Adding barracks

game/territory-autobattler/scenes/game/hex_grid_screen.gd

@@ -2,7 +2,9 @@ extends Control
 
 const SESSION_PATH := "user://auth_session.json"
 const LOCATIONS_BASE_URL := "https://tloc.ranaze.com"
+const AUTH_BASE_URL := "https://tauth.ranaze.com"
 const RESOURCE_REFRESH_SECONDS := 15.0
+const TOKEN_REFRESH_PROMPT_SECONDS := 120.0
 const HexGridView := preload("res://scenes/game/hex_grid_view.gd")
 
 var coordinate_label: Label
@@ -15,21 +17,29 @@ var units_request: HTTPRequest
 var train_unit_request: HTTPRequest
 var claim_request: HTTPRequest
 var build_request: HTTPRequest
+var refresh_request: HTTPRequest
 var resources_timer: Timer
+var auth_check_timer: Timer
+var refresh_dialog: ConfirmationDialog
 var session: Dictionary = {}
 var escape_overlay: Control
 var escape_panel: PanelContainer
 var gold_label: Label
 var tick_bar: ProgressBar
 var tick_label: Label
+var resource_text := "Gold: --\nWood: --\nOre: --"
 var gold_tick_anchor_unix := 0.0
 var gold_tick_seconds := 60.0
 var train_button: Button
 var unit_label: Label
+var training_box: VBoxContainer
 var training_label: Label
 var training_bar: ProgressBar
+var building_box: VBoxContainer
 var building_label: Label
 var building_bar: ProgressBar
+var progress_panel: PanelContainer
+var action_buttons: HBoxContainer
 var training_started_unix := 0.0
 var training_completes_unix := 0.0
 var training_completion_refresh_requested := false
@@ -40,19 +50,24 @@ var active_building_label := "Build"
 var claim_button: Button
 var build_log_camp_button: Button
 var build_mine_button: Button
+var build_barracks_button: Button
 var selected_q := 0
 var selected_r := 0
 var selected_can_claim := false
 var selected_can_build_log_camp := false
 var selected_can_build_mine := false
+var selected_can_build_barracks := false
 var selected_is_home := false
 var completed_scout_count := 0
+var refresh_prompt_active := false
+var refresh_request_active := false
 
 
 func _ready() -> void:
 	session = _load_session()
 	_build_ui()
 	_assign_home_location()
+	_start_auth_watch()
 
 
 func _process(_delta: float) -> void:
@@ -100,10 +115,10 @@ func _build_ui() -> void:
 	top_margin.add_theme_constant_override("margin_bottom", 12)
 	top_bar.add_child(top_margin)
 
-	var top_content := HBoxContainer.new()
+	var title_row := HBoxContainer.new()
-	top_content.alignment = BoxContainer.ALIGNMENT_CENTER
+	title_row.alignment = BoxContainer.ALIGNMENT_CENTER
-	top_content.add_theme_constant_override("separation", 16)
+	title_row.add_theme_constant_override("separation", 16)
-	top_margin.add_child(top_content)
+	top_margin.add_child(title_row)
 
 	var title := Label.new()
 	title.text = "Territory Map"
@@ -112,11 +127,11 @@ func _build_ui() -> void:
 	title.add_theme_color_override("font_color", Color(0.94, 0.96, 0.9))
 	if title_font:
 		title.add_theme_font_override("font", title_font)
-	top_content.add_child(title)
+	title_row.add_child(title)
 
 	var legend := HBoxContainer.new()
 	legend.add_theme_constant_override("separation", 12)
-	top_content.add_child(legend)
+	title_row.add_child(legend)
 
 	legend.add_child(_legend_item(Color(1.0, 0.76, 0.16), "Home"))
 	legend.add_child(_legend_item(Color(0.16, 0.86, 0.92), "Yours"))
@@ -124,38 +139,11 @@ func _build_ui() -> void:
 	legend.add_child(_legend_item(Color(0.38, 0.56, 0.36), "Open"))
 	legend.add_child(_legend_item(Color(0.045, 0.065, 0.065), "Unknown"))
 
-	gold_label = Label.new()
-	gold_label.text = "Gold: --"
-	gold_label.add_theme_font_size_override("font_size", 15)
-	gold_label.add_theme_color_override("font_color", Color(0.95, 0.78, 0.32))
-	top_content.add_child(gold_label)
-
-	var tick_box := VBoxContainer.new()
-	tick_box.custom_minimum_size = Vector2(130, 0)
-	tick_box.add_theme_constant_override("separation", 4)
-	top_content.add_child(tick_box)
-
-	tick_label = Label.new()
-	tick_label.text = "Next: --"
-	tick_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
-	tick_label.add_theme_font_size_override("font_size", 12)
-	tick_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
-	tick_box.add_child(tick_label)
-
-	tick_bar = ProgressBar.new()
-	tick_bar.custom_minimum_size = Vector2(130, 8)
-	tick_bar.max_value = 1.0
-	tick_bar.value = 0.0
-	tick_bar.show_percentage = false
-	tick_bar.add_theme_stylebox_override("background", _progress_style(Color(0.035, 0.055, 0.055), Color(0.18, 0.28, 0.26)))
-	tick_bar.add_theme_stylebox_override("fill", _progress_style(Color(0.82, 0.65, 0.2), Color(0.9, 0.78, 0.36)))
-	tick_box.add_child(tick_bar)
-
 	var user_label := Label.new()
 	user_label.text = _session_name()
 	user_label.add_theme_font_size_override("font_size", 15)
 	user_label.add_theme_color_override("font_color", Color(0.63, 0.78, 0.75))
-	top_content.add_child(user_label)
+	title_row.add_child(user_label)
 
 	var map_frame := PanelContainer.new()
 	map_frame.size_flags_vertical = Control.SIZE_EXPAND_FILL
@@ -163,13 +151,20 @@ func _build_ui() -> void:
 	map_frame.add_theme_stylebox_override("panel", _panel_style(Color(0.065, 0.09, 0.09, 0.92), Color(0.19, 0.28, 0.27), 1, 0))
 	layout.add_child(map_frame)
 
+	var map_layer := Control.new()
+	map_layer.clip_contents = true
+	map_layer.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+	map_layer.size_flags_vertical = Control.SIZE_EXPAND_FILL
+	map_frame.add_child(map_layer)
+
 	grid_view = HexGridView.new()
 	grid_view.clip_contents = true
-	grid_view.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+	grid_view.set_anchors_preset(Control.PRESET_FULL_RECT)
-	grid_view.size_flags_vertical = Control.SIZE_EXPAND_FILL
 	grid_view.tile_hovered.connect(_on_tile_hovered)
 	grid_view.tile_selected.connect(_on_tile_selected)
-	map_frame.add_child(grid_view)
+	map_layer.add_child(grid_view)
+
+	_build_map_overlays(map_layer)
 
 	var bottom_bar := PanelContainer.new()
 	bottom_bar.custom_minimum_size = Vector2(0, 46)
@@ -183,85 +178,56 @@ func _build_ui() -> void:
 	bottom_margin.add_theme_constant_override("margin_bottom", 8)
 	bottom_bar.add_child(bottom_margin)
 
-	var bottom_content := HBoxContainer.new()
+	var status_row := HBoxContainer.new()
-	bottom_content.add_theme_constant_override("separation", 16)
+	status_row.add_theme_constant_override("separation", 10)
-	bottom_margin.add_child(bottom_content)
+	bottom_margin.add_child(status_row)
 
 	coordinate_label = Label.new()
 	coordinate_label.text = "Drag to pan. Mouse wheel zooms. Select a tile to inspect territory."
 	coordinate_label.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+	coordinate_label.clip_text = true
+	coordinate_label.text_overrun_behavior = TextServer.OVERRUN_TRIM_ELLIPSIS
 	coordinate_label.add_theme_font_size_override("font_size", 14)
 	coordinate_label.add_theme_color_override("font_color", Color(0.72, 0.8, 0.78))
-	bottom_content.add_child(coordinate_label)
+	status_row.add_child(coordinate_label)
 
-	unit_label = Label.new()
+	action_buttons = HBoxContainer.new()
-	unit_label.text = "Scouts: -- | Queue: --"
+	action_buttons.custom_minimum_size = Vector2(112, 0)
-	unit_label.custom_minimum_size = Vector2(142, 0)
+	action_buttons.size_flags_horizontal = Control.SIZE_SHRINK_END
-	unit_label.add_theme_font_size_override("font_size", 14)
+	action_buttons.add_theme_constant_override("separation", 6)
-	unit_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
+	status_row.add_child(action_buttons)
-	bottom_content.add_child(unit_label)
-
-	var training_box := VBoxContainer.new()
-	training_box.custom_minimum_size = Vector2(150, 0)
-	training_box.add_theme_constant_override("separation", 4)
-	bottom_content.add_child(training_box)
-
-	training_label = Label.new()
-	training_label.text = "Training: idle"
-	training_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
-	training_label.add_theme_font_size_override("font_size", 12)
-	training_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
-	training_box.add_child(training_label)
-
-	training_bar = ProgressBar.new()
-	training_bar.custom_minimum_size = Vector2(150, 8)
-	training_bar.max_value = 1.0
-	training_bar.value = 0.0
-	training_bar.show_percentage = false
-	training_bar.add_theme_stylebox_override("background", _progress_style(Color(0.035, 0.055, 0.055), Color(0.18, 0.28, 0.26)))
-	training_bar.add_theme_stylebox_override("fill", _progress_style(Color(0.28, 0.62, 0.72), Color(0.43, 0.82, 0.92)))
-	training_box.add_child(training_bar)
-
-	var building_box := VBoxContainer.new()
-	building_box.custom_minimum_size = Vector2(150, 0)
-	building_box.add_theme_constant_override("separation", 4)
-	bottom_content.add_child(building_box)
-
-	building_label = Label.new()
-	building_label.text = "Build: idle"
-	building_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
-	building_label.add_theme_font_size_override("font_size", 12)
-	building_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
-	building_box.add_child(building_label)
-
-	building_bar = ProgressBar.new()
-	building_bar.custom_minimum_size = Vector2(150, 8)
-	building_bar.max_value = 1.0
-	building_bar.value = 0.0
-	building_bar.show_percentage = false
-	building_bar.add_theme_stylebox_override("background", _progress_style(Color(0.035, 0.055, 0.055), Color(0.18, 0.28, 0.26)))
-	building_bar.add_theme_stylebox_override("fill", _progress_style(Color(0.62, 0.42, 0.22), Color(0.86, 0.62, 0.34)))
-	building_box.add_child(building_bar)
 
 	train_button = _small_button("Train Scout 50g")
 	train_button.visible = false
 	train_button.pressed.connect(_train_scout)
-	bottom_content.add_child(train_button)
+	action_buttons.add_child(train_button)
 
 	claim_button = _small_button("Claim 1 Scout")
-	claim_button.disabled = true
+	claim_button.visible = false
 	claim_button.pressed.connect(_claim_selected_tile)
-	bottom_content.add_child(claim_button)
+	action_buttons.add_child(claim_button)
 
 	build_log_camp_button = _small_button("Build Log Camp")
-	build_log_camp_button.disabled = true
+	build_log_camp_button.visible = false
 	build_log_camp_button.pressed.connect(_build_log_camp)
-	bottom_content.add_child(build_log_camp_button)
+	action_buttons.add_child(build_log_camp_button)
 
 	build_mine_button = _small_button("Build Mine")
-	build_mine_button.disabled = true
+	build_mine_button.visible = false
 	build_mine_button.pressed.connect(_build_mine)
-	bottom_content.add_child(build_mine_button)
+	action_buttons.add_child(build_mine_button)
+
+	build_barracks_button = _small_button("Build Barracks")
+	build_barracks_button.visible = false
+	build_barracks_button.pressed.connect(_build_barracks)
+	action_buttons.add_child(build_barracks_button)
+
+	unit_label = Label.new()
+	unit_label.text = "Scouts: -- | Queue: --"
+	unit_label.custom_minimum_size = Vector2(126, 0)
+	unit_label.add_theme_font_size_override("font_size", 14)
+	unit_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
+	status_row.add_child(unit_label)
 
 	http_request = HTTPRequest.new()
 	http_request.request_completed.connect(_on_home_request_completed)
@@ -291,15 +257,144 @@ func _build_ui() -> void:
 	build_request.request_completed.connect(_on_build_request_completed)
 	add_child(build_request)
 
+	refresh_request = HTTPRequest.new()
+	refresh_request.request_completed.connect(_on_refresh_request_completed)
+	add_child(refresh_request)
+
+	auth_check_timer = Timer.new()
+	auth_check_timer.wait_time = 15.0
+	auth_check_timer.autostart = false
+	auth_check_timer.timeout.connect(_check_auth_expiry)
+	add_child(auth_check_timer)
+
 	resources_timer = Timer.new()
 	resources_timer.wait_time = RESOURCE_REFRESH_SECONDS
 	resources_timer.autostart = false
 	resources_timer.timeout.connect(_refresh_player_state)
 	add_child(resources_timer)
 
+	_build_refresh_dialog()
 	_build_escape_menu()
 
 
+func _build_map_overlays(map_layer: Control) -> void:
+	var resource_panel := PanelContainer.new()
+	resource_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	resource_panel.anchor_left = 1.0
+	resource_panel.anchor_right = 1.0
+	resource_panel.anchor_top = 0.0
+	resource_panel.anchor_bottom = 0.0
+	resource_panel.offset_left = -230
+	resource_panel.offset_right = -16
+	resource_panel.offset_top = 16
+	resource_panel.offset_bottom = 128
+	resource_panel.add_theme_stylebox_override("panel", _panel_style(Color(0.045, 0.07, 0.07, 0.78), Color(0.18, 0.28, 0.26), 1, 4))
+	map_layer.add_child(resource_panel)
+
+	var resource_margin := MarginContainer.new()
+	resource_margin.add_theme_constant_override("margin_left", 12)
+	resource_margin.add_theme_constant_override("margin_right", 12)
+	resource_margin.add_theme_constant_override("margin_top", 10)
+	resource_margin.add_theme_constant_override("margin_bottom", 10)
+	resource_panel.add_child(resource_margin)
+
+	var resource_stack := VBoxContainer.new()
+	resource_stack.add_theme_constant_override("separation", 6)
+	resource_margin.add_child(resource_stack)
+
+	gold_label = Label.new()
+	gold_label.text = resource_text
+	gold_label.add_theme_font_size_override("font_size", 14)
+	gold_label.add_theme_color_override("font_color", Color(0.95, 0.78, 0.32))
+	resource_stack.add_child(gold_label)
+
+	tick_label = Label.new()
+	tick_label.text = "Next: --"
+	tick_label.add_theme_font_size_override("font_size", 12)
+	tick_label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
+	resource_stack.add_child(tick_label)
+
+	tick_bar = ProgressBar.new()
+	tick_bar.custom_minimum_size = Vector2(180, 8)
+	tick_bar.max_value = 1.0
+	tick_bar.value = 0.0
+	tick_bar.show_percentage = false
+	tick_bar.add_theme_stylebox_override("background", _progress_style(Color(0.035, 0.055, 0.055), Color(0.18, 0.28, 0.26)))
+	tick_bar.add_theme_stylebox_override("fill", _progress_style(Color(0.82, 0.65, 0.2), Color(0.9, 0.78, 0.36)))
+	resource_stack.add_child(tick_bar)
+
+	progress_panel = PanelContainer.new()
+	progress_panel.visible = false
+	progress_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	progress_panel.anchor_left = 0.0
+	progress_panel.anchor_right = 0.0
+	progress_panel.anchor_top = 0.0
+	progress_panel.anchor_bottom = 0.0
+	progress_panel.offset_left = 16
+	progress_panel.offset_right = 220
+	progress_panel.offset_top = 16
+	progress_panel.offset_bottom = 130
+	progress_panel.add_theme_stylebox_override("panel", _panel_style(Color(0.045, 0.07, 0.07, 0.78), Color(0.18, 0.28, 0.26), 1, 4))
+	map_layer.add_child(progress_panel)
+
+	var progress_margin := MarginContainer.new()
+	progress_margin.add_theme_constant_override("margin_left", 12)
+	progress_margin.add_theme_constant_override("margin_right", 12)
+	progress_margin.add_theme_constant_override("margin_top", 10)
+	progress_margin.add_theme_constant_override("margin_bottom", 10)
+	progress_panel.add_child(progress_margin)
+
+	var progress_stack := VBoxContainer.new()
+	progress_stack.add_theme_constant_override("separation", 8)
+	progress_margin.add_child(progress_stack)
+
+	training_box = _progress_overlay_item("Training")
+	progress_stack.add_child(training_box)
+	training_label = training_box.get_child(0) as Label
+	training_bar = training_box.get_child(1) as ProgressBar
+
+	building_box = _progress_overlay_item("Build")
+	progress_stack.add_child(building_box)
+	building_label = building_box.get_child(0) as Label
+	building_bar = building_box.get_child(1) as ProgressBar
+	building_bar.add_theme_stylebox_override("fill", _progress_style(Color(0.62, 0.42, 0.22), Color(0.86, 0.62, 0.34)))
+
+
+func _progress_overlay_item(label_text: String) -> VBoxContainer:
+	var box := VBoxContainer.new()
+	box.visible = false
+	box.custom_minimum_size = Vector2(180, 0)
+	box.add_theme_constant_override("separation", 4)
+
+	var label := Label.new()
+	label.text = label_text
+	label.add_theme_font_size_override("font_size", 12)
+	label.add_theme_color_override("font_color", Color(0.72, 0.82, 0.78))
+	box.add_child(label)
+
+	var bar := ProgressBar.new()
+	bar.custom_minimum_size = Vector2(180, 8)
+	bar.max_value = 1.0
+	bar.value = 0.0
+	bar.show_percentage = false
+	bar.add_theme_stylebox_override("background", _progress_style(Color(0.035, 0.055, 0.055), Color(0.18, 0.28, 0.26)))
+	bar.add_theme_stylebox_override("fill", _progress_style(Color(0.28, 0.62, 0.72), Color(0.43, 0.82, 0.92)))
+	box.add_child(bar)
+
+	return box
+
+
+func _build_refresh_dialog() -> void:
+	refresh_dialog = ConfirmationDialog.new()
+	refresh_dialog.title = "Session expiring"
+	refresh_dialog.dialog_text = "Your session is about to expire. Refresh it now?"
+	refresh_dialog.ok_button_text = "Refresh"
+	refresh_dialog.cancel_button_text = "Log Out"
+	refresh_dialog.confirmed.connect(_refresh_auth_token)
+	refresh_dialog.canceled.connect(_logout)
+	add_child(refresh_dialog)
+
+
 func _on_tile_hovered(q: int, r: int, terrain: String) -> void:
 	if coordinate_label:
 		coordinate_label.text = "Hex q:%d r:%d | %s" % [q, r, terrain]
@@ -312,14 +407,8 @@ func _on_tile_selected(q: int, r: int, terrain: String) -> void:
 	selected_is_home = _selected_tile_is_home()
 	selected_can_build_log_camp = _can_build_log_camp_on_selected_tile()
 	selected_can_build_mine = _can_build_mine_on_selected_tile()
-	if train_button:
+	selected_can_build_barracks = _can_build_barracks_on_selected_tile()
-		train_button.visible = selected_is_home
+	_update_action_buttons()
-	if claim_button:
-		claim_button.disabled = not _can_claim_selected_tile()
-	if build_log_camp_button:
-		build_log_camp_button.disabled = not selected_can_build_log_camp
-	if build_mine_button:
-		build_mine_button.disabled = not selected_can_build_mine
 	if coordinate_label:
 		coordinate_label.text = "Selected q:%d r:%d | %s territory" % [q, r, terrain]
 
@@ -332,6 +421,10 @@ func _can_build_mine_on_selected_tile() -> bool:
 	return _can_build_on_selected_tile("Ore")
 
 
+func _can_build_barracks_on_selected_tile() -> bool:
+	return _can_build_on_selected_tile("")
+
+
 func _can_build_on_selected_tile(required_terrain: String) -> bool:
 	if not grid_view:
 		return false
@@ -343,13 +436,31 @@ func _can_build_on_selected_tile(required_terrain: String) -> bool:
 	var username: String = str(session.get("username", ""))
 	var owner_username: String = str(location.get("ownerUsername", ""))
 	var terrain: String = str(location.get("terrain", ""))
-	var building_type: String = str(location.get("buildingType", ""))
+	var building_type: String = _nullable_string(location.get("buildingType", ""))
 
-	return owner_username == username and terrain == required_terrain and building_type.is_empty()
+	return owner_username == username and building_type.is_empty() and (required_terrain.is_empty() or terrain == required_terrain)
 
 
 func _can_claim_selected_tile() -> bool:
-	return selected_can_claim and completed_scout_count > 0
+	return selected_can_claim and completed_scout_count > 0 and grid_view and grid_view.has_owned_neighbor(selected_q, selected_r)
+
+
+func _update_action_buttons() -> void:
+	if train_button:
+		train_button.visible = selected_is_home
+		train_button.disabled = false
+	if claim_button:
+		claim_button.visible = _can_claim_selected_tile()
+		claim_button.disabled = false
+	if build_log_camp_button:
+		build_log_camp_button.visible = selected_can_build_log_camp
+		build_log_camp_button.disabled = false
+	if build_mine_button:
+		build_mine_button.visible = selected_can_build_mine
+		build_mine_button.disabled = false
+	if build_barracks_button:
+		build_barracks_button.visible = selected_can_build_barracks
+		build_barracks_button.disabled = false
 
 
 func _selected_tile_is_home() -> bool:
@@ -391,6 +502,97 @@ func _load_session() -> Dictionary:
 	return {}
 
 
+func _start_auth_watch() -> void:
+	_check_auth_expiry()
+	if auth_check_timer:
+		auth_check_timer.start()
+
+
+func _check_auth_expiry() -> void:
+	if session.is_empty() or refresh_prompt_active or refresh_request_active:
+		return
+
+	var expires_unix := _parse_utc_timestamp(str(session.get("exp", "")))
+	if expires_unix <= 0.0:
+		return
+
+	var seconds_remaining := expires_unix - Time.get_unix_time_from_system()
+	if seconds_remaining <= 0.0:
+		_logout_deferred()
+		return
+
+	if seconds_remaining <= TOKEN_REFRESH_PROMPT_SECONDS:
+		_prompt_refresh_or_logout("Your session expires in %d seconds. Refresh it now?" % int(ceil(seconds_remaining)))
+
+
+func _prompt_refresh_or_logout(message: String) -> void:
+	if refresh_prompt_active or refresh_request_active:
+		return
+
+	refresh_prompt_active = true
+	if refresh_dialog:
+		refresh_dialog.dialog_text = message
+		refresh_dialog.popup_centered()
+
+
+func _refresh_auth_token() -> void:
+	refresh_prompt_active = false
+	var username := str(session.get("username", ""))
+	var refresh_token := str(session.get("refreshToken", ""))
+	if username.is_empty() or refresh_token.is_empty():
+		_logout()
+		return
+
+	refresh_request_active = true
+	var error: int = refresh_request.request(
+		AUTH_BASE_URL + "/api/auth/refresh",
+		PackedStringArray(["Content-Type: application/json"]),
+		HTTPClient.METHOD_POST,
+		JSON.stringify({
+			"username": username,
+			"refreshToken": refresh_token
+		})
+	)
+	if error != OK:
+		refresh_request_active = false
+		_logout()
+
+
+func _on_refresh_request_completed(result: int, response_code: int, _headers: PackedStringArray, body: PackedByteArray) -> void:
+	refresh_request_active = false
+	if result != HTTPRequest.RESULT_SUCCESS or response_code < 200 or response_code >= 300:
+		_logout()
+		return
+
+	var parsed = JSON.parse_string(body.get_string_from_utf8())
+	if typeof(parsed) != TYPE_DICTIONARY:
+		_logout()
+		return
+
+	var refreshed: Dictionary = parsed
+	session["accessToken"] = refreshed.get("accessToken", session.get("accessToken", ""))
+	session["exp"] = refreshed.get("exp", session.get("exp", ""))
+	get_tree().set_meta("auth_session", session)
+	_save_session_if_present(session)
+	coordinate_label.text = "Session refreshed."
+	_check_auth_expiry()
+
+
+func _save_session(next_session: Dictionary) -> void:
+	var file := FileAccess.open(SESSION_PATH, FileAccess.WRITE)
+	if file:
+		file.store_string(JSON.stringify(next_session))
+
+
+func _save_session_if_present(next_session: Dictionary) -> void:
+	if FileAccess.file_exists(SESSION_PATH):
+		_save_session(next_session)
+
+
+func _logout_deferred() -> void:
+	call_deferred("_logout")
+
+
 func _assign_home_location() -> void:
 	var access_token: String = str(session.get("accessToken", ""))
 	if access_token.is_empty():
@@ -484,7 +686,8 @@ func _refresh_player_state() -> void:
 func _load_resources() -> void:
 	var access_token: String = str(session.get("accessToken", ""))
 	if access_token.is_empty():
-		gold_label.text = "Gold: --"
+		resource_text = "Gold: --\nWood: --\nOre: --"
+		gold_label.text = resource_text
 		return
 
 	if resources_request.get_http_client_status() != HTTPClient.STATUS_DISCONNECTED:
@@ -498,17 +701,20 @@ func _load_resources() -> void:
 		HTTPClient.METHOD_GET
 	)
 	if error != OK:
-		gold_label.text = "Gold: ?"
+		coordinate_label.text = "Resource request could not start. Error: %d" % error
 
 
 func _on_resources_request_completed(result: int, response_code: int, _headers: PackedStringArray, body: PackedByteArray) -> void:
 	if result != HTTPRequest.RESULT_SUCCESS or response_code < 200 or response_code >= 300:
-		gold_label.text = "Gold: ?"
+		if response_code == 401:
+			_prompt_refresh_or_logout("Your session expired. Refresh it now?")
+			return
+		coordinate_label.text = "Resource request failed. result=%d status=%d body=%s" % [result, response_code, body.get_string_from_utf8()]
 		return
 
 	var parsed = JSON.parse_string(body.get_string_from_utf8())
 	if typeof(parsed) != TYPE_DICTIONARY:
-		gold_label.text = "Gold: ?"
+		coordinate_label.text = "Resource service returned invalid JSON."
 		return
 
 	var resources: Dictionary = parsed
@@ -518,7 +724,8 @@ func _on_resources_request_completed(result: int, response_code: int, _headers:
 	var wood_per_minute: int = int(resources.get("woodPerMinute", 0))
 	var ore: int = int(resources.get("ore", 0))
 	var ore_per_minute: int = int(resources.get("orePerMinute", 0))
-	gold_label.text = "Gold: %d (+%d/min) | Wood: %d (+%d/min) | Ore: %d (+%d/min)" % [gold, gold_per_minute, wood, wood_per_minute, ore, ore_per_minute]
+	resource_text = "Gold: %d (+%d/min)\nWood: %d (+%d/min)\nOre: %d (+%d/min)" % [gold, gold_per_minute, wood, wood_per_minute, ore, ore_per_minute]
+	gold_label.text = resource_text
 
 	var anchor_text: String = str(resources.get("lastGoldGeneratedAtUtc", ""))
 	gold_tick_anchor_unix = _parse_utc_timestamp(anchor_text)
@@ -565,8 +772,7 @@ func _on_units_request_completed(result: int, response_code: int, _headers: Pack
 
 	completed_scout_count = int(units.get("completedScouts", 0))
 	unit_label.text = "Scouts: %d | Queue: %d" % [completed_scout_count, training.size()]
-	if claim_button:
+	_update_action_buttons()
-		claim_button.disabled = not _can_claim_selected_tile()
 
 	if training.is_empty():
 		training_started_unix = 0.0
@@ -640,6 +846,9 @@ func _claim_selected_tile() -> void:
 	if completed_scout_count <= 0:
 		coordinate_label.text = "Train a scout before claiming territory."
 		return
+	if not grid_view.has_owned_neighbor(selected_q, selected_r):
+		coordinate_label.text = "Claims must be adjacent to controlled territory."
+		return
 
 	var access_token: String = str(session.get("accessToken", ""))
 	if access_token.is_empty():
@@ -661,7 +870,7 @@ func _claim_selected_tile() -> void:
 		JSON.stringify({ "q": selected_q, "r": selected_r })
 	)
 	if error != OK:
-		claim_button.disabled = false
+		_update_action_buttons()
 		coordinate_label.text = "Could not contact the locations service."
 
 
@@ -669,17 +878,17 @@ func _on_claim_request_completed(result: int, response_code: int, _headers: Pack
 	var text: String = body.get_string_from_utf8()
 	if result != HTTPRequest.RESULT_SUCCESS:
 		coordinate_label.text = "Scout claim request failed."
-		claim_button.disabled = not selected_can_claim
+		_update_action_buttons()
 		return
 
 	if response_code < 200 or response_code >= 300:
 		coordinate_label.text = "Scout claim failed: %s" % text
-		claim_button.disabled = not selected_can_claim
+		_update_action_buttons()
 		_refresh_player_state()
 		return
 
 	selected_can_claim = false
-	claim_button.disabled = true
+	_update_action_buttons()
 	coordinate_label.text = "Scout claimed q:%d r:%d. Territory expanded." % [selected_q, selected_r]
 	_load_visible_locations()
 	_refresh_player_state()
@@ -701,6 +910,14 @@ func _build_mine() -> void:
 	_request_building("Mine")
 
 
+func _build_barracks() -> void:
+	if not selected_can_build_barracks:
+		coordinate_label.text = "Select controlled territory without a building."
+		return
+
+	_request_building("Barracks")
+
+
 func _request_building(building_type: String) -> void:
 	var access_token: String = str(session.get("accessToken", ""))
 	if access_token.is_empty():
@@ -710,10 +927,13 @@ func _request_building(building_type: String) -> void:
 	if build_request.get_http_client_status() != HTTPClient.STATUS_DISCONNECTED:
 		return
 
-	if building_type == "Mine":
+	match building_type:
-		build_mine_button.disabled = true
+		"Mine":
-	else:
+			build_mine_button.disabled = true
-		build_log_camp_button.disabled = true
+		"Barracks":
+			build_barracks_button.disabled = true
+		_:
+			build_log_camp_button.disabled = true
 
 	coordinate_label.text = "Building %s at q:%d r:%d..." % [building_type, selected_q, selected_r]
 	var error: int = build_request.request(
@@ -726,8 +946,7 @@ func _request_building(building_type: String) -> void:
 		JSON.stringify({ "q": selected_q, "r": selected_r, "buildingType": building_type })
 	)
 	if error != OK:
-		build_log_camp_button.disabled = not selected_can_build_log_camp
+		_update_action_buttons()
-		build_mine_button.disabled = not selected_can_build_mine
 		coordinate_label.text = "Could not contact the locations service."
 
 
@@ -735,25 +954,23 @@ func _on_build_request_completed(result: int, response_code: int, _headers: Pack
 	var text: String = body.get_string_from_utf8()
 	if result != HTTPRequest.RESULT_SUCCESS:
 		coordinate_label.text = "Build request failed."
-		build_log_camp_button.disabled = not selected_can_build_log_camp
+		_update_action_buttons()
-		build_mine_button.disabled = not selected_can_build_mine
 		return
 
 	if response_code < 200 or response_code >= 300:
 		coordinate_label.text = "Build failed: %s" % text
-		build_log_camp_button.disabled = not selected_can_build_log_camp
+		_update_action_buttons()
-		build_mine_button.disabled = not selected_can_build_mine
 		_refresh_player_state()
 		return
 
 	selected_can_build_log_camp = false
 	selected_can_build_mine = false
-	build_log_camp_button.disabled = true
+	selected_can_build_barracks = false
-	build_mine_button.disabled = true
+	_update_action_buttons()
 	var parsed = JSON.parse_string(text)
 	if typeof(parsed) == TYPE_DICTIONARY:
 		var location: Dictionary = parsed
-		active_building_label = _building_display_name(str(location.get("buildingType", "Building")))
+		active_building_label = _building_display_name(_nullable_string(location.get("buildingType", "Building")))
 		building_started_unix = _parse_utc_timestamp(str(location.get("buildingStartedAtUtc", "")))
 		building_completes_unix = _parse_utc_timestamp(str(location.get("buildingCompletesAtUtc", "")))
 		building_completion_refresh_requested = false
@@ -787,10 +1004,13 @@ func _update_training_bar() -> void:
 		return
 
 	if training_started_unix <= 0.0 or training_completes_unix <= 0.0:
+		training_box.visible = false
 		training_bar.value = 0.0
 		training_label.text = "Training: idle"
+		_update_progress_panel_visibility()
 		return
 
+	training_box.visible = true
 	var now: float = Time.get_unix_time_from_system()
 	var duration: float = max(1.0, training_completes_unix - training_started_unix)
 	var elapsed: float = clamp(now - training_started_unix, 0.0, duration)
@@ -804,6 +1024,7 @@ func _update_training_bar() -> void:
 			_load_units()
 	else:
 		training_label.text = "Training: %ds" % remaining
+	_update_progress_panel_visibility()
 
 
 func _update_building_timer() -> void:
@@ -811,10 +1032,13 @@ func _update_building_timer() -> void:
 		return
 
 	if building_started_unix <= 0.0 or building_completes_unix <= 0.0:
+		building_box.visible = false
 		building_bar.value = 0.0
 		building_label.text = "Build: idle"
+		_update_progress_panel_visibility()
 		return
 
+	building_box.visible = true
 	var now: float = Time.get_unix_time_from_system()
 	var duration: float = max(1.0, building_completes_unix - building_started_unix)
 	var elapsed: float = clamp(now - building_started_unix, 0.0, duration)
@@ -830,6 +1054,12 @@ func _update_building_timer() -> void:
 		building_completion_refresh_requested = true
 		_load_visible_locations()
 		_refresh_player_state()
+	_update_progress_panel_visibility()
+
+
+func _update_progress_panel_visibility() -> void:
+	if progress_panel:
+		progress_panel.visible = (training_box and training_box.visible) or (building_box and building_box.visible)
 
 
 func _sync_active_building_timer(locations: Array, username: String) -> void:
@@ -844,7 +1074,7 @@ func _sync_active_building_timer(locations: Array, username: String) -> void:
 		var location: Dictionary = item
 		if str(location.get("ownerUsername", "")) != username:
 			continue
-		var building_type: String = str(location.get("buildingType", ""))
+		var building_type: String = _nullable_string(location.get("buildingType", ""))
 		if building_type.is_empty():
 			continue
 		if str(location.get("buildingStatus", "")) != "Building":
@@ -872,6 +1102,8 @@ func _building_display_name(building_type: String) -> String:
 			return "Log Camp"
 		"Mine":
 			return "Mine"
+		"Barracks":
+			return "Barracks"
 		_:
 			return "Build"
 
@@ -895,6 +1127,12 @@ func _parse_utc_timestamp(timestamp: String) -> float:
 	return Time.get_unix_time_from_datetime_string(normalized)
 
 
+func _nullable_string(value: Variant) -> String:
+	if value == null:
+		return ""
+	return str(value)
+
+
 func _build_escape_menu() -> void:
 	escape_overlay = Control.new()
 	escape_overlay.visible = false
@@ -995,8 +1233,10 @@ func _menu_button(text_value: String) -> Button:
 
 func _small_button(text_value: String) -> Button:
 	var button := _menu_button(text_value)
-	button.custom_minimum_size = Vector2(128, 32)
+	button.custom_minimum_size = Vector2(108, 32)
-	button.add_theme_font_size_override("font_size", 13)
+	button.add_theme_font_size_override("font_size", 11)
+	button.clip_text = true
+	button.text_overrun_behavior = TextServer.OVERRUN_TRIM_ELLIPSIS
 	return button
 
 

game/territory-autobattler/scenes/game/hex_grid_view.gd

@@ -161,14 +161,16 @@ func _draw_tile(tile: Dictionary) -> void:
 		draw_polyline(_closed_points(points), Color(1.0, 0.88, 0.38), 3.0)
 
 	var visible_location: Dictionary = visible_tiles.get(key, {})
-	var building_type: String = str(visible_location.get("buildingType", ""))
+	var building_type: String = _nullable_string(visible_location.get("buildingType", ""))
-	var building_status: String = str(visible_location.get("buildingStatus", ""))
+	var building_status: String = _nullable_string(visible_location.get("buildingStatus", ""))
 	if coord == home_tile:
 		_draw_town_hall_marker(center, height)
 	elif building_type == "LogCamp" and (building_status == "Built" or building_status.is_empty()):
 		_draw_log_camp_marker(center, height)
 	elif building_type == "Mine" and (building_status == "Built" or building_status.is_empty()):
 		_draw_mine_marker(center, height)
+	elif building_type == "Barracks" and (building_status == "Built" or building_status.is_empty()):
+		_draw_barracks_marker(center, height)
 	elif not building_type.is_empty():
 		_draw_building_marker(center, height)
 
@@ -329,6 +331,37 @@ func _draw_mine_marker(center: Vector2, height: float) -> void:
 	draw_circle(marker_center + Vector2(width * 0.34, -marker_height * 0.1), 2.0 * zoom, ore_color)
 
 
+func _draw_barracks_marker(center: Vector2, height: float) -> void:
+	var marker_center: Vector2 = center + Vector2(0, -height * zoom - 3.0)
+	var width: float = 22.0 * zoom
+	var marker_height: float = 15.0 * zoom
+	var wall_color := Color(0.52, 0.36, 0.24)
+	var roof_color := Color(0.25, 0.18, 0.13)
+	var banner_color := Color(0.82, 0.18, 0.16)
+	var trim_color := Color(0.78, 0.58, 0.34)
+	var shadow_color := Color(0.09, 0.06, 0.04)
+
+	var body_rect := Rect2(marker_center + Vector2(-width * 0.42, -marker_height * 0.05), Vector2(width * 0.84, marker_height * 0.62))
+	var roof := PackedVector2Array([
+		marker_center + Vector2(-width * 0.52, -marker_height * 0.05),
+		marker_center + Vector2(0, -marker_height * 0.58),
+		marker_center + Vector2(width * 0.52, -marker_height * 0.05)
+	])
+	var banner := PackedVector2Array([
+		marker_center + Vector2(width * 0.16, -marker_height * 0.7),
+		marker_center + Vector2(width * 0.42, -marker_height * 0.62),
+		marker_center + Vector2(width * 0.16, -marker_height * 0.46)
+	])
+
+	draw_rect(Rect2(body_rect.position + Vector2(1, 1) * zoom, body_rect.size), shadow_color, true)
+	draw_colored_polygon(roof, roof_color)
+	draw_rect(body_rect, wall_color, true)
+	draw_line(marker_center + Vector2(-width * 0.52, marker_height * 0.58), marker_center + Vector2(width * 0.52, marker_height * 0.58), trim_color, 2.0 * zoom)
+	draw_line(marker_center + Vector2(width * 0.16, -marker_height * 0.78), marker_center + Vector2(width * 0.16, marker_height * 0.1), trim_color.darkened(0.25), 2.0 * zoom)
+	draw_colored_polygon(banner, banner_color)
+	draw_rect(Rect2(marker_center + Vector2(-width * 0.1, marker_height * 0.24), Vector2(width * 0.2, marker_height * 0.33)), shadow_color.lightened(0.2), true)
+
+
 func _draw_town_hall_marker(center: Vector2, height: float) -> void:
 	var marker_center: Vector2 = center + Vector2(0, -height * zoom - 3.0)
 	var width: float = 24.0 * zoom
@@ -434,6 +467,13 @@ func get_visible_location(q: int, r: int) -> Dictionary:
 	return {}
 
 
+func has_owned_neighbor(q: int, r: int) -> bool:
+	for neighbor in _neighbor_coordinates(q, r):
+		if owned_tiles.has(_tile_key(neighbor.x, neighbor.y)):
+			return true
+	return false
+
+
 func _tile_key(q: int, r: int) -> String:
 	return "%d,%d" % [q, r]
 
@@ -481,13 +521,15 @@ func _neighbor_coordinates(q: int, r: int) -> Array[Vector2i]:
 
 func _tile_display_label(key: String, data: Dictionary) -> String:
 	var terrain: String = str(data.get("terrain", "Open"))
-	var building_type: String = str(data.get("buildingType", ""))
+	var building_type: String = _nullable_string(data.get("buildingType", ""))
-	var building_status: String = str(data.get("buildingStatus", ""))
+	var building_status: String = _nullable_string(data.get("buildingStatus", ""))
 	var building_label: String = ""
 	if building_type == "LogCamp":
 		building_label = " | Log Camp" if building_status == "Built" or building_status.is_empty() else " | Log Camp building"
 	elif building_type == "Mine":
 		building_label = " | Mine" if building_status == "Built" or building_status.is_empty() else " | Mine building"
+	elif building_type == "Barracks":
+		building_label = " | Barracks" if building_status == "Built" or building_status.is_empty() else " | Barracks building"
 
 	if home_tile == Vector2i(int(data.get("q", 0)), int(data.get("r", 0))):
 		return "%s | Your home%s" % [terrain, building_label]
@@ -509,6 +551,12 @@ func _owner_username(location: Dictionary) -> String:
 	return str(owner_value)
 
 
+func _nullable_string(value: Variant) -> String:
+	if value == null:
+		return ""
+	return str(value)
+
+
 func _tile_height(q: int, r: int) -> float:
 	var distance: int = max(max(abs(q), abs(r)), abs(-q - r))
 	if distance <= 1:

microservices/LocationsApi/Controllers/LocationsController.cs

@@ -88,6 +88,11 @@ public class LocationsController : ControllerBase
             return NotFound();
         }
 
+        if (!User.IsInRole("SUPER") && !await _locations.IsAdjacentToOwnedAsync(username, request.Q, request.R))
+        {
+            return BadRequest("Territory claims must be adjacent to controlled territory.");
+        }
+
         var existingLocation = await _locations.GetAsync(request.Q, request.R);
         if (existingLocation is not null && !string.IsNullOrWhiteSpace(existingLocation.OwnerUsername))
         {

microservices/LocationsApi/Models/Dto.cs

@@ -52,7 +52,7 @@ public class LocationResponse
         Label = location.Label,
         Level = location.Level,
         BuildingType = location.BuildingType,
-        BuildingStatus = (location.BuildingType == "LogCamp" || location.BuildingType == "Mine") && string.IsNullOrWhiteSpace(location.BuildingStatus)
+        BuildingStatus = (location.BuildingType == "LogCamp" || location.BuildingType == "Mine" || location.BuildingType == "Barracks") && string.IsNullOrWhiteSpace(location.BuildingStatus)
             ? "Built"
             : location.BuildingStatus,
         BuildingStartedAtUtc = location.BuildingStartedAtUtc,

microservices/LocationsApi/README.md

@@ -44,8 +44,10 @@ training record.
 Buildings are stored on location records. `LogCamp` can be built on controlled
 Forest territory, takes 60 seconds to build, and adds 5 wood per minute after it
 finishes. `Mine` can be built on controlled Ore territory, takes 60 seconds to
-build, and adds 5 ore per minute after it finishes. Each location has one
+build, and adds 5 ore per minute after it finishes. `Barracks` can be built on
-building slot; a building under construction occupies that slot.
+any controlled territory, costs 500 gold, 100 wood, and 100 ore, and takes 60
+seconds to build. Each location has one building slot; a building under
+construction occupies that slot.
 
 Timer settings are stored in the MongoDB `GameSettings` collection and are
 seeded on first read:
@@ -53,3 +55,4 @@ seeded on first read:
 - `ScoutTrainingSeconds`
 - `LogCampBuildSeconds`
 - `MineBuildSeconds`
+- `BarracksBuildSeconds`

microservices/LocationsApi/Services/GameSettingsService.cs

@@ -8,6 +8,7 @@ public class GameSettingsService
     public const string ScoutTrainingSeconds = "ScoutTrainingSeconds";
     public const string LogCampBuildSeconds = "LogCampBuildSeconds";
     public const string MineBuildSeconds = "MineBuildSeconds";
+    public const string BarracksBuildSeconds = "BarracksBuildSeconds";
 
     private readonly IMongoCollection<GameSetting> _settings;
 

microservices/LocationsApi/Services/LocationService.cs

@@ -15,6 +15,10 @@ public class LocationService
     private readonly int _mineOrePerMinute;
     private readonly int _defaultLogCampBuildSeconds;
     private readonly int _defaultMineBuildSeconds;
+    private readonly int _defaultBarracksBuildSeconds;
+    private readonly int _barracksGoldCost;
+    private readonly int _barracksWoodCost;
+    private readonly int _barracksOreCost;
 
     public LocationService(IConfiguration cfg, ResourceService resources, GameSettingsService settings)
     {
@@ -40,6 +44,18 @@ public class LocationService
         _defaultMineBuildSeconds = int.TryParse(cfg["Buildings:MineBuildSeconds"], out var mineBuildSeconds)
             ? Math.Max(1, mineBuildSeconds)
             : 60;
+        _defaultBarracksBuildSeconds = int.TryParse(cfg["Buildings:BarracksBuildSeconds"], out var barracksBuildSeconds)
+            ? Math.Max(1, barracksBuildSeconds)
+            : 60;
+        _barracksGoldCost = int.TryParse(cfg["Buildings:BarracksGoldCost"], out var barracksGoldCost)
+            ? Math.Max(0, barracksGoldCost)
+            : 500;
+        _barracksWoodCost = int.TryParse(cfg["Buildings:BarracksWoodCost"], out var barracksWoodCost)
+            ? Math.Max(0, barracksWoodCost)
+            : 100;
+        _barracksOreCost = int.TryParse(cfg["Buildings:BarracksOreCost"], out var barracksOreCost)
+            ? Math.Max(0, barracksOreCost)
+            : 100;
 
         var coordinateIndex = Builders<Location>.IndexKeys
             .Ascending(x => x.Q)
@@ -149,8 +165,8 @@ public class LocationService
             throw new InvalidOperationException("This location already has a building or construction in progress.");
         }
 
-        var requiredTerrain = buildingType == "LogCamp" ? "Forest" : "Ore";
+        var requiredTerrain = RequiredTerrainForBuilding(buildingType);
-        if (!string.Equals(location.Terrain, requiredTerrain, StringComparison.OrdinalIgnoreCase))
+        if (requiredTerrain is not null && !string.Equals(location.Terrain, requiredTerrain, StringComparison.OrdinalIgnoreCase))
         {
             throw new InvalidOperationException($"{buildingType} can only be built on {requiredTerrain} territory.");
         }
@@ -158,12 +174,8 @@ public class LocationService
         await CompleteFinishedBuildingsAsync(username);
 
         var now = DateTime.UtcNow;
-        var settingKey = buildingType == "LogCamp"
+        var settingKey = BuildSecondsSettingKey(buildingType);
-            ? GameSettingsService.LogCampBuildSeconds
+        var defaultBuildSeconds = DefaultBuildSeconds(buildingType);
-            : GameSettingsService.MineBuildSeconds;
-        var defaultBuildSeconds = buildingType == "LogCamp"
-            ? _defaultLogCampBuildSeconds
-            : _defaultMineBuildSeconds;
         var buildSeconds = await _settings.GetIntAsync(settingKey, defaultBuildSeconds);
         var update = Builders<Location>.Update
             .Set(x => x.BuildingType, buildingType)
@@ -173,7 +185,7 @@ public class LocationService
             .Set(x => x.UpdatedAtUtc, now);
 
         var updated = await _locations.FindOneAndUpdateAsync(
-            x => x.Id == location.Id && x.OwnerUsername == username && x.BuildingType == null,
+            x => x.Id == location.Id && x.OwnerUsername == username && (x.BuildingType == null || x.BuildingType == ""),
             update,
             new FindOneAndUpdateOptions<Location>
             {
@@ -185,6 +197,27 @@ public class LocationService
             throw new InvalidOperationException("This location already has a building or construction in progress.");
         }
 
+        if (buildingType == "Barracks")
+        {
+            var spent = await _resources.TrySpendResourcesAsync(username, _barracksGoldCost, _barracksWoodCost, _barracksOreCost);
+            if (!spent)
+            {
+                var rollback = Builders<Location>.Update
+                    .Unset(x => x.BuildingType)
+                    .Unset(x => x.BuildingStatus)
+                    .Unset(x => x.BuildingStartedAtUtc)
+                    .Unset(x => x.BuildingCompletesAtUtc)
+                    .Unset(x => x.BuildingBuiltAtUtc)
+                    .Set(x => x.UpdatedAtUtc, DateTime.UtcNow);
+
+                await _locations.UpdateOneAsync(
+                    x => x.Id == updated.Id && x.BuildingType == "Barracks" && x.BuildingStatus == "Building" && x.BuildingStartedAtUtc == now,
+                    rollback);
+
+                throw new InvalidOperationException($"Not enough resources to build Barracks. Required: {_barracksGoldCost} gold, {_barracksWoodCost} wood, {_barracksOreCost} ore.");
+            }
+        }
+
         return updated;
     }
 
@@ -193,7 +226,7 @@ public class LocationService
         var now = DateTime.UtcNow;
         var readyBuildings = await _locations.Find(x =>
                 x.OwnerUsername == username &&
-                (x.BuildingType == "LogCamp" || x.BuildingType == "Mine") &&
+                (x.BuildingType == "LogCamp" || x.BuildingType == "Mine" || x.BuildingType == "Barracks") &&
                 x.BuildingStatus == "Building" &&
                 x.BuildingCompletesAtUtc <= now)
             .ToListAsync();
@@ -353,6 +386,15 @@ public class LocationService
         return ownedLocations.Any(owned => HexDistance(owned.Q, owned.R, q, r) <= _visibilityDepth);
     }
 
+    public async Task<bool> IsAdjacentToOwnedAsync(string username, int q, int r)
+    {
+        var neighbors = NeighborCoordinates(q, r).ToList();
+        return await _locations.Find(x =>
+                x.OwnerUsername == username &&
+                neighbors.Any(n => n.Q == x.Q && n.R == x.R))
+            .AnyAsync();
+    }
+
     private async Task<Location?> TryCreateHomeAsync(string username, int q, int r)
     {
         var now = DateTime.UtcNow;
@@ -582,7 +624,35 @@ public class LocationService
         {
             "logcamp" or "log camp" => "LogCamp",
             "mine" => "Mine",
+            "barracks" => "Barracks",
             _ => null
         };
     }
+
+    private static string? RequiredTerrainForBuilding(string buildingType) =>
+        buildingType switch
+        {
+            "LogCamp" => "Forest",
+            "Mine" => "Ore",
+            "Barracks" => null,
+            _ => null
+        };
+
+    private static string BuildSecondsSettingKey(string buildingType) =>
+        buildingType switch
+        {
+            "LogCamp" => GameSettingsService.LogCampBuildSeconds,
+            "Mine" => GameSettingsService.MineBuildSeconds,
+            "Barracks" => GameSettingsService.BarracksBuildSeconds,
+            _ => GameSettingsService.LogCampBuildSeconds
+        };
+
+    private int DefaultBuildSeconds(string buildingType) =>
+        buildingType switch
+        {
+            "LogCamp" => _defaultLogCampBuildSeconds,
+            "Mine" => _defaultMineBuildSeconds,
+            "Barracks" => _defaultBarracksBuildSeconds,
+            _ => 60
+        };
 }

microservices/LocationsApi/Services/ResourceService.cs

@@ -82,6 +82,35 @@ public class ResourceService
         return updated is not null;
     }
 
+    public async Task<bool> TrySpendResourcesAsync(string username, int gold, int wood, int ore)
+    {
+        gold = Math.Max(0, gold);
+        wood = Math.Max(0, wood);
+        ore = Math.Max(0, ore);
+        if (gold == 0 && wood == 0 && ore == 0)
+        {
+            return true;
+        }
+
+        await EnsureAsync(username);
+
+        var update = Builders<PlayerResources>.Update
+            .Inc(x => x.Gold, -gold)
+            .Inc(x => x.Wood, -wood)
+            .Inc(x => x.Ore, -ore)
+            .Set(x => x.UpdatedAtUtc, DateTime.UtcNow);
+
+        var updated = await _resources.FindOneAndUpdateAsync(
+            x => x.Username == username && x.Gold >= gold && x.Wood >= wood && x.Ore >= ore,
+            update,
+            new FindOneAndUpdateOptions<PlayerResources>
+            {
+                ReturnDocument = ReturnDocument.After
+            });
+
+        return updated is not null;
+    }
+
     public async Task AddWoodGenerationAsync(string username, int woodPerMinute)
     {
         if (woodPerMinute <= 0)

microservices/LocationsApi/appsettings.json

@@ -31,7 +31,11 @@
     "LogCampWoodPerMinute": 5,
     "LogCampBuildSeconds": 60,
     "MineOrePerMinute": 5,
-    "MineBuildSeconds": 60
+    "MineBuildSeconds": 60,
+    "BarracksBuildSeconds": 60,
+    "BarracksGoldCost": 500,
+    "BarracksWoodCost": 100,
+    "BarracksOreCost": 100
   },
   "AllowedHosts": "*"
 }

microservices/LocationsApi/k8s/configmap.yaml

@@ -19,3 +19,7 @@ data:
   Buildings__LogCampBuildSeconds: "60"
   Buildings__MineOrePerMinute: "5"
   Buildings__MineBuildSeconds: "60"
+  Buildings__BarracksBuildSeconds: "60"
+  Buildings__BarracksGoldCost: "500"
+  Buildings__BarracksWoodCost: "100"
+  Buildings__BarracksOreCost: "100"