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.

1 files changed, 0 insertions, 33 deletions

diff --git a/src/scripting/scriptmanager.cpp b/src/scripting/scriptmanager.cpp
index c133a5e2..76c4dae9 100644
--- a/src/scripting/scriptmanager.cpp
+++ b/src/scripting/scriptmanager.cpp
@@ -51,39 +51,6 @@ Script *ScriptManager::currentState()
     return _currentState;
 }
 
-// TODO: Have some generic event mechanism rather than calling global functions
-
-void ScriptManager::addDataToSpecial(int id, Special *special)
-{
-    /* currently only gets the recharge cost.
-      TODO: get any other info in a similar way, but
-            first we have to agree on what other
-            info we actually want to provide.
-    */
-    if (special && _getSpecialRechargeCostCallback.isValid())
-    {
-        _currentState->prepare(_getSpecialRechargeCostCallback);
-        _currentState->push(id);
-        int scriptReturn = _currentState->execute();
-        special->neededMana = scriptReturn;
-    }
-}
-
-bool ScriptManager::performSpecialAction(int specialId, Being *caster)
-{
-    if (!_specialCallback.isValid())
-    {
-        LOG_WARN("No callback for specials set! Specials disabled.");
-        return false;
-    }
-
-    _currentState->prepare(_specialCallback);
-    _currentState->push(caster);
-    _currentState->push(specialId);
-    _currentState->execute();
-    return true;
-}
-
 bool ScriptManager::performCraft(Being *crafter,
                                  const std::list<InventoryItem> &recipe)
 {