From d6a454c5c39334fedd2d85c82bb7925cec8d515c Mon Sep 17 00:00:00 2001
From: Jaycie Ewald <jaycie.ewald@outlook.com>
Date: Wed, 13 Dec 2023 16:20:51 -0600
Subject: [PATCH] rt_ted.c: parse with cJSON to get map author
---
source/rt_ted.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++
source/rt_ted.h | 5 ++
2 files changed, 138 insertions(+)
diff --git a/source/rt_ted.c b/source/rt_ted.c
index 6dbf6df..8f25409 100644
--- a/source/rt_ted.c
+++ b/source/rt_ted.c
@@ -59,6 +59,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "rt_net.h"
#include "_rt_ted.h"
+#include "thirdp/cJSON.h"
+
//========================================
// GLOBAL VARIABLES
//========================================
@@ -76,6 +78,8 @@ str_clock Clocks[MAXCLOCKS];
int numclocks;
int LightsInArea[NUMAREAS + 1];
+char *mapinfo_json = NULL;
+
int maxheight;
int nominalheight;
int elevatorstart;
@@ -93,6 +97,8 @@ int lastlevelloaded = -1;
boolean insetupgame;
boolean ISRTL = false;
+boolean mapset_is_rxl = false;
+
unsigned MapSpecials = 0;
char LevelName[80];
@@ -1297,10 +1303,13 @@ void CheckRTLVersion(char *filename)
RXL_VERSION >> 8, RXL_VERSION & 0xff);
}
+ mapset_is_rxl = true;
close(filehandle);
return;
}
+ mapset_is_rxl = false;
+
if ((strcmp(RTLSignature, COMMBAT_SIGNATURE) != 0) &&
(strcmp(RTLSignature, NORMAL_SIGNATURE) != 0) &&
(strcmp(RTLSignature, RANDROTT_SIGNATURE) != 0))
@@ -1391,6 +1400,125 @@ size_t GetMapArrayOffset(int filehandle)
}
}
+/*
+======================
+=
+= GetMapInfoJSON
+=
+======================
+*/
+char *GetMapInfoJSON(int filehandle)
+{
+ char RTLSignature[4];
+ uint64_t ofs_info_headers;
+ uint64_t num_info_headers;
+ int i;
+ char info_header_magic[16];
+ uint64_t info_header_ofs;
+ uint64_t info_header_len;
+ int RTLVersion;
+
+ // load signature
+ lseek(filehandle, 0, SEEK_SET);
+ SafeRead(filehandle, RTLSignature, sizeof(RTLSignature));
+
+ // check if it's from RottEX
+ if (strcmp(RTLSignature, EXTENDED_SIGNATURE) == 0 ||
+ strcmp(RTLSignature, EXTENDED_COMMBAT_SIGNATURE) == 0)
+ {
+ // check version (it matters)
+ SafeRead(filehandle, &RTLVersion, sizeof(RTLVersion));
+
+ // seek to header location
+ lseek(filehandle, 8, SEEK_SET);
+
+ // read offset and num
+ SafeRead(filehandle, &ofs_info_headers, sizeof(ofs_info_headers));
+ SafeRead(filehandle, &num_info_headers, sizeof(num_info_headers));
+
+ // seek to headers
+ lseek(filehandle, ofs_info_headers, SEEK_SET);
+
+ // read info headers
+ for (i = 0; i < num_info_headers; i++)
+ {
+ // read header
+ SafeRead(filehandle, info_header_magic, sizeof(info_header_magic));
+ SafeRead(filehandle, &info_header_ofs, sizeof(info_header_ofs));
+ SafeRead(filehandle, &info_header_len, sizeof(info_header_len));
+
+ // MAPINFO info header contains offset to json data
+ if (strcmp(info_header_magic, "MAPINFO") == 0)
+ {
+ char *jsondata = SafeMalloc(info_header_len + 1);
+ lseek(filehandle, info_header_ofs, SEEK_SET);
+ SafeRead(filehandle, jsondata, info_header_len);
+ jsondata[info_header_ofs] = '\0';
+ return jsondata;
+ }
+ }
+
+ // fail
+ close(filehandle);
+ Error("GetMapArrayOffset: Couldn't find MAPSET or MAPS offset!");
+ return 0;
+ }
+ else
+ {
+ return NULL;
+ }
+}
+
+/*
+======================
+=
+= GetMapAuthor
+=
+======================
+*/
+char *GetMapAuthor(int mapnum)
+{
+ cJSON *root, *maps, *map;
+ char *ret = NULL;
+
+ if (mapinfo_json == NULL)
+ return ret;
+
+ /* parse mapinfo */
+ root = cJSON_Parse(mapinfo_json);
+ if (root == NULL)
+ return ret;
+
+ /* get maps array */
+ maps = cJSON_GetObjectItemCaseSensitive(root, "maps");
+ if (maps == NULL)
+ return ret;
+
+ /* iterate over maps */
+ map = maps->child;
+ while (map)
+ {
+ char *author;
+ int mapindex;
+
+ author = cJSON_GetStringValue(cJSON_GetObjectItemCaseSensitive(map, "author"));
+ mapindex = cJSON_GetNumberValue(cJSON_GetObjectItemCaseSensitive(map, "mapindex"));
+
+ if (mapnum == mapindex)
+ {
+ ret = M_StringDuplicate(author);
+ break;
+ }
+
+ map = map->next;
+ }
+
+ /* clean up */
+ cJSON_Delete(root);
+
+ return ret;
+}
+
/*
======================
=
@@ -1414,6 +1542,11 @@ void ReadROTTMap(char *filename, int mapnum)
CheckRTLVersion(filename);
filehandle = SafeOpenRead(filename);
mapsoffset = GetMapArrayOffset(filehandle);
+ if (mapinfo_json != NULL)
+ SafeFree(mapinfo_json);
+ mapinfo_json = GetMapInfoJSON(filehandle);
+
+ GetMapAuthor(0);
//
// Load map header
diff --git a/source/rt_ted.h b/source/rt_ted.h
index 535bb14..83e6495 100644
--- a/source/rt_ted.h
+++ b/source/rt_ted.h
@@ -142,6 +142,9 @@ extern boolean insetupgame;
extern char LevelName[80];
extern boolean ISRTL;
+extern boolean mapset_is_rxl;
+extern char *mapinfo_json;
+
extern char *ROTTMAPS;
extern char *BATTMAPS;
@@ -178,6 +181,8 @@ void GetMapInfo(mapfileinfo_t *mapinfo);
void GetMapFileName(char *filename);
void SetBattleMapFileName(char *filename);
word GetMapCRC(int num);
+char *GetMapInfoJSON(int filehandle);
+char *GetMapAuthor(int map);
int GetNextMap(int tilex, int tiley);
void Illuminate();