// v0.0.2

#include <stdio.h> // printf(), getchar(), fflush()
#include <stdlib.h> // system()
#include <ctype.h> // tolower()

#define FALSE 0
#define TRUE 1

#define ITEM_ID_TORCH 1

void clear(void);
void pause(void);

// hero variables
int level = 1;
int hp = 10, max_hp = 10;
int mp = 0, max_mp = 0;
int atk = 1;
int def = 0;
int gold = 0;
int num_items = 0;
int items[8]; // array of IDs representing items

// room variables
int throne_room_chest_empty = FALSE;

int main(void)
{
	// temporary variables
	int command;
	int i;

	while (TRUE)
	{
		clear();
		printf ("\n");
		
		// room description
		printf ("You are in the King's throne room.\n");
		printf ("\n");
		
		// room commands
		printf ("[1] Speak to the King\n");
		printf ("[2] Speak to the guards\n");
		printf ("[3] Check treasure chest\n");
		printf ("[4] Leave throne room\n");
		printf ("\n");
		
		// common commands
		printf ("[m] Magic   [i] Inventory\n");
		printf ("[s] Status  [a] Search area\n");
		printf ("[q] Quit\n");
		printf ("\n");
		
		// user input retrieval
		printf ("Command? ");
		command = tolower(getchar());
		fflush(stdin);
		printf ("\n");
		
		// check room commands
		switch (command)
		{
		case '1':
			printf ("The King says, \"Please, take what we have provided from the treasure chest,\n");
			printf ("and save the kingdom!\"\n");
			printf ("\n");
			pause();
			break;
			
		case '2':
			printf ("One of the guards says, \"The Princess was kidnapped a week ago, and the King\n");
			printf ("is very worried about her... Please! Rescue the princess!\n");
			printf ("\n");
			pause();
			break;
			
		case '3':
			if (throne_room_chest_empty)
			{
				printf ("The chest is empty.\n");
			}
			else
			{
				printf ("You find a Torch and 180 Gold in the chest!\n");

				gold += 180;
				items[num_items++] = ITEM_ID_TORCH;
				
				throne_room_chest_empty = TRUE;
			}
			printf ("\n");
			pause();
			break;
		}
		
		// check common commands
		switch (command)
		{
		case 'm':
			printf ("You have no magic spells.\n");
			printf ("\n");
			pause();
			break;
			
		case 'i':
			printf ("You have:\n");
			printf ("\t%d Gold\n", gold);
			if (num_items > 0)
			{
				for (i = 0; i < num_items; i++)
				{
					switch (items[i])
					{
						case ITEM_ID_TORCH: printf ("\tTorch\n"); break;
						// TODO: more item types
					}
				}
			}
			else printf ("\tNo items\n");
			printf ("\n");
			pause();
			break;
		
		case 's':
			printf ("Level: %d\n", level);
			printf ("\tHP:  %d/%d\n", hp, max_hp);
			printf ("\tMP:  %d/%d\n", mp, max_mp);
			printf ("\tAtk: %d\n", atk);
			printf ("\tDef: %d\n", def);
			printf ("\n");
			pause();
			break;
			
		// TODO: this should be part of the room commands, shouldn't it?
		case 'a':
			printf ("You don't find anything else.\n");
			printf ("\n");
			pause();
			break;

		case 'q': return 0;
		}
	}
	
	return 0;
}

void clear(void)
{
#ifdef __GNUC__
	system ("CLEAR");
#else
	system ("CLS");
#endif
}

void pause(void)
{
	printf ("--- press ENTER to continue ---");
	getchar();
	fflush(stdin);
}