added an actual hp/damage system to the witch and enemies game over screen is still missing the game just restarts (#11)

Co-authored-by: Jaro <jaro@MacBook.local>
Reviewed-on: #11

scripts/blue_slime.gd

@@ -1,6 +1,5 @@
 extends EnemyBase
 
-
 func _ready() -> void:
 	super()
 	speed = 15.0
@@ -8,6 +7,7 @@ func _ready() -> void:
 	$Area2D.body_entered.connect(_on_area_2d_body_entered)
 
 func _process(delta: float) -> void:
+	super._process(delta)
 	if is_dying or is_hurt:
 		return
 	_chase_witch()

scripts/enemy_base.gd

@@ -4,9 +4,12 @@ extends CharacterBody2D
 @onready var animated_sprite_2d: AnimatedSprite2D = $AnimatedSprite2D
 @export var drop_table: Array[DropTable]
 
+@export var damage: int = 2
+
 var is_dying = false
 var is_hurt = false
 var hits_remaining = 1
+var _touching_witch: bool = false
 var speed
 var witch
 var player
@@ -21,6 +24,16 @@ func _ready() -> void:
 	witch = get_node("/root/Game/Witch")
 	player = get_node("/root/Game/Player")
 	animated_sprite_2d.sprite_frames = animated_sprite_2d.sprite_frames.duplicate()
+	$Area2D.body_entered.connect(_on_base_body_entered)
+	$Area2D.body_exited.connect(_on_base_body_exited)
+
+func _on_base_body_entered(body: Node2D) -> void:
+	if body == witch:
+		_touching_witch = true
+
+func _on_base_body_exited(body: Node2D) -> void:
+	if body == witch:
+		_touching_witch = false
 
 func die():
 	is_dying = true
@@ -62,9 +75,9 @@ func _play_hurt() -> void:
 	await animated_sprite_2d.animation_finished
 	is_hurt = false
 
-# Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta: float) -> void:
-	pass
+	if _touching_witch and not is_dying:
+		witch.take_damage(damage)
 
 func _chase_witch() -> void:
 	var direction = Vector2(witch.global_position - global_position).normalized()

scripts/fire_slime.gd

@@ -1,6 +1,5 @@
 extends EnemyBase
 
-
 func _ready() -> void:
 	super()
 	speed = 15.0
@@ -8,6 +7,7 @@ func _ready() -> void:
 	$Area2D.body_entered.connect(_on_area_2d_body_entered)
 
 func _process(delta: float) -> void:
+	super._process(delta)
 	if is_dying or is_hurt:
 		return
 	_chase_witch()

scripts/slime.gd

@@ -1,22 +1,17 @@
 extends EnemyBase
 
-
-# Called when the node enters the scene tree for the first time.
-
-# Called every frame. 'delta' is the elapsed time since the previous frame.+
 func _ready() -> void:
 	super()
-	speed = 15.0 
+	speed = 15.0
 
 func _process(delta: float) -> void:
+	super._process(delta)
 	if is_dying:
 		return
 	_chase_witch()
-	pass
 
 func _on_area_2d_body_entered(body: Node2D) -> void:
 	if is_dying:
 		return
 	if body == player:
 		die()
-	pass # Replace with function body.

scripts/witch.gd

@@ -1,5 +1,7 @@
 extends CharacterBody2D
 
+signal health_changed(current_hp: int, max_hp: int)
+
 var camera
 var is_casting = false
 var fireball = preload("res://scenes/fireball.tscn")
@@ -7,9 +9,33 @@ var shuriken = preload("res://scenes/shuriken.tscn")
 var fire_swirl = preload("res://scenes/fire_swirl.tscn")
 var shuriken_count = 1
 
+var max_hp: int = 100
+var current_hp: int = 100
+var is_invincible: bool = false
+
+const HP_BAR_WIDTH = 20
+const HP_BAR_HEIGHT = 3
+var _hp_bar_fill: ColorRect
+
 func _ready() -> void:
 	$CauldronBar.witch = self
 	camera = get_node("/root/Game/Camera2D")
+	_setup_hp_bar()
+
+func _setup_hp_bar() -> void:
+	var bg = ColorRect.new()
+	bg.color = Color(0.15, 0.15, 0.15, 0.85)
+	bg.size = Vector2(HP_BAR_WIDTH, HP_BAR_HEIGHT)
+	bg.position = Vector2(-HP_BAR_WIDTH / 2.0, 18)
+	add_child(bg)
+	_hp_bar_fill = ColorRect.new()
+	_hp_bar_fill.color = Color(0.85, 0.1, 0.1, 1.0)
+	_hp_bar_fill.size = Vector2(HP_BAR_WIDTH, HP_BAR_HEIGHT)
+	_hp_bar_fill.position = Vector2(-HP_BAR_WIDTH / 2.0, 18)
+	add_child(_hp_bar_fill)
+
+func _update_hp_bar() -> void:
+	_hp_bar_fill.size.x = HP_BAR_WIDTH * (float(current_hp) / float(max_hp))
 	
 func _physics_process(delta: float) -> void:
 	# Add the gravity.
@@ -43,6 +69,20 @@ func shoot_shuriken():
 		get_parent().add_child(sh)
 		await get_tree().create_timer(0.2).timeout
 		
+func take_damage(amount: int) -> void:
+	if is_invincible:
+		return
+	current_hp -= amount
+	current_hp = max(current_hp, 0)
+	health_changed.emit(current_hp, max_hp)
+	_update_hp_bar()
+	if current_hp <= 0:
+		get_tree().call_deferred("reload_current_scene")
+		return
+	is_invincible = true
+	await get_tree().create_timer(1.0).timeout
+	is_invincible = false
+
 func get_nearest_enemy(from: Vector2, filter: Callable = Callable()) -> Node:
 	var nearest = null
 	var min_distance = INF