First vulkan init working

src/core/vulkan/mod.rs

@@ -1,7 +1,9 @@
 use vulkan_context::VulkanContext;
 use window_render_context::WindowRenderContext;
 
-use bevy_app::App;
+use bevy_app::{App, Plugin};
+
+use super::window::raw_handle::WindowWrapper;
 
 mod utils;
 mod vulkan_context;
@@ -13,16 +15,20 @@ pub enum VulkanError {
     FailedToCreateVulkanContext,
 }
 
-pub struct Vulkan;
+pub struct VulkanPlugin;
 
-impl Vulkan {
-    pub fn new(app: &mut App) -> Result<(), VulkanError> {
+impl Plugin for VulkanPlugin {
+    fn build(&self, app: &mut App) {
         let vulkan_context = VulkanContext::from(app as &App);
         app.world_mut().insert_resource(vulkan_context);
+    }
 
+    fn ready(&self, app: &App) -> bool {
+        app.world().get_resource::<WindowWrapper>().is_some()
+    }
+
+    fn finish(&self, app: &mut App) {
         let window_render_context = WindowRenderContext::from(app as &App);
         app.world_mut().insert_resource(window_render_context);
-
-        Ok(())
     }
 }