game: add enemy mods

scenes/enemies/enemy_base.gd

@@ -7,6 +7,7 @@ extends CharacterBody2D
 @export var target_distance: float = 6.0
 @export var path_update_interval: float = 1.5
 @export var xp_dropped: float = 5.0
+@export var enemy_rarity: GlobalConst.Rarity = GlobalConst.Rarity.NORMAL
 var modifiers: Array[EnemyMod] = []
 
 @onready var target_cast: RayCast2D = $TargetCast
@@ -16,6 +17,7 @@ var modifiers: Array[EnemyMod] = []
 @onready var collision_shape_2d: CollisionShape2D = $CollisionShape2D
 @onready var shape_cast_2d: ShapeCast2D = $ShapeCast2D
 @onready var sprite_2d: Sprite2D = $Sprite2D
+@onready var label: Label = $Label
 
 var player: Player
 var enemy_name: String
@@ -28,8 +30,23 @@ var _path_update_timer: float = 0.0
 
 
 func _ready() -> void:
-	health = max_health
 	enemy_name = _gen_name()
+	match enemy_rarity:
+		GlobalConst.Rarity.NORMAL:
+			label.visible = false
+		GlobalConst.Rarity.RARE:
+			var mods = EnemyModPool.get_random_mods(2)
+			label.visible = true
+			modifiers = mods
+		GlobalConst.Rarity.EPIC:
+			var mods = EnemyModPool.get_random_mods(4)
+			label.visible = true
+			modifiers = mods
+	if modifiers.size() > 0:
+		enemy_name += " the %s" % modifiers.pick_random().adjective
+		label.add_theme_color_override("font_color", GlobalConst.rarity_to_color(enemy_rarity))
+	label.text = enemy_name
+	health = get_calculated("max_health")
 	shape_cast_2d.shape.radius = collision_shape_2d.shape.radius
 	shape_cast_2d.enabled = false
 	sprite_2d.material = sprite_2d.material.duplicate()
@@ -80,7 +97,7 @@ func _do_simple_movement():
 	var direction = global_position.direction_to(target.global_position)
 	var distance = global_position.distance_to(target.global_position)
 	if distance > 4:
-		velocity = direction * move_speed
+		velocity = direction * get_calculated("move_speed")
 		move_and_slide()
 
 
@@ -98,7 +115,7 @@ func _do_nav_agent_movement():
 	if shape_cast_2d.is_colliding():
 		direction = direction.bounce(shape_cast_2d.get_collision_normal(0)).normalized()
 
-	velocity = direction * move_speed
+	velocity = direction * get_calculated("move_speed")
 	move_and_slide()
 
 
@@ -148,7 +165,7 @@ func die():
 
 func drop_xp_orb() -> void:
 	var orb: XPOrb = preload("res://scenes/xp_orb.tscn").instantiate()
-	orb.value = xp_dropped
+	orb.value = xp_dropped * (1 + (modifiers.size() * 3))
 	orb.position = position
 	get_parent().call_deferred("add_child", orb)
 
@@ -156,3 +173,21 @@ func drop_xp_orb() -> void:
 func _on_animation_player_animation_finished(anim_name: StringName) -> void:
 	if is_dead:
 		queue_free()
+
+
+func get_calculated(key: String) -> Variant:
+	# set max move speed to players move speed
+	if key == "move_speed":
+		return clampf(
+			EnemyMod.get_calculated(self, key),
+			0,
+			player.player_stats.get_final("move_speed", player.modifiers)
+		)
+	return EnemyMod.get_calculated(self, key)
+
+
+func has_property(key: String) -> bool:
+	for prop in get_property_list():
+		if prop.name == key:
+			return true
+	return false