Introduced costum focus handling to global state

src/singletons/global_state.gd

@@ -6,4 +6,36 @@ var simplified_navigation:bool = false
 var enable_subtitles: bool = false
 var reduce_motion: bool = false
 var show_content_notes: bool = false
-var show_prompts: bool = false
+var provide_summaries: bool = false
+var allow_skipping: bool = false
+
+var current_focus: Node
+
+func request_focus(new_focus: Node, yoink:bool = false) -> bool:
+    if (current_focus == null or yoink) and new_focus != null:
+        current_focus = new_focus
+        return true
+    else: return false
+    
+func pass_focus_to(to: Node) -> bool:
+    if "has_focus" in to:
+        if not current_focus == null:
+            drop_focus_of(current_focus)
+        to.has_focus = true
+        return true
+    else: return false
+
+func drop_own_focus(node: Node):
+    if current_focus == node:
+        current_focus = null
+    else:
+        push_error(node.name + " attempted to drop focus while not owning it!")
+
+func drop_focus_of(node: Node):
+    if current_focus == node:
+        current_focus = null
+        if node.has_focus: node.has_focus = false
+    else:
+        node.has_focus = false
+        push_warning("Attempted to drop Focus for " + node.name + " while it wasn't focused!")
+