data/cards/baraga.tres

@@ -0,0 +1,19 @@
+[gd_resource type="Resource" script_class="MonsterCard" load_steps=4 format=3 uid="uid://cs7q8i7bvohmj"]
+
+[ext_resource type="Script" path="res://tcg/card/monster_card.gd" id="1_v65bb"]
+
+[sub_resource type="Gradient" id="Gradient_mubps"]
+offsets = PackedFloat32Array(0, 0.510204, 1)
+colors = PackedColorArray(0, 0, 0, 1, 0.159184, 0.159184, 0.159184, 1, 1, 1, 1, 1)
+
+[sub_resource type="GradientTexture1D" id="GradientTexture1D_784dy"]
+gradient = SubResource("Gradient_mubps")
+
+[resource]
+script = ExtResource("1_v65bb")
+rock = 100
+paper = 100
+scissors = 100
+energy_cost = 3
+base_health = 170
+art = SubResource("GradientTexture1D_784dy")

data/cards/taiman.tres

@@ -0,0 +1,11 @@
+[gd_resource type="Resource" script_class="MonsterCard" load_steps=2 format=3 uid="uid://di76avwc0gn8e"]
+
+[ext_resource type="Script" path="res://tcg/card/monster_card.gd" id="1_j4601"]
+
+[resource]
+script = ExtResource("1_j4601")
+rock = 50
+paper = 50
+scissors = 50
+energy_cost = 1
+base_health = 120

demo_game.gd

@@ -0,0 +1,61 @@
+extends Control
+
+@export var player_1_deck: Array[Card]
+@export var player_2_deck: Array[Card]
+@onready var match_manager = $MatchManager
+@onready var own_side = $Own
+@onready var opponent_side = $Opponent
+@onready var start_game_btn = $StartGameButton
+
+var player_action_queue: Dictionary
+var player_1_action: Action:
+	get:
+		return player_action_queue.get(MatchManager.PLAYER_1_ID)
+	set(value):
+		player_action_queue[MatchManager.PLAYER_1_ID] = value
+var player_2_action: Action:
+	get:
+		return player_action_queue.get(MatchManager.PLAYER_2_ID)
+	set(value):
+		player_action_queue[MatchManager.PLAYER_2_ID] = value
+
+func _ready() -> void:
+	match_manager.init({
+		MatchManager.PLAYER_1_ID: player_1_deck,
+		MatchManager.PLAYER_2_ID: player_2_deck
+	})
+	own_side.attach(match_manager)
+	opponent_side.attach(match_manager)
+	match_manager.state_transitioned.connect(_on_match_manager_state_transitioned)
+
+var transition_history: Array[PhaseTransition] = []
+func _on_match_manager_state_transitioned(transition: PhaseTransition):
+	start_game_btn.visible = match_manager.phase == Match.Phase.PREGAME
+	transition_history.append(transition)
+
+func _on_start_game_button_button_up() -> void:
+	match_manager.resolve({})
+
+func _on_own_play_card(card: Card) -> void:
+	player_1_action = ActionPlayCard.new(card)
+	if player_2_action:
+		match_manager.resolve(player_action_queue)
+		player_action_queue.clear()
+
+func _on_opponent_play_card(card: Card) -> void:
+	player_2_action = ActionPlayCard.new(card)
+	if player_1_action:
+		match_manager.resolve(player_action_queue)
+		player_action_queue.clear()
+
+func _on_own_rps_move(move: String) -> void:
+	player_1_action = ActionRPSMove.new(move)
+	if player_2_action:
+		match_manager.resolve(player_action_queue)
+		player_action_queue.clear()
+
+func _on_opponent_rps_move(move: String) -> void:
+	player_2_action = ActionRPSMove.new(move)
+	if player_1_action:
+		match_manager.resolve(player_action_queue)
+		player_action_queue.clear()

demo_game.tscn

@@ -0,0 +1,169 @@
+[gd_scene load_steps=8 format=3 uid="uid://bgc0u117jqyr1"]
+
+[ext_resource type="Script" path="res://demo_game.gd" id="1_jn16u"]
+[ext_resource type="Script" path="res://player_side.gd" id="2_w4tnt"]
+[ext_resource type="Script" path="res://tcg/card/card.gd" id="2_xuft0"]
+[ext_resource type="PackedScene" uid="uid://cikstg43mudkn" path="res://tcg/match/match_manager.tscn" id="3_3yhrl"]
+[ext_resource type="Resource" uid="uid://cs7q8i7bvohmj" path="res://data/cards/baraga.tres" id="3_we1tk"]
+[ext_resource type="Resource" uid="uid://4eod3m0vc5a8" path="res://data/cards/potion.tres" id="4_kkhfk"]
+[ext_resource type="Resource" uid="uid://di76avwc0gn8e" path="res://data/cards/taiman.tres" id="5_3cm5x"]
+
+[node name="DemoGame" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_jn16u")
+player_1_deck = Array[ExtResource("2_xuft0")]([ExtResource("3_we1tk"), ExtResource("4_kkhfk"), ExtResource("4_kkhfk")])
+player_2_deck = Array[ExtResource("2_xuft0")]([ExtResource("5_3cm5x"), ExtResource("4_kkhfk"), ExtResource("4_kkhfk")])
+
+[node name="Own" type="VBoxContainer" parent="." node_paths=PackedStringArray("deck", "monster_name_label", "monster_health_label", "incoming_damage_label", "energy_label")]
+layout_mode = 1
+anchors_preset = 12
+anchor_top = 1.0
+anchor_right = 1.0
+anchor_bottom = 1.0
+offset_top = -131.0
+grow_horizontal = 2
+grow_vertical = 0
+alignment = 2
+script = ExtResource("2_w4tnt")
+deck = NodePath("Hand")
+monster_name_label = NodePath("Monster/VBoxContainer/NameLabel")
+monster_health_label = NodePath("Monster/VBoxContainer/HealthLabel")
+incoming_damage_label = NodePath("Monster/VBoxContainer/IncomingDamageLabel")
+energy_label = NodePath("HBoxContainer/EnergyLabel")
+
+[node name="Monster" type="HBoxContainer" parent="Own"]
+custom_minimum_size = Vector2(0, 128)
+layout_mode = 2
+size_flags_horizontal = 4
+alignment = 1
+
+[node name="VBoxContainer" type="VBoxContainer" parent="Own/Monster"]
+layout_mode = 2
+
+[node name="NameLabel" type="Label" parent="Own/Monster/VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+text = "Name:"
+
+[node name="HealthLabel" type="Label" parent="Own/Monster/VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+text = "Health:"
+
+[node name="IncomingDamageLabel" type="Label" parent="Own/Monster/VBoxContainer"]
+custom_minimum_size = Vector2(128, 0)
+layout_mode = 2
+size_flags_vertical = 3
+text = "Incoming Damage:"
+vertical_alignment = 2
+
+[node name="HBoxContainer" type="HBoxContainer" parent="Own"]
+layout_mode = 2
+
+[node name="EnergyLabel" type="Label" parent="Own/HBoxContainer"]
+layout_mode = 2
+text = "Energy:"
+
+[node name="Hand" type="HBoxContainer" parent="Own"]
+layout_mode = 2
+alignment = 1
+
+[node name="Button" type="Button" parent="Own/Hand"]
+layout_mode = 2
+text = "CARD_1"
+
+[node name="Button2" type="Button" parent="Own/Hand"]
+layout_mode = 2
+text = "CARD_2"
+
+[node name="Button3" type="Button" parent="Own/Hand"]
+layout_mode = 2
+text = "CARD_3"
+
+[node name="Opponent" type="VBoxContainer" parent="." node_paths=PackedStringArray("deck", "monster_name_label", "monster_health_label", "incoming_damage_label", "energy_label")]
+layout_mode = 1
+anchors_preset = 10
+anchor_right = 1.0
+offset_bottom = 190.0
+grow_horizontal = 2
+script = ExtResource("2_w4tnt")
+player_id = 1
+deck = NodePath("Hand")
+monster_name_label = NodePath("Monster/VBoxContainer/NameLabel")
+monster_health_label = NodePath("Monster/VBoxContainer/HealthLabel")
+incoming_damage_label = NodePath("Monster/VBoxContainer/IncomingDamageLabel")
+energy_label = NodePath("EnergyLabel")
+
+[node name="Hand" type="HBoxContainer" parent="Opponent"]
+layout_mode = 2
+alignment = 1
+
+[node name="Button" type="Button" parent="Opponent/Hand"]
+layout_mode = 2
+text = "CARD_1"
+
+[node name="Button2" type="Button" parent="Opponent/Hand"]
+layout_mode = 2
+text = "CARD_2"
+
+[node name="Button3" type="Button" parent="Opponent/Hand"]
+layout_mode = 2
+text = "CARD_3"
+
+[node name="EnergyLabel" type="Label" parent="Opponent"]
+layout_mode = 2
+text = "Energy:"
+
+[node name="Monster" type="HBoxContainer" parent="Opponent"]
+custom_minimum_size = Vector2(0, 128)
+layout_mode = 2
+size_flags_horizontal = 4
+alignment = 1
+
+[node name="VBoxContainer" type="VBoxContainer" parent="Opponent/Monster"]
+layout_mode = 2
+
+[node name="NameLabel" type="Label" parent="Opponent/Monster/VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+text = "Name: "
+
+[node name="HealthLabel" type="Label" parent="Opponent/Monster/VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+text = "Health:"
+
+[node name="IncomingDamageLabel" type="Label" parent="Opponent/Monster/VBoxContainer"]
+custom_minimum_size = Vector2(128, 0)
+layout_mode = 2
+size_flags_vertical = 3
+text = "Incoming Damage:"
+vertical_alignment = 2
+
+[node name="StartGameButton" type="Button" parent="."]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -132.0
+offset_top = -59.5
+offset_right = 132.0
+offset_bottom = 59.5
+grow_horizontal = 2
+grow_vertical = 2
+text = "Start Game"
+
+[node name="MatchManager" parent="." instance=ExtResource("3_3yhrl")]
+
+[connection signal="play_card" from="Own" to="." method="_on_own_play_card"]
+[connection signal="rps_move" from="Own" to="." method="_on_own_rps_move"]
+[connection signal="play_card" from="Opponent" to="." method="_on_opponent_play_card"]
+[connection signal="rps_move" from="Opponent" to="." method="_on_opponent_rps_move"]
+[connection signal="button_up" from="StartGameButton" to="." method="_on_start_game_button_button_up"]

player_side.gd

@@ -0,0 +1,55 @@
+extends Control
+
+signal play_card(card: Card)
+signal rps_move(move: String)
+@export var player_id: int
+@export var deck: Container
+@export var monster_name_label: Label
+@export var monster_health_label: Label
+@export var incoming_damage_label: Label
+@export var energy_label: Label
+
+var match_manager: MatchManager
+
+func attach(match_manager: MatchManager):
+	self.match_manager = match_manager
+	match_manager.state_transitioned.connect(_on_update)
+
+func _on_update(transition):
+	for child in deck.get_children():
+		child.queue_free()
+	var player: MatchPlayer = match_manager.players.get(player_id) as MatchPlayer
+	if not player:
+		return
+	energy_label.text = "Energy: " + str(player.energy)
+	var monster = player.monster
+	if monster:
+		monster_name_label.text = "Name: " + monster.card.id
+		monster_health_label.text = "Health: " + str(monster.health)
+		incoming_damage_label.text = "Incoming Damage: " + str(monster.damage_incoming)
+	if match_manager.phase in [Match.Phase.SUMMON, Match.Phase.SUPPORT_1, Match.Phase.SUPPORT_2]:
+		for card: Card in player.hand:
+			if match_manager.phase == Match.Phase.SUMMON and card is not MonsterCard:
+				continue
+			if (match_manager.phase == Match.Phase.SUPPORT_1 or match_manager.phase == Match.Phase.SUPPORT_2) and card is not SupportCard:
+				continue
+			if match_manager.phase == Match.Phase.SUPPORT_1 and card.type == "red":
+				continue
+			var btn = Button.new()
+			btn.text = card.id
+			btn.button_up.connect(func (): play_card.emit(card))
+			btn.disabled = (
+				card is MonsterCard and match_manager.phase != Match.Phase.SUMMON
+			) or (
+				card is SupportCard and match_manager.phase != Match.Phase.SUPPORT_1 and match_manager.phase != Match.Phase.SUPPORT_2
+			) or (
+				card is SupportCard and card.type == "red" and match_manager.phase != Match.Phase.SUPPORT_2
+			)
+			deck.add_child(btn)
+	if match_manager.phase == Match.Phase.RPS:
+		for move in ["rock", "paper", "scissors"]:
+			var btn = Button.new()
+			btn.text = move
+			btn.button_up.connect(func (): rps_move.emit(move))
+			deck.add_child(btn)
+	

tcg/card/card.gd

@@ -0,0 +1,6 @@
+extends Resource
+class_name Card
+
+var id: String:
+	get:
+		return resource_path.rsplit(".", true, 1)[0].rsplit("/", true, 1)[1]

tcg/card/monster_card.gd

@@ -0,0 +1,8 @@
+extends Card
+class_name MonsterCard
+
+@export var rock: int = 0
+@export var paper: int = 0
+@export var scissors: int = 0
+@export var energy_cost: int = 1
+@export var base_health: int = 100

tcg/card/support_card.gd

@@ -0,0 +1,6 @@
+extends Card
+class_name SupportCard
+
+@export_enum("red", "green") var type = "green"
+@export var priority: int = 0
+@export var effects: Array[SupportCardEffectInstance] = [null]

tcg/card/support_card_effect.gd

@@ -0,0 +1,6 @@
+extends Resource
+class_name SupportCardEffect
+
+var id: String:
+	get:
+		return resource_path.rsplit(".", true, 1)[0].rsplit("/", true, 1)[1]

tcg/card/support_card_effect_instance.gd

@@ -0,0 +1,5 @@
+extends Resource
+class_name SupportCardEffectInstance
+
+@export var magnitude: int
+@export var effect: SupportCardEffect

tcg/match/action/action.gd

@@ -0,0 +1,2 @@
+extends Resource
+class_name Action

tcg/match/action/action_play_card.gd

@@ -0,0 +1,7 @@
+extends Action
+class_name ActionPlayCard
+
+@export var card: Card
+
+func _init(card: Card) -> void:
+	self.card = card

tcg/match/action/action_rps_move.gd

@@ -0,0 +1,7 @@
+extends Action
+class_name ActionRPSMove
+
+var move: String # rock | paper | scissors
+
+func _init(move: String) -> void:
+	self.move = move

tcg/match/event/event.gd

@@ -0,0 +1,2 @@
+extends Resource
+class_name Event

tcg/match/event/event_damage_dealt.gd

@@ -0,0 +1,5 @@
+extends Event
+class_name EventDamageDealt
+
+var target_player_id: int
+var amount: int

tcg/match/event/event_draw_card.gd

@@ -0,0 +1,9 @@
+extends Event
+class_name EventCardDrawn
+
+var player_id: int
+var card: Card
+
+func _init(player_id: int, card: Card) -> void:
+	self.player_id = player_id
+	self.card = card

tcg/match/event/event_monster_died.gd

@@ -0,0 +1,4 @@
+extends Event
+class_name EventMonsterDied
+
+var player_id: int

tcg/match/event/event_monster_summoned.gd

@@ -0,0 +1,7 @@
+extends Event
+class_name EventMonsterSummoned
+
+var monster: MonsterCard
+
+func _init(monster: MonsterCard) -> void:
+	self.monster = monster

tcg/match/event/event_support_effect_applied.gd

@@ -0,0 +1,9 @@
+extends Event
+class_name EventSupportEffectApplied
+
+var player_id: int
+var effect_instance: SupportCardEffectInstance
+
+func _init(player_id: int, effect_instance: SupportCardEffectInstance) -> void:
+	self.player_id = player_id
+	self.effect_instance = effect_instance

tcg/match/match.gd

@@ -0,0 +1,10 @@
+extends Object
+class_name Match
+
+enum Phase {
+	PREGAME = 0,
+	SUMMON  = 1,
+	SUPPORT_1 = 2,
+	RPS = 3,
+	SUPPORT_2 = 4
+}

tcg/match/match_manager.gd

@@ -0,0 +1,112 @@
+extends Node
+class_name MatchManager
+
+signal match_begun
+signal state_transitioned(transition: PhaseTransition)
+
+const PLAYER_1_ID: int = 0
+const PLAYER_2_ID: int = 1
+
+var rps_wins = {
+	"rock": "scissors",
+	"scissors": "paper",
+	"paper": "rock"
+}
+
+var players: Dictionary
+var player_1: MatchPlayer:
+	get:
+		return players[PLAYER_1_ID] as MatchPlayer
+var player_2: MatchPlayer:
+	get:
+		return players[PLAYER_2_ID] as MatchPlayer
+var phase: Match.Phase = Match.Phase.PREGAME
+
+func _ready() -> void:
+	cleanup()
+
+func init(decks: Dictionary):
+	cleanup()
+	for player_id in [PLAYER_1_ID, PLAYER_2_ID]:
+		var deck_shuffled = decks[player_id].duplicate() as Array[Card]
+		deck_shuffled.shuffle()
+		players[player_id] = MatchPlayer.new(player_id, deck_shuffled)
+
+func cleanup():
+	for player_id in [PLAYER_1_ID, PLAYER_2_ID]:
+		var existing = players.get(player_id)
+		if existing:
+			existing.free()
+	phase = Match.Phase.PREGAME
+
+func resolve(action_by_player_id: Dictionary) -> PhaseTransition:
+	var initial_phase = phase
+	var events = [] as Array[Event]
+	var player_1_action = action_by_player_id.get(PLAYER_1_ID) as Action
+	var player_2_action = action_by_player_id.get(PLAYER_2_ID) as Action
+	match phase:
+		Match.Phase.PREGAME:
+			var CARDS_TO_DRAW: int = 3
+			for player: MatchPlayer in [player_1, player_2]:
+				var n_cards_to_draw = min(player.deck.size(), CARDS_TO_DRAW)
+				var drawn_cards = range(n_cards_to_draw).map(func(_i): return player.deck.pop_back()) as Array[Card]
+				for card in drawn_cards:
+					player.hand.push_back(card)
+				var drawn_card_events = drawn_cards.map(func(card): return EventCardDrawn.new(player.id, card))
+				events.append_array(
+					drawn_card_events
+				)
+			phase = Match.Phase.SUMMON
+		Match.Phase.SUMMON:
+			for player_id in action_by_player_id.keys():
+				var action = action_by_player_id[player_id]
+				if action is ActionPlayCard:
+					var card = action.card
+					if card is MonsterCard:
+						players[player_id].monster = _monster_from_card(card)
+						players[player_id].hand = players[player_id].hand.filter(func(card_in_hand): return card.id != card_in_hand.id)
+						events.append(EventMonsterSummoned.new(card))
+			if players.values().all(func(player: MatchPlayer): return player.monster):
+				phase = Match.Phase.SUPPORT_1
+		Match.Phase.SUPPORT_1:
+			var support_cards = []
+			if player_1_action is ActionPlayCard and player_1_action.card is SupportCard:
+				support_cards.append({
+					"player": player_1,
+					"card": player_1_action.card
+				})
+			if player_2_action is ActionPlayCard and player_2_action.card is SupportCard:
+				support_cards.append({
+					"player": player_2,
+					"card": player_2_action.card
+				})
+			support_cards.sort_custom(func(a, b): return a.card.priority < b.card.priority)
+			for played_card in support_cards:
+				var player: MatchPlayer = played_card.player
+				var card: SupportCard = played_card.card
+				events.append_array(_resolve_support_card_effects(player, card))
+			phase = Match.Phase.RPS
+		Match.Phase.RPS:
+			var player_1_win = rps_wins[player_1_action.move] == player_2_action.move
+			var player_2_win = rps_wins[player_2_action.move] == player_1_action.move
+			var tie = not player_1_win and not player_2_win
+			
+		_:
+			pass
+	var transition = PhaseTransition.new(events, initial_phase, phase)
+	state_transitioned.emit(transition)
+	return transition
+
+func _monster_from_card(card: MonsterCard) -> MatchMonster:
+	return MatchMonster.new(card, card.base_health, 0)
+
+func _resolve_support_card_effects(player: MatchPlayer, card: SupportCard) -> Array[Event]:
+	var events: Array[Event]
+	for effect_instance in card.effects:
+		var effect = effect_instance.effect
+		var magnitude = effect_instance.magnitude
+		match effect.id:
+			"heal":
+				player.monster.health += magnitude
+				events.append(EventSupportEffectApplied.new(player.id, effect_instance))
+	return events

tcg/match/match_manager.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://cikstg43mudkn"]
+
+[ext_resource type="Script" path="res://tcg/match/match_manager.gd" id="1_tkhvw"]
+
+[node name="MatchManager" type="Node"]
+script = ExtResource("1_tkhvw")

tcg/match/match_monster.gd

@@ -0,0 +1,11 @@
+extends RefCounted
+class_name MatchMonster
+
+var card: MonsterCard
+var health: int
+var damage_incoming: int
+
+func _init(card: MonsterCard, health: int, damage_incoming: int) -> void:
+	self.card = card
+	self.health = health
+	self.damage_incoming = damage_incoming

tcg/match/match_player.gd

@@ -0,0 +1,12 @@
+extends Object
+class_name MatchPlayer
+
+var id: int
+var hand: Array[Card] = []
+var deck: Array[Card]
+var energy: int = 5
+var monster: MatchMonster = null
+
+func _init(id: int, deck: Array[Card]) -> void:
+	self.id = id
+	self.deck = deck

tcg/match/match_player.tscn

@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://bwkfogonbhq6r"]
+
+[ext_resource type="Script" path="res://tcg/match/match_player.gd" id="1_pdj3n"]
+
+[node name="MatchPlayer" type="Node"]
+script = ExtResource("1_pdj3n")

tcg/match/monster.tscn

@@ -0,0 +1,17 @@
+[gd_scene load_steps=2 format=3 uid="uid://d3dm1bnooaxmu"]
+
+[sub_resource type="GDScript" id="GDScript_dtwp4"]
+script/source = "extends Node
+class_name Monster
+
+var health: int
+var card: MonsterCard
+var damage_incoming: int = 0
+
+func from_card(card: MonsterCard):
+	self.card = card
+	health = card.base_health
+"
+
+[node name="Monster" type="Node"]
+script = SubResource("GDScript_dtwp4")

tcg/match/phase_transition.gd

@@ -0,0 +1,11 @@
+extends RefCounted
+class_name PhaseTransition
+
+var events: Array[Event]
+var from: Match.Phase
+var to: Match.Phase
+
+func _init(events: Array[Event], from: Match.Phase, to: Match.Phase) -> void:
+	self.events = events
+	self.from = from
+	self.to = to