From 2eb9b14cc2421b7ac485d11a8147f1b7049ec339 Mon Sep 17 00:00:00 2001
From: saschawillems <webmaster@saschawillems.de>
Date: Mon, 6 Mar 2017 22:11:19 +0100
Subject: [PATCH] Added basic Android touch movement (Refs #173)

---
 base/vulkanexamplebase.cpp | 21 ++++++++++++++++++++-
 base/vulkanexamplebase.h   |  2 ++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/base/vulkanexamplebase.cpp b/base/vulkanexamplebase.cpp
index 8c43dbc3..e253581c 100644
--- a/base/vulkanexamplebase.cpp
+++ b/base/vulkanexamplebase.cpp
@@ -327,11 +327,22 @@ void VulkanExampleBase::renderLoop()
 				fpsTimer = 0.0f;
 				frameCounter = 0;
 			}
+
+			bool updateView = false;
+
+			// Check touch state (for movement)
+			if (touchDown) {
+				touchTimer += frameTimer;
+			}
+			if (touchTimer >= 1.0) {
+				camera.keys.up = true;
+				viewChanged();
+			}
+
 			// Check gamepad state
 			const float deadZone = 0.0015f;
 			// todo : check if gamepad is present
 			// todo : time based and relative axis positions
-			bool updateView = false;
 			if (camera.type != Camera::CameraType::firstperson)
 			{
 				// Rotate
@@ -1169,9 +1180,17 @@ int32_t VulkanExampleBase::handleAppInput(struct android_app* app, AInputEvent*
 				int32_t action = AMotionEvent_getAction(event);
 
 				switch (action) {
+					case AMOTION_EVENT_ACTION_UP: {
+						vulkanExample->touchTimer = 0.0;
+						vulkanExample->touchDown = false;
+						vulkanExample->camera.keys.up = false;
+						return 1;
+						break;
+					}
 					case AMOTION_EVENT_ACTION_DOWN: {
 						vulkanExample->touchPos.x = AMotionEvent_getX(event, 0);
 						vulkanExample->touchPos.y = AMotionEvent_getY(event, 0);
+						vulkanExample->touchDown = true;
 						break;
 					}
 					case AMOTION_EVENT_ACTION_MOVE: {
diff --git a/base/vulkanexamplebase.h b/base/vulkanexamplebase.h
index 55a2a6de..3897361f 100644
--- a/base/vulkanexamplebase.h
+++ b/base/vulkanexamplebase.h
@@ -202,6 +202,8 @@ public:
 		int32_t x;
 		int32_t y;
 	} touchPos;
+	bool touchDown = false;
+	double touchTimer = 0.0;
 	/** @brief Product model and manufacturer of the Android device (via android.Product*) */
 	std::string androidProduct;
 #elif defined(VK_USE_PLATFORM_WAYLAND_KHR)