Integrate nuklear into engine

engine/breeze/game.h

@@ -19,13 +19,19 @@ typedef struct BzAppDesc {
     BzAppRenderFunc render;
     BzAppDeinitFunc deinit;
 
+    bool useNuklear;
+
     void *userData;
 } BzAppDesc;
 
+extern struct nk_context *NK;
+
 extern bool bzMain(BzAppDesc *appDesc, int argc, const char **argv);
 
 #ifdef BZ_ENTRYPOINT
-#include <raylib.h>
+#include <raylib-nuklear.h>
+
+struct nk_context *NK = NULL;
 
 // https://www.raylib.com/examples/core/loader.html?name=core_custom_logging
 static void bzRaylibLogger(int msgType, const char *text, va_list args) {
@@ -85,16 +91,27 @@ int main(int argc, const char **argv) {
     SetTargetFPS(appDesc.fps);
     // Initialize modules
 
+    if (appDesc.useNuklear) {
+        NK = InitNuklear(16);
+    }
+
     // User initialize
     if (appDesc.init && !appDesc.init(appDesc.userData)) {
         return 1;
     }
 
     while (!WindowShouldClose()) {
+        if (NK)
+            UpdateNuklear(NK);
         if (appDesc.update)
             appDesc.update(0.0f, appDesc.userData);
+
+        BeginDrawing();
         if (appDesc.render)
             appDesc.render(0.0f, appDesc.userData);
+        if (NK)
+            DrawNuklear(NK);
+        EndDrawing();
     }
 
     // User deinitialize
@@ -102,6 +119,10 @@ int main(int argc, const char **argv) {
         appDesc.deinit(appDesc.userData);
 
     // Deinitialize modules
+    if (NK) {
+        UnloadNuklear(NK);
+        NK = NULL;
+    }
 
     CloseWindow();
     bzLoggerDeinit();