Add nesting to `SettingsLoader::getQuadSurface`

src/Application/SettingsLoader.cpp

@@ -236,53 +236,71 @@ BaseSurface * SettingsLoader::getTriangleSurface(ofxXmlSettings * xmlSettings){
 BaseSurface * SettingsLoader::getQuadSurface(ofxXmlSettings * xmlSettings){
 	vector <ofVec2f> vertices;
 	
-	xmlSettings->pushTag("vertex", 0);
-	vertices.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
-							   xmlSettings->getValue("y", 0.0f)));
-	xmlSettings->popTag();
-
-	xmlSettings->pushTag("vertex", 1);
-	vertices.push_back(ofVec2f(xmlSettings->getValue("x", 100.0f),
-							   xmlSettings->getValue("y", 0.0f)));
-	xmlSettings->popTag();
-
-	xmlSettings->pushTag("vertex", 2);
-	vertices.push_back(ofVec2f(xmlSettings->getValue("x", 100.0f),
-							   xmlSettings->getValue("y", 100.0f)));
-	xmlSettings->popTag();
-
-	xmlSettings->pushTag("vertex", 3);
-	vertices.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
-							   xmlSettings->getValue("y", 100.0f)));
-	xmlSettings->popTag();
+	if(xmlSettings->tagExists("vertex", 0)){
+		xmlSettings->pushTag("vertex", 0);
+		vertices.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
+								   xmlSettings->getValue("y", 0.0f)));
+		xmlSettings->popTag();
+	}
 
-	xmlSettings->popTag(); // vertices
+	if(xmlSettings->tagExists("vertex", 1)){
+		xmlSettings->pushTag("vertex", 1);
+		vertices.push_back(ofVec2f(xmlSettings->getValue("x", 100.0f),
+							       xmlSettings->getValue("y", 0.0f)));
+		xmlSettings->popTag();
+	}
+
+	if(xmlSettings->tagExists("vertex", 2)){
+		xmlSettings->pushTag("vertex", 2);
+		vertices.push_back(ofVec2f(xmlSettings->getValue("x", 100.0f),
+							       xmlSettings->getValue("y", 100.0f)));
+		xmlSettings->popTag();
+	}
 
-	xmlSettings->pushTag("texCoords");
+	if(xmlSettings->tagExists("vertex", 3)){
+		xmlSettings->pushTag("vertex", 3);
+		vertices.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
+								   xmlSettings->getValue("y", 100.0f)));
+		xmlSettings->popTag();
+	}
 
+	xmlSettings->popTag(); // vertices
+	
 	vector <ofVec2f> texCoords;
 
-	xmlSettings->pushTag("texCoord", 0);
-	texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
-								xmlSettings->getValue("y", 0.0f)));
-	xmlSettings->popTag();
+	if(xmlSettings->tagExists("texCoords")){
+		xmlSettings->pushTag("texCoords");
 
-	xmlSettings->pushTag("texCoord", 1);
-	texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 1.0f),
-								xmlSettings->getValue("y", 0.0f)));
-	xmlSettings->popTag();
+		if(xmlSettings->tagExists("texCoord", 0)){
+			xmlSettings->pushTag("texCoord", 0);
+			texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
+										xmlSettings->getValue("y", 0.0f)));
+			xmlSettings->popTag();
+		}
+		
+		if(xmlSettings->tagExists("texCoord", 1)){
+			xmlSettings->pushTag("texCoord", 1);
+			texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 1.0f),
+										xmlSettings->getValue("y", 0.0f)));
+			xmlSettings->popTag();
+		}
 
-	xmlSettings->pushTag("texCoord", 2);
-	texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 1.0f),
-								xmlSettings->getValue("y", 1.0f)));
-	xmlSettings->popTag();
+		if(xmlSettings->tagExists("texCoord", 2)){
+			xmlSettings->pushTag("texCoord", 2);
+			texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 1.0f),
+										xmlSettings->getValue("y", 1.0f)));
+			xmlSettings->popTag();
+		}
 
-	xmlSettings->pushTag("texCoord", 3);
-	texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
-								xmlSettings->getValue("y", 1.0f)));
-	xmlSettings->popTag();
+		if(xmlSettings->tagExists("texCoord", 3)){
+			xmlSettings->pushTag("texCoord", 3);
+			texCoords.push_back(ofVec2f(xmlSettings->getValue("x", 0.0f),
+										xmlSettings->getValue("y", 1.0f)));
+			xmlSettings->popTag();
+		}
 
-	xmlSettings->popTag(); // texCoords
+		xmlSettings->popTag(); // texCoords
+	}
 	
 	// Create and add quad surface
 	BaseSurface * quadSurface =