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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // | ||
| // Created by Bill Robinson on 19/12/2024. | ||
| // | ||
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| #include "SdlGameController.h" | ||
| #include "GameState.h" | ||
| #include "Player.h" | ||
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| namespace MagnumGame { | ||
| static SDL_GameController *findController() { | ||
| for (int i = 0; i < SDL_NumJoysticks(); i++) { | ||
| if (SDL_IsGameController(i)) { | ||
| return SDL_GameControllerOpen(i); | ||
| } | ||
| } | ||
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| return nullptr; | ||
| } | ||
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| SdlGameController::SdlGameController(Containers::Pointer<GameState> &gameState) | ||
| : _controller(findController()), | ||
| _gameState(gameState) { | ||
| } | ||
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| SdlGameController::~SdlGameController() { | ||
| if (_controller) { | ||
| SDL_GameControllerClose(_controller); | ||
| } | ||
| } | ||
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| Vector2 SdlGameController::readAxisVector(::SDL_GameControllerAxis xAxis, ::SDL_GameControllerAxis yAxis) const { | ||
| Vector2 input{ | ||
| static_cast<float>(SDL_GameControllerGetAxis(_controller, xAxis)) / (1 << 15), | ||
| static_cast<float>(SDL_GameControllerGetAxis(_controller, yAxis)) / (1 << 15) | ||
| }; | ||
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| if (abs(input.x()) < JoystickDeadzone) { | ||
| input.x() = 0; | ||
| } | ||
| if (abs(input.y()) < JoystickDeadzone) { | ||
| input.y() = 0; | ||
| } | ||
| return input; | ||
| } | ||
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| Vector2 SdlGameController::getPlayerDirectionalControlVector() const { | ||
| if (_controller) { | ||
| auto vector = readAxisVector(SDL_CONTROLLER_AXIS_LEFTX, SDL_CONTROLLER_AXIS_LEFTY); | ||
| vector.y() = -vector.y(); | ||
| return vector; | ||
| } | ||
| return {0, 0}; | ||
| } | ||
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| Vector2 SdlGameController::getCameraDirectionalControlVector() const { | ||
| if (_controller) { | ||
| return readAxisVector(SDL_CONTROLLER_AXIS_RIGHTX, SDL_CONTROLLER_AXIS_RIGHTY); | ||
| } | ||
| return {0, 0}; | ||
| } | ||
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| bool SdlGameController::handleEvent(const SDL_Event &event) { | ||
| switch (event.type) { | ||
| case SDL_CONTROLLERDEVICEADDED: | ||
| if (!_controller) { | ||
| _controller = SDL_GameControllerOpen(event.cdevice.which); | ||
| return true; | ||
| } | ||
| break; | ||
| case SDL_CONTROLLERDEVICEREMOVED: | ||
| if (_controller && event.cdevice.which == SDL_JoystickInstanceID(SDL_GameControllerGetJoystick(_controller))) { | ||
| SDL_GameControllerClose(_controller); | ||
| _controller = findController(); | ||
| return true; | ||
| } | ||
| break; | ||
| case SDL_CONTROLLERBUTTONDOWN: | ||
| if (event.cbutton.button == SDL_CONTROLLER_BUTTON_A) { | ||
| _gameState->getPlayer()->tryJump(); | ||
| return true; | ||
| } | ||
| break; | ||
| } | ||
| return false; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| #pragma once | ||
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| #include <SDL_events.h> | ||
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| #include "MagnumGameCommon.h" | ||
| #include <Magnum/Math/Vector2.h> | ||
| #include <SDL2/SDL_gamecontroller.h> | ||
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| namespace MagnumGame { | ||
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| class GameState; | ||
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| class SdlGameController { | ||
| public: | ||
| explicit SdlGameController(Containers::Pointer<GameState>& gameState); | ||
| ~SdlGameController(); | ||
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| Vector2 readAxisVector(SDL_GameControllerAxis xAxis, SDL_GameControllerAxis yAxis) const; | ||
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| Vector2 getPlayerDirectionalControlVector() const; | ||
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| Vector2 getCameraDirectionalControlVector() const; | ||
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| bool handleEvent(const SDL_Event &event); | ||
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| static inline float JoystickDeadzone = 0.05f; | ||
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| private: | ||
| SDL_GameController* _controller; | ||
| Containers::Pointer<GameState>& _gameState; | ||
| }; | ||
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| } | ||
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