4 files changed, 104 insertions, 17 deletions

diff --git a/src/core/info.cc b/src/core/info.cc
index c331d91..16e68f5 100644
--- a/src/core/info.cc
+++ b/src/core/info.cc
@@ -67,6 +67,7 @@ Info::Info(const InfoType *type, const char *label) : Label(label)
 	info_model = 0;
 	info_timestamp = 0;
 	info_price = 0;
+	info_volume = 0;
 }
 
 // client-side constructor, id is passed as param
@@ -124,6 +125,10 @@ void Info::set_price(const long price)
 	info_price = price;
 }
 
+void Info::set_volume(const float volume)
+{
+	info_volume = volume;
+}
 void Info::set_timestamp(const unsigned long timestamp)
 {
 	info_timestamp = timestamp;
diff --git a/src/core/info.h b/src/core/info.h
index 4b9c445..b3fa58f 100644
--- a/src/core/info.h
+++ b/src/core/info.h
@@ -95,6 +95,10 @@ public:
 	inline const long price() const {
 		return info_price;
 	}
+	
+	inline const float volume() const {
+		return info_volume;
+	}
 
 	/**
 	 * @brief timestamp
@@ -107,7 +111,9 @@ public:
 		return info_timestamp;
 	}
 
-	/// text description
+	/**
+	 * @brief text description
+	 */
 	inline const Text & text() const {
 		return info_text;
 	}
@@ -122,8 +128,16 @@ public:
 	
 	void set_model(const model::Model *model);
 
+	/**
+	 * @brief associated price, in credits
+	 */
 	void set_price(const long price);
 
+	/**
+	 * @brief associated volume, in cubic meters
+	 */	
+	void set_volume(const float volume);
+
 	/// set the timestamp
 	void set_timestamp(const unsigned long timestamp);
 
@@ -159,6 +173,7 @@ private:
 	unsigned int		info_id;
 	
 	long			info_price;
+	float			info_volume;
 	unsigned long		info_timestamp;
 	std::string		info_modelname;
 
diff --git a/src/core/inventory.cc b/src/core/inventory.cc
index c659178..8f8c41a 100644
--- a/src/core/inventory.cc
+++ b/src/core/inventory.cc
@@ -13,15 +13,24 @@ namespace core
 
 /* ---- class Inventory -------------------------------------------- */
 
-Inventory::Inventory()
+Inventory::Inventory(const float capacity)
 {
 	inventory_timestamp = 0;
+	inventory_capacity = capacity;
+	inventory_capacity_used = 0;
 }
 
 Inventory::~Inventory()
 {
 	clear();
 	inventory_timestamp = 0;
+	inventory_capacity = 0;
+	inventory_capacity_used = 0;
+}
+
+void Inventory::set_capacity(const float capacity)
+{
+	inventory_capacity = capacity;
 }
 
 void Inventory::set_timestamp(const unsigned long timestamp)
@@ -31,6 +40,7 @@ void Inventory::set_timestamp(const unsigned long timestamp)
 
 void Inventory::set_dirty()
 {
+	recalculate();
 	inventory_timestamp = core::game()->timestamp();
 }
 
@@ -75,6 +85,16 @@ void Inventory::clear()
 		delete item;
 	}
 	inventory_items.clear();
+	inventory_capacity_used = 0;
+}
+
+void Inventory::recalculate()
+{
+	inventory_capacity_used = 0;
+	for (Items::const_iterator it = inventory_items.begin(); it != inventory_items.end(); it++) {
+		const Item *item = (*it);
+		inventory_capacity_used += item->amount() * item->info()->volume();
+	}
 }
 
 } // namespace core
diff --git a/src/core/inventory.h b/src/core/inventory.h
index 0a412b0..aff9790 100644
--- a/src/core/inventory.h
+++ b/src/core/inventory.h
@@ -21,20 +21,59 @@ class Inventory
 {
 public:
 	/**
-	 * @brief type definition for the items in the inventory
+	 * @brief type definition for items in the inventory
 	 */
 	typedef std::vector<Item *> Items;
 	
 	/**
 	 * @brief default constructor
 	 */
-	Inventory();
+	Inventory(const float capacity = 0);
 	
 	/**
 	 * @brief default destructor
 	 */
 	~Inventory();
 	
+	/* ---- inspectors ------------------------------------------------- */
+	
+	/**
+	 * @brief items in the inventory
+	 */
+	inline Items &items() {
+		 return inventory_items;
+	};
+
+	/**
+	 * @brief return the timestamp
+	 */
+	inline const unsigned long timestamp() const {
+		return inventory_timestamp;
+	}
+	
+	/**
+	 * @brief return the maximal inventory capacity, in cubic meters
+	 */
+	inline const float capacity() const {
+		return inventory_capacity;
+	}
+	
+	/**
+	 * @brief return the used inventory capacity, in cubic meters
+	 */
+	inline const float capacity_used() const {
+		return inventory_capacity_used;
+	}
+
+	/**
+	 * @brief return the availableinventory capacity, in cubic meters
+	 */
+	inline const float capacity_available() const {
+		return inventory_capacity - inventory_capacity_used;
+	}
+	
+	/* ---- mutators --------------------------------------------------- */
+	
 	/**
 	 * @brief add an item to the inventory
 	 */
@@ -54,32 +93,40 @@ public:
 	  * @brief search the inventory for a specific item type
 	  */
 	 Item *find(const Info *info);
-	 
-	inline Items &items() {
-		 return inventory_items;
-	};
-
-	/**
-	 * @brief return the timestamp
-	 */
-	inline const unsigned long timestamp() const {
-		return inventory_timestamp;
-	}
-	
+	 	
 	/**
 	 * @brief set the timestamp
 	 */
 	 void set_timestamp(const unsigned long timestamp);
 	 
 	/**
-	 * @brief set the timestamp to the current game time
+	 * @brief mark the inventory as dirty
+	 * This method will set the timestamp to the current game time
+	 * and will recalculate the available capacity
+	 * @see recalculate()
 	 */	 
 	 void set_dirty();
 	 
+	 /**
+	 * @brief set the maximal inventory capacity, in cubic meters
+	 */
+	 void set_capacity(const float capacity);
+
 private:
+	// recalculate inventory capacity
+	void recalculate();
+
+	// items in the inventory
 	Items			inventory_items;
+	
 	// timestamp when inventory was last updated
 	unsigned long 		inventory_timestamp;
+	
+	// maximum inventory capacity, in cubic meters
+	float			inventory_capacity;
+	
+	// current capacity used, in cubic meters
+	float			inventory_capacity_used;
 };
 
 } // namsepace core