read callback fucntions for resources and weapons.

src/exparse.c

@@ -8,6 +8,7 @@
 #include "kernel/race.h"
 #include "kernel/resources.h"
 
+#include "util/functions.h"
 #include "util/log.h"
 #include "util/strings.h"
 
@@ -250,7 +251,35 @@ static void XMLCALL start_resources(userdata *ud, const XML_Char *el, const XML_
             handle_item(ud, el, attr);
         }
         else if (xml_strcmp(el, "function") == 0) {
+            const XML_Char *name = NULL;
+            pf_generic fun = NULL;
+            int i;
+
+            for (i = 0; attr[i]; i += 2) {
+                if (xml_strcmp(attr[i], "name") == 0) {
+                    name = attr[i + 1];
+                }
+                else if (xml_strcmp(attr[i], "value") == 0) {
+                    fun = get_function((const char *)attr[i + 1]);
+                }
+                else {
+                    handle_bad_input(ud, el, attr[i]);
+                }
+            }
+
             assert(rtype);
+            if (name && fun) {
+                if (xml_strcmp(name, "change") == 0) {
+                    rtype->uchange = (rtype_uchange)fun;
+                }
+                else if (xml_strcmp(name, "name") == 0) {
+                    rtype->name = (rtype_name)fun;
+                }
+                else if (xml_strcmp(name, "attack") == 0) {
+                    assert(rtype->wtype);
+                    rtype->wtype->attack = (wtype_attack)fun;
+                }
+            }
             ++ud->errors;
             /* TODO */
         }

src/kernel/item.h

@@ -40,6 +40,7 @@ extern "C" {
     struct gamedata;
     struct rawmaterial_type;
     struct resource_mod;
+    struct weapon_type;
 
     typedef struct item {
         struct item *next;
@@ -66,9 +67,12 @@ extern "C" {
 
     void item_done(void);
 
+    typedef bool(*wtype_attack)(const struct troop *,
+        const struct weapon_type *, int *);
     typedef int(*rtype_uchange) (struct unit * user,
         const struct resource_type * rtype, int delta);
     typedef char *(*rtype_name) (const struct resource_type * rtype, int flags);
+
     typedef struct resource_type {
         /* --- constants --- */
         char *_name;             /* wie es hei<65>t */

src/xmlreader.c

@@ -654,9 +654,7 @@ static weapon_type *xml_readweapon(xmlXPathContextPtr xpath, item_type * itype)
         }
         assert(propValue != NULL);
         if (strcmp((const char *)propValue, "attack") == 0) {
-            wtype->attack =
-                (bool(*)(const struct troop *, const struct weapon_type *,
-                int *))fun;
+            wtype->attack = (wtype_attack)fun;
         }
         else {
             log_error("unknown function type '%s' for item '%s'\n", (const char *)propValue, itype->rtype->_name);