/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a3d2f
});

/**** 
* Game Code
****/ 
// Player class: represents a footballer
// --- CONSTANTS ---
var Player = function Player(name, attack, defense, stamina, value) {
	var self = {};
	self.name = name;
	self.attack = attack;
	self.defense = defense;
	self.stamina = stamina;
	self.value = value;
	self.maxStamina = stamina;
	self.inSquad = false; // true if in starting 5
	return self;
};
// Team class: holds a list of players
var Team = function Team(name, players) {
	var self = {};
	self.name = name;
	self.players = players; // array of Player
	return self;
};
var SQUAD_SIZE = 5;
var BENCH_SIZE = 3;
var INITIAL_BUDGET = 100;
var PLAYER_MIN_VALUE = 10;
var PLAYER_MAX_VALUE = 40;
// --- GLOBALS ---
var allPlayers = []; // All players owned by user
var squad = []; // Starting 5
var bench = []; // Bench 3
var transferList = []; // Players available to buy
var budget = INITIAL_BUDGET;
var opponentTeam = null;
var matchInProgress = false;
var matchLog = [];
var matchResult = null;
var selectedPlayerIdx = null; // For swapping
var selectedBenchIdx = null; // For swapping
var infoText = null;
var budgetText = null;
var matchText = null;
var transferText = null;
var transferBtns = [];
var swapBtns = [];
var playBtn = null;
var nextBtn = null;
var sellBtns = [];
var buyBtns = [];
var squadLabels = [];
var benchLabels = [];
var opponentLabels = [];
var guiY = 0;
// --- UTILS ---
function randomInt(min, max) {
	return Math.floor(Math.random() * (max - min + 1)) + min;
}
function randomName() {
	var first = ["Alex", "Ben", "Chris", "Dan", "Eli", "Finn", "Gus", "Hugo", "Ivan", "Jack", "Kai", "Leo", "Max", "Nico", "Oli", "Paul", "Quinn", "Ray", "Sam", "Tom"];
	var last = ["Smith", "Jones", "Brown", "Miller", "Davis", "Wilson", "Moore", "Taylor", "Clark", "Hall", "Young", "King", "Wright", "Scott", "Green", "Baker", "Adams", "Hill", "Ward", "Cruz"];
	return first[randomInt(0, first.length - 1)] + " " + last[randomInt(0, last.length - 1)];
}
function makeRandomPlayer() {
	var atk = randomInt(5, 15);
	var def = randomInt(5, 15);
	var sta = randomInt(10, 20);
	var val = Math.floor((atk + def + sta) / 3) + randomInt(PLAYER_MIN_VALUE, PLAYER_MAX_VALUE);
	return new Player(randomName(), atk, def, sta, val);
}
function makeOpponentTeam() {
	var oppPlayers = [];
	for (var i = 0; i < SQUAD_SIZE; i++) {
		var p = makeRandomPlayer();
		oppPlayers.push(p);
	}
	return new Team("Opponent FC", oppPlayers);
}
function clonePlayer(p) {
	return new Player(p.name, p.attack, p.defense, p.stamina, p.value);
}
// --- INIT DATA ---
function initPlayers() {
	allPlayers = [];
	for (var i = 0; i < SQUAD_SIZE + BENCH_SIZE; i++) {
		allPlayers.push(makeRandomPlayer());
	}
	updateSquadAndBench();
}
function updateSquadAndBench() {
	squad = [];
	bench = [];
	for (var i = 0; i < allPlayers.length; i++) {
		if (i < SQUAD_SIZE) {
			allPlayers[i].inSquad = true;
			squad.push(allPlayers[i]);
		} else {
			allPlayers[i].inSquad = false;
			bench.push(allPlayers[i]);
		}
	}
}
function initTransferList() {
	transferList = [];
	for (var i = 0; i < 3; i++) {
		transferList.push(makeRandomPlayer());
	}
}
// --- UI HELPERS ---
function clearArray(arr) {
	while (arr.length > 0) {
		var el = arr.pop();
		if (el && el.destroy) el.destroy();
	}
}
function makeLabel(txt, x, y, size, color) {
	var t = new Text2(txt, {
		size: size || 60,
		fill: color || "#fff"
	});
	t.x = x;
	t.y = y;
	return t;
}
function updateBudgetText() {
	budgetText.setText("Budget: $" + budget + "M");
}
function showInfo(msg) {
	infoText.setText(msg);
}
function updateSquadLabels() {
	clearArray(squadLabels);
	var startY = guiY + 180;
	for (var i = 0; i < SQUAD_SIZE; i++) {
		var p = squad[i];
		var t = makeLabel(i + 1 + ". " + p.name + "  [A:" + p.attack + " D:" + p.defense + " S:" + p.stamina + "]", 80, startY + i * 90, 54, "#ffe066");
		game.addChild(t);
		squadLabels.push(t);
		// Add swap button
		var btn = makeLabel("↔", 900, t.y, 54, "#fff");
		btn.idx = i;
		btn.interactive = true;
		btn.down = function (x, y, obj) {
			selectedPlayerIdx = obj.idx;
			showInfo("Tap a bench player to swap with " + squad[selectedPlayerIdx].name);
		};
		game.addChild(btn);
		swapBtns.push(btn);
		// Add sell button
		var sellBtn = makeLabel("Sell", 1000, t.y, 44, "#ff7675");
		sellBtn.idx = i;
		sellBtn.interactive = true;
		sellBtn.down = function (idxCopy) {
			return function (x, y, obj) {
				var idx = idxCopy;
				var p = squad[idx];
				if (!p) {
					showInfo("Player not available.");
					return;
				}
				// Find the player in allPlayers by reference, not by index
				var allIdx = allPlayers.indexOf(p);
				if (allIdx !== -1) {
					budget += p.value;
					allPlayers.splice(allIdx, 1);
					updateSquadAndBench();
					updateBudgetText();
					showInfo("Sold " + p.name + " for $" + p.value + "M");
					refreshUI();
				} else {
					showInfo("Player not found in squad.");
				}
			};
		}(i);
		game.addChild(sellBtn);
		sellBtns.push(sellBtn);
	}
}
function updateBenchLabels() {
	clearArray(benchLabels);
	var startY = guiY + 180;
	for (var i = 0; i < BENCH_SIZE; i++) {
		var p = bench[i];
		var t = makeLabel("B" + (i + 1) + ". " + p.name + "  [A:" + p.attack + " D:" + p.defense + " S:" + p.stamina + "]", 1200, startY + i * 90, 54, "#b2bec3");
		game.addChild(t);
		benchLabels.push(t);
		// Add swap handler
		t.idx = i;
		t.interactive = true;
		t.down = function (x, y, obj) {
			if (selectedPlayerIdx !== null) {
				// Swap squad[selectedPlayerIdx] with bench[obj.idx]
				var sIdx = selectedPlayerIdx;
				var bIdx = obj.idx;
				var temp = squad[sIdx];
				squad[sIdx] = bench[bIdx];
				bench[bIdx] = temp;
				// Update allPlayers order
				for (var j = 0; j < SQUAD_SIZE; j++) allPlayers[j] = squad[j];
				for (var j = 0; j < BENCH_SIZE; j++) allPlayers[SQUAD_SIZE + j] = bench[j];
				selectedPlayerIdx = null;
				showInfo("Swapped players.");
				refreshUI();
			}
		};
	}
}
function updateTransferLabels() {
	clearArray(transferBtns);
	clearArray(buyBtns);
	var startY = guiY + 700;
	if (transferText) transferText.destroy();
	transferText = makeLabel("Transfer Market", 80, startY - 60, 60, "#00b894");
	game.addChild(transferText);
	for (var i = 0; i < transferList.length; i++) {
		var p = transferList[i];
		var t = makeLabel(p.name + " [A:" + p.attack + " D:" + p.defense + " S:" + p.stamina + "] $" + p.value + "M", 80, startY + i * 80, 50, "#fff");
		game.addChild(t);
		transferBtns.push(t);
		// Buy button
		var buyBtn = makeLabel("Buy", 800, t.y, 44, "#00b894");
		buyBtn.idx = i;
		buyBtn.interactive = true;
		buyBtn.down = function (idxCopy) {
			return function (x, y, obj) {
				var idx = idxCopy;
				var p = transferList[idx];
				if (!p) {
					showInfo("Player not available.");
					return;
				}
				if (budget < p.value) {
					showInfo("Not enough budget!");
					return;
				}
				if (allPlayers.length >= SQUAD_SIZE + BENCH_SIZE) {
					showInfo("Squad full! Sell a player first.");
					return;
				}
				budget -= p.value;
				allPlayers.push(clonePlayer(p));
				updateSquadAndBench();
				updateBudgetText();
				showInfo("Bought " + p.name + " for $" + p.value + "M");
				// Remove from transfer list, add new
				transferList.splice(idx, 1, makeRandomPlayer());
				refreshUI();
			};
		}(i);
		game.addChild(buyBtn);
		buyBtns.push(buyBtn);
	}
}
function updateOpponentLabels() {
	clearArray(opponentLabels);
	var startY = guiY + 1200;
	var t = makeLabel("Next Opponent: " + opponentTeam.name, 80, startY, 60, "#fab1a0");
	game.addChild(t);
	opponentLabels.push(t);
	for (var i = 0; i < SQUAD_SIZE; i++) {
		var p = opponentTeam.players[i];
		var pt = makeLabel(i + 1 + ". " + p.name + " [A:" + p.attack + " D:" + p.defense + " S:" + p.stamina + "]", 80, startY + 60 + i * 60, 44, "#fff");
		game.addChild(pt);
		opponentLabels.push(pt);
	}
}
function clearMatchText() {
	if (matchText) {
		matchText.destroy();
		matchText = null;
	}
}
function showMatchLog() {
	clearMatchText();
	var log = matchLog.join("\n");
	matchText = new Text2(log, {
		size: 48,
		fill: "#fff",
		wordWrap: true,
		wordWrapWidth: 1800
	});
	matchText.x = 80;
	matchText.y = guiY + 1800;
	game.addChild(matchText);
}
function clearAllUI() {
	clearArray(squadLabels);
	clearArray(benchLabels);
	clearArray(transferBtns);
	clearArray(buyBtns);
	clearArray(swapBtns);
	clearArray(sellBtns);
	clearArray(opponentLabels);
	if (transferText) transferText.destroy();
	transferText = null;
	clearMatchText();
	if (playBtn) playBtn.destroy();
	playBtn = null;
	if (nextBtn) nextBtn.destroy();
	nextBtn = null;
}
// --- GAME LOGIC ---
function simulateMatch() {
	matchLog = [];
	matchResult = null;
	matchInProgress = true;
	// Calculate team stats
	var userAtk = 0,
		userDef = 0,
		userSta = 0;
	for (var i = 0; i < SQUAD_SIZE; i++) {
		userAtk += squad[i].attack;
		userDef += squad[i].defense;
		userSta += squad[i].stamina;
	}
	var oppAtk = 0,
		oppDef = 0,
		oppSta = 0;
	for (var i = 0; i < SQUAD_SIZE; i++) {
		oppAtk += opponentTeam.players[i].attack;
		oppDef += opponentTeam.players[i].defense;
		oppSta += opponentTeam.players[i].stamina;
	}
	// Simulate 5 "turns" (one per player)
	var userGoals = 0,
		oppGoals = 0;
	for (var turn = 0; turn < 5; turn++) {
		// User attack
		var atkP = squad[turn];
		var defP = opponentTeam.players[turn];
		var atkChance = atkP.attack + randomInt(0, atkP.stamina);
		var defChance = defP.defense + randomInt(0, defP.stamina);
		if (atkChance > defChance + 3) {
			userGoals++;
			matchLog.push("Minute " + (turn * 18 + 5) + ": " + atkP.name + " scores!");
		} else if (defChance > atkChance + 5) {
			matchLog.push("Minute " + (turn * 18 + 8) + ": " + defP.name + " makes a key tackle.");
		}
		// Opponent attack
		var oAtkP = opponentTeam.players[turn];
		var oDefP = squad[turn];
		var oAtkChance = oAtkP.attack + randomInt(0, oAtkP.stamina);
		var oDefChance = oDefP.defense + randomInt(0, oDefP.stamina);
		if (oAtkChance > oDefChance + 3) {
			oppGoals++;
			matchLog.push("Minute " + (turn * 18 + 12) + ": " + oAtkP.name + " scores!");
		} else if (oDefChance > oAtkChance + 5) {
			matchLog.push("Minute " + (turn * 18 + 15) + ": " + oDefP.name + " blocks a shot.");
		}
	}
	matchLog.push("Full Time: You " + userGoals + " - " + oppGoals + " " + opponentTeam.name);
	if (userGoals > oppGoals) {
		matchResult = "win";
		matchLog.push("You win! +$20M");
		budget += 20;
	} else if (userGoals < oppGoals) {
		matchResult = "lose";
		matchLog.push("You lose.");
	} else {
		matchResult = "draw";
		matchLog.push("Draw. +$5M");
		budget += 5;
	}
	updateBudgetText();
	showMatchLog();
	matchInProgress = false;
}
function refreshUI() {
	clearAllUI();
	updateSquadLabels();
	updateBenchLabels();
	updateTransferLabels();
	updateOpponentLabels();
	updateBudgetText();
	showInfo("Pick lineup, buy/sell, then Play Match!");
	// Play match button
	playBtn = makeLabel("Play Match", 1400, guiY + 180, 70, "#00cec9");
	playBtn.interactive = true;
	playBtn.down = function (x, y, obj) {
		if (matchInProgress) return;
		simulateMatch();
		playBtn.destroy();
		playBtn = null;
		// Next match button
		nextBtn = makeLabel("Next Match", 1400, guiY + 300, 60, "#fdcb6e");
		nextBtn.interactive = true;
		nextBtn.down = function (x, y, obj) {
			// New opponent, restore stamina a bit
			for (var i = 0; i < allPlayers.length; i++) {
				allPlayers[i].stamina = Math.min(allPlayers[i].maxStamina, allPlayers[i].stamina + randomInt(1, 3));
			}
			opponentTeam = makeOpponentTeam();
			clearMatchText();
			nextBtn.destroy();
			nextBtn = null;
			refreshUI();
		};
		game.addChild(nextBtn);
	};
	game.addChild(playBtn);
}
// --- INIT UI ---
function initUI() {
	guiY = 0;
	// Title
	var title = new Text2("Mini Football Manager", {
		size: 90,
		fill: 0x00CEC9
	});
	title.x = 80;
	title.y = guiY + 40;
	game.addChild(title);
	// Budget
	budgetText = new Text2("Budget: $" + budget + "M", {
		size: 60,
		fill: "#fff"
	});
	budgetText.x = 80;
	budgetText.y = guiY + 120;
	game.addChild(budgetText);
	// Info
	infoText = new Text2("", {
		size: 54,
		fill: 0xFDCB6E
	});
	infoText.x = 600;
	infoText.y = guiY + 120;
	game.addChild(infoText);
	refreshUI();
}
// --- GAME START ---
function newGame() {
	budget = INITIAL_BUDGET;
	initPlayers();
	initTransferList();
	opponentTeam = makeOpponentTeam();
	matchInProgress = false;
	matchLog = [];
	matchResult = null;
	selectedPlayerIdx = null;
	selectedBenchIdx = null;
	initUI();
}
newGame();
// --- END ---

===================================================================
--- original.js
+++ change.js
@@ -162,18 +162,30 @@
 		// Add sell button
 		var sellBtn = makeLabel("Sell", 1000, t.y, 44, "#ff7675");
 		sellBtn.idx = i;
 		sellBtn.interactive = true;
-		sellBtn.down = function (x, y, obj) {
-			var idx = obj.idx;
-			var p = squad[idx];
-			budget += p.value;
-			allPlayers.splice(idx, 1);
-			updateSquadAndBench();
-			updateBudgetText();
-			showInfo("Sold " + p.name + " for $" + p.value + "M");
-			refreshUI();
-		};
+		sellBtn.down = function (idxCopy) {
+			return function (x, y, obj) {
+				var idx = idxCopy;
+				var p = squad[idx];
+				if (!p) {
+					showInfo("Player not available.");
+					return;
+				}
+				// Find the player in allPlayers by reference, not by index
+				var allIdx = allPlayers.indexOf(p);
+				if (allIdx !== -1) {
+					budget += p.value;
+					allPlayers.splice(allIdx, 1);
+					updateSquadAndBench();
+					updateBudgetText();
+					showInfo("Sold " + p.name + " for $" + p.value + "M");
+					refreshUI();
+				} else {
+					showInfo("Player not found in squad.");
+				}
+			};
+		}(i);
 		game.addChild(sellBtn);
 		sellBtns.push(sellBtn);
 	}
 }