Vector2 Lua Binding

Added Nz::Vector2 Lua binding


Former-commit-id: 727ad086fe62ce131ffdbc24ce17d020cd0fede7

SDK/src/NDK/LuaAPI_Core.cpp

@@ -41,13 +41,14 @@ namespace Ndk
 		abstractHashClass.SetMethod("End",
 			[](Nz::LuaInstance& lua, Nz::AbstractHash& hash) -> int
 			{
-				Nz::ByteArray data(hash.End()); // Exceptions? What's the expected behavior of that method?
+				Nz::ByteArray data(hash.End());
 
 				lua.PushString(data.ToString());
 				return 1;
 			});
 
 		abstractHashClass.SetMethod("GetDigestLength", &Nz::AbstractHash::GetDigestLength);
+
 		abstractHashClass.SetMethod("GetHashName", 
 			[](Nz::LuaInstance& lua, Nz::AbstractHash& hash) -> int
 			{

SDK/src/NDK/LuaAPI_Math.cpp

@@ -8,10 +8,118 @@ namespace Ndk
 {
 	void LuaAPI::Register_Math(Nz::LuaInstance& instance)
 	{
-		/*********************************** Nz::Vector3 **********************************/
+		/*********************************** Nz::Vector2 **********************************/
-		Nz::LuaClass<Nz::Vector3d> vectorClass("Vector3");
+		Nz::LuaClass<Nz::Vector2d> vector2dClass("Vector2");
 
-		vectorClass.SetConstructor([] (Nz::LuaInstance& lua) -> Nz::Vector3d* {
+		vector2dClass.SetConstructor(
+			[](Nz::LuaInstance& lua) -> Nz::Vector2d* 
+			{
+				unsigned int argCount = std::min(lua.GetStackTop(), 2U);
+				switch (argCount)
+				{
+					case 0:
+					case 2:
+						return new Nz::Vector2d(lua.CheckNumber(1, 0.0), lua.CheckNumber(2, 0.0));
+
+					case 1:
+					{
+						if (lua.IsOfType(1, Nz::LuaType_Number))
+							return new Nz::Vector2d(lua.CheckNumber(1));
+						else if (lua.IsOfType(1, "Vector2"))
+							return new Nz::Vector2d(*(*static_cast<Nz::Vector2d*>(lua.ToUserdata(1))));
+
+						break;
+					}
+				}
+
+				lua.Error("No matching overload for Vector2 constructor");
+				return nullptr;
+			});
+
+		vector2dClass.SetMethod("__tostring", &Nz::Vector2d::ToString);
+
+		vector2dClass.SetGetter(
+			[](Nz::LuaInstance& lua, Nz::Vector2d& instance)
+			{
+				switch (lua.GetType(1))
+				{
+					case Nz::LuaType_Number:
+						lua.Push(instance[lua.CheckInteger(1)]);
+						return true;
+
+					case Nz::LuaType_String:
+					{
+						std::size_t length;
+						const char* xy = lua.CheckString(1, &length);
+
+						if (length != 1)
+							break;
+
+						switch (xy[0])
+						{
+							case 'x':
+								lua.Push(instance.x);
+								return true;
+
+							case 'y':
+								lua.Push(instance.y);
+								return true;
+						}
+						break;
+					}
+				}
+
+				return false;
+			});
+
+		vector2dClass.SetSetter(
+			[](Nz::LuaInstance& lua, Nz::Vector2d& instance)
+			{
+				switch (lua.GetType(1))
+				{
+					case Nz::LuaType_Number:
+					{
+						long long index = lua.CheckInteger(1);
+						if (index < 1 || index > 2)
+							return false;
+
+						instance[index] = lua.CheckNumber(2);
+						return true;
+					}
+
+					case Nz::LuaType_String:
+					{
+						std::size_t length;
+						const char* xy = lua.CheckString(1, &length);
+
+						if (length != 1)
+							break;
+
+						double value = lua.CheckNumber(2);
+
+						switch (xy[0])
+						{
+							case 'x':
+								instance.x = value;
+								return true;
+
+							case 'y':
+								instance.y = value;
+								return true;
+						}
+						break;
+					}
+				}
+
+				return false;
+			});
+
+		vector2dClass.Register(instance);
+
+		/*********************************** Nz::Vector3 **********************************/
+		Nz::LuaClass<Nz::Vector3d> vector3dClass("Vector3");
+
+		vector3dClass.SetConstructor([] (Nz::LuaInstance& lua) -> Nz::Vector3d* {
 			unsigned int argCount = std::min(lua.GetStackTop(), 3U);
 			switch (argCount)
 			{
@@ -46,9 +154,9 @@ namespace Ndk
 			return nullptr;
 		});
 
-		vectorClass.SetMethod("__tostring", &Nz::Vector3d::ToString);
+		vector3dClass.SetMethod("__tostring", &Nz::Vector3d::ToString);
 
-		vectorClass.SetGetter([] (Nz::LuaInstance& lua, Nz::Vector3d& instance)
+		vector3dClass.SetGetter([] (Nz::LuaInstance& lua, Nz::Vector3d& instance)
 		{
 			switch (lua.GetType(1))
 			{
@@ -85,7 +193,7 @@ namespace Ndk
 			return false;
 		});
 
-		vectorClass.SetSetter([] (Nz::LuaInstance& lua, Nz::Vector3d& instance)
+		vector3dClass.SetSetter([] (Nz::LuaInstance& lua, Nz::Vector3d& instance)
 		{
 			switch (lua.GetType(1))
 			{
@@ -130,6 +238,6 @@ namespace Ndk
 			return false;
 		});
 
-		vectorClass.Register(instance);
+		vector3dClass.Register(instance);
 	}
 }