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Added original SDK code for Alien Swarm.
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Scott Ehlert
178
public/inputsystem/iinputsystem.h
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178
public/inputsystem/iinputsystem.h
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//===== Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ======//
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//
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// Purpose:
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//
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//===========================================================================//
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#ifndef IINPUTSYSTEM_H
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#define IINPUTSYSTEM_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/platform.h"
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#include "tier0/platwindow.h"
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#include "appframework/IAppSystem.h"
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#include "inputsystem/InputEnums.h"
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#include "inputsystem/ButtonCode.h"
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#include "inputsystem/AnalogCode.h"
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///-----------------------------------------------------------------------------
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/// A handle to a cursor icon
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///-----------------------------------------------------------------------------
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DECLARE_POINTER_HANDLE( InputCursorHandle_t );
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#define INPUT_CURSOR_HANDLE_INVALID ( (InputCursorHandle_t)0 )
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///-----------------------------------------------------------------------------
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/// An enumeration describing well-known cursor icons
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///-----------------------------------------------------------------------------
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enum InputStandardCursor_t
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{
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INPUT_CURSOR_NONE = 0,
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INPUT_CURSOR_ARROW,
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INPUT_CURSOR_IBEAM,
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INPUT_CURSOR_HOURGLASS,
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INPUT_CURSOR_CROSSHAIR,
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INPUT_CURSOR_WAITARROW,
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INPUT_CURSOR_UP,
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INPUT_CURSOR_SIZE_NW_SE,
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INPUT_CURSOR_SIZE_NE_SW,
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INPUT_CURSOR_SIZE_W_E,
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INPUT_CURSOR_SIZE_N_S,
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INPUT_CURSOR_SIZE_ALL,
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INPUT_CURSOR_NO,
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INPUT_CURSOR_HAND,
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INPUT_CURSOR_COUNT
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};
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///-----------------------------------------------------------------------------
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/// Main interface for input. This is a low-level interface, creating an
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/// OS-independent queue of low-level input events which were sampled since
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/// the last call to PollInputState. It also contains facilities for cursor
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/// control and creation.
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///-----------------------------------------------------------------------------
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abstract_class IInputSystem : public IAppSystem
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{
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public:
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/// Attach, detach input system from a particular window
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/// This window should be the root window for the application
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/// Only 1 window should be attached at any given time.
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virtual void AttachToWindow( void* hWnd ) = 0;
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virtual void DetachFromWindow( ) = 0;
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/// Enables/disables input. PollInputState will not update current
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/// button/analog states when it is called if the system is disabled.
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virtual void EnableInput( bool bEnable ) = 0;
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/// Enables/disables the windows message pump. PollInputState will not
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/// Peek/Dispatch messages if this is disabled
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virtual void EnableMessagePump( bool bEnable ) = 0;
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/// Polls the current input state
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virtual void PollInputState() = 0;
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/// Gets the time of the last polling in ms
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virtual int GetPollTick() const = 0;
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/// Is a button down? "Buttons" are binary-state input devices (mouse buttons, keyboard keys)
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virtual bool IsButtonDown( ButtonCode_t code ) const = 0;
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/// Returns the tick at which the button was pressed and released
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virtual int GetButtonPressedTick( ButtonCode_t code ) const = 0;
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virtual int GetButtonReleasedTick( ButtonCode_t code ) const = 0;
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/// Gets the value of an analog input device this frame
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/// Includes joysticks, mousewheel, mouse
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virtual int GetAnalogValue( AnalogCode_t code ) const = 0;
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/// Gets the change in a particular analog input device this frame
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/// Includes joysticks, mousewheel, mouse
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virtual int GetAnalogDelta( AnalogCode_t code ) const = 0;
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/// Returns the input events since the last poll
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virtual int GetEventCount() const = 0;
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virtual const InputEvent_t* GetEventData( ) const = 0;
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/// Posts a user-defined event into the event queue; this is expected
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/// to be called in overridden wndprocs connected to the root panel.
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virtual void PostUserEvent( const InputEvent_t &event ) = 0;
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/// Returns the number of joysticks
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virtual int GetJoystickCount() const = 0;
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/// Enable/disable joystick, it has perf costs
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virtual void EnableJoystickInput( int nJoystick, bool bEnable ) = 0;
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/// Enable/disable diagonal joystick POV (simultaneous POV buttons down)
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virtual void EnableJoystickDiagonalPOV( int nJoystick, bool bEnable ) = 0;
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/// Sample the joystick and append events to the input queue
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virtual void SampleDevices( void ) = 0;
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// FIXME: Currently force-feedback is only supported on the Xbox 360
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virtual void SetRumble( float fLeftMotor, float fRightMotor, int userId = INVALID_USER_ID ) = 0;
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virtual void StopRumble( int userId = INVALID_USER_ID ) = 0;
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/// Resets the input state
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virtual void ResetInputState() = 0;
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/// Sets a player as the primary user - all other controllers will be ignored.
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virtual void SetPrimaryUserId( int userId ) = 0;
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/// Convert back + forth between ButtonCode/AnalogCode + strings
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virtual const char *ButtonCodeToString( ButtonCode_t code ) const = 0;
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virtual const char *AnalogCodeToString( AnalogCode_t code ) const = 0;
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virtual ButtonCode_t StringToButtonCode( const char *pString ) const = 0;
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virtual AnalogCode_t StringToAnalogCode( const char *pString ) const = 0;
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/// Sleeps until input happens. Pass a negative number to sleep infinitely
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virtual void SleepUntilInput( int nMaxSleepTimeMS = -1 ) = 0;
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/// Convert back + forth between virtual codes + button codes
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// FIXME: This is a temporary piece of code
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virtual ButtonCode_t VirtualKeyToButtonCode( int nVirtualKey ) const = 0;
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virtual int ButtonCodeToVirtualKey( ButtonCode_t code ) const = 0;
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virtual ButtonCode_t ScanCodeToButtonCode( int lParam ) const = 0;
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/// How many times have we called PollInputState?
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virtual int GetPollCount() const = 0;
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/// Sets the cursor position
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virtual void SetCursorPosition( int x, int y ) = 0;
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/// Tells the input system to generate UI-related events, defined
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/// in inputsystem/inputenums.h (see IE_FirstUIEvent)
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/// We could have multiple clients that care about UI-related events
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/// so we refcount the clients with an Add/Remove strategy. If there
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/// are no interested clients, the UI events are not generated
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virtual void AddUIEventListener() = 0;
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virtual void RemoveUIEventListener() = 0;
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/// Returns the currently attached window
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virtual PlatWindow_t GetAttachedWindow() const = 0;
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/// Creates a cursor using one of the well-known cursor icons
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virtual InputCursorHandle_t GetStandardCursor( InputStandardCursor_t id ) = 0;
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/// Loads a cursor defined in a file
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virtual InputCursorHandle_t LoadCursorFromFile( const char *pFileName, const char *pPathID = NULL ) = 0;
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/// Sets the cursor icon
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virtual void SetCursorIcon( InputCursorHandle_t hCursor ) = 0;
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/// Gets the cursor position
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virtual void GetCursorPosition( int *pX, int *pY ) = 0;
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/// Mouse capture
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virtual void EnableMouseCapture( PlatWindow_t hWnd ) = 0;
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virtual void DisableMouseCapture() = 0;
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};
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DECLARE_TIER2_INTERFACE( IInputSystem, g_pInputSystem );
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#endif // IINPUTSYSTEM_H
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