From a288c598413e3d9ab52999bd009484bd19b3fce6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Thu, 16 Feb 2023 10:33:47 +0100
Subject: [PATCH] Simplify tilt, step 1

---
 Core/TiltEventProcessor.cpp | 18 +++++++++++-------
 Core/TiltEventProcessor.h   | 11 +----------
 UI/NativeApp.cpp            |  4 +---
 3 files changed, 13 insertions(+), 20 deletions(-)

diff --git a/Core/TiltEventProcessor.cpp b/Core/TiltEventProcessor.cpp
index 536c8b90d81c..6bf962c6c703 100644
--- a/Core/TiltEventProcessor.cpp
+++ b/Core/TiltEventProcessor.cpp
@@ -19,6 +19,13 @@ static u32 tiltButtonsDown = 0;
 float rawTiltAnalogX;
 float rawTiltAnalogY;
 
+// Represents a generic Tilt event
+struct Tilt {
+	Tilt() : x_(0), y_(0) {}
+	Tilt(const float x, const float y) : x_(x), y_(y) {}
+	float x_, y_;
+};
+
 // These functions generate tilt events given the current Tilt amount,
 // and the deadzone radius.
 void GenerateAnalogStickEvent(const Tilt &tilt);
@@ -51,7 +58,7 @@ inline Tilt DampenTilt(const Tilt &tilt, float deadzone, float xSensitivity, flo
 	);
 }
 
-Tilt GenTilt(bool landscape, float calibrationAngle, float x, float y, float z, bool invertX, bool invertY, float xSensitivity, float ySensitivity) {
+void ProcessTilt(bool landscape, float calibrationAngle, float x, float y, float z, bool invertX, bool invertY, float xSensitivity, float ySensitivity) {
 	if (landscape) {
 		std::swap(x, y);
 	} else {
@@ -78,18 +85,15 @@ Tilt GenTilt(bool landscape, float calibrationAngle, float x, float y, float z,
 	}
 
 	// finally, dampen the tilt according to our curve.
-	return DampenTilt(transformedTilt, deadzone, xSensitivity, ySensitivity);
-}
-
-void TranslateTiltToInput(const Tilt &tilt) {
-	rawTiltAnalogX = tilt.x_;
-	rawTiltAnalogY = tilt.y_;
+	Tilt tilt = DampenTilt(transformedTilt, deadzone, xSensitivity, ySensitivity);
 
 	switch (g_Config.iTiltInputType) {
 	case TILT_NULL:
 		break;
 
 	case TILT_ANALOG:
+		rawTiltAnalogX = tilt.x_;
+		rawTiltAnalogY = tilt.y_;
 		GenerateAnalogStickEvent(tilt);
 		break;
 
diff --git a/Core/TiltEventProcessor.h b/Core/TiltEventProcessor.h
index fb7156b9a2bb..3eda969e17c4 100644
--- a/Core/TiltEventProcessor.h
+++ b/Core/TiltEventProcessor.h
@@ -2,18 +2,9 @@
 
 namespace TiltEventProcessor {
 
-// Represents a generic Tilt event
-struct Tilt {
-	Tilt() : x_(0), y_(0) {}
-	Tilt(const float x, const float y) : x_(x), y_(y) {}
-	float x_, y_;
-};
-
 // generates a tilt in the correct coordinate system based on
 // calibration. x, y, z is the current accelerometer reading (with no conversion).
-Tilt GenTilt(bool landscape, const float calibrationAngle, float x, float y, float z, bool invertX, bool invertY, float xSensitivity, float ySensitivity);
-
-void TranslateTiltToInput(const Tilt &tilt);
+void ProcessTilt(bool landscape, const float calibrationAngle, float x, float y, float z, bool invertX, bool invertY, float xSensitivity, float ySensitivity);
 void ResetTiltEvents();
 
 // Lets you preview the amount of tilt in TiltAnalogSettingsScreen.
diff --git a/UI/NativeApp.cpp b/UI/NativeApp.cpp
index bd3a062f8272..50aa992c8b5f 100644
--- a/UI/NativeApp.cpp
+++ b/UI/NativeApp.cpp
@@ -1404,11 +1404,9 @@ void NativeAxis(const AxisInput &axis) {
 	// see [http://developer.android.com/guide/topics/sensors/sensors_overview.html] for details
 	bool landscape = dp_yres < dp_xres;
 	// now transform out current tilt to the calibrated coordinate system
-	Tilt trueTilt = GenTilt(landscape, tiltBaseAngleY, tiltX, tiltY, tiltZ,
+	ProcessTilt(landscape, tiltBaseAngleY, tiltX, tiltY, tiltZ,
 		g_Config.bInvertTiltX, g_Config.bInvertTiltY,
 		xSensitivity, ySensitivity);
-
-	TranslateTiltToInput(trueTilt);
 }
 
 void NativeMessageReceived(const char *message, const char *value) {