bpic now loads assets relative to the dat file provided

instead of assuming everything to be loaded is in the current working
directory

bpic/bpic.c

@@ -13,6 +13,29 @@
 
     unsigned    long    rTable[MAX_RBA+1];
 
+//=============================================================================
+// for dealing with paths
+//=============================================================================
+
+char dataPath[200] = "";
+char tempFilename[200] = "";
+
+void FindFilePaths(const char *dataFile) {
+    char *end;
+
+    if (dataFile) {
+        end = strrchr(dataFile, '\\');
+        if (end)
+            strncpy(dataPath, dataFile, ((end+1) - dataFile));
+    }
+}
+
+char* GetCombinedPath(const char *base, const char *file) {
+    strncpy(tempFilename, base, 200);
+    strncat(tempFilename, file, 200);
+    return tempFilename;
+}
+
 
 /****************************************************************************
 **                                     **
@@ -62,6 +85,8 @@ if (argc < 3)
     return(1);
     }
 
+FindFilePaths(argv[1]);
+
 xferbuf = malloc(64000);
 if (xferbuf == NULL)
     {
@@ -107,8 +132,8 @@ while (1)
     continue;
 
     printf("Processing....%s\n",dbuf);
-
-    InHandle = open(dbuf,O_RDWR|O_BINARY);
+    GetCombinedPath(dataPath, dbuf);
+    InHandle = open(tempFilename,O_RDWR|O_BINARY);
 
     if (InHandle < 1)
     {

bpic/makefile

@@ -1,5 +1,8 @@
 target_config = debug
 
+test_dat_file = ..\example\assets\example.dat
+test_out_file = pics.dtf
+
 target_name = bpic
 
 object_files = bpic.obj
@@ -41,9 +44,9 @@ clean : .SYMBOLIC
 
 .NOCHECK
 run : $(target_name).exe
-    $(target_name).exe
+    $(target_name).exe $(test_dat_file) $(test_out_file)
 
 .NOCHECK
 debug : $(target_name).exe
-    wd /swap /trap=rsi $(target_name).exe
+    wd /swap /trap=rsi $(target_name).exe $(test_dat_file) $(test_out_file)