remove rtype->uget funpointer, and lua callbacks.

fix a missing lua_pop that trashed the heap.

res/core/resources/hp.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0"?>
 <resource name="hp" pooled="false">
   <function name="change" value="lua_changeresource"/>
-  <function name="get" value="lua_getresource"/>
 </resource>

res/core/resources/peasant.xml

@@ -1,5 +1,4 @@
 <?xml version="1.0"?>
 <resource name="peasant" pooled="false">
   <function name="change" value="lua_changeresource"/>
-  <function name="get" value="lua_getresource"/>
 </resource>

res/e3a/weapons.xml

@@ -4,13 +4,13 @@
   <xi:include href="config://core/weapons/catapult.xml"/>
   <xi:include href="config://core/weapons/mallornbow.xml"/>
   <xi:include href="config://core/weapons/mallornspear.xml"/>
-  <xi:include href="config://core/weapons/rep_crossbow.xml"/>
   <xi:include href="config://core/weapons/runesword.xml"/>
   <xi:include href="config://core/weapons/rustyaxe.xml"/>
   <xi:include href="config://core/weapons/rustysword.xml"/>
   <xi:include href="config://core/weapons/spear.xml"/>
   <xi:include href="config://core/weapons/sword.xml"/>
   <xi:include href="config://core/weapons/firesword.xml"/>
+  <xi:include href="config://game/weapons/rep_crossbow.xml"/>
   <xi:include href="config://game/weapons/lance.xml"/>
   <xi:include href="config://game/weapons/axe.xml"/>
   <xi:include href="config://game/weapons/crossbow.xml"/>

res/e3a/weapons/rep_crossbow.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<resource name="rep_crossbow">
+  <item weight="100" allow="dwarf halfling">
+    <construction skill="weaponsmithing" minskill="5">
+      <modifier function="mod_dwarves_only"/>
+      <requirement type="log" quantity="1"/>
+      <requirement type="iron" quantity="1"/>
+    </construction>
+    <weapon armorpiercing="true" pierce="true" missile="true" skill="crossbow" offmod="0" defmod="0" reload="1">
+      <damage type="rider" value="3d4+5"/>
+      <damage type="footman" value="3d4+5"/>
+      <modifier type="missile_target" value="0"/>
+    </weapon>
+  </item>
+</resource>

scripts/eressea/resources.lua

@@ -1,9 +1,5 @@
 -- global functions used in items.xml
 
-function peasant_getresource(u)
-  return u.region:get_resource("peasant")
-end
-
 function peasant_changeresource(u, delta)
   local p = u.region:get_resource("peasant")
   p = p + delta
@@ -14,10 +10,6 @@ function peasant_changeresource(u, delta)
   return p
 end
 
-function hp_getresource(u)
-  return u.hp
-end
-
 function hp_changeresource(u, delta)
   local hp = u.hp + delta
   

src/helpers.c

@@ -496,13 +496,13 @@ use_item_lua(unit *u, const item_type *itype, int amount, struct order *ord)
         }
         return result;
     }
+    lua_pop(L, 1);
     if (itype->rtype->ptype) {
         return use_potion(u, itype, amount, ord);
     } else {
         log_error("no such callout: %s", fname);
     }
     log_error("use(%s) calling '%s': not a function.\n", unitname(u), fname);
-    lua_pop(L, 1);
 
     return result;
 }

src/kernel/item.h

@@ -68,8 +68,6 @@ extern "C" {
 
     typedef int(*rtype_uchange) (struct unit * user,
         const struct resource_type * rtype, int delta);
-    typedef int(*rtype_uget) (const struct unit * user,
-        const struct resource_type * rtype);
     typedef char *(*rtype_name) (const struct resource_type * rtype, int flags);
     typedef struct resource_type {
         /* --- constants --- */
@@ -77,7 +75,6 @@ extern "C" {
         unsigned int flags;
         /* --- functions --- */
         rtype_uchange uchange;
-        rtype_uget uget;
         rtype_name name;
         struct rawmaterial_type *raw;
         struct resource_mod *modifiers;

src/kernel/pool.c

@@ -40,11 +40,11 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 int get_resource(const unit * u, const resource_type * rtype)
 {
     assert(rtype);
-    if (rtype->uget) {
-        /* this resource is probably special */
-        int i = rtype->uget(u, rtype);
-        if (i >= 0)
-            return i;
+    if (rtype == get_resourcetype(R_PEASANT)) {
+        return u->region->land ? u->region->land->peasants : 0;
+    }
+    else if (rtype == rt_find("hp")) {
+        return u->hp;
     }
     else if (rtype->uchange) {
         /* this resource is probably special */
@@ -176,7 +176,7 @@ int count)
     }
     if (rtype->flags & RTF_POOLED && mode & ~(GET_SLACK | GET_RESERVE)) {
         for (v = r->units; v && use < count; v = v->next)
-            if (u != v && (v->items || rtype->uget)) {
+            if (u != v) {
                 int mask;
 
                 if ((u_race(v)->ec_flags & ECF_KEEP_ITEM))
@@ -234,8 +234,6 @@ use_pooled(unit * u, const resource_type * rtype, unsigned int mode, int count)
                 int mask;
                 if ((u_race(v)->ec_flags & ECF_KEEP_ITEM))
                     continue;
-                if (v->items == NULL && rtype->uget == NULL)
-                    continue;
 
                 if (v->faction == f) {
                     mask = (mode >> 3) & (GET_SLACK | GET_RESERVE);

src/kernel/region.c

@@ -38,6 +38,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include "unit.h"
 
 /* util includes */
+#include <util/assert.h>
 #include <util/attrib.h>
 #include <util/bsdstring.h>
 #include <util/gamedata.h>
@@ -697,6 +698,7 @@ void r_setdemand(region * r, const luxury_type * ltype, int value)
     d = *dp;
     if (!d) {
         d = *dp = malloc(sizeof(struct demand));
+        assert_alloc(d);
         d->next = NULL;
         d->type = ltype;
     }
@@ -768,6 +770,7 @@ region *new_region(int x, int y, struct plane *pl, int uid)
         return r;
     }
     r = calloc(1, sizeof(region));
+    assert_alloc(r);
     r->x = x;
     r->y = y;
     r->uid = uid;

src/kernel/save.c

@@ -52,6 +52,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <triggers/timeout.h>
 
 /* util includes */
+#include <util/assert.h>
 #include <util/attrib.h>
 #include <util/base36.h>
 #include <util/bsdstring.h>
@@ -646,6 +647,7 @@ unit *read_unit(struct gamedata *data)
     }
     else {
         u = calloc(sizeof(unit), 1);
+        assert_alloc(u);
         u->no = n;
         uhash(u);
     }

src/kernel/xmlreader.c

@@ -972,9 +972,6 @@ static int parse_resources(xmlDocPtr doc)
                 if (strcmp((const char *)propValue, "change") == 0) {
                     rtype->uchange = (rtype_uchange)fun;
                 }
-                else if (strcmp((const char *)propValue, "get") == 0) {
-                    rtype->uget = (rtype_uget)fun;
-                }
                 else if (strcmp((const char *)propValue, "name") == 0) {
                     rtype->name = (rtype_name)fun;
                 }