Add DamageNumberManager and DamageNumber for displaying damage feedback

Autoloads/DamageNumberManager.cs

@@ -0,0 +1,56 @@
+using System.Collections.Generic;
+using Godot;
+using Mr.BrickAdventures.scripts.components;
+using Mr.BrickAdventures.scripts.UI;
+
+namespace Mr.BrickAdventures.Autoloads;
+
+public partial class DamageNumberManager : Node
+{
+    [Export] public PackedScene DamageNumberScene { get; set; }
+    
+    private readonly List<Node> _managedNodes = [];
+    
+    public void Register(Node node)
+    {
+        if (_managedNodes.Contains(node)) return;
+        
+        var healthComponent = node.GetNodeOrNull<HealthComponent>("HealthComponent");
+        if (healthComponent == null)
+        {
+            GD.PrintErr($"Node '{node.Name}' tried to register with DamageNumberManager but has no HealthComponent.");
+            return;
+        }
+
+        healthComponent.HealthChanged += (delta, total) => OnHealthChanged(healthComponent, delta);
+        node.TreeExiting += () => Unregister(node);
+        _managedNodes.Add(node);
+    }
+    
+    public void Unregister(Node node)
+    {
+        var healthComponent = node.GetNodeOrNull<HealthComponent>("HealthComponent");
+        if (healthComponent != null)
+        {
+            healthComponent.HealthChanged -= (delta, _) => OnHealthChanged(healthComponent, delta);
+        }
+        _managedNodes.Remove(node);
+    }
+
+    private void OnHealthChanged(HealthComponent healthComponent, float delta)
+    {
+        if (delta >= 0) return;
+        
+        if (DamageNumberScene == null)
+        {
+            GD.PrintErr("DamageNumberManager: DamageNumberScene is not set!");
+            return;
+        }
+        
+        var damageNumber = DamageNumberScene.Instantiate<DamageNumber>();
+        GetTree().CurrentScene.AddChild(damageNumber);
+        
+        var position = healthComponent.GlobalPosition;
+        damageNumber.ShowDamage(Mathf.Abs(delta), position);
+    }
+}

Autoloads/DamageNumberManager.cs.uid

@@ -0,0 +1 @@
+uid://i06td076ej68

objects/damage_number_manager.tscn

@@ -0,0 +1,8 @@
+[gd_scene load_steps=3 format=3 uid="uid://dpibw6s3dcggr"]
+
+[ext_resource type="Script" uid="uid://i06td076ej68" path="res://Autoloads/DamageNumberManager.cs" id="1_me007"]
+[ext_resource type="PackedScene" uid="uid://c7mp0o2goauyy" path="res://objects/ui/damage_number.tscn" id="2_ghslv"]
+
+[node name="DamageNumberManager" type="Node"]
+script = ExtResource("1_me007")
+DamageNumberScene = ExtResource("2_ghslv")

objects/entities/brick_player.tscn

@@ -216,10 +216,11 @@ Sprite = NodePath("../Graphics/Root/Right Eye")
 FlashDuration = 1.0
 HealthComponent = NodePath("../HealthComponent")
 
-[node name="StompDamageComponent" type="Node" parent="." node_paths=PackedStringArray("Area")]
+[node name="StompDamageComponent" type="Node" parent="." node_paths=PackedStringArray("Area", "Root")]
 script = ExtResource("17_bl1gx")
 Damage = 4.0
 Area = NodePath("../StompDamageArea")
+Root = NodePath("..")
 
 [node name="SkillManager" type="Node" parent="."]
 script = ExtResource("18_6lsog")

objects/ui/damage_number.tscn

@@ -0,0 +1,15 @@
+[gd_scene load_steps=2 format=3 uid="uid://c7mp0o2goauyy"]
+
+[ext_resource type="Script" uid="uid://bbupymh6krrgx" path="res://scripts/UI/DamageNumber.cs" id="1_yv42p"]
+
+[node name="DamageNumber" type="Label"]
+offset_right = 40.0
+offset_bottom = 8.0
+theme_override_constants/outline_size = 1
+theme_override_constants/shadow_outline_size = 3
+theme_override_font_sizes/font_size = 8
+text = "23"
+horizontal_alignment = 1
+vertical_alignment = 1
+script = ExtResource("1_yv42p")
+metadata/_custom_type_script = "uid://bbupymh6krrgx"

project.godot

@@ -40,6 +40,7 @@ LimboConsole="*res://addons/limbo_console/limbo_console.gd"
 DialogueManager="*res://addons/dialogue_manager/dialogue_manager.gd"
 SteamManager="*res://Autoloads/SteamManager.cs"
 AchievementManager="*res://objects/achievement_manager.tscn"
+DamageNumberManager="*res://objects/damage_number_manager.tscn"
 
 [debug]
 

scenes/level_village_4.tscn

@@ -197,10 +197,6 @@ process_mode = 4
 [node name="HitParticles" parent="Brick Player" index="26"]
 process_material = SubResource("ParticleProcessMaterial_lgb3u")
 
-[node name="ProgressiveDamageComponent" parent="Brick Player" index="31"]
-MinJumpHeight = null
-JumpReductionPercentage = null
-
 [node name="Enemies" type="Node2D" parent="."]
 
 [node name="Flying Enemy" parent="Enemies" instance=ExtResource("18_162yw")]

scripts/UI/DamageNumber.cs

@@ -0,0 +1,41 @@
+using System.Globalization;
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.UI;
+
+[GlobalClass]
+public partial class DamageNumber : Label
+{
+    [Export] public float Duration { get; set; } = 0.8f;
+    [Export] public float FallDistance { get; set; } = 40f;
+    [Export] public float HorizontalDrift { get; set; } = 15f;
+    
+    public void ShowDamage(float damageAmount, Vector2 position)
+    {
+        Text = Mathf.Round(damageAmount * 100f).ToString(CultureInfo.InvariantCulture);
+        GlobalPosition = position;
+        
+        var rng = new RandomNumberGenerator();
+        var horizontalOffset = rng.RandfRange(-HorizontalDrift, HorizontalDrift);
+
+        var startPosition = GlobalPosition;
+        var endPosition = GlobalPosition + new Vector2(horizontalOffset, FallDistance);
+
+        var startColor = Colors.White;
+        startColor.A = 1f;
+        Modulate = startColor;
+        
+        var tween = CreateTween();
+        tween.SetParallel();
+
+        tween.TweenProperty(this, "global_position", endPosition, Duration)
+            .SetTrans(Tween.TransitionType.Quad)
+            .SetEase(Tween.EaseType.In);
+            
+        tween.Chain().TweenProperty(this, "modulate:a", 0f, Duration * 0.5f)
+            .SetTrans(Tween.TransitionType.Sine)
+            .SetEase(Tween.EaseType.Out);
+
+        tween.TweenCallback(Callable.From(QueueFree));
+    }
+}

scripts/UI/DamageNumber.cs.uid

@@ -0,0 +1 @@
+uid://bbupymh6krrgx

scripts/components/HealthComponent.cs

@@ -1,5 +1,6 @@
 using System.Threading.Tasks;
 using Godot;
+using Mr.BrickAdventures.Autoloads;
 
 namespace Mr.BrickAdventures.scripts.components;
 
@@ -13,6 +14,14 @@ public partial class HealthComponent : Node2D
     [Signal] public delegate void HealthChangedEventHandler(float delta, float totalHealth);
     [Signal] public delegate void DeathEventHandler();
     
+    private DamageNumberManager _damageNumberManager;
+
+    public override void _Ready()
+    {
+        _damageNumberManager = GetNode<DamageNumberManager>("/root/DamageNumberManager");
+        _damageNumberManager?.Register(Owner);
+    }
+    
     public void SetHealth(float newValue)
     {
         _ = ApplyHealthChange(newValue);