fix that buffoonery

src/Engine.cpp

@@ -45,25 +45,10 @@ bool Engine::createInstance() {
         .apiVersion = VK_API_VERSION_1_4 // this one is most important
     };
 
-    // get necessary extensions that our windowing library requires
+    // get extensions that our windowing library requires
     uint32_t instanceExtensionsCount = 0;
     char const* const* instanceExtensions{ SDL_Vulkan_GetInstanceExtensions(&instanceExtensionsCount) };
 
-    // get required validation layers as specified by our app
-    std::vector<const char*> requiredValidationLayers;
-    if(enableValidationLayers) requiredValidationLayers.assign(validationLayers.begin(), validationLayers.end());
-
-    auto validationLayerProperties = context_.enumerateInstanceLayerProperties();
-    auto unsupportedLayer = std::ranges::find_if(requiredValidationLayers, [&validationLayerProperties](const auto& requiredLayer) {
-        return std::ranges::none_of(validationLayerProperties, [requiredLayer](const auto& layerProperty) {
-            return strcmp(layerProperty.layerName, requiredLayer) == 0;
-        });
-    }); // TODO: what black magic even is this
-    if(unsupportedLayer != requiredValidationLayers.end()) {
-        std::cout << "[" << __FUNCTION__ << ": " << __LINE__ << "] Required validation layer not supported: " << *unsupportedLayer << std::endl;
-        errorCount++;
-    }
-
     // get all available extensions
     auto extensionProperties = context_.enumerateInstanceExtensionProperties();
 
@@ -73,12 +58,11 @@ bool Engine::createInstance() {
         std::cout << "\t" << extensionProperty.extensionName << std::endl;
     }
 
+    // check that all required extensions are available
     for(uint32_t i = 0; i < instanceExtensionsCount; i++) { // for each extension that we require
         bool found = false;
         for(const auto& extensionProperty : extensionProperties) { // see if it matches any extensions that are provided
             if(strcmp(extensionProperty.extensionName, instanceExtensions[i]) == 0) {
-                std::cout << "[" << __FUNCTION__ << ": " << __LINE__ << "] Required SDL3 extension not supported: " << instanceExtensions[i] << std::endl;
-            } else {
                 found = true;
                 break;
             }
@@ -90,7 +74,39 @@ bool Engine::createInstance() {
 	        // in case you're curious
             //std::cout << "[" << __FUNCTION__ << ": " << __LINE__ << "] SDL3 extension located: " << instanceExtensions[i] << std::endl;
         }
-    } // if any weren't then we must exit
+    }
+
+    // get required validation layers as specified by our app
+    std::vector<const char*> requiredValidationLayers;
+    if(enableValidationLayers) requiredValidationLayers.assign(validationLayers.begin(), validationLayers.end());
+
+    // get available validation layers
+    auto validationLayerProperties = context_.enumerateInstanceLayerProperties();
+
+    // again print if we feel like it
+    std::cout << "Available Vulkan Validation Layers: " << std::endl;
+    for(const auto& validationLayer : validationLayerProperties) {
+        std::cout << "\t" << validationLayer.layerName << std::endl;
+    }
+
+    // check that all required validation layers are avilable
+    for(int i = 0; i < requiredValidationLayers.size(); i++) {
+        bool found = false;
+        for(const auto& validationLayer : validationLayerProperties) {
+            if(strcmp(requiredValidationLayers[i], validationLayer.layerName) == 0) {
+                found = true;
+                break;
+            }
+        }
+        if(!found) {
+            errorCount++;
+            std::cout << "[" << __FUNCTION__ << ": " << __LINE__ << "] Required validation layer not supported: " << requiredValidationLayers[i] << std::endl;
+        } else { // in case you're curious
+            //std::cout << "[" << __FUNCTION__ << ": " << __LINE__ << "] VkValidation layer located: " << requiredValidationLayers[i] << std::endl;
+        }
+    }
+    
+    // if any we had errors then we must exit
     if(errorCount != 0) return false;
 
     vk::InstanceCreateInfo instanceCreateInfo {