// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
//     https://alliedmods.net/amxmodx-license

//
// Scrolling Message Plugin
//

#include <amxmodx>
#include <amxmisc>

#define SPEED 0.3
#define SCROLLMSG_SIZE	512

new g_startPos;
new g_endPos;
new g_scrollMsg[SCROLLMSG_SIZE];
new g_displayMsg[SCROLLMSG_SIZE];
new Float:g_xPos;
new g_Length;
new g_Frequency;

public plugin_init()
{
	register_plugin("Scrolling Message", AMXX_VERSION_STR, "AMXX Dev Team");
	register_dictionary("scrollmsg.txt");
	register_dictionary("common.txt");
	register_srvcmd("amx_scrollmsg", "setMessage");
}

public showMsg()
{
	new a = g_startPos, i = 0;

	while (a < g_endPos)
	{
		g_displayMsg[i++] = g_scrollMsg[a++];
	}

	g_displayMsg[i] = 0;

	if (g_endPos < g_Length)
	{
		g_endPos++;
	}

	if (g_xPos > 0.35)
	{
		g_xPos -= 0.0063;
	}
	else
	{
		g_startPos++;
		g_xPos = 0.35;
	}

	set_hudmessage(200, 100, 0, g_xPos, 0.90, 0, SPEED, SPEED, 0.05, 0.05, 2);
	show_hudmessage(0, "%s", g_displayMsg);
}

public msgInit()
{
	g_endPos = 1;
	g_startPos = 0;
	g_xPos = 0.65;
	
	new hostname[64];
	
	get_cvar_string("hostname", hostname, charsmax(hostname));
	replace(g_scrollMsg, charsmax(g_scrollMsg), "%hostname%", hostname);
	
	g_Length = strlen(g_scrollMsg);
	
	set_task(SPEED, "showMsg", 123, "", 0, "a", g_Length + 48);
	client_print(0, print_console, "%s", g_scrollMsg);
}

public setMessage()
{
	remove_task(123);		/* remove current messaging */
	read_argv(1, g_scrollMsg, charsmax(g_scrollMsg));
	
	g_Length = strlen(g_scrollMsg);
	
	new mytime[32];
	
	read_argv(2, mytime, charsmax(mytime));
	
	g_Frequency = str_to_num(mytime);
	
	if (g_Frequency > 0)
	{
		new minimal = floatround((g_Length + 48) * (SPEED + 0.1));
		
		if (g_Frequency < minimal)
		{
			server_print("%L", LANG_SERVER, "MIN_FREQ", minimal);
			g_Frequency = minimal;
		}

		server_print("%L", LANG_SERVER, "MSG_FREQ", g_Frequency / 60, g_Frequency % 60);
		set_task(float(g_Frequency), "msgInit", 123, "", 0, "b");
	}
	else
	{
		server_print("%L", LANG_SERVER, "MSG_DISABLED");
	}
	
	return PLUGIN_HANDLED;
}