#include	<a_samp>

new SpeedBoost[MAX_PLAYERS];

stock IsKeyJustDown(key, newkeys, oldkeys)
{
	if((newkeys & key) && !(oldkeys & key))
		return 1;

	return 0;
}

stock IsKeyReleased(key, newkeys, oldkeys)
{
	if(!(newkeys & key) && (oldkeys & key))
		return 1;

	return 0;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(IsKeyJustDown(KEY_SPRINT, newkeys, oldkeys))
	{
		if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
		{
			SpeedBoost[playerid] = 1;
		}
	}
	if(IsKeyReleased(KEY_SPRINT, newkeys, oldkeys))
	{
	    if(SpeedBoost[playerid] > 0)
		{
			new Float:vx, Float:vy, Float:vz, vehicleid = GetPlayerVehicleID(playerid);
		    GetVehicleVelocity(vehicleid, vx, vy, vz);
		    if(floatabs(vx) < 3 && floatabs(vy) < 3 && floatabs(vz) < 3)
		    {
		    	SetVehicleVelocity(vehicleid, vx * 0.95, vy * 0.95, vz * 0.95);
		    }
		    SpeedBoost[playerid] = 0;
   		}
	}
	return 1;
}

public OnPlayerUpdate(playerid)
{
	if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
	{
		if(SpeedBoost[playerid] > 0)
		{
			new Float:vx, Float:vy, Float:vz, vehicleid = GetPlayerVehicleID(playerid);
		    GetVehicleVelocity(vehicleid, vx, vy, vz);
		    if(floatabs(vx) < 3 && floatabs(vy) < 3 && floatabs(vz) < 3)
		    {
		    	SetVehicleVelocity(vehicleid, vx * 1.05, vy * 1.05, vz * 1.05);
		    }
   		}
	}
	return 1;
}