Moved fighting code into a component

All damage dealing is now handeled via CombatComponent.
Monsters use a derived MonsterCombatComponent since they can have a damage
mutation and have a seperate script callback.

The wirering with Being is still not optional since most of the stuff does
not exist as components.

Things done:
 - Seperated the fighting code from Being and only let Characters and Monsters
   add the Component (less overhead for npcs)
 - Added a getter for Attribute values to prevent searching it all the time in
   non Being members
 - Fixed the type if the damage mutation to double (no idea why it was int)
   I did not want to copy it over incorrectly
 - Removed the addAttack/removeAttack overrides in Character and made the
   knuckleAttack being added based on newly added signals

Future TODOS:
 - Remove depedency on Being as soon all needed dependencies are available
   as components of Entity
 - Move the monster script callback into the general combatcomponent and
   make it usuable for characters too

1 files changed, 144 insertions, 0 deletions

diff --git a/src/game-server/combatcomponent.h b/src/game-server/combatcomponent.h
new file mode 100644
index 00000000..033b543d
--- /dev/null
+++ b/src/game-server/combatcomponent.h
@@ -0,0 +1,144 @@
+/*
+ *  The Mana Server
+ *  Copyright (C) 2013 The Mana Developers
+ *
+ *  This file is part of The Mana Server.
+ *
+ *  The Mana Server is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  The Mana Server is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with The Mana Server.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef COMBATCOMPONENT_H
+#define COMBATCOMPONENT_H
+
+#include "component.h"
+
+#include <vector>
+
+#include <sigc++/trackable.h>
+
+#include "game-server/attack.h"
+
+class Actor;
+class Being;
+
+/**
+ * Type definition for a list of hits
+ */
+typedef std::vector<unsigned> Hits;
+
+class CombatComponent: public Component, public sigc::trackable
+{
+public:
+    static const ComponentType type = CT_Fighting;
+
+    CombatComponent(Being &being);
+    virtual ~CombatComponent();
+
+    void update(Entity &entity);
+
+    void addAttack(AttackInfo *attack);
+    void removeAttack(AttackInfo *attackInfo);
+    Attacks &getAttacks();
+
+    const Hits &getHitsTaken() const;
+    void clearHitsTaken();
+
+    int performAttack(Being &source, const Damage &dmg);
+    virtual int damage(Being &target, Being *source, const Damage &damage);
+
+    int getAttackId() const;
+
+    Being *getTarget() const;
+    void setTarget(Being *target);
+    void clearTarget();
+
+    void diedOrRemoved(Entity *entity);
+
+    sigc::signal<void, Being *, const Damage &, int> signal_damaged;
+
+protected:
+    virtual void processAttack(Being &source, Attack &attack);
+
+    Being *mTarget;
+    Attacks mAttacks;
+    Attack *mCurrentAttack;     // Last used attack
+    Hits mHitsTaken;            //List of punches taken since last update.
+
+};
+
+inline Attacks &CombatComponent::getAttacks()
+{
+    return mAttacks;
+}
+
+/**
+ * Gets the damage list.
+ */
+inline const Hits &CombatComponent::getHitsTaken() const
+{
+    return mHitsTaken;
+}
+
+/**
+ * Clears the damage list.
+ */
+inline void CombatComponent::clearHitsTaken()
+{
+    mHitsTaken.clear();
+}
+
+/**
+ * Gets the attack id the being is currently performing.
+ * For being, this is defaulted to the first one (1).
+ */
+inline int CombatComponent::getAttackId() const
+{
+    return mCurrentAttack ?
+            mCurrentAttack->getAttackInfo()->getDamage().id : 0;
+}
+
+/**
+ * Get Target
+ */
+inline Being *CombatComponent::getTarget() const
+{
+    return mTarget;
+}
+
+/**
+ * Set Target
+ */
+inline void CombatComponent::setTarget(Being *target)
+{
+    mTarget = target;
+}
+
+/**
+ * Clears the target
+ */
+inline void CombatComponent::clearTarget()
+{
+    mTarget = 0;
+}
+
+/**
+ * Handler for the died and removed event of the targeting being
+ * @param entity The removed/died being (not used here)
+ */
+inline void CombatComponent::diedOrRemoved(Entity *entity)
+{
+    clearTarget();
+}
+
+#endif // COMBATCOMPONENT_H