT) print ")";
}
else {
inventory_stage = 2;
parser_one = j; parser_two = depth+wlf_indent;
RunRoutines(j, list_together);
}
.Omit__Sublist2;
if (q & NEWLINE_BIT && c_style & NEWLINE_BIT == 0) new_line;
c_style = q;
mr = j.list_together;
jump Omit_EL2;
}
}
.Omit_WL2;
if (WriteBeforeEntry(j, depth, 0, senc) == 1) jump Omit_FL2;
if (sizes_p->i == 1) {
if (c_style & NOARTICLE_BIT) print (name) j;
else {
if (c_style & DEFART_BIT) print (the) j;
else print (a) j;
}
if (c_style & ID_BIT) print " (", j, ")";
}
else {
if (c_style & DEFART_BIT) PrefaceByArticle(j, 1, sizes_p->i);
print (number) sizes_p->i, " ";
PrintOrRun(j, plural, 1);
}
if (sizes_p->i > 1 && j hasnt pluralname) {
give j pluralname;
WriteAfterEntry(j, depth, stack_pointer);
give j ~pluralname;
}
else {
WriteAfterEntry(j,depth,stack_pointer);
}
.Omit_EL2;
if (c_style & ENGLISH_BIT) {
if (senc == 1) print (SerialComma) i+senc, (string) AND__TX;
if (senc > 1) print (string) COMMA__TX;
}
.Omit_FL2;
}
rtrue;
.EconomyVersion;
n = j;
for (i=1,j=o : i<=n : j=NextEntry(j,depth),i++,senc++) {
if (j.list_together ~= 0 or lt_value && ZRegion(j.list_together) == 2 or 3 &&
j.list_together==mr) senc--;
mr = j.list_together;
}
for (i=1,j=o,mr=0 : i<=senc : j=NextEntry(j,depth),i++) {
if (j.list_together ~= 0 or lt_value) {
if (j.list_together == mr) {
i--;
jump Omit_FL;
}
k = NextEntry(j, depth);
if (k == 0 || k.list_together ~= j.list_together) jump Omit_WL;
k = metaclass(j.list_together);
if (k == Routine or String) {
if (c_style & INDENT_BIT) Print__Spaces(2*(depth+wlf_indent));
if (k == String) {
q = j; l = 0;
do {
q = NextEntry(q, depth); l++;
} until (q == 0 || q.list_together ~= j.list_together);
EnglishNumber(l); print " ";
print (string) j.list_together;
if (c_style & ENGLISH_BIT) print " (";
if (c_style & INDENT_BIT) print ":^";
}
q = c_style;
if (k ~= String) {
inventory_stage = 1;
parser_one = j; parser_two = depth+wlf_indent;
if (RunRoutines(j, list_together) == 1) jump Omit__Sublist;
}
#Ifdef TARGET_ZCODE;
@push lt_value; @push listing_together; @push listing_size;
#Ifnot; ! TARGET_GLULX;
@copy lt_value sp; @copy listing_together sp; @copy listing_size sp;
#Endif; ! TARGET_;
lt_value = j.list_together; listing_together = j; wlf_indent++;
WriteListR(j, depth, stack_pointer); wlf_indent--;
#Ifdef TARGET_ZCODE;
@pull listing_size; @pull listing_together; @pull lt_value;
#Ifnot; ! TARGET_GLULX;
@copy sp listing_size; @copy sp listing_together; @copy sp lt_value;
#Endif; ! TARGET_;
if (k == String) {
if (q & ENGLISH_BIT) print ")";
}
else {
inventory_stage = 2;
parser_one = j; parser_two = depth+wlf_indent;
RunRoutines(j, list_together);
}
.Omit__Sublist;
if (q & NEWLINE_BIT && c_style & NEWLINE_BIT == 0) new_line;
c_style = q;
mr = j.list_together;
jump Omit_EL;
}
}
.Omit_WL;
if (WriteBeforeEntry(j, depth, i, senc) == 1) jump Omit_FL;
if (c_style & NOARTICLE_BIT) print (name) j;
else {
if (c_style & DEFART_BIT) print (the) j;
else print (a) j;
}
if (c_style & ID_BIT) print " (", j, ")";
WriteAfterEntry(j, depth, stack_pointer);
.Omit_EL;
if (c_style & ENGLISH_BIT) {
if (i == senc-1) print (SerialComma) senc, (string) AND__TX;
if (i < senc-1) print (string) COMMA__TX;
}
.Omit_FL;
}
]; ! end of WriteListR
[ WriteBeforeEntry o depth ipos sentencepos
flag;
inventory_stage = 1;
if (c_style & INDENT_BIT) Print__Spaces(2*(depth+wlf_indent));
if (o.invent && (c_style & (PARTINV_BIT|FULLINV_BIT))) {
flag = PrintOrRun(o, invent, 1);
if (flag) {
if (c_style & ENGLISH_BIT) {
if (ipos == sentencepos-1)
print (SerialComma) sentencepos, (string) AND__TX;
if (ipos < sentencepos-1)
print (string) COMMA__TX;
}
if (c_style & NEWLINE_BIT) new_line;
}
}
return flag;
];
[ WriteAfterEntry o depth stack_p
p recurse_flag parenth_flag eldest_child child_count combo i j;
inventory_stage = 2;
if (c_style & PARTINV_BIT) {
if (o.invent && RunRoutines(o, invent))
if (c_style & NEWLINE_BIT) ""; else rtrue;
combo = 0;
if (o has light && location hasnt light) combo=combo+1;
if (o has container && o hasnt open) combo=combo+2;
if ((o has container && (o has open || o has transparent))) {
objectloop(i in o) {
if (i has concealed or scenery) j = false;
if (i hasnt concealed && i hasnt scenery) j = true;
}
if (~~j) combo=combo+4;
}
if (combo) L__M(##ListMiscellany, combo, o);
} ! end of PARTINV_BIT processing
if (c_style & FULLINV_BIT) {
if (o.invent && RunRoutines(o, invent))
if (c_style & NEWLINE_BIT) ""; else rtrue;
if (o has light && o has worn) { L__M(##ListMiscellany, 8, o); parenth_flag = true; }
else {
if (o has light) { L__M(##ListMiscellany, 9, o); parenth_flag = true; }
if (o has worn) { L__M(##ListMiscellany, 10, o); parenth_flag = true; }
}
if (o has container)
if (o has openable) {
if (parenth_flag) print (string) AND__TX;
else L__M(##ListMiscellany, 11, o);
if (o has open)
if (child(o)) L__M(##ListMiscellany, 12, o);
else L__M(##ListMiscellany, 13, o);
else
if (o has lockable && o has locked) L__M(##ListMiscellany, 15, o);
else L__M(##ListMiscellany, 14, o);
parenth_flag = true;
}
else
if (child(o)==0 && o has transparent)
if (parenth_flag) L__M(##ListMiscellany, 16, o);
else L__M(##ListMiscellany, 17, o);
if (parenth_flag) print ")";
} ! end of FULLINV_BIT processing
if (c_style & CONCEAL_BIT) {
child_count = 0;
objectloop (p in o)
if (p hasnt concealed && p hasnt scenery) { child_count++; eldest_child = p; }
}
else { child_count = children(o); eldest_child = child(o); }
if (child_count && (c_style & ALWAYS_BIT)) {
if (c_style & ENGLISH_BIT) L__M(##ListMiscellany, 18, o);
recurse_flag = true;
}
if (child_count && (c_style & RECURSE_BIT)) {
if (o has supporter) {
if (c_style & ENGLISH_BIT) {
if (c_style & TERSE_BIT) L__M(##ListMiscellany, 19, o);
else L__M(##ListMiscellany, 20, o);
if (o has animate) print (string) WHOM__TX;
else print (string) WHICH__TX;
}
recurse_flag = true;
}
if (o has container && (o has open || o has transparent)) {
if (c_style & ENGLISH_BIT) {
if (c_style & TERSE_BIT) L__M(##ListMiscellany, 21, o);
else L__M(##ListMiscellany, 22, o);
if (o has animate) print (string) WHOM__TX;
else print (string) WHICH__TX;
}
recurse_flag = true;
}
}
if (recurse_flag && (c_style & ENGLISH_BIT))
if (child_count > 1 || eldest_child has pluralname) Tense(ARE2__TX, WERE2__TX);
else Tense(IS2__TX, WAS2__TX);
if (c_style & NEWLINE_BIT) new_line;
if (recurse_flag) {
o = child(o);
#Ifdef TARGET_ZCODE;
@push lt_value; @push listing_together; @push listing_size;
#Ifnot; ! TARGET_GLULX;
@copy lt_value sp; @copy listing_together sp; @copy listing_size sp;
#Endif;
lt_value = 0; listing_together = 0; listing_size = 0;
WriteListR(o, depth+1, stack_p);
#Ifdef TARGET_ZCODE;
@pull listing_size; @pull listing_together; @pull lt_value;
#Ifnot; ! TARGET_GLULX;
@copy sp listing_size; @copy sp listing_together; @copy sp lt_value;
#Endif;
if (c_style & TERSE_BIT) print ")";
}
];
! ----------------------------------------------------------------------------
! LoopWithinObject(rtn,obj,arg)
!
! rtn is the address of a user-supplied routine.
! obj is an optional parent object whose dependents are to be processed; the
! default is the current actor (normally the player).
! arg is an optional argument passed to the rtn; this can be a single variable
! or constant, or the address of an array (which enables multiple values to be
! passed and returned).
!
! For each object o which is a child, grandchild, great-grandchild, etc, of the
! original obj, LoopWithinObject() calls rtn(o,arg).
!
! The rtn should perform any appropriate testing or processing on each object o,
! using the optional arg value if necessary. If the rtn returns true (or any
! positive value), the children of o, if any, are also tested; those children
! are skipped if rtn returns false. To terminate the loop before all objects
! have been processed, rtn should return a large negative number (eg -99).
!
! To deal with supporters and open containers, so that objects are processed
! only if they are accessible to the player, rtn might end with these
! statements:
! if ((o has transparent or supporter) || (o has container && o has open)) rtrue;
! rfalse;
! or alternatively with:
! c_style = RECURSE_BIT; return WillRecurs(o);
!
! LoopWithinObject() returns the number of objects which have been processed.
! ----------------------------------------------------------------------------
[ LoopWithinObject rtn obj arg
n o x y;
if (obj == 0) obj = actor;
o = child(obj);
while (o) {
y = parent(o); n++;
x = rtn(o, arg); ! user-supplied routine returning x.
! if x < 0: skip up to next parent
! if x = 0: jump across to next sibling
! if x > 0: continue down to child objects
if (y ~= parent(o)) { RunTimeError(15, o); rfalse; }
if (x > 0 && child(o)) o = child(o);
else
while (o) {
if (++x > 0 && sibling(o)) { o = sibling(o); break; }
o = parent(o);
if (o == obj) return n;
}
}
];
! ----------------------------------------------------------------------------
! Much better menus can be created using one of the optional library
! extensions. These are provided for compatibility with previous practice:
! ----------------------------------------------------------------------------
[ LowKey_Menu menu_choices EntryR ChoiceR lines main_title i j;
menu_nesting++;
.LKRD;
menu_item = 0;
lines = EntryR();
main_title = item_name;
print "--- "; print (string) main_title; print " ---^^";
if (menu_choices ofclass Routine) menu_choices();
else print (string) menu_choices;
for (::) {
L__M(##Miscellany, 52, lines);
print "> ";
#Ifdef TARGET_ZCODE;
#IfV3;
read buffer parse;
#Ifnot;
read buffer parse DrawStatusLine;
#Endif; ! V3
j = parse->1; ! number of words
#Ifnot; ! TARGET_GLULX;
KeyboardPrimitive(buffer, parse);
j = parse-->0; ! number of words
#Endif; ! TARGET_
i = parse-->1;
if (j == 0 || (i == QUIT1__WD or QUIT2__WD)) {
menu_nesting--; if (menu_nesting > 0) rfalse;
if (deadflag == 0) <<Look>>;
rfalse;
}
i = TryNumber(1);
if (i == 0) jump LKRD;
if (i < 1 || i > lines) continue;
menu_item = i;
j = ChoiceR();
if (j == 2) jump LKRD;
if (j == 3) rfalse;
}
];
#Ifdef TARGET_ZCODE;
#IfV3;
[ DoMenu menu_choices EntryR ChoiceR; LowKey_Menu(menu_choices, EntryR, ChoiceR); ];
#Endif; ! V3
#IfV5;
[ DoMenu menu_choices EntryR ChoiceR
lines main_title main_wid cl i j oldcl pkey ch cw y x;
if (pretty_flag == 0) return LowKey_Menu(menu_choices, EntryR, ChoiceR);
menu_nesting++;
menu_item = 0;
lines = EntryR();
main_title = item_name; main_wid = item_width;
cl = 7;
.ReDisplay;
oldcl = 0;
@erase_window $ffff;
#Iftrue (#version_number == 6);
@set_cursor -1;
ch = HDR_FONTWUNITS->0;
#Ifnot;
ch = 1;
#Endif;
i = ch * (lines+7);
@split_window i;
i = HDR_SCREENWCHARS->0;
if (i == 0) i = 80;
@set_window 1;
@set_cursor 1 1;
#Iftrue (#version_number == 6);
@set_font 4 -> cw;
cw = HDR_FONTHUNITS->0;
#Ifnot;
cw = 1;
#Endif;
style reverse;
spaces(i); j=1+(i/2-main_wid)*cw;
@set_cursor 1 j;
print (string) main_title;
y=1+ch; @set_cursor y 1; spaces(i);
x=1+cw; @set_cursor y x; print (string) NKEY__TX;
j=1+(i-13)*cw; @set_cursor y j; print (string) PKEY__TX;
y=y+ch; @set_cursor y 1; spaces(i);
@set_cursor y x; print (string) RKEY__TX;
j=1+(i-18)*cw; @set_cursor y j;
if (menu_nesting == 1) print (string) QKEY1__TX;
else print (string) QKEY2__TX;
style roman;
y = y+2*ch;
@set_cursor y x; font off;
if (menu_choices ofclass String) print (string) menu_choices;
else menu_choices();
x = 1+3*cw;
for (::) {
if (cl ~= oldcl) {
if (oldcl>0) {
y=1+(oldcl-1)*ch; @set_cursor y x; print " ";
}
y=1+(cl-1)*ch; @set_cursor y x; print ">";
}
oldcl = cl;
@read_char 1 -> pkey;
if (pkey == NKEY1__KY or NKEY2__KY or 130) {
cl++; if (cl == 7+lines) cl = 7; continue;
}
if (pkey == PKEY1__KY or PKEY2__KY or 129) {
cl--; if (cl == 6) cl = 6+lines; continue;
}
if (pkey == QKEY1__KY or QKEY2__KY or 27 or 131) break;
if (pkey == 10 or 13 or 132) {
@set_window 0; font on;
new_line; new_line; new_line;
menu_item = cl-6;
EntryR();
@erase_window $ffff;
@split_window ch;
i = HDR_SCREENWCHARS->0; if ( i== 0) i = 80;
@set_window 1; @set_cursor 1 1; style reverse; spaces(i);
j=1+(i/2-item_width)*cw;
@set_cursor 1 j;
print (string) item_name;
style roman; @set_window 0; new_line;
i = ChoiceR();
if (i == 2) jump ReDisplay;
if (i == 3) break;
L__M(##Miscellany, 53);
@read_char 1 -> pkey; jump ReDisplay;
}
}
menu_nesting--; if (menu_nesting > 0) rfalse;
font on; @set_cursor 1 1;
@erase_window $ffff; @set_window 0;
#Iftrue (#version_number == 6);
@set_cursor -2;
#Endif;
new_line; new_line; new_line;
if (deadflag == 0) <<Look>>;
];
#Endif; ! V5
#Ifnot; ! TARGET_GLULX
[ DoMenu menu_choices EntryR ChoiceR
winwid winhgt lines main_title main_wid cl i oldcl pkey;
if (pretty_flag == 0 || gg_statuswin == 0) return LowKey_Menu(menu_choices, EntryR, ChoiceR);
menu_nesting++;
menu_item = 0;
lines = EntryR();
main_title = item_name;
main_wid = item_width;
cl = 0;
! If we printed "hit arrow keys" here, it would be appropriate to
! check for the availability of Glk input keys. But we actually
! print "hit N/P/Q". So it's reasonable to silently accept Glk
! arrow key codes as secondary options.
.ReDisplay;
glk($002A, gg_statuswin); ! window_clear
glk($002A, gg_mainwin); ! window_clear
glk($002F, gg_statuswin); ! set_window
StatusLineHeight(lines+7);
glk($0025, gg_statuswin, gg_arguments, gg_arguments+4); ! window_get_size
winwid = gg_arguments-->0;
winhgt = gg_arguments-->1;
glk($0086, 4); ! set subheader style
glk($002B, gg_statuswin, winwid/2-main_wid, 0); ! window_move_cursor
print (string) main_title;
glk($002B, gg_statuswin, 1, 1); ! window_move_cursor
print (string) NKEY__TX;
glk($002B, gg_statuswin, winwid-13, 1); ! window_move_cursor
print (string) PKEY__TX;
glk($002B, gg_statuswin, 1, 2); ! window_move_cursor
print (string) RKEY__TX;
glk($002B, gg_statuswin, winwid-18, 2); ! window_move_cursor
if (menu_nesting == 1) print (string) QKEY1__TX;
else print (string) QKEY2__TX;
glk($0086, 0); ! set normal style
glk($002B, gg_statuswin, 1, 4); ! window_move_cursor
if (menu_choices ofclass String) print (string) menu_choices;
else menu_choices();
oldcl = -1;
for (::) {
if (cl ~= oldcl) {
if (cl < 0 || cl >= lines) cl = 0;
if (oldcl >= 0) {
glk($002B, gg_statuswin, 3, oldcl+6);
print (char) ' ';
}
oldcl = cl;
glk($002B, gg_statuswin, 3, oldcl+6);
print (char) '>';
}
pkey = KeyCharPrimitive(gg_statuswin, true);
if (pkey == $80000000) jump ReDisplay;
if (pkey == NKEY1__KY or NKEY2__KY or $fffffffb) {
cl++;
if (cl >= lines) cl = 0;
continue;
}
if (pkey == PKEY1__KY or PKEY2__KY or $fffffffc) {
cl--;
if (cl < 0) cl = lines-1;
continue;
}
if (pkey == QKEY1__KY or QKEY2__KY or $fffffff8 or $fffffffe) break;
if (pkey == $fffffffa or $fffffffd) {
glk($002F, gg_mainwin); ! set_window
new_line; new_line; new_line;
menu_item = cl+1;
EntryR();
glk($002A, gg_statuswin); ! window_clear
glk($002A, gg_mainwin); ! window_clear
glk($002F, gg_statuswin); ! set_window
StatusLineHeight(1);
glk($0025, gg_statuswin, gg_arguments, gg_arguments+4); ! window_get_size
winwid = gg_arguments-->0;
winhgt = gg_arguments-->1;
glk($0086, 4); ! set subheader style
glk($002B, gg_statuswin, winwid/2-item_width, 0); ! window_move_cursor
print (string) item_name;
glk($0086, 0); ! set normal style
glk($002F, gg_mainwin); ! set_window