Example damage label

battle/Battle.gd

@@ -55,5 +55,11 @@ func startBattle(params) -> void:
   if !battleCutscene.running:
     battleCutscene.start()
 
+  # Wait 3 seconds then simulate damage for testing
+  var fighter = fighterMap[BattlePosition.RIGHT_TOP_FRONT]
+  while true:
+    await get_tree().create_timer(0.3).timeout
+    fighter.damage(10, false)
+
 func getFighterAtPosition(battlePos:BattlePosition) -> BattleFighter:
   return fighterMap.get(battlePos, null)

battle/BattleScene.tscn

@@ -29,52 +29,52 @@ text = "Battle"
 [node name="Fighters" type="Node" parent="."]
 
 [node name="LeftTopBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -5, 3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -4, 2, 0)
 battlePosition = 0
 
 [node name="LeftTopFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -3, 3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2, 2, 0)
 battlePosition = 1
 
 [node name="LeftMiddleBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -5, 0, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -4, 0, 0)
 battlePosition = 2
 
 [node name="LeftMiddleFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2.754, 0, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2, 0, 0)
 
 [node name="LeftBottomBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -5, -3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -4, -2, 0)
 battlePosition = 4
 
 [node name="LeftBottomFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -3, -3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -2, -2, 0)
 battlePosition = 5
 
 [node name="RightTopFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 3, 3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 2, 0)
 battlePosition = 7
 
 [node name="RightTopBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 5, 3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 4, 2, 0)
 battlePosition = 6
 
 [node name="RightMiddleFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 3, 0, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 2, 0, 0)
 battlePosition = 9
 
 [node name="RightMiddleBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 5, 0, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 4, 0, 0)
 battlePosition = 8
 
 [node name="RightBottomFront" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 3, -3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 2, -2, 0)
 battlePosition = 11
 
 [node name="RightBottomBack" parent="Fighters" instance=ExtResource("1_abr1f")]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 5, -3, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 4, -2, 0)
 battlePosition = 10
 
 [node name="Camera3D" type="Camera3D" parent="."]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 6.9021)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 3.79103)
 current = true

battle/fighter/BattleFighter.gd

@@ -36,13 +36,13 @@ var luck:int
 # Equipment
 
 # Signals
-signal healthChanged(difference:int)
+signal healthChanged(difference:int, crit:bool)
 signal mpChanged(difference:int)
 signal statusChanged(oldStatus:Status, newStatus:Status)
 
 func _init(params:Dictionary) -> void:
-  self.maxHealth = params.get('max_health', 100)
-  self.maxMp = params.get('max_mp', 50)
+  self.maxHealth = params.get('maxHealth', 100)
+  self.maxMp = params.get('maxMp', 50)
   self.attack = params.get('attack', 10)
   self.defense = params.get('defense', 5)
   self.speed = params.get('speed', 5)
@@ -54,12 +54,12 @@ func _init(params:Dictionary) -> void:
   self.health = self.maxHealth
   self.mp = self.maxMp
 
-func damage(amount:int) -> void:
+func damage(amount:int, crit:bool) -> void:
   assert(amount > 0)
   if status == Status.DEAD:
     return
   health = max(health - amount, 0)
-  healthChanged.emit(-amount)
+  healthChanged.emit(-amount, crit)
   if health == 0:
     var oldStatus = status
     status = Status.DEAD
@@ -70,7 +70,7 @@ func heal(amount:int) -> void:
   if status == Status.DEAD:
     return
   health = min(health + amount, maxHealth)
-  healthChanged.emit(amount)
+  healthChanged.emit(amount, false)
 
 func revive(health:int) -> void:
   assert(health > 0)

battle/fighter/BattleFighterScene.gd

@@ -1,18 +1,25 @@
 class_name BattleFighterScene extends Node3D
 
 @export var battlePosition:BattleSingleton.BattlePosition = BattleSingleton.BattlePosition.LEFT_MIDDLE_FRONT
+@export var damageLabels:Node3D
+@export var damageLabelPreset:PackedScene
+
+var currentFighter:BattleFighter = null
 
 func _getFighter() -> BattleFighter:
   return BATTLE.getFighterAtPosition(self.battlePosition)
 
 func _updateFighter() -> void:
-  var fighter = _getFighter()
+  if currentFighter != null:
+    currentFighter.healthChanged.disconnect(onDamageTaken)
 
-  if fighter == null:
+  currentFighter = _getFighter()
+  if currentFighter == null:
     self.visible = false
     return
 
   # Set up the visual representation of the fighter here
+  currentFighter.healthChanged.connect(onDamageTaken)
   self.visible = true
 
 func _enter_tree() -> void:
@@ -24,3 +31,7 @@ func _exit_tree() -> void:
 
 func onFightersChanged() -> void:
   _updateFighter()
+
+func onDamageTaken(amount:int, crit:bool) -> void:
+  var damageLabel = damageLabelPreset.instantiate() as Label3D
+  damageLabel.showDamage(damageLabels, amount, crit)

battle/fighter/BattleFighterScene.tscn

@@ -1,15 +1,18 @@
-[gd_scene load_steps=5 format=3 uid="uid://d1xyb0hdf1yeh"]
+[gd_scene load_steps=6 format=3 uid="uid://d1xyb0hdf1yeh"]
 
 [ext_resource type="Script" uid="uid://bgycdhsouwhwt" path="res://battle/fighter/BattleFighterScene.gd" id="1_veb1i"]
 [ext_resource type="SpriteFrames" uid="uid://cqqkm34a46ri6" path="res://battle/fighter/idk/green_dragon_frames.tres" id="2_e55p4"]
+[ext_resource type="PackedScene" uid="uid://baxswkivvo5rs" path="res://battle/ui/DamageLabel.tscn" id="2_lciku"]
 
 [sub_resource type="BoxMesh" id="BoxMesh_veb1i"]
 
 [sub_resource type="StandardMaterial3D" id="StandardMaterial3D_e55p4"]
 shading_mode = 0
 
-[node name="BattleFighterScene" type="Node3D"]
+[node name="BattleFighterScene" type="Node3D" node_paths=PackedStringArray("damageLabels")]
 script = ExtResource("1_veb1i")
+damageLabels = NodePath("Labels")
+damageLabelPreset = ExtResource("2_lciku")
 metadata/_custom_type_script = "uid://bgycdhsouwhwt"
 
 [node name="MeshInstance3D" type="MeshInstance3D" parent="."]
@@ -18,6 +21,9 @@ mesh = SubResource("BoxMesh_veb1i")
 surface_material_override/0 = SubResource("StandardMaterial3D_e55p4")
 
 [node name="AnimatedSprite3D" type="AnimatedSprite3D" parent="."]
+billboard = 2
 sprite_frames = ExtResource("2_e55p4")
 animation = &"idle"
 frame_progress = 0.746159
+
+[node name="Labels" type="Node3D" parent="."]

battle/fighter/idk/green_dragon.tres

@@ -4,4 +4,4 @@
 
 [resource]
 atlas = ExtResource("1_s00hx")
-region = Rect2(16, 45.6621, 66, 83.3379)
+region = Rect2(16, 45, 66, 83)

battle/fighter/idk/green_dragon_frames.tres

@@ -4,7 +4,10 @@
 
 [resource]
 animations = [{
-"frames": [],
+"frames": [{
+"duration": 1.0,
+"texture": ExtResource("1_vtgsa")
+}],
 "loop": true,
 "name": &"attack",
 "speed": 5.0

battle/ui/DamageLabel.gd

@@ -0,0 +1,40 @@
+class_name DamageLabel extends Label3D
+
+@export var timer:Timer
+@export var speed:Vector3 = Vector3(0, 1, 0)
+
+func onTimeout() -> void:
+  self.visible = false
+  queue_free()
+  print("Damage label removed")
+
+func _process(delta: float) -> void:
+  self.position += speed * delta
+
+func showDamage(
+  parent:Node3D,
+  amount:int,
+  isCritical:bool
+) -> void:
+  if amount == 0:
+    return
+
+  text = str(amount)
+
+  if amount > 0:
+    # Healing
+    modulate = Color.GREEN
+    outline_modulate = Color.TRANSPARENT
+  elif isCritical:
+    # Crit
+    modulate = Color.RED
+    outline_modulate = Color.BLACK
+  else:
+    # DMG
+    modulate = Color.RED
+    outline_modulate = Color.TRANSPARENT
+
+  parent.add_child(self)
+  self.position = Vector3.ZERO
+
+  timer.timeout.connect(onTimeout)

battle/ui/DamageLabel.gd.uid

@@ -0,0 +1 @@
+uid://b86wqbqmsrv5b

battle/ui/DamageLabel.tscn

@@ -0,0 +1,16 @@
+[gd_scene load_steps=2 format=3 uid="uid://baxswkivvo5rs"]
+
+[ext_resource type="Script" uid="uid://b86wqbqmsrv5b" path="res://battle/ui/DamageLabel.gd" id="1_6dg8x"]
+
+[node name="DamageLabel" type="Label3D" node_paths=PackedStringArray("timer")]
+billboard = 1
+render_priority = 1
+outline_modulate = Color(1, 0, 0, 1)
+text = "-%%%%%"
+script = ExtResource("1_6dg8x")
+timer = NodePath("Timer")
+metadata/_custom_type_script = "uid://b86wqbqmsrv5b"
+
+[node name="Timer" type="Timer" parent="."]
+one_shot = true
+autostart = true