Fixing lots of UI bugs

src/render/TextRenderer.cpp

@@ -50,19 +50,27 @@ bool TextRenderer::init(Renderer& renderer, const std::string& ttfPath, int pixe
     
     r = &renderer;
 
+    static bool shaderAlreadyAdded = false;
+
+    if (shaderAlreadyAdded == false)
+    {
+        shaderAlreadyAdded = true;
+
 #ifdef EMSCRIPTEN
-    r->shaderManager.AddShaderFromFiles(shaderName,
-        "resources/shaders/text2d.vertex",
-        "resources/shaders/text2d_web.fragment",
-        zipfilename
-    );
+        r->shaderManager.AddShaderFromFiles(shaderName,
+            "resources/shaders/text2d.vertex",
+            "resources/shaders/text2d_web.fragment",
+            zipfilename
+        );
 #else
-    r->shaderManager.AddShaderFromFiles(shaderName,
-        "resources/shaders/text2d.vertex",
-        "resources/shaders/text2d_desktop.fragment",
-        zipfilename
-    );
+        r->shaderManager.AddShaderFromFiles(shaderName,
+            "resources/shaders/text2d.vertex",
+            "resources/shaders/text2d_desktop.fragment",
+            zipfilename
+        );
 #endif
+    
+    }
     ZL::CheckGlError(__FILE__, __LINE__);
     if (!loadGlyphs(ttfPath, pixelSize, zipfilename)) return false;
     ZL::CheckGlError(__FILE__, __LINE__);