Can now round-trip a torch from loot to inventory and back.

gui/fsm.cpp

@@ -154,7 +154,6 @@ namespace gui {
             }
 
             $window.setMouseCursorVisible(true);
-            dbc::log("INV_SELECT back to looting");
             state(State::LOOTING);
           }
         } break;
@@ -184,10 +183,6 @@ namespace gui {
   }
 
   void FSM::INV_GRAB(Event ev, std::any data) {
-    dbc::log("INV_SELECT NOT IMPlEMENTED");
-    state(State::LOOTING);
-    return;
-
     using enum Event;
     (void)data;
 
@@ -197,21 +192,48 @@ namespace gui {
         state(State::IDLE);
         break;
       case LOOT_SELECT: {
-          state(State::IDLE);
+          auto gui_id = std::any_cast<DinkyECS::Entity>(data);
+
+          if($grab_source) {
+            if($loot_ui.commit_drop(gui_id)) {
+              $status_ui.commit_grab(*$grab_source);
+              $grab_source = std::nullopt;
+            }
+
+            //$window.setMouseCursorVisible(true);
+            state(State::LOOTING);
+          }
         } break;
       case INV_SELECT: {
-          state(State::IDLE);
+          $grab_source = std::any_cast<DinkyECS::Entity>(data);
+
+          if(auto world_entity = $status_ui.begin_grab(*$grab_source)) {
+            //$window.setMouseCursorVisible(false);
+            $loot_ui.begin_drop(*world_entity);
+          } else {
+            // BUG: need a cancel operation here
+            //$window.setMouseCursorVisible(true);
+            $grab_source = std::nullopt;
+          }
         } break;
       case MOUSE_CLICK:
         mouse_action(false);
         break;
       case MOUSE_MOVE: {
+        if($grab_source) {
+          auto& source = $status_ui.get_grab_source(*$grab_source);
+          source.move($router.position);
+        }
         mouse_action(true);
        } break;
       case MOUSE_DRAG_START: {
           mouse_action(false);
        } break;
       case MOUSE_DRAG: {
+        if($grab_source) {
+          auto& source = $status_ui.get_grab_source(*$grab_source);
+          source.move($router.position);
+        }
         mouse_action(true);
        } break;
       case MOUSE_DROP:
@@ -235,9 +257,8 @@ namespace gui {
         state(State::LOOT_GRAB);
         break;
       case INV_SELECT:
-        dbc::log("INV_SELECT disabled in FSM::LOOTING");
-        state(State::IDLE);
-        // INV_GRAB(ev, data);
+        state(State::INV_GRAB);
+        INV_GRAB(ev, data);
         break;
       case MOUSE_DRAG_START:
       case MOUSE_CLICK:
@@ -313,8 +334,7 @@ namespace gui {
         state(State::LOOTING);
         } break;
       case INV_SELECT:
-        dbc::log("INV_SELECT disabled in IDLE");
-        // state(State::INV_GRAB);
+        state(State::INV_GRAB);
         break;
       case MOUSE_CLICK:
         mouse_action(false);

gui/loot_ui.cpp

@@ -78,10 +78,25 @@ namespace gui {
         auto& sprite = $level.world->get<components::Sprite>(item);
         guecs::GrabSource grabber{sprite.name};
         $gui.set_init<guecs::Sprite>(id, grabber);
+      } else {
+        $gui.set<guecs::DropTarget>(id, {
+           [&, id]() -> bool { return place_slot(id); }
+        });
       }
     }
   }
 
+  bool LootUI::place_slot(DinkyECS::Entity id) {
+    if(contents.size() < INV_SLOTS && !contents.contains(id)) {
+      contents.try_emplace(id, $selected_entity);
+      dbc::log(fmt::format("adding entity {}", id));
+      update();
+      return true;
+    } else {
+      return false;
+    }
+  }
+
   bool LootUI::has_grab_source(DinkyECS::Entity gui_id) {
     return $gui.has<guecs::Sprite>(gui_id);
   }
@@ -109,4 +124,19 @@ namespace gui {
   guecs::DropTarget& LootUI::get_drop_target(DinkyECS::Entity gui_id) {
     return $gui.get<guecs::DropTarget>(gui_id);
   }
+
+  void LootUI::begin_drop(DinkyECS::Entity world_entity) {
+    dbc::log("begin the loot drop");
+    $selected_entity = world_entity;
+  }
+
+  bool LootUI::commit_drop(DinkyECS::Entity gui_id) {
+    if($gui.has<guecs::DropTarget>(gui_id)) {
+      auto& drop = get_drop_target(gui_id);
+      return drop.commit();
+    } else {
+      // NOTE: I think I need to cancel the drop or something?
+      return false;
+    }
+  }
 }

gui/loot_ui.hpp

@@ -13,6 +13,7 @@ namespace gui {
       guecs::UI $gui;
       GameLevel $level;
       std::unordered_map<DinkyECS::Entity, DinkyECS::Entity> contents;
+      DinkyECS::Entity $selected_entity;
 
       LootUI(GameLevel level);
 
@@ -30,7 +31,8 @@ namespace gui {
 
 
       guecs::DropTarget& get_drop_target(DinkyECS::Entity gui_id);
-      void begin_drop(DinkyECS::Entity entity);
-      void commit_drop(DinkyECS::Entity entity);
+      void begin_drop(DinkyECS::Entity world_entity);
+      bool commit_drop(DinkyECS::Entity gui_id);
+      bool place_slot(DinkyECS::Entity id);
   };
 }

gui/status_ui.cpp

@@ -100,13 +100,13 @@ namespace gui {
     return $gui.get<guecs::DropTarget>(gui_id);
   }
 
-  void StatusUI::begin_drop(DinkyECS::Entity entity) {
-    $selected_entity = entity;
+  void StatusUI::begin_drop(DinkyECS::Entity world_entity) {
+    $selected_entity = world_entity;
   }
 
   bool StatusUI::commit_drop(DinkyECS::Entity gui_id) {
+    // BUG: just roll this into DropTarget
     auto& drop = get_drop_target(gui_id);
-
     return drop.commit();
   }
 
@@ -121,11 +121,17 @@ namespace gui {
   }
 
   std::optional<DinkyECS::Entity> StatusUI::begin_grab(DinkyECS::Entity slot_id) {
-    (void)slot_id;
-    return std::nullopt;
+    // BET CHAT: I'll have to change this to a full if-else later
+
+    if(!$slots.contains(slot_id)) return std::nullopt;
+
+    auto& source = get_grab_source(slot_id);
+    source.grab();
+    return $slots.at(slot_id);
   }
 
   void StatusUI::commit_grab(DinkyECS::Entity slot_id) {
-    (void)slot_id;
+    $slots.erase(slot_id);
+    $gui.remove<guecs::Sprite>(slot_id);
   }
 }

gui/status_ui.hpp

@@ -32,7 +32,7 @@ namespace gui {
       void commit_grab(DinkyECS::Entity slot_id);
 
       guecs::DropTarget& get_drop_target(DinkyECS::Entity gui_id);
-      void begin_drop(DinkyECS::Entity entity);
-      bool commit_drop(DinkyECS::Entity entity);
+      void begin_drop(DinkyECS::Entity world_entity);
+      bool commit_drop(DinkyECS::Entity gui_id);
   };
 }