Enhanced special support

- Made the current charge being saved.
- Added script binds:
  - chr_set_special_recharge_speed
  - chr_get_special_recharge_speed
  - chr_set_special_mana
  - chr_get_special_mana
  - get_special_info
- Added special info lua class. Functions:
  - name
  - needed_mana
  - rechargeable
  - on_use
  - on_recharged
  - category

Further the engine no longer sets charge to 0 after using of specials
this allows more flexbilillity (like failing specials).

Changes on the xml database:
- recharge renamed to rechargeable (needed by client and server)
- needed - the needed mana to trigger a special (server only)
- rechargespeed - the defailt recharge speed in mana per tick (server only)
- target - the type of target (either being or point) (server and client)

I also made the lua engine pushing nil instead of a 0 light userdata when
the pointer was 0.

Database update needed.

Change is tested.

Mana-Mantis: #167, #156

Reviewed-by: bjorn.

3 files changed, 47 insertions, 15 deletions

diff --git a/src/account-server/character.cpp b/src/account-server/character.cpp
index 535ee67..3219e3c 100644
--- a/src/account-server/character.cpp
+++ b/src/account-server/character.cpp
@@ -45,3 +45,11 @@ void Character::setAccount(Account *acc)
     mAccountID = acc->getID();
     mAccountLevel = acc->getLevel();
 }
+
+void Character::giveSpecial(int id, int currentMana)
+{
+    if (mSpecials.find(id) == mSpecials.end())
+    {
+        mSpecials[id] = SpecialValue(currentMana);
+    }
+}
diff --git a/src/account-server/character.h b/src/account-server/character.h
index 74fe923..5e6bd3b 100644
--- a/src/account-server/character.h
+++ b/src/account-server/character.h
@@ -49,13 +49,28 @@ struct AttributeValue
     double modified; /**< Value after various modifiers have been applied. */
 };
 
+struct SpecialValue
+{
+    SpecialValue()
+        : currentMana(0)
+    {}
+
+    SpecialValue(unsigned int currentMana)
+        : currentMana(currentMana)
+    {}
+
+    unsigned int currentMana;
+};
+
 /**
  * Stores attributes by their id.
  */
-typedef std::map< unsigned int, AttributeValue > AttributeMap;
+typedef std::map<unsigned int, AttributeValue> AttributeMap;
 
-/** placeholder type needed for include compatibility with game server*/
-typedef void Special;
+/**
+ * Stores specials by their id.
+ */
+typedef std::map<unsigned int, SpecialValue> SpecialMap;
 
 class Character
 {
@@ -193,17 +208,17 @@ class Character
         int getSpecialSize() const
         { return mSpecials.size(); }
 
-        const std::map<int, Special*>::const_iterator getSpecialBegin() const
+        SpecialMap::const_iterator getSpecialBegin() const
         { return mSpecials.begin(); }
 
-        const std::map<int, Special*>::const_iterator getSpecialEnd() const
+        SpecialMap::const_iterator getSpecialEnd() const
         { return mSpecials.end(); }
 
+
         void clearSpecials()
         { mSpecials.clear(); }
 
-        void giveSpecial(int id)
-        { mSpecials[id] = NULL; }
+        void giveSpecial(int id, int currentMana);
 
         /**
          * Gets the Id of the map that the character is on.
@@ -270,7 +285,7 @@ class Character
         std::map<int, int> mExperience; //!< Skill Experience.
         std::map<int, int> mStatusEffects; //!< Status Effects
         std::map<int, int> mKillCount; //!< Kill Count
-        std::map<int, Special*>  mSpecials;
+        SpecialMap  mSpecials;
         unsigned short mMapId;    //!< Map the being is on.
         unsigned char mGender;    //!< Gender of the being.
         unsigned char mHairStyle; //!< Hair style of the being.
diff --git a/src/account-server/storage.cpp b/src/account-server/storage.cpp
index 9a19a67..8876cd4 100644
--- a/src/account-server/storage.cpp
+++ b/src/account-server/storage.cpp
@@ -24,6 +24,7 @@
 #include "account-server/storage.h"
 
 #include "account-server/account.h"
+#include "account-server/character.h"
 #include "account-server/flooritem.h"
 #include "chat-server/chatchannel.h"
 #include "chat-server/guild.h"
@@ -483,14 +484,18 @@ Character *Storage::getCharacterBySQL(Account *owner)
         // Load the special status
         s.clear();
         s.str("");
-        s << "select special_id FROM " << CHAR_SPECIALS_TBL_NAME
+        s << "SELECT special_id, special_current_mana FROM "
+          << CHAR_SPECIALS_TBL_NAME
           << " WHERE char_id = " << character->getDatabaseID();
         const dal::RecordSet &specialsInfo = mDb->execSql(s.str());
         if (!specialsInfo.isEmpty())
         {
             const unsigned int nRows = specialsInfo.rows();
             for (unsigned int row = 0; row < nRows; row++)
-                character->giveSpecial(toUint(specialsInfo(row, 0)));
+            {
+                character->giveSpecial(toUint(specialsInfo(row, 0)),
+                                       toUint(specialsInfo(row, 1)));
+            }
         }
     }
     catch (const dal::DbSqlQueryExecFailure &e)
@@ -777,15 +782,19 @@ bool Storage::updateCharacter(Character *character)
                     << character->getDatabaseID() << "';";
         mDb->execSql(deleteSql.str());
         // In with the new
-        std::map<int, Special*>::const_iterator special_it;
-        for (special_it = character->getSpecialBegin();
-             special_it != character->getSpecialEnd(); special_it++)
+        SpecialMap::const_iterator special_it, special_it_end;
+        for (special_it = character->getSpecialBegin(),
+             special_it_end = character->getSpecialEnd();
+             special_it != special_it_end; ++special_it)
         {
             insertSql.str("");
             insertSql   << "INSERT INTO " << CHAR_SPECIALS_TBL_NAME
-                        << " (char_id, special_id) VALUES ("
+                        << " (char_id, special_id, special_current_mana)"
+                        << " VALUES ("
                         << " '" << character->getDatabaseID() << "',"
-                        << " '" << special_it->first << "');";
+                        << " '" << special_it->first << "',"
+                        << " '" << special_it->second.currentMana
+                        << "');";
             mDb->execSql(insertSql.str());
         }
     }