src/eventthread.cpp

@@ -38,7 +38,7 @@ uint8_t EventThread::keyStates[] = { false };
 
 EventThread::JoyState EventThread::joyState =
 {
-	{ 0 }, { false }
+	{ 0 }, { 0 }, { false }
 };
 
 EventThread::MouseState EventThread::mouseState =
@@ -274,8 +274,12 @@ void EventThread::process(RGSSThreadData &rtData)
 			joyState.buttons[event.jbutton.button] = false;
 			break;
 
+		case SDL_JOYHATMOTION :
+			joyState.hats[event.jhat.hat] = event.jhat.value;
+			break;
+
 		case SDL_JOYAXISMOTION :
-			joyState.axis[event.jaxis.axis] = event.jaxis.value;
+			joyState.axes[event.jaxis.axis] = event.jaxis.value;
 			break;
 
 		case SDL_JOYDEVICEADDED :

src/eventthread.h

@@ -46,7 +46,8 @@ public:
 
 	struct JoyState
 	{
-		int axis[256];
+		int axes[256];
+		uint8_t hats[256];
 		bool buttons[256];
 	};
 

src/input.cpp

@@ -133,7 +133,7 @@ struct JsAxisBinding : public Binding
 
 	bool sourceActive() const
 	{
-		int val = EventThread::joyState.axis[source];
+		int val = EventThread::joyState.axes[source];
 
 		if (dir == Negative)
 			return val < -JAXIS_THRESHOLD;
@@ -150,6 +150,34 @@ struct JsAxisBinding : public Binding
 	AxisDir dir;
 };
 
+/* Joystick hat binding */
+struct JsHatBinding : public Binding
+{
+	JsHatBinding() {}
+
+	JsHatBinding(uint8_t source,
+	              uint8_t pos,
+	              Input::ButtonCode target)
+	    : Binding(target),
+	      source(source),
+	      pos(pos)
+	{}
+
+	bool sourceActive() const
+	{
+		/* For a diagonal input accept it as an input for both the axes */
+		return (pos & EventThread::joyState.hats[source]) != 0;
+	}
+
+	bool sourceRepeatable() const
+	{
+		return true;
+	}
+
+	uint8_t source;
+	uint8_t pos;
+};
+
 /* Mouse button binding */
 struct MsBinding : public Binding
 {
@@ -241,6 +269,7 @@ struct InputPrivate
 	std::vector<KbBinding> kbStatBindings;
 	std::vector<KbBinding> kbBindings;
 	std::vector<JsAxisBinding> jsABindings;
+	std::vector<JsHatBinding> jsHBindings;
 	std::vector<JsButtonBinding> jsBBindings;
 	std::vector<MsBinding> msBindings;
 
@@ -348,6 +377,7 @@ struct InputPrivate
 	{
 		kbBindings.clear();
 		jsABindings.clear();
+		jsHBindings.clear();
 		jsBBindings.clear();
 
 		for (size_t i = 0; i < d.size(); ++i)
@@ -381,6 +411,16 @@ struct InputPrivate
 
 				break;
 			}
+			case JHat :
+			{
+				JsHatBinding bind;
+				bind.source = src.d.jh.hat;
+				bind.pos = src.d.jh.pos;
+				bind.target = desc.target;
+				jsHBindings.push_back(bind);
+
+				break;
+			}
 			case JButton :
 			{
 				JsButtonBinding bind;
@@ -402,6 +442,7 @@ struct InputPrivate
 
 		appendBindings(kbBindings);
 		appendBindings(jsABindings);
+		appendBindings(jsHBindings);
 		appendBindings(jsBBindings);
 	}
 

src/keybindings.cpp

@@ -129,6 +129,20 @@ static void addAxisBinding(BDescVec &d, uint8_t axis, AxisDir dir, Input::Button
 	d.push_back(desc);
 }
 
+static void addHatBinding(BDescVec &d, uint8_t hat, uint8_t pos, Input::ButtonCode target)
+{
+	SourceDesc src;
+	src.type = JHat;
+	src.d.jh.hat = hat;
+	src.d.jh.pos = pos;
+
+	BindingDesc desc;
+	desc.src = src;
+	desc.target = target;
+
+	d.push_back(desc);
+}
+
 BDescVec genDefaultBindings(const Config &conf)
 {
 	BDescVec d;
@@ -150,11 +164,16 @@ BDescVec genDefaultBindings(const Config &conf)
 	addAxisBinding(d, 0, Positive, Input::Right);
 	addAxisBinding(d, 1, Negative, Input::Up   );
 	addAxisBinding(d, 1, Positive, Input::Down );
+	
+	addHatBinding(d, 0, SDL_HAT_LEFT,  Input::Left );
+	addHatBinding(d, 0, SDL_HAT_RIGHT, Input::Right);
+	addHatBinding(d, 0, SDL_HAT_UP,    Input::Up   );
+	addHatBinding(d, 0, SDL_HAT_DOWN,  Input::Down );
 
 	return d;
 }
 
-#define FORMAT_VER 1
+#define FORMAT_VER 2
 
 struct Header
 {
@@ -247,6 +266,10 @@ static bool verifyDesc(const BindingDesc &desc)
 		return src.d.scan < SDL_NUM_SCANCODES;
 	case JButton:
 		return true;
+	case JHat:
+		/* Only accept single directional binds */
+		return src.d.jh.pos == SDL_HAT_LEFT || src.d.jh.pos == SDL_HAT_RIGHT ||
+		       src.d.jh.pos == SDL_HAT_UP   || src.d.jh.pos == SDL_HAT_DOWN;
 	case JAxis:
 		return src.d.ja.dir == Negative || src.d.ja.dir == Positive;
 	default:

src/keybindings.h

@@ -25,6 +25,7 @@
 #include "input.h"
 
 #include <SDL_scancode.h>
+#include <SDL_joystick.h>
 #include <stdint.h>
 #include <assert.h>
 #include <vector>
@@ -40,7 +41,8 @@ enum SourceType
 	Invalid,
 	Key,
 	JButton,
-	JAxis
+	JAxis,
+	JHat
 };
 
 struct SourceDesc
@@ -60,6 +62,13 @@ struct SourceDesc
 			/* Joystick axis direction */
 			AxisDir dir;
 		} ja;
+		struct
+		{
+			/* Joystick axis index */
+			uint8_t hat;
+			/* Joystick axis direction */
+			uint8_t pos;
+		} jh;
 	} d;
 
 	bool operator==(const SourceDesc &o) const
@@ -77,6 +86,8 @@ struct SourceDesc
 			return d.jb == o.d.jb;
 		case JAxis:
 			return (d.ja.axis == o.d.ja.axis) && (d.ja.dir == o.d.ja.dir);
+		case JHat:
+			return (d.jh.hat == o.d.jh.hat) && (d.jh.pos == o.d.jh.pos);
 		default:
 			assert(!"unreachable");
 			return false;

src/settingsmenu.cpp

@@ -81,6 +81,7 @@ static elementsN(vButtons);
 std::string sourceDescString(const SourceDesc &src)
 {
 	char buf[128];
+	char pos;
 
 	switch (src.type)
 	{
@@ -104,6 +105,32 @@ std::string sourceDescString(const SourceDesc &src)
 		snprintf(buf, sizeof(buf), "JS %d", src.d.jb);
 		return buf;
 
+	case JHat:
+		switch(src.d.jh.pos)
+		{
+		case SDL_HAT_UP:
+			pos = 'U';
+			break;
+
+		case SDL_HAT_DOWN:
+			pos = 'D';
+			break;
+
+		case SDL_HAT_LEFT:
+			pos = 'L';
+			break;
+
+		case SDL_HAT_RIGHT:
+			pos = 'R';
+			break;
+
+		default:
+			pos = '-';
+		}
+		snprintf(buf, sizeof(buf), "Hat %d:%c",
+		         src.d.jh.hat, pos);
+		return buf;
+
 	case JAxis:
 		snprintf(buf, sizeof(buf), "Axis %d%c",
 		         src.d.ja.axis, src.d.ja.dir == Negative ? '-' : '+');
@@ -616,6 +643,21 @@ struct SettingsMenuPrivate
 			desc.d.jb = event.jbutton.button;
 			break;
 
+		case SDL_JOYHATMOTION:
+		{
+			int v = event.jhat.value;
+
+			/* Only register if single directional input */
+			if (v != SDL_HAT_LEFT && v != SDL_HAT_RIGHT &&
+			    v != SDL_HAT_UP   && v != SDL_HAT_DOWN)
+				return true;
+
+			desc.type = JHat;
+			desc.d.jh.hat = event.jhat.hat;
+			desc.d.jh.pos = v;
+			break;
+		}
+
 		case SDL_JOYAXISMOTION:
 		{
 			int v = event.jaxis.value;
@@ -1008,6 +1050,7 @@ bool SettingsMenu::onEvent(const SDL_Event &event)
 
 	case SDL_JOYBUTTONDOWN :
 	case SDL_JOYBUTTONUP :
+	case SDL_JOYHATMOTION :
 	case SDL_JOYAXISMOTION :
 		if (!p->hasFocus)
 			return false;
@@ -1084,6 +1127,7 @@ bool SettingsMenu::onEvent(const SDL_Event &event)
 		}
 
 	case SDL_JOYBUTTONDOWN:
+	case SDL_JOYHATMOTION:
 	case SDL_JOYAXISMOTION:
 		if (p->state != AwaitingInput)
 			return true;