Added player health and health bar

game/entities/player/player.gd

@@ -2,6 +2,13 @@ class_name Player
 extends CharacterBody2D
 
 
+signal health_changed(value: float)
+signal dead()
+
+
+const MAX_HEALTH = 100.0
+
+
 @export_group("Movement", "move")
 @export_range(0.0, 1000.0) var move_max_speed_normal := 350
 @export_range(0.0, 1000.0) var move_max_speed_slowed := 250
@@ -28,6 +35,11 @@ var _slow_down_tween: Tween
 
 var _last_wall_normal: = 0.0
 
+var _current_health: = MAX_HEALTH:
+	set(value):
+		_current_health = value
+		health_changed.emit(_current_health)
+
 
 @onready var player_sprite : AnimatedSprite2D = $PlayerSprite
 @onready var blade_sprite : AnimatedSprite2D = $BladeSprite
@@ -126,6 +138,13 @@ func _input(event: InputEvent) -> void:
 				_attack()
 
 
+func deal_damage(value: float) -> void:
+	_current_health -= value
+	health_changed.emit(_current_health)
+	if _current_health < 0.0 or is_zero_approx(_current_health):
+		dead.emit()
+
+
 func _attack() -> void:
 	var sprite := attack_left_sprite if velocity.x <= 0.0 else attack_right_sprite
 	sprite.show()