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

/**** 
* Classes
****/ 
// Fly class
var Fly = Container.expand(function () {
	var self = Container.call(this);
	var flyAsset = self.attachAsset('fly', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = flyAsset.width;
	self.height = flyAsset.height;
	// Physics
	self.vy = 0;
	self.gravity = 1.2;
	self.lift = -28;
	// For touch controls
	self.flap = function () {
		self.vy = self.lift;
	};
	// Update position
	self.update = function () {
		self.vy += self.gravity;
		self.y += self.vy;
		// Clamp to screen
		if (self.y < self.height / 2) {
			self.y = self.height / 2;
			self.vy = 0;
		}
		if (self.y > 2732 - self.height / 2) {
			self.y = 2732 - self.height / 2;
			self.vy = 0;
		}
	};
	return self;
});
// Swatter class
var Swatter = Container.expand(function () {
	var self = Container.call(this);
	// Swatter types and their point values
	var swatterTypes = [{
		id: 'swatter_red',
		points: 50
	}, {
		id: 'swatter_yellow',
		points: 35
	}, {
		id: 'swatter_green',
		points: 20
	}, {
		id: 'swatter_blue',
		points: 60
	}];
	// Randomly select a type
	var typeIndex = Math.floor(Math.random() * swatterTypes.length);
	self.type = swatterTypes[typeIndex];
	self.points = self.type.points;
	// Attach asset
	var swatterAsset = self.attachAsset(self.type.id, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set initial position and speed
	self.x = 2048 + 120; // Start just off the right edge
	self.y = 200 + Math.floor(Math.random() * (2732 - 400));
	self.speed = 12 + Math.random() * 6; // Will be increased by level
	// For collision detection
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Initial background: black
});

/**** 
* Game Code
****/ 
// Backgrounds: always black
// Level config
var levelCount = 100;
var currentLevel = 1;
var swatterInterval = 90; // ticks between swatters, stays constant
var swatterSpeedBonus = 0; // stays constant
// Score
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Level text
var levelTxt = new Text2('Seviye 1', {
	size: 70,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(levelTxt);
levelTxt.y = 120;
// Background node
var bgNode = LK.getAsset('bg_forest', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
bgNode.tint = 0x000000;
game.addChild(bgNode);
// Fly
var fly = new Fly();
game.addChild(fly);
fly.x = 400;
fly.y = 2732 / 2;
// Swatters array
var swatters = [];
// For touch controls
var isTouching = false;
// --- Ava: Fly stays in air for 5 seconds, then falls if not touched ---
// Instruction message before game starts
var instructionTxt = new Text2("Sinek ilk 5 saniye havada kalır\nOnu havada tutmak için mouse ile tıklayın", {
	size: 90,
	fill: 0xffffff,
	align: "center"
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 2048 / 2;
instructionTxt.y = 2732 / 2;
instructionTxt.alpha = 1;
game.addChild(instructionTxt);
// Block game logic until instruction is gone
var gameBlocked = true;
// Fade out after 2s, then remove and unblock game
LK.setTimeout(function () {
	tween(instructionTxt, {
		alpha: 0
	}, {
		duration: 700,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			if (instructionTxt.parent) instructionTxt.parent.removeChild(instructionTxt);
			gameBlocked = false;
			flyStartTime = Date.now(); // Start fly grace period after message
		}
	});
}, 2000);
var flyStartTime = Date.now();
var flyGracePeriod = 5000; // ms
var flyActive = false; // becomes true after first touch or after grace period
var flyFell = false; // if fly has fallen
var swatterRows = 6; // number of swatter rows per spawn
var swatterRowYs = [];
for (var r = 0; r < swatterRows; r++) {
	// Evenly space rows, avoid top/bottom 100px
	var minY = 100 + 60;
	var maxY = 2732 - 100 - 60;
	var rowY = minY + r * ((maxY - minY) / (swatterRows - 1));
	swatterRowYs.push(rowY);
}
// For level progression
var nextLevelScore = 100;
var levelScoreStep = 100;
// Set background for level
function setBackgroundForLevel(level) {
	// Always keep background black, do not change or add any colored backgrounds
	// Remove old background if any
	if (bgNode && bgNode.parent) {
		bgNode.parent.removeChild(bgNode);
	}
	// Create a black background node
	bgNode = LK.getAsset('bg_forest', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	bgNode.tint = 0x000000;
	game.addChildAt(bgNode, 0);
}
// Level up
function levelUp() {
	currentLevel++;
	if (currentLevel > levelCount) {
		LK.showYouWin();
		return;
	}
	setBackgroundForLevel(currentLevel);
	levelTxt.setText('Seviye ' + currentLevel);
	// Difficulty stays constant
	swatterInterval = 90;
	swatterSpeedBonus = 0;
	nextLevelScore += levelScoreStep;
	// Flash background for level up
	LK.effects.flashScreen(0xffff00, 600);
}
// Touch/drag controls
game.down = function (x, y, obj) {
	isTouching = true;
	if (!flyActive) {
		flyActive = true;
	}
	fly.flap();
};
game.up = function (x, y, obj) {
	isTouching = false;
};
game.move = function (x, y, obj) {
	// Optional: allow dragging fly up/down
	if (isTouching) {
		fly.y = y;
	}
};
// Main update loop
game.update = function () {
	// --- Ava: Block all game logic until instruction message is gone ---
	if (gameBlocked) {
		return;
	}
	// --- Ava: Fly grace period and falling logic ---
	if (!flyActive && !flyFell) {
		// During grace period, keep fly in air
		if (Date.now() - flyStartTime < flyGracePeriod) {
			fly.vy = 0;
			// Keep fly at initial y
			fly.y = 2732 / 2;
		} else {
			// Grace period over, fly falls unless touched
			flyActive = true;
			isTouching = false;
		}
	}
	if (flyActive && !isTouching && !flyFell) {
		// If not touching after grace, let fly fall
		fly.update();
		if (fly.y >= 2732 - fly.height / 2 - 1) {
			// Fly hit the ground
			flyFell = true;
			LK.effects.flashScreen(0x222222, 800);
			LK.showGameOver();
			return;
		}
	} else if (!flyActive) {
		// During grace, don't update physics
	} else if (isTouching && !flyFell) {
		fly.update();
	} else if (!flyFell) {
		fly.update();
	}
	// --- Ava: Swatters spawn in every row ---
	if (LK.ticks % swatterInterval === 0) {
		// --- Ava: Randomize swatter spawn order each wave ---
		// Create a shuffled copy of swatterRowYs
		var shuffledRows = [];
		for (var i = 0; i < swatterRowYs.length; i++) {
			shuffledRows[i] = swatterRowYs[i];
		}
		// Fisher-Yates shuffle
		for (var i = shuffledRows.length - 1; i > 0; i--) {
			var j = Math.floor(Math.random() * (i + 1));
			var temp = shuffledRows[i];
			shuffledRows[i] = shuffledRows[j];
			shuffledRows[j] = temp;
		}
		for (var r = 0; r < swatterRows; r++) {
			var swatter = new Swatter();
			swatter.speed += swatterSpeedBonus;
			swatter.y = shuffledRows[r];
			swatters.push(swatter);
			game.addChild(swatter);
		}
	}
	// Update swatters
	for (var i = swatters.length - 1; i >= 0; i--) {
		var sw = swatters[i];
		sw.update();
		// Collision
		if (fly.intersects(sw)) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		// Off screen
		if (sw.x < -200) {
			// Award points for successful dodge
			LK.setScore(LK.getScore() + sw.points);
			scoreTxt.setText(LK.getScore());
			// Level up if needed
			if (LK.getScore() >= nextLevelScore) {
				levelUp();
			}
			sw.destroy();
			swatters.splice(i, 1);
		}
	}
};
// Reset game state on restart
LK.on('gameStart', function () {
	// Reset variables
	currentLevel = 1;
	swatterInterval = 90;
	swatterSpeedBonus = 0;
	nextLevelScore = 100;
	setBackgroundForLevel(currentLevel);
	levelTxt.setText('Seviye 1');
	LK.setScore(0);
	scoreTxt.setText('0');
	// Remove all swatters
	for (var i = 0; i < swatters.length; i++) {
		swatters[i].destroy();
	}
	swatters = [];
	// Reset fly
	fly.x = 400;
	fly.y = 2732 / 2;
	fly.vy = 0;
	flyActive = false;
	flyFell = false;
	// Show instruction message again and block game
	gameBlocked = true;
	instructionTxt.setText("Sinek ilk 5 saniye havada kalır\nOnu havada tutmak için mouse ile tıklayın");
	instructionTxt.alpha = 1;
	if (!instructionTxt.parent) game.addChild(instructionTxt);
	instructionTxt.x = 2048 / 2;
	instructionTxt.y = 2732 / 2;
	LK.setTimeout(function () {
		tween(instructionTxt, {
			alpha: 0
		}, {
			duration: 700,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				if (instructionTxt.parent) instructionTxt.parent.removeChild(instructionTxt);
				gameBlocked = false;
				flyStartTime = Date.now();
			}
		});
	}, 2000);
});
/* End of MVP */

===================================================================
--- original.js
+++ change.js
@@ -256,12 +256,25 @@
 		fly.update();
 	}
 	// --- Ava: Swatters spawn in every row ---
 	if (LK.ticks % swatterInterval === 0) {
+		// --- Ava: Randomize swatter spawn order each wave ---
+		// Create a shuffled copy of swatterRowYs
+		var shuffledRows = [];
+		for (var i = 0; i < swatterRowYs.length; i++) {
+			shuffledRows[i] = swatterRowYs[i];
+		}
+		// Fisher-Yates shuffle
+		for (var i = shuffledRows.length - 1; i > 0; i--) {
+			var j = Math.floor(Math.random() * (i + 1));
+			var temp = shuffledRows[i];
+			shuffledRows[i] = shuffledRows[j];
+			shuffledRows[j] = temp;
+		}
 		for (var r = 0; r < swatterRows; r++) {
 			var swatter = new Swatter();
 			swatter.speed += swatterSpeedBonus;
-			swatter.y = swatterRowYs[r];
+			swatter.y = shuffledRows[r];
 			swatters.push(swatter);
 			game.addChild(swatter);
 		}
 	}