feat: bullrush branch - mekton bulls arena, HUD, NPC managers, godot_ai updates

scripts/npcs/mekton_bull.gd

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+extends Area3D
+
+enum State {
+	ROAM,
+	CHARGE,
+	COOLDOWN
+}
+
+var current_state: State = State.ROAM
+var gridmap: Node
+var arena_manager: Node
+
+var move_speed: float = 3.0
+var charge_speed: float = 12.0
+var target_pos: Vector3
+var state_timer: float = 0.0
+var slow_timer: float = 0.0
+
+func _ready():
+	add_to_group("MektonBulls")
+	body_entered.connect(_on_body_entered)
+
+func initialize(manager: Node, grid: Node, start_pos: Vector3):
+	arena_manager = manager
+	gridmap = grid
+	position = start_pos
+	_pick_roam_target()
+
+func apply_slow(duration: float) -> void:
+	slow_timer = duration
+
+func _physics_process(delta: float):
+	if not multiplayer.is_server():
+		return
+		
+	state_timer -= delta
+	if slow_timer > 0:
+		slow_timer -= delta
+	
+	match current_state:
+		State.ROAM:
+			_process_roam(delta)
+			if state_timer <= 0:
+				_try_start_charge()
+		State.CHARGE:
+			_process_charge(delta)
+		State.COOLDOWN:
+			if state_timer <= 0:
+				current_state = State.ROAM
+				_pick_roam_target()
+
+func _process_roam(delta: float):
+	var dist = position.distance_to(target_pos)
+	if dist < 0.1:
+		_pick_roam_target()
+	else:
+		var dir = (target_pos - position).normalized()
+		dir.y = 0 
+		if dir.length_squared() > 0:
+			var actual_speed = move_speed
+			if slow_timer > 0: actual_speed *= 0.5
+			position += dir * actual_speed * delta
+			# Face direction implicitly
+			var look_target = position + dir
+			look_target.y = position.y
+			if position.distance_squared_to(look_target) > 0.01:
+				look_at(look_target, Vector3.UP)
+
+func _pick_roam_target():
+	if not arena_manager: return
+	
+	var bounds = arena_manager.arena_size_for_phase(arena_manager.current_phase)
+	# Random walkable position within bounds
+	# We know 0,0 is boundary, bounds.x-1 is boundary
+	var min_x = 1
+	var max_x = bounds.x - 2
+	var min_z = 1
+	var max_z = bounds.y - 2
+	
+	if min_x > max_x: max_x = min_x
+	if min_z > max_z: max_z = min_z
+	
+	# Avoid exact center (where the static delivery target presumably sits)
+	var cx = int(bounds.x / 2.0)
+	var cz = int(bounds.y / 2.0)
+	
+	var rx = cx
+	var rz = cz
+	while rx == cx and rz == cz:
+		rx = randi_range(min_x, max_x)
+		rz = randi_range(min_z, max_z)
+	
+	var world_x = rx * gridmap.cell_size.x + gridmap.cell_size.x / 2.0
+	var world_z = rz * gridmap.cell_size.z + gridmap.cell_size.z / 2.0
+	
+	target_pos = Vector3(world_x, position.y, world_z)
+	state_timer = randf_range(2.0, 4.0)
+
+func _try_start_charge():
+	# Find closest player
+	var players = get_tree().get_nodes_in_group("Players")
+	var closest_player = null
+	var min_dist = INF
+	
+	for p in players:
+		if p.is_in_group("Players") and p.has_method("is_eliminated") and not p.is_eliminated():
+			var d = position.distance_to(p.position)
+			if d < min_dist and d < 15.0: # Range check
+				min_dist = d
+				closest_player = p
+				
+	if closest_player:
+		current_state = State.CHARGE
+		target_pos = closest_player.position
+		target_pos.y = position.y
+		state_timer = 2.0 # Max charge duration
+		if has_node("/root/SfxManager"):
+			get_node("/root/SfxManager").play_rpc("bull_charge")
+	else:
+		_pick_roam_target()
+
+func _process_charge(delta: float):
+	var dir = (target_pos - position).normalized()
+	dir.y = 0
+	var actual_speed = charge_speed
+	if slow_timer > 0: actual_speed *= 0.5
+	position += dir * actual_speed * delta
+	
+	var look_target = position + dir
+	look_target.y = position.y
+	if position.distance_squared_to(look_target) > 0.01:
+		look_at(look_target, Vector3.UP)
+		
+	var dist = position.distance_to(target_pos)
+	if dist < 0.5 or state_timer <= 0:
+		# Hit destination or timeout
+		current_state = State.COOLDOWN
+		state_timer = 1.5
+
+func _on_body_entered(body: Node3D):
+	if body.is_in_group("Players") and multiplayer.is_server():
+		# Knock them out
+		if body.has_method("eliminate"):
+			body.eliminate()
+		else:
+			print("[MektonBull] Knocked out player", body.name)
+			# Dispatch via manager
+			if arena_manager and arena_manager.has_signal("player_eliminated"):
+				arena_manager.player_eliminated.emit(body.name.to_int())
+		
+		# Polish: SFX + Camera Shake
+		rpc("sync_bull_impact")
+
+@rpc("authority", "call_local", "unreliable")
+func sync_bull_impact() -> void:
+	if has_node("/root/SfxManager"):
+		get_node("/root/SfxManager").play("bull_impact")
+	
+	var root = get_tree().root
+	var main = root.get_node_or_null("Main")
+	if main and main.get("screen_shake_manager"):
+		main.screen_shake_manager.shake(0.2, 0.5)

scripts/npcs/mekton_bull.gd.uid

@@ -0,0 +1 @@
+uid://ciytpot4av5gw