#include common_scripts\utility;
#include maps\mp\_utility;
#include maps\mp\gametypes\_hud_util;

/*
 * Clears the memory of shown hints for a player once he disconnects.
 */
clearHintsShownOnDisconnect()
{
	logString("clearHintsShownOnDisconnect called");

	if (IsDefined(self.clearHintsShownOnDisconnectThreadRunning) && self.clearHintsShownOnDisconnectThreadRunning)
	{
		return;
	}

	self.clearHintsShownOnDisconnectThreadRunning = true;

	id = self getEntityNumber();

	self waittill("disconnect");
	self clearHintsShownOnDisconnect();
}

/*
 * Clears the memory of shown hints for the player.
 */
clearHintsShown()
{
	logString("clearHintsShown called");

	id = self.guid;
	if (!IsDefined(level.shownPlayerHints))
	{
		level.shownPlayerHints = [];
	}
	if (IsDefined(level.shownPlayerHints[id]))
	{
		level.shownPlayerHints[id] = undefined;
	}
}

/*
 * Displays a hint for the player (self) if it hasn't been shown before for him.
 */
showHintOnce(text)
{
	logString("showHintOnce called");

	id = self.guid;

	if (!IsDefined(level.shownPlayerHints))
	{
		level.shownPlayerHints = [];
	}
	if (!IsDefined(level.shownPlayerHints[id]))
	{
		level.shownPlayerHints[id] = [];
	}
	if (!IsDefined(level.shownPlayerHints[id][text]) || !level.shownPlayerHints[id][text])
	{
		level.shownPlayerHints[id][text] = true;
		self showHint(text);
	}
	else
	{
		self hideHint();
	}
}

/*
 * Displays a small hint for the player (self) at the bottom of the screen.
 */
showHint(text)
{
	logString("showHint called");

	player = self;

	player notify("hint_about_to_be_changed");

	if (!IsDefined(player.hudHintElement))
	{
		player.hudHintElement = createFontString("default", 1.5, player); // "default"
		player.hudHintElement setPoint("BOTTOMRIGHT", "BOTTOMRIGHT", -96, -72);
		player.hudHintElement.alpha = 0;
		player.hudHintElement.hideWhenInMenu = true;
	}
	else
	{
		player fadeHint(0);
	}

	player.hudHintElement setText(text);
	player fadeHint(1);
	player thread hideHintInSeconds(15);
}

hideHintInSeconds(time)
{
	logString("hideHintInSeconds called");

	player = self;

	player endon("hint_about_to_be_changed");

	wait time;
	player hideHint();
}

/*
 * Hides the hint message for the player (self).
 */
hideHint()
{
	logString("hideHint called");

	player = self;

	if (!IsDefined(player.hudHintElement))
	{
		return;
	}

	player fadeHint(0);
	player.hudHintElement destroyElem();
	player.hudHintElement = undefined;
}

fadeHint(alpha, length)
{
	logString("fadeHint called");

	player = self;

	if (!IsDefined(player.hudHintElement))
	{
		return;
	}

	if (length == undefined)
	{
		length = 0.33;
	}

	interval = 0.05;

	if (player.hudHintElement.alpha < alpha)
	{
		// fade in
		step = (alpha - player.hudHintElement.alpha) / (length / interval);
		for (a = player.hudHintElement.alpha; a < alpha; a += step)
		{
			player.hudHintElement.alpha = a;
			wait interval;
		}
	}
	else
	{
		// fade out
		step = (player.hudHintElement.alpha - alpha) / (length / interval);
		for (a = player.hudHintElement.alpha; a > alpha; a -= step)
		{
			player.hudHintElement.alpha = a;
			wait interval;
		}
	}

	player.hudHintElement.alpha = alpha;
}