1 files changed, 90 insertions, 0 deletions
diff --git a/src/doom/deh_mapping.h b/src/doom/deh_mapping.h
new file mode 100644
index 00000000..4862dec9
--- /dev/null
+++ b/src/doom/deh_mapping.h
@@ -0,0 +1,90 @@
+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 2005 Simon Howard
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+//-----------------------------------------------------------------------------
+//
+// Dehacked "mapping" code
+// Allows the fields in structures to be mapped out and accessed by
+// name
+//
+//-----------------------------------------------------------------------------
+
+#ifndef DEH_MAPPING_H
+#define DEH_MAPPING_H
+
+#include "doomtype.h"
+#include "deh_io.h"
+#include "md5.h"
+
+#define DEH_BEGIN_MAPPING(mapping_name, structname)           \
+    static structname deh_mapping_base;                       \
+    static deh_mapping_t mapping_name =                       \
+    {                                                         \
+        &deh_mapping_base,                                    \
+        {
+
+#define DEH_MAPPING(deh_name, fieldname)                      \
+             {deh_name, &deh_mapping_base.fieldname,          \
+                 sizeof(deh_mapping_base.fieldname)},
+
+#define DEH_UNSUPPORTED_MAPPING(deh_name)                     \
+             {deh_name, NULL, -1},
+            
+#define DEH_END_MAPPING                                       \
+             {NULL, NULL, -1}                                 \
+        }                                                     \
+    };
+
+    
+
+#define MAX_MAPPING_ENTRIES 32
+
+typedef struct deh_mapping_s deh_mapping_t;
+typedef struct deh_mapping_entry_s deh_mapping_entry_t;
+
+struct deh_mapping_entry_s 
+{
+    // field name
+   
+    char *name;
+
+    // location relative to the base in the deh_mapping_t struct
+    // If this is NULL, it is an unsupported mapping
+
+    void *location;
+
+    // field size
+
+    int size;
+};
+
+struct deh_mapping_s
+{
+    void *base;
+    deh_mapping_entry_t entries[MAX_MAPPING_ENTRIES];
+};
+
+boolean DEH_SetMapping(deh_context_t *context, deh_mapping_t *mapping, 
+                       void *structptr, char *name, int value);
+void DEH_StructMD5Sum(md5_context_t *context, deh_mapping_t *mapping,
+                      void *structptr);
+
+#endif /* #ifndef DEH_MAPPING_H */
+