petern/OpenTTD
1
0
Fork 0
forked from mirror/OpenTTD
Code Pull Requests Activity

(svn r20251) -Add: [NewGRF] allow grfs to specify the number of valid parameters

Browse Source
This commit is contained in:
yexo
2010-07-31 09:35:49 +00:00
parent 897818c198
commit 75c4a2d2fb
3 changed files with 17 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/newgrf.cpp
View File

@@ -5919,6 +5919,18 @@ static bool ChangeGRFDescription(byte langid, const char *str)
return true;
}
/** Callback function for 'INFO'->'NPAR' to set the number of valid parameters. */
static bool ChangeGRFNumUsedParams(size_t len, ByteReader *buf)
{
if (len != 1) {
grfmsg(2, "StaticGRFInfo: expected only 1 byte for 'INFO'->'NPAR' but got " PRINTF_SIZE ", ignoring this field", len);
buf->Skip(len);
} else {
_cur_grfconfig->num_valid_params = min(buf->ReadByte(), lengthof(_cur_grfconfig->param));
}
return true;
}
typedef bool (*DataHandler)(size_t, ByteReader *); ///< Type of callback function for binary nodes
typedef bool (*TextHandler)(byte, const char *str); ///< Type of callback function for text nodes
typedef bool (*BranchHandler)(ByteReader *); ///< Type of callback function for branch nodes
@@ -6005,6 +6017,7 @@ struct AllowedSubtags {
AllowedSubtags _tags_info[] = {
AllowedSubtags('NAME', ChangeGRFName),
AllowedSubtags('DESC', ChangeGRFDescription),
AllowedSubtags('NPAR', ChangeGRFNumUsedParams),
AllowedSubtags()
};