Fix invalid handle

Fix invalid handle

https://forums.alliedmods.net/showpost.php?p=2502278&postcount=972

// *************************************************************************
//  This file is part of SourceBans++.
//
//  Copyright (C) 2014-2016 SourceBans++ Dev Team <https://github.com/sbpp>
//
//  SourceBans++ is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, per version 3 of the License.
//
//  SourceBans++ is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with SourceBans++. If not, see <http://www.gnu.org/licenses/>.
//
//  This file is based off work(s) covered by the following copyright(s):
//
//   SourceSleuth 1.3 fix
//   Copyright (C) 2013-2015 ecca
//   Licensed under GNU GPL version 3, or later.
//   Page: <https://forums.alliedmods.net/showthread.php?p=1818793> - <https://github.com/ecca/SourceMod-Plugins>
//
// *************************************************************************

#pragma semicolon 1
#include <sourcemod>
#undef REQUIRE_PLUGIN
#include <sourcebans>

#define PLUGIN_VERSION "1.6.0"

#define LENGTH_ORIGINAL 1
#define LENGTH_CUSTOM 2
#define LENGTH_DOUBLE 3
#define LENGTH_NOTIFY 4

//- Handles -//
new Handle:hDatabase = INVALID_HANDLE;
new Handle:g_hAllowedArray = INVALID_HANDLE;

//- ConVars -//
ConVar g_cVar_actions;
ConVar g_cVar_banduration;
ConVar g_cVar_sbprefix;
ConVar g_cVar_bansAllowed;
ConVar g_cVar_bantype;
ConVar g_cVar_bypass;

//- Bools -//
new bool:CanUseSourcebans = false;

public Plugin:myinfo =
{
	name = "SourceBans++: SourceSleuth",
	author = "ecca, SourceBans++ Dev Team",
	description = "Useful for TF2 servers. Plugin will check for banned ips and ban the player.",
	version = PLUGIN_VERSION,
	url = "https://sbpp.sarabveer.me/"
};

public OnPluginStart()
{
	LoadTranslations("sourcesleuth.phrases");

	CreateConVar("sm_sourcesleuth_version", PLUGIN_VERSION, "SourceSleuth plugin version", FCVAR_SPONLY | FCVAR_REPLICATED | FCVAR_NOTIFY | FCVAR_DONTRECORD);

	g_cVar_actions = CreateConVar("sm_sleuth_actions", "3", "Sleuth Ban Type: 1 - Original Length, 2 - Custom Length, 3 - Double Length, 4 - Notify Admins Only", 0, true, 1.0, true, 4.0);
	g_cVar_banduration = CreateConVar("sm_sleuth_duration", "0", "Required: sm_sleuth_actions 1: Bantime to ban player if we got a match (0 = permanent (defined in minutes) )", 0);
	g_cVar_sbprefix = CreateConVar("sm_sleuth_prefix", "sb", "Prexfix for sourcebans tables: Default sb", 0);
	g_cVar_bansAllowed = CreateConVar("sm_sleuth_bansallowed", "0", "How many active bans are allowed before we act", 0);
	g_cVar_bantype = CreateConVar("sm_sleuth_bantype", "0", "0 - ban all type of lengths, 1 - ban only permanent bans", 0, true, 0.0, true, 1.0);
	g_cVar_bypass = CreateConVar("sm_sleuth_adminbypass", "0", "0 - Inactivated, 1 - Allow all admins with ban flag to pass the check", 0, true, 0.0, true, 1.0);

	g_hAllowedArray = CreateArray(256);

	AutoExecConfig(true, "Sm_SourceSleuth");

	SQL_TConnect(SQL_OnConnect, "sourcebans");

	RegAdminCmd("sm_sleuth_reloadlist", ReloadListCallBack, ADMFLAG_ROOT);

	LoadWhiteList();
}

public OnAllPluginsLoaded()
{
	CanUseSourcebans = LibraryExists("sourcebans");
}

public OnLibraryAdded(const String:name[])
{
	if (StrEqual("sourcebans", name))
	{
		CanUseSourcebans = true;
	}
}

public OnLibraryRemoved(const String:name[])
{
	if (StrEqual("sourcebans", name))
	{
		CanUseSourcebans = false;
	}
}

public SQL_OnConnect(Handle:owner, Handle:hndl, const String:error[], any:data)
{
	if (hndl == INVALID_HANDLE)
	{
		LogError("SourceSleuth: Database connection error: %s", error);
	}
	else
	{
		hDatabase = hndl;
	}
}

public Action:ReloadListCallBack(client, args)
{
	ClearArray(g_hAllowedArray);

	LoadWhiteList();

	LogMessage("%L reloaded the whitelist", client);

	if (client != 0)
	{
		PrintToChat(client, "[SourceSleuth] WhiteList has been reloaded!");
	}

	return Plugin_Continue;
}

public OnClientPostAdminCheck(client)
{
	if (CanUseSourcebans && !IsFakeClient(client))
	{
		new String:steamid[32];
		GetClientAuthId(client, AuthId_Steam2, steamid, sizeof(steamid));

		if (g_cVar_bypass.BoolValue && CheckCommandAccess(client, "sleuth_admin", ADMFLAG_BAN, false))
		{
			return;
		}

		if (FindStringInArray(g_hAllowedArray, steamid) == -1)
		{
			new String:IP[32], String:Prefix[64];
			GetClientIP(client, IP, sizeof(IP));

			g_cVar_sbprefix.GetString(Prefix, sizeof(Prefix));

			new String:query[1024];

			FormatEx(query, sizeof(query), "SELECT * FROM %s_bans WHERE ip='%s' AND RemoveType IS NULL AND (ends > %d OR length = 0)", Prefix, IP, g_cVar_bantype.IntValue == 0 ? GetTime() : 0);

			new Handle:datapack = CreateDataPack();

			WritePackCell(datapack, GetClientUserId(client));
			WritePackString(datapack, steamid);
			WritePackString(datapack, IP);
			ResetPack(datapack);

			SQL_TQuery(hDatabase, SQL_CheckHim, query, datapack);
		}
	}
}

public SQL_CheckHim(Handle:owner, Handle:hndl, const String:error[], any:datapack)
{
	new client;
	decl String:steamid[32], String:IP[32];

	if (datapack != INVALID_HANDLE)
	{
		client = GetClientOfUserId(ReadPackCell(datapack));
		ReadPackString(datapack, steamid, sizeof(steamid));
		ReadPackString(datapack, IP, sizeof(IP));
		CloseHandle(datapack);
	}

	if (hndl == INVALID_HANDLE)
	{
		LogError("SourceSleuth: Database query error: %s", error);
		return;
	}

	if (SQL_FetchRow(hndl))
	{
		new TotalBans = SQL_GetRowCount(hndl);

		if (TotalBans > g_cVar_bansAllowed.IntValue)
		{
			switch (g_cVar_actions.IntValue)
			{
				case LENGTH_ORIGINAL:
				{
					new length = SQL_FetchInt(hndl, 6);
					new time = length * 60;

					BanPlayer(client, time);
				}
				case LENGTH_CUSTOM:
				{
					new time = g_cVar_banduration.IntValue;
					BanPlayer(client, time);
				}
				case LENGTH_DOUBLE:
				{
					new length = SQL_FetchInt(hndl, 6);

					new time = 0;

					if (length != 0)
					{
						time = length / 60 * 2;
					}

					BanPlayer(client, time);
				}
				case LENGTH_NOTIFY:
				{
					/* Notify Admins when a client with an ip on the bans list connects */
					PrintToAdmins("[SourceSleuth] %t", "sourcesleuth_admintext", client, steamid, IP);
				}
			}
		}
	}
}

stock BanPlayer(client, time)
{
	decl String:Reason[255];
	Format(Reason, sizeof(Reason), "[SourceSleuth] %t", "sourcesleuth_banreason");
	SBBanPlayer(0, client, time, Reason);
}

PrintToAdmins(const String:format[], any:...)
{
	new String:g_Buffer[256];

	for (new i = 1; i <= MaxClients; i++)
	{
		if (CheckCommandAccess(i, "sm_sourcesleuth_printtoadmins", ADMFLAG_BAN) && IsClientInGame(i))
		{
			VFormat(g_Buffer, sizeof(g_Buffer), format, 2);

			PrintToChat(i, "%s", g_Buffer);
		}
	}
}

public LoadWhiteList()
{
	decl String:path[PLATFORM_MAX_PATH], String:line[256];

	BuildPath(Path_SM, path, PLATFORM_MAX_PATH, "configs/sourcesleuth_whitelist.cfg");

	new Handle:fileHandle = OpenFile(path, "r");

	if (fileHandle == INVALID_HANDLE)
	{
		LogError("Could not find the config file (addons/sourcemod/configs/sourcesleuth_whitelist.cfg)");

		return;
	}

	while (!IsEndOfFile(fileHandle) && ReadFileLine(fileHandle, line, sizeof(line)))
	{
		ReplaceString(line, sizeof(line), "\n", "", false);

		PushArrayString(g_hAllowedArray, line);
	}

	CloseHandle(fileHandle);
}

// *************************************************************************
//  This file is part of SourceBans++.
//
//  Copyright (C) 2014-2016 SourceBans++ Dev Team <https://github.com/sbpp>
//
//  SourceBans++ is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, per version 3 of the License.
//
//  SourceBans++ is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with SourceBans++. If not, see <http://www.gnu.org/licenses/>.
//
//  This file is based off work(s) covered by the following copyright(s):
//
//   SourceSleuth 1.3 fix
//   Copyright (C) 2013-2015 ecca
//   Licensed under GNU GPL version 3, or later.
//   Page: <https://forums.alliedmods.net/showthread.php?p=1818793> - <https://github.com/ecca/SourceMod-Plugins>
//
// *************************************************************************

#pragma semicolon 1
#include <sourcemod>
#undef REQUIRE_PLUGIN
#include <sourcebans>

#define PLUGIN_VERSION "1.6.0"

#define LENGTH_ORIGINAL 1
#define LENGTH_CUSTOM 2
#define LENGTH_DOUBLE 3
#define LENGTH_NOTIFY 4

//- Handles -//
new Handle:hDatabase = INVALID_HANDLE;
new Handle:g_hAllowedArray = INVALID_HANDLE;

//- ConVars -//
ConVar g_cVar_actions;
ConVar g_cVar_banduration;
ConVar g_cVar_sbprefix;
ConVar g_cVar_bansAllowed;
ConVar g_cVar_bantype;
ConVar g_cVar_bypass;

//- Bools -//
new bool:CanUseSourcebans = false;

public Plugin:myinfo =
{
	name = "SourceBans++: SourceSleuth",
	author = "ecca, SourceBans++ Dev Team",
	description = "Useful for TF2 servers. Plugin will check for banned ips and ban the player.",
	version = PLUGIN_VERSION,
	url = "https://sbpp.sarabveer.me/"
};

public OnPluginStart()
{
	LoadTranslations("sourcesleuth.phrases");

	CreateConVar("sm_sourcesleuth_version", PLUGIN_VERSION, "SourceSleuth plugin version", FCVAR_SPONLY | FCVAR_REPLICATED | FCVAR_NOTIFY | FCVAR_DONTRECORD);

	g_cVar_actions = CreateConVar("sm_sleuth_actions", "3", "Sleuth Ban Type: 1 - Original Length, 2 - Custom Length, 3 - Double Length, 4 - Notify Admins Only", 0, true, 1.0, true, 4.0);
	g_cVar_banduration = CreateConVar("sm_sleuth_duration", "0", "Required: sm_sleuth_actions 1: Bantime to ban player if we got a match (0 = permanent (defined in minutes) )", 0);
	g_cVar_sbprefix = CreateConVar("sm_sleuth_prefix", "sb", "Prexfix for sourcebans tables: Default sb", 0);
	g_cVar_bansAllowed = CreateConVar("sm_sleuth_bansallowed", "0", "How many active bans are allowed before we act", 0);
	g_cVar_bantype = CreateConVar("sm_sleuth_bantype", "0", "0 - ban all type of lengths, 1 - ban only permanent bans", 0, true, 0.0, true, 1.0);
	g_cVar_bypass = CreateConVar("sm_sleuth_adminbypass", "0", "0 - Inactivated, 1 - Allow all admins with ban flag to pass the check", 0, true, 0.0, true, 1.0);

	g_hAllowedArray = CreateArray(256);

	AutoExecConfig(true, "Sm_SourceSleuth");

	SQL_TConnect(SQL_OnConnect, "sourcebans");

	RegAdminCmd("sm_sleuth_reloadlist", ReloadListCallBack, ADMFLAG_ROOT);

	LoadWhiteList();
}

public OnAllPluginsLoaded()
{
	CanUseSourcebans = LibraryExists("sourcebans");
}

public OnLibraryAdded(const String:name[])
{
	if (StrEqual("sourcebans", name))
	{
		CanUseSourcebans = true;
	}
}

public OnLibraryRemoved(const String:name[])
{
	if (StrEqual("sourcebans", name))
	{
		CanUseSourcebans = false;
	}
}

public SQL_OnConnect(Handle:owner, Handle:hndl, const String:error[], any:data)
{
	if (hndl == INVALID_HANDLE)
	{
		LogError("SourceSleuth: Database connection error: %s", error);
	}
	else
	{
		hDatabase = hndl;
	}
}

public Action:ReloadListCallBack(client, args)
{
	ClearArray(g_hAllowedArray);

	LoadWhiteList();

	LogMessage("%L reloaded the whitelist", client);

	if (client != 0)
	{
		PrintToChat(client, "[SourceSleuth] WhiteList has been reloaded!");
	}

	return Plugin_Continue;
}

public OnClientPostAdminCheck(client)
{
	if (CanUseSourcebans && !IsFakeClient(client))
	{
		new String:steamid[32];
		GetClientAuthId(client, AuthId_Steam2, steamid, sizeof(steamid));

		if (g_cVar_bypass.BoolValue && CheckCommandAccess(client, "sleuth_admin", ADMFLAG_BAN, false))
		{
			return;
		}

		if (FindStringInArray(g_hAllowedArray, steamid) == -1)
		{
			new String:IP[32], String:Prefix[64];
			GetClientIP(client, IP, sizeof(IP));

			g_cVar_sbprefix.GetString(Prefix, sizeof(Prefix));

			new String:query[1024];

			FormatEx(query, sizeof(query), "SELECT * FROM %s_bans WHERE ip='%s' AND RemoveType IS NULL AND (ends > %d OR length = 0)", Prefix, IP, g_cVar_bantype.IntValue == 0 ? GetTime() : 0);

			new Handle:datapack = CreateDataPack();

			WritePackCell(datapack, GetClientUserId(client));
			WritePackString(datapack, steamid);
			WritePackString(datapack, IP);
			ResetPack(datapack);

			SQL_TQuery(hDatabase, SQL_CheckHim, query, datapack);
		}
	}
}

public SQL_CheckHim(Handle:owner, Handle:hndl, const String:error[], any:datapack)
{
	new client;
	decl String:steamid[32], String:IP[32];

	if (datapack != INVALID_HANDLE)
	{
		client = GetClientOfUserId(ReadPackCell(datapack));
		ReadPackString(datapack, steamid, sizeof(steamid));
		ReadPackString(datapack, IP, sizeof(IP));
		CloseHandle(datapack);
	}

	if (hndl == INVALID_HANDLE)
	{
		LogError("SourceSleuth: Database query error: %s", error);
		return;
	}

	if (SQL_FetchRow(hndl))
	{
		new TotalBans = SQL_GetRowCount(hndl);

		if (TotalBans > g_cVar_bansAllowed.IntValue)
		{
			switch (g_cVar_actions.IntValue)
			{
				case LENGTH_ORIGINAL:
				{
					new length = SQL_FetchInt(hndl, 6);
					new time = length * 60;

					BanPlayer(client, time);
				}
				case LENGTH_CUSTOM:
				{
					new time = g_cVar_banduration.IntValue;
					BanPlayer(client, time);
				}
				case LENGTH_DOUBLE:
				{
					new length = SQL_FetchInt(hndl, 6);

					new time = 0;

					if (length != 0)
					{
						time = length / 60 * 2;
					}

					BanPlayer(client, time);
				}
				case LENGTH_NOTIFY:
				{
					/* Notify Admins when a client with an ip on the bans list connects */
					PrintToAdmins("[SourceSleuth] %t", "sourcesleuth_admintext", client, steamid, IP);
				}
			}
		}
	}
}

stock BanPlayer(client, time)
{
	decl String:Reason[255];
	Format(Reason, sizeof(Reason), "[SourceSleuth] %t", "sourcesleuth_banreason");
	SBBanPlayer(0, client, time, Reason);
}

PrintToAdmins(const String:format[], any:...)
{
	new String:g_Buffer[256];

	for (new i = 1; i <= MaxClients; i++)
	{
		if (CheckCommandAccess(i, "sm_sourcesleuth_printtoadmins", ADMFLAG_BAN) && IsClientInGame(i))
		{
			VFormat(g_Buffer, sizeof(g_Buffer), format, 2);

			PrintToChat(i, "%s", g_Buffer);
		}
	}
}

public LoadWhiteList()
{
	decl String:path[PLATFORM_MAX_PATH], String:line[256];

	BuildPath(Path_SM, path, PLATFORM_MAX_PATH, "configs/sourcesleuth_whitelist.cfg");

	new Handle:fileHandle = OpenFile(path, "r");

	while (!IsEndOfFile(fileHandle) && ReadFileLine(fileHandle, line, sizeof(line)))
	{
		ReplaceString(line, sizeof(line), "\n", "", false);

		PushArrayString(g_hAllowedArray, line);
	}

	CloseHandle(fileHandle);
}


Remove cvar change hook

Remove cvar change hook

/**
 * vim: set ts=4 :
 * =============================================================================
 * Jetpack Plus
 * Rewrite of the Sourcemod plugin to make it easier to extend and modify.
 *
 * Copyright 2014 CrimsonTautology
 * =============================================================================
 *
 */

#pragma semicolon 1

#include <sourcemod>
#include <sdktools>
#include <smlib/entities>

#define PLUGIN_VERSION "0.1"

#define MOVECOLLIDE_DEFAULT		0
#define MOVECOLLIDE_FLY_BOUNCE	1

public Plugin:myinfo =
{
    name = "Jetpack Plus",
    author = "CrimsonTautology",
    description = "Let client's fly around by holding jump.",
    version = PLUGIN_VERSION,
    url = "https://github.com/CrimsonTautology/sm_jetpack_plus"
};

new Handle:g_Cvar_Enabled = INVALID_HANDLE;
new Handle:g_Cvar_JetpackForce = INVALID_HANDLE;
new Handle:g_Cvar_JumpDelay = INVALID_HANDLE;

new Handle:g_Forward_OnStartJetpack = INVALID_HANDLE;
new Handle:g_Forward_OnStopJetpack = INVALID_HANDLE;
new Handle:g_Forward_OnJetpackStep= INVALID_HANDLE;

new g_Offset_movecollide = -1;

new bool:g_IsUsingJetpack[MAXPLAYERS+1] = {false, ...};

public APLRes:AskPluginLoad2(Handle:myself, bool:late, String:error[], err_max)
{
    if (LibraryExists("jetpack_plus"))
    {
        strcopy(error, err_max, "Jetpack Plus already loaded, aborting.");
        return APLRes_Failure;
    }

    RegPluginLibrary("jetpack_plus");

    CreateNative("IsClientUsingJetpack", _IsClientUsingJetpack);
    CreateNative("AreJetpacksEnabled", _AreJetpacksEnabled);

    return APLRes_Success;
}

public OnPluginStart()
{
    LoadTranslations("jetpack_plus.phrases");

    g_Cvar_Enabled = CreateConVar(
            "sm_jetpack",
            "1",
            "Set to 1 to enable the jetpack plugin");
    g_Cvar_JetpackForce = CreateConVar(
            "sm_jetpack_force",
            "8.0",
            "Strength at which the jetpack pushes the player"
            );
    g_Cvar_JumpDelay = CreateConVar(
            "sm_jetpack_jump_delay",
            "0.15",
            "The time in seconds the jump key needs to be pressed before the jetpack starts"
            );

    g_Forward_OnStartJetpack = CreateGlobalForward("OnStartJetpack", ET_Ignore, Param_Cell);
    g_Forward_OnStopJetpack =  CreateGlobalForward("OnStopJetpack",  ET_Ignore, Param_Cell);
    g_Forward_OnJetpackStep =  CreateGlobalForward("OnJetpackStep",  ET_Ignore, Param_Cell);

    if((g_Offset_movecollide = FindSendPropOffs("CBaseEntity", "movecollide")) == -1)
        LogError("Could not find offset for CBaseEntity::movecollide");
}

public OnClientDisconnect(client)
{
    StopJetpack(client);
}

public OnGameFrame()
{
    if(AreJetpacksEnabled())
    {
        for (new client=1; client <= MaxClients; client++)
        {
            //For each client using a jetpack
            if(IsClientUsingJetpack(client))
            {
                JetpackStep(client);
            }
        }
    }
}

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon, &subtype, &cmdnum, &tickcount, &seed, mouse[2])
{
    if(!AreJetpacksEnabled()) return Plugin_Continue;

    if(!IsClientUsingJetpack(client) && buttons & IN_JUMP)
    {
        new player = GetClientUserId(client);
        new Float:delay = GetConVarFloat(g_Cvar_JumpDelay);
        CreateTimer(delay, HeldJump, player);
    }

    return Plugin_Continue;
}

//Call back for when a player presses jump.  Checks if jump is still held down
public Action:HeldJump(Handle:timer, any:player)
{
    new client = GetClientOfUserId(player);

    if(!IsClientInGame(client)) return Plugin_Handled;

    if(!IsClientUsingJetpack(client) && GetClientButtons(client) & IN_JUMP)
    {
        StartJetpack(client);
    }

    return Plugin_Handled;
}

public _IsClientUsingJetpack(Handle:plugin, args) { return _:IsClientUsingJetpack(GetNativeCell(1)); }
bool:IsClientUsingJetpack(client)
{
    return g_IsUsingJetpack[client];
}

public _AreJetpacksEnabled(Handle:plugin, args) { return _:AreJetpacksEnabled(); }
bool:AreJetpacksEnabled()
{
    return GetConVarBool(g_Cvar_Enabled);
}

StartJetpack(client)
{
    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnStartJetpack);
    Call_PushCell(client);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    SetEntityMoveType(client, MOVETYPE_FLY);
    SetEntityMoveCollide(client, MOVECOLLIDE_FLY_BOUNCE);
    ChangeEdictState(client);
    g_IsUsingJetpack[client] = true;
}

StopJetpack(client)
{
    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnStopJetpack);
    Call_PushCell(client);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    SetEntityMoveType(client, MOVETYPE_WALK);
    SetEntityMoveCollide(client, MOVECOLLIDE_DEFAULT);
    ChangeEdictState(client);
    g_IsUsingJetpack[client] = false;
}

//Called each frame a client is using a jetpack
JetpackStep(client)
{
    new Float:force = GetConVarFloat(g_Cvar_JetpackForce);
    new bool:force_stop = false;

    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnJetpackStep);
    Call_PushCell(client);
    Call_PushFloatRef(force);
    Call_PushCellRef(force_stop);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    new buttons = GetClientButtons(client);
    if(!force_stop && IsPlayerAlive(client) && (buttons & IN_JUMP))
    {
        JetpackPush(client, force);
    }
    else
    {
        StopJetpack(client);
    }
}

JetpackPush(client, Float:force)
{
    new Float:vec[3];
    Entity_GetBaseVelocity(client, vec);
    vec[2] += force;
    Entity_SetBaseVelocity(client, vec);
    ChangeEdictState(client);
}

SetEntityMoveCollide(entity, movecollide)
{
    if(g_Offset_movecollide == -1) return;
    SetEntData(entity, g_Offset_movecollide, movecollide);
}

/**
 * vim: set ts=4 :
 * =============================================================================
 * Jetpack Plus
 * Rewrite of the Sourcemod plugin to make it easier to extend and modify.
 *
 * Copyright 2014 CrimsonTautology
 * =============================================================================
 *
 */

#pragma semicolon 1

#include <sourcemod>
#include <sdktools>
#include <smlib/entities>

#define PLUGIN_VERSION "0.1"

#define MOVECOLLIDE_DEFAULT		0
#define MOVECOLLIDE_FLY_BOUNCE	1

public Plugin:myinfo =
{
    name = "Jetpack Plus",
    author = "CrimsonTautology",
    description = "Let client's fly around by holding jump.",
    version = PLUGIN_VERSION,
    url = "https://github.com/CrimsonTautology/sm_jetpack_plus"
};

new Handle:g_Cvar_Enabled = INVALID_HANDLE;
new Handle:g_Cvar_JetpackForce = INVALID_HANDLE;
new Handle:g_Cvar_JumpDelay = INVALID_HANDLE;

new Handle:g_Forward_OnStartJetpack = INVALID_HANDLE;
new Handle:g_Forward_OnStopJetpack = INVALID_HANDLE;
new Handle:g_Forward_OnJetpackStep= INVALID_HANDLE;

new g_Offset_movecollide = -1;

new bool:g_IsUsingJetpack[MAXPLAYERS+1] = {false, ...};

public APLRes:AskPluginLoad2(Handle:myself, bool:late, String:error[], err_max)
{
    if (LibraryExists("jetpack_plus"))
    {
        strcopy(error, err_max, "Jetpack Plus already loaded, aborting.");
        return APLRes_Failure;
    }

    RegPluginLibrary("jetpack_plus");

    CreateNative("IsClientUsingJetpack", _IsClientUsingJetpack);
    CreateNative("AreJetpacksEnabled", _AreJetpacksEnabled);

    return APLRes_Success;
}

public OnPluginStart()
{
    LoadTranslations("jetpack_plus.phrases");

    g_Cvar_Enabled = CreateConVar(
            "sm_jetpack",
            "1",
            "Set to 1 to enable the jetpack plugin");
    g_Cvar_JetpackForce = CreateConVar(
            "sm_jetpack_force",
            "8.0",
            "Strength at which the jetpack pushes the player"
            );
    g_Cvar_JumpDelay = CreateConVar(
            "sm_jetpack_jump_delay",
            "0.15",
            "The time in seconds the jump key needs to be pressed before the jetpack starts"
            );

    HookConVarChange(g_Cvar_Enabled, OnJetpackEnabledChange);

    g_Forward_OnStartJetpack = CreateGlobalForward("OnStartJetpack", ET_Ignore, Param_Cell);
    g_Forward_OnStopJetpack =  CreateGlobalForward("OnStopJetpack",  ET_Ignore, Param_Cell);
    g_Forward_OnJetpackStep =  CreateGlobalForward("OnJetpackStep",  ET_Ignore, Param_Cell);

    if((g_Offset_movecollide = FindSendPropOffs("CBaseEntity", "movecollide")) == -1)
        LogError("Could not find offset for CBaseEntity::movecollide");
}

public OnClientDisconnect(client)
{
    StopJetpack(client);
}

public OnGameFrame()
{
    if(AreJetpacksEnabled())
    {
        for (new client=1; client <= MaxClients; client++)
        {
            //For each client using a jetpack
            if(IsClientUsingJetpack(client))
            {
                JetpackStep(client);
            }
        }
    }
}

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon, &subtype, &cmdnum, &tickcount, &seed, mouse[2])
{
    if(!AreJetpacksEnabled()) return Plugin_Continue;

    if(!IsClientUsingJetpack(client) && buttons & IN_JUMP)
    {
        new player = GetClientUserId(client);
        new Float:delay = GetConVarFloat(g_Cvar_JumpDelay);
        CreateTimer(delay, HeldJump, player);
    }

    return Plugin_Continue;
}

//Call back for when a player presses jump.  Checks if jump is still held down
public Action:HeldJump(Handle:timer, any:player)
{
    new client = GetClientOfUserId(player);

    if(!IsClientInGame(client)) return Plugin_Handled;

    if(!IsClientUsingJetpack(client) && GetClientButtons(client) & IN_JUMP)
    {
        StartJetpack(client);
    }

    return Plugin_Handled;
}

public OnJetpackEnabledChange(Handle:convar, const String:old[], const String:new[])
{
    //When enabled state changes from enabled to disabled
    if(bool:StringToInt(old) && !bool:StringToInt(new))
    {
        // force stop jetpack for each client
        for (new client=1; client <= MaxClients; client++)
        {
            if(IsClientUsingJetpack(client))
            {
                StopJetpack(client);
            }
        }
    }
}

public _IsClientUsingJetpack(Handle:plugin, args) { return _:IsClientUsingJetpack(GetNativeCell(1)); }
bool:IsClientUsingJetpack(client)
{
    return g_IsUsingJetpack[client];
}

public _AreJetpacksEnabled(Handle:plugin, args) { return _:AreJetpacksEnabled(); }
bool:AreJetpacksEnabled()
{
    return GetConVarBool(g_Cvar_Enabled);
}

StartJetpack(client)
{
    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnStartJetpack);
    Call_PushCell(client);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    SetEntityMoveType(client, MOVETYPE_FLY);
    SetEntityMoveCollide(client, MOVECOLLIDE_FLY_BOUNCE);
    ChangeEdictState(client);
    g_IsUsingJetpack[client] = true;
}

StopJetpack(client)
{
    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnStopJetpack);
    Call_PushCell(client);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    SetEntityMoveType(client, MOVETYPE_WALK);
    SetEntityMoveCollide(client, MOVECOLLIDE_DEFAULT);
    ChangeEdictState(client);
    g_IsUsingJetpack[client] = false;
}

//Called each frame a client is using a jetpack
JetpackStep(client)
{
    new Float:force = GetConVarFloat(g_Cvar_JetpackForce);
    new bool:force_stop = false;

    //Forward event
    decl Action:result;
    Call_StartForward(g_Forward_OnJetpackStep);
    Call_PushCell(client);
    Call_PushFloatRef(force);
    Call_PushCellRef(force_stop);
    Call_Finish(result);
    if(result == Plugin_Handled) return;

    new buttons = GetClientButtons(client);
    if(!force_stop && IsPlayerAlive(client) && (buttons & IN_JUMP))
    {
        JetpackPush(client, force);
    }
    else
    {
        StopJetpack(client);
    }
}

JetpackPush(client, Float:force)
{
    new Float:vec[3];
    Entity_GetBaseVelocity(client, vec);
    vec[2] += force;
    Entity_SetBaseVelocity(client, vec);
    ChangeEdictState(client);
}

SetEntityMoveCollide(entity, movecollide)
{
    if(g_Offset_movecollide == -1) return;
    SetEntData(entity, g_Offset_movecollide, movecollide);
}