5 files changed, 61 insertions, 1 deletions
diff --git a/src/emap/craft.c b/src/emap/craft.c
index 331d415..5e0abe3 100644
--- a/src/emap/craft.c
+++ b/src/emap/craft.c
@@ -189,7 +189,8 @@ struct craft_vardata *craft_str_to_craft(const char *craftstr)
                 index = atoi(itemstr);
                 amount = 1;
             }
-            if (index < 0 || index >= MAX_INVENTORY)
+            if (index < 0 ||
+                index >= MAX_INVENTORY)
             {   // wrong item index
                 strutil_free(slotdata);
                 strutil_free(craftdata);
@@ -300,3 +301,51 @@ struct craft_slot *craft_get_slot(const int id, const int slot)
     }
     return &craft->slots[slot];
 }
+
+bool craft_validate(TBL_PC *sd, const int id)
+{
+    struct craft_vardata *craft = idb_get(craftvar_db, id);
+    if (!craft)
+    {
+        ShowError("Craft object with id %d not exists.\n", id);
+        return false;
+    }
+    int amounts[MAX_INVENTORY];
+    int f;
+
+    for (f = 0; f < MAX_INVENTORY; f ++)
+        amounts[f] = 0;
+
+    int index;
+    for (index = 0; index < craft_inventory_size; index ++)
+    {
+        struct craft_slot *crslot = &craft->slots[index];
+        const int len = VECTOR_LENGTH(crslot->items);
+        int slot;
+        for (slot = 0; slot < len; slot ++)
+        {
+            struct item_pair *pair = &VECTOR_INDEX(crslot->items, slot);
+            const int invIndex = pair->index;
+            if (invIndex < 0 ||
+                invIndex >= MAX_INVENTORY ||
+                !sd->status.inventory[invIndex].nameid ||
+                !sd->status.inventory[invIndex].amount)
+            {
+                return false;
+            }
+            amounts[invIndex] += pair->amount;
+        }
+    }
+    for (f = 0; f < MAX_INVENTORY; f ++)
+    {
+        const int amount = amounts[f];
+        if (!amount)
+            continue;
+        if(sd->status.inventory[f].nameid == 0 ||
+           sd->status.inventory[f].amount < amount)
+        {
+            return false;
+        }
+    }
+    return true;
+}
diff --git a/src/emap/craft.h b/src/emap/craft.h
index 8c63546..6d92bad 100644
--- a/src/emap/craft.h
+++ b/src/emap/craft.h
@@ -34,5 +34,6 @@ struct craft_vardata *craft_str_to_craft(const char *craftstr);
 void craft_dump(TBL_PC *sd, const int id);
 void craft_delete(const int id);
 struct craft_slot *craft_get_slot(const int id, const int slot);
+bool craft_validate(TBL_PC *sd, const int id);
 
 #endif  // EVOL_MAP_CRAFT
diff --git a/src/emap/init.c b/src/emap/init.c
index b71ac37..7479a36 100644
--- a/src/emap/init.c
+++ b/src/emap/init.c
@@ -105,6 +105,7 @@ HPExport void plugin_init (void)
     addScriptCommand("deletecraft", "i", deleteCraft);
     addScriptCommand("getcraftslotid", "ii", getCraftSlotId);
     addScriptCommand("getcraftslotamount", "ii", getCraftSlotAmount);
+    addScriptCommand("validatecraft", "i", validateCraft);
     addScriptCommand("getq", "i", getq);
     addScriptCommand("setq", "ii", setq);
     addScriptCommand("setnpcdir", "*", setNpcDir);
diff --git a/src/emap/script.c b/src/emap/script.c
index 0a63090..a34d58c 100644
--- a/src/emap/script.c
+++ b/src/emap/script.c
@@ -1952,3 +1952,11 @@ BUILDIN(getCraftSlotAmount)
     }
     return true;
 }
+
+BUILDIN(validateCraft)
+{
+    getSD()
+    const bool valid = craft_validate(sd, script_getnum(st, 2));
+    script_pushint(st, valid ? 1 : 0);
+    return true;
+}
diff --git a/src/emap/script.h b/src/emap/script.h
index c433baf..87592fe 100644
--- a/src/emap/script.h
+++ b/src/emap/script.h
@@ -70,5 +70,6 @@ BUILDIN(dumpCraft);
 BUILDIN(deleteCraft);
 BUILDIN(getCraftSlotId);
 BUILDIN(getCraftSlotAmount);
+BUILDIN(validateCraft);
 
 #endif  // EVOL_MAP_SCRIPT