mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-14 10:12:59 +02:00
328 lines
9.7 KiB
C++
328 lines
9.7 KiB
C++
/*
|
|
* InputSourceGameController.cpp, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
|
|
#include "StdInc.h"
|
|
#include "InputSourceGameController.h"
|
|
|
|
#include "InputHandler.h"
|
|
|
|
#include "../CGameInfo.h"
|
|
#include "../gui/CGuiHandler.h"
|
|
#include "../gui/CursorHandler.h"
|
|
#include "../gui/EventDispatcher.h"
|
|
#include "../gui/ShortcutHandler.h"
|
|
|
|
#include "../../lib/CConfigHandler.h"
|
|
|
|
void InputSourceGameController::gameControllerDeleter(SDL_GameController * gameController)
|
|
{
|
|
if(gameController)
|
|
SDL_GameControllerClose(gameController);
|
|
}
|
|
|
|
InputSourceGameController::InputSourceGameController():
|
|
cursorAxisValueX(0),
|
|
cursorAxisValueY(0),
|
|
cursorPlanDisX(0.0),
|
|
cursorPlanDisY(0.0),
|
|
scrollAxisMoved(false),
|
|
scrollStart(Point(0,0)),
|
|
scrollCurrent(Point(0,0)),
|
|
scrollAxisValueX(0),
|
|
scrollAxisValueY(0),
|
|
scrollPlanDisX(0.0),
|
|
scrollPlanDisY(0.0),
|
|
configTriggerThreshold(settings["input"]["controllerTriggerThreshold"].Float()),
|
|
configAxisDeadZone(settings["input"]["controllerAxisDeadZone"].Float()),
|
|
configAxisFullZone(settings["input"]["controllerAxisFullZone"].Float()),
|
|
configAxisSpeed(settings["input"]["controllerAxisSpeed"].Float()),
|
|
configAxisScale(settings["input"]["controllerAxisScale"].Float())
|
|
{
|
|
tryOpenAllGameControllers();
|
|
}
|
|
|
|
void InputSourceGameController::tryOpenAllGameControllers()
|
|
{
|
|
for(int i = 0; i < SDL_NumJoysticks(); ++i)
|
|
if(SDL_IsGameController(i))
|
|
openGameController(i);
|
|
else
|
|
logGlobal->warn("Joystick %d is an unsupported game controller!", i);
|
|
}
|
|
|
|
void InputSourceGameController::openGameController(int index)
|
|
{
|
|
SDL_GameController * controller = SDL_GameControllerOpen(index);
|
|
if(!controller)
|
|
{
|
|
logGlobal->error("Fail to open game controller %d!", index);
|
|
return;
|
|
}
|
|
GameControllerPtr controllerPtr(controller, &gameControllerDeleter);
|
|
|
|
// Need to save joystick index for event. Joystick index may not be equal to index sometimes.
|
|
int joystickIndex = getJoystickIndex(controllerPtr.get());
|
|
if(joystickIndex < 0)
|
|
{
|
|
logGlobal->error("Fail to get joystick index of game controller %d!", index);
|
|
return;
|
|
}
|
|
|
|
if(gameControllerMap.find(joystickIndex) != gameControllerMap.end())
|
|
{
|
|
logGlobal->warn("Game controller with joystick index %d is already opened.", joystickIndex);
|
|
return;
|
|
}
|
|
|
|
gameControllerMap.try_emplace(joystickIndex, std::move(controllerPtr));
|
|
}
|
|
|
|
int InputSourceGameController::getJoystickIndex(SDL_GameController * controller)
|
|
{
|
|
SDL_Joystick * joystick = SDL_GameControllerGetJoystick(controller);
|
|
if(!joystick)
|
|
return -1;
|
|
|
|
SDL_JoystickID instanceID = SDL_JoystickInstanceID(joystick);
|
|
if(instanceID < 0)
|
|
return -1;
|
|
return instanceID;
|
|
}
|
|
|
|
void InputSourceGameController::handleEventDeviceAdded(const SDL_ControllerDeviceEvent & device)
|
|
{
|
|
if(gameControllerMap.find(device.which) != gameControllerMap.end())
|
|
{
|
|
logGlobal->warn("Game controller %d is already opened.", device.which);
|
|
return;
|
|
}
|
|
openGameController(device.which);
|
|
}
|
|
|
|
void InputSourceGameController::handleEventDeviceRemoved(const SDL_ControllerDeviceEvent & device)
|
|
{
|
|
if(gameControllerMap.find(device.which) == gameControllerMap.end())
|
|
{
|
|
logGlobal->warn("Game controller %d is not opened before.", device.which);
|
|
return;
|
|
}
|
|
gameControllerMap.erase(device.which);
|
|
}
|
|
|
|
void InputSourceGameController::handleEventDeviceRemapped(const SDL_ControllerDeviceEvent & device)
|
|
{
|
|
if(gameControllerMap.find(device.which) == gameControllerMap.end())
|
|
{
|
|
logGlobal->warn("Game controller %d is not opened.", device.which);
|
|
return;
|
|
}
|
|
gameControllerMap.erase(device.which);
|
|
openGameController(device.which);
|
|
}
|
|
|
|
double InputSourceGameController::getRealAxisValue(int value) const
|
|
{
|
|
double ratio = static_cast<double>(value) / SDL_JOYSTICK_AXIS_MAX;
|
|
double greenZone = configAxisFullZone - configAxisDeadZone;
|
|
|
|
if (std::abs(ratio) < configAxisDeadZone)
|
|
return 0;
|
|
|
|
double scaledValue = (ratio - configAxisDeadZone) / greenZone;
|
|
double clampedValue = std::clamp(scaledValue, -1.0, +1.0);
|
|
return clampedValue;
|
|
}
|
|
|
|
void InputSourceGameController::dispatchAxisShortcuts(const std::vector<EShortcut> & shortcutsVector, SDL_GameControllerAxis axisID, int axisValue)
|
|
{
|
|
if(getRealAxisValue(axisValue) > configTriggerThreshold)
|
|
{
|
|
if(!pressedAxes.count(axisID))
|
|
{
|
|
GH.events().dispatchShortcutPressed(shortcutsVector);
|
|
pressedAxes.insert(axisID);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(pressedAxes.count(axisID))
|
|
{
|
|
GH.events().dispatchShortcutReleased(shortcutsVector);
|
|
pressedAxes.erase(axisID);
|
|
}
|
|
}
|
|
}
|
|
|
|
void InputSourceGameController::handleEventAxisMotion(const SDL_ControllerAxisEvent & axis)
|
|
{
|
|
tryToConvertCursor();
|
|
|
|
SDL_GameControllerAxis axisID = static_cast<SDL_GameControllerAxis>(axis.axis);
|
|
std::string axisName = SDL_GameControllerGetStringForAxis(axisID);
|
|
|
|
auto axisActions = GH.shortcuts().translateJoystickAxis(axisName);
|
|
auto buttonActions = GH.shortcuts().translateJoystickButton(axisName);
|
|
|
|
for(const auto & action : axisActions)
|
|
{
|
|
switch(action)
|
|
{
|
|
case EShortcut::MOUSE_CURSOR_X:
|
|
cursorAxisValueX = getRealAxisValue(axis.value);
|
|
break;
|
|
case EShortcut::MOUSE_CURSOR_Y:
|
|
cursorAxisValueY = getRealAxisValue(axis.value);
|
|
break;
|
|
case EShortcut::MOUSE_SWIPE_X:
|
|
scrollAxisValueX = getRealAxisValue(axis.value);
|
|
break;
|
|
case EShortcut::MOUSE_SWIPE_Y:
|
|
scrollAxisValueY = getRealAxisValue(axis.value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
dispatchAxisShortcuts(buttonActions, axisID, axis.value);
|
|
}
|
|
|
|
void InputSourceGameController::tryToConvertCursor()
|
|
{
|
|
assert(CCS);
|
|
assert(CCS->curh);
|
|
if(CCS->curh->getShowType() == Cursor::ShowType::HARDWARE)
|
|
{
|
|
const Point & cursorPosition = GH.getCursorPosition();
|
|
CCS->curh->changeCursor(Cursor::ShowType::SOFTWARE);
|
|
CCS->curh->cursorMove(cursorPosition.x, cursorPosition.y);
|
|
GH.input().setCursorPosition(cursorPosition);
|
|
}
|
|
}
|
|
|
|
void InputSourceGameController::handleEventButtonDown(const SDL_ControllerButtonEvent & button)
|
|
{
|
|
std::string buttonName = SDL_GameControllerGetStringForButton(static_cast<SDL_GameControllerButton>(button.button));
|
|
const auto & shortcutsVector = GH.shortcuts().translateJoystickButton(buttonName);
|
|
GH.events().dispatchShortcutPressed(shortcutsVector);
|
|
}
|
|
|
|
void InputSourceGameController::handleEventButtonUp(const SDL_ControllerButtonEvent & button)
|
|
{
|
|
std::string buttonName = SDL_GameControllerGetStringForButton(static_cast<SDL_GameControllerButton>(button.button));
|
|
const auto & shortcutsVector = GH.shortcuts().translateJoystickButton(buttonName);
|
|
GH.events().dispatchShortcutReleased(shortcutsVector);
|
|
}
|
|
|
|
void InputSourceGameController::doCursorMove(int deltaX, int deltaY)
|
|
{
|
|
if(deltaX == 0 && deltaY == 0)
|
|
return;
|
|
const Point & screenSize = GH.screenDimensions();
|
|
const Point & cursorPosition = GH.getCursorPosition();
|
|
int newX = std::min(std::max(cursorPosition.x + deltaX, 0), screenSize.x);
|
|
int newY = std::min(std::max(cursorPosition.y + deltaY, 0), screenSize.y);
|
|
Point targetPosition{newX, newY};
|
|
GH.input().setCursorPosition(targetPosition);
|
|
if(CCS && CCS->curh)
|
|
CCS->curh->cursorMove(GH.getCursorPosition().x, GH.getCursorPosition().y);
|
|
}
|
|
|
|
int InputSourceGameController::getMoveDis(float planDis)
|
|
{
|
|
if(planDis >= 0)
|
|
return std::floor(planDis);
|
|
else
|
|
return std::ceil(planDis);
|
|
}
|
|
|
|
void InputSourceGameController::handleUpdate()
|
|
{
|
|
std::chrono::steady_clock::time_point nowMs = std::chrono::steady_clock::now();
|
|
|
|
if(lastCheckTime == std::chrono::steady_clock::time_point())
|
|
{
|
|
lastCheckTime = nowMs;
|
|
return;
|
|
}
|
|
|
|
int32_t deltaTime = std::chrono::duration_cast<std::chrono::milliseconds>(nowMs - lastCheckTime).count();
|
|
handleCursorUpdate(deltaTime);
|
|
handleScrollUpdate(deltaTime);
|
|
lastCheckTime = nowMs;
|
|
}
|
|
|
|
static double scaleAxis(double value, double power)
|
|
{
|
|
if (value > 0)
|
|
return std::pow(value, power);
|
|
else
|
|
return -std::pow(-value, power);
|
|
}
|
|
|
|
void InputSourceGameController::handleCursorUpdate(int32_t deltaTimeMs)
|
|
{
|
|
float deltaTimeSeconds = static_cast<float>(deltaTimeMs) / 1000;
|
|
|
|
if(vstd::isAlmostZero(cursorAxisValueX))
|
|
cursorPlanDisX = 0;
|
|
else
|
|
cursorPlanDisX += deltaTimeSeconds * configAxisSpeed * scaleAxis(cursorAxisValueX, configAxisScale);
|
|
|
|
if (vstd::isAlmostZero(cursorAxisValueY))
|
|
cursorPlanDisY = 0;
|
|
else
|
|
cursorPlanDisY += deltaTimeSeconds * configAxisSpeed * scaleAxis(cursorAxisValueY, configAxisScale);
|
|
|
|
int moveDisX = getMoveDis(cursorPlanDisX);
|
|
int moveDisY = getMoveDis(cursorPlanDisY);
|
|
cursorPlanDisX -= moveDisX;
|
|
cursorPlanDisY -= moveDisY;
|
|
doCursorMove(moveDisX, moveDisY);
|
|
}
|
|
|
|
void InputSourceGameController::handleScrollUpdate(int32_t deltaTimeMs)
|
|
{
|
|
if(!scrollAxisMoved && isScrollAxisReleased())
|
|
{
|
|
return;
|
|
}
|
|
else if(!scrollAxisMoved && !isScrollAxisReleased())
|
|
{
|
|
scrollAxisMoved = true;
|
|
scrollCurrent = scrollStart = GH.input().getCursorPosition();
|
|
GH.events().dispatchGesturePanningStarted(scrollStart);
|
|
}
|
|
else if(scrollAxisMoved && isScrollAxisReleased())
|
|
{
|
|
GH.events().dispatchGesturePanningEnded(scrollStart, scrollCurrent);
|
|
scrollAxisMoved = false;
|
|
scrollPlanDisX = scrollPlanDisY = 0;
|
|
return;
|
|
}
|
|
float deltaTimeSeconds = static_cast<float>(deltaTimeMs) / 1000;
|
|
scrollPlanDisX += deltaTimeSeconds * configAxisSpeed * scaleAxis(scrollAxisValueX, configAxisScale);
|
|
scrollPlanDisY += deltaTimeSeconds * configAxisSpeed * scaleAxis(scrollAxisValueY, configAxisScale);
|
|
int moveDisX = getMoveDis(scrollPlanDisX);
|
|
int moveDisY = getMoveDis(scrollPlanDisY);
|
|
if(moveDisX != 0 || moveDisY != 0)
|
|
{
|
|
scrollPlanDisX -= moveDisX;
|
|
scrollPlanDisY -= moveDisY;
|
|
scrollCurrent.x += moveDisX;
|
|
scrollCurrent.y += moveDisY;
|
|
Point distance(moveDisX, moveDisY);
|
|
GH.events().dispatchGesturePanning(scrollStart, scrollCurrent, distance);
|
|
}
|
|
}
|
|
|
|
bool InputSourceGameController::isScrollAxisReleased() const
|
|
{
|
|
return vstd::isAlmostZero(scrollAxisValueX) && vstd::isAlmostZero(scrollAxisValueY);
|
|
}
|