Etc: Implement missing RGSS3 functionality (and bind in MRI)

binding-mri/etc-binding.cpp

@@ -79,9 +79,17 @@ EQUAL_FUN(Rect)
 #define INIT_FUN(Klass, param_type, param_t_s, last_param_def) \
 	RB_METHOD(Klass##Initialize) \
 	{ \
-		param_type p1, p2, p3, p4 = last_param_def; \
-		rb_get_args(argc, argv, param_t_s, &p1, &p2, &p3, &p4 RB_ARG_END); \
-		Klass *k = new Klass(p1, p2, p3, p4); \
+		Klass *k; \
+		if (argc == 0) \
+		{ \
+			k = new Klass(); \
+		} \
+		else \
+		{ \
+			param_type p1, p2, p3, p4 = last_param_def; \
+			rb_get_args(argc, argv, param_t_s, &p1, &p2, &p3, &p4 RB_ARG_END); \
+			k = new Klass(p1, p2, p3, p4); \
+		} \
 		setPrivateData(self, k); \
 		return self; \
 	}
@@ -93,10 +101,19 @@ INIT_FUN(Rect, int, "iiii", 0)
 #define SET_FUN(Klass, param_type, param_t_s, last_param_def) \
 	RB_METHOD(Klass##Set) \
 	{ \
-		param_type p1, p2, p3, p4 = last_param_def; \
-		rb_get_args(argc, argv, param_t_s, &p1, &p2, &p3, &p4 RB_ARG_END); \
 		Klass *k = getPrivateData<Klass>(self); \
-		k->set(p1, p2, p3, p4); \
+		if (argc == 1) \
+		{ \
+			VALUE otherObj = argv[0]; \
+			Klass *other = getPrivateDataCheck<Klass>(otherObj, Klass##Type); \
+			k->set(*other); \
+		} \
+		else \
+		{ \
+			param_type p1, p2, p3, p4 = last_param_def; \
+			rb_get_args(argc, argv, param_t_s, &p1, &p2, &p3, &p4 RB_ARG_END); \
+			k->set(p1, p2, p3, p4); \
+		} \
 		return self; \
 	}
 

src/etc.cpp

@@ -78,6 +78,15 @@ void Color::set(double red, double green, double blue, double alpha)
 	updateInternal();
 }
 
+void Color::set(const Color &other)
+{
+	red   = other.red;
+	green = other.green;
+	blue  = other.blue;
+	alpha = other.alpha;
+	norm  = other.norm;
+}
+
 void Color::setRed(double value)
 {
 	red = value;
@@ -183,6 +192,17 @@ void Tone::set(double red, double green, double blue, double gray)
 	valueChanged();
 }
 
+void Tone::set(const Tone &other)
+{
+	red  = other.red;
+	green= other.green;
+	blue = other.blue;
+	gray = other.gray;
+	norm = other.norm;
+
+	valueChanged();
+}
+
 void Tone::setRed(double value)
 {
 	red = value;
@@ -295,6 +315,16 @@ void Rect::set(int x, int y, int w, int h)
 	valueChanged();
 }
 
+void Rect::set(const Rect &other)
+{
+	x      = other.x;
+	y      = other.y;
+	width  = other.width;
+	height = other.height;
+
+	valueChanged();
+}
+
 void Rect::empty()
 {
 	if (!(x || y || width || height))

src/etc.h

@@ -56,6 +56,8 @@ struct Color : public Serializable
 	void updateExternal();
 
 	void set(double red, double green, double blue, double alpha);
+	void set(const Color &other);
+
 	void setRed(double value);
 	void setGreen(double value);
 	void setBlue(double value);
@@ -104,6 +106,8 @@ struct Tone : public Serializable
 	void updateInternal();
 
 	void set(double red, double green, double blue, double gray);
+	void set(const Tone &other);
+
 	void setRed(double value);
 	void setGreen(double value);
 	void setBlue(double value);
@@ -155,6 +159,7 @@ struct Rect : public Serializable
 	bool operator==(const Rect &o) const;
 	void operator=(const IntRect &rect);
 	void set(int x, int y, int w, int h);
+	void set(const Rect &other);
 
 	FloatRect toFloatRect() const
 	{