diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/map/script.c | 400 |
1 files changed, 250 insertions, 150 deletions
diff --git a/src/map/script.c b/src/map/script.c index 074b7e3f1..68cbb2bdc 100644 --- a/src/map/script.c +++ b/src/map/script.c @@ -51,9 +51,10 @@ #endif #include <time.h> #include <setjmp.h> +#include <errno.h> /////////////////////////////////////////////////////////////////////////////// -//## TODO possible enhancements: +//## TODO possible enhancements: [FlavioJS] // - 'callfunc' supporting labels in the current npc "::LabelName" // - 'callfunc' supporting labels in other npcs "NpcName::LabelName" // - 'function FuncName;' function declarations reverting to global functions @@ -83,7 +84,7 @@ #define script_getnum(st,val) conv_num(st, script_getdata(st,val)) #define script_getstr(st,val) conv_str(st, script_getdata(st,val)) -#define script_getref(st,val) ( data_varref(script_getdata(st,val)) ) +#define script_getref(st,val) ( script_getdata(st,val)->ref ) // Note: "top" functions/defines use indexes relative to the top of the stack // -1 is the index of the data at the top @@ -110,18 +111,30 @@ /// Returns if the script data is an internal script function label #define data_isfunclabel(data) ( (data)->type == C_USERFUNC_POS ) -/// Returns the unique id of the variable (id and index) -#define data_varuid(data) ( (data)->u.num ) -/// Returns the id of the variable -#define data_varid(data) ( (int32)(data_varuid(data) & 0x00ffffff) ) -/// Returns the array index of the variable -#define data_varindex(data) ( (int32)(((uint32)(data_varuid(data) & 0xff000000)) >> 24) ) -/// Returns the name of the variable -#define data_varname(data) ( str_buf + str_data[data_varid(data)].str ) -/// Returns the reference of the variable (linked list of variables, can be NULL) -#define data_varref(data) ( (data)->ref ) - -#define variable_uid(id,idx) ( (int32)((((uint32)(id)) & 0x00ffffff) | (((uint32)(idx)) << 24)) ) +/// Returns if this is a reference to a constant +#define reference_toconstant(data) ( str_data[reference_getid(data)].type == C_INT ) +/// Returns if this a reference to a param +#define reference_toparam(data) ( str_data[reference_getid(data)].type == C_PARAM ) +/// Returns if this a reference to a variable +//##TODO confirm it's C_NAME [FlavioJS] +#define reference_tovariable(data) ( str_data[reference_getid(data)].type == C_NAME ) +/// Returns the unique id of the reference (id and index) +#define reference_getuid(data) ( (data)->u.num ) +/// Returns the id of the reference +#define reference_getid(data) ( (int32)(reference_getuid(data) & 0x00ffffff) ) +/// Returns the array index of the reference +#define reference_getindex(data) ( (int32)(((uint32)(reference_getuid(data) & 0xff000000)) >> 24) ) +/// Returns the name of the reference +#define reference_getname(data) ( str_buf + str_data[reference_getid(data)].str ) +/// Returns the linked list of uid-value pairs of the reference (can be NULL) +#define reference_getref(data) ( (data)->ref ) +/// Returns the value of the constant +#define reference_getconstant(data) ( str_data[reference_getid(data)].val ) +/// Returns the type of param +#define reference_getparamtype(data) ( str_data[reference_getid(data)].val ) + +/// Composes the uid of a reference from the id and the index +#define reference_uid(id,idx) ( (int32)((((uint32)(id)) & 0x00ffffff) | (((uint32)(idx)) << 24)) ) #define FETCH(n, t) \ if( script_hasdata(st,n) ) \ @@ -424,22 +437,35 @@ static void script_reportdata(struct script_data* data) switch( data->type ) { case C_NOP:// no value - ShowDebug("Data: no value (nil)\n"); + ShowDebug("Data: nothing (nil)\n"); break; case C_INT:// number - ShowDebug("Data: number=%d\n", data->u.num); + ShowDebug("Data: number value=%d\n", data->u.num); break; case C_STR: case C_CONSTSTR:// string - ShowDebug("Data: string=%s\n", data->u.str); + ShowDebug("Data: string value=\"%s\"\n", data->u.str); break; - case C_NAME:// variable - { - char* name = data_varname(data); + case C_NAME:// reference + if( reference_tovariable(data) ) + {// variable + char* name = reference_getname(data); if( not_array_variable(*name) ) - ShowDebug("Data: variable=%s\n", name); + ShowDebug("Data: variable name='%s'\n", name); else - ShowDebug("Data: variable=%s index=%u\n", name, data_varindex(data)); + ShowDebug("Data: variable name='%s' index=%d\n", name, reference_getindex(data)); + } + else if( reference_toconstant(data) ) + {// constant + ShowDebug("Data: constant name='%s' value=%d\n", reference_getname(data), reference_getconstant(data)); + } + else if( reference_toparam(data) ) + {// param + ShowDebug("Data: param name='%s' type=%d\n", reference_getname(data), reference_getparamtype(data)); + } + else + {// ??? + ShowDebug("Data: reference name='%s' type=%s\n", reference_getname(data), script_op2name(data->type)); } break; case C_POS:// label @@ -2056,7 +2082,7 @@ struct script_code* parse_script(const char *src,const char *file,int line,int o } // -// 実行系 +// Script state // enum {RUN = 0,STOP,END,RERUNLINE,GOTO,RETFUNC}; @@ -2072,96 +2098,136 @@ TBL_PC *script_rid2sd(struct script_state *st) return sd; } - -/*========================================== - * Retrieves the value of a script variable - *------------------------------------------*/ +/// Retrieves the value of a script data int get_val(struct script_state* st, struct script_data* data) { + char* name; + char prefix; + char postfix; TBL_PC* sd = NULL; - char *name, prefix, postfix; - - if(!data_isreference(data)) return 0; - name = str_buf + str_data[data->u.num&0x00ffffff].str; - prefix = name[0]; postfix = name[strlen(name)-1]; + if( !data_isreference(data) ) + return 0;// not a variable + + name = reference_getname(data); + prefix = name[0]; + postfix = name[strlen(name) - 1]; - if(not_server_variable(prefix)) { + //##TODO use reference_tovariable(data) when it's confirmed that it works [FlavioJS] + if( !reference_toconstant(data) && !reference_toparam(data) && not_server_variable(prefix) ) + { sd = script_rid2sd(st); - if (!sd) { // needs player attached - // throw error, load some meaningful default values and return - ShowError("get_val error, cannot access player variable '%s'\n", name); - if (postfix == '$') { data->type = C_CONSTSTR; data->u.str = ""; } else { data->type = C_INT; data->u.num = 0; } + if( sd == NULL ) + {// needs player attached + if( postfix == '$' ) + {// string variable + ShowError("script:get_val: cannot access player variable '%s', defaulting to \"\"\n", name); + data->type = C_CONSTSTR; + data->u.str = ""; + } + else + {// integer variable + ShowError("script:get_val: cannot access player variable '%s', defaulting to 0\n", name); + data->type = C_INT; + data->u.num = 0; + } return 0; - } + } } - if(postfix == '$') { // string variable + if( postfix == '$' ) + {// string variable data->type = C_CONSTSTR; - switch (prefix) { + switch( prefix ) + { case '@': - data->u.str = pc_readregstr(sd, data->u.num); break; + data->u.str = pc_readregstr(sd, data->u.num); + break; case '$': - data->u.str = (char *)idb_get(mapregstr_db,data->u.num); break; + data->u.str = (char *)idb_get(mapregstr_db, data->u.num); + break; case '#': - data->u.str = (name[1] == '#') ? pc_readaccountreg2str(sd, name) : pc_readaccountregstr(sd, name); break; - case '.': { - struct linkdb_node** n; - n = (data->ref) ? data->ref : (name[1] == '@') ? st->stack->var_function : &st->script->script_vars; - data->u.str = linkdb_search(n, (void*)data->u.num); + if( name[1] == '#' ) + data->u.str = pc_readaccountreg2str(sd, name);// global + else + data->u.str = pc_readaccountregstr(sd, name);// local + break; + case '.': + { + struct linkdb_node** n = + data->ref ? data->ref: + name[1] == '@' ? st->stack->var_function:// instance/scope variable + &st->script->script_vars;// npc variable + data->u.str = linkdb_search(n, (void*)reference_getuid(data)); } break; default: - data->u.str = pc_readglobalreg_str(sd, name); break; + data->u.str = pc_readglobalreg_str(sd, name); + break; } if( data->u.str == NULL ) data->u.str = ""; - } else { // integer variable + } + else + {// integer variable data->type = C_INT; - if(str_data[data->u.num&0x00ffffff].type == C_INT) { - data->u.num = str_data[data->u.num&0x00ffffff].val; - } else if(str_data[data->u.num&0x00ffffff].type == C_PARAM) { - data->u.num = pc_readparam(sd, str_data[data->u.num&0x00ffffff].val); + if( reference_toconstant(data) ) + { + data->u.num = reference_getconstant(data); + } + else if( reference_toparam(data) ) + { + data->u.num = pc_readparam(sd, reference_getparamtype(data)); } else - switch (prefix) { + switch( prefix ) + { case '@': - data->u.num = pc_readreg(sd, data->u.num); break; + data->u.num = pc_readreg(sd, data->u.num); + break; case '$': - data->u.num = (int)idb_get(mapreg_db, data->u.num); break; + data->u.num = (int)idb_get(mapreg_db, data->u.num); + break; case '#': - data->u.num = (name[1] == '#') ? pc_readaccountreg2(sd, name) : pc_readaccountreg(sd, name); break; - case '.': { - struct linkdb_node** n; - n = (data->ref) ? data->ref : (name[1] == '@') ? st->stack->var_function : &st->script->script_vars; - data->u.num = (int)linkdb_search(n, (void*)data->u.num); + if( name[1] == '#' ) + data->u.str = pc_readaccountreg2str(sd, name);// global + else + data->u.str = pc_readaccountregstr(sd, name);// local + break; + case '.': + { + struct linkdb_node** n = + data->ref ? data->ref: + name[1] == '@' ? st->stack->var_function:// instance/scope variable + &st->script->script_vars;// npc variable + data->u.num = (int)linkdb_search(n, (void*)reference_getuid(data)); } break; default: - data->u.num = pc_readglobalreg(sd, name); break; + data->u.num = pc_readglobalreg(sd, name); + break; } } return 0; } -/*========================================== - * Retrieves the value of a script variable - *------------------------------------------*/ -void* get_val2(struct script_state* st, int num, struct linkdb_node** ref) + +/// Retrieves the value of a reference identified by uid (variable, constant, param) +void* get_val2(struct script_state* st, int uid, struct linkdb_node** ref) { - struct script_data dat; - dat.type = C_NAME; - dat.u.num = num; - dat.ref = ref; - get_val(st, &dat); - return (dat.type == C_INT) ? (void*)dat.u.num : (void*)dat.u.str; + struct script_data data; + data.type = C_NAME; + data.u.num = uid; + data.ref = ref; + get_val(st, &data); + return (data.type == C_INT ? (void*)data.u.num : (void*)data.u.str); } /*========================================== @@ -2235,43 +2301,88 @@ int set_var(TBL_PC* sd, char* name, void* val) return set_reg(NULL, sd, add_str(name), name, val, NULL); } -/*========================================== - * 文字列への変換 - *------------------------------------------*/ -const char* conv_str(struct script_state *st,struct script_data *data) +/// Converts the data to a string +const char* conv_str(struct script_state* st, struct script_data* data) { - get_val(st,data); - if(data_isint(data)){ - char *buf; - CREATE(buf,char,ITEM_NAME_LENGTH); - snprintf(buf,ITEM_NAME_LENGTH, "%d",data->u.num); - buf[ITEM_NAME_LENGTH-1]=0; - data->type=C_STR; - data->u.str=buf; - } else if(data_islabel(data)) { - // Protect from crashes by passing labels to string-expected args [jA2200] + char* p; + + get_val(st, data); + if( data_isstring(data) ) + {// nothing to convert + } + else if( data_isint(data) ) + {// int -> string + CREATE(p, char, ITEM_NAME_LENGTH); + snprintf(p, ITEM_NAME_LENGTH, "%d", data->u.num); + p[ITEM_NAME_LENGTH-1] = '\0'; + data->type = C_STR; + data->u.str = p; + } + else if( data_isreference(data) ) + {// reference -> string + //##TODO when does this happen (check get_val) [FlavioJS] data->type = C_CONSTSTR; - data->u.str = "** SCRIPT ERROR **"; - } else if(data_isreference(data)){ - data->type=C_CONSTSTR; - data->u.str=str_buf+str_data[data->u.num].str; + data->u.str = reference_getname(data); + } + else + {// unsupported data type + ShowError("script:conv_str: cannot convert to string, defaulting to \"\"\n"); + script_reportdata(data); + script_reportsrc(st); + data->type = C_CONSTSTR; + data->u.str = ""; } return data->u.str; } -/*========================================== - * 数値へ変換 - *------------------------------------------*/ -int conv_num(struct script_state *st,struct script_data *data) +/// Converts the data to an int +int conv_num(struct script_state* st, struct script_data* data) { - char *p; - get_val(st,data); - if(data_isstring(data)){ - p=data->u.str; - data->u.num = atoi(p); - if(data->type==C_STR) + char* p; + long num; + + get_val(st, data); + if( data_isint(data) ) + {// nothing to convert + } + else if( data_isstring(data) ) + {// string -> int + // the result does not overflow or underflow, it is capped instead + // ex: 999999999999 is capped to INT_MAX (2147483647) + p = data->u.str; + errno = 0; + num = strtol(data->u.str, NULL, 10);// change radix to 0 to support octal numbers "o377" and hex numbers "0xFF" + if( errno == ERANGE +#if LONG_MAX > INT_MAX + || num < INT_MIN || num > INT_MAX +#endif + ) + { + if( num <= INT_MIN ) + { + num = INT_MIN; + ShowError("script:conv_num: underflow detected, capping to %ld\n", num); + } + else//if( num >= INT_MAX ) + { + num = INT_MAX; + ShowError("script:conv_num: overflow detected, capping to %ld\n", num); + } + script_reportdata(data); + script_reportsrc(st); + } + if( data->type == C_STR ) aFree(p); - data->type=C_INT; + data->type = C_INT; + data->u.num = (int)num; + } + else + {// unsupported data type + ShowError("script:conv_num: cannot convert to number, defaulting to 0\n"); + script_reportdata(data); + script_reportsrc(st); + data->type = C_INT; + data->u.num = 0; } return data->u.num; } @@ -4307,7 +4418,6 @@ struct script_function buildin_func[] = { /// Appends a message to the npc dialog. /// If a dialog doesn't exist yet, one is created. -/// TODO does the client support dialogs with different oid's at the same time? /// /// mes "<message>"; BUILDIN_FUNC(mes) @@ -4448,17 +4558,7 @@ BUILDIN_FUNC(menu) for( i = 2, sd->npc_menu = 0; i < script_lastdata(st); i += 2 ) { // menu options - data = script_getdata(st, i); - get_val(st, data); - if( data_isstring(data) && data_isint(data) ) - {// not a string (or compatible) - StringBuf_Destroy(&buf); - ShowError("script:menu: argument #%d (from 1) is not a string or compatible.\n", (i - 1)); - script_reportdata(data); - st->state = END; - return 1; - } - text = conv_str(st, data);// convert to string + text = script_getstr(st, i); // target label data = script_getdata(st, i+1); @@ -4811,7 +4911,7 @@ BUILDIN_FUNC(return) data = script_getdatatop(st, -1); if( data_isreference(data) ) { - char* name = data_varname(data); + char* name = reference_getname(data); if( name[0] == '.' && name[1] == '@' ) {// temporary script variable, convert to value get_val(st, data); @@ -5330,7 +5430,7 @@ static int32 getarraysize(struct script_state* st, int32 id, int32 idx, int isst { for( ; idx < 128; ++idx ) { - char* str = (char*)get_val2(st, variable_uid(id, idx), ref); + char* str = (char*)get_val2(st, reference_uid(id, idx), ref); if( str && *str ) ret = idx + 1; } @@ -5339,7 +5439,7 @@ static int32 getarraysize(struct script_state* st, int32 id, int32 idx, int isst { for( ; idx < 128; ++idx ) { - int32 num = (int32)get_val2(st, variable_uid(id, idx), ref); + int32 num = (int32)get_val2(st, reference_uid(id, idx), ref); if( num ) ret = idx + 1; } @@ -5370,9 +5470,9 @@ BUILDIN_FUNC(setarray) return 1;// not a variable } - id = data_varid(data); - start = data_varindex(data); - name = data_varname(data); + id = reference_getid(data); + start = reference_getindex(data); + name = reference_getname(data); if( not_array_variable(*name) ) { ShowError("script:setarray: illegal scope\n"); @@ -5397,7 +5497,7 @@ BUILDIN_FUNC(setarray) for( i = 3; start < end; ++start, ++i ) { void* v = (void*)script_getstr(st,i); - set_reg(st, sd, variable_uid(id, start), name, v, data_varref(data)); + set_reg(st, sd, reference_uid(id, start), name, v, reference_getref(data)); } } else @@ -5405,7 +5505,7 @@ BUILDIN_FUNC(setarray) for( i = 3; start < end; ++start, ++i ) { void* v = (void*)script_getnum(st,i); - set_reg(st, sd, variable_uid(id, start), name, v, data_varref(data)); + set_reg(st, sd, reference_uid(id, start), name, v, reference_getref(data)); } } return 0; @@ -5434,9 +5534,9 @@ BUILDIN_FUNC(cleararray) return 1;// not a variable } - id = data_varid(data); - start = data_varindex(data); - name = data_varname(data); + id = reference_getid(data); + start = reference_getindex(data); + name = reference_getname(data); if( not_array_variable(*name) ) { ShowError("script:cleararray: illegal scope\n"); @@ -5462,7 +5562,7 @@ BUILDIN_FUNC(cleararray) end = 127; for( ; start < end; ++start ) - set_reg(st, sd, variable_uid(id, start), name, v, script_getref(st,2)); + set_reg(st, sd, reference_uid(id, start), name, v, script_getref(st,2)); return 0; } @@ -5496,12 +5596,12 @@ BUILDIN_FUNC(copyarray) return 1;// not a variable } - id1 = data_varid(data1); - id2 = data_varid(data2); - idx1 = data_varindex(data1); - idx2 = data_varindex(data2); - name1 = data_varname(data1); - name2 = data_varname(data2); + id1 = reference_getid(data1); + id2 = reference_getid(data2); + idx1 = reference_getindex(data1); + idx2 = reference_getindex(data2); + name1 = reference_getname(data1); + name2 = reference_getname(data2); if( not_array_variable(*name1) || not_array_variable(*name2) ) { ShowError("script:copyarray: illegal scope\n"); @@ -5537,8 +5637,8 @@ BUILDIN_FUNC(copyarray) {// destination might be overlapping the source - copy in reverse order for( i = count - 1; i >= 0; --i ) { - v = get_val2(st, variable_uid(id2, idx2 + i), data_varref(data2)); - set_reg(st, sd, variable_uid(id1, idx1 + i), name1, v, data_varref(data1)); + v = get_val2(st, reference_uid(id2, idx2 + i), reference_getref(data2)); + set_reg(st, sd, reference_uid(id1, idx1 + i), name1, v, reference_getref(data1)); } } else @@ -5546,10 +5646,10 @@ BUILDIN_FUNC(copyarray) for( i = 0; i < count; ++i ) { if( id2 + i < 128 ) - v = get_val2(st, variable_uid(id2, idx2 + i), data_varref(data2)); + v = get_val2(st, reference_uid(id2, idx2 + i), reference_getref(data2)); else// out of range - assume ""/0 v = (void*)(is_string_variable(name1) ? "" : 0); - set_reg(st, sd, variable_uid(id1, idx1 + i), name1, v, data_varref(data1)); + set_reg(st, sd, reference_uid(id1, idx1 + i), name1, v, reference_getref(data1)); } } return 0; @@ -5575,7 +5675,7 @@ BUILDIN_FUNC(getarraysize) return 1;// not a variable } - name = data_varname(data); + name = reference_getname(data); if( not_array_variable(*name) ) { ShowError("script:getarraysize: illegal scope\n"); @@ -5585,7 +5685,7 @@ BUILDIN_FUNC(getarraysize) return 1;// not supported } - script_pushint(st, getarraysize(st, data_varid(data), data_varindex(data), is_string_variable(name), data_varref(data))); + script_pushint(st, getarraysize(st, reference_getid(data), reference_getindex(data), is_string_variable(name), reference_getref(data))); return 0; } @@ -5612,9 +5712,9 @@ BUILDIN_FUNC(deletearray) return 1;// not a variable } - id = data_varid(data); - start = data_varindex(data); - name = data_varname(data); + id = reference_getid(data); + start = reference_getindex(data); + name = reference_getname(data); if( not_array_variable(*name) ) { ShowError("script:deletearray: illegal scope\n"); @@ -5630,7 +5730,7 @@ BUILDIN_FUNC(deletearray) return 1;// no player attached } - end = getarraysize(st, id, start, is_string_variable(name), data_varref(data)); + end = getarraysize(st, id, start, is_string_variable(name), reference_getref(data)); if( start >= end ) return 0;// nothing to free @@ -5645,8 +5745,8 @@ BUILDIN_FUNC(deletearray) // move rest of the elements backward for( ; start + count < end; ++start ) { - void* v = get_val2(st, variable_uid(id, start + count), data_varref(data)); - set_reg(st, sd, variable_uid(id, start), name, v, data_varref(data)); + void* v = get_val2(st, reference_uid(id, start + count), reference_getref(data)); + set_reg(st, sd, reference_uid(id, start), name, v, reference_getref(data)); } } @@ -5654,12 +5754,12 @@ BUILDIN_FUNC(deletearray) if( is_string_variable(name) ) { for( ; start < end; ++start ) - set_reg(st, sd, variable_uid(id, start), name, (void*)0, data_varref(data)); + set_reg(st, sd, reference_uid(id, start), name, (void*)0, reference_getref(data)); } else { for( ; start < end; ++start ) - set_reg(st, sd, variable_uid(id, start), name, (void *)"", data_varref(data)); + set_reg(st, sd, reference_uid(id, start), name, (void *)"", reference_getref(data)); } return 0; } @@ -5685,8 +5785,8 @@ BUILDIN_FUNC(getelementofarray) return 1;// not a variable } - id = data_varid(data); - name = data_varname(data); + id = reference_getid(data); + name = reference_getname(data); if( not_array_variable(*name) ) { ShowError("script:getelementofarray: illegal scope\n"); @@ -5706,7 +5806,7 @@ BUILDIN_FUNC(getelementofarray) return 1;// out of range } - push_val2(st->stack, C_NAME, variable_uid(id, i), data_varref(data)); + push_val2(st->stack, C_NAME, reference_uid(id, i), reference_getref(data)); return 0; } @@ -13563,7 +13663,7 @@ BUILDIN_FUNC(getvariableofnpc) return 1; } - name = data_varname(data); + name = reference_getname(data); if( *name != '.' || name[1] == '@' ) {// not a npc variable ShowError("script:getvariableofnpc: invalid scope (not npc variable)\n"); @@ -13582,7 +13682,7 @@ BUILDIN_FUNC(getvariableofnpc) return 1; } - push_val2(st->stack, C_NAME, data_varuid(data), &nd->u.scr.script->script_vars ); + push_val2(st->stack, C_NAME, reference_getuid(data), &nd->u.scr.script->script_vars ); return 0; } |