/*
 * 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.
 */

package lwjake2.client;

import lwjake2.Defines;
import lwjake2.Globals;
import lwjake2.qcommon.Com;
import lwjake2.qcommon.MSG;
import lwjake2.util.Lib;
import lwjake2.util.Vargs;

/**
 * CL_inv
 */
public class CL_inv {

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

		for (i = 0; i < Defines.MAX_ITEMS; i++)
			Globals.cl.inventory[i] = MSG.ReadShort(Globals.net_message);
	}

	/*
	 * ================ Inv_DrawString ================
	 */
	static void Inv_DrawString(int x, int y, String string) {
		for (int i = 0; i < string.length(); i++) {
			Globals.re.DrawChar(x, y, string.charAt(i));
			x += 8;
		}
	}

	static String getHighBitString(String s) {
		byte[] b = Lib.stringToBytes(s);
		for (int i = 0; i < b.length; i++) {
			b[i] = (byte) (b[i] | 128);
		}
		return Lib.bytesToString(b);
	}

	/*
	 * ================ CL_DrawInventory ================
	 */
	static final int DISPLAY_ITEMS = 17;

	static void DrawInventory() {
		int i, j;
		int num, selected_num, item;
		int[] index = new int[Defines.MAX_ITEMS];
		String string;
		int x, y;
		String binding;
		String bind;
		int selected;
		int top;

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

		num = 0;
		selected_num = 0;
		for (i = 0; i < Defines.MAX_ITEMS; i++) {
			if (i == selected)
				selected_num = num;
			if (Globals.cl.inventory[i] != 0) {
				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 = (Globals.viddef.width - 256) / 2;
		y = (Globals.viddef.height - 240) / 2;

		// repaint everything next frame
		SCR.DirtyScreen();

		Globals.re.DrawPic(x, y + 8, "inventory");

		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]);
			binding = "use " + Globals.cl.configstrings[Defines.CS_ITEMS + item];
			bind = "";
			for (j = 0; j < 256; j++)
				if (Globals.keybindings[j] != null && Globals.keybindings[j].equals(binding)) {
					bind = Key.KeynumToString(j);
					break;
				}

			string = Com.sprintf("%6s %3i %s", new Vargs(3).add(bind).add(Globals.cl.inventory[item]).add(
					Globals.cl.configstrings[Defines.CS_ITEMS + item]));
			if (item != selected)
				string = getHighBitString(string);
			else // draw a blinky cursor by the selected item
			{
				if (((int) (Globals.cls.realtime * 10) & 1) != 0)
					Globals.re.DrawChar(x - 8, y, 15);
			}
			Inv_DrawString(x, y, string);
			y += 8;
		}

	}
}