got kicked by stone with cooldown

scenes/EnchantedSphere.tscn

@@ -0,0 +1,29 @@
+[gd_scene format=3 uid="uid://cayybawvw26cm"]
+
+[ext_resource type="Script" path="res://scripts/EnchantedSphere.gd" id="1_sphere"]
+
+[sub_resource type="SphereMesh" id="SphereMesh_1"]
+radius = 0.28
+height = 0.56
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.8, 0.3, 1.0, 1)
+emission_enabled = true
+emission = Color(0.6, 0.1, 1.0, 1)
+emission_energy_multiplier = 3.0
+
+[node name="EnchantedSphere" type="Node3D"]
+script = ExtResource("1_sphere")
+
+[node name="SphereMesh" type="MeshInstance3D" parent="."]
+mesh = SubResource("SphereMesh_1")
+material_override = SubResource("StandardMaterial3D_1")
+
+[node name="Tooltip" type="Label3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.1, 0)
+billboard = 1
+double_sided = true
+text = "[E] Enchanted Sphere
++1 Tier"
+font_size = 32
+outline_size = 6

scenes/Essence.tscn

@@ -0,0 +1,28 @@
+[gd_scene format=3 uid="uid://bjk2mastaopd8"]
+
+[ext_resource type="Script" path="res://scripts/Essence.gd" id="1_essence"]
+
+[sub_resource type="SphereMesh" id="SphereMesh_1"]
+radius = 0.18
+height = 0.36
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.7, 0.2, 1.0, 1)
+emission_enabled = true
+emission = Color(0.5, 0.0, 1.0, 1)
+emission_energy_multiplier = 2.0
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_1"]
+radius = 0.18
+
+[node name="Essence" type="CharacterBody3D"]
+script = ExtResource("1_essence")
+
+[node name="EssenceMesh" type="MeshInstance3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.22, 0)
+mesh = SubResource("SphereMesh_1")
+material_override = SubResource("StandardMaterial3D_1")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.22, 0)
+shape = SubResource("SphereShape3D_1")

scenes/Iron.tscn

@@ -0,0 +1,27 @@
+[gd_scene format=3 uid="uid://g7iron5etp8u"]
+
+[ext_resource type="Script" uid="uid://0wdmbocpe2ir" path="res://scripts/Iron.gd" id="1_iron"]
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.55, 0.58, 0.62, 1)
+metallic = 0.7
+metallic_specular = 0.8
+roughness = 0.4
+
+[sub_resource type="BoxMesh" id="BoxMesh_1"]
+size = Vector3(0.38, 0.22, 0.5)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_1"]
+size = Vector3(0.38, 0.22, 0.5)
+
+[node name="Iron" type="CharacterBody3D" unique_id=611454609]
+script = ExtResource("1_iron")
+
+[node name="IronMesh" type="MeshInstance3D" parent="." unique_id=1832879739]
+transform = Transform3D(3.5611715, 0, 0, 0, 2.7614622, 0, 0, 0, 1, 0, 0.2, 0)
+material_override = SubResource("StandardMaterial3D_1")
+mesh = SubResource("BoxMesh_1")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="." unique_id=665808333]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.2, 0)
+shape = SubResource("BoxShape3D_1")

scenes/Level.tscn

@@ -62,6 +62,40 @@ radius = 1.0966797
 [sub_resource type="BoxShape3D" id="BoxShape3D_qifjx"]
 size = Vector3(2.2670898, 1, 3.7305298)
 
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_forge"]
+albedo_color = Color(0.28, 0.24, 0.2, 1)
+roughness = 0.95
+
+[sub_resource type="BoxMesh" id="BoxMesh_forge"]
+size = Vector3(2, 1.8, 2)
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_chimney"]
+albedo_color = Color(0.2, 0.18, 0.16, 1)
+
+[sub_resource type="BoxMesh" id="BoxMesh_chimney"]
+size = Vector3(0.6, 1, 0.6)
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_forge"]
+size = Vector3(2, 1.8, 2)
+
+[sub_resource type="BoxMesh" id="BoxMesh_etable"]
+size = Vector3(1.4, 0.9, 1.4)
+
+[sub_resource type="BoxMesh" id="BoxMesh_ebook"]
+size = Vector3(0.7, 0.12, 0.5)
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_etable"]
+albedo_color = Color(0.12, 0.08, 0.22, 1)
+roughness = 0.6
+metallic = 0.2
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_ebook"]
+albedo_color = Color(0.55, 0.08, 0.08, 1)
+roughness = 0.9
+
+[sub_resource type="BoxShape3D" id="BoxShape3D_etable"]
+size = Vector3(1.4, 0.9, 1.4)
+
 [node name="Level" type="Node3D" unique_id=696519]
 script = ExtResource("1_ppgk2")
 show_grid = false
@@ -210,3 +244,35 @@ shape = SubResource("CylinderShape3D_6vs76")
 [node name="CollisionShape3D3" type="CollisionShape3D" parent="stone_big_static_body" unique_id=1397239926]
 transform = Transform3D(1.9385185, 0, -0.69275445, 0, 2.0585828, 0, 0.69275445, 0, 1.9385185, 60.670692, 1.6238549, 36.420376)
 shape = SubResource("CylinderShape3D_6vs76")
+
+[node name="Forge" type="StaticBody3D" parent="." unique_id=734179063]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 8, 0.9, -8)
+metadata/is_forge = true
+
+[node name="ForgeMesh" type="MeshInstance3D" parent="Forge" unique_id=1062255408]
+material_override = SubResource("StandardMaterial3D_forge")
+mesh = SubResource("BoxMesh_forge")
+
+[node name="ChimneyMesh" type="MeshInstance3D" parent="Forge" unique_id=1649367044]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.5, 1.4, -0.4)
+material_override = SubResource("StandardMaterial3D_chimney")
+mesh = SubResource("BoxMesh_chimney")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="Forge" unique_id=726531191]
+shape = SubResource("BoxShape3D_forge")
+
+[node name="EnchantingTable" type="StaticBody3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -8, 0.45, -8)
+metadata/is_enchanting_table = true
+
+[node name="TableMesh" type="MeshInstance3D" parent="EnchantingTable"]
+mesh = SubResource("BoxMesh_etable")
+material_override = SubResource("StandardMaterial3D_etable")
+
+[node name="BookMesh" type="MeshInstance3D" parent="EnchantingTable"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.51, 0)
+mesh = SubResource("BoxMesh_ebook")
+material_override = SubResource("StandardMaterial3D_ebook")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="EnchantingTable"]
+shape = SubResource("BoxShape3D_etable")

scenes/MetalArmor.tscn

@@ -0,0 +1,28 @@
+[gd_scene format=3 uid="uid://h8armor4fura"]
+
+[ext_resource type="Script" path="res://scripts/MetalArmor.gd" id="1_armor"]
+
+[sub_resource type="BoxMesh" id="BoxMesh_1"]
+size = Vector3(0.55, 0.7, 0.25)
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.55, 0.60, 0.68, 1)
+roughness = 0.3
+metallic = 0.85
+metallic_specular = 1.0
+
+[node name="MetalArmor" type="Node3D"]
+script = ExtResource("1_armor")
+
+[node name="ArmorMesh" type="MeshInstance3D" parent="."]
+mesh = SubResource("BoxMesh_1")
+material_override = SubResource("StandardMaterial3D_1")
+
+[node name="Tooltip" type="Label3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.0, 0)
+billboard = 1
+double_sided = true
+text = "[E] Metal Armor
++1 Tier"
+font_size = 32
+outline_size = 6

scripts/Boulder.gd

@@ -63,6 +63,11 @@ func _fly(delta: float) -> void:
 			_take_damage(speed_now * WALL_SELF_DMG)
 			handled = true
 			break
+		elif col3d.is_in_group("player"):
+			col3d.call("take_damage", int(speed_now * damage_modifier))
+			fly_vel *= 0.3
+			handled = true
+			break
 		elif col3d.is_in_group("enemies") or col3d.is_in_group("kickable"):
 			if col3d == self:
 				continue

scripts/EnchantedSphere.gd

@@ -0,0 +1,25 @@
+extends Node3D
+
+@onready var tooltip: Label3D = $Tooltip
+@onready var mesh_node: MeshInstance3D = $SphereMesh
+
+func _ready() -> void:
+	add_to_group("interactable")
+	tooltip.visible = false
+	var tw := create_tween().set_loops()
+	tw.tween_property(self, "position:y", 0.7, 0.9)
+	tw.tween_property(self, "position:y", 0.3, 0.9)
+
+func _process(delta: float) -> void:
+	rotation.y += delta * 1.8
+	mesh_node.rotation.x += delta * 0.9
+	var players := get_tree().get_nodes_in_group("player")
+	if players.is_empty():
+		tooltip.visible = false
+		return
+	var p := players[0] as Node3D
+	tooltip.visible = p != null and global_position.distance_to(p.global_position) < 2.5
+
+func interact(player: Node) -> void:
+	player.call("apply_upgrade_enchant")
+	queue_free()

scripts/EnchantedSphere.gd.uid

@@ -0,0 +1 @@
+uid://c4d11cs4fcqib

scripts/Enemy.gd

@@ -1,8 +1,10 @@
 class_name Enemy
 extends CharacterBody3D
 
-const PICKUP_SCENE  := preload("res://scenes/Pickup.tscn")
+const PICKUP_SCENE   := preload("res://scenes/Pickup.tscn")
-const LEATHER_SCENE := preload("res://scenes/Leather.tscn")
+const LEATHER_SCENE  := preload("res://scenes/Leather.tscn")
+const IRON_SCENE     := preload("res://scenes/Iron.tscn")
+const ESSENCE_SCENE  := preload("res://scenes/Essence.tscn")
 
 signal died(points: int)
 signal merged(upgrade: bool)
@@ -10,6 +12,8 @@ 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
+static var first_essence_spawned: bool = false
 
 var kickable_type: String = ""
 var tier: int = 1
@@ -25,6 +29,11 @@ var stun_time: float = 0.5
 var base_scale: float = 1.0
 var wave_num: int = 1
 var damage_modifier: float = 0.75
+var enemy_kick_timer: float = 0.0
+var kickable_kick_timer: float = 0.0
+const ENEMY_KICK_COOLDOWN    := 1.2
+const KICKABLE_KICK_COOLDOWN := 2.5
+const ENEMY_KICK_RANGE       := 2.2
 
 var state: State = State.CHASING
 var fly_vel: Vector3 = Vector3.ZERO
@@ -54,7 +63,6 @@ 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 +90,7 @@ 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:
@@ -94,6 +103,8 @@ func _chase(delta: float) -> void:
 	if not is_instance_valid(target):
 		return
 	contact_timer = max(0.0, contact_timer - delta)
+	enemy_kick_timer = max(0.0, enemy_kick_timer - delta)
+	kickable_kick_timer = max(0.0, kickable_kick_timer - delta)
 	var diff := target.global_position - global_position
 	diff.y = 0.0
 	var dist := diff.length()
@@ -101,32 +112,68 @@ func _chase(delta: float) -> void:
 		contact_timer = CONTACT_CD
 		if target.has_method("take_damage"):
 			target.take_damage(damage_to_player)
+	if enemy_kick_timer <= 0.0:
+		_try_enemy_kick()
 	if dist > 0.05:
 		var dir := diff.normalized()
-		dir = _avoid_rocks(dir)
 		velocity.x = dir.x * move_speed
 		velocity.z = dir.z * move_speed
 		rotation.y = lerp_angle(rotation.y, atan2(dir.x, dir.z), 8.0 * delta)
 	velocity.y = 0.0
 	move_and_slide()
 
-const AVOID_RADIUS   := 1.6
+func _try_enemy_kick() -> void:
-const AVOID_STRENGTH := 2.2
+	if not is_instance_valid(target):
+		return
+	var player_pos := target.global_position
+	var to_player := player_pos - global_position
+	to_player.y = 0.0
+	var kick_dir := to_player.normalized() if to_player.length() > 0.01 else -global_transform.basis.z
 
-func _avoid_rocks(desired: Vector3) -> Vector3:
+	# 1. Kick nearest kickable towards player
-	var push := Vector3.ZERO
+	if kickable_kick_timer <= 0.0:
-	for rock in get_tree().get_nodes_in_group("kickable"):
+		var nearest_kickable: Node3D = null
-		if not is_instance_valid(rock):
+		var nearest_dist := ENEMY_KICK_RANGE
-			continue
+		for node in get_tree().get_nodes_in_group("kickable"):
-		var away := global_position - (rock as Node3D).global_position
+			var k := node as Node3D
-		away.y = 0.0
+			if k == null or not is_instance_valid(k):
-		var d := away.length()
+				continue
-		if d < AVOID_RADIUS and d > 0.01:
+			var d := (k.global_position - global_position)
-			push += away.normalized() * (1.0 - d / AVOID_RADIUS)
+			d.y = 0.0
-	if push.length() < 0.01:
+			if d.length() < nearest_dist:
-		return desired
+				nearest_dist = d.length()
-	var steered := desired + push * AVOID_STRENGTH
+				nearest_kickable = k
-	return steered.normalized() if steered.length() > 0.01 else desired
+		if nearest_kickable != null:
+			nearest_kickable.call("receive_kick", kick_dir, 35.0 + tier * 8.0)
+			kickable_kick_timer = KICKABLE_KICK_COOLDOWN
+			return
+
+	# 2. Kick lower-tier enemy nearest to player direction
+	if tier > 0:
+		var nearest_enemy: Node3D = null
+		var nearest_enemy_dist := ENEMY_KICK_RANGE
+		for node in get_tree().get_nodes_in_group("enemies"):
+			var en := node as Node3D
+			if en == null or en == self or not is_instance_valid(en):
+				continue
+			if (en.get("tier") if en.get("tier") != null else 0) >= tier:
+				continue
+			var d := (en.global_position - global_position)
+			d.y = 0.0
+			if d.length() < nearest_enemy_dist:
+				nearest_enemy_dist = d.length()
+				nearest_enemy = en
+		if nearest_enemy != null:
+			nearest_enemy.call("receive_kick", kick_dir, 40.0 + tier * 10.0)
+			enemy_kick_timer = ENEMY_KICK_COOLDOWN
+			return
+
+	# 3. Kick player directly if lower tier and in range
+	if tier > 0 and to_player.length() < ENEMY_KICK_RANGE:
+		var player_tier: int = target.get("tier") if target.get("tier") != null else 0
+		if player_tier < tier:
+			target.call("receive_kick", kick_dir, 35.0 + tier * 8.0)
+			enemy_kick_timer = ENEMY_KICK_COOLDOWN
 
 func _fly(delta: float) -> void:
 	var speed_now := Vector2(fly_vel.x, fly_vel.z).length()
@@ -267,6 +314,22 @@ 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
+
+	if enemy_level == 3:
+		var drop_essence := not first_essence_spawned or randf() < 0.20
+		if drop_essence:
+			first_essence_spawned = true
+			var essence := ESSENCE_SCENE.instantiate() as Node3D
+			get_parent().add_child(essence)
+			essence.global_position = global_position
+
 	var roll := randf()
 	var p_type := ""
 	var p_heal := 0

scripts/Essence.gd

@@ -0,0 +1,105 @@
+extends CharacterBody3D
+
+const ENCHANTED_SPHERE_SCENE := preload("res://scenes/EnchantedSphere.tscn")
+
+signal destroyed
+
+enum State { IDLE, FLYING }
+
+const AIR_FRICTION  := 0.88
+const MIN_SPEED     := 0.3
+const WALL_BOUNCE   := 0.6
+const WALL_SELF_DMG := 0.0
+
+var kickable_type: String = "essence"
+var tier: int = 3
+var state: State = State.IDLE
+var fly_vel: Vector3 = Vector3.ZERO
+var health: float = 999.0
+var dead: bool = false
+var damage_modifier: float = 0.0
+
+@onready var mesh_node: MeshInstance3D = $EssenceMesh
+var essence_mat: StandardMaterial3D
+
+func _ready() -> void:
+	add_to_group("kickable")
+	essence_mat = mesh_node.material_override.duplicate() as StandardMaterial3D
+	mesh_node.material_override = essence_mat
+	var tw := create_tween().set_loops()
+	tw.tween_property(self, "position:y", 0.35, 0.6)
+	tw.tween_property(self, "position:y", 0.15, 0.6)
+
+func apply_collision_damage(_dmg: float) -> void:
+	pass
+
+func receive_kick(direction: Vector3, force: float) -> void:
+	fly_vel = direction * force
+	fly_vel.y = 0.0
+	state = State.FLYING
+
+func _physics_process(delta: float) -> void:
+	if state == State.IDLE:
+		mesh_node.rotation.y += delta * 1.5
+		return
+	_fly(delta)
+
+func _fly(delta: float) -> void:
+	var speed_now := Vector2(fly_vel.x, fly_vel.z).length()
+	velocity = fly_vel
+	velocity.y = 0.0
+	move_and_slide()
+
+	var handled := false
+	for i in get_slide_collision_count():
+		var col := get_slide_collision(i)
+		var col3d := col.get_collider() as Node3D
+		if col3d == null:
+			continue
+		if col3d.has_meta("is_enchanting_table"):
+			_hit_table(col3d)
+			return
+		if col3d.has_meta("is_wall"):
+			var normal := col.get_normal()
+			normal.y = 0.0
+			if normal.length() > 0.01:
+				fly_vel = fly_vel.bounce(normal.normalized()) * WALL_BOUNCE
+			else:
+				fly_vel = Vector3.ZERO
+			handled = true
+			break
+		elif col3d.is_in_group("enemies") or col3d.is_in_group("kickable"):
+			if col3d == self:
+				continue
+			KickSystem.resolve(self, col3d, fly_vel)
+			fly_vel *= 0.4
+			handled = true
+			break
+
+	if not handled:
+		fly_vel = velocity
+		fly_vel.y = 0.0
+
+	fly_vel *= pow(AIR_FRICTION, delta * 60.0)
+
+	if Vector2(fly_vel.x, fly_vel.z).length() < MIN_SPEED:
+		fly_vel = Vector3.ZERO
+		velocity = Vector3.ZERO
+		state = State.IDLE
+
+	mesh_node.rotation.y += delta * speed_now * 0.4
+
+func _hit_table(table: Node3D) -> void:
+	if dead:
+		return
+	dead = true
+	state = State.IDLE
+	set_physics_process(false)
+	var parent := get_parent()
+	var spawn_pos := table.global_position + Vector3(0, 0.5, 0)
+	queue_free()
+	if parent == null:
+		return
+	var sphere := ENCHANTED_SPHERE_SCENE.instantiate() as Node3D
+	parent.add_child(sphere)
+	sphere.global_position = spawn_pos

scripts/Essence.gd.uid

@@ -0,0 +1 @@
+uid://bk2vad35jr81c

scripts/Iron.gd

@@ -0,0 +1,139 @@
+extends CharacterBody3D
+
+const METAL_ARMOR_SCENE := preload("res://scenes/MetalArmor.tscn")
+
+signal destroyed
+
+enum State { IDLE, FLYING }
+
+const AIR_FRICTION  := 0.86
+const MIN_SPEED     := 0.5
+const WALL_BOUNCE   := 0.45
+const WALL_SELF_DMG := 0.5
+
+var kickable_type: String = "iron"
+var tier: int = 2
+var state: State = State.IDLE
+var fly_vel: Vector3 = Vector3.ZERO
+var health: float = 80.0
+var dead: bool = false
+var damage_modifier: float = 0.9
+
+@onready var mesh_node: MeshInstance3D = $IronMesh
+var iron_mat: StandardMaterial3D
+
+const COLOR_IDLE   := Color(0.55, 0.58, 0.62)
+const COLOR_IMPACT := Color(1.0, 1.0, 1.0)
+
+func _ready() -> void:
+	add_to_group("kickable")
+	iron_mat = mesh_node.material_override.duplicate() as StandardMaterial3D
+	mesh_node.material_override = iron_mat
+
+func apply_collision_damage(dmg: float) -> void:
+	_take_damage(dmg)
+
+func receive_kick(direction: Vector3, force: float) -> void:
+	fly_vel = direction * force
+	fly_vel.y = 0.0
+	state = State.FLYING
+
+func _physics_process(delta: float) -> void:
+	if state == State.IDLE:
+		return
+	_fly(delta)
+
+func _fly(delta: float) -> void:
+	var speed_now := Vector2(fly_vel.x, fly_vel.z).length()
+	velocity = fly_vel
+	velocity.y = 0.0
+	move_and_slide()
+
+	var handled := false
+	for i in get_slide_collision_count():
+		var col := get_slide_collision(i)
+		var col3d := col.get_collider() as Node3D
+		if col3d == null:
+			continue
+		if col3d.has_meta("is_forge"):
+			_hit_forge(col3d)
+			return
+		if col3d.has_meta("is_wall"):
+			var normal := col.get_normal()
+			normal.y = 0.0
+			if normal.length() > 0.01:
+				fly_vel = fly_vel.bounce(normal.normalized()) * WALL_BOUNCE
+			else:
+				fly_vel = Vector3.ZERO
+			_take_damage(speed_now * WALL_SELF_DMG)
+			handled = true
+			break
+		elif col3d.is_in_group("player"):
+			col3d.call("take_damage", int(speed_now * damage_modifier))
+			fly_vel *= 0.3
+			handled = true
+			break
+		elif col3d.is_in_group("enemies") or col3d.is_in_group("kickable"):
+			if col3d == self:
+				continue
+			KickSystem.resolve(self, col3d, fly_vel)
+			if not dead and is_instance_valid(col3d):
+				var kick_dir := col3d.global_position - global_position
+				kick_dir.y = 0.0
+				if kick_dir.length() > 0.01:
+					col3d.call("receive_kick", kick_dir.normalized(), speed_now * 0.65)
+			fly_vel *= 0.45
+			handled = true
+			break
+
+	if not handled:
+		fly_vel = velocity
+		fly_vel.y = 0.0
+
+	fly_vel *= pow(AIR_FRICTION, delta * 60.0)
+
+	if Vector2(fly_vel.x, fly_vel.z).length() < MIN_SPEED:
+		fly_vel = Vector3.ZERO
+		velocity = Vector3.ZERO
+		state = State.IDLE
+
+	mesh_node.rotation.y += delta * speed_now * 0.3
+
+func _hit_forge(forge: Node3D) -> void:
+	if dead:
+		return
+	dead = true
+	state = State.IDLE
+	set_physics_process(false)
+	var parent := get_parent()
+	var spawn_pos := forge.global_position + Vector3(5, 0, 0)
+	queue_free()
+	if parent == null:
+		return
+	var armor := METAL_ARMOR_SCENE.instantiate() as Node3D
+	parent.add_child(armor)
+	armor.global_position = spawn_pos
+
+func _take_damage(dmg: float) -> void:
+	if dead:
+		return
+	health -= dmg
+	_flash()
+	if health <= 0.0:
+		_die()
+
+func _die() -> void:
+	dead = true
+	state = State.IDLE
+	set_physics_process(false)
+	emit_signal("destroyed")
+	var tw := create_tween()
+	tw.tween_property(self, "scale", Vector3(1.6, 0.1, 1.6), 0.12)
+	tw.tween_property(self, "scale", Vector3(0.0, 0.0, 0.0), 0.1)
+	tw.tween_callback(queue_free)
+
+func _flash() -> void:
+	var tw := create_tween()
+	tw.tween_property(iron_mat, "albedo_color", COLOR_IMPACT, 0.04)
+	var target_color := COLOR_IDLE.lerp(Color.RED, clampf(1.0 - health / 80.0, 0.0, 0.6))
+	tw.tween_property(iron_mat, "albedo_color", target_color, 0.18)

scripts/Iron.gd.uid

@@ -0,0 +1 @@
+uid://0wdmbocpe2ir

scripts/Main.gd

@@ -171,6 +171,8 @@ func _start_game() -> void:
 	kills = 0
 	kills_for_next = 10
 	Enemy.first_leather_spawned = false
+	Enemy.first_iron_spawned = false
+	Enemy.first_essence_spawned = false
 	_update_labels()
 	spawn_timer.wait_time = 1.4
 	spawn_timer.connect("timeout", _on_spawn_timer)

scripts/MetalArmor.gd

@@ -0,0 +1,23 @@
+extends Node3D
+
+@onready var tooltip: Label3D = $Tooltip
+
+func _ready() -> void:
+	add_to_group("interactable")
+	tooltip.visible = false
+	var tw := create_tween().set_loops()
+	tw.tween_property(self, "position:y", 0.5, 0.7)
+	tw.tween_property(self, "position:y", 0.2, 0.7)
+
+func _process(delta: float) -> void:
+	rotation.y += delta * 1.4
+	var players := get_tree().get_nodes_in_group("player")
+	if players.is_empty():
+		tooltip.visible = false
+		return
+	var p := players[0] as Node3D
+	tooltip.visible = p != null and global_position.distance_to(p.global_position) < 2.5
+
+func interact(player: Node) -> void:
+	player.call("apply_upgrade_armor")
+	queue_free()

scripts/MetalArmor.gd.uid

@@ -0,0 +1 @@
+uid://cqp1ucyvnno7i

scripts/Player.gd

@@ -136,9 +136,9 @@ func _do_kick() -> void:
 	forward.y = 0.0
 	forward = forward.normalized() if forward.length() > 0.01 else Vector3(0.0, 0.0, -1.0)
 	var half_cos: float = cos(deg_to_rad(kick_angle * 0.5))
-	var targets := get_tree().get_nodes_in_group("enemies") + get_tree().get_nodes_in_group("kickable")
+	var candidates: Array[Node3D] = []
-	var kicked_any := false
+	var candidate_dists: Array[float] = []
-	for e in targets:
+	for e in get_tree().get_nodes_in_group("enemies") + get_tree().get_nodes_in_group("kickable"):
 		if not is_instance_valid(e):
 			continue
 		var en := e as Node3D
@@ -150,21 +150,34 @@ func _do_kick() -> void:
 		if dist < 0.1 or dist > kick_range:
 			continue
 		if (diff / dist).dot(forward) >= half_cos:
-			var obj_tier: int = en.get("tier") if en.get("tier") != null else 0
+			candidates.append(en)
-			var diff_tier := tier - obj_tier
+			candidate_dists.append(dist)
-			var force: float
+
-			if diff_tier < 0:
+	if candidates.is_empty():
-				force = 15.0
+		return
-			elif diff_tier == 0:
+
-				force = 50.0
+	var nearest_idx := 0
-			elif diff_tier == 1:
+	for i in range(1, candidates.size()):
-				force = 70.0
+		if candidate_dists[i] < candidate_dists[nearest_idx]:
-			else:
+			nearest_idx = i
-				force = 80.0
+
-			en.call("receive_kick", diff / dist, force)
+	var best := candidates[nearest_idx]
-			kicked_any = true
+	var best_diff := best.global_position - global_position
-	if kicked_any:
+	best_diff.y = 0.0
-		_squish_effect()
+	var best_dir := best_diff.normalized()
+	var obj_tier: int = best.get("tier") if best.get("tier") != null else 0
+	var diff_tier := tier - obj_tier
+	var force: float
+	if diff_tier < 0:
+		force = 15.0
+	elif diff_tier == 0:
+		force = 50.0
+	elif diff_tier == 1:
+		force = 70.0
+	else:
+		force = 80.0
+	best.call("receive_kick", best_dir, force)
+	_squish_effect()
 
 func _try_interact() -> void:
 	var best: Node3D = null
@@ -189,6 +202,13 @@ func _squish_effect() -> void:
 	tw.tween_property(mesh_node, "scale", Vector3(1.3, 0.55, 1.3), 0.07)
 	tw.tween_property(mesh_node, "scale", Vector3(1.0, 1.0, 1.0), 0.18)
 
+func receive_kick(direction: Vector3, force: float) -> void:
+	if not is_alive or invincible_timer > 0.0:
+		return
+	velocity.x = direction.x * force
+	velocity.z = direction.z * force
+	invincible_timer = IFRAMES_DURATION * 0.5
+
 func take_damage(amount: int) -> void:
 	if not is_alive or invincible_timer > 0.0:
 		return
@@ -235,3 +255,15 @@ func apply_upgrade_boots(speed_bonus: float, _tier: int) -> void:
 	var tw := create_tween()
 	tw.tween_property(player_mat, "albedo_color", Color(1.0, 0.85, 0.2), 0.1)
 	tw.tween_property(player_mat, "albedo_color", BASE_COLOR, 0.4)
+
+func apply_upgrade_armor() -> void:
+	tier += 1
+	var tw := create_tween()
+	tw.tween_property(player_mat, "albedo_color", Color(0.7, 0.8, 1.0), 0.1)
+	tw.tween_property(player_mat, "albedo_color", BASE_COLOR, 0.5)
+
+func apply_upgrade_enchant() -> void:
+	tier += 1
+	var tw := create_tween()
+	tw.tween_property(player_mat, "albedo_color", Color(0.8, 0.2, 1.0), 0.1)
+	tw.tween_property(player_mat, "albedo_color", BASE_COLOR, 0.6)

scripts/Rock.gd

@@ -66,6 +66,11 @@ func _fly(delta: float) -> void:
 			_take_damage(speed_now * WALL_SELF_DMG)
 			handled = true
 			break
+		elif col3d.is_in_group("player"):
+			col3d.call("take_damage", int(speed_now * damage_modifier))
+			fly_vel *= 0.3
+			handled = true
+			break
 		elif col3d.is_in_group("enemies") or col3d.is_in_group("kickable"):
 			if col3d == self:
 				continue

scripts/Stick.gd

@@ -63,6 +63,11 @@ func _fly(delta: float) -> void:
 			_take_damage(speed_now * WALL_SELF_DMG)
 			handled = true
 			break
+		elif col3d.is_in_group("player"):
+			col3d.call("take_damage", int(speed_now * damage_modifier))
+			fly_vel *= 0.3
+			handled = true
+			break
 		elif col3d.is_in_group("enemies") or col3d.is_in_group("kickable"):
 			if col3d == self:
 				continue