From 285bcac224b045fef967c2a741240e5fa842cb08 Mon Sep 17 00:00:00 2001
From: hondres <liu.gam3@gmail.com>
Date: Sun, 24 Jan 2016 18:01:37 +0100
Subject: [PATCH] can use fallback mapping on all platforms

---
 main/input_default.cpp          | 31 +++++++++++++++++--------------
 main/input_default.h            |  4 ++--
 platform/android/os_android.cpp |  2 +-
 3 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/main/input_default.cpp b/main/input_default.cpp
index bafc227fb27..51a6292b889 100644
--- a/main/input_default.cpp
+++ b/main/input_default.cpp
@@ -157,19 +157,13 @@ void InputDefault::joy_connection_changed(int p_idx, bool p_connected, String p_
 		};
 		js.uid = uidname;
 		//printf("looking for mappings for guid %ls\n", uidname.c_str());
-		int mapping = -1;
+		int mapping = fallback_mapping;
 		for (int i=0; i < map_db.size(); i++) {
 			if (js.uid == map_db[i].uid) {
 				mapping = i;
 				//printf("found mapping\n");
 			};
 		};
-#ifdef ANDROID_ENABLED
-		//Use a default mapping for Android, as we recieve events using indices of a SDL_GAMECONTROLLER.
-		//So we need to map those to our own joystick layout
-		if (mapping == -1)
-			mapping = 0;
-#endif
 		js.mapping = mapping;
 	};
 	joy_names[p_idx] = js;
@@ -519,10 +513,8 @@ InputDefault::InputDefault() {
 	hat_map_default[HAT_LEFT].index = JOY_DPAD_LEFT;
 	hat_map_default[HAT_LEFT].value = 0;
 
-#ifdef ANDROID_ENABLED
-	//add the default mapping first, in case someone actually sets the env variable on their phone
-	parse_mapping("Default Android Gamepad,Default Controller,leftx:a0,lefty:a1,dpdown:h0.4,rightstick:b8,rightshoulder:b10,rightx:a2,start:b6,righty:a3,dpleft:h0.8,lefttrigger:a4,x:b2,dpup:h0.1,back:b4,leftstick:b7,leftshoulder:b9,y:b3,a:b0,dpright:h0.2,righttrigger:a5,b:b1,");
-#endif
+	fallback_mapping = -1;
+
 	String env_mapping = OS::get_singleton()->get_environment("SDL_GAMECONTROLLERCONFIG");
 	if (env_mapping != "") {
 
@@ -875,10 +867,8 @@ String InputDefault::get_joy_guid(int p_device) const {
 
 //platforms that use the remapping system can override and call to these ones
 bool InputDefault::is_joy_mapped(int p_device) {
-#ifdef ANDROID_ENABLED
-	if (joy_names[p_device].mapping == 0)
+	if (joy_names[p_device].mapping == fallback_mapping)
 		return false;
-#endif
 	return joy_names[p_device].mapping != -1 ? true : false;
 }
 
@@ -886,3 +876,16 @@ String InputDefault::get_joy_guid_remapped(int p_device) const {
 	return joy_names[p_device].uid;
 }
 
+void InputDefault::set_fallback_mapping(String p_mapping) {
+
+	int prev_fallback = fallback_mapping;
+	parse_mapping(p_mapping);
+	fallback_mapping = map_db.size() -1;
+
+	for (int i = 0; i < joy_names.size(); i++) {
+		if (joy_names[i].mapping == prev_fallback) {
+			joy_names[i].mapping = fallback_mapping;
+		}
+	}
+}
+
diff --git a/main/input_default.h b/main/input_default.h
index a417713a82c..7432a3715d4 100644
--- a/main/input_default.h
+++ b/main/input_default.h
@@ -18,7 +18,6 @@ class InputDefault : public Input {
 	MainLoop *main_loop;
 
 	bool emulate_touch;
-
 	struct SpeedTrack {
 
 		uint64_t last_tick;
@@ -62,6 +61,7 @@ class InputDefault : public Input {
 
 	SpeedTrack mouse_speed_track;
 	Map<int, Joystick> joy_names;
+	int fallback_mapping;
 	RES custom_cursor;
 public:
 	enum HatMask {
@@ -169,7 +169,7 @@ public:
 
 	bool is_joy_mapped(int p_device);
 	String get_joy_guid_remapped(int p_device) const;
-
+	void set_fallback_mapping(String p_mapping);
 	InputDefault();
 };
 
diff --git a/platform/android/os_android.cpp b/platform/android/os_android.cpp
index c8a3f6d728b..c80284afcfe 100644
--- a/platform/android/os_android.cpp
+++ b/platform/android/os_android.cpp
@@ -178,7 +178,7 @@ void OS_Android::initialize(const VideoMode& p_desired,int p_video_driver,int p_
 	physics_2d_server->init();
 
 	input = memnew( InputDefault );
-
+	input->set_fallback_mapping("Default Android Gamepad,Default Controller,leftx:a0,lefty:a1,dpdown:h0.4,rightstick:b8,rightshoulder:b10,rightx:a2,start:b6,righty:a3,dpleft:h0.8,lefttrigger:a4,x:b2,dpup:h0.1,back:b4,leftstick:b7,leftshoulder:b9,y:b3,a:b0,dpright:h0.2,righttrigger:a5,b:b1,");
 }
 
 void OS_Android::set_main_loop( MainLoop * p_main_loop ) {