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o3de/Code/Framework/AzFramework/AzFramework/CommandLine/CommandRegistrationBus.h

69 lines
2.6 KiB
C++

/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
#pragma once
#include <AzCore/EBus/EBus.h>
namespace AzFramework
{
/** Standard results from a command callback function
*/
enum class CommandResult
{
Success,
Error,
ErrorWrongNumberOfArguments,
ErrorCommandNotFound,
};
/** The command callback signature
*/
using CommandFunction = AZStd::function<CommandResult(const AZStd::vector<AZStd::string_view>& args)>;
/** Flags to combine for a command to describe its behavior in the command callback system
* Note: the command flag values should match "enum EVarFlags" values inside IConsole.h
*/
enum CommandFlags : AZ::u32
{
NoValue = 0x00000000, // the default no flags value
Cheat = 0x00000002, // a command that is a game cheat
Development = 0x00000004, // registered only for non release builds
Restricted = 0x00080000, // a visible command and usable in restricted mode
Invisible = 0x00100000, // invisible to the user when listing commands
BlockFrame = 0x00400000, // blocks the execution of console commands for one frame
};
/** A command registration system to register console commands
*/
class CommandRegistration
: public AZ::EBusTraits
{
public:
//////////////////////////////////////////////////////////////////////////
// EBusTraits overrides
static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
//////////////////////////////////////////////////////////////////////////
/** Adds a command callback function to be executed with a string identifier
*/
virtual bool RegisterCommand(AZStd::string_view identifier, AZStd::string_view helpText, AZ::u32 commandFlags, CommandFunction callback) = 0;
/** Removes a command (using its identifier)
*/
virtual bool UnregisterCommand(AZStd::string_view identifier) = 0;
};
using CommandRegistrationBus = AZ::EBus<CommandRegistration>;
} // namespace AzFramework