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

code.

enemy.gd

@@ -4,6 +4,8 @@ var bullet_scene = preload("res://enemy_bullet.tscn")
 var start_pos = Vector2.ZERO
 var speed = 0
 
+var exploding = false
+
 @onready var screensize  = get_viewport_rect().size
 
 func start(pos):
@@ -36,6 +38,8 @@ func _process(delta):
 
 
 func explode():
+    if exploding: return
+    exploding = true
     print_debug("Enemy explode!")
     speed = 0
     $AnimationPlayer.play("explode")

event_bus.gd

@@ -5,5 +5,7 @@ extends Node
 signal shield_changed(max_value: int, old_value: int, new_value: int)
 signal player_died()
 signal enemy_died(value: int)
+signal initialize_shieldbar()
+signal start_game()
 
 @warning_ignore_restore("unused_signal") # put any future signals you add between the two ignore annotations

global.gd

@@ -0,0 +1,6 @@
+extends Node
+
+# Global Game variables
+var score: int = 0
+var new_game = true
+var playing = false

global.gd.uid

@@ -0,0 +1 @@
+uid://dhfukspc2nyu0

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

player.gd

@@ -14,6 +14,7 @@ var shield: int = max_shield:
 
 var can_shoot = true
 var shader_active = false
+var clamp_shield = clamp(shield, 0, max_shield)
 
 @onready var screensize = get_viewport_rect().size
 @onready var explosion = $Explosion
@@ -27,8 +28,10 @@ func start():
     set_process(true)
     $Ship.show()
     position = Vector2(screensize.x / 2, screensize.y - 64)
-    shield = max_shield
     $GunCooldown.wait_time = cooldown
+    var old_value = 0
+    set_shield(max_shield)
+    EventBus.shield_changed.emit(max_shield, old_value, shield)
 
 func _process(delta):
     var input = Input.get_vector("left", "right", "up", "down")
@@ -59,17 +62,17 @@ func shoot():
     tween.tween_property($Ship, "position:y", 0, 0.05)
 
 func set_shield(value: int):
-    var old_value: int = shield
-    shield = min(max_shield, value)
+    var old_value = shield
+    shield = clamp(value, 0, max_shield)
     EventBus.shield_changed.emit(max_shield, old_value, shield)
     print("Shield set to:", shield)
     if shield <= 0:
+      EventBus.player_died.emit()
       set_process(false)
       $Ship.hide()
       $Explosion.show()
       $Explosion/AnimationPlayer.play("explosion-one-shot")
       await $Explosion/AnimationPlayer.animation_finished
-      EventBus.player_died.emit()
 
 func _on_gun_cooldown_timeout() -> void:
             can_shoot = true

project.godot

@@ -17,6 +17,7 @@ config/icon="res://icon.svg"
 [autoload]
 
 EventBus="*res://event_bus.gd"
+Global="*res://global.gd"
 
 [display]
 

ui.gd

@@ -8,19 +8,17 @@ var shader_active = false
 func _ready():
     # get_node("Player.Ship").node_ready.connect("shield_ui", self, "_on_shield_ui")
     EventBus.shield_changed.connect(_on_shield_changed)
+    EventBus.initialize_shieldbar.connect(_on_initialize_shieldbar)
 
 func update_score(value):
     score_counter.display_digits(value)
 
 
 func _on_shield_changed(max_value: int, old_value: int, new_value: int) -> void:
-
     shield_bar.max_value = max_value
     shield_bar.value = new_value
-    var shield_depletion = int(old_value - new_value)
-    print("Shield Depletion:", old_value, "-", new_value, " = ", shield_depletion)
     var tween = create_tween()
-    tween.tween_property(shield_bar, "value", new_value - shield_depletion, .20).set_trans(Tween.TRANS_LINEAR)
+    tween.tween_property(shield_bar, "value", new_value, 3).set_trans(Tween.TRANS_LINEAR)
     _on_fx_shield_ui()
 
 
@@ -30,3 +28,9 @@ func _on_fx_shield_ui():
     await get_tree().create_timer(1).timeout
     shader_active = false
     shield_bar.material.set_shader_parameter("toggle", 0.0)
+
+func _on_initialize_shieldbar():
+    print("Shieldbar Initializing!")
+    # var tween = create_tween()
+    # tween.tween_property(shield_bar, "value", 10, 3).set_trans(Tween.TRANS_LINEAR)
+    # print("Tweens played!")

ui.tscn

@@ -29,7 +29,6 @@ material = SubResource("ShaderMaterial_n5ude")
 custom_minimum_size = Vector2(80, 16)
 layout_mode = 2
 step = 0.0
-value = 100.0
 nine_patch_stretch = true
 stretch_margin_left = 3
 stretch_margin_top = 3