#include <a_samp>

#define MAX_GAS 100
#define MAX_CARS 255

new Gas[MAX_CARS];

public OnFilterScriptInit()
{
	print("\n----------------------------------");
	print(" Fuel System by Pixels^");
	print("----------------------------------\n");
	for(new c=0; c<255; c++) { // loop through 255 vehicles
		Gas[c] = MAX_GAS; // Gas of 255 vehicles is 100
	}
}

public OnPlayerConnect(playerid)
{
	if(!existproperty(0,"",101))
	{
		setproperty(0,"",101,"1");
		SetTimer("Deplete",1000,1);
		SetTimer("Display",1000,1);
	}
	return 1;
}


stock Float:GetDistanceBetweenPlayers(p1,p2) {
	new Float:x1,Float:y1,Float:z1,Float:x2,Float:y2,Float:z2;
	if (!IsPlayerConnected(p1) || !IsPlayerConnected(p2)) {
		return -1.00;
	}
	GetPlayerPos(p1,x1,y1,z1);
	GetPlayerPos(p2,x2,y2,z2);
	return floatsqroot(floatpower(floatabs(floatsub(x2,x1)),2)+floatpower(floatabs(floatsub(y2,y1)),2)+floatpower(floatabs(floatsub(z2,z1)),2));
}


stock GetClosestPlayer(p1) {
	new x,Float:dis,Float:dis2,player;
	player = -1;
	dis = 99999.99;
	for (x=0;x<MAX_PLAYERS;x++) {
		if (x != p1) {
			dis2 = GetDistanceBetweenPlayers(x,p1);
			if (dis2 < dis && dis2 != -1.00) {
				dis = dis2;
				player = x;
			}
		}
	}
	return player;
}


public Deplete() {
	for(new i=0; i<MAX_PLAYERS; i++) { // loop through all players
		new vehicle = GetPlayerVehicleID(i);
	    if(GetPlayerState(i) == 2) { // if player is driver
	        if(Gas[vehicle] <= 0) { // if gas is 0 or lower
				TogglePlayerControllable(i,0); // freeze player
				GameTextForPlayer(i,"~w~No fuel ~n~~g~/exit",1000,0);
			}
			if(Gas[vehicle] >= 1) { // if gas is 1 or higher
			    Gas[vehicle]--; // reduce gas by 1 point
			}
			if(Gas[vehicle] >= 101) { // if gas is 101 or higher
			    Gas[vehicle] = 100;
				Gas[vehicle]--;
			}
		}
	}
}

public Display() {
	for(new i=0; i<MAX_PLAYERS; i++) { // loop through all players
		new vehicle = GetPlayerVehicleID(i);
	    if(GetPlayerState(i) == 2) { // if player is driver
			new string[255];
			format(string,sizeof(string),"~n~~n~~n~~n~~n~~n~~n~~g~Fuel:%d",Gas[vehicle]);
			GameTextForPlayer(i,string,1000,5);
		}
		if(GetPlayerState(i) == PLAYER_STATE_DRIVER) {
			new p = GetClosestPlayer(i);
			new string[255];
			new veh = GetPlayerVehicleID(p);
			format(string,sizeof(string),"~n~~n~~n~~n~~n~~n~~n~~g~Drivers Fuel:%d",Gas[veh]);
			GameTextForPlayer(i,string,1000,5);
		}
	}
}

public OnPlayerCommandText(playerid, cmdtext[])
{
	new veh = GetPlayerVehicleID(playerid);
	
	if(strcmp(cmdtext, "/fuel", true) == 0) {
	    if(GetPlayerState(playerid) == 2) {
	        if(Gas[veh] >= 100) {
	            SendClientMessage(playerid,0xFFF000AA,"Vehicle full with petrol.");
				return 1;
			}
			if(GetPlayerMoney(playerid) <= 99) {
	            SendClientMessage(playerid,0xFFF000AA,"Not enough money.");
				return 1;
			}
			Gas[veh] = MAX_GAS;
		}
		else {
	    	SendClientMessage(playerid,0xFFF000AA,"Not in a vehicle.");
			return 1;
		}
		return 1;
	}
	
	if(strcmp(cmdtext, "/exit", true) == 0) {
	    RemovePlayerFromVehicle(playerid);
	    return 1;
	}
	
	return 0;
}