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

/**** 
* Classes
****/ 
var Drum = Container.expand(function () {
	var self = Container.call(this);
	self.drumType = 'none'; // 'large', 'left', 'right', 'sit', 'stand'
	self.action = null; // function to call on tap
	// Set up drum asset
	self.setDrum = function (type) {
		self.drumType = type;
		var assetId = type === 'large' ? 'drum_large' : 'drum_medium';
		var drum = self.attachAsset(assetId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// (Drum label removed)
	};
	// Drum tap effect
	self.flash = function () {
		tween(self, {
			scaleX: 1.18,
			scaleY: 0.92
		}, {
			duration: 80,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 120
				});
			}
		});
	};
	// Touch event
	self.down = function (x, y, obj) {
		self.flash();
		// Play unique sound for each drum type
		if (self.drumType === 'large') {
			LK.getSound('drum_tap_center').play();
		} else if (self.drumType === 'left') {
			LK.getSound('drum_tap_left').play();
		} else if (self.drumType === 'right') {
			LK.getSound('drum_tap_right').play();
		} else if (self.drumType === 'sit') {
			var sitSound = LK.getSound('drum_tap_sit');
			sitSound.play();
			LK.setTimeout(function () {
				sitSound.play();
			}, 120);
		} else if (self.drumType === 'stand') {
			// Play the sound with 3 fast delay effects (echoes)
			var base = LK.getSound('drum_tap_stand');
			base.play();
			LK.setTimeout(function () {
				base.play();
			}, 45);
			LK.setTimeout(function () {
				base.play();
			}, 90);
		} else {
			// No fallback sound
		}
		if (self.action) self.action();
	};
	return self;
});
var Puppet = Container.expand(function () {
	var self = Container.call(this);
	var headH = 120 * 2.1,
		headW = 120 * 2.1;
	var bodyH = 200 * 2.1,
		bodyW = 80 * 2.1;
	var upperArmH = 100 * 1.5,
		upperArmW = 40 * 1.5;
	var lowerArmH = 90 * 1.5,
		lowerArmW = 32 * 1.5;
	var upperLegH = 120 * 1.5,
		upperLegW = 48 * 1.5;
	var lowerLegH = 110 * 1.5,
		lowerLegW = 40 * 1.5;
	var head = self.attachAsset('puppet_head', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2.1,
		scaleY: 2.1
	});
	var neck = self.attachAsset('puppet_neck', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		// match hip scale
		scaleY: 1.5
	});
	var lShoulder = self.attachAsset('puppet_shoulder', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rShoulder = self.attachAsset('puppet_shoulder', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var body = self.attachAsset('puppet_body', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 2.1,
		scaleY: 2.1
	});
	var lHip = self.attachAsset('puppet_hip', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rHip = self.attachAsset('puppet_hip', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lUpperArm = self.attachAsset('puppet_upperarm', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lElbow = self.attachAsset('puppet_elbow', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lLowerArm = self.attachAsset('puppet_lowerarm', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rUpperArm = self.attachAsset('puppet_upperarm', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rElbow = self.attachAsset('puppet_elbow', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rLowerArm = self.attachAsset('puppet_lowerarm', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lLowerLeg = self.attachAsset('puppet_lowerleg', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rLowerLeg = self.attachAsset('puppet_lowerleg', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lUpperLeg = self.attachAsset('puppet_upperleg', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var lKnee = self.attachAsset('puppet_knee', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rUpperLeg = self.attachAsset('puppet_upperleg', {
		anchorX: 0.5,
		anchorY: 0,
		scaleX: 1.5,
		scaleY: 1.5
	});
	var rKnee = self.attachAsset('puppet_knee', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.5,
		scaleY: 1.5
	});
	self.state = {
		vx: 0,
		// horizontal velocity
		vy: 0,
		// vertical velocity
		grounded: false,
		pose: 'stand',
		// 'stand', 'sit', 'jump'
		headAngle: 0,
		// radians, for "pull head" actions
		x: 0,
		// world position
		y: 0,
		lUpperLegRotation: 0,
		// additional rotation for left upper leg
		rUpperLegRotation: 0,
		// additional rotation for right upper leg
		lLowerLegRotation: 0,
		// additional rotation for left lower leg
		rLowerLegRotation: 0 // additional rotation for right lower leg
	};
	function updateBodyParts() {
		head.x = 0;
		head.y = -bodyH / 2 - headH / 2 - 30;
		head.rotation = self.state.headAngle;
		var hipH = 44 * 1.5;
		var neckH = hipH;
		neck.x = 0;
		neck.y = -bodyH / 2 - neckH / 2 + 38;
		neck.rotation = 0;
		body.x = 0;
		body.y = -bodyH / 2;
		var armY = -bodyH / 2 + 30;
		var armX = bodyW / 2 + upperArmW / 2 - 10;
		var lShoulderX = -armX;
		var lShoulderY = armY;
		var rShoulderX = armX;
		var rShoulderY = armY;
		lShoulder.x = lShoulderX;
		lShoulder.y = lShoulderY;
		rShoulder.x = rShoulderX;
		rShoulder.y = rShoulderY;
		var armAbduction = 0.32;
		var baseUpperArmAngle = 0.0;
		var baseLowerArmAngle = 0.0;
		var lUpperArmAngle = -armAbduction + baseUpperArmAngle;
		var rUpperArmAngle = armAbduction + baseUpperArmAngle;
		var lLowerArmAngle = baseLowerArmAngle;
		var rLowerArmAngle = baseLowerArmAngle;
		if (self.state.pose === 'sit') {
			lUpperArmAngle = -1.25 - armAbduction;
			rUpperArmAngle = 1.25 + armAbduction;
			lLowerArmAngle = 1.5;
			rLowerArmAngle = -1.5;
		} else if (self.state.pose === 'jump') {
			lUpperArmAngle = -1.6 - armAbduction;
			rUpperArmAngle = 1.6 + armAbduction;
			lLowerArmAngle = 2.0;
			rLowerArmAngle = -2.0;
		} else if (self.state.pose === 'stand') {
			lUpperArmAngle += self.state.vx * 0.01;
			rUpperArmAngle -= self.state.vx * 0.01;
			lLowerArmAngle += Math.sin(Date.now() * 0.003) * 0.08;
			rLowerArmAngle -= Math.sin(Date.now() * 0.003) * 0.08;
		}
		lUpperArm.x = lShoulderX;
		lUpperArm.y = lShoulderY;
		var lElbowX = lUpperArm.x + Math.sin(lUpperArmAngle) * upperArmH;
		var lElbowY = lUpperArm.y + Math.cos(lUpperArmAngle) * upperArmH;
		lElbow.x = lElbowX;
		lElbow.y = lElbowY;
		lUpperArm.rotation = Math.atan2(lElbow.y - lUpperArm.y, lElbow.x - lUpperArm.x) - Math.PI / 2;
		lLowerArm.x = lElbowX;
		lLowerArm.y = lElbowY;
		lLowerArm.rotation = lLowerArmAngle;
		rUpperArm.x = rShoulderX;
		rUpperArm.y = rShoulderY;
		var rElbowX = rUpperArm.x + Math.sin(rUpperArmAngle) * upperArmH;
		var rElbowY = rUpperArm.y + Math.cos(rUpperArmAngle) * upperArmH;
		rElbow.x = rElbowX;
		rElbow.y = rElbowY;
		rUpperArm.rotation = Math.atan2(rElbow.y - rUpperArm.y, rElbow.x - rUpperArm.x) - Math.PI / 2;
		rLowerArm.x = rElbowX;
		rLowerArm.y = rElbowY;
		rLowerArm.rotation = rLowerArmAngle;
		var legY = bodyH / 2 - 10;
		var legX = bodyW / 2 - 18;
		var lHipX = -legX;
		var lHipY = legY;
		var rHipX = legX;
		var rHipY = legY;
		lHip.x = lHipX;
		lHip.y = lHipY;
		rHip.x = rHipX;
		rHip.y = rHipY;
		var legAbduction = 0.28;
		var lowerLegOutAngle = 0.16;
		var lUpperLegAngle = legAbduction + (self.state.lUpperLegRotation || 0);
		var rUpperLegAngle = -legAbduction + (self.state.rUpperLegRotation || 0);
		var lLowerLegAngle = lowerLegOutAngle + (self.state.lLowerLegRotation || 0);
		var rLowerLegAngle = -lowerLegOutAngle + (self.state.rLowerLegRotation || 0);
		if (self.state.pose === 'sit') {
			lUpperLeg.x = lHip.x;
			lUpperLeg.y = lHip.y;
			rUpperLeg.x = rHip.x;
			rUpperLeg.y = rHip.y;
			var sitThighAngle = 0.55; // radians, larger outward angle for open thighs
			var sitKneeForward = upperLegH * 0.95; // how far forward knees are from hips
			var lKneeX = lUpperLeg.x + Math.sin(-sitThighAngle) * sitKneeForward;
			var lKneeY = lUpperLeg.y + Math.cos(-sitThighAngle) * sitKneeForward;
			var rKneeX = rUpperLeg.x + Math.sin(sitThighAngle) * sitKneeForward;
			var rKneeY = rUpperLeg.y + Math.cos(sitThighAngle) * sitKneeForward;
			var avgKneeY = (lKneeY + rKneeY) / 2;
			lKneeY = avgKneeY;
			rKneeY = avgKneeY;
			if (lKnee.parent) lKnee.parent.removeChild(lKnee);
			if (rKnee.parent) rKnee.parent.removeChild(rKnee);
			lKnee.x = lKneeX;
			lKnee.y = lKneeY;
			rKnee.x = rKneeX;
			rKnee.y = rKneeY;
			lUpperLeg.rotation = Math.atan2(lKnee.y - lUpperLeg.y, lKnee.x - lUpperLeg.x) - Math.PI / 2;
			rUpperLeg.rotation = Math.atan2(rKnee.y - rUpperLeg.y, rKnee.x - rUpperLeg.x) - Math.PI / 2;
			var groundY = 2732 - 80;
			var lowerLegH_px = 110 * 1.5;
			lLowerLeg.x = lKnee.x;
			lLowerLeg.y = lKnee.y;
			var lDeltaY = groundY - lLowerLeg.y;
			var lAngle = Math.acos(Math.max(-1, Math.min(1, lDeltaY / lowerLegH_px))) - Math.PI / 2;
			lLowerLeg.rotation = lAngle;
			rLowerLeg.x = rKnee.x;
			rLowerLeg.y = rKnee.y;
			var rDeltaY = groundY - rLowerLeg.y;
			var rAngle = Math.acos(Math.max(-1, Math.min(1, rDeltaY / lowerLegH_px))) - Math.PI / 2;
			rLowerLeg.rotation = rAngle - 0.55;
			self.addChild(lKnee);
			self.addChild(rKnee);
			body.rotation = 0;
		} else if (self.state.pose === 'jump') {
			var jumpThighAngle = 0.45;
			var jumpKneeBend = 1.25; // radians, how much the knee is bent (smaller = straighter, larger = more bent)
			var avgHipY = (lHip.y + rHip.y) / 2;
			var avgHipX = (lHip.x + rHip.x) / 2;
			var kneeYOffset = -upperLegH * Math.cos(jumpThighAngle); // vertical offset from hips to knees
			var kneeY = avgHipY + kneeYOffset;
			var kneeXLeft = lHip.x + Math.sin(-jumpThighAngle - legAbduction) * upperLegH;
			var kneeXRight = rHip.x + Math.sin(jumpThighAngle + legAbduction) * upperLegH;
			lKnee.x = kneeXLeft;
			lKnee.y = kneeY;
			rKnee.x = kneeXRight;
			rKnee.y = kneeY;
			lUpperLeg.x = lHip.x;
			lUpperLeg.y = lHip.y;
			lUpperLeg.rotation = Math.atan2(lKnee.y - lUpperLeg.y, lKnee.x - lUpperLeg.x) - Math.PI / 2;
			rUpperLeg.x = rHip.x;
			rUpperLeg.y = rHip.y;
			rUpperLeg.rotation = Math.atan2(rKnee.y - rUpperLeg.y, rKnee.x - rUpperLeg.x) - Math.PI / 2;
			lLowerLeg.x = lKnee.x;
			lLowerLeg.y = lKnee.y;
			var lJumpShinLen = lowerLegH;
			var lJumpAnkleX = lKnee.x + Math.sin(lUpperLeg.rotation + Math.PI / 2 + jumpKneeBend) * lJumpShinLen;
			var lJumpAnkleY = lKnee.y + Math.cos(lUpperLeg.rotation + Math.PI / 2 + jumpKneeBend) * lJumpShinLen;
			lLowerLeg.rotation = Math.atan2(lJumpAnkleY - lKnee.y, lJumpAnkleX - lKnee.x) - Math.PI / 2;
			rLowerLeg.x = rKnee.x;
			rLowerLeg.y = rKnee.y;
			var rJumpShinLen = lowerLegH;
			var rJumpAnkleX = rKnee.x + Math.sin(rUpperLeg.rotation + Math.PI / 2 + jumpKneeBend) * rJumpShinLen;
			var rJumpAnkleY = rKnee.y + Math.cos(rUpperLeg.rotation + Math.PI / 2 + jumpKneeBend) * rJumpShinLen;
			rLowerLeg.rotation = Math.atan2(rJumpAnkleY - rKnee.y, rJumpAnkleX - rKnee.x) - Math.PI / 2;
			lLowerArm.x = lElbow.x;
			lLowerArm.y = lElbow.y;
			lLowerArm.rotation = 2.0;
			rLowerArm.x = rElbow.x;
			rLowerArm.y = rElbow.y;
			rLowerArm.rotation = -2.0;
			body.rotation = 0;
		} else if (self.state.pose === 'stand') {
			var standThighAbduction = 0.32; // increased from 0.18 for more outward angle
			lUpperLegAngle -= standThighAbduction;
			rUpperLegAngle += standThighAbduction;
			var walk = Math.abs(self.state.vx) > 0.5 ? Math.sin(Date.now() * 0.008) * 0.25 : 0;
			lUpperLegAngle += walk;
			rUpperLegAngle -= walk;
			lLowerLegAngle += walk * 0.5;
			rLowerLegAngle -= walk * 0.5;
			lUpperLeg.x = lHip.x;
			lUpperLeg.y = lHip.y;
			var lKneeX = lUpperLeg.x + Math.sin(lUpperLegAngle) * upperLegH;
			var lKneeY = lUpperLeg.y + Math.cos(lUpperLegAngle) * upperLegH;
			lKnee.x = lKneeX;
			lKnee.y = lKneeY;
			lUpperLeg.rotation = Math.atan2(lKnee.y - lUpperLeg.y, lKnee.x - lUpperLeg.x) - Math.PI / 2;
			lLowerLeg.x = lKneeX;
			lLowerLeg.y = lKneeY;
			var lStandShinLen = lowerLegH;
			var lStandAnkleX = lKneeX + Math.sin(rLowerLegAngle) * lStandShinLen;
			var lStandAnkleY = lKneeY + Math.cos(rLowerLegAngle) * lStandShinLen;
			lLowerLeg.rotation = Math.atan2(lStandAnkleY - lKneeY, lStandAnkleX - lKneeX) - Math.PI / 2;
			rUpperLeg.x = rHip.x;
			rUpperLeg.y = rHip.y;
			var rKneeX = rUpperLeg.x + Math.sin(rUpperLegAngle) * upperLegH;
			var rKneeY = rUpperLeg.y + Math.cos(rUpperLegAngle) * upperLegH;
			rKnee.x = rKneeX;
			rKnee.y = rKneeY;
			rUpperLeg.rotation = Math.atan2(rKnee.y - rUpperLeg.y, rKnee.x - rUpperLeg.x) - Math.PI / 2;
			rLowerLeg.x = rKneeX;
			rLowerLeg.y = rKneeY;
			var rStandShinLen = lowerLegH;
			var rStandAnkleX = rKneeX + Math.sin(lLowerLegAngle) * rStandShinLen;
			var rStandAnkleY = rKneeY + Math.cos(lLowerLegAngle) * rStandShinLen;
			rLowerLeg.rotation = Math.atan2(rStandAnkleY - rKneeY, rStandAnkleX - rKneeX) - Math.PI / 2;
			body.rotation = 0;
		}
	}
	self.pullHeadLeft = function () {
		if (self.state.grounded) {
			self.state.vx -= 12;
			self.state.headAngle = -0.5;
			tween(self.state, {
				headAngle: 0
			}, {
				duration: 400,
				easing: tween.easeOut
			});
		}
	};
	self.pullHeadRight = function () {
		if (self.state.grounded) {
			self.state.vx += 12;
			self.state.headAngle = 0.5;
			tween(self.state, {
				headAngle: 0
			}, {
				duration: 400,
				easing: tween.easeOut
			});
		}
	};
	self.jump = function () {
		if (self.state.grounded) {
			self.state.vy = -48;
			self.state.grounded = false;
			self.state.pose = 'jump';
			tween(self.state, {}, {
				duration: 0,
				onFinish: function onFinish() {
					LK.setTimeout(function () {
						self.state.pose = 'stand';
					}, 400);
				}
			});
		}
	};
	self.sit = function () {
		if (self.state.grounded && self.state.pose !== 'sit') {
			self.state.pose = 'sit';
			LK.setTimeout(function () {
				self.stand();
			}, 600);
		}
	};
	self.stand = function () {
		if (self.state.grounded && self.state.pose !== 'stand') {
			self.state.pose = 'stand';
		}
	};
	self.update = function () {
		self.state.vy += 3.2; // gravity
		self.state.x += self.state.vx;
		self.state.y += self.state.vy;
		if (self.state.grounded) {
			self.state.vx *= 0.82;
		} else {
			self.state.vx *= 0.98;
		}
		if (self.state.x < 0) self.state.x = 0;
		if (self.state.x > 2048) self.state.x = 2048;
		var groundY = 2732 - 80;
		var puppetFeetOffset = bodyH / 2 + upperLegH + lowerLegH - 20;
		var feetY = self.state.y + puppetFeetOffset;
		if (feetY >= groundY) {
			self.state.y = groundY - puppetFeetOffset;
			self.state.vy = 0;
			self.state.grounded = true;
			if (self.state.pose === 'jump') {
				self.state.pose = 'stand';
			}
		} else {
			self.state.grounded = false;
		}
		self.x = self.state.x;
		self.y = self.state.y;
		updateBodyParts();
	};
	self.state.x = 600; // Moved puppet further right (was 180)
	var puppetFeetOffset = bodyH / 2 + upperLegH + lowerLegH - 20;
	self.state.y = 2732 - 80 - puppetFeetOffset - 40;
	updateBodyParts();
	// --- Knee Tremble Animation ---
	function trembleKnees() {
		// Tremble amplitude and speed
		var amplitude = 0.18 + Math.random() * 0.08; // radians
		var speed = 80 + Math.random() * 40; // ms per shake
		// Animate left knee
		tween(self.state, {
			lLowerLegRotation: amplitude
		}, {
			duration: speed,
			yoyo: true,
			repeat: Infinity,
			easing: tween.easeInOut,
			onUpdate: function onUpdate() {
				// force update body parts for smoothness
				updateBodyParts();
			}
		});
		// Animate right knee
		tween(self.state, {
			rLowerLegRotation: -amplitude
		}, {
			duration: speed,
			yoyo: true,
			repeat: Infinity,
			easing: tween.easeInOut,
			onUpdate: function onUpdate() {
				updateBodyParts();
			}
		});
	}
	trembleKnees();
	return self;
});

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

/**** 
* Game Code
****/ 
// --- Background music playlist (4 tracks, play in random order) ---
var musicTracks = [{
	id: 'musicId',
	volume: 0.1,
	start: 0,
	end: 1
}, {
	id: 'musicId2',
	volume: 0.1,
	start: 0,
	end: 1
}, {
	id: 'musicId3',
	volume: 0.1,
	start: 0,
	end: 1
}, {
	id: 'musicId4',
	volume: 0.1,
	start: 0,
	end: 1
}];
// Shuffle helper (Fisher-Yates)
function shuffleArray(arr) {
	for (var i = arr.length - 1; i > 0; i--) {
		var j = Math.floor(Math.random() * (i + 1));
		var temp = arr[i];
		arr[i] = arr[j];
		arr[j] = temp;
	}
}
// Maintain a shuffled playlist order
var shuffledMusicOrder = [];
function reshuffleMusicOrder() {
	shuffledMusicOrder = [];
	for (var i = 0; i < musicTracks.length; ++i) shuffledMusicOrder.push(i);
	shuffleArray(shuffledMusicOrder);
}
reshuffleMusicOrder();
var currentMusicOrderIndex = 0;
// Play the next music track in the shuffled order, and keep playing forever
function playNextMusic() {
	// If we've played all, reshuffle for a new random order
	if (currentMusicOrderIndex >= shuffledMusicOrder.length) {
		reshuffleMusicOrder();
		currentMusicOrderIndex = 0;
	}
	var trackIndex = shuffledMusicOrder[currentMusicOrderIndex];
	var track = musicTracks[trackIndex];
	// Play music and set up onFinish to play the next one
	LK.playMusic(track.id, {
		loop: false,
		volume: track.volume,
		start: track.start,
		end: track.end,
		onFinish: function onFinish() {
			currentMusicOrderIndex++;
			playNextMusic();
		}
	});
}
playNextMusic();
game.setBackgroundColor(0x000000);
// --- Background ---
// Ava: Add background image behind all elements
var background = LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	scaleX: 1,
	scaleY: 1
});
game.addChild(background);
// Ground
var ground = LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
});
ground.x = 0;
ground.y = 2732 - 80;
game.addChild(ground);
// Finish sign
var finishSign = LK.getAsset('finish_sign', {
	anchorX: 0.5,
	anchorY: 1,
	scaleX: 3,
	scaleY: 6 // 2x as tall as before
});
finishSign.x = 2048 - 120;
finishSign.y = 2732 - 80;
game.addChild(finishSign);
// --- Puppet ---
var puppet = new Puppet();
game.addChild(puppet);
// --- Drums ---
var drums = [];
// Drum positions (relative to center)
// Move drums higher: set drumCenterY above puppet's head
var drumCenterX = 2048 / 2,
	drumCenterY = 900; // was 2732 / 2 + 220, now much higher (puppet head is around y=~1200)
var drumRadius = 220 * 3;
var angleList = [{
	type: 'left',
	angle: -Math.PI / 2 - 0.7
}, {
	type: 'right',
	angle: -Math.PI / 2 + 0.7
}, {
	type: 'sit',
	angle: Math.PI / 2 + 0.7
}, {
	type: 'stand',
	angle: Math.PI / 2 - 0.7
}];
// --- Drum action pool ---
// Each drum will have all actions, only their order will be shuffled
// Ava: Increase the number of right movement actions (pullHeadRight) in the action pool
var puppetActions = [function () {
	puppet.pullHeadLeft();
}, function () {
	puppet.pullHeadRight();
}, function () {
	puppet.pullHeadRight();
}, function () {
	puppet.jump();
}, function () {
	puppet.sit();
}, function () {
	puppet.stand();
}];
// Large center drum (fixed action sequence)
var drumJump = new Drum();
drumJump.setDrum('large');
drumJump.x = drumCenterX;
drumJump.y = drumCenterY;
// Assign a fixed sequence of all 5 actions, and cycle through them
drumJump._actionSequence = puppetActions.slice();
drumJump._actionIndex = 0;
drumJump.action = function () {
	drumJump._actionSequence[drumJump._actionIndex]();
	drumJump._actionIndex = (drumJump._actionIndex + 1) % drumJump._actionSequence.length;
};
game.addChild(drumJump);
drums.push(drumJump);
// Four medium drums
for (var i = 0; i < angleList.length; ++i) {
	var d = new Drum();
	d.setDrum(angleList[i].type);
	d.x = drumCenterX + Math.cos(angleList[i].angle) * drumRadius;
	d.y = drumCenterY + Math.sin(angleList[i].angle) * drumRadius;
	// Each drum gets a fixed sequence of all 5 actions, and cycles through them
	d._actionSequence = puppetActions.slice();
	d._actionIndex = 0;
	d.action = function (drum) {
		return function () {
			drum._actionSequence[drum._actionIndex]();
			drum._actionIndex = (drum._actionIndex + 1) % drum._actionSequence.length;
		};
	}(d);
	game.addChild(d);
	drums.push(d);
}
// --- Timer ---
var timeLeft = 60;
function formatTimeDigital(secs) {
	var m = Math.floor(secs / 60);
	var s = secs % 60;
	var mm = m < 10 ? "0" + m : "" + m;
	var ss = s < 10 ? "0" + s : "" + s;
	return mm + ":" + ss;
}
var timerText = new Text2(formatTimeDigital(60), {
	size: 120,
	fill: '#ffffff'
});
timerText.anchor.set(0.5, 0);
LK.gui.top.addChild(timerText);
// --- Score/Win state ---
var gameEnded = false;
// --- Timer logic ---
var timerInterval = LK.setInterval(function () {
	if (gameEnded) return;
	timeLeft -= 1;
	if (timeLeft < 0) timeLeft = 0;
	timerText.setText(formatTimeDigital(timeLeft));
	if (timeLeft === 0 && !gameEnded) {
		gameEnded = true;
		LK.getSound('lose').play();
		LK.effects.flashScreen(0xff0000, 800);
		LK.showGameOver();
	}
}, 1000);
// --- Game update ---
game.update = function () {
	if (gameEnded) return;
	puppet.update();
	// Win condition: puppet body collides with finish sign using intersects
	if (!gameEnded && puppet.intersects(finishSign)) {
		gameEnded = true;
		LK.setScore(timeLeft); // Set score to remaining seconds
		LK.getSound('win').play();
		LK.effects.flashScreen(0x44c767, 800);
		LK.showYouWin();
	}
};
// --- Clean up on game over ---
game.onDestroy = function () {
	LK.clearInterval(timerInterval);
};
// --- UX: drums are always on top ---
for (var i = 0; i < drums.length; ++i) {
	game.addChild(drums[i]);
}

===================================================================
--- original.js
+++ change.js
@@ -496,8 +496,40 @@
 	self.state.x = 600; // Moved puppet further right (was 180)
 	var puppetFeetOffset = bodyH / 2 + upperLegH + lowerLegH - 20;
 	self.state.y = 2732 - 80 - puppetFeetOffset - 40;
 	updateBodyParts();
+	// --- Knee Tremble Animation ---
+	function trembleKnees() {
+		// Tremble amplitude and speed
+		var amplitude = 0.18 + Math.random() * 0.08; // radians
+		var speed = 80 + Math.random() * 40; // ms per shake
+		// Animate left knee
+		tween(self.state, {
+			lLowerLegRotation: amplitude
+		}, {
+			duration: speed,
+			yoyo: true,
+			repeat: Infinity,
+			easing: tween.easeInOut,
+			onUpdate: function onUpdate() {
+				// force update body parts for smoothness
+				updateBodyParts();
+			}
+		});
+		// Animate right knee
+		tween(self.state, {
+			rLowerLegRotation: -amplitude
+		}, {
+			duration: speed,
+			yoyo: true,
+			repeat: Infinity,
+			easing: tween.easeInOut,
+			onUpdate: function onUpdate() {
+				updateBodyParts();
+			}
+		});
+	}
+	trembleKnees();
 	return self;
 });
 
 /****