Fix incorrect Pitch calculation

Projects/Android/AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 		package="com.drbeef.questzdoom"
-		android:versionCode="13"
-		android:versionName="0.6.0" android:installLocation="auto" >
+		android:versionCode="14"
+		android:versionName="0.7.0" android:installLocation="auto" >
 
 	<!-- Tell the system this app requires OpenGL ES 3.1. -->
 	<uses-feature android:glEsVersion="0x00030001" android:required="true"/>

Projects/Android/jni/QzDoom/QzDoom_SurfaceView.c

@@ -47,7 +47,9 @@ long long global_time;
 float playerHeight;
 float playerYaw;
 bool resetDoomYaw;
+bool resetPreviousPitch;
 float doomYaw;
+float previousPitch;
 float vrFOV;
 vec3_t worldPosition;
 vec3_t hmdPosition;
@@ -1283,6 +1285,7 @@ void VR_Init()
 	//Initialise all our variables
 	playerYaw = 0.0f;
     resetDoomYaw = true;
+	resetPreviousPitch = true;
 	remote_movementSideways = 0.0f;
 	remote_movementForward = 0.0f;
 	remote_movementUp = 0.0f;

Projects/Android/jni/QzDoom/VrCommon.h

@@ -35,6 +35,8 @@ extern float playerHeight;
 extern float playerYaw;
 extern bool resetDoomYaw;
 extern float doomYaw;
+extern bool resetPreviousPitch;
+extern float previousPitch;
 
 extern float vrFOV;
 

Projects/Android/jni/gzdoom-g3.3mgw_mobile/src/gl/stereo3d/gl_oculusquest.cpp

@@ -578,11 +578,18 @@ namespace s3d
 
         // Pitch
         {
-            double viewPitchInDoom = GLRenderer->mAngles.Pitch.Radians();
-            double dPitch =
-                    - DEG2RAD(pitch)
-                    - viewPitchInDoom;
-            G_AddViewPitch(mAngleFromRadians(dPitch));
+            if (resetPreviousPitch)
+            {
+                previousPitch = GLRenderer->mAngles.Pitch.Degrees;
+                resetPreviousPitch = false;
+            }
+
+            double hmdPitchDeltaDegrees = pitch - previousPitch;
+
+            ALOGV("dPitch = %f", hmdPitchDeltaDegrees );
+
+            G_AddViewPitch(mAngleFromRadians(DEG2RAD(-hmdPitchDeltaDegrees)));
+            previousPitch = pitch;
         }
 
         if (gamestate == GS_LEVEL && !getMenuState())

Projects/Android/jni/gzdoom-g3.3mgw_mobile/src/p_setup.cpp

@@ -3807,8 +3807,9 @@ void P_SetupLevel(const char *lumpname, int position, bool newGame)
 		AnnounceGameStart();
 	}
 
-	//Trigger a Yaw recalc in the QuestZDoom code to avoid moving in the wrong direction
+	//Trigger a Yaw/Pitch recalc in the QuestZDoom code to avoid moving in the wrong direction
 	resetDoomYaw = true;
+	resetPreviousPitch = true;
 
 	// This check was previously done at run time each time the heightsec was checked.
 	// However, since 3D floors are static data, we can easily precalculate this and store it in the sector's flags for quick access.

Projects/Android/jni/gzdoom-g3.3mgw_mobile/src/version.h

@@ -41,7 +41,7 @@ const char *GetVersionString();
 
 /** Lots of different version numbers **/
 
-#define VERSIONSTR "DrBeef's QuestZDoom-0.6.0 (LZDoom 3.83a)"
+#define VERSIONSTR "DrBeef's QuestZDoom-0.7.0 (LZDoom 3.83a)"
 
 // The version as seen in the Windows resource
 #define RC_FILEVERSION 3,83,1