/**** 
* Classes
****/ 
// No plugins needed for this game
// Button class: a simple rectangular button with centered text
var BlueButton = Container.expand(function () {
	var self = Container.call(this);
	// Button dimensions
	var btnWidth = 600;
	var btnHeight = 200;
	// Create button background (rounded rectangle using ellipse for corners)
	var btnBg = self.attachAsset('buttonBg', {
		width: btnWidth,
		height: btnHeight,
		color: 0x1e90ff,
		// Dodger blue
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Button label
	var btnLabel = new Text2('PRESS ME', {
		size: 90,
		fill: 0xFFFFFF
	});
	btnLabel.anchor.set(0.5, 0.5);
	btnLabel.x = 0;
	btnLabel.y = 0;
	self.addChild(btnLabel);
	// Optional: visual feedback on press
	self.down = function (x, y, obj) {
		btnBg.alpha = 0.7;
	};
	self.up = function (x, y, obj) {
		btnBg.alpha = 1;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xffffff // Start with white background
});

/**** 
* Game Code
****/ 
// Set initial background color (white)
game.setBackgroundColor(0xffffff);
// --- Windows Version Data ---
var windowsVersions = [{
	name: "Windows 1.0",
	color: 0x0000aa,
	face: "",
	text: "Unexpected system error.\n\nPlease restart your computer.\n\nPress any key to continue _",
	textSize: 60
},
// --- Windows 2.0 ---
{
	name: "Windows 2.0",
	color: 0x0000aa,
	face: "",
	text: "System Error\n\nAn error has occurred in Windows 2.0.\n\nPlease restart your computer by pressing CTRL+ALT+DEL.\n\nPress any key to continue _",
	textSize: 60
}, {
	name: "Windows 95",
	color: 0x0000aa,
	face: "",
	text: "A fatal exception 0E has occurred at 0028:C0011E36 in VXD VMM(01) +\n00010E36. The current application will be terminated.\n\n*  Press any key to terminate the current application.\n*  Press CTRL+ALT+DEL again to restart your computer. You will\n   lose any unsaved information in all applications.\n\nPress any key to continue _",
	textSize: 60
}, {
	name: "Windows 98",
	color: 0x0000aa,
	face: "",
	text: "A fatal exception 0E has occurred at 0028:C183:00000000 in VXD VMM(01) +\n00000000. The current application will be terminated.\n\n*  Press any key to terminate the current application.\n*  Press CTRL+ALT+DEL again to restart your computer. You will\n   lose any unsaved information in all applications.\n\nPress any key to continue _",
	textSize: 60
}, {
	name: "Windows NT",
	color: 0x000080,
	face: "",
	text: "*** STOP: 0x0000001E (0xC0000005,0x00000000,0x00000000,0x00000000)\nKMODE_EXCEPTION_NOT_HANDLED\n\nIf this is the first time you've seen this Stop error screen,\nrestart your computer. If this screen appears again, follow\nthese steps:\n\nCheck to make sure any new hardware or software is properly installed.\nIf this is a new installation, ask your hardware or software manufacturer\nfor any Windows NT updates you might need.\n\nIf problems continue, disable or remove any newly installed hardware\nor software. Disable BIOS memory options such as caching or shadowing.\nIf you need to use Safe Mode to remove or disable components, restart\nyour computer, press F8 to select Advanced Startup Options, and then\nselect Safe Mode.",
	textSize: 48
}, {
	name: "Windows XP",
	color: 0x00008b,
	face: "",
	text: "A problem has been detected and Windows has been shut down to prevent damage\nto your computer.\n\nIf this is the first time you've seen this Stop error screen,\nrestart your computer. If this screen appears again, follow\nthese steps:\n\nCheck to make sure any new hardware or software is properly installed.\nIf this is a new installation, ask your hardware or software manufacturer\nfor any Windows updates you might need.\n\nIf problems continue, disable or remove any newly installed hardware\nor software. Disable BIOS memory options such as caching or shadowing.\nIf you need to use Safe Mode to remove or disable components, restart\nyour computer, press F8 to select Advanced Startup Options, and then\nselect Safe Mode.\n\nTechnical information:\n*** STOP: 0x0000007B (0xF78D2524,0xC0000034,0x00000000,0x00000000)",
	textSize: 48
}, {
	name: "Windows 7",
	color: 0x0000aa,
	face: "",
	text: "A problem has been detected and Windows has been shut down to prevent damage\nto your computer.\n\nIf this is the first time you've seen this Stop error screen,\nrestart your computer. If this screen appears again, follow\nthese steps:\n\nCheck to make sure any new hardware or software is properly installed.\nIf this is a new installation, ask your hardware or software manufacturer\nfor any Windows updates you might need.\n\nIf problems continue, disable or remove any newly installed hardware\nor software. Disable BIOS memory options such as caching or shadowing.\nIf you need to use Safe Mode to remove or disable components, restart\nyour computer, press F8 to select Advanced Startup Options, and then\nselect Safe Mode.\n\nTechnical information:\n*** STOP: 0x0000007E (0xFFFFFFFFC0000005,0xFFFFF80002F8A16A,0xFFFFF880009A8C28,0xFFFFF880009A8480)",
	textSize: 48
}, {
	name: "Windows 10",
	color: 0x0078d7,
	face: ":(",
	text: "Your PC ran into a problem and needs to restart.\nWe're just collecting some error info, and then we'll restart for you.\n\nFor more information about this issue and possible fixes, visit\nhttps://www.windows.com/stopcode\n\nIf you call a support person, give them this info:\nSTOP CODE: FRVR_GAME_CRASHED",
	textSize: 60
}, {
	name: "Windows 11",
	color: 0x003399,
	face: ":(",
	text: "Your device ran into a problem and needs to restart.\nWe're just collecting some error info, and then we'll restart for you.\n\nFor more information about this issue and possible fixes, visit\nhttps://www.windows.com/stopcode\n\nIf you call a support person, give them this info:\nSTOP CODE: FRVR_GAME_CRASHED",
	textSize: 60
},
// Unreleased versions
{
	name: "Windows 12 (Unreleased)",
	color: 0x2222cc,
	face: ":(",
	text: "Your device ran into a problem and needs to restart.\nWe're just collecting some error info, and then we'll restart for you.\n\nFor more information about this issue and possible fixes, visit\nhttps://www.windows.com/stopcode\n\nIf you call a support person, give them this info:\nSTOP CODE: FRVR_UNRELEASED_BUILD",
	textSize: 60
}, {
	name: "Windows Neptune (Unreleased)",
	color: 0x003366,
	face: "",
	text: "A problem has been detected and Windows Neptune has been shut down to prevent damage\nto your computer.\n\nIf this is the first time you've seen this Stop error screen,\nrestart your computer. If this screen appears again, follow\nthese steps:\n\nCheck to make sure any new hardware or software is properly installed.\nIf this is a new installation, ask your hardware or software manufacturer\nfor any Windows updates you might need.\n\nTechnical information:\n*** STOP: 0x0000007E (0xFFFFFFFFC0000005,0xFFFFF80002F8A16A,0xFFFFF880009A8C28,0xFFFFF880009A8480)",
	textSize: 48
}, {
	name: "Windows Longhorn (Unreleased)",
	color: 0x004488,
	face: "",
	text: "A problem has been detected and Windows Longhorn has been shut down to prevent damage\nto your computer.\n\nIf this is the first time you've seen this Stop error screen,\nrestart your computer. If this screen appears again, follow\nthese steps:\n\nCheck to make sure any new hardware or software is properly installed.\nIf this is a new installation, ask your hardware or software manufacturer\nfor any Windows updates you might need.\n\nTechnical information:\n*** STOP: 0xDEADDEAD (0x00000000,0x00000000,0x00000000,0x00000000)",
	textSize: 48
}];
// --- UI State ---
var versionButtons = [];
var versionSelectButtons = [];
var selectedVersionIdx = null;
// --- Helper: Remove all children except version buttons ---
function clearScreenExceptVersionBtns() {
	for (var i = game.children.length - 1; i >= 0; i--) {
		var child = game.children[i];
		if (versionButtons.indexOf(child) === -1 && versionSelectButtons.indexOf(child) === -1) {
			child.destroy();
		}
	}
}
// --- Step 1: Show version selection buttons ---
function showVersionButtons() {
	// Remove any previous version select buttons
	for (var i = 0; i < versionSelectButtons.length; ++i) {
		versionSelectButtons[i].destroy();
	}
	versionSelectButtons = [];
	// Remove any blue screen or other overlays
	clearScreenExceptVersionBtns();
	// Remove old version buttons
	for (var i = 0; i < versionButtons.length; ++i) {
		versionButtons[i].destroy();
	}
	versionButtons = [];
	// Layout: vertical stack, centered
	var btnW = 700,
		btnH = 200,
		spacing = 60;
	var totalH = windowsVersions.length * btnH + (windowsVersions.length - 1) * spacing;
	var startY = (2732 - totalH) / 2 + btnH / 2;
	for (var i = 0; i < windowsVersions.length; ++i) {
		(function (idx) {
			var btn = new BlueButton();
			btn.setLabel(windowsVersions[idx].name);
			btn.x = 2048 / 2;
			btn.y = startY + i * (btnH + spacing);
			btn.visible = true;
			btn.alpha = 1;
			btn.up = function (x, y, obj) {
				showVersionSelect(idx);
			};
			game.addChild(btn);
			versionButtons.push(btn);
		})(i);
	}
	// --- Scroll Bar and Buttons for Home/Version List ---
	// Place scroll bar and buttons in a horizontal row at the right edge, vertically centered with the version list
	var scrollBarW = 80;
	var scrollBarH = 1200; // Will be resized dynamically
	var scrollBarX = 2048 - scrollBarW - 32 - 340 - 24; // leave space for buttons to the right
	var scrollBarY = (2732 - 1200) / 2; // vertically centered
	// Container to hold scroll bar and buttons side by side
	var scrollBarRow = new Container();
	scrollBarRow.x = scrollBarX;
	scrollBarRow.y = scrollBarY;
	game.addChild(scrollBarRow);
	versionButtons.push(scrollBarRow);
	var scrollBarTrack = new Container();
	var scrollBarBg = LK.getAsset('buttonBg', {
		width: scrollBarW,
		height: 400,
		color: 0x222244,
		anchorX: 0.5,
		anchorY: 0
	});
	scrollBarBg.x = scrollBarW / 2;
	scrollBarBg.y = 0;
	scrollBarTrack.addChild(scrollBarBg);
	scrollBarTrack.x = 0;
	scrollBarTrack.y = 0;
	scrollBarRow.addChild(scrollBarTrack);
	var scrollBarThumb = LK.getAsset('buttonBg', {
		width: scrollBarW - 12,
		height: 200,
		color: 0xff2222,
		anchorX: 0.5,
		anchorY: 0
	});
	scrollBarThumb.x = scrollBarW / 2;
	scrollBarThumb.y = 0;
	scrollBarTrack.addChild(scrollBarThumb);
	// Helper to create a red button with label
	function createScrollBtn(label) {
		var btn = new Container();
		var bg = LK.getAsset('buttonBg', {
			width: 340,
			height: 120,
			color: 0xff2222,
			anchorX: 0.5,
			anchorY: 0.5
		});
		btn.addChild(bg);
		var txt = new Text2(label, {
			size: 48,
			fill: 0xffffff
		});
		txt.anchor.set(0.5, 0.5);
		txt.x = 0;
		txt.y = 0;
		btn.addChild(txt);
		btn.down = function () {
			bg.alpha = 0.7;
		};
		btn.up = function () {
			bg.alpha = 1;
		};
		return btn;
	}
	// Create a container to hold the up/down buttons vertically
	var scrollBtnCol = new Container();
	scrollBtnCol.x = scrollBarW + 24; // to the right of the scroll bar
	scrollBtnCol.y = 0;
	scrollBarRow.addChild(scrollBtnCol);
	// Scroll state for version list
	var versionListScrollOffset = 0;
	var versionListBtnH = btnH;
	var versionListSpacing = spacing;
	var versionListVisibleCount = Math.floor(1200 / (btnH + spacing));
	var versionListMaxOffset = 0;
	var versionListMinOffset = Math.min(0, (windowsVersions.length - versionListVisibleCount) * (btnH + spacing));
	// Scroll Up button
	var scrollUpBtn = createScrollBtn("Scroll Up");
	scrollUpBtn.x = 340 / 2;
	scrollUpBtn.y = 120 / 2;
	scrollBtnCol.addChild(scrollUpBtn);
	versionButtons.push(scrollUpBtn);
	// Scroll Down button
	var scrollDownBtn = createScrollBtn("Scroll Down");
	scrollDownBtn.x = 340 / 2;
	scrollDownBtn.y = 120 * 1.5 + 32;
	scrollBtnCol.addChild(scrollDownBtn);
	versionButtons.push(scrollDownBtn);
	// Helper to update version button positions based on scroll offset
	function updateVersionButtonPositions() {
		for (var i = 0; i < versionButtons.length; ++i) {
			var btn = versionButtons[i];
			// Only update BlueButton instances (the version select buttons)
			if (btn instanceof BlueButton) {
				var idx = windowsVersions.findIndex(function (v) {
					return v.name === btn.children[0].text;
				});
				if (idx !== -1) {
					btn.y = startY + idx * (btnH + spacing) + versionListScrollOffset;
					// Hide buttons that are out of visible scroll area
					if (btn.y < startY - btnH || btn.y > startY + versionListVisibleCount * (btnH + spacing)) {
						btn.visible = false;
					} else {
						btn.visible = true;
					}
				}
			}
		}
		// Move the thumb
		var scrollRange = versionListMaxOffset - versionListMinOffset;
		var thumbRange = 400 - scrollBarThumb.height;
		var thumbY = 0;
		if (scrollRange > 0) {
			thumbY = Math.round(-versionListScrollOffset / scrollRange * thumbRange);
		}
		scrollBarThumb.y = thumbY;
	}
	// Scroll up/down button logic
	// Move the whole version list screen up/down by shifting all versionButtons and scrollBarRow
	scrollUpBtn.up = function () {
		// Move everything up by a small step
		for (var i = 0; i < versionButtons.length; ++i) {
			var btn = versionButtons[i];
			btn.y -= Math.round((btnH + spacing) * 0.15);
		}
		// Also move the scrollBarRow up
		scrollBarRow.y -= Math.round((btnH + spacing) * 0.15);
	};
	scrollDownBtn.up = function () {
		// Move everything down by a small step
		for (var i = 0; i < versionButtons.length; ++i) {
			var btn = versionButtons[i];
			btn.y += Math.round((btnH + spacing) * 0.15);
		}
		// Also move the scrollBarRow down
		scrollBarRow.y += Math.round((btnH + spacing) * 0.15);
	};
	// Allow dragging the scroll thumb
	var thumbDragStartY = null;
	var thumbDragStartOffset = null;
	scrollBarThumb.down = function (x, y, obj) {
		thumbDragStartY = y;
		thumbDragStartOffset = versionListScrollOffset;
	};
	scrollBarThumb.move = function (x, y, obj) {
		if (thumbDragStartY !== null) {
			var dy = y - thumbDragStartY;
			var scrollRange = versionListMaxOffset - versionListMinOffset;
			var thumbRange = 400 - scrollBarThumb.height;
			if (thumbRange > 0) {
				var scrollDelta = -dy * (scrollRange / thumbRange);
				versionListScrollOffset = thumbDragStartOffset + scrollDelta;
				if (versionListScrollOffset > versionListMaxOffset) versionListScrollOffset = versionListMaxOffset;
				if (versionListScrollOffset < versionListMinOffset) versionListScrollOffset = versionListMinOffset;
				updateVersionButtonPositions();
			}
		}
	};
	scrollBarThumb.up = function (x, y, obj) {
		thumbDragStartY = null;
		thumbDragStartOffset = null;
	};
	// Initial update
	updateVersionButtonPositions();
}
// --- Step 2: Show "See Blue Screen" button for selected version ---
function showVersionSelect(idx) {
	// Remove version buttons
	for (var i = 0; i < versionButtons.length; ++i) {
		versionButtons[i].destroy();
	}
	versionButtons = [];
	// Remove any previous select buttons
	for (var i = 0; i < versionSelectButtons.length; ++i) {
		versionSelectButtons[i].destroy();
	}
	versionSelectButtons = [];
	clearScreenExceptVersionBtns();
	selectedVersionIdx = idx;
	var version = windowsVersions[idx];
	// Show version name as title
	var title = new Text2(version.name, {
		size: 120,
		fill: 0x222222
	});
	title.anchor.set(0.5, 0.5);
	title.x = 2048 / 2;
	title.y = 2732 / 2 - 300;
	game.addChild(title);
	versionSelectButtons.push(title);
	// Show "See Blue Screen" button
	var seeBtn = new BlueButton();
	seeBtn.setLabel("See Blue Screen");
	seeBtn.x = 2048 / 2;
	seeBtn.y = 2732 / 2 + 100;
	seeBtn.visible = true;
	seeBtn.alpha = 1;
	seeBtn.up = function (x, y, obj) {
		showBlueScreen(idx);
	};
	game.addChild(seeBtn);
	versionSelectButtons.push(seeBtn);
	// --- Scroll Bar and Buttons for Home/Version Select ---
	// Place scroll bar and buttons in a horizontal row at the right edge, just right of the title
	var scrollBarW = 80;
	var scrollBarH = 1200; // Will be resized dynamically
	var scrollBarX = 2048 - scrollBarW - 32 - 340 - 24; // leave space for buttons to the right
	var scrollBarY = 2732 / 2 - 300 + 60; // below the title
	// Container to hold scroll bar and buttons side by side
	var scrollBarRow = new Container();
	scrollBarRow.x = scrollBarX;
	scrollBarRow.y = scrollBarY;
	game.addChild(scrollBarRow);
	versionSelectButtons.push(scrollBarRow);
	var scrollBarTrack = new Container();
	var scrollBarBg = LK.getAsset('buttonBg', {
		width: scrollBarW,
		height: 400,
		color: 0x222244,
		anchorX: 0.5,
		anchorY: 0
	});
	scrollBarBg.x = scrollBarW / 2;
	scrollBarBg.y = 0;
	scrollBarTrack.addChild(scrollBarBg);
	scrollBarTrack.x = 0;
	scrollBarTrack.y = 0;
	scrollBarRow.addChild(scrollBarTrack);
	var scrollBarThumb = LK.getAsset('buttonBg', {
		width: scrollBarW - 12,
		height: 200,
		color: 0xff2222,
		anchorX: 0.5,
		anchorY: 0
	});
	scrollBarThumb.x = scrollBarW / 2;
	scrollBarThumb.y = 0;
	scrollBarTrack.addChild(scrollBarThumb);
	// Helper to create a red button with label
	function createScrollBtn(label) {
		var btn = new Container();
		var bg = LK.getAsset('buttonBg', {
			width: 340,
			height: 120,
			color: 0xff2222,
			anchorX: 0.5,
			anchorY: 0.5
		});
		btn.addChild(bg);
		var txt = new Text2(label, {
			size: 48,
			fill: 0xffffff
		});
		txt.anchor.set(0.5, 0.5);
		txt.x = 0;
		txt.y = 0;
		btn.addChild(txt);
		btn.down = function () {
			bg.alpha = 0.7;
		};
		btn.up = function () {
			bg.alpha = 1;
		};
		return btn;
	}
	// Create a container to hold the up/down buttons vertically
	var scrollBtnCol = new Container();
	scrollBtnCol.x = scrollBarW + 24; // to the right of the scroll bar
	scrollBtnCol.y = 0;
	scrollBarRow.addChild(scrollBtnCol);
	// Scroll Up button
	var scrollUpBtn = createScrollBtn("Scroll Up");
	scrollUpBtn.x = 340 / 2;
	scrollUpBtn.y = 120 / 2;
	scrollBtnCol.addChild(scrollUpBtn);
	versionSelectButtons.push(scrollUpBtn);
	// Scroll Down button
	var scrollDownBtn = createScrollBtn("Scroll Down");
	scrollDownBtn.x = 340 / 2;
	scrollDownBtn.y = 120 * 1.5 + 32;
	scrollBtnCol.addChild(scrollDownBtn);
	versionSelectButtons.push(scrollDownBtn);
	// Show "Back" button
	var backBtn = new BlueButton();
	backBtn.setLabel("Back");
	backBtn.x = 2048 / 2;
	backBtn.y = 2732 / 2 + 350;
	backBtn.visible = true;
	backBtn.alpha = 1;
	backBtn.up = function (x, y, obj) {
		showVersionButtons();
	};
	game.addChild(backBtn);
	versionSelectButtons.push(backBtn);
}
// --- Step 3: Show blue screen for selected version ---
function showBlueScreen(idx) {
	// Remove all UI
	for (var i = 0; i < versionButtons.length; ++i) {
		versionButtons[i].destroy();
	}
	versionButtons = [];
	for (var i = 0; i < versionSelectButtons.length; ++i) {
		versionSelectButtons[i].destroy();
	}
	versionSelectButtons = [];
	clearScreenExceptVersionBtns();
	var version = windowsVersions[idx];
	// Set background color
	game.setBackgroundColor(version.color);
	// Show sad face if present
	if (version.face) {
		var sadFace = new Text2(version.face, {
			size: 400,
			fill: 0xFFFFFF
		});
		sadFace.anchor.set(0.5, 0.5);
		sadFace.x = 2048 / 2;
		sadFace.y = 2732 / 2 - 350;
		game.addChild(sadFace);
	}
	// Create a scrollable container for the blue screen text
	var scrollContainer = new Container();
	scrollContainer.x = 0;
	scrollContainer.y = 0;
	game.addChild(scrollContainer);
	// Show blue screen text inside the scrollable container
	var bsodText = new Text2(version.text, {
		size: version.textSize,
		fill: 0xFFFFFF,
		align: "center"
	});
	bsodText.anchor.set(0.5, 0);
	bsodText.x = 2048 / 2;
	bsodText.y = 2732 / 2 + 50;
	scrollContainer.addChild(bsodText);
	// Set up scrolling state
	var scrollStartY = null;
	var scrollLastY = null;
	var scrollOffsetY = 0;
	var scrollMinY = Math.min(0, 2732 - (bsodText.y + bsodText.height + 100));
	var scrollMaxY = 0;
	// Touch/mouse down to start scroll
	scrollContainer.down = function (x, y, obj) {
		scrollStartY = y;
		scrollLastY = y;
	};
	// Touch/mouse move to scroll
	scrollContainer.move = function (x, y, obj) {
		if (scrollStartY !== null) {
			var deltaY = y - scrollLastY;
			scrollOffsetY += deltaY;
			// Clamp scroll
			if (scrollOffsetY < scrollMinY) scrollOffsetY = scrollMinY;
			if (scrollOffsetY > scrollMaxY) scrollOffsetY = scrollMaxY;
			bsodText.y = 2732 / 2 + 50 + scrollOffsetY;
			scrollLastY = y;
		}
	};
	// Touch/mouse up to end scroll
	scrollContainer.up = function (x, y, obj) {
		scrollStartY = null;
		scrollLastY = null;
	};
	// Forward game move/down/up events to scrollContainer if inside text area
	var origGameDown = game.down;
	var origGameMove = game.move;
	var origGameUp = game.up;
	game.down = function (x, y, obj) {
		// Only allow scroll if inside bsodText area
		var local = bsodText.toLocal({
			x: x,
			y: y
		}, game);
		if (x >= bsodText.x - bsodText.width / 2 && x <= bsodText.x + bsodText.width / 2 && y >= bsodText.y && y <= bsodText.y + bsodText.height) {
			if (scrollContainer.down) scrollContainer.down(x, y, obj);
		} else if (origGameDown) {
			origGameDown(x, y, obj);
		}
	};
	game.move = function (x, y, obj) {
		if (scrollStartY !== null) {
			if (scrollContainer.move) scrollContainer.move(x, y, obj);
		} else if (origGameMove) {
			origGameMove(x, y, obj);
		}
	};
	game.up = function (x, y, obj) {
		if (scrollStartY !== null) {
			if (scrollContainer.up) scrollContainer.up(x, y, obj);
		} else if (origGameUp) {
			origGameUp(x, y, obj);
		}
	};
	// Show "Back" button to return to version select
	var backBtn = new BlueButton();
	backBtn.setLabel("Back");
	backBtn.x = 2048 / 2;
	backBtn.y = 2732 - 250;
	backBtn.visible = true;
	backBtn.alpha = 1;
	backBtn.up = function (x, y, obj) {
		showVersionSelect(idx);
	};
	game.addChild(backBtn);
	versionSelectButtons.push(backBtn);
}
// --- BlueButton: add setLabel method ---
BlueButton.prototype.setLabel = function (txt) {
	// Find the Text2 child and set its text
	for (var i = 0; i < this.children.length; ++i) {
		if (this.children[i] instanceof Text2) {
			this.children[i].setText(txt);
			break;
		}
	}
};
// --- Start the UI ---
showVersionButtons();
// No update loop or other game logic needed for this MVP
// No GUI elements needed
// No sounds, music, or other effects per requirements;