game: add player stats and modifiers

scenes/player.gd

@@ -1,15 +1,13 @@
+class_name Player
 extends CharacterBody2D
 
 @export var camera: Camera2D
 @export var main_ui: MainUI
-@export var default_movement_speed: float = 200.0
-@export var default_max_health: float = 50.0
 
 @onready var sprite_2d: Sprite2D = $Sprite2D
 
-var movement_speed: float
-var max_health: float
-var health: float
+var player_stats: PlayerStats = PlayerStats.new()
+var modifiers: Array[PlayerStatsModifier] = []
 var dead: bool = false
 var death_anim_done: bool = false
 var god_mode: bool = false
@@ -17,9 +15,6 @@ var god_mode: bool = false
 
 func _ready() -> void:
 	camera.position = global_position
-	movement_speed = default_movement_speed
-	max_health = default_max_health
-	health = max_health
 	main_ui.player_ui.set_hp(100)
 	GlobalConst.sig_debug_god_mode.connect(toggle_god_mode)
 
@@ -28,7 +23,8 @@ func _physics_process(delta: float) -> void:
 	if dead:
 		return
 	var input_direction = Input.get_vector("left", "right", "up", "down")
-	velocity = input_direction * movement_speed
+	var move_speed = player_stats.get_final("move_speed", modifiers)
+	velocity = input_direction * move_speed
 	move_and_slide()
 
 
@@ -42,14 +38,13 @@ func _process(delta: float) -> void:
 func take_damage(value: float) -> void:
 	if dead or god_mode:
 		return
-	health -= value
-	print_debug("player took damage. now has %s hp" % health)
+	player_stats.current_health -= value
 	var dm = preload("res://scenes/damage_numbers.tscn").instantiate()
 	dm.damage_taken = value
 	dm.player_damage = false
 	add_child(dm)
-	main_ui.player_ui.set_hp(health / max_health * 100)
-	if health <= 0:
+	main_ui.player_ui.set_hp((player_stats.current_health / player_stats.get_final("max_health", modifiers)) * 100)
+	if player_stats.current_health <= 0:
 		die()