add iron and forge

scripts/Enemy.gd

@@ -3,6 +3,7 @@ extends CharacterBody3D
 
 const PICKUP_SCENE  := preload("res://scenes/Pickup.tscn")
 const LEATHER_SCENE := preload("res://scenes/Leather.tscn")
+const IRON_SCENE    := preload("res://scenes/Iron.tscn")
 
 signal died(points: int)
 signal merged(upgrade: bool)
@@ -10,6 +11,7 @@ signal merged(upgrade: bool)
 enum State { CHASING, FLYING, STUNNED, DEAD, MERGING }
 
 static var first_leather_spawned: bool = false
+static var first_iron_spawned: bool = false
 
 var kickable_type: String = ""
 var tier: int = 1
@@ -54,7 +56,6 @@ func setup(type: String, wave: int) -> void:
 	enemy_type = type
 	kickable_type = type
 	wave_num = wave
-	tier = enemy_level
 	match type:
 		"slime":
 			move_speed = 2.8 + wave * 0.12
@@ -82,6 +83,7 @@ func setup(type: String, wave: int) -> void:
 			COLOR_CHASE = Color(0.3, 0.7, 0.3)
 			mat.albedo_color = COLOR_CHASE
 			enemy_level = 3
+	tier = enemy_level
 
 func _physics_process(delta: float) -> void:
 	match state:
@@ -267,6 +269,14 @@ func _try_drop_pickup() -> void:
 			get_parent().add_child(leather)
 			leather.global_position = global_position
 
+	if enemy_level == 2:
+		var drop_iron := not first_iron_spawned or randf() < 0.20
+		if drop_iron:
+			first_iron_spawned = true
+			var iron := IRON_SCENE.instantiate() as Node3D
+			get_parent().add_child(iron)
+			iron.global_position = global_position
+
 	var roll := randf()
 	var p_type := ""
 	var p_heal := 0