class_name CreatureView
extends Control
## Zeichnet ein Wesen auf dem Feld. Bleibt über Zustandsänderungen bestehen (für Animationen).

signal clicked(view: CreatureView)
signal hover(card: Cards.Card, entered: bool)

var creature: Game.Creature
var border = null
var width := 2
var flash := false   # kurz rot: wurde gerade angegriffen
var slot: Vector2    # Zielposition im Raster
var busy := false    # wird gerade animiert (kein Neupositionieren)
var matchup := 0     # Elementvorteil des gewählten Angreifers gegen dieses Wesen (+1/-1)
var secret := false  # verdecktes fremdes Wesen: nur der Rücken ist zu sehen


func _init(cr: Game.Creature, sz: Vector2, b = null, w: int = 2) -> void:
    creature = cr
    border = b
    width = w
    custom_minimum_size = sz
    size = sz
    pivot_offset = sz / 2
    set_process(Style.rarity_animated(rarity()))  # bewegter Glanz
    mouse_filter = Control.MOUSE_FILTER_STOP
    mouse_entered.connect(func(): hover.emit(creature.card, true))
    mouse_exited.connect(func(): hover.emit(creature.card, false))


func _process(_delta: float) -> void:
    queue_redraw()


func _gui_input(event: InputEvent) -> void:
    if event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
        accept_event()
        clicked.emit(self)


func rarity() -> String:
    var owner = creature.owner()
    return Cards.RARITIES[int(owner.looks.get(creature.card.id, 0)) if owner != null else 0]


func _draw() -> void:
    var rect := Rect2(Vector2.ZERO, size)
    if secret:
        _draw_back(rect)
        return
    var small := size.x < 100
    var rar := rarity()
    var seed := hash(creature.card.id) + creature.uid
    if rar != "gewöhnlich":
        Style.glow(self, rect, Style.rarity_color(rar, seed), 6, 6)
    Style.fill_elements(self, rect, creature.card.elements, 6)
    Style.glyph(self, creature.card, Vector2(size.x / 2, size.y * 0.5), size.x * 0.75, 0.3)
    Style.rarity_sheen(self, rect, rar, seed)
    var bcol: Color = border if border != null else Style.rarity_frame(rar, seed)
    if flash:
        bcol = Style.RED
    Style.border(self, rect, bcol, 4 if flash else width, 6)
    var fs := 11 if small else 13
    var name_w: float = size.x - (30 if matchup != 0 else 6)  # Platz für den Vorteilskreis oben rechts
    var nf := Style.fit_size(creature.card.title(), true, fs, name_w)
    draw_rect(Rect2(2, 2, size.x - 4, Style.fs(fs) + 8), Color(0.05, 0.05, 0.08, 0.7))
    Style.text(self, Style.fit(creature.card.title(), true, Style.fs(nf), name_w), nf, Style.TEXT, Vector2(3 + name_w / 2, 6), "midtop", true)
    # Schlüsselwörter als Symbole (Schild nur, solange er steht)
    var icon := 7.0 if small else 9.0
    var kws: Array[String] = []
    for k in Cards.KEYWORDS:
        if k in creature.card.keywords and (k != "Schild" or creature.shield):
            kws.append(k)
    if creature.shield and not ("Schild" in kws):
        kws.append("Schild")
    var x := size.x / 2 - (kws.size() * (icon * 2 + 6) - 6) / 2.0
    var y := Style.fs(fs) + 14 + icon
    for k in kws:
        Style.keyword_icon(self, k, Vector2(x + icon, y), icon)
        x += icon * 2 + 6
    _draw_stats(15 if small else 17, 10 if small else 12, 12.0 if small else 14.0)
    Style.rarity_gem(self, rar, Vector2(size.x / 2, size.y - 9), 5, seed)
    if creature.hidden:
        draw_rect(rect, Color(0.05, 0.05, 0.1, 0.55))
        Style.text_outlined(self, tr("verdeckt"), 12, Style.TEXT, Vector2(size.x / 2, size.y / 2), "center", 3)
    Style.rarity_sparkle(self, rect, rar, seed)


## Verdecktes fremdes Wesen: ein Kartenrücken.
func _draw_back(rect: Rect2) -> void:
    var bcol: Color = border if border != null else Style.GOLD
    if flash:
        bcol = Style.RED
    draw_style_box(Style.box(Color("3c285a"), 6, bcol, 4 if flash else maxi(width, 2)), rect)
    Style.border(self, rect.grow(-10), Color("5a3c82"), 2, 6)
    Style.text(self, "?", 36, Style.GOLD, size / 2, "center", true)
    if matchup != 0:
        pass  # unbekanntes Element: kein Vorteil anzeigen


## Angriff (grün oder rot, wenn die Elementregel ihn hebt oder senkt), Leben, Elementvorteil.
func _draw_stats(f: int, f_small: int, r: float) -> void:
    var extra := creature.power() - creature.attack
    var atk_col := Style.GREEN if extra > 0 else (Style.RED if extra < 0 else Style.AMBER)
    Style.stat_circle(self, Vector2(r - 1, size.y - r + 1), r, str(creature.power()), atk_col, f)
    if extra != 0:
        Style.text_outlined(self, ("+%d" % extra) if extra > 0 else ("−%d" % -extra), f_small, Style.GREEN if extra > 0 else Style.RED, Vector2(r * 2 + 3, size.y - r + 1), "midleft", 3)
    var hp_col := Style.CRIMSON if creature.health < creature.max_health else Color("b84a4a")
    Style.stat_circle(self, Vector2(size.x - r + 1, size.y - r + 1), r, str(creature.health), hp_col, f)
    if matchup != 0:
        var c := Vector2(size.x - 12, 12)
        draw_circle(c, 11, Color("14141c"))
        Style.text(self, ("+%d" % matchup) if matchup > 0 else ("−%d" % -matchup), f_small + 1,
            Style.GREEN if matchup > 0 else Style.RED, c, "center", true)