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Gamepad controller axis deadzone low filter

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Added gamepad controller axis deadzone low filter, removing unnecessary spam from controller analog sticks natural jitter.
Base filter set default at value 1000. Tested with multiple gamepads connected at the same time (Sony PS3).
This commit is contained in:
Nilsen Filc
2015-07-17 22:30:13 +02:00
parent 0e585e54c7
commit 0478a54e37
1 changed files with 29 additions and 1 deletions
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30
project/src/backend/sdl/SDLApplication.cpp
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@@ -15,7 +15,8 @@ namespace lime {
AutoGCRoot* Application::callback = 0;
SDLApplication* SDLApplication::currentApplication = 0;
std::map<int, std::map<int, int> > gamepadsAxisMap;
const int analogAxisDeadZone = 1000;
SDLApplication::SDLApplication () {
@@ -239,9 +240,36 @@ namespace lime {
case SDL_CONTROLLERAXISMOTION:
if (gamepadsAxisMap[event->caxis.which].empty()) {
gamepadsAxisMap[event->caxis.which][event->caxis.axis] = event->caxis.value;
}
else if (gamepadsAxisMap[event->caxis.which][event->caxis.axis] == event->caxis.value) {
break;
}
gamepadEvent.type = AXIS_MOVE;
gamepadEvent.axis = event->caxis.axis;
gamepadEvent.id = event->caxis.which;
if (event->caxis.value > -analogAxisDeadZone && event->caxis.value < analogAxisDeadZone) {
if (gamepadsAxisMap[event->caxis.which][event->caxis.axis] != 0) {
gamepadsAxisMap[event->caxis.which][event->caxis.axis] = 0;
gamepadEvent.axisValue = 0;
GamepadEvent::Dispatch (&gamepadEvent);
}
break;
}
gamepadsAxisMap[event->caxis.which][event->caxis.axis] = event->caxis.value;
gamepadEvent.axisValue = event->caxis.value / 32768.0;
GamepadEvent::Dispatch (&gamepadEvent);