Merge pull request #3 from campenr/feature/damage-enemies

feat: add basic logic to despawn enemies when hit by a projectile

project.godot

@@ -15,6 +15,10 @@ run/main_scene="res://levels/game.tscn"
 config/features=PackedStringArray("4.3", "GL Compatibility")
 config/icon="res://icon.svg"
 
+[display]
+
+window/size/always_on_top=true
+
 [input]
 
 up={

units/enemy.gd

@@ -6,3 +6,7 @@ const SPEED = 150
 
 func _physics_process(delta):
 	position -= transform.x * SPEED * delta
+
+
+func _on_visible_on_screen_notifier_2d_screen_exited():
+	queue_free()

units/enemy.tscn

@@ -4,7 +4,7 @@
 [ext_resource type="Texture2D" uid="uid://dqkvsqmwue64p" path="res://units/PNG_Parts&Spriter_Animation/Ship1/Ship1.png" id="1_ndkjl"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_mvxux"]
-size = Vector2(53, 26)
+size = Vector2(86, 45.5)
 
 [node name="Enemy" type="Node2D"]
 script = ExtResource("1_6h8a0")
@@ -15,5 +15,9 @@ texture = ExtResource("1_ndkjl")
 [node name="Area2D" type="Area2D" parent="."]
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="Area2D"]
-position = Vector2(0.5, -1)
+position = Vector2(0, -0.75)
 shape = SubResource("RectangleShape2D_mvxux")
+
+[node name="VisibleOnScreenNotifier2D" type="VisibleOnScreenNotifier2D" parent="."]
+
+[connection signal="screen_exited" from="VisibleOnScreenNotifier2D" to="." method="_on_visible_on_screen_notifier_2d_screen_exited"]

units/projectile.gd

@@ -2,5 +2,12 @@ extends Area2D
 
 const SPEED = 750
 
+
 func _physics_process(delta):
 	position += transform.x * SPEED * delta
+
+
+func _on_area_entered(area):
+	# TODO: apply effects on enemy hit. For now just despawn.
+	queue_free()
+	area.owner.queue_free()

units/projectile.tscn

@@ -16,3 +16,5 @@ texture = ExtResource("2_lllwu")
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 position = Vector2(5, 2)
 shape = SubResource("CircleShape2D_60ldp")
+
+[connection signal="area_entered" from="." to="." method="_on_area_entered"]