basic grid display

app/src/main/java/gui/Main.java

@@ -1,25 +1,44 @@
 package gui;
 
+import java.util.Random;
+
 import imgui.ImGui;
+import imgui.ImVec2;
 import imgui.app.Application;
 import imgui.app.Configuration;
 
 public class Main extends Application {
+
+    // temp thing
+    private static int[] values = new int[9 * 9];
+
     @Override
     protected void configure(Configuration config) {
         config.setTitle("Let's play sudoku!");
     }
-    
+
     @Override
     protected void initImGui(Configuration config) {
         super.initImGui(config);
         ImGui.getIO().getFonts().addFontFromFileTTF("comic.ttf", 50.0f);
+        Random r = new Random();
+        for (int i = 0; i < 9 * 9; i++) {
+            values[i] = r.nextInt(9) + 1;
+        }
     }
 
     @Override
     public void process() {
-        ImGui.begin("Window");
-        ImGui.text("Hello, World!");
+        ImGui.begin("Sudoku Window");
+        for (int y = 0; y < 9; y++) {
+            for (int x = 0; x < 9; x++) {
+                if (x > 0)
+                    ImGui.sameLine();
+                ImGui.pushID(y * 9 + x);
+                ImGui.selectable(Integer.toString(values[y * 9 + x]), false, 0, new ImVec2(50, 50));
+                ImGui.popID();
+            }
+        }
         ImGui.end();
         // ImGui.showDemoWindow();
     }