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|
/*
** File: object.c
**
** (C)opyright 1987-1992 InfoTaskforce.
*/
#include "infocom.h"
Void
std_transfer ( o1,o2 )
word o1 ;
word o2 ;
{
extern std_object_ptr std_obj_list ;
extern boolean xfer ;
register std_object_ptr obj1 ;
register std_object_ptr obj2 ;
std_remove_obj ( o1 ) ;
obj1 = STD_OBJ_ADDR ( o1 ) ;
obj2 = STD_OBJ_ADDR ( o2 ) ;
obj1 -> link[0] = obj2 -> holds[0] ;
obj1 -> location[0] = (byte) o2 ;
obj2 -> holds[0] = (byte) o1 ;
#ifdef CHEAT
if ( xfer )
{ /* patch level 1 installed --mlk */
print_char ( (word)'[' ) ;
std_p_obj ( o1 ) ;
print_char ( (word)' ' ) ;
print_char ( (word)'-' ) ;
print_char ( (word)'>' ) ;
print_char ( (word)' ' ) ;
std_p_obj ( o2 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
plus_transfer ( o1,o2 )
word o1 ;
word o2 ;
{
extern plus_object_ptr plus_obj_list ;
extern boolean xfer ;
register plus_object_ptr obj1 ;
register plus_object_ptr obj2 ;
plus_remove_obj ( o1 ) ;
obj1 = PLUS_OBJ_ADDR ( o1 ) ;
obj2 = PLUS_OBJ_ADDR ( o2 ) ;
obj1 -> link[0] = obj2 -> holds[0] ;
obj1 -> link[1] = obj2 -> holds[1] ;
obj1 -> location[0] = (byte)( o2 >> BITS_PER_BYTE ) ;
obj1 -> location[1] = (byte) o2 ;
obj2 -> holds[0] = (byte)( o1 >> BITS_PER_BYTE ) ;
obj2 -> holds[1] = (byte) o1 ;
#ifdef CHEAT
if ( xfer )
{ /* patch level 1 installed -mlk */
print_char ( (word)'[' ) ;
plus_p_obj ( o1 ) ;
print_char ( (word)' ' ) ;
print_char ( (word)'-' ) ;
print_char ( (word)'>' ) ;
print_char ( (word)' ' ) ;
plus_p_obj ( o2 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
std_remove_obj ( obj_num )
word obj_num ;
{
extern std_object_ptr std_obj_list ;
register std_object_ptr obj1 ;
register std_object_ptr obj2 ;
obj1 = STD_OBJ_ADDR ( obj_num ) ;
if ( obj1 -> location[0] != 0 )
{
obj2 = STD_OBJ_ADDR ((word)(obj1 -> location[0])) ;
if ( obj2 -> holds[0] == (byte)obj_num )
obj2 -> holds[0] = obj1 -> link[0] ;
else
{
obj2 = STD_OBJ_ADDR ((word)(obj2 -> holds[0])) ;
while ( obj2 -> link[0] != (byte)obj_num )
obj2 = STD_OBJ_ADDR ((word)(obj2 -> link[0])) ;
obj2 -> link[0] = obj1 -> link[0] ;
}
obj1 -> location[0] = 0 ;
obj1 -> link[0] = 0 ;
}
}
Void
plus_remove_obj ( obj_num )
word obj_num ;
{
extern plus_object_ptr plus_obj_list ;
register plus_object_ptr obj1 ;
register plus_object_ptr obj2 ;
register word temp ;
obj1 = PLUS_OBJ_ADDR ( obj_num ) ;
temp = ((obj1 -> location[0]) << BITS_PER_BYTE) | (obj1 -> location[1]) ;
if ( temp != 0 )
{
obj2 = PLUS_OBJ_ADDR ( temp ) ;
temp = ((obj2 -> holds[0]) << BITS_PER_BYTE) | (obj2 -> holds[1]) ;
if ( temp == obj_num )
{
obj2 -> holds[0] = obj1 -> link[0] ;
obj2 -> holds[1] = obj1 -> link[1] ;
}
else
{
temp = ((obj2 -> holds[0]) << BITS_PER_BYTE) | (obj2 -> holds[1]) ;
obj2 = PLUS_OBJ_ADDR ( temp ) ;
temp = ((obj2 -> link[0]) << BITS_PER_BYTE) | (obj2 -> link[1]) ;
while ( temp != obj_num )
{
obj2 = PLUS_OBJ_ADDR ( temp ) ;
temp = ((obj2 -> link[0]) << BITS_PER_BYTE) | (obj2 -> link[1]);
}
obj2 -> link[0] = obj1 -> link[0] ;
obj2 -> link[1] = obj1 -> link[1] ;
}
obj1 -> location[0] = 0 ;
obj1 -> location[1] = 0 ;
obj1 -> link[0] = 0 ;
obj1 -> link[1] = 0 ;
}
}
Void
std_test_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern std_object_ptr std_obj_list ;
extern boolean attribute ;
register std_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = STD_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
#ifdef CHEAT
if ( attribute )
{ /* patch level 1 installed --mlk */
print_char ( (word)'[' ) ;
std_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
if ( obj -> attributes[attr / BITS_PER_BYTE] & attr_bit )
print_num ( 1 ) ;
else
print_num ( 0 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
if ( obj -> attributes[attr / BITS_PER_BYTE] & attr_bit )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
plus_test_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern plus_object_ptr plus_obj_list ;
extern boolean attribute ;
register plus_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
#ifdef CHEAT
if ( attribute )
{ /* patch level 1 installed -mlk */
print_char ( (word)'[' ) ;
plus_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
if ( obj -> attributes[attr / BITS_PER_BYTE] & attr_bit )
print_num ( 1 ) ;
else
print_num ( 0 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
if ( obj -> attributes[attr / BITS_PER_BYTE] & attr_bit )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
std_set_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern std_object_ptr std_obj_list ;
extern boolean attribute ;
register std_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = STD_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
obj -> attributes[attr / BITS_PER_BYTE] |= attr_bit ;
#ifdef CHEAT
if ( attribute )
{ /* patch level 1 installed -mlk */
print_char ( (word)'[' ) ;
std_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)':' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
print_num ( 1 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
plus_set_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern plus_object_ptr plus_obj_list ;
extern boolean attribute ;
register plus_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
obj -> attributes[attr / BITS_PER_BYTE] |= attr_bit ;
#ifdef CHEAT
if ( attribute )
{ /* patch level 1 installed -mlk */
print_char ( (word)'[' ) ;
plus_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)':' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
print_num ( 1 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
std_clr_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern std_object_ptr std_obj_list ;
extern boolean attribute ;
register std_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = STD_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
obj -> attributes[attr / BITS_PER_BYTE] &= ( ~attr_bit ) ;
#ifdef CHEAT
if ( attribute )
{ /* patch level 1 installed -mlk */
print_char ( (word)'[' ) ;
std_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)':' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
print_num ( 0 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
plus_clr_attr ( obj_num,attr )
word obj_num ;
word attr ;
{
extern plus_object_ptr plus_obj_list ;
extern boolean attribute ;
register plus_object_ptr obj ;
register byte attr_bit ;
register int i ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
attr_bit = FIRST_ATTRIBUTE ;
for ( i = 0 ; i < (int)(attr % BITS_PER_BYTE) ; i++ )
attr_bit >>= 1 ;
obj -> attributes[attr / BITS_PER_BYTE] &= ( ~attr_bit ) ;
#ifdef CHEAT
if ( attribute )
{ /* level 1 patch installed -mlk */
print_char ( (word)'[' ) ;
plus_p_obj ( obj_num ) ;
print_char ( (word)'(' ) ;
print_num ( attr ) ;
print_char ( (word)')' ) ;
print_char ( (word)' ' ) ;
print_char ( (word)':' ) ;
print_char ( (word)'=' ) ;
print_char ( (word)' ' ) ;
print_num ( 0 ) ;
print_char ( (word)']' ) ;
new_line () ;
}
#endif /* CHEAT */
}
Void
std_get_loc ( obj_num )
word obj_num ;
{
extern std_object_ptr std_obj_list ;
register std_object_ptr obj ;
obj = STD_OBJ_ADDR ( obj_num ) ;
store ((word)(obj -> location[0])) ;
}
Void
plus_get_loc ( obj_num )
word obj_num ;
{
extern plus_object_ptr plus_obj_list ;
register plus_object_ptr obj ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
store ((word)((obj -> location[0]) << BITS_PER_BYTE )|(obj -> location[1]));
}
Void
std_get_holds ( obj_num )
word obj_num ;
{
extern std_object_ptr std_obj_list ;
register std_object_ptr obj ;
register word temp ;
obj = STD_OBJ_ADDR ( obj_num ) ;
temp = (word)( obj -> holds[0] ) ;
store ( temp ) ;
if ( temp )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
plus_get_holds ( obj_num )
word obj_num ;
{
extern plus_object_ptr plus_obj_list ;
register plus_object_ptr obj ;
register word temp ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
temp = ((obj -> holds[0]) << BITS_PER_BYTE ) | (obj -> holds[1]) ;
store ( temp ) ;
if ( temp )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
std_get_link ( obj_num )
word obj_num ;
{
extern std_object_ptr std_obj_list ;
register std_object_ptr obj ;
register word temp ;
obj = STD_OBJ_ADDR ( obj_num ) ;
temp = (word)( obj -> link[0] ) ;
store ( temp ) ;
if ( temp )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
plus_get_link ( obj_num )
word obj_num ;
{
extern plus_object_ptr plus_obj_list ;
register plus_object_ptr obj ;
register word temp ;
obj = PLUS_OBJ_ADDR ( obj_num ) ;
temp = ((obj -> link[0]) << BITS_PER_BYTE ) | (obj -> link[1]) ;
store ( temp ) ;
if ( temp )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
std_check_loc ( o1,o2 )
word o1 ;
word o2 ;
{
extern std_object_ptr std_obj_list ;
register std_object_ptr obj ;
obj = STD_OBJ_ADDR ( o1 ) ;
if ( obj -> location[0] == (byte)o2 )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
Void
plus_check_loc ( o1,o2 )
word o1 ;
word o2 ;
{
extern plus_object_ptr plus_obj_list ;
register plus_object_ptr obj ;
obj = PLUS_OBJ_ADDR ( o1 ) ;
if ((word)(((obj -> location[0]) << BITS_PER_BYTE ) | (obj -> location[1])) == o2 )
ret_value ( TRUE ) ;
else
ret_value ( FALSE ) ;
}
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