/*
 * Copyright (C) 1997-2001 Id Software, Inc.
 *
 * This program 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 (at your option)
 * any later version.
 *
 * This program 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
 * this program; if not, write to the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
/* cl_inv.c -- client inventory screen */

#include "client.h"

/*
 * ================ CL_ParseInventory ================
 */
void
CL_ParseInventory(void)
{
	int		i;

	for (i = 0; i < MAX_ITEMS; i++)
		cl.inventory[i] = MSG_ReadShort(&net_message);
}


/*
 * ================ Inv_DrawString ================
 */
void
Inv_DrawString(int x, int y, char *string)
{
	while (*string) {
		re.DrawChar(x, y, *string, 256);
		x += 8;
		string++;
	}
}

void
SetStringHighBit(char *s)
{
	while (*s)
		*s++ |= 128;
}

/*
 * ================ CL_DrawInventory ================
 */
#define	DISPLAY_ITEMS	17

void
CL_DrawInventory(void)
{
	int		i, j;
	int		num, selected_num, item;
	int		index[MAX_ITEMS];
	char		string[1024];
	int		x, y;
	char		binding[1024];
	char           *bind;
	int		selected;
	int		top;

	selected = cl.frame.playerstate.stats[STAT_SELECTED_ITEM];

	num = 0;
	selected_num = 0;
	for (i = 0; i < MAX_ITEMS; i++) {
		if (i == selected)
			selected_num = num;
		if (cl.inventory[i]) {
			index[num] = i;
			num++;
		}
	}

	/* determine scroll point */
	top = selected_num - DISPLAY_ITEMS / 2;
	if (num - top < DISPLAY_ITEMS)
		top = num - DISPLAY_ITEMS;
	if (top < 0)
		top = 0;

	x = (viddef.width - 256) / 2;
	y = (viddef.height - 240) / 2;

	/* repaint everything next frame */
	SCR_DirtyScreen();

	re.DrawPic(x, y + 8, "inventory", cl_hudalpha->value);

	y += 24;
	x += 24;
	Inv_DrawString(x, y, "hotkey ### item");
	Inv_DrawString(x, y + 8, "------ --- ----");
	y += 16;
	for (i = top; i < num && i < top + DISPLAY_ITEMS; i++) {
		item = index[i];
		/* search for a binding */
		Com_sprintf(binding, sizeof(binding), "use %s", cl.configstrings[CS_ITEMS + item]);
		bind = "";
		for (j = 0; j < 256; j++)
			if (keybindings[j] && !Q_stricmp(keybindings[j], binding)) {
				bind = Key_KeynumToString(j);
				break;
			}
		Com_sprintf(string, sizeof(string), "%6s %3i %s", bind, cl.inventory[item],
		    cl.configstrings[CS_ITEMS + item]);
		if (item != selected)
			SetStringHighBit(string);
		else {		/* draw a blinky cursor by the selected item */
			if ((int)(cls.realtime * 10) & 1)
				re.DrawChar(x - 8, y, 15, 256);
		}
		Inv_DrawString(x, y, string);
		y += 8;
	}
	
}