feat(dolphin): swim controller + third-person camera + HUD stats

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

project.godot

@@ -14,7 +14,78 @@ window/size/viewport_height=720
 window/size/mode=2
 
 [input]
-; Bindings custom — à compléter plus tard par le module dauphin
+
+move_forward={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":87,"key_label":0,"unicode":119,"location":0,"echo":false,"script":null)
+]
+}
+
+move_backward={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":83,"key_label":0,"unicode":115,"location":0,"echo":false,"script":null)
+]
+}
+
+strafe_left={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":65,"key_label":0,"unicode":97,"location":0,"echo":false,"script":null)
+]
+}
+
+strafe_right={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":68,"key_label":0,"unicode":100,"location":0,"echo":false,"script":null)
+]
+}
+
+ascend={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":32,"key_label":0,"unicode":32,"location":0,"echo":false,"script":null)
+]
+}
+
+descend={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":16777237,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+
+boost={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":16777238,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+
+echolocate={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":69,"key_label":0,"unicode":101,"location":0,"echo":false,"script":null)
+]
+}
+
+break_block={
+"deadzone": 0.5,
+"events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"button_index":1,"factor":1.0,"script":null)
+]
+}
+
+place_block={
+"deadzone": 0.5,
+"events": [Object(InputEventMouseButton,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"button_index":2,"factor":1.0,"script":null)
+]
+}
+
+toggle_inventory={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":16777217,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
+
+escape={
+"deadzone": 0.5,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":0,"physical_keycode":16777217,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
 
 [autoload]
 BlockDatabase="*res://scripts/world/BlockDatabase.gd"

scenes/Dolphin.tscn

@@ -0,0 +1,176 @@
+[gd_scene load_steps=22 format=3 uid="uid://dolphin_main"]
+
+[ext_resource type="Script" path="res://scripts/dolphin/DolphinController.gd" id="1_controller"]
+[ext_resource type="Script" path="res://scripts/dolphin/HUD.gd" id="2_hud"]
+[ext_resource type="Script" path="res://scripts/dolphin/EcholocationPulse.gd" id="3_echo"]
+
+[sub_resource type="CapsuleShape3D" id="1_colshape"]
+radius = 0.4
+height = 2.0
+
+[sub_resource type="CapsuleMesh" id="2_body_mesh"]
+radius = 0.4
+height = 2.0
+
+[sub_resource type="StandardMaterial3D" id="3_body_mat"]
+albedo_color = Color(0.29, 0.478, 0.584, 1)
+
+[sub_resource type="CapsuleMesh" id="4_belly_mesh"]
+radius = 0.35
+height = 1.6
+
+[sub_resource type="StandardMaterial3D" id="5_belly_mat"]
+albedo_color = Color(0.91, 0.933, 0.949, 1)
+
+[sub_resource type="CapsuleMesh" id="6_tail_mesh"]
+radius = 0.2
+height = 0.9
+
+[sub_resource type="StandardMaterial3D" id="7_tail_mat"]
+albedo_color = Color(0.29, 0.478, 0.584, 1)
+
+[sub_resource type="PrismMesh" id="8_fin_mesh"]
+size = Vector3(0.15, 0.4, 0.08)
+
+[sub_resource type="StandardMaterial3D" id="9_fin_mat"]
+albedo_color = Color(0.29, 0.478, 0.584, 1)
+
+[sub_resource type="CapsuleMesh" id="10_pec_mesh"]
+radius = 0.1
+height = 0.5
+
+[sub_resource type="StandardMaterial3D" id="11_pec_mat"]
+albedo_color = Color(0.29, 0.478, 0.584, 1)
+
+[sub_resource type="StyleBoxFlat" id="12_panel_style"]
+bg_color = Color(0.05, 0.05, 0.05, 0.7)
+corner_radius_top_left = 10
+corner_radius_top_right = 10
+corner_radius_bottom_left = 10
+corner_radius_bottom_right = 10
+
+[node name="Dolphin" type="CharacterBody3D"]
+script = ExtResource("1_controller")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+shape = SubResource("1_colshape")
+
+[node name="DolphinBody" type="Node3D" parent="."]
+rotation = Vector3(0, 0, 0)
+
+[node name="Body" type="MeshInstance3D" parent="DolphinBody"]
+rotation = Vector3(1.5708, 0, 0)
+mesh = SubResource("2_body_mesh")
+surface_material_override/0 = SubResource("3_body_mat")
+
+[node name="Belly" type="MeshInstance3D" parent="DolphinBody"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -0.05, 0.15)
+rotation = Vector3(1.5708, 0, 0)
+mesh = SubResource("4_belly_mesh")
+surface_material_override/0 = SubResource("5_belly_mat")
+
+[node name="Tail" type="MeshInstance3D" parent="DolphinBody"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -1.1)
+rotation = Vector3(1.5708, 0, 0)
+mesh = SubResource("6_tail_mesh")
+surface_material_override/0 = SubResource("7_tail_mat")
+
+[node name="DorsalFin" type="MeshInstance3D" parent="DolphinBody"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.45, -0.1)
+mesh = SubResource("8_fin_mesh")
+surface_material_override/0 = SubResource("9_fin_mat")
+
+[node name="PecFinLeft" type="MeshInstance3D" parent="DolphinBody"]
+transform = Transform3D(1, 0, 0, 0, 0.866, -0.5, 0, 0.5, 0.866, -0.45, 0.0, 0.1)
+mesh = SubResource("10_pec_mesh")
+surface_material_override/0 = SubResource("11_pec_mat")
+
+[node name="PecFinRight" type="MeshInstance3D" parent="DolphinBody"]
+transform = Transform3D(1, 0, 0, 0, 0.866, 0.5, 0, -0.5, 0.866, 0.45, 0.0, 0.1)
+mesh = SubResource("10_pec_mesh")
+surface_material_override/0 = SubResource("11_pec_mat")
+
+[node name="CameraPivot" type="Node3D" parent="."]
+
+[node name="SpringArm" type="SpringArm3D" parent="CameraPivot"]
+spring_length = 3.5
+rotation = Vector3(0, 3.14159, 0)
+
+[node name="Camera" type="Camera3D" parent="CameraPivot/SpringArm"]
+
+[node name="EcholocationPulse" type="Node3D" parent="."]
+script = ExtResource("3_echo")
+
+[node name="HUD" type="CanvasLayer" parent="."]
+script = ExtResource("2_hud")
+
+[node name="Panel" type="PanelContainer" parent="HUD"]
+anchors_preset = 0
+anchor_left = 0.0
+anchor_top = 1.0
+anchor_right = 0.0
+anchor_bottom = 1.0
+offset_left = 16.0
+offset_top = -160.0
+offset_right = 220.0
+offset_bottom = -16.0
+theme_override_styles/panel = SubResource("12_panel_style")
+
+[node name="VBox" type="VBoxContainer" parent="HUD/Panel"]
+layout_mode = 2
+theme_override_constants/separation = 8
+offset_left = 10.0
+offset_top = 10.0
+offset_right = -10.0
+offset_bottom = -10.0
+
+[node name="OxygenRow" type="HBoxContainer" parent="HUD/Panel/VBox"]
+layout_mode = 2
+
+[node name="OxygenLabel" type="Label" parent="HUD/Panel/VBox/OxygenRow"]
+layout_mode = 2
+text = "O2:"
+custom_minimum_size = Vector2(36, 0)
+
+[node name="OxygenBar" type="ProgressBar" parent="HUD/Panel/VBox/OxygenRow"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
+custom_minimum_size = Vector2(130, 18)
+max_value = 100.0
+value = 100.0
+show_percentage = false
+
+[node name="HealthRow" type="HBoxContainer" parent="HUD/Panel/VBox"]
+layout_mode = 2
+
+[node name="HealthLabel" type="Label" parent="HUD/Panel/VBox/HealthRow"]
+layout_mode = 2
+text = "HP:"
+custom_minimum_size = Vector2(36, 0)
+
+[node name="HealthBar" type="ProgressBar" parent="HUD/Panel/VBox/HealthRow"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
+custom_minimum_size = Vector2(130, 18)
+max_value = 100.0
+value = 100.0
+show_percentage = false
+
+[node name="HungerRow" type="HBoxContainer" parent="HUD/Panel/VBox"]
+layout_mode = 2
+
+[node name="HungerLabel" type="Label" parent="HUD/Panel/VBox/HungerRow"]
+layout_mode = 2
+text = "Food:"
+custom_minimum_size = Vector2(36, 0)
+
+[node name="HungerBar" type="ProgressBar" parent="HUD/Panel/VBox/HungerRow"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
+custom_minimum_size = Vector2(130, 18)
+max_value = 100.0
+value = 100.0
+show_percentage = false

scripts/dolphin/DolphinController.gd

@@ -0,0 +1,261 @@
+extends CharacterBody3D
+
+# --- Exported Properties ---
+@export var swim_speed: float = 8.0
+@export var boost_multiplier: float = 2.5
+@export var mouse_sensitivity: float = 0.002
+@export var max_oxygen: float = 100.0
+@export var oxygen_drain: float = 0.8
+@export var max_health: float = 100.0
+@export var max_hunger: float = 100.0
+@export var hunger_drain: float = 0.3
+@export var water_ceiling_y: float = 60.0
+
+# --- Signals ---
+signal block_break_requested(hit_position: Vector3, block_normal: Vector3)
+signal block_place_requested(hit_position: Vector3, block_normal: Vector3)
+signal hotbar_scroll(direction: int)
+signal echolocation_triggered(position: Vector3, radius: float)
+signal stats_changed(oxygen: float, health: float, hunger: float)
+signal player_died()
+
+# --- Internal State ---
+var oxygen: float
+var health: float
+var hunger: float
+var is_boosting: bool = false
+var is_echolocating: bool = false
+
+var _yaw: float = 0.0
+var _pitch: float = 0.0
+var _time: float = 0.0
+var _is_dead: bool = false
+
+@onready var _camera_pivot: Node3D = $CameraPivot
+@onready var _spring_arm: SpringArm3D = $CameraPivot/SpringArm
+@onready var _camera: Camera3D = $CameraPivot/SpringArm/Camera
+@onready var _dolphin_body: Node3D = $DolphinBody
+@onready var _echo_pulse: Node3D = $EcholocationPulse
+
+
+func _ready() -> void:
+	oxygen = max_oxygen
+	health = max_health
+	hunger = max_hunger
+	Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
+	_setup_input_actions()
+	_emit_stats()
+
+
+func _setup_input_actions() -> void:
+	var actions: Dictionary = {
+		"move_forward": KEY_W,
+		"move_backward": KEY_S,
+		"strafe_left": KEY_A,
+		"strafe_right": KEY_D,
+		"ascend": KEY_SPACE,
+		"descend": KEY_SHIFT,
+		"boost": KEY_CTRL,
+		"echolocate": KEY_E,
+		"toggle_inventory": KEY_TAB,
+	}
+	for action_name: String in actions:
+		if not InputMap.has_action(action_name):
+			InputMap.add_action(action_name)
+			var ev := InputEventKey.new()
+			ev.keycode = actions[action_name]
+			InputMap.action_add_event(action_name, ev)
+
+	var mouse_actions: Dictionary = {
+		"break_block": MOUSE_BUTTON_LEFT,
+		"place_block": MOUSE_BUTTON_RIGHT,
+	}
+	for action_name: String in mouse_actions:
+		if not InputMap.has_action(action_name):
+			InputMap.add_action(action_name)
+			var ev := InputEventMouseButton.new()
+			ev.button_index = mouse_actions[action_name]
+			InputMap.action_add_event(action_name, ev)
+
+	if not InputMap.has_action("escape"):
+		InputMap.add_action("escape")
+		var ev := InputEventKey.new()
+		ev.keycode = KEY_ESCAPE
+		InputMap.action_add_event("escape", ev)
+
+
+func _input(event: InputEvent) -> void:
+	if event is InputEventMouseMotion and Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED:
+		var motion := event as InputEventMouseMotion
+		_yaw -= motion.relative.x * mouse_sensitivity
+		_pitch -= motion.relative.y * mouse_sensitivity
+		_pitch = clamp(_pitch, -PI * 0.45, PI * 0.45)
+		rotation.y = _yaw
+		_camera_pivot.rotation.x = _pitch
+
+	if event is InputEventMouseButton:
+		var mb := event as InputEventMouseButton
+		if mb.pressed:
+			if mb.button_index == MOUSE_BUTTON_WHEEL_UP:
+				hotbar_scroll.emit(1)
+			elif mb.button_index == MOUSE_BUTTON_WHEEL_DOWN:
+				hotbar_scroll.emit(-1)
+
+	if event.is_action_pressed("break_block"):
+		_do_raycast_break()
+	if event.is_action_pressed("place_block"):
+		_do_raycast_place()
+	if event.is_action_pressed("echolocate"):
+		_trigger_echolocation()
+	if event.is_action_pressed("escape"):
+		if Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED:
+			Input.set_mouse_mode(Input.MOUSE_MODE_VISIBLE)
+		else:
+			Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
+
+
+func _physics_process(delta: float) -> void:
+	if _is_dead:
+		return
+
+	_time += delta
+	_update_stats(delta)
+	_update_movement(delta)
+	_animate_body()
+
+	if position.y > water_ceiling_y:
+		position.y = water_ceiling_y
+		velocity.y = min(velocity.y, 0.0)
+
+
+func _update_movement(delta: float) -> void:
+	is_boosting = Input.is_action_pressed("boost")
+	var speed: float = swim_speed * (boost_multiplier if is_boosting else 1.0)
+
+	var forward: Vector3 = -global_transform.basis.z
+	var right: Vector3 = global_transform.basis.x
+
+	# Recompute forward/right using camera pitch for intuitive swim direction
+	var cam_basis: Basis = _camera_pivot.global_transform.basis
+	var swim_forward: Vector3 = -cam_basis.z
+	var swim_right: Vector3 = cam_basis.x
+
+	var input_dir: Vector3 = Vector3.ZERO
+	if Input.is_action_pressed("move_forward"):
+		input_dir += swim_forward
+	if Input.is_action_pressed("move_backward"):
+		input_dir -= swim_forward
+	if Input.is_action_pressed("strafe_right"):
+		input_dir += swim_right
+	if Input.is_action_pressed("strafe_left"):
+		input_dir -= swim_right
+	if Input.is_action_pressed("ascend"):
+		input_dir += Vector3.UP
+	if Input.is_action_pressed("descend"):
+		input_dir += Vector3.DOWN
+
+	if input_dir.length_squared() > 0.0:
+		input_dir = input_dir.normalized()
+
+	var target_velocity: Vector3 = input_dir * speed
+	velocity = velocity.lerp(target_velocity, 4.0 * delta)
+
+	move_and_slide()
+
+
+func _update_stats(delta: float) -> void:
+	var changed: bool = false
+
+	# Hunger drain
+	hunger = max(0.0, hunger - hunger_drain * delta)
+	changed = true
+
+	# Oxygen
+	if position.y < 55.0:
+		oxygen = max(0.0, oxygen - oxygen_drain * delta)
+	else:
+		oxygen = min(max_oxygen, oxygen + 20.0 * delta)
+
+	# Health drain from oxygen/hunger
+	if oxygen <= 0.0:
+		health = max(0.0, health - 5.0 * delta)
+		changed = true
+	if hunger <= 0.0:
+		health = max(0.0, health - 1.0 * delta)
+		changed = true
+
+	if changed:
+		_emit_stats()
+
+	if health <= 0.0 and not _is_dead:
+		_die()
+
+
+func _emit_stats() -> void:
+	stats_changed.emit(oxygen, health, hunger)
+
+
+func _die() -> void:
+	_is_dead = true
+	player_died.emit()
+	# Respawn after short delay
+	await get_tree().create_timer(2.0).timeout
+	_respawn()
+
+
+func _respawn() -> void:
+	position = Vector3(0.0, 50.0, 0.0)
+	velocity = Vector3.ZERO
+	oxygen = max_oxygen
+	health = max_health
+	hunger = max_hunger
+	_is_dead = false
+	_emit_stats()
+
+
+func _animate_body() -> void:
+	if not is_instance_valid(_dolphin_body):
+		return
+	# Body bob
+	_dolphin_body.position.y = sin(_time * 2.5) * 0.05
+	# Tail wag via last child if present
+	var child_count: int = _dolphin_body.get_child_count()
+	if child_count > 1:
+		var tail_node: Node3D = _dolphin_body.get_child(child_count - 1) as Node3D
+		if tail_node != null:
+			tail_node.rotation.y = sin(_time * 3.0) * 0.3
+
+
+func _do_raycast_break() -> void:
+	var result: Dictionary = _raycast(5.0)
+	if not result.is_empty():
+		block_break_requested.emit(result["position"], result["normal"])
+
+
+func _do_raycast_place() -> void:
+	var result: Dictionary = _raycast(5.0)
+	if not result.is_empty():
+		block_place_requested.emit(result["position"], result["normal"])
+
+
+func _raycast(reach: float) -> Dictionary:
+	if not is_instance_valid(_camera):
+		return {}
+	var space_state: PhysicsDirectSpaceState3D = get_world_3d().direct_space_state
+	var cam_pos: Vector3 = _camera.global_position
+	var cam_fwd: Vector3 = -_camera.global_transform.basis.z
+	var query := PhysicsRayQueryParameters3D.create(cam_pos, cam_pos + cam_fwd * reach)
+	query.exclude = [self]
+	var result: Dictionary = space_state.intersect_ray(query)
+	return result
+
+
+func _trigger_echolocation() -> void:
+	if is_echolocating:
+		return
+	is_echolocating = true
+	echolocation_triggered.emit(global_position, 20.0)
+	if is_instance_valid(_echo_pulse):
+		_echo_pulse.trigger()
+	await get_tree().create_timer(1.2).timeout
+	is_echolocating = false

scripts/dolphin/EcholocationPulse.gd

@@ -0,0 +1,46 @@
+extends Node3D
+
+const MAX_RADIUS: float = 20.0
+const DURATION: float = 1.0
+
+signal pulse_finished()
+
+
+func trigger() -> void:
+	var mesh_instance := MeshInstance3D.new()
+	var sphere_mesh := SphereMesh.new()
+	sphere_mesh.radius = 0.1
+	sphere_mesh.height = 0.2
+	mesh_instance.mesh = sphere_mesh
+
+	var mat := StandardMaterial3D.new()
+	mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
+	mat.albedo_color = Color(0.2, 0.85, 1.0, 0.5)
+	mat.emission_enabled = true
+	mat.emission = Color(0.1, 0.6, 1.0)
+	mat.emission_energy_multiplier = 1.5
+	mat.cull_mode = BaseMaterial3D.CULL_DISABLED
+	mesh_instance.material_override = mat
+
+	add_child(mesh_instance)
+
+	var tween: Tween = create_tween()
+	tween.set_parallel(true)
+	tween.tween_method(
+		func(r: float) -> void:
+			mesh_instance.scale = Vector3(r, r, r),
+		0.1,
+		MAX_RADIUS,
+		DURATION
+	)
+	tween.tween_method(
+		func(a: float) -> void:
+			mat.albedo_color = Color(0.2, 0.85, 1.0, a),
+		0.5,
+		0.0,
+		DURATION
+	)
+	tween.chain().tween_callback(func() -> void:
+		mesh_instance.queue_free()
+		pulse_finished.emit()
+	)

scripts/dolphin/HUD.gd

@@ -0,0 +1,39 @@
+extends CanvasLayer
+
+@onready var _oxygen_bar: ProgressBar = %OxygenBar
+@onready var _health_bar: ProgressBar = %HealthBar
+@onready var _hunger_bar: ProgressBar = %HungerBar
+
+
+func _ready() -> void:
+	_style_bar(_oxygen_bar, Color(0.31, 0.76, 0.97))
+	_style_bar(_health_bar, Color(0.91, 0.30, 0.24))
+	_style_bar(_hunger_bar, Color(0.95, 0.61, 0.07))
+
+
+func _style_bar(bar: ProgressBar, color: Color) -> void:
+	var style := StyleBoxFlat.new()
+	style.bg_color = color
+	style.corner_radius_top_left = 4
+	style.corner_radius_top_right = 4
+	style.corner_radius_bottom_left = 4
+	style.corner_radius_bottom_right = 4
+	bar.add_theme_stylebox_override("fill", style)
+
+	var bg_style := StyleBoxFlat.new()
+	bg_style.bg_color = Color(0.1, 0.1, 0.1, 0.6)
+	bg_style.corner_radius_top_left = 4
+	bg_style.corner_radius_top_right = 4
+	bg_style.corner_radius_bottom_left = 4
+	bg_style.corner_radius_bottom_right = 4
+	bar.add_theme_stylebox_override("background", bg_style)
+
+
+func connect_to_dolphin(dolphin: CharacterBody3D) -> void:
+	dolphin.stats_changed.connect(_on_stats_changed)
+
+
+func _on_stats_changed(oxygen: float, hp: float, hunger: float) -> void:
+	_oxygen_bar.value = oxygen
+	_health_bar.value = hp
+	_hunger_bar.value = hunger