[jasperschellekens]

This forum is not about asking people to do it for you.
This is what you need to do:

You will have to create a timer to check for example very 2/3 seconds if a player is near a gate.
This can be done like this:
You can create something like this inside that timer to check which gate the player is near.

PHP код:

for(new idx=1; idx<MAX_GATES; idx++)
{
    new Float:cur[3];
    if(GateInfo[idx][gModel])
    {
        GetDynamicObjectPos(GateInfo[idx][gGate], cur[0], cur[1], cur[2]);
        if(IsPlayerInRangeOfPoint(playerid, 8, cur[0], cur[1], cur[2]) || IsPlayerInRangeOfPoint(playerid, 8, GateInfo[idx][gCX], GateInfo[idx][gCY], GateInfo[idx][gCZ]) || IsPlayerInRangeOfPoint(playerid, 8, GateInfo[idx][gOX], GateInfo[idx][gOY], GateInfo[idx][gOZ]))
        {
            //do something to open the gate
        }
    }
} 


So after the script checked which gate the player is near, you will have to open and close this gate.

This can be done like this:

PHP код:

if(GateInfo[idx][gOwner]!= 0)
    {
        if(!GateInfo[idx][gStatus]) // open the gate
        {
            GateInfo[idx][gStatus] = 1;
            MoveDynamicObject(GateInfo[idx][gGate], GateInfo[idx][gOX], GateInfo[idx][gOY], GateInfo[idx][gOZ], GateInfo[idx][gSpeed], GateInfo[idx][gORX], GateInfo[idx][gORY], GateInfo[idx][gORZ]);
            // add a timer to close the gate here
            break;
        }
    }
    else return 0; // If player does not 


If you don't succeed. post what you did try and we will gladly try to help you.