/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	ending: 0,
	foundFragments: 0
});

/**** 
* Classes
****/ 
// --- Bullet Class ---
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('highlight', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.7
	});
	self.speed = 38;
	self.dirX = 0;
	self.dirY = 0;
	self.lastX = self.x;
	self.lastY = self.y;
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		self.x += self.dirX * self.speed;
		self.y += self.dirY * self.speed;
	};
	return self;
});
// --- Global arrays for enemies and bullets ---
// Door class (scene transition)
var Door = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('door', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.targetScene = "";
	self.highlight = null;
	self.showHighlight = function () {
		if (!self.highlight) {
			self.highlight = self.attachAsset('highlight', {
				anchorX: 0.5,
				anchorY: 0.5,
				alpha: 0.10
			});
		}
		self.highlight.visible = true;
	};
	self.hideHighlight = function () {
		if (self.highlight) self.highlight.visible = false;
	};
	return self;
});
// --- Enemy NPC Class (independent from other objects) ---
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('npc', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x8b1a1a
	});
	self.speed = 6 + Math.random() * 4;
	self.lastX = self.x;
	self.lastY = self.y;
	// Each enemy is an independent NPC, not derived from other objects
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		// Move toward the player independently
		var dx = player.x - self.x;
		var dy = player.y - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > 0) {
			self.x += self.speed * dx / dist;
			self.y += self.speed * dy / dist;
		}
	};
	return self;
});
// Memory Fragment class
var MemoryFragment = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('memoryFragment', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.highlight = null;
	self.showHighlight = function () {
		if (!self.highlight) {
			self.highlight = self.attachAsset('highlight', {
				anchorX: 0.5,
				anchorY: 0.5,
				alpha: 0.13
			});
		}
		self.highlight.visible = true;
	};
	self.hideHighlight = function () {
		if (self.highlight) self.highlight.visible = false;
	};
	return self;
});
// NPC class
var NPC = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('npc', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.dialogue = [];
	self.dialogueIndex = 0;
	self.name = "";
	self.interacted = false;
	self.highlight = null;
	// Show highlight when player is near
	self.showHighlight = function () {
		if (!self.highlight) {
			self.highlight = self.attachAsset('highlight', {
				anchorX: 0.5,
				anchorY: 0.5,
				alpha: 0.18
			});
		}
		self.highlight.visible = true;
	};
	self.hideHighlight = function () {
		if (self.highlight) self.highlight.visible = false;
	};
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var sprite = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 18;
	self.targetX = self.x;
	self.targetY = self.y;
	self.moving = false;
	// Move towards target
	self.update = function () {
		if (!self.moving) return;
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < self.speed) {
			self.x = self.targetX;
			self.y = self.targetY;
			self.moving = false;
		} else {
			self.x += self.speed * dx / dist;
			self.y += self.speed * dy / dist;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xfaf7f2
});

/**** 
* Game Code
****/ 
// --- Global arrays for enemies and bullets ---
// --- State ---
/*
We use simple shapes for the sketchbook-like look. 
- 'player': the protagonist, a hand-drawn ellipse.
- 'npc': townsfolk, a box with a different color.
- 'memoryFragment': symbolic puzzle piece, a star-shaped box.
- 'door': a rectangle for scene transitions.
- 'bgTown': a large, pale rectangle as the background.
- 'highlight': a transparent overlay for interactable objects.
*/
var enemies = [];
var bullets = [];
var player;
var npcs = [];
var memoryFragments = [];
var doors = [];
var currentScene = "town";
var dialogueBox = null;
var dialogueText = null;
var choiceButtons = [];
var infoText = null;
var canMove = true;
var lastNearObject = null;
var foundFragments = storage.foundFragments || 0;
var totalFragments = 3;
var ending = storage.ending || 0;
// --- Level Progression ---
var currentLevel = 1;
var enemiesDefeated = 0;
var enemiesToDefeat = 10; // Level 1 goal
function nextLevel() {
	currentLevel++;
	if (currentLevel === 2) {
		enemiesToDefeat = 20;
		enemiesDefeated = 0;
		showInfo("Level 2: Defeat 20 enemies!", 3000);
		// Optionally, respawn some memory fragments or change scene visuals here
	} else {
		// If more levels, add here
		// For now, after level 2, allow ending as before
	}
}
// --- GUI ---
function showInfo(msg, duration) {
	if (!infoText) {
		infoText = new Text2(msg, {
			size: 80,
			fill: 0x444444
		});
		infoText.anchor.set(0.5, 0);
		LK.gui.top.addChild(infoText);
	}
	infoText.setText(msg);
	infoText.visible = true;
	if (duration) {
		LK.setTimeout(function () {
			if (infoText) infoText.visible = false;
		}, duration);
	}
}
// --- Scene Setup ---
function setupTownScene() {
	// Clear previous
	game.removeChildren();
	npcs = [];
	memoryFragments = [];
	doors = [];
	lastNearObject = null;
	// --- Reset level state ---
	enemies = [];
	bullets = [];
	if (currentLevel === 1) {
		enemiesToDefeat = 10;
		enemiesDefeated = 0;
	} else if (currentLevel === 2) {
		enemiesToDefeat = 20;
		enemiesDefeated = 0;
	}
	// War-torn background
	var warBg = LK.getAsset('background', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	game.addChild(warBg);
	// Overlay town sketchbook background for style
	var bg = LK.getAsset('bgTown', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0,
		alpha: 0.55 // Let the war background show through
	});
	game.addChild(bg);
	// Player
	player = new Player();
	player.x = 1024;
	player.y = 2000;
	game.addChild(player);
	// NPCs
	var npc1 = new NPC();
	npc1.x = 700;
	npc1.y = 1500;
	npc1.name = "Caretaker";
	npc1.dialogue = ["You look lost. The town remembers you, even if you don't remember it.", "Find the fragments of your memory. They are hidden in plain sight.", "Come back when you remember more."];
	npcs.push(npc1);
	game.addChild(npc1);
	var npc2 = new NPC();
	npc2.x = 1400;
	npc2.y = 1100;
	npc2.name = "Child";
	npc2.dialogue = ["Will you play with me? Or are you too busy remembering?", "Sometimes, forgetting is easier than facing the truth."];
	npcs.push(npc2);
	game.addChild(npc2);
	// Memory Fragments
	var frag1 = new MemoryFragment();
	frag1.x = 400;
	frag1.y = 800;
	memoryFragments.push(frag1);
	game.addChild(frag1);
	var frag2 = new MemoryFragment();
	frag2.x = 1700;
	frag2.y = 1800;
	memoryFragments.push(frag2);
	game.addChild(frag2);
	var frag3 = new MemoryFragment();
	frag3.x = 1200;
	frag3.y = 2500;
	memoryFragments.push(frag3);
	game.addChild(frag3);
	// Door to ending
	var door = new Door();
	door.x = 1024;
	door.y = 400;
	door.targetScene = "ending";
	doors.push(door);
	game.addChild(door);
	// Show info
	showInfo("Explore the town. Tap to move. Find your memories.", 3000);
}
// --- Dialogue System ---
function showDialogue(npc) {
	canMove = false;
	if (!dialogueBox) {
		dialogueBox = new Container();
		var box = LK.getAsset('bgTown', {
			width: 1600,
			height: 400,
			color: 0xffffff,
			anchorX: 0.5,
			anchorY: 0.5,
			x: 1024,
			y: 2200
		});
		box.alpha = 0.92;
		dialogueBox.addChild(box);
		dialogueText = new Text2("", {
			size: 70,
			fill: 0x222222
		});
		dialogueText.anchor.set(0.5, 0.5);
		dialogueText.x = 1024;
		dialogueText.y = 2200;
		dialogueBox.addChild(dialogueText);
		LK.gui.bottom.addChild(dialogueBox);
	}
	dialogueBox.visible = true;
	dialogueText.setText(npc.name + ": " + npc.dialogue[npc.dialogueIndex]);
	// Next dialogue on tap
	dialogueBox.down = function (x, y, obj) {
		npc.dialogueIndex++;
		if (npc.dialogueIndex >= npc.dialogue.length) {
			npc.dialogueIndex = 0;
			dialogueBox.visible = false;
			canMove = true;
		} else {
			dialogueText.setText(npc.name + ": " + npc.dialogue[npc.dialogueIndex]);
		}
		LK.getSound('choice').play();
	};
}
// --- Choice System ---
function showChoice(msg, choices, onSelect) {
	canMove = false;
	// Remove old
	for (var i = 0; i < choiceButtons.length; ++i) {
		if (choiceButtons[i].parent) choiceButtons[i].parent.removeChild(choiceButtons[i]);
	}
	choiceButtons = [];
	// Message
	if (!dialogueBox) {
		dialogueBox = new Container();
		var box = LK.getAsset('bgTown', {
			width: 1600,
			height: 400,
			color: 0xffffff,
			anchorX: 0.5,
			anchorY: 0.5,
			x: 1024,
			y: 2200
		});
		box.alpha = 0.92;
		dialogueBox.addChild(box);
		dialogueText = new Text2("", {
			size: 70,
			fill: 0x222222
		});
		dialogueText.anchor.set(0.5, 0.5);
		dialogueText.x = 1024;
		dialogueText.y = 2200;
		dialogueBox.addChild(dialogueText);
		LK.gui.bottom.addChild(dialogueBox);
	}
	dialogueBox.visible = true;
	dialogueText.setText(msg);
	// Buttons
	for (var i = 0; i < choices.length; ++i) {
		var btn = new Text2(choices[i], {
			size: 70,
			fill: 0x3A3A3A
		});
		btn.anchor.set(0.5, 0.5);
		btn.x = 1024;
		btn.y = 2400 + i * 120;
		btn.interactive = true;
		(function (idx) {
			btn.down = function (x, y, obj) {
				dialogueBox.visible = false;
				for (var j = 0; j < choiceButtons.length; ++j) {
					if (choiceButtons[j].parent) choiceButtons[j].parent.removeChild(choiceButtons[j]);
				}
				choiceButtons = [];
				canMove = true;
				LK.getSound('choice').play();
				onSelect(idx);
			};
		})(i);
		LK.gui.bottom.addChild(btn);
		choiceButtons.push(btn);
	}
}
// --- Memory Fragment Collection ---
function collectFragment(fragment) {
	if (fragment.collected) return;
	fragment.collected = true;
	foundFragments++;
	storage.foundFragments = foundFragments;
	LK.getSound('memoryFound').play();
	tween(fragment, {
		alpha: 0,
		scaleX: 2,
		scaleY: 2
	}, {
		duration: 600,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			if (fragment.parent) fragment.parent.removeChild(fragment);
		}
	});
	showInfo("You found a memory fragment! (" + foundFragments + "/" + totalFragments + ")", 2000);
	if (foundFragments === totalFragments) {
		showInfo("All fragments found. The door is open.", 3000);
	}
}
// --- Ending Scene ---
function setupEndingScene() {
	game.removeChildren();
	if (dialogueBox) dialogueBox.visible = false;
	for (var i = 0; i < choiceButtons.length; ++i) {
		if (choiceButtons[i].parent) choiceButtons[i].parent.removeChild(choiceButtons[i]);
	}
	choiceButtons = [];
	// Background
	var bg = LK.getAsset('bgTown', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0,
		color: 0xeaeaea
	});
	game.addChild(bg);
	// Ending text
	var endingText = new Text2("", {
		size: 110,
		fill: 0x222222
	});
	endingText.anchor.set(0.5, 0.5);
	endingText.x = 1024;
	endingText.y = 1200;
	if (foundFragments === totalFragments) {
		endingText.setText("You remember everything.\nThe town is at peace.\n\nThank you for playing.");
		storage.ending = 2;
	} else if (foundFragments > 0) {
		endingText.setText("Some memories return, but many are lost.\nThe town remains a mystery.\n\nThank you for playing.");
		storage.ending = 1;
	} else {
		endingText.setText("You leave, still lost.\nThe town fades behind you.\n\nThank you for playing.");
		storage.ending = 0;
	}
	game.addChild(endingText);
	// Show "You Win" after a short delay
	LK.setTimeout(function () {
		LK.showYouWin();
	}, 2500);
}
// --- Music ---
LK.playMusic('dream', {
	fade: {
		start: 0,
		end: 0.7,
		duration: 1200
	}
});
// --- Start Scene ---
setupTownScene();
// --- Game Move Handler ---
game.move = function (x, y, obj) {
	if (!canMove) return;
	// Prevent moving into top left menu area
	if (x < 100 && y < 100) return;
	// Move player
	player.targetX = x;
	player.targetY = y;
	player.moving = true;
};
// --- Game Down Handler (for interaction) ---
game.down = function (x, y, obj) {
	if (!canMove) return;
	// --- Gun shooting ---
	// Don't shoot if clicking in top left menu area
	if (!(x < 100 && y < 100)) {
		// Shoot a bullet towards (x, y)
		var bullet = new Bullet();
		bullet.x = player.x;
		bullet.y = player.y;
		var dx = x - player.x;
		var dy = y - player.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist === 0) {
			bullet.dirX = 0;
			bullet.dirY = -1;
		} else {
			bullet.dirX = dx / dist;
			bullet.dirY = dy / dist;
		}
		bullets.push(bullet);
		game.addChild(bullet);
	}
	// Check for nearby interactables
	var nearObj = null;
	// NPCs
	for (var i = 0; i < npcs.length; ++i) {
		var npc = npcs[i];
		var dx = npc.x - player.x;
		var dy = npc.y - player.y;
		if (dx * dx + dy * dy < 300 * 300) {
			nearObj = npc;
			break;
		}
	}
	// Memory Fragments
	if (!nearObj) {
		for (var i = 0; i < memoryFragments.length; ++i) {
			var frag = memoryFragments[i];
			if (frag.collected) continue;
			var dx = frag.x - player.x;
			var dy = frag.y - player.y;
			if (dx * dx + dy * dy < 180 * 180) {
				nearObj = frag;
				break;
			}
		}
	}
	// Door
	if (!nearObj && foundFragments === totalFragments) {
		for (var i = 0; i < doors.length; ++i) {
			var door = doors[i];
			var dx = door.x - player.x;
			var dy = door.y - player.y;
			if (dx * dx + dy * dy < 220 * 220) {
				nearObj = door;
				break;
			}
		}
	}
	// Interact
	if (nearObj) {
		if (nearObj instanceof NPC) {
			showDialogue(nearObj);
		} else if (nearObj instanceof MemoryFragment) {
			collectFragment(nearObj);
		} else if (nearObj instanceof Door) {
			// Ending
			setupEndingScene();
		}
	}
};
// --- Enemy Spawning ---
if (!game.enemySpawnTimer) {
	game.enemySpawnTimer = LK.setInterval(function () {
		if (currentScene !== "town") return;
		// Limit number of enemies
		if (enemies.length < 8 + Math.floor(foundFragments * 2)) {
			var enemy = new Enemy();
			// Spawn at random edge
			var edge = Math.floor(Math.random() * 4);
			if (edge === 0) {
				// top
				enemy.x = Math.random() * 2048;
				enemy.y = -100;
			} else if (edge === 1) {
				// bottom
				enemy.x = Math.random() * 2048;
				enemy.y = 2732 + 100;
			} else if (edge === 2) {
				// left
				enemy.x = -100;
				enemy.y = Math.random() * 2732;
			} else {
				// right
				enemy.x = 2048 + 100;
				enemy.y = Math.random() * 2732;
			}
			enemies.push(enemy);
			game.addChild(enemy);
		}
	}, 1200);
}
// --- Game Update ---
game.update = function () {
	// Player update
	if (player && player.update) player.update();
	// --- Bullets update and cleanup ---
	for (var i = bullets.length - 1; i >= 0; --i) {
		var bullet = bullets[i];
		if (bullet.update) bullet.update();
		// Remove if out of bounds
		if (bullet.x < -200 || bullet.x > 2048 + 200 || bullet.y < -200 || bullet.y > 2732 + 200) {
			if (bullet.parent) bullet.parent.removeChild(bullet);
			bullets.splice(i, 1);
			continue;
		}
	}
	// --- Enemies update, collision with player, and bullet collision ---
	for (var i = enemies.length - 1; i >= 0; --i) {
		var enemy = enemies[i];
		if (enemy.update) enemy.update();
		// Check collision with player (game over)
		var dx = enemy.x - player.x;
		var dy = enemy.y - player.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < 90) {
			// Game over
			LK.effects.flashScreen(0xff0000, 1200);
			LK.showGameOver();
			return;
		}
		// Check collision with bullets
		for (var j = bullets.length - 1; j >= 0; --j) {
			var bullet = bullets[j];
			var bdx = enemy.x - bullet.x;
			var bdy = enemy.y - bullet.y;
			var bdist = Math.sqrt(bdx * bdx + bdy * bdy);
			if (bdist < 80) {
				// Remove enemy and bullet
				if (enemy.parent) enemy.parent.removeChild(enemy);
				if (bullet.parent) bullet.parent.removeChild(bullet);
				enemies.splice(i, 1);
				bullets.splice(j, 1);
				// --- Level Progression: Count defeated enemies ---
				enemiesDefeated++;
				showInfo("Enemies defeated: " + enemiesDefeated + "/" + enemiesToDefeat, 1200);
				// Check for level win
				if (enemiesDefeated >= enemiesToDefeat) {
					if (currentLevel === 1) {
						showInfo("Level 1 complete! Advancing...", 2500);
						LK.setTimeout(function () {
							nextLevel();
						}, 2000);
					} else if (currentLevel === 2) {
						showInfo("Level 2 complete! All enemies defeated!", 2500);
						// Optionally, allow ending or further progression
						// For now, open the door if all fragments are found
					}
				}
				break;
			}
		}
	}
	// --- Endless: Only win if all enemies are gone and all fragments found ---
	if (foundFragments === totalFragments && enemiesDefeated >= enemiesToDefeat && enemies.length === 0) {
		// Door is open, allow ending
		for (var i = 0; i < doors.length; ++i) {
			doors[i].showHighlight();
		}
	}
	// Highlight nearby interactables
	var nearest = null;
	var minDist = 99999;
	// NPCs
	for (var i = 0; i < npcs.length; ++i) {
		var npc = npcs[i];
		var dx = npc.x - player.x;
		var dy = npc.y - player.y;
		var dist = dx * dx + dy * dy;
		if (dist < 300 * 300 && dist < minDist) {
			nearest = npc;
			minDist = dist;
		}
		npc.hideHighlight();
	}
	// Memory Fragments
	for (var i = 0; i < memoryFragments.length; ++i) {
		var frag = memoryFragments[i];
		if (frag.collected) continue;
		var dx = frag.x - player.x;
		var dy = frag.y - player.y;
		var dist = dx * dx + dy * dy;
		if (dist < 180 * 180 && dist < minDist) {
			nearest = frag;
			minDist = dist;
		}
		frag.hideHighlight();
	}
	// Door
	if (foundFragments === totalFragments && enemies.length === 0) {
		for (var i = 0; i < doors.length; ++i) {
			var door = doors[i];
			var dx = door.x - player.x;
			var dy = door.y - player.y;
			var dist = dx * dx + dy * dy;
			if (dist < 220 * 220 && dist < minDist) {
				nearest = door;
				minDist = dist;
			}
			door.hideHighlight();
		}
	}
	// Show highlight
	if (nearest && nearest.showHighlight) nearest.showHighlight();
	// Store last near object
	lastNearObject = nearest;
};