/*!
    \file command_node.h
    \brief Parses keyboard, mouse and remote input
    
    Contains methods to parse remote and local input and handles sending of input to remote CommandNodes
*/

#ifndef COMMAND_NODE_H
#define COMMAND_NODE_H

#include "stdincl.h"

class WorldEntity;

#define N_STD_KEYS SDLK_LAST
#define N_BUTTONS 6
#define DEFAULT_KEYBIND_FILE "default.ini"

//! Key aliasing structure
/**
	This structure contains the key aliasing information, e.g. the command strings that
	have been bound to the keys.
*/
typedef struct
{
	char keys[N_STD_KEYS][CMD_LENGHT];
	char buttons[N_BUTTONS][CMD_LENGHT];
} KeyBindings;

//! Command Node
/**
	This class gathers all incoming SDL_Events and processes them. Keyboard, mouse and joystick input is
	captured and translated into command messages which are passed down to the bound WorldEntities (via WorldEntity::command()).
	Other SDL_Events are passed to Orxonox::event_handler() to deal with them. If the CommandNode has been created
	with bLocalInput set to false, it will query the network class for incoming commands that match his netID and pass
	them on to his WorldEntities.
*/
class CommandNode {
 private:
 	bool bLocalInput;	//!< Identifies the CommandNode that processes local input
 	int netID;	//!< Unique identifier that is used to determine between remote CommandNodes
	KeyBindings* aliases;
	List<WorldEntity>* bound;	//!< List of WorldEntites that recieve commands from this CommandNode
	Sint32 coord[2];
	
	void relay (Command* cmd);
	int* name_to_index (char* name);
	void process_local ();
	void process_network ();
	void send_over_network (Command* cmd);
	
 public:
  CommandNode (int ID);
  CommandNode (char* filename);
  ~CommandNode ();
  
  void load_bindings (char* filename);
  void bind (WorldEntity* entity);
  void unbind (WorldEntity* entity);
  void process ();
  
  void set_netID (int ID);
};

#endif