Accelerometer

cocos2dx/platform/android/CCAccelerometer.cpp

@@ -22,7 +22,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/
 #include "CCAccelerometer.h"
-#include "jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"
+#include "nativeactivity.h"
 #include <stdio.h>
 #include <android/log.h>
 
@@ -45,19 +45,17 @@ namespace cocos2d
     {
         _function = function;
 
-        if (_function)
+        if (_function) {
-        {        
+            enableAccelerometer();
-            // enableAccelerometerJNI();
         }
-        else
+        else {
-        {
+            disableAccelerometer();
-            // disableAccelerometerJNI();
         }
     }
 
     void Accelerometer::setAccelerometerInterval(float interval) 
     {
-        // setAccelerometerIntervalJNI(interval);
+        setAccelerometerInterval(interval);
     }
 
 

cocos2dx/platform/android/jni/Java_org_cocos2dx_lib_Cocos2dxAccelerometer.cpp

@@ -9,7 +9,5 @@ using namespace cocos2d;
 
 extern "C" {
     JNIEXPORT void JNICALL Java_org_cocos2dx_lib_Cocos2dxAccelerometer_onSensorChanged(JNIEnv*  env, jobject thiz, jfloat x, jfloat y, jfloat z, jlong timeStamp) {
-        Director* pDirector = Director::getInstance();
-        pDirector->getAccelerometer()->update(x, y, z, timeStamp);
     }    
 }

cocos2dx/platform/android/nativeactivity.cpp

@@ -1,3 +1,5 @@
+#include "nativeactivity.h"
+
 #include <jni.h>
 #include <errno.h>
 
@@ -15,8 +17,14 @@
 #include "CCEventType.h"
 #include "support/CCNotificationCenter.h"
 #include "CCFileUtilsAndroid.h"
+#include "CCAccelerometer.h"
 #include "jni/JniHelper.h"
 
+#include "CCEGLView.h"
+#include "draw_nodes/CCDrawingPrimitives.h"
+#include "shaders/CCShaderCache.h"
+#include "textures/CCTextureCache.h"
+
 #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "cocos2dx/nativeactivity.cpp", __VA_ARGS__))
 #define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "cocos2dx/nativeactivity.cpp", __VA_ARGS__))
 
@@ -26,6 +34,8 @@
 #define LOG_EVENTS_DEBUG(...)
 // #define LOG_EVENTS_DEBUG(...)  ((void)__android_log_print(ANDROID_LOG_INFO, "cocos2dx/nativeactivity.cpp", __VA_ARGS__))
 
+void cocos_android_app_init(void);
+
 /**
  * Our saved state data.
  */
@@ -54,12 +64,7 @@ struct engine {
     struct saved_state state;
 };
 
-#include "CCEGLView.h"
+static struct engine engine;
-#include "draw_nodes/CCDrawingPrimitives.h"
-#include "shaders/CCShaderCache.h"
-#include "textures/CCTextureCache.h"
-
-void cocos_android_app_init(void);
 
 typedef struct cocos_dimensions {
     int w;
@@ -368,6 +373,36 @@ static int32_t engine_handle_input(struct android_app* app, AInputEvent* event)
     return 0;
 }
 
+void enableAccelerometer(void) {
+    LOGI("enableAccelerometer()");
+
+    if (engine.accelerometerSensor != NULL) {
+        ASensorEventQueue_enableSensor(engine.sensorEventQueue,
+                                       engine.accelerometerSensor);
+
+        // Set a default sample rate
+        // We'd like to get 60 events per second (in us).
+        ASensorEventQueue_setEventRate(engine.sensorEventQueue,
+                                       engine.accelerometerSensor, (1000L/60)*1000);
+    }
+}
+
+void disableAccelerometer(void) {
+    LOGI("disableAccelerometer()");
+
+    if (engine.accelerometerSensor != NULL) {
+        ASensorEventQueue_disableSensor(engine.sensorEventQueue,
+                                        engine.accelerometerSensor);
+    }
+}
+
+void setAccelerometerInterval(float interval) {
+    LOGI("setAccelerometerInterval(%f)", interval);
+        // We'd like to get 60 events per second (in us).
+        ASensorEventQueue_setEventRate(engine.sensorEventQueue,
+                                       engine.accelerometerSensor, interval * 1000000L);
+}
+
 /**
  * Process the next main command.
  */
@@ -412,28 +447,12 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
             engine_term_display(engine);
             break;
         case APP_CMD_GAINED_FOCUS:
-            // When our app gains focus, we start monitoring the accelerometer.
-            if (engine->accelerometerSensor != NULL) {
-                ASensorEventQueue_enableSensor(engine->sensorEventQueue,
-                        engine->accelerometerSensor);
-                // We'd like to get 60 events per second (in us).
-                ASensorEventQueue_setEventRate(engine->sensorEventQueue,
-                        engine->accelerometerSensor, (1000L/60)*1000);
-            }
-
             if (cocos2d::Director::getInstance()->getOpenGLView()) {
                 cocos2d::Application::getInstance()->applicationWillEnterForeground();
             }
 
             break;
         case APP_CMD_LOST_FOCUS:
-            // When our app loses focus, we stop monitoring the accelerometer.
-            // This is to avoid consuming battery while not being used.
-            if (engine->accelerometerSensor != NULL) {
-                ASensorEventQueue_disableSensor(engine->sensorEventQueue,
-                        engine->accelerometerSensor);
-            }
-
             cocos2d::Application::getInstance()->applicationDidEnterBackground();
             cocos2d::NotificationCenter::getInstance()->postNotification(EVENT_COME_TO_BACKGROUND, NULL);
 
@@ -450,7 +469,6 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
  * event loop for receiving input events and doing other things.
  */
 void android_main(struct android_app* state) {
-    struct engine engine;
 
     // Make sure glue isn't stripped.
     app_dummy();
@@ -498,7 +516,14 @@ void android_main(struct android_app* state) {
                     ASensorEvent event;
                     while (ASensorEventQueue_getEvents(engine.sensorEventQueue,
                             &event, 1) > 0) {
-                        LOG_RENDER_DEBUG("accelerometer: x=%f y=%f z=%f",
+
+                        cocos2d::Director* pDirector = cocos2d::Director::getInstance();
+                        pDirector->getAccelerometer()->update(event.acceleration.x,
+                                                              event.acceleration.y,
+                                                              event.acceleration.z,
+                                                              0);
+
+                        LOG_EVENTS_DEBUG("accelerometer: x=%f y=%f z=%f",
                                 event.acceleration.x, event.acceleration.y,
                                 event.acceleration.z);
                     }
@@ -508,6 +533,9 @@ void android_main(struct android_app* state) {
             // Check if we are exiting.
             if (state->destroyRequested != 0) {
                 engine_term_display(&engine);
+
+                memset(&engine, 0, sizeof(engine));
+
                 return;
             }
         }

cocos2dx/platform/android/nativeactivity.h

@@ -0,0 +1,12 @@
+#ifndef __COCOSNATIVEACTIVITY_H__
+#define __COCOSNATIVEACTIVITY_H__
+
+/**
+ * This is the interface to the Android native activity
+ */
+
+void enableAccelerometer(void);
+void disableAccelerometer(void);
+void setAccelerometerInterval(float interval);
+
+#endif // __COCOSNATIVEACTIVITY_H__