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

/**** 
* Classes
****/ 
// Enemy (for future expansion, currently just a box at the top)
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyBox = self.attachAsset('enemyBox', {
		width: 400,
		height: 260,
		// Increased height for a longer (taller) enemy box, width unchanged
		color: 0x2222ff,
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Enemy Bullet
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	// Attach bullet asset (white circle)
	var bullet = self.attachAsset('enemyBullet', {
		width: 60,
		height: 60,
		color: 0xffffff,
		shape: 'ellipse',
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Movement properties
	self.vx = 0;
	self.vy = 0;
	// For pattern logic
	self.pattern = null;
	// Always initialize patternTick to 0 for each bullet
	self.patternTick = 0;
	// Called every tick
	self.update = function () {
		if (self.pattern) {
			self.pattern(self, self.patternTick);
			// Increment patternTick only if pattern is present and called
			self.patternTick = (typeof self.patternTick === "number" ? self.patternTick : 0) + 1;
		} else {
			self.x += self.vx;
			self.y += self.vy;
		}
	};
	return self;
});
// Heart-shaped Soul (Player)
var Soul = Container.expand(function () {
	var self = Container.call(this);
	// Attach heart asset (ellipse, red, scaled to look like a heart)
	// Since we can't draw a heart, use an ellipse and scale it to look heart-like
	var heart = self.attachAsset('soulHeart', {
		width: 60,
		height: 50,
		color: 0xff2d55,
		shape: 'ellipse',
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Squash to make it more heart-like
	heart.scaleY = 1.1;
	heart.scaleX = 1.2;
	// For hit feedback
	self.flash = function () {
		tween(heart, {
			tint: 0xffffff
		}, {
			duration: 80,
			onFinish: function onFinish() {
				tween(heart, {
					tint: 0xff2d55
				}, {
					duration: 120
				});
			}
		});
	};
	// For movement bounds
	self.radius = 30;
	return self;
});

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

/**** 
* Game Code
****/ 
// Game area (the "box" where the soul can move)
// Tween plugin for movement and effects
var boxWidth = 900;
var boxHeight = 900;
var boxX = (2048 - boxWidth) / 2;
var boxY = 2732 - boxHeight - 200;
// Draw the box (white border, transparent fill)
var boxBorder = LK.getAsset('boxBorder', {
	width: boxWidth,
	height: boxHeight,
	color: 0xffffff,
	shape: 'box',
	anchorX: 0,
	anchorY: 0
});
boxBorder.alpha = 0.15;
boxBorder.x = boxX;
boxBorder.y = boxY;
game.addChild(boxBorder);
// Add a big enemy (bi) at the top of the game area
var enemy = new Enemy();
enemy.x = 2048 / 2;
enemy.y = 2732 / 2 - 120; // Move enemy a little up from center
enemy.scaleX = 2.2;
enemy.scaleY = 2.2;
game.addChild(enemy);
// Enemy health bar
var enemyMaxHP = 20;
var enemyHP = enemyMaxHP;
var enemyHealthBarWidth = 700;
var enemyHealthBarHeight = 60;
var enemyHealthBarBg = LK.getAsset('boxBorder', {
	width: enemyHealthBarWidth,
	height: enemyHealthBarHeight,
	color: 0x333333,
	shape: 'box',
	anchorX: 0.5,
	anchorY: 0.5
});
// Place health bar background further below the enemy
enemyHealthBarBg.x = enemy.x;
enemyHealthBarBg.y = enemy.y + 260; // Move health bar further down to match new enemy position
game.addChild(enemyHealthBarBg);
var enemyHealthBar = LK.getAsset('boxBorder', {
	width: enemyHealthBarWidth - 8,
	height: enemyHealthBarHeight - 2,
	color: 0xFFFF00,
	// yellow
	shape: 'box',
	anchorX: 0.5,
	anchorY: 0.5
});
enemyHealthBar.x = enemy.x;
enemyHealthBar.y = enemy.y + 260;
game.addChild(enemyHealthBar);
// Add soul (player) at center of box
var soul = new Soul();
soul.x = boxX + boxWidth / 2;
soul.y = boxY + boxHeight / 2;
game.addChild(soul);
// Health system
var maxHP = 5;
var hp = maxHP;
// Score (number of waves survived)
var score = 0;
// Bullets array
var enemyBullets = [];
// GUI: HP display (top right, avoid top left)
var hpText = new Text2('HP: ' + hp, {
	size: 90,
	fill: 0xFF2D55
});
hpText.anchor.set(1, 0);
LK.gui.topRight.addChild(hpText);
// GUI: Score display (top center)
var scoreText = new Text2('WAVES: 0', {
	size: 90,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Touch controls for soul movement
var draggingSoul = false;
var dragOffsetX = 0;
var dragOffsetY = 0;
// Helper: clamp soul inside box
function clampSoulPosition(x, y) {
	var r = soul.radius;
	var minX = boxX + r;
	var maxX = boxX + boxWidth - r;
	var minY = boxY + r;
	var maxY = boxY + boxHeight - r;
	if (x < minX) x = minX;
	if (x > maxX) x = maxX;
	if (y < minY) y = minY;
	if (y > maxY) y = maxY;
	return {
		x: x,
		y: y
	};
}
// Touch down: start dragging if inside soul
game.down = function (x, y, obj) {
	// Only allow drag if inside soul
	var dx = x - soul.x;
	var dy = y - soul.y;
	if (dx * dx + dy * dy <= soul.radius * soul.radius) {
		draggingSoul = true;
		dragOffsetX = soul.x - x;
		dragOffsetY = soul.y - y;
	}
};
// Touch up: stop dragging
game.up = function (x, y, obj) {
	draggingSoul = false;
};
// Touch move: move soul
game.move = function (x, y, obj) {
	// Always follow the mouse/touch, clamped to the box
	var pos = clampSoulPosition(x, y);
	soul.x = pos.x;
	soul.y = pos.y;
};
// Bullet patterns
function spawnWave(waveNum) {
	// Clear bullets
	for (var i = 0; i < enemyBullets.length; i++) {
		enemyBullets[i].destroy();
	}
	enemyBullets.length = 0;
	// Choose pattern based on waveNum for variety
	var patternType = waveNum % 5;
	if (patternType === 0) {
		// Radial burst (classic)
		var count = 8 + Math.floor(waveNum * 0.7);
		for (var i = 0; i < count; i++) {
			var angle = Math.PI * 2 * i / count;
			var b = new EnemyBullet();
			b.x = 2048 / 2;
			b.y = boxY + 40;
			b.vx = Math.cos(angle) * (3 + waveNum * 0.3);
			b.vy = Math.sin(angle) * (3 + waveNum * 0.3);
			enemyBullets.push(b);
			game.addChild(b);
		}
	} else if (patternType === 1) {
		// Sine wave bullets from both sides
		for (var i = 0; i < 5 + Math.floor(waveNum * 0.7); i++) {
			var b = new EnemyBullet();
			b.x = boxX + 40;
			b.y = boxY + 120 + i * 120;
			b.vx = 4 + waveNum * 0.3;
			b.vy = 0;
			b.pattern = function (self, t) {
				self.x += self.vx;
				self.y += Math.sin((self.x + t * 2) / 80) * 5;
			};
			enemyBullets.push(b);
			game.addChild(b);
		}
		for (var i = 0; i < 5 + Math.floor(waveNum * 0.7); i++) {
			var b = new EnemyBullet();
			b.x = boxX + boxWidth - 40;
			b.y = boxY + 120 + i * 120;
			b.vx = -4 - waveNum * 0.3;
			b.vy = 0;
			b.pattern = function (self, t) {
				self.x += self.vx;
				self.y += Math.sin((self.x + t * 2) / 80) * 5;
			};
			enemyBullets.push(b);
			game.addChild(b);
		}
	} else if (patternType === 2) {
		// Falling zigzag bullets from above
		for (var i = 0; i < 8 + Math.floor(waveNum * 1.2); i++) {
			var b = new EnemyBullet();
			b.x = boxX + 80 + (boxWidth - 160) * (i / (8 + Math.floor(waveNum * 1.2)));
			b.y = boxY + 20;
			b.vx = 0;
			b.vy = 4 + waveNum * 0.2;
			b.pattern = function (self, t) {
				self.y += self.vy;
				self.x += Math.sin(self.y / 60) * 3;
			};
			enemyBullets.push(b);
			game.addChild(b);
		}
	} else if (patternType === 3) {
		// Spiral pattern from center
		var spiralCount = 18 + Math.floor(waveNum * 0.8);
		for (var i = 0; i < spiralCount; i++) {
			var b = new EnemyBullet();
			b.x = 2048 / 2;
			b.y = boxY + 40;
			var baseAngle = Math.PI * 2 * i / spiralCount;
			b.pattern = function (angleOffset) {
				return function (self, t) {
					var speed = 3.5 + waveNum * 0.25;
					var angle = angleOffset + t * 0.07;
					self.x = 2048 / 2 + Math.cos(angle) * speed * t;
					self.y = boxY + 40 + Math.sin(angle) * speed * t;
				};
			}(baseAngle);
			enemyBullets.push(b);
			game.addChild(b);
		}
	} else if (patternType === 4) {
		// Aimed shots at the player (soul), with some spread
		var shots = 7 + Math.floor(waveNum * 0.5);
		for (var i = 0; i < shots; i++) {
			var b = new EnemyBullet();
			b.x = 2048 / 2;
			b.y = boxY + 40;
			// Aim at soul, add spread
			var dx = soul.x - b.x;
			var dy = soul.y - b.y;
			var angle = Math.atan2(dy, dx) + (i - (shots - 1) / 2) * 0.12;
			var speed = 5 + waveNum * 0.2;
			b.vx = Math.cos(angle) * speed;
			b.vy = Math.sin(angle) * speed;
			enemyBullets.push(b);
			game.addChild(b);
		}
	}
}
// Game state
var waveNum = 0;
var waveTimer = 0;
var waveDuration = 240; // 4 seconds per wave
// Invincibility after hit
var invincibleTicks = 0;
// Main update loop
game.update = function () {
	// Update bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var b = enemyBullets[i];
		b.update();
		// Remove if out of box
		if (b.x < boxX - 80 || b.x > boxX + boxWidth + 80 || b.y < boxY - 80 || b.y > boxY + boxHeight + 80) {
			b.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		// Collision with soul
		if (invincibleTicks === 0 && b.intersects(soul)) {
			hp--;
			soul.flash();
			invincibleTicks = 60; // 1 second invincibility
			hpText.setText('HP: ' + hp);
			LK.effects.flashObject(soul, 0xffffff, 300);
			if (hp <= 0) {
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
				return;
			}
		}
		// Example: Decrease enemyHP for demonstration (remove this in real game, or connect to your attack logic)
		// if (someCondition) { enemyHP--; }
		enemyHealthBar.width = (enemyHealthBarWidth - 8) * Math.max(0, enemyHP) / enemyMaxHP;
	}
	// Invincibility timer
	if (invincibleTicks > 0) {
		invincibleTicks--;
	}
	// Wave logic
	waveTimer++;
	if (waveTimer >= waveDuration) {
		waveNum++;
		score++;
		scoreText.setText('WAVES: ' + score);
		waveTimer = 0;
		spawnWave(waveNum);
	}
};
// Start first wave
spawnWave(waveNum);

===================================================================
--- original.js
+++ change.js
@@ -227,31 +227,31 @@
 	for (var i = 0; i < enemyBullets.length; i++) {
 		enemyBullets[i].destroy();
 	}
 	enemyBullets.length = 0;
-	// Pick pattern based on waveNum
-	if (waveNum % 3 === 0) {
-		// Radial burst - easier: fewer bullets, slower speed, bigger gaps
-		var count = 8 + Math.floor(waveNum); // fewer bullets
+	// Choose pattern based on waveNum for variety
+	var patternType = waveNum % 5;
+	if (patternType === 0) {
+		// Radial burst (classic)
+		var count = 8 + Math.floor(waveNum * 0.7);
 		for (var i = 0; i < count; i++) {
 			var angle = Math.PI * 2 * i / count;
 			var b = new EnemyBullet();
 			b.x = 2048 / 2;
 			b.y = boxY + 40;
-			b.vx = Math.cos(angle) * (3 + waveNum * 0.3); // slower
+			b.vx = Math.cos(angle) * (3 + waveNum * 0.3);
 			b.vy = Math.sin(angle) * (3 + waveNum * 0.3);
 			enemyBullets.push(b);
 			game.addChild(b);
 		}
-	} else if (waveNum % 3 === 1) {
-		// Sine wave bullets from left/right - easier: fewer bullets, slower, more vertical spacing
+	} else if (patternType === 1) {
+		// Sine wave bullets from both sides
 		for (var i = 0; i < 5 + Math.floor(waveNum * 0.7); i++) {
 			var b = new EnemyBullet();
 			b.x = boxX + 40;
 			b.y = boxY + 120 + i * 120;
 			b.vx = 4 + waveNum * 0.3;
 			b.vy = 0;
-			// Sine pattern
 			b.pattern = function (self, t) {
 				self.x += self.vx;
 				self.y += Math.sin((self.x + t * 2) / 80) * 5;
 			};
@@ -270,24 +270,59 @@
 			};
 			enemyBullets.push(b);
 			game.addChild(b);
 		}
-	} else {
-		// Falling bullets from above - easier: fewer, slower, more horizontal spacing
+	} else if (patternType === 2) {
+		// Falling zigzag bullets from above
 		for (var i = 0; i < 8 + Math.floor(waveNum * 1.2); i++) {
 			var b = new EnemyBullet();
 			b.x = boxX + 80 + (boxWidth - 160) * (i / (8 + Math.floor(waveNum * 1.2)));
 			b.y = boxY + 20;
 			b.vx = 0;
-			b.vy = 4 + waveNum * 0.2; // slower
-			// Zigzag
+			b.vy = 4 + waveNum * 0.2;
 			b.pattern = function (self, t) {
 				self.y += self.vy;
 				self.x += Math.sin(self.y / 60) * 3;
 			};
 			enemyBullets.push(b);
 			game.addChild(b);
 		}
+	} else if (patternType === 3) {
+		// Spiral pattern from center
+		var spiralCount = 18 + Math.floor(waveNum * 0.8);
+		for (var i = 0; i < spiralCount; i++) {
+			var b = new EnemyBullet();
+			b.x = 2048 / 2;
+			b.y = boxY + 40;
+			var baseAngle = Math.PI * 2 * i / spiralCount;
+			b.pattern = function (angleOffset) {
+				return function (self, t) {
+					var speed = 3.5 + waveNum * 0.25;
+					var angle = angleOffset + t * 0.07;
+					self.x = 2048 / 2 + Math.cos(angle) * speed * t;
+					self.y = boxY + 40 + Math.sin(angle) * speed * t;
+				};
+			}(baseAngle);
+			enemyBullets.push(b);
+			game.addChild(b);
+		}
+	} else if (patternType === 4) {
+		// Aimed shots at the player (soul), with some spread
+		var shots = 7 + Math.floor(waveNum * 0.5);
+		for (var i = 0; i < shots; i++) {
+			var b = new EnemyBullet();
+			b.x = 2048 / 2;
+			b.y = boxY + 40;
+			// Aim at soul, add spread
+			var dx = soul.x - b.x;
+			var dy = soul.y - b.y;
+			var angle = Math.atan2(dy, dx) + (i - (shots - 1) / 2) * 0.12;
+			var speed = 5 + waveNum * 0.2;
+			b.vx = Math.cos(angle) * speed;
+			b.vy = Math.sin(angle) * speed;
+			enemyBullets.push(b);
+			game.addChild(b);
+		}
 	}
 }
 // Game state
 var waveNum = 0;