Added BezierCurve:renderSegment

src/modules/math/wrap_BezierCurve.cpp

@@ -165,6 +165,28 @@ int w_BezierCurve_render(lua_State *L)
 	return 1;
 }
 
+int w_BezierCurve_renderSegment(lua_State *L)
+{
+	BezierCurve *curve = luax_checkbeziercurve(L, 1);
+	double start = luaL_checknumber(L, 2);
+	double end = luaL_checknumber(L, 3);
+	int accuracy = luaL_optinteger(L, 4, 5);
+	
+	std::vector<Vector> points;
+	luax_catchexcept(L, [&](){ points = curve->renderSegment(start, end, accuracy); });
+	
+	lua_createtable(L, points.size()*2, 0);
+	for (size_t i = 0; i < points.size(); ++i)
+	{
+		lua_pushnumber(L, points[i].x);
+		lua_rawseti(L, -2, 2*i+2);
+		lua_pushnumber(L, points[i].y);
+		lua_rawseti(L, -2, 2*i+2);
+	}
+	
+	return 1;
+}
+	
 static const luaL_Reg functions[] =
 {
 	{"getDegree", w_BezierCurve_getDegree},
@@ -178,6 +200,7 @@ static const luaL_Reg functions[] =
 	{"scale", w_BezierCurve_scale},
 	{"evaluate", w_BezierCurve_evaluate},
 	{"render", w_BezierCurve_render},
+	{"renderSegment", w_BezierCurve_renderSegment},
 	{ 0, 0 }
 };