add "Show Hitboxes" to the debug panel

src/frontend/debug_panel.cpp

@@ -33,6 +33,7 @@ static std::shared_ptr<Label> create_label(wstringsupplier supplier) {
     return label;
 }
 
+// TODO: move to xml
 std::shared_ptr<UINode> create_debug_panel(
     Engine* engine, 
     Level* level, 
@@ -181,6 +182,18 @@ std::shared_ptr<UINode> create_debug_panel(
         });
         panel->add(checkbox);
     }
+    {
+        auto checkbox = std::make_shared<FullCheckBox>(
+            L"Show Hitboxes", glm::vec2(400, 24)
+        );
+        checkbox->setSupplier([=]() {
+            return WorldRenderer::showEntitiesDebug;
+        });
+        checkbox->setConsumer([=](bool checked) {
+            WorldRenderer::showEntitiesDebug = checked;
+        });
+        panel->add(checkbox);
+    }
     panel->refresh();
     return panel;
 }

src/graphics/render/WorldRenderer.cpp

@@ -44,6 +44,7 @@
 #include <glm/gtc/matrix_transform.hpp>
 
 bool WorldRenderer::showChunkBorders = false;
+bool WorldRenderer::showEntitiesDebug = false;
 
 WorldRenderer::WorldRenderer(Engine* engine, LevelFrontend* frontend, Player* player) 
   : engine(engine), 
@@ -232,7 +233,7 @@ void WorldRenderer::renderLines(Camera* camera, Shader* linesShader) {
     if (player->selection.vox.id != BLOCK_VOID) {
         renderBlockSelection();
     }
-    if (player->debug) {
+    if (player->debug && showEntitiesDebug) {
         level->entities->renderDebug(*lineBatch, *frustumCulling);
     }
     lineBatch->render();

src/graphics/render/WorldRenderer.hpp

@@ -63,6 +63,7 @@ class WorldRenderer {
     );
 public:
     static bool showChunkBorders;
+    static bool showEntitiesDebug;
 
     WorldRenderer(Engine* engine, LevelFrontend* frontend, Player* player);
     ~WorldRenderer();