Set up new signals in EventBus; preparing to restructure game start

code.

main.gd

@@ -1,7 +1,6 @@
 extends Node2D
 
 var enemy = preload("res://enemy.tscn")
-var score = 0
 var playing = false
 var enemy_count: int = 0
 
@@ -28,9 +27,9 @@ func spawn_enemies():
 
 
 func _on_enemy_died(value: int):
-    score += value
+    Global.score += value
     enemy_count -= 1
-    $CanvasLayer/UI.update_score(score)
+    $CanvasLayer/UI.update_score(Global.score)
     print_debug(enemy_count)
     if enemy_count == 0:
         print("All enemies defeated!")
@@ -45,8 +44,9 @@ func _on_player_died():
     start_button.show()
 
 func new_game():
-    score = 0
-    $CanvasLayer/UI.update_score(score)
+    Global.score = 0
+    EventBus.initialize_shieldbar.emit()
+    $CanvasLayer/UI.update_score(Global.score)
     $Player.start()
     spawn_enemies()
     playing = true