//a function to visualize an item on a panel
void item_visualize( Inventory *inventory, Panel *panel ) {
panel->bmap = inventory->image;
}

////////////////////////////////////////////////////////////////////
//
//		Theseus Engine V1.0
//
////////////////////////////////////////////////////////////////////

#include <acknex.h>
#include <default.c>
#include <litec.h>

//ROOM.c

typedef struct 
{
  int roomNumber;
  BMAP* image;
  STRING* name;

} ROOM;

/*
//a function to visualize an room on a panel
void room_visualize(DUNGEON* dungeon, PANEL* panel)
{
  panel->bmap = dungeon->image;
}
*/

//a function to visualize an item on a panel
void item_visualize( Inventory* inventory, PANEL* panel ) {
  panel->bmap = inventory->image;
}


//ROOM creation function, returns pointer to the newly created ROOM
ROOM* room_create( int number, String* imageName ) 
{
  ROOM* room = malloc( sizeof( ROOM ) );
  
  //always fill ALL the room's properties immediately after!
  room->roomNumber = number;
  room->image = bmap_create( imageName );
  room->name = imageName;
  
  return room; //return the new room back
}


//function to remove an room
void room_remove( ROOM* room ) 
{
  ptr_remove( room->image ); //remove bitmap first
  ptr_remove( room->name ); //remove name
  free( room ); //THEN remove room
}

//ROOM.c

typedef struct 
{
  int roomNumber;
  BMAP* image;
  STRING* name;

} ROOM;


//a function to visualize an room on a panel
void room_visualize(DUNGEON* dungeon, PANEL* panel)
{
  panel->bmap = dungeon->image;
}


//ROOM creation function, returns pointer to the newly created ROOM
ROOM* room_create( int number, String* imageName ) 
{
  ROOM* room = malloc( sizeof( ROOM ) );
  
  //always fill ALL the room's properties immediately after!
  room->roomNumber = number;
  room->image = bmap_create( imageName );
  room->name = imageName;
  
  return room; //return the new room back
}


//function to remove an room
void room_remove( ROOM* room ) 
{
  ptr_remove( room->image ); //remove bitmap first
  ptr_remove( room->name ); //remove name
  free( room ); //THEN remove room
}

//DUNGEON.c
typedef struct 
{  
  bool alive;

  Panel *panel;

  ROOM *item1;
  ROOM *room2;
  
} DUNGEON;


//function to keep the inventory running and catch input
void inventory_run( DUNGEON *inventory ) 
{
    //infinite loop
  //in order to check if the object still exists and prevent empty pointer errors,
  //you can best add an "alive" state, just add an "alive" boolean in the structure, and check it here
  //after the while, call the inventory_remove function to fully destroy
  //We simply make an inventory_kill() function, and set the boolean to false to kill the object
  while( inventory->alive ) { //as long as the inventory is alive, keep loopin'

    //when we press key_1, show room1
    if( key_1 ) 
    {
      room_visualize( inventory->room1, inventory->panel ); //remember this function in the room code?
    }

    //when we press key_2, show room2
    if( key_2 ) 
    {
      room_visualize( inventory->room2, inventory->panel );
    }

    wait( 1 );
  }

  inventory_remove( inventory ); //the object is dead, remove it!
}


//function kill
void dungeon_kill( DUNGEON *dungeon ) 
{
  dungeon->alive = false;
}


//function to create a new dungeon
DUNGEON *dungeon_create() 
{
  //allocate new dungeon structure
  DUNGEON *dungeon = malloc( sizeof( DUNGEON ) );
 
  //once again, fill all its parameters immediately after
  dungeon->alive = true; //we set this object to alive first!
  dungeon->panel = pan_create("bla");
  dungeon->room1 = room_create( 1, "room1.tga" ); //easily create an room
  dungeon->room2 = room_create( 2, "room2.tga" );

  //in addition to the room code, the dungeon code catches player input
  //this run function handles this input, and loops infinitely
  dungeon_run( dungeon );

  return dungeon; //give back the dungeon
}


void dungeon_remove( DUNGEON *dungeon ) 
{
  room_remove( dungeon->room1 ); //remove room1 first
  room_remove( dungeon->room2 ); //remove room2
  ptr_remove( dungeon->panel ); //don't forget to remove the panel too
  free( dungeon ); //THEN remove dungeon safely
}

////////////////////////////////////////////////////////////////////
//
//		Theseus Engine V1.0
//
////////////////////////////////////////////////////////////////////

#include <acknex.h>
#include <default.c>
#include <litec.h>


#include "panels.c"
#include "room.c"
#include "dungeon.c"
////////////////////////////////////////////////////////////////////

void main() 
{

  //create a new inventory!
  DUNGEON *dungeon = dungeon_create();

  //main loop (a little dirty, but forgiveable for now :) )
  while( 1 ) {
    
    //when we press q, remove the inventory
    if( key_q ) 
    {
      dungeon_remove( dungeon ); //this should go smooth without errors...
    }

    wait( 1 );
  }
}

Error in 'room.c' line 20: syntax error

<void item_visualize( Inventory* inventory, PANEL* panel ) {
>

.
Can't compile MAIN.C

//a function to visualize an item on a panel
void item_visualize( Inventory *inventory, Panel *panel ) {
panel->bmap = inventory->image;
}

//a function to visualize an item on a panel
void item_visualize( DUNGEON *inventory, Panel *panel ) {
panel->bmap = inventory->image;
}