vex::InputSystem Class Reference

Input system class responsible for handling input events and updating input components. More...

#include <InputSystem.hpp>

Classes
struct	KeyState
	Key state structure. Used to track the state of keyboard keys needed forr held state. More...

Public Member Functions
	InputSystem (vex::Registry &registry, SDL_Window *window)
	Constructor for InputSystem.
void	setInputMode (InputMode mode)
	Sets the input processing mode.
InputMode	getInputMode () const
	Gets the current input mode.
void	processEvent (const SDL_Event &event, float deltaTime)
	Processes raw SDL events and maps them to Game Component actions.
void	update (float deltaTime)
	Per-frame update for continuous input states.

Private Attributes
vex::Registry &	m_registry
SDL_Window *	m_window
InputMode	m_inputMode
std::unordered_map< SDL_Scancode, KeyState >	keyStates
std::unordered_map< SDL_GamepadButton, KeyState >	gamepadButtonStates
std::unordered_map< SDL_GamepadAxis, float >	gamepadAxisStates

Detailed Description

Input system class responsible for handling input events and updating input components.

Definition at line 30 of file InputSystem.hpp.

Constructor & Destructor Documentation

InputSystem()

vex::InputSystem::InputSystem	(	vex::Registry &	registry,
		SDL_Window *	window )

Constructor for InputSystem.

Parameters

vex::Registry&	registry Reference to the entity registry.
SDL_Window*	window Pointer to the SDL window.

Definition at line 10 of file InputSystem.cpp.

Member Function Documentation

getInputMode()

InputMode vex::InputSystem::getInputMode ( ) const

inline

Gets the current input mode.

Returns

InputMode The current input mode.

Definition at line 46 of file InputSystem.hpp.

processEvent()

void vex::InputSystem::processEvent	(	const SDL_Event &	event,
		float	deltaTime )

Processes raw SDL events and maps them to Game Component actions.

Handles:

• Keyboard: Updates internal keyStates and triggers InputComponent bindings (Pressed/Released/Held).
• Mouse: Accumulates relative motion deltas for axis bindings.
• Gamepad: Handles button presses and axis motion (normalized to 0.0-1.0).

  Parameters

  const	SDL_Event& event - The raw SDL_Event to parse.
  float	deltaTime - Time elapsed, passed to action callbacks.

Definition at line 32 of file InputSystem.cpp.

setInputMode()

void vex::InputSystem::setInputMode

(

InputMode

mode

)

Sets the input processing mode.

• Game: Captures the mouse (Relative Mode) and hides the cursor via SDL_SetWindowRelativeMouseMode.
• UI: Releases the mouse and shows the cursor.

  Parameters

  InputMode

  mode - The desired InputMode.

Definition at line 21 of file InputSystem.cpp.

update()

void vex::InputSystem::update

(

float

deltaTime

)

Per-frame update for continuous input states.

Specifically checks for and triggers actions bound to InputActionState::Held for both Keyboard and Gamepad buttons.

Parameters

float

deltaTime - Time elapsed since last frame.

Definition at line 89 of file InputSystem.cpp.

Member Data Documentation

gamepadAxisStates

std::unordered_map<SDL_GamepadAxis, float> vex::InputSystem::gamepadAxisStates

private

Definition at line 74 of file InputSystem.hpp.

gamepadButtonStates

std::unordered_map<SDL_GamepadButton, KeyState> vex::InputSystem::gamepadButtonStates

private

Definition at line 73 of file InputSystem.hpp.

keyStates

std::unordered_map<SDL_Scancode, KeyState> vex::InputSystem::keyStates

private

Definition at line 72 of file InputSystem.hpp.

m_inputMode

InputMode vex::InputSystem::m_inputMode

private

Definition at line 71 of file InputSystem.hpp.

m_registry

vex::Registry& vex::InputSystem::m_registry

private

Definition at line 69 of file InputSystem.hpp.

m_window

SDL_Window* vex::InputSystem::m_window

private

Definition at line 70 of file InputSystem.hpp.

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The documentation for this class was generated from the following files:

• Core/include/components/InputSystem.hpp
• Core/src/components/InputSystem.cpp