From 64da0f54e416c413d7075e973d4e403a8690d76e Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sun, 20 Dec 2015 23:16:45 -0800
Subject: [PATCH] Add L/R trigger button tilt support.

---
 UI/GameSettingsScreen.cpp |  2 +-
 UI/TiltEventProcessor.cpp | 23 +++++++++++++++++++++++
 UI/TiltEventProcessor.h   |  6 ++++--
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/UI/GameSettingsScreen.cpp b/UI/GameSettingsScreen.cpp
index e3783bfb3f..cdcfe4aff3 100644
--- a/UI/GameSettingsScreen.cpp
+++ b/UI/GameSettingsScreen.cpp
@@ -387,7 +387,7 @@ void GameSettingsScreen::CreateViews() {
 
 #if defined(MOBILE_DEVICE)
 	controlsSettings->Add(new CheckBox(&g_Config.bHapticFeedback, co->T("HapticFeedback", "Haptic Feedback (vibration)")));
-	static const char *tiltTypes[] = { "None (Disabled)", "Analog Stick", "D-PAD", "PSP Action Buttons"};
+	static const char *tiltTypes[] = { "None (Disabled)", "Analog Stick", "D-PAD", "PSP Action Buttons", "L/R Trigger Buttons"};
 	controlsSettings->Add(new PopupMultiChoice(&g_Config.iTiltInputType, co->T("Tilt Input Type"), tiltTypes, 0, ARRAY_SIZE(tiltTypes), co->GetName(), screenManager()))->OnClick.Handle(this, &GameSettingsScreen::OnTiltTypeChange);
 
 	Choice *customizeTilt = controlsSettings->Add(new Choice(co->T("Customize tilt")));
diff --git a/UI/TiltEventProcessor.cpp b/UI/TiltEventProcessor.cpp
index 48a76ea21d..8638859934 100644
--- a/UI/TiltEventProcessor.cpp
+++ b/UI/TiltEventProcessor.cpp
@@ -89,6 +89,10 @@ void TiltEventProcessor::TranslateTiltToInput(const Tilt &tilt) {
 	case TILT_ACTION_BUTTON:
 		GenerateActionButtonEvent(tilt);
 		break;
+
+	case TILT_TRIGGER_BUTTON:
+		GenerateTriggerButtonEvent(tilt);
+		break;
 	}
 }
 
@@ -154,6 +158,25 @@ void TiltEventProcessor::GenerateActionButtonEvent(const Tilt &tilt) {
 	tiltButtonsDown |= buttons[direction];
 }
 
+void TiltEventProcessor::GenerateTriggerButtonEvent(const Tilt &tilt) {
+	u32 upButtons = 0;
+	u32 downButtons = 0;
+	// KISS, let's only look at X.  Expect deadzone to already be applied.
+	if (tilt.x_ == 0.0f) {
+		upButtons = CTRL_LTRIGGER | CTRL_RTRIGGER;
+	} else if (tilt.x_ < 0.0f) {
+		downButtons = CTRL_LTRIGGER;
+		upButtons = CTRL_RTRIGGER;
+	} else if (tilt.x_ > 0.0f) {
+		downButtons = CTRL_RTRIGGER;
+		upButtons = CTRL_LTRIGGER;
+	}
+
+	__CtrlButtonUp(upButtons);
+	__CtrlButtonDown(downButtons);
+	tiltButtonsDown = (tiltButtonsDown & ~upButtons) | downButtons;
+}
+
 void TiltEventProcessor::ResetTiltEvents() {
 	// Reset the buttons we have marked pressed.
 	__CtrlButtonUp(tiltButtonsDown);
diff --git a/UI/TiltEventProcessor.h b/UI/TiltEventProcessor.h
index 4d42d79d94..8f916d2077 100644
--- a/UI/TiltEventProcessor.h
+++ b/UI/TiltEventProcessor.h
@@ -6,7 +6,8 @@ namespace TiltEventProcessor {
 		TILT_NULL = 0,
 		TILT_ANALOG,
 		TILT_DPAD,
-		TILT_ACTION_BUTTON
+		TILT_ACTION_BUTTON,
+		TILT_TRIGGER_BUTTON,
 	};
 
 
@@ -33,7 +34,8 @@ namespace TiltEventProcessor {
 	//and the deadzone radius.
 	void GenerateAnalogStickEvent(const Tilt &tilt);
 	void GenerateDPadEvent(const Tilt &tilt);
-	void GenerateActionButtonEvent(const Tilt &tilt); 
+	void GenerateActionButtonEvent(const Tilt &tilt);
+	void GenerateTriggerButtonEvent(const Tilt &tilt);
 
 	void ResetTiltEvents();