Removed love.touch.getTouchCount and love.touch.getTouch. Added love.touch.getTouchIDs and love.touch.getPosition.

love.touch.getTouchIDs returns an array of all currently active touch IDs. love.touch.getPosition takes an active touch ID and returns the current position of that touch.

--HG--
branch : minor

src/modules/touch/sdl/Touch.cpp

@@ -30,25 +30,25 @@ namespace touch
 namespace sdl
 {
 
-int Touch::getTouchCount() const
+std::vector<int64> Touch::getTouchIDs() const
 {
-	return (int) touches.size();
+	std::vector<int64> ids;
+	ids.reserve(touches.size());
+
+	for (const auto &touch : touches)
+		ids.push_back(touch.first);
+
+	return ids;
 }
 
-Touch::TouchInfo Touch::getTouch(int index) const
+void Touch::getPosition(int64 id, double &x, double &y) const
 {
-	if (index < 0)
-		throw love::Exception("Invalid touch index: %d", index);
+	const auto it = touches.find(id);
+	if (it == touches.end())
+		throw love::Exception("Invalid active touch ID: %d", id);
 
-	std::map<int64, TouchInfo>::const_iterator it = touches.begin();
-
-	for (int i = 0; i < index; i++)
-	{
-		if (++it == touches.end())
-			throw love::Exception("Invalid touch index: %d", index);
-	}
-
-	return it->second;
+	x = it->second.x;
+	y = it->second.y;
 }
 
 const char *Touch::getName() const

src/modules/touch/sdl/Touch.h

@@ -43,8 +43,8 @@ public:
 
 	virtual ~Touch() {}
 
-	virtual int getTouchCount() const;
-	virtual TouchInfo getTouch(int index) const;
+	virtual std::vector<int64> getTouchIDs() const;
+	virtual void getPosition(int64 id, double &x, double &y) const;
 
 	// Implements Module.
 	virtual const char *getName() const;