elements-autochess/scripts/ui/Main.gd

extends Node3D

## Spielszene: 3D-Arena plus Bedienoberfläche.
## Alles wird im Code aus primitiven Meshes und Controls gebaut.

const TOP_H := 46.0
const LEFT_W := 290.0    ## links: Elemente, Einheit, Rundenlog
const RIGHT_W := 210.0   ## rechts: Spielerliste
const BOTTOM_H := 138.0
const TEXT_W := 244.0
const BG := Color(0.09, 0.10, 0.13)
const PANEL_BG := Color(0.14, 0.15, 0.19)
const SLOT_BG := Color(0.20, 0.21, 0.26)
const CAM_FOV := 44.0
const CAM_PITCH := 52.0   ## Grad über der Waagerechten

var game := Game.new()
var board: BoardView3D
var camera: Camera3D
var ui_layer: CanvasLayer
var ui_root: Control
var hud: HudOverlay
var combat_speed := 1.0

# Kopfzeile
var lbl_round: Label
var lbl_gold: Label
var lbl_hp: Label
var lbl_slots: Label
var lbl_streak: Label
var lbl_phase: Label
var btn_ready: Button
var btn_speed: Button

# Panels
var players_box: VBoxContainer
var traits_box: VBoxContainer
var info_box: VBoxContainer
var log_box: VBoxContainer
var shop_row: HBoxContainer
var lbl_fodder: Label
var btn_reroll: Button
var lbl_hint: Label

# Auswahl und Ziehen
var sel_slot := {}
var drag_src := {}
var drag_avatar: Avatar = null
var drag_moved := false

# Element-Auswahl
var picker: PopupPanel
var picker_grid: GridContainer
var picker_title: Label
var picker_sub: Label
var picker_cb: Callable

var overlay: Control


func _ready() -> void:
	_build_world()
	ui_layer = CanvasLayer.new()
	add_child(ui_layer)
	hud = HudOverlay.new()
	hud.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	hud.board = board
	ui_layer.add_child(hud)
	ui_root = Control.new()
	ui_root.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	ui_root.mouse_filter = Control.MOUSE_FILTER_IGNORE
	ui_layer.add_child(ui_root)

	_build_top()
	_build_left()
	_build_right()
	_build_bottom()
	_build_picker()

	game.start()
	board.game = game
	_refresh()
	set_process(true)


func _process(delta: float) -> void:
	if game.phase == Game.Phase.COMBAT:
		var before := game.phase
		game.update_combat(delta * combat_speed)
		_refresh_header()
		if game.phase != before:
			_refresh()


func _unhandled_input(event: InputEvent) -> void:
	if event is InputEventMouseMotion:
		_on_mouse_move(event.position)
		return
	if event is InputEventMouseButton:
		if event.button_index == MOUSE_BUTTON_LEFT:
			if event.pressed:
				_begin_drag(event.position)
			else:
				_end_drag(event.position)
			return
		if event.button_index == MOUSE_BUTTON_RIGHT and event.pressed:
			_on_right_click(event.position)
			return
		return
	if not (event is InputEventKey and event.pressed and not event.echo):
		return
	match event.keycode:
		KEY_D:
			_on_reroll()
		KEY_SPACE, KEY_F:
			_on_ready()
		KEY_ESCAPE:
			_cancel_drag()
			sel_slot = {}
			_refresh()


func _on_mouse_move(pos: Vector2) -> void:
	var slot := _pick_slot(pos)
	board.hover_slot = slot
	if drag_avatar != null:
		board.drag_world = _drag_point(pos, slot)
		drag_moved = true


## Hebt einen Avatar an, wenn unter dem Zeiger einer liegt.
func _begin_drag(pos: Vector2) -> void:
	if game.phase != Game.Phase.PLANNING:
		return
	var slot := _pick_slot(pos)
	var a: Avatar = _avatar_at(slot)
	if a == null:
		sel_slot = {}
		_refresh()
		return
	drag_src = slot
	drag_avatar = a
	drag_moved = false
	board.drag_active = true
	board.drag_avatar_id = a.id
	board.drag_world = _drag_point(pos, slot)
	# Während des Ziehens zeigt das Info-Panel den Avatar in der Hand.
	sel_slot = slot
	_refresh()


func _end_drag(pos: Vector2) -> void:
	if drag_avatar == null:
		return
	var dst := _pick_slot(pos)
	var src := drag_src
	_cancel_drag()
	if dst.is_empty() or BoardView3D._same_slot(src, dst):
		# Kein Weg zurückgelegt: das war eine Auswahl.
		sel_slot = src
		_refresh()
		return
	if dst["kind"] == "board" and not board.is_own_half(BoardView3D.from_board(dst["hex"])):
		_refresh()
		return
	if not game.human.move_slot(src, dst, game.round_no):
		if dst["kind"] == "board":
			_hint("Kaderplätze voll (%d)." % game.human.team_slots(game.round_no))
	else:
		sel_slot = dst
	_refresh()


func _cancel_drag() -> void:
	drag_avatar = null
	drag_src = {}
	board.drag_active = false
	board.drag_avatar_id = -1


func _on_right_click(pos: Vector2) -> void:
	if game.phase != Game.Phase.PLANNING:
		return
	_cancel_drag()
	var slot := _pick_slot(pos)
	if slot.is_empty():
		return
	if slot["kind"] == "bench":
		game.human.sell_bench(slot["index"], game.pool)
	else:
		game.human.unplace(slot["hex"])
	sel_slot = {}
	_refresh()


func _avatar_at(slot: Dictionary):
	if slot.is_empty():
		return null
	if slot["kind"] == "bench":
		return game.human.bench[slot["index"]]
	return game.human.board.get(slot["hex"])


# --- Aufbau ----------------------------------------------------------------

func _add_panel(pos: Vector2, sz: Vector2) -> VBoxContainer:
	var p := UiKit.panel(PANEL_BG)
	p.position = pos
	p.size = sz
	ui_root.add_child(p)
	var v := VBoxContainer.new()
	v.add_theme_constant_override("separation", 4)
	p.add_child(v)
	return v


func _build_top() -> void:
	var bar := ColorRect.new()
	bar.color = PANEL_BG
	bar.position = Vector2.ZERO
	bar.size = Vector2(1600, TOP_H)
	bar.mouse_filter = Control.MOUSE_FILTER_IGNORE
	ui_root.add_child(bar)

	var h := HBoxContainer.new()
	h.position = Vector2(14, 9)
	h.size = Vector2(1570, 30)
	h.add_theme_constant_override("separation", 22)
	ui_root.add_child(h)

	lbl_round = UiKit.label("Runde 1", 18)
	lbl_phase = UiKit.label("Planung", 16, Color(0.7, 0.85, 1.0))
	lbl_hp = UiKit.label("Leben 100", 16, Color(0.5, 0.9, 0.55))
	lbl_gold = UiKit.label("Gold 4", 16, Color(1.0, 0.85, 0.35))
	lbl_slots = UiKit.label("Kader 0/3", 16)
	lbl_streak = UiKit.label("Serie 0", 16, Color(0.85, 0.7, 1.0))
	for l in [lbl_round, lbl_phase, lbl_hp, lbl_gold, lbl_slots, lbl_streak]:
		h.add_child(l)

	var spacer := Control.new()
	spacer.custom_minimum_size = Vector2(360, 0)
	h.add_child(spacer)

	btn_speed = UiKit.button("Tempo 1x", Color(0.25, 0.28, 0.36))
	btn_speed.custom_minimum_size = Vector2(96, 28)
	btn_speed.pressed.connect(_on_speed)
	h.add_child(btn_speed)

	btn_ready = UiKit.button("Kampf starten  [Leer]", Color(0.24, 0.52, 0.34))
	btn_ready.custom_minimum_size = Vector2(190, 28)
	btn_ready.pressed.connect(_on_ready)
	h.add_child(btn_ready)


## Linke Spalte: Elemente, gewählte Einheit und Rundenlog, scrollbar.
func _build_left() -> void:
	var w := LEFT_W - 16.0
	var h := 900.0 - TOP_H - BOTTOM_H - 20.0
	var p := UiKit.panel(PANEL_BG)
	p.position = Vector2(8, TOP_H + 8)
	p.size = Vector2(w, h)
	p.clip_contents = true
	ui_root.add_child(p)
	var sc := ScrollContainer.new()
	sc.horizontal_scroll_mode = ScrollContainer.SCROLL_MODE_DISABLED
	p.add_child(sc)
	var col := VBoxContainer.new()
	col.add_theme_constant_override("separation", 10)
	col.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	sc.add_child(col)
	traits_box = VBoxContainer.new()
	info_box = VBoxContainer.new()
	log_box = VBoxContainer.new()
	for b in [traits_box, info_box, log_box]:
		b.add_theme_constant_override("separation", 3)
		b.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		col.add_child(b)
		col.add_child(HSeparator.new())


func _build_world() -> void:
	var we := WorldEnvironment.new()
	var env := Environment.new()
	env.background_mode = Environment.BG_COLOR
	env.background_color = BG
	env.ambient_light_source = Environment.AMBIENT_SOURCE_COLOR
	env.ambient_light_color = Color(0.44, 0.48, 0.62)
	env.ambient_light_energy = 0.9
	we.environment = env
	add_child(we)

	var sun := DirectionalLight3D.new()
	sun.rotation_degrees = Vector3(-58.0, -35.0, 0.0)
	sun.light_energy = 1.15
	sun.shadow_enabled = true
	add_child(sun)

	var fill := DirectionalLight3D.new()
	fill.rotation_degrees = Vector3(-22.0, 140.0, 0.0)
	fill.light_energy = 0.4
	fill.light_color = Color(0.72, 0.80, 1.0)
	add_child(fill)

	board = BoardView3D.new()
	add_child(board)

	camera = Camera3D.new()
	camera.fov = CAM_FOV
	camera.look_at_from_position(Vector3(0.0, 16.0, 13.0), Vector3.ZERO, Vector3.UP)
	add_child(camera)
	board.camera = camera
	get_viewport().size_changed.connect(_fit_camera)
	_fit_camera()


## Legt die Kamera so, dass das Spielfeld genau in die freie Bildmitte passt.
## Links, rechts und unten liegen Bedienpanels darüber.
func _fit_camera() -> void:
	var vp := Vector2(get_viewport().get_visible_rect().size)
	var target := Rect2(LEFT_W + 16.0, TOP_H + 16.0,
		vp.x - LEFT_W - RIGHT_W - 32.0, vp.y - TOP_H - BOTTOM_H - 32.0)
	if target.size.x <= 0.0 or target.size.y <= 0.0:
		return
	var pts := board.corner_points()
	var pitch := deg_to_rad(CAM_PITCH)
	var dir := Vector3(0.0, sin(pitch), cos(pitch))
	var dist := 20.0
	var center := Vector3.ZERO
	for i in 8:
		camera.look_at_from_position(center + dir * dist, center, Vector3.UP)
		var r := _project_rect(pts)
		if r.size.x <= 0.0 or r.size.y <= 0.0:
			return
		dist *= maxf(r.size.x / target.size.x, r.size.y / target.size.y)
		camera.look_at_from_position(center + dir * dist, center, Vector3.UP)
		r = _project_rect(pts)
		var err := r.get_center() - target.get_center()
		var o := camera.unproject_position(center)
		var kx := camera.unproject_position(center + Vector3(1.0, 0.0, 0.0)).x - o.x
		var kz := camera.unproject_position(center + Vector3(0.0, 0.0, 1.0)).y - o.y
		if absf(kx) < 0.001 or absf(kz) < 0.001:
			break
		center += Vector3(err.x / kx, 0.0, err.y / kz)
		if err.length() < 1.0 and absf(1.0 - maxf(r.size.x / target.size.x,
				r.size.y / target.size.y)) < 0.01:
			break
	camera.look_at_from_position(center + dir * dist, center, Vector3.UP)


func _project_rect(points: Array) -> Rect2:
	var lo := Vector2(INF, INF)
	var hi := Vector2(-INF, -INF)
	for p in points:
		if camera.is_position_behind(p):
			return Rect2()
		var q := camera.unproject_position(p)
		lo = Vector2(minf(lo.x, q.x), minf(lo.y, q.y))
		hi = Vector2(maxf(hi.x, q.x), maxf(hi.y, q.y))
	return Rect2(lo, hi - lo)


## Punkt auf der Feldebene unter einer Bildschirmposition, oder null.
func _ground_point(screen_pos: Vector2):
	if camera == null:
		return null
	var from := camera.project_ray_origin(screen_pos)
	var dir := camera.project_ray_normal(screen_pos)
	if absf(dir.y) < 0.0001:
		return null
	var t := (BoardView3D.TILE_H * 0.5 - from.y) / dir.y
	if t < 0.0:
		return null
	return board.to_local(from + dir * t)


## Position des gezogenen Avatars: auf Feldhöhe, damit er nicht schwebt.
func _drag_point(screen_pos: Vector2, fallback: Dictionary) -> Vector3:
	var hit = _ground_point(screen_pos)
	if hit == null:
		return board.slot_world(fallback)
	return Vector3(hit.x, 0.0, hit.z)


## Feld oder Bankplatz unter einer Bildschirmposition.
func _pick_slot(screen_pos: Vector2) -> Dictionary:
	var hit = _ground_point(screen_pos)
	if hit == null:
		return {}
	return board.slot_at_world(hit)


## Rechte Spalte: die acht Spieler mit Leben und Serie.
func _build_right() -> void:
	players_box = _add_panel(Vector2(1600.0 - RIGHT_W + 8.0, TOP_H + 8),
		Vector2(RIGHT_W - 16, 900 - TOP_H - BOTTOM_H - 20))
	players_box.add_child(UiKit.label("Spieler", 16, Color(0.75, 0.8, 0.95)))


func _build_bottom() -> void:
	var y := 900.0 - BOTTOM_H
	var p := UiKit.panel(PANEL_BG)
	p.position = Vector2(8, y)
	p.size = Vector2(1584, BOTTOM_H - 10)
	ui_root.add_child(p)
	var v := VBoxContainer.new()
	v.add_theme_constant_override("separation", 6)
	p.add_child(v)

	var head := HBoxContainer.new()
	head.add_theme_constant_override("separation", 16)
	v.add_child(head)
	head.add_child(UiKit.label("Shop", 13, Color(0.7, 0.72, 0.8)))
	btn_reroll = UiKit.button("Neu würfeln  %d Gold  [D]" % Data.REROLL_COST, Color(0.30, 0.32, 0.44))
	btn_reroll.custom_minimum_size = Vector2(200, 26)
	btn_reroll.pressed.connect(_on_reroll)
	head.add_child(btn_reroll)
	lbl_fodder = UiKit.label("", 13, Color(0.7, 0.72, 0.8))
	head.add_child(lbl_fodder)
	lbl_hint = UiKit.label("", 13, Color(0.95, 0.85, 0.45))
	head.add_child(lbl_hint)
	var spacer := Control.new()
	spacer.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	head.add_child(spacer)
	head.add_child(UiKit.label(
		"Avatare zwischen Bank und Feld ziehen  ·  Rechtsklick: verkaufen bzw. zurück",
		13, Color(0.6, 0.62, 0.7)))

	shop_row = HBoxContainer.new()
	shop_row.add_theme_constant_override("separation", 8)
	v.add_child(shop_row)


func _build_picker() -> void:
	picker = PopupPanel.new()
	picker.add_theme_stylebox_override("panel", UiKit.flat(Color(0.16, 0.17, 0.22)))
	var v := VBoxContainer.new()
	v.add_theme_constant_override("separation", 8)
	picker.add_child(v)
	picker_title = UiKit.label("Element wählen", 16)
	v.add_child(picker_title)
	picker_sub = UiKit.label("", 13, Color(0.75, 0.8, 0.95))
	v.add_child(picker_sub)
	picker_grid = GridContainer.new()
	picker_grid.columns = 3
	picker_grid.add_theme_constant_override("h_separation", 6)
	picker_grid.add_theme_constant_override("v_separation", 6)
	v.add_child(picker_grid)
	ui_root.add_child(picker)


## Element-Auswahl. Mit `previews` steht neben jedem Knopf, was sich ändert.
func _open_picker(title: String, options: Array, cb: Callable, previews: Array = [],
		subtitle: String = "") -> void:
	picker_title.text = title
	picker_sub.text = subtitle
	picker_sub.visible = subtitle != ""
	for c in picker_grid.get_children():
		c.queue_free()
	picker_cb = cb
	var counts := game.human.trait_counts()
	var with_preview := not previews.is_empty()
	picker_grid.columns = 2 if with_preview else 3
	for i in options.size():
		var e: int = options[i]
		var col: Color = Data.ELEMENT_COLORS[e]
		var b := UiKit.button("%s\n(%d im Team)" % [Data.ELEMENT_NAMES[e], counts.get(e, 0)],
			col, UiKit.ink(col))
		b.custom_minimum_size = Vector2(120, 52 if with_preview else 46)
		b.pressed.connect(func():
			picker.hide()
			picker_cb.call(e))
		picker_grid.add_child(b)
		if with_preview:
			var l := UiKit.label(previews[i], 12, Color(0.85, 0.88, 0.95))
			l.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
			picker_grid.add_child(l)
	picker.reset_size()
	picker.popup_centered()


# --- Aktionen --------------------------------------------------------------

func _on_ready() -> void:
	if game.phase == Game.Phase.PLANNING:
		_cancel_drag()
		sel_slot = {}
		game.start_combat()
		_refresh()
	elif game.phase == Game.Phase.COMBAT:
		game.skip_combat()
		_refresh()


func _on_speed() -> void:
	combat_speed = 1.0 if combat_speed >= 4.0 else combat_speed * 2.0
	btn_speed.text = "Tempo %dx" % int(combat_speed)


func _on_reroll() -> void:
	if game.phase != Game.Phase.PLANNING:
		return
	game.human.reroll(game.pool, game.rand)
	_refresh()


func _on_buy(index: int) -> void:
	if game.phase != Game.Phase.PLANNING:
		return
	var p := game.human
	if index < 0 or index >= p.shop.size():
		return
	var entry: ShopEntry = p.shop[index]
	if entry.sold:
		return
	if p.free_bench_slot() < 0:
		_hint("Bank ist voll. Erst etwas verkaufen.")
		return
	if p.gold < entry.price():
		return
	if entry.element >= 0:
		if not p.buy(index, game.pool, entry.element):
			_hint("Kauf nicht möglich (Vorrat leer).")
		_refresh()
		return
	# Neutraler Avatar: Spezialisierung schon beim Kauf wählen.
	var free: Array[int] = []
	for e in Data.ELEMENT_COUNT:
		if game.pool.element_left[e] > 0:
			free.append(e)
	if free.is_empty():
		_hint("Kein Element mehr im Vorrat.")
		return
	_open_picker("Spezialisierung wählen", free, func(e):
		if not game.human.buy(index, game.pool, e):
			_hint("Kauf nicht möglich (Vorrat leer).")
		_refresh())


func _on_upgrade() -> void:
	var p := game.human
	var hex := selected_board_hex()
	if hex.x < 0 or not p.can_upgrade(hex):
		return
	var a: Avatar = p.board[hex]
	var options := p.available_new_elements(hex)
	var previews := []
	for e in options:
		previews.append("+ " + _element_effect(e) + " (halbe Stärke)")
	_open_picker("Zweite/dritte Spezialisierung", options, func(e):
		game.human.upgrade(hex, e, game.pool)
		_refresh(), previews,
		"Fähigkeit wird zu: " + _star_effect(a.role, a.star + 1))


func _star_effect(role: int, star: int) -> String:
	match role:
		Data.Role.TANK:
			if star == 2:
				return "Schild und spottet 3 Gegner"
			return "Schild, Spott und 25% Reflexion"
		Data.Role.DPS:
			if star == 2:
				return "Ziel plus Splash auf Nachbarn"
			return "Ziel plus Fläche im Radius 2"
		_:
			if star == 2:
				return "heilt 3 Verbündete"
			return "heilt alle und schildet sie"


func _element_effect(element: int) -> String:
	match element:
		Data.Element.FEUER: return "Brand"
		Data.Element.WASSER: return "Mana und stärkere Heilung"
		Data.Element.WIND: return "Tempo-Schub"
		Data.Element.BLITZ: return "Kettenblitz"
		Data.Element.ERDE: return "Betäubung"
		_: return "Verlangsamung"


## Gewähltes Board-Feld, oder (-1,-1) wenn nichts oder ein Bankplatz gewählt ist.
func selected_board_hex() -> Vector2i:
	if sel_slot.is_empty() or sel_slot["kind"] != "board":
		return Vector2i(-1, -1)
	return sel_slot["hex"]


func _hint(text: String) -> void:
	lbl_hint.text = text
	get_tree().create_timer(2.5).timeout.connect(func():
		if is_instance_valid(lbl_hint) and lbl_hint.text == text:
			lbl_hint.text = "")


# --- Anzeige ---------------------------------------------------------------

func _refresh() -> void:
	_refresh_header()
	_refresh_players()
	_refresh_traits()
	_refresh_info()
	_refresh_log()
	_refresh_fodder()
	_refresh_shop()
	board.selected_slot = sel_slot
	if game.phase == Game.Phase.GAMEOVER:
		_show_gameover()


func _refresh_header() -> void:
	var p := game.human
	lbl_round.text = "Runde %d" % game.round_no
	lbl_hp.text = "Leben %d" % p.hp
	var interest := Data.interest(p.gold)
	lbl_gold.text = "Gold %d (+%d Zins)" % [p.gold, interest] if interest > 0 else "Gold %d" % p.gold
	lbl_slots.text = "Kader %d/%d" % [p.board.size(), p.team_slots(game.round_no)]
	var s := p.streak
	lbl_streak.text = "Serie %s%d (+%d Gold)" % ["+" if s > 0 else "", s, Data.streak_gold(s)]
	match game.phase:
		Game.Phase.PLANNING:
			lbl_phase.text = "Planung"
			btn_ready.text = "Kampf starten  [Leer]"
			btn_ready.disabled = false
		Game.Phase.COMBAT:
			var opp := game.human_opponent()
			lbl_phase.text = "Kampf gegen %s" % (opp.pname if opp else "?")
			btn_ready.text = "Kampf überspringen"
			btn_ready.disabled = false
		_:
			lbl_phase.text = "Spiel vorbei"
			btn_ready.disabled = true


## Label für das rechte Panel: bricht um und bleibt in der Panelbreite.
func _wrapped(text: String, size: int, col: Color) -> Label:
	var l := UiKit.label(text, size, col)
	l.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	l.custom_minimum_size = Vector2(TEXT_W, 0)
	l.size_flags_horizontal = Control.SIZE_FILL
	return l


func _clear(box: Node, keep: int = 0) -> void:
	var kids := box.get_children()
	for i in range(keep, kids.size()):
		box.remove_child(kids[i])
		kids[i].queue_free()


func _refresh_players() -> void:
	_clear(players_box, 1)
	for p in game.ranking():
		var row := VBoxContainer.new()
		row.add_theme_constant_override("separation", 1)
		var top := HBoxContainer.new()
		var col := Color(0.9, 0.9, 0.95) if p.alive else Color(0.5, 0.5, 0.55)
		if p == game.human:
			col = Color(0.6, 0.9, 1.0)
		var nm := UiKit.label(p.pname, 14, col)
		nm.custom_minimum_size = Vector2(88, 0)
		top.add_child(nm)
		top.add_child(UiKit.label("%d" % p.hp, 14, col))
		if p.streak != 0:
			top.add_child(UiKit.label("  Serie %s%d" % ["+" if p.streak > 0 else "", p.streak], 12,
				Color(0.85, 0.7, 1.0)))
		row.add_child(top)
		var bar := ColorRect.new()
		bar.color = Color(0.12, 0.13, 0.16)
		bar.custom_minimum_size = Vector2(RIGHT_W - 32, 6)
		var fill := ColorRect.new()
		fill.color = Color(0.35, 0.8, 0.45) if p.alive else Color(0.4, 0.4, 0.45)
		fill.size = Vector2((RIGHT_W - 32) * (float(p.hp) / float(Data.START_HP)), 6)
		fill.position = Vector2.ZERO
		bar.add_child(fill)
		row.add_child(bar)
		players_box.add_child(row)
	var opp := game.human_opponent()
	if opp != null and game.phase == Game.Phase.COMBAT:
		players_box.add_child(UiKit.label("\nGegner: " + opp.pname, 13, Color(1.0, 0.6, 0.6)))


func _refresh_traits() -> void:
	_clear(traits_box)
	traits_box.add_child(UiKit.label("Elemente im Team", 15, Color(0.75, 0.8, 0.95)))
	var counts := game.human.trait_counts()
	var any := false
	for e in Data.ELEMENT_COUNT:
		var c: int = counts.get(e, 0)
		if c == 0:
			continue
		any = true
		var tier := Data.trait_tier(e, c)
		var col: Color = Data.ELEMENT_COLORS[e]
		var row := HBoxContainer.new()
		var dot := ColorRect.new()
		dot.color = col if tier > 0 else col.darkened(0.55)
		dot.custom_minimum_size = Vector2(12, 12)
		row.add_child(dot)
		var txt := "  %s %d" % [Data.ELEMENT_NAMES[e], c]
		if tier > 0:
			txt += " - " + Data.ELEMENT_TRAITS[e]["desc"][tier - 1]
		else:
			txt += " (ab 2 aktiv)"
		var el := UiKit.label(txt, 13, Color(0.9, 0.9, 0.95) if tier > 0 else Color(0.55, 0.55, 0.6))
		el.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
		el.custom_minimum_size = Vector2(TEXT_W - 20.0, 0)
		row.add_child(el)
		traits_box.add_child(row)
	if not any:
		traits_box.add_child(_wrapped("Noch nichts aufgestellt.", 13, Color(0.55, 0.55, 0.6)))
	traits_box.add_child(UiKit.label("\nKombinationen", 15, Color(0.75, 0.8, 0.95)))
	var active := game.human.active_combos()
	var keys := []
	for c in active:
		keys.append(c["key"])
	for c in Data.COMBO_TRAITS:
		var on: bool = keys.has(c["key"])
		var t := "%s  (%s+%s): %s" % [c["name"], Data.ELEMENT_NAMES[c["a"]],
			Data.ELEMENT_NAMES[c["b"]], c["desc"]]
		traits_box.add_child(_wrapped(t, 12, Color(0.6, 0.95, 0.7) if on else Color(0.45, 0.45, 0.5)))


func _refresh_info() -> void:
	_clear(info_box)
	info_box.add_child(UiKit.label("Einheit", 15, Color(0.75, 0.8, 0.95)))
	var p := game.human
	var a: Avatar = _selected_avatar()
	if a == null:
		info_box.add_child(_wrapped("Einheit auf dem Feld oder der Bank anklicken.", 13,
			Color(0.55, 0.55, 0.6)))
		return
	var s := a.base_stats()
	info_box.add_child(_wrapped("%s  %d-Star" % [a.display_name(), a.star], 14, a.color()))
	info_box.add_child(_wrapped("Leben %d   Angriff %d   Rüstung %d%%\nTempo %.2f   Reichweite %d"
		% [int(s["hp"]), int(s["atk"]), int(s["armor"] * 100.0), s["aspd"], s["range"]], 12,
		Color(0.9, 0.9, 0.95)))
	info_box.add_child(_wrapped(a.ability_text(), 12, Color(0.8, 0.85, 1.0)))

	var hex := selected_board_hex()
	if hex.x < 0:
		info_box.add_child(_wrapped("Zum Aufwerten aufs Feld ziehen.", 12,
			Color(0.85, 0.85, 0.9)))
		return
	var cost := a.upgrade_cost()
	if cost.is_empty():
		info_box.add_child(_wrapped("Maximale Stufe.", 12, Color(1.0, 0.85, 0.35)))
		return
	var missing := p.upgrade_missing(hex)
	var need := []
	for e in cost:
		need.append("%dx %s" % [cost[e], Data.ELEMENT_NAMES[e]])
	info_box.add_child(_wrapped("Aufwerten braucht: " + ", ".join(need), 12,
		Color(0.85, 0.85, 0.9)))
	if missing.is_empty():
		var b := UiKit.button("Aufwerten", Color(0.28, 0.55, 0.36))
		b.custom_minimum_size = Vector2(140, 26)
		b.pressed.connect(_on_upgrade)
		info_box.add_child(b)
	else:
		var miss := []
		for e in missing:
			miss.append("%dx %s" % [missing[e], Data.ELEMENT_NAMES[e]])
		info_box.add_child(_wrapped("Es fehlt: " + ", ".join(miss), 12, Color(0.95, 0.6, 0.5)))


func _selected_avatar():
	return _avatar_at(sel_slot)


func _refresh_log() -> void:
	_clear(log_box)
	log_box.add_child(UiKit.label("Letzte Runde", 15, Color(0.75, 0.8, 0.95)))
	if game.last_round_log.is_empty():
		log_box.add_child(UiKit.label("-", 12, Color(0.55, 0.55, 0.6)))
	for line in game.last_round_log:
		log_box.add_child(_wrapped(line, 12, Color(0.8, 0.8, 0.86)))


func _refresh_fodder() -> void:
	var fodder := game.human.fodder_counts()
	var parts := []
	for e in fodder:
		parts.append("%dx %s" % [fodder[e], Data.ELEMENT_NAMES[e]])
	lbl_fodder.text = "Futter auf der Bank: " + (", ".join(parts) if parts else "-")


func _refresh_shop() -> void:
	_clear(shop_row)
	var p := game.human
	for i in p.shop.size():
		var e: ShopEntry = p.shop[i]
		var col := e.color()
		var txt := "verkauft"
		var b: Button
		if e.sold:
			b = UiKit.button(txt, SLOT_BG.darkened(0.3))
			b.disabled = true
		else:
			var note: String = "Element wählen" if e.element < 0 \
				else "noch %d im Vorrat" % game.pool.element_left[e.element]
			b = UiKit.button("%s\n%d Gold\n%s" % [e.label(), e.price(), note], col, UiKit.ink(col))
			b.disabled = p.gold < e.price() or game.phase != Game.Phase.PLANNING
			b.pressed.connect(_on_buy.bind(i))
		b.custom_minimum_size = Vector2(196, 74)
		shop_row.add_child(b)
	var mine := []
	for el in game.human.shop_elements(game.pool):
		mine.append("%s %d" % [Data.ELEMENT_NAMES[el], game.pool.element_left[el]])
	shop_row.add_child(UiKit.label("   Dein Shop zeigt Neutral\n   und deine Elemente:\n   %s"
		% [", ".join(mine) if mine else "noch keine aufgestellt"], 12,
		Color(0.7, 0.72, 0.8)))


func _show_gameover() -> void:
	if overlay != null:
		return
	overlay = ColorRect.new()
	overlay.color = Color(0, 0, 0, 0.72)
	overlay.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	ui_root.add_child(overlay)
	var v := VBoxContainer.new()
	v.position = Vector2(620, 320)
	v.add_theme_constant_override("separation", 10)
	overlay.add_child(v)
	var alive := game.alive_players()
	var win: String = alive[0].pname if not alive.is_empty() else "-"
	v.add_child(UiKit.label("Spiel vorbei", 32))
	v.add_child(UiKit.label("Sieger: %s" % win, 20, Color(1.0, 0.85, 0.35)))
	var place := game.human.placement if game.human.placement > 0 else 1
	v.add_child(UiKit.label("Dein Platz: %d von 8" % place, 18,
		Color(0.6, 0.95, 0.7) if place <= 4 else Color(0.95, 0.6, 0.6)))
	var b := UiKit.button("Neues Spiel", Color(0.28, 0.5, 0.36))
	b.custom_minimum_size = Vector2(180, 36)
	b.pressed.connect(func():
		overlay.queue_free()
		overlay = null
		game = Game.new()
		game.start()
		board.game = game
		_cancel_drag()
		sel_slot = {}
		_refresh())
	v.add_child(b)