mirrors
/
OpenTTD
mirror of https://github.com/OpenTTD/OpenTTD.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

(svn r27768) -Codechange: Use if and IsInsideMM instead of switch-case sequences to test for consecutive values.

This commit is contained in:
frosch 2017-03-05 14:44:15 +00:00
parent b5d1e58b0e
commit 5846aa5bfc
1 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
src/newgrf.cpp
View File

@ -550,24 +550,28 @@ static StringID TTDPStringIDToOTTDStringIDMapping(StringID str)
*/
StringID MapGRFStringID(uint32 grfid, StringID str)
{
/* 0xD0 and 0xDC stand for all the TextIDs in the range
* of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts).
* These strings are unique to each grf file, and thus require to be used with the
* grfid in which they are declared */
switch (GB(str, 8, 8)) {
case 0xD0: case 0xD1: case 0xD2: case 0xD3:
case 0xDC:
return GetGRFStringID(grfid, str);
case 0xD4: case 0xD5: case 0xD6: case 0xD7:
/* Strings embedded via 0x81 have 0x400 added to them (no real
* explanation why...) */
return GetGRFStringID(grfid, str - 0x400);
default: break;
if (IsInsideMM(str, 0xDC00, 0xDD00)) {
/* General text provided by NewGRF.
* In the specs this is called the 0xDCxx range (misc presistent texts).
* Note: We are not involved in the "persistent" business, since we do not store
* any NewGRF strings in savegames. */
return GetGRFStringID(grfid, str);
} else if (IsInsideMM(str, 0xD000, 0xD800)) {
/* Callback text provided by NewGRF.
* In the specs this is called the 0xD0xx range (misc graphics texts).
* These texts can be returned by various callbacks.
*
* Due to how TTDP implements the GRF-local- to global-textid translation
* texts included via 0x80 or 0x81 control codes have to add 0x400 to the textid.
* We do not care about that difference and just mask out the 0x400 bit.
*/
str &= ~0x400;
return GetGRFStringID(grfid, str);
} else {
/* The NewGRF wants to include/reference an original TTD string.
* Try our best to find an equivalent one. */
return TTDPStringIDToOTTDStringIDMapping(str);
}
return TTDPStringIDToOTTDStringIDMapping(str);
}
static std::map<uint32, uint32> _grf_id_overrides;
@ -5475,6 +5479,11 @@ static void FeatureNewName(ByteReader *buf)
break;
default:
if (IsInsideMM(id, 0xD000, 0xD400) || IsInsideMM(id, 0xDC00, 0xDD00)) {
AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED);
break;
}
switch (GB(id, 8, 8)) {
case 0xC4: // Station class name
if (_cur.grffile->stations == NULL || _cur.grffile->stations[GB(id, 0, 8)] == NULL) {
@ -5509,14 +5518,6 @@ static void FeatureNewName(ByteReader *buf)
}
break;
case 0xD0:
case 0xD1:
case 0xD2:
case 0xD3:
case 0xDC:
AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED);
break;
default:
grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
break;