[FS]ChemTrails

/*************************************************************
 Chemtrails Filterscript
 -» Author             : robin_be (yugecin)
 -» Release Date       : 25th March 2012
 -» Description        : Chemtrails for planes (not at-400 and andromada)
 -» Video              : http://www.youtube.com/watch?v=r0MTiZ9xppU
 -» forum post         : http://forum.sa-mp.com/showthread.php?t=328612
**************************************************************/
#include <a_samp>
new ctrails[MAX_PLAYERS][2];
public OnFilterScriptInit() return print("[FS]ChemTrails Loaded!");
public OnFilterScriptExit() {
    for(new i=0; i < MAX_PLAYERS+1; i++){
        if(ctrails[i][0]){
            DestroyObject(ctrails[i][0]);
            DestroyObject(ctrails[i][1]);
            ctrails[i][0] = 0;
        }
    }
    return print("[FS]ChemTrails Unloaded!");
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp(cmdtext, "/ctrails", true)) {
        //460 skimmer
        //520 hydra
        //511 beagle
        //512 cropduster
        //513 stuntplane
        //593 dodo
        //553 nevada
        //476 rustler
        //519 shamal
        if(!IsPlayerInAnyVehicle(playerid)) return SendClientMessage(playerid, 0xFF0000AA, "[Chemtrails] {FFFFFF}You must be in a supported plane!");
        if(GetPlayerState(playerid) != PLAYER_STATE_DRIVER) return SendClientMessage(playerid, 0xFF0000AA, "[Chemtrails] {FFFFFF}You must be the driver!");
        new Float:x, Float:y, Float:z;
        switch(GetVehicleModel(GetPlayerVehicleID(playerid))){
            case 460: {
                x = 5.3;
                y = 0.0;
                z = -0.6;
            }
            case 476: {
                x = 5.3;
                y = 0.9;
                z = -2.0;
            }
            case 511: {
                x = 10.3;
                y = -1.0;
                z = -1.25;
            }
            case 512: {
                x = 5.3;
                y = 1.0;
                z = -0.4;
            }
            case 513: {
                x = 4.0;
                y = 0.0;
                z = -1.0;
            }
            case 519: {
                x = 9.7;
                y = -2.0;
                z = -1.8;
            }
            case 520: {
                x = 4.75;
                y = -1.0;
                z = -2.0;
            }
            case 553: {
                x = 14.0;
                y = 0.5;
                z = -1.25;
            }
            case 593: {
                x = 6.0;
                y = 0.0;
                z = -0.5;
            }
            default: return SendClientMessage(playerid, 0xFF0000AA, "[Chemtrails] {FFFFFF}You have to be in a supported plane!");
        }
        if(ctrails[playerid][0]){
            DestroyObject(ctrails[playerid][0]);
            DestroyObject(ctrails[playerid][1]);
            ctrails[playerid][0] = 0;
            return 1;
        }
        ctrails[playerid][0] = CreateObject(18728, 0.0, 0.0, 0.0, 0.0, 0.0, 256.0);
        ctrails[playerid][1] = CreateObject(18728, 0.0, 0.0, 0.0, 0.0, 0.0, 256.0);
        AttachObjectToVehicle(ctrails[playerid][0], GetPlayerVehicleID(playerid), x, y, z, 0.0, 0.0, 0.0);
        AttachObjectToVehicle(ctrails[playerid][1], GetPlayerVehicleID(playerid), -x, y, z, 0.0, 0.0, 0.0);
        return 1;
    }
    return 0;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(oldstate == PLAYER_STATE_DRIVER && newstate == PLAYER_STATE_ONFOOT){
        if(ctrails[playerid][0]){
            DestroyObject(ctrails[playerid][0]);
            DestroyObject(ctrails[playerid][1]);
            ctrails[playerid][0] = 0;
        }
    }
    if(oldstate == PLAYER_STATE_DRIVER && newstate == PLAYER_STATE_WASTED){
        if(ctrails[playerid][0]){
            DestroyObject(ctrails[playerid][0]);
            DestroyObject(ctrails[playerid][1]);
            ctrails[playerid][0] = 0;
        }
    }
    return 1;
}

public OnPlayerConnect(playerid) ctrails[playerid][0] = 0;
public OnPlayerDisconnect(playerid, reason)
{
   if(ctrails[playerid][0]){
        DestroyObject(ctrails[playerid][0]);
        DestroyObject(ctrails[playerid][1]);
        ctrails[playerid][0] = 0;
    }
}