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Add magnetometer sensor support for Android

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This commit is contained in:
fluffrabbit
2016-05-27 14:29:37 -03:00
committed by George Marques
parent eb7227a20b
commit 4877b714b3
11 changed files with 76 additions and 6 deletions
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31
platform/android/godot_android.cpp
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@@ -313,6 +313,7 @@ struct engine {
ASensorManager* sensorManager;
const ASensor* accelerometerSensor;
const ASensor* magnetometerSensor;
ASensorEventQueue* sensorEventQueue;
bool display_active;
@@ -735,16 +736,29 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
ASensorEventQueue_setEventRate(engine->sensorEventQueue,
engine->accelerometerSensor, (1000L/60)*1000);
}
// Also start monitoring the magnetometer.
if (engine->magnetometerSensor != NULL) {
ASensorEventQueue_enableSensor(engine->sensorEventQueue,
engine->magnetometerSensor);
// We'd like to get 60 events per second (in us).
ASensorEventQueue_setEventRate(engine->sensorEventQueue,
engine->magnetometerSensor, (1000L/60)*1000);
}
engine->animating = 1;
break;
case APP_CMD_LOST_FOCUS:
// When our app loses focus, we stop monitoring the accelerometer.
// When our app loses focus, we stop monitoring the sensors.
// This is to avoid consuming battery while not being used.
if (engine->accelerometerSensor != NULL) {
ASensorEventQueue_disableSensor(engine->sensorEventQueue,
engine->accelerometerSensor);
}
if (engine->magnetometerSensor != NULL) {
ASensorEventQueue_disableSensor(engine->sensorEventQueue,
engine->magnetometerSensor);
}
// Also stop animating.
engine->animating = 0;
engine_draw_frame(engine);
@@ -768,10 +782,12 @@ void android_main(struct android_app* state) {
FileAccessAndroid::asset_manager=state->activity->assetManager;
// Prepare to monitor accelerometer
// Prepare to monitor sensors
engine.sensorManager = ASensorManager_getInstance();
engine.accelerometerSensor = ASensorManager_getDefaultSensor(engine.sensorManager,
ASENSOR_TYPE_ACCELEROMETER);
ASENSOR_TYPE_ACCELEROMETER);
engine.magnetometerSensor = ASensorManager_getDefaultSensor(engine.sensorManager,
ASENSOR_TYPE_MAGNETIC_FIELD);
engine.sensorEventQueue = ASensorManager_createEventQueue(engine.sensorManager,
state->looper, LOOPER_ID_USER, NULL, NULL);
@@ -812,16 +828,21 @@ void android_main(struct android_app* state) {
// If a sensor has data, process it now.
// LOGI("events\n");
if (ident == LOOPER_ID_USER) {
if (engine.accelerometerSensor != NULL) {
if (engine.accelerometerSensor != NULL || engine.magnetometerSensor != NULL) {
ASensorEvent event;
while (ASensorEventQueue_getEvents(engine.sensorEventQueue,
&event, 1) > 0) {
if (engine.os) {
if (event.acceleration != NULL) {
engine.os->process_accelerometer(Vector3(event.acceleration.x, event.acceleration.y,
event.acceleration.z));
}
if (event.magnetic != NULL) {
engine.os->process_magnetometer(Vector3(event.magnetic.x, event.magnetic.y,
event.magnetic.z));
}
}
}