#include a_samp
#include sscanf

#define BasicXp 100

new PlayerXp[150];
new PlayerLevel[150] = 1;
new MaxLevelUp[150] = 2;

public OnPlayerConnect(playerid)
{
    PlayerLevel[playerid] = 1;
    MaxLevelUp[playerid] = 2;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
	if(!strcmp(cmdtext, "/xp", true))
	{
	    new str[64];
	    format(str, sizeof str, "XP: %d/%d; Level: %d", PlayerXp[playerid], (MaxLevelUp[playerid] * BasicXp), PlayerLevel[playerid]);
	    SendClientMessage(playerid, -1, str);
	    return 1;
	}
	
	if(!strcmp(cmdtext, "/givexp", true, 5))
	{
	    new xp;
	    if(sscanf(cmdtext[7], "d", xp)) return SendClientMessage(playerid, -1, "/givexp [XP]");
	    
	    LevelUp(playerid, xp);
	    
	    return 1;
	}

	return 0;
}

LevelUp(playerid, xp)
{
	if(PlayerLevel[playerid] == 1)
	{
	    if(PlayerXp[playerid] >= 100)
		{
		    PlayerLevel[playerid]++;
		    PlayerXp[playerid] = PlayerXp[playerid] - 100;
		    MaxLevelUp[playerid] = MaxLevelUp[playerid] * 2;
		}
		else
		{
		    PlayerXp[playerid] = PlayerXp[playerid] + xp;
		}
	}
	else
	{

		if(PlayerXp[playerid] >= (MaxLevelUp[playerid] * BasicXp))
		{
		    PlayerLevel[playerid]++;
		    PlayerXp[playerid] = PlayerXp[playerid] - (MaxLevelUp[playerid] * BasicXp);
		    MaxLevelUp[playerid] = MaxLevelUp[playerid] * 2;
		}
		else
		{
		    PlayerXp[playerid] = PlayerXp[playerid] + xp;
		}
	}
}