remove the funcpointer from struct spell.

src/helpers.c

@@ -23,6 +23,7 @@ without prior permission by the authors of Eressea.
 #include <util/parser.h>
 #include <util/resolve.h>
 
+#include <kernel/callbacks.h>
 #include <kernel/config.h>
 #include <kernel/callbacks.h>
 #include <kernel/equipment.h>
@@ -452,21 +453,16 @@ void register_tolua_helpers(void)
 
     callbacks.cast_spell = lua_callspell;
 
-    register_function((pf_generic)lua_initfamiliar,
-        TOLUA_CAST "lua_initfamiliar");
-    register_function((pf_generic)lua_getresource,
-        TOLUA_CAST "lua_getresource");
-    register_function((pf_generic)lua_changeresource,
-        TOLUA_CAST "lua_changeresource");
-    register_function((pf_generic)lua_equipmentcallback,
-        TOLUA_CAST "lua_equip");
+    register_function((pf_generic)lua_initfamiliar, "lua_initfamiliar");
+    register_function((pf_generic)lua_getresource, "lua_getresource");
+    register_function((pf_generic)lua_changeresource, "lua_changeresource");
+    register_function((pf_generic)lua_equipmentcallback, "lua_equip");
 
-    register_function((pf_generic)lua_wage, TOLUA_CAST "lua_wage");
-    register_function((pf_generic)lua_maintenance,
-        TOLUA_CAST "lua_maintenance");
+    register_function((pf_generic)lua_wage, "lua_wage");
+    register_function((pf_generic)lua_maintenance, "lua_maintenance");
 
     item_use_fun = use_item_lua;
     res_produce_fun = produce_resource_lua;
     res_limit_fun = limit_resource_lua;
-    register_item_give(lua_giveitem, TOLUA_CAST "lua_giveitem");
+    register_item_give(lua_giveitem, "lua_giveitem");
 }

src/helpers.h

@@ -15,6 +15,7 @@ extern "C" {
 #endif
 
     struct lua_State;
+
     void register_tolua_helpers(void);
 
 #ifdef __cplusplus

src/kernel/jsonconf.c

@@ -594,9 +594,6 @@ static void json_spells(cJSON *json) {
                 if (strcmp(item->string, "index") == 0) {
                     continue;
                 }
-                else if (strcmp(item->string, "cast") == 0) {
-                    sp->cast_fun = (spell_f)get_function(item->valuestring);
-                }
                 else if (strcmp(item->string, "syntax") == 0) {
                     sp->syntax = strdup(item->valuestring);
                 }

src/kernel/spell.c

@@ -33,7 +33,30 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <stdlib.h>
 #include <string.h>
 
-static critbit_tree cb_fumbles;
+
+static critbit_tree cb_spell_fun;
+void add_spellcast(const char *sname, spell_f fun)
+{
+    size_t len;
+    char data[64];
+
+    len = cb_new_kv(sname, strlen(sname), &fun, sizeof(fun), data);
+    assert(len <= sizeof(data));
+    cb_insert(&cb_spell_fun, data, len);
+}
+
+spell_f get_spellcast(const char *sname)
+{
+    void * match;
+    spell_f result = NULL;
+
+    if (cb_find_prefix(&cb_spell_fun, sname, strlen(sname) + 1, &match, 1, 0)) {
+        cb_get_kv(match, &result, sizeof(result));
+    }
+    return result;
+}
+
+static critbit_tree cb_fumble_fun;
 void add_fumble(const char *sname, fumble_f fun)
 {
     size_t len;
@@ -41,7 +64,7 @@ void add_fumble(const char *sname, fumble_f fun)
 
     len = cb_new_kv(sname, strlen(sname), &fun, sizeof(fun), data);
     assert(len <= sizeof(data));
-    cb_insert(&cb_fumbles, data, len);
+    cb_insert(&cb_fumble_fun, data, len);
 }
 
 fumble_f get_fumble(const char *sname)
@@ -49,7 +72,7 @@ fumble_f get_fumble(const char *sname)
     void * match;
     fumble_f result = NULL;
 
-    if (cb_find_prefix(&cb_fumbles, sname, strlen(sname) + 1, &match, 1, 0)) {
+    if (cb_find_prefix(&cb_fumble_fun, sname, strlen(sname) + 1, &match, 1, 0)) {
         cb_get_kv(match, &result, sizeof(result));
     }
     return result;
@@ -71,7 +94,8 @@ static void free_spell_cb(void *cbdata) {
 }
 
 void free_spells(void) {
-    cb_clear(&cb_fumbles);
+    cb_clear(&cb_fumble_fun);
+    cb_clear(&cb_spell_fun);
     cb_clear(&cb_spells);
     selist_foreach(spells, free_spell_cb);
     selist_free(spells);

src/kernel/spell.h

@@ -41,7 +41,6 @@ extern "C" {
         int sptyp;
         int rank;                   /* Reihenfolge der Zauber */
         struct spell_component *components;
-        spell_f cast_fun;
     } spell;
 
     typedef struct spellref {
@@ -52,6 +51,9 @@ extern "C" {
     void add_fumble(const char *sname, fumble_f fun);
     fumble_f get_fumble(const char *sname);
 
+    void add_spellcast(const char *sname, spell_f fun);
+    spell_f get_spellcast(const char *sname);
+
     struct spellref *spellref_create(struct spell *sp, const char *name);
     void spellref_free(struct spellref *spref);
     struct spell *spellref_get(struct spellref *spref);

src/kernel/xmlreader.c

@@ -279,11 +279,8 @@ parse_function(xmlNodePtr node, pf_generic * funPtr, xmlChar ** namePtr)
     xmlChar *propValue = xmlGetProp(node, BAD_CAST "value");
     assert(propValue != NULL);
     fun = get_function((const char *)propValue);
-    if (fun != NULL) {
     xmlFree(propValue);
-
     propValue = xmlGetProp(node, BAD_CAST "name");
-    }
     *namePtr = propValue;
     *funPtr = fun;
     return 0;
@@ -1311,7 +1308,6 @@ static int parse_spellbooks(xmlDocPtr doc)
 
 static int parse_spells(xmlDocPtr doc)
 {
-    pf_generic cast = 0;
     xmlXPathContextPtr xpath = xmlXPathNewContext(doc);
     xmlXPathObjectPtr spells;
 
@@ -1388,44 +1384,9 @@ static int parse_spells(xmlDocPtr doc)
                 sp->sptyp |= REGIONSPELL;
 
             k = xml_ivalue(node, "combat", 0);
-            if (k >= 0 && k <= 3)
+            if (k >= 0 && k <= 3) {
                 sp->sptyp |= modes[k];
-
-            /* reading eressea/spells/spell/function */
-
-            xpath->node = node;
-            result = xmlXPathEvalExpression(BAD_CAST "function", xpath);
-
-            if (result->nodesetval->nodeNr == 0) {
-                cast = get_function(sp->sname);
-                if (!cast) {
-                    log_info("no spell cast function registered for '%s'\n", sp->sname);
             }
-            }
-            else {
-                for (k = 0; k != result->nodesetval->nodeNr; ++k) {
-                    xmlNodePtr node = result->nodesetval->nodeTab[k];
-                    pf_generic fun;
-
-                    parse_function(node, &fun, &propValue);
-                    assert(propValue != NULL);
-                    if (strcmp((const char *)propValue, "cast") == 0) {
-                        if (fun) {
-                            cast = fun;
-                        }
-                        else {
-                            log_error("unknown function name '%s' for spell '%s'\n", (const char *)propValue, sp->sname);
-                        }
-                    }
-                    else {
-                        log_error("unknown function type '%s' for spell '%s'\n", (const char *)propValue, sp->sname);
-                    }
-                    xmlFree(propValue);
-                }
-            }
-            sp->cast_fun = (spell_f)cast;
-            xmlXPathFreeObject(result);
-
             /* reading eressea/spells/spell/resource */
             xpath->node = node;
             result = xmlXPathEvalExpression(BAD_CAST "resource", xpath);

src/magic.c

@@ -23,6 +23,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 #include "skill.h"
 #include "study.h"
+#include "helpers.h"
 #include "laws.h"
 
 #include <kernel/ally.h>
@@ -3009,12 +3010,9 @@ int cast_spell(struct castorder *co)
     const char *fname = co->sp->sname;
     const char *hashpos = strchr(fname, '#');
     char fbuf[64];
+    spell_f fun;
 
     const spell *sp = co->sp;
-    if (sp->cast_fun) {
-        return sp->cast_fun(co);
-    }
-
     if (hashpos != NULL) {
         ptrdiff_t len = hashpos - fname;
         assert(len < (ptrdiff_t) sizeof(fbuf));
@@ -3023,8 +3021,13 @@ int cast_spell(struct castorder *co)
         fname = fbuf;
     }
 
+    fun = get_spellcast(sp->sname);
+    if (!fun) {
+        log_warning("no spell function for %s, try callback", sp->sname);
         return callbacks.cast_spell(co, fname);
     }
+    return fun(co);
+}
 
 static critbit_tree cb_spellbooks;
 

src/magic.test.c

@@ -377,8 +377,8 @@ void test_multi_cast(CuTest *tc) {
     struct locale * lang;
 
     test_setup();
+    add_spellcast("fireball", cast_fireball);
     sp = create_spell("fireball", 0);
-    sp->cast_fun = cast_fireball;
     CuAssertPtrEquals(tc, sp, find_spell("fireball"));
 
     lang = test_create_locale();

src/spells.c

@@ -6615,12 +6615,10 @@ static spelldata spell_functions[] = {
 static void register_spelldata(void)
 {
     int i;
-    char zText[32];
-    strcpy(zText, "fumble_");
     for (i = 0; spell_functions[i].sname; ++i) {
         spelldata *data = spell_functions + i;
         if (data->cast) {
-            register_function((pf_generic)data->cast, data->sname);
+            add_spellcast(data->sname, data->cast);
         }
         if (data->fumble) {
             add_fumble(data->sname, data->fumble);
@@ -6733,11 +6731,14 @@ void register_spells(void)
     ct_register(&ct_firewall);
     ct_register(&ct_deathcloud);
 
-    register_function((pf_generic)sp_blessedharvest, "cast_blessedharvest");
-    register_function((pf_generic)sp_summon_familiar, "cast_familiar");
-    register_function((pf_generic)sp_babbler, "cast_babbler");
-    register_function((pf_generic)sp_readmind, "cast_readmind");
-    register_function((pf_generic)sp_kampfzauber, "combat_spell");
+    add_spellcast("blabbermouth", sp_babbler);
+    add_spellcast("summon_familiar", sp_summon_familiar);
+    add_spellcast("meteor_rain", sp_kampfzauber);
+    add_spellcast("fireball", sp_kampfzauber);
+    add_spellcast("hail", sp_kampfzauber);
+    add_spellcast("readmind", sp_readmind);
+    add_spellcast("blessedharvest", sp_blessedharvest);
+    add_spellcast("raindance", sp_blessedharvest);
 
     register_spelldata();