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

/**** 
* Classes
****/ 
// Fire Button class
var FireButton = Container.expand(function () {
	var self = Container.call(this);
	var btn = self.attachAsset('fire_btn', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var txt = new Text2('FIRE', {
		size: 60,
		fill: "#fff"
	});
	txt.anchor.set(0.5, 0.5);
	txt.x = 0;
	txt.y = 0;
	self.addChild(txt);
	// For press effect
	self.flash = function () {
		tween(btn, {
			alpha: 0.5
		}, {
			duration: 80,
			onFinish: function onFinish() {
				tween(btn, {
					alpha: 1
				}, {
					duration: 80
				});
			}
		});
	};
	return self;
});
// Sniper Scope class
var Scope = Container.expand(function () {
	var self = Container.call(this);
	// Scope ring
	var ring = self.attachAsset('scope_ring', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 1
	});
	// Crosshairs
	var crossV = self.attachAsset('scope_crosshair_v', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.5
	});
	var crossH = self.attachAsset('scope_crosshair_h', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.5
	});
	// For shot flash
	self.flash = function () {
		var flash = self.attachAsset('shot_flash', {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 0.7
		});
		tween(flash, {
			alpha: 0
		}, {
			duration: 200,
			onFinish: function onFinish() {
				flash.destroy();
			}
		});
	};
	return self;
});
// Stickman class (base for all stickmen)
var Stickman = Container.expand(function () {
	var self = Container.call(this);
	// Default: civilian
	self.isTarget = false;
	self.isAlive = true;
	// Set up body and head
	var body = null;
	var head = null;
	self.setType = function (type) {
		// Remove previous
		if (body) body.destroy();
		if (head) head.destroy();
		if (type === 'target') {
			body = self.attachAsset('stickman_target_body', {
				anchorX: 0.5,
				anchorY: 0
			});
			head = self.attachAsset('stickman_target_head', {
				anchorX: 0.5,
				anchorY: 0.5,
				y: 0
			});
			head.y = -30;
			self.isTarget = true;
		} else if (type === 'civilian') {
			body = self.attachAsset('stickman_civilian_body', {
				anchorX: 0.5,
				anchorY: 0
			});
			head = self.attachAsset('stickman_civilian_head', {
				anchorX: 0.5,
				anchorY: 0.5,
				y: 0
			});
			head.y = -30;
			self.isTarget = false;
		} else {
			body = self.attachAsset('stickman_body', {
				anchorX: 0.5,
				anchorY: 0
			});
			head = self.attachAsset('stickman_head', {
				anchorX: 0.5,
				anchorY: 0.5,
				y: 0
			});
			head.y = -30;
			self.isTarget = false;
		}
	};
	// For hit detection, we use the head and body rectangles
	self.getHitRects = function () {
		// Returns array of rectangles in game coordinates
		var rects = [];
		if (!body || !head) return rects;
		// Body
		rects.push(new Rectangle(self.x - body.width / 2, self.y, body.width, body.height));
		// Head
		rects.push(new Rectangle(self.x - head.width / 2, self.y - 30 - head.height / 2, head.width, head.height));
		return rects;
	};
	// Animate death
	self.die = function () {
		if (!self.isAlive) return;
		self.isAlive = false;
		// Fade out and fall
		tween(self, {
			rotation: Math.PI / 2,
			alpha: 0
		}, {
			duration: 700,
			easing: tween.cubicOut,
			onFinish: function onFinish() {
				self.visible = false;
			}
		});
	};
	// --- Random Movement for Stickmen ---
	self.moveTarget = {
		x: self.x,
		y: self.y
	};
	self.moveSpeed = 0.7 + Math.random() * 0.8; // px per frame, slower movement
	self.moveCooldown = 0;
	self.lastX = self.x;
	self.lastY = self.y;
	// Helper to pick a new random target within bounds
	self.pickNewTarget = function () {
		// Stickmen should stay within the visible area
		var margin = 120;
		var minX = margin;
		var maxX = 2048 - margin;
		var minY = 400;
		var maxY = 2732 - margin;
		// Prevent stickmen from moving to the top half of the screen in the first, second, and third missions
		// Only for level 0 (first mission), level 1 (second mission), or level 2 (third mission)
		if (typeof currentLevel !== "undefined" && (currentLevel === 0 || currentLevel === 1 || currentLevel === 2)) {
			minY = Math.max(minY, 1366); // 1366 is half of 2732, so only allow bottom half
		}
		self.moveTarget.x = minX + Math.random() * (maxX - minX);
		self.moveTarget.y = minY + Math.random() * (maxY - minY);
		self.moveSpeed = 0.7 + Math.random() * 0.8;
		self.moveCooldown = 60 + Math.floor(Math.random() * 120); // 1-3 seconds before next move
	};
	// Per-frame update for random movement
	self.update = function () {
		if (!self.isAlive) return;
		// Only move if not dying
		self.lastX = self.x;
		self.lastY = self.y;
		// If close to target or cooldown expired, pick a new target
		var dx = self.moveTarget.x - self.x;
		var dy = self.moveTarget.y - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < 10 || self.moveCooldown <= 0) {
			self.pickNewTarget();
		}
		// Move towards target
		if (dist > 1) {
			var step = Math.min(self.moveSpeed, dist);
			self.x += dx / dist * step;
			self.y += dy / dist * step;
		}
		if (self.moveCooldown > 0) self.moveCooldown--;
		// --- Scale up all stickmen as they approach the bottom of the screen in the first and third missions ---
		if (typeof currentLevel !== "undefined" && (currentLevel === 0 || currentLevel === 2)) {
			// y ranges from 1366 (half) to 2732 (bottom)
			var minY = 1366;
			var maxY = 2732;
			var t = (self.y - minY) / (maxY - minY);
			if (t < 0) t = 0;
			if (t > 1) t = 1;
			// Scale from 1.0 at minY to 3.0 at maxY (even greater effect, applies to all stickmen)
			var scale = 1.0 + 2.0 * t;
			self.scaleX = scale;
			self.scaleY = scale;
		} else {
			// All stickmen normal size in other levels
			self.scaleX = 1;
			self.scaleY = 1;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222222
});

/**** 
* Game Code
****/ 
// Background image assets for each environment
// --- Scope Mask Overlay ---
// --- Setup UI ---
var scopeMaskOverlay = null;
function updateScopeMask(x, y) {
	// Remove previous mask if any
	if (scopeMaskOverlay) {
		scopeMaskOverlay.destroy();
		scopeMaskOverlay = null;
	}
	// Create a new container for the mask
	scopeMaskOverlay = new Container();
	// We'll use four black rectangles to cover the area outside the circle, and NOT darken the viewed area
	var radius = 400; // Scope visible radius
	var cx = typeof x === "number" ? x : scope ? scope.x : 2048 / 2;
	var cy = typeof y === "number" ? y : scope ? scope.y : 2732 / 2;
	// Top
	var topRect = LK.getAsset('scope_crosshair_h', {
		width: 2048,
		height: Math.max(0, cy - radius),
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0,
		alpha: 0.98,
		// darken not-viewed area even more
		color: 0xf8f8f8
	});
	topRect.alpha = 0.98;
	scopeMaskOverlay.addChild(topRect);
	// Bottom
	var bottomRect = LK.getAsset('scope_crosshair_h', {
		width: 2048,
		height: Math.max(0, 2732 - (cy + radius)),
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: cy + radius,
		alpha: 0.98,
		// darken not-viewed area even more
		color: 0xf8f8f8
	});
	bottomRect.alpha = 0.98;
	scopeMaskOverlay.addChild(bottomRect);
	// Left
	var leftRect = LK.getAsset('scope_crosshair_h', {
		width: Math.max(0, cx - radius),
		height: 2 * radius,
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: cy - radius,
		alpha: 0.98,
		// darken not-viewed area even more
		color: 0xf8f8f8
	});
	leftRect.alpha = 0.98;
	scopeMaskOverlay.addChild(leftRect);
	// Right
	var rightRect = LK.getAsset('scope_crosshair_h', {
		width: Math.max(0, 2048 - (cx + radius)),
		height: 2 * radius,
		anchorX: 0,
		anchorY: 0,
		x: cx + radius,
		y: cy - radius,
		alpha: 0.98,
		// darken not-viewed area even more
		color: 0xf8f8f8
	});
	rightRect.alpha = 0.98;
	scopeMaskOverlay.addChild(rightRect);
	// Increase alpha of all assets that start with 'scope'
	for (var i = 0; i < scopeMaskOverlay.children.length; ++i) {
		var child = scopeMaskOverlay.children[i];
		if (child.assetId && typeof child.assetId === "string" && child.assetId.indexOf("scope") === 0) {
			child.alpha = 1;
		}
	}
	// No overlay inside the scope; viewed part is not artificially brightened or darkened
	// Add to game (on top of stickmen, under scope)
	game.addChild(scopeMaskOverlay);
	if (scope && scope.parent) {
		scope.parent.setChildIndex(scope, scope.parent.children.length - 1);
	}
}
// Stickman body (used for both targets and civilians, colored differently)
// Sniper scope
// Fire button
// Shot effect
// Sound effects
// Music
var levels = [
// Level 1: City Street
{
	environment: {
		backgroundColor: 0x222222,
		name: "City Street",
		backgroundAssetId: "bg_city"
	},
	targets: [{
		x: 600,
		y: 1200
	}],
	civilians: [{
		x: 900,
		y: 1200
	}, {
		x: 1400,
		y: 1200
	}, {
		x: 700,
		y: 1000
	}, {
		x: 1200,
		y: 1500
	}, {
		x: 1700,
		y: 1100
	}],
	time: 15,
	story: "Eliminate the red stickman. Avoid civilians! (City Street)"
},
// Level 2: Rooftop
{
	environment: {
		backgroundColor: 0x1a2637,
		name: "Rooftop",
		backgroundAssetId: "bg_rooftop"
	},
	targets: [{
		x: 400,
		y: 1000
	}, {
		x: 1600,
		y: 1300
	}],
	civilians: [{
		x: 900,
		y: 1200
	}, {
		x: 1200,
		y: 1400
	}, {
		x: 700,
		y: 1500
	}, {
		x: 500,
		y: 1100
	}, {
		x: 1500,
		y: 1600
	}, {
		x: 1800,
		y: 1200
	}],
	time: 18,
	story: "Two targets this time. Don't miss! (Rooftop)"
},
// Level 3: Park
{
	environment: {
		backgroundColor: 0x2e5d2e,
		name: "Park",
		backgroundAssetId: "bg_park"
	},
	targets: [{
		x: 500,
		y: 900
	}, {
		x: 1550,
		y: 1100
	}, {
		x: 1000,
		y: 1700
	}],
	civilians: [{
		x: 800,
		y: 1200
	}, {
		x: 1200,
		y: 1300
	}, {
		x: 1700,
		y: 1500
	}, {
		x: 600,
		y: 1600
	}, {
		x: 400,
		y: 1000
	}, {
		x: 1800,
		y: 1700
	}, {
		x: 1000,
		y: 900
	}],
	time: 20,
	story: "Three targets. Watch out for blue civilians! (Park)"
},
// Level 4: Desert
{
	environment: {
		backgroundColor: 0xf7e9b0,
		name: "Desert",
		backgroundAssetId: "bg_desert"
	},
	targets: [{
		x: 300,
		y: 1100
	}, {
		x: 1800,
		y: 1200
	}, {
		x: 1000,
		y: 1500
	}, {
		x: 1400,
		y: 900
	}],
	civilians: [{
		x: 600,
		y: 1300
	}, {
		x: 900,
		y: 1000
	}, {
		x: 1200,
		y: 1700
	}, {
		x: 1700,
		y: 1400
	}, {
		x: 400,
		y: 1500
	}, {
		x: 1600,
		y: 1700
	}],
	time: 22,
	story: "Desert operation: Four targets, more civilians. Be careful!"
},
// Level 5: Night Forest
{
	environment: {
		backgroundColor: 0x1a2b1a,
		name: "Night Forest",
		backgroundAssetId: "bg_nightforest"
	},
	targets: [{
		x: 400,
		y: 1000
	}, {
		x: 800,
		y: 1200
	}, {
		x: 1200,
		y: 1400
	}, {
		x: 1600,
		y: 1600
	}, {
		x: 1800,
		y: 1000
	}],
	civilians: [{
		x: 600,
		y: 1100
	}, {
		x: 1000,
		y: 1300
	}, {
		x: 1400,
		y: 1500
	}, {
		x: 1700,
		y: 1700
	}, {
		x: 500,
		y: 1500
	}, {
		x: 1500,
		y: 1200
	}, {
		x: 900,
		y: 1700
	}],
	time: 25,
	story: "Night Forest: Five targets. It's dark and dangerous!"
}];
// --- Game State ---
var currentLevel = 0;
var stickmen = [];
var targetsLeft = 0;
var timeLeft = 0;
var timerInterval = null;
var gameActive = false;
var score = 0;
var shotsFired = 0;
var shotsHit = 0;
var levelStartTime = 0;
// --- UI Elements ---
var scope = null;
var fireBtn = null;
var timerTxt = null;
var scoreTxt = null;
var storyTxt = null;
// --- Setup UI ---
function setupUI() {
	// Remove previous UI if any
	if (timerTxt) timerTxt.destroy();
	if (scoreTxt) scoreTxt.destroy();
	if (storyTxt) storyTxt.destroy();
	// Timer (top right)
	timerTxt = new Text2('00', {
		size: 90,
		fill: "#fff"
	});
	timerTxt.anchor.set(1, 0);
	LK.gui.topRight.addChild(timerTxt);
	// Score (top center)
	scoreTxt = new Text2('Score: 0', {
		size: 90,
		fill: "#fff"
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	// Story (top, below score)
	storyTxt = new Text2('', {
		size: 60,
		fill: "#fff"
	});
	storyTxt.anchor.set(0.5, 0);
	storyTxt.y = 100;
	LK.gui.top.addChild(storyTxt);
}
// --- Start Level ---
function startLevel(levelIdx) {
	// Clean up previous
	for (var i = 0; i < stickmen.length; ++i) {
		stickmen[i].destroy();
	}
	stickmen = [];
	targetsLeft = 0;
	timeLeft = 0;
	gameActive = false;
	shotsFired = 0;
	shotsHit = 0;
	setupUI();
	// Level data
	var level = levels[levelIdx];
	if (!level) {
		// No more levels: show win
		LK.showYouWin();
		return;
	}
	// Remove previous background asset if any
	if (typeof game.bgAsset !== "undefined" && game.bgAsset) {
		game.bgAsset.destroy();
		game.bgAsset = null;
	}
	// Show environment background asset if defined, else fallback to color
	if (level.environment && typeof level.environment.backgroundAssetId === "string") {
		var bgAsset = LK.getAsset(level.environment.backgroundAssetId, {
			anchorX: 0,
			anchorY: 0,
			x: 0,
			y: 0,
			width: 2048,
			height: 2732
		});
		game.addChildAt(bgAsset, 0);
		game.bgAsset = bgAsset;
		// Optionally set background color as fallback
		if (typeof level.environment.backgroundColor === "number") {
			game.setBackgroundColor(level.environment.backgroundColor);
		}
	} else if (level.environment && typeof level.environment.backgroundColor === "number") {
		game.setBackgroundColor(level.environment.backgroundColor);
	}
	// Show story
	storyTxt.setText(level.story);
	// Place stickmen
	// Targets
	for (var i = 0; i < level.targets.length; ++i) {
		var t = new Stickman();
		t.setType('target');
		t.x = level.targets[i].x;
		t.y = level.targets[i].y;
		game.addChild(t);
		stickmen.push(t);
		targetsLeft++;
	}
	// Civilians
	for (var i = 0; i < level.civilians.length; ++i) {
		var c = new Stickman();
		c.setType('civilian');
		c.x = level.civilians[i].x;
		c.y = level.civilians[i].y;
		game.addChild(c);
		stickmen.push(c);
	}
	// Reset scope position to center
	if (scope) scope.destroy();
	scope = new Scope();
	scope.x = 2048 / 2;
	scope.y = 2732 / 2;
	game.addChild(scope);
	updateScopeMask(scope.x, scope.y);
	// Fire button (bottom right, but offset diagonally up left)
	if (fireBtn) fireBtn.destroy();
	fireBtn = new FireButton();
	// Offset the button up and left from the bottom right corner
	fireBtn.x = -180;
	fireBtn.y = -180;
	LK.gui.bottomRight.addChild(fireBtn);
	// Fire button fires shot when pressed
	fireBtn.down = function (x, y, obj) {
		if (gameActive) {
			fireShot();
		}
	};
	fireBtn.up = function (x, y, obj) {
		// No action needed on up
	};
	// Timer
	timeLeft = level.time;
	timerTxt.setText(timeLeft.toFixed(1));
	scoreTxt.setText('Score: ' + score);
	// Start timer
	if (timerInterval) LK.clearInterval(timerInterval);
	timerInterval = LK.setInterval(function () {
		if (!gameActive) return;
		timeLeft -= 0.1;
		if (timeLeft < 0) timeLeft = 0;
		timerTxt.setText(timeLeft.toFixed(1));
		if (timeLeft <= 0) {
			failLevel("Time's up!");
		}
	}, 100);
	// Enable game
	gameActive = true;
	levelStartTime = Date.now();
}
// --- Fire Shot ---
function fireShot() {
	if (!gameActive) return;
	fireBtn.flash();
	scope.flash();
	LK.getSound('shot').play();
	shotsFired++;
	// Check if any stickman is under the scope center
	var hit = false;
	var hitTarget = null;
	var hitCivilian = null;
	for (var i = 0; i < stickmen.length; ++i) {
		var s = stickmen[i];
		if (!s.isAlive) continue;
		var rects = s.getHitRects();
		for (var j = 0; j < rects.length; ++j) {
			var r = rects[j];
			// Scope center is (scope.x, scope.y)
			if (scope.x >= r.x && scope.x <= r.x + r.width && scope.y >= r.y && scope.y <= r.y + r.height) {
				hit = true;
				if (s.isTarget) hitTarget = s;else hitCivilian = s;
				break;
			}
		}
		if (hit) break;
	}
	if (hitTarget) {
		// Success: kill target
		// --- Blood effect ---
		var blood = LK.getAsset('stickman_head', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: hitTarget.x,
			y: hitTarget.y - 30,
			// head center
			color: 0xb80000,
			// deep red
			alpha: 0.8,
			scaleX: 1.2,
			scaleY: 1.2
		});
		game.addChild(blood);
		tween(blood, {
			alpha: 0,
			scaleX: 2.5,
			scaleY: 2.5,
			y: blood.y + 80
		}, {
			duration: 700,
			onFinish: function onFinish() {
				blood.destroy();
			}
		});
		hitTarget.die();
		targetsLeft--;
		shotsHit++;
		score += 100 + Math.max(0, Math.floor(50 * (timeLeft / levels[currentLevel].time)));
		scoreTxt.setText('Score: ' + score);
		// Play success sound when a stickman target is shot
		LK.getSound('success').play();
		if (targetsLeft <= 0) {
			// Level complete
			gameActive = false;
			LK.setTimeout(function () {
				currentLevel++;
				startLevel(currentLevel);
			}, 1200);
		}
	} else if (hitCivilian) {
		// Fail: hit civilian
		hitCivilian.die();
		failLevel("You shot a civilian!");
	} else {
		// Missed shot
		failLevel("You missed!");
	}
}
// --- Fail Level ---
function failLevel(msg) {
	if (!gameActive) return;
	gameActive = false;
	LK.getSound('fail').play();
	LK.effects.flashScreen(0xff0000, 800);
	// Show game over after a short delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 900);
}
// --- Game Move/Drag Handling ---
var draggingScope = false;
var dragOffsetX = 0;
var dragOffsetY = 0;
// Only allow dragging scope, not fire button
game.down = function (x, y, obj) {
	// If touch is inside fireBtn, don't drag scope
	var local = LK.gui.bottomRight.toLocal({
		x: x,
		y: y
	});
	if (fireBtn && fireBtn.containsPoint && fireBtn.containsPoint(local)) {
		// Do nothing, handled by fireBtn
		return;
	}
	// Allow dragging scope from anywhere on the screen
	draggingScope = true;
	dragOffsetX = x - scope.x;
	dragOffsetY = y - scope.y;
};
game.move = function (x, y, obj) {
	if (draggingScope && gameActive) {
		// Clamp scope inside game area
		var nx = x - dragOffsetX;
		var ny = y - dragOffsetY;
		// Keep scope inside screen
		if (nx < 200) nx = 200;
		if (nx > 2048 - 200) nx = 2048 - 200;
		if (ny < 200) ny = 200;
		if (ny > 2732 - 200) ny = 2732 - 200;
		scope.x = nx;
		scope.y = ny;
		updateScopeMask(scope.x, scope.y);
	}
};
game.up = function (x, y, obj) {
	draggingScope = false;
};
// Fire button press
fireBtn = null; // Will be created in startLevel
// (Removed: fire is now triggered by releasing the scope, not the button)
// fireBtn.down is now always assigned in startLevel after creation
// --- Game Update ---
game.update = function () {
	// Move all stickmen randomly
	for (var i = 0; i < stickmen.length; ++i) {
		if (stickmen[i] && stickmen[i].update) stickmen[i].update();
	}
};
// --- Start Game ---
currentLevel = 0;
score = 0;
setupUI();
startLevel(currentLevel);
// --- Play music ---
LK.playMusic('sniper_bg');