/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ // Bird class var Bird = Container.expand(function () { var self = Container.call(this); // Bird type: 'red', 'blue', 'yellow' self.type = 'red'; self.isLaunched = false; self.isActive = false; self.velocity = { x: 0, y: 0 }; self.radius = 60; // default, will be set by asset self.gravity = 1.2; self.friction = 0.995; self.bounce = 0.45; self.hasAbility = false; // For future bird abilities // Attach asset based on type function setAsset() { var assetId = 'birdRed'; if (self.type === 'blue') assetId = 'birdBlue'; if (self.type === 'yellow') assetId = 'birdYellow'; var asset = self.attachAsset(assetId, { anchorX: 0.5, anchorY: 0.5 }); self.radius = asset.width / 2; } self.setType = function (type) { self.type = type; setAsset(); }; setAsset(); // Called every tick self.update = function () { if (!self.isLaunched) return; // Physics self.velocity.y += self.gravity; self.x += self.velocity.x; self.y += self.velocity.y; self.velocity.x *= self.friction; self.velocity.y *= self.friction; // Ground collision if (self.y + self.radius > groundY) { self.y = groundY - self.radius; if (Math.abs(self.velocity.y) > 2) { self.velocity.y *= -self.bounce; self.velocity.x *= self.friction; } else { self.velocity.y = 0; self.velocity.x *= 0.95; if (Math.abs(self.velocity.x) < 1) { self.velocity.x = 0; self.isActive = false; } } } }; // Ability placeholder (for future expansion) self.activateAbility = function () { // e.g. blue splits, yellow speeds up // Not implemented in MVP }; return self; }); // Block class var Block = Container.expand(function () { var self = Container.call(this); self.type = 'wood'; // 'wood', 'stone', 'glass' self.width = 180; self.height = 60; self.isStatic = false; self.health = 2; self.velocity = { x: 0, y: 0 }; self.gravity = 1.2; self.friction = 0.98; self.bounce = 0.2; function setAsset() { var assetId = 'blockWood'; if (self.type === 'stone') assetId = 'blockStone'; if (self.type === 'glass') assetId = 'blockGlass'; var asset = self.attachAsset(assetId, { anchorX: 0.5, anchorY: 0.5 }); self.width = asset.width; self.height = asset.height; } self.setType = function (type) { self.type = type; setAsset(); if (type === 'wood') self.health = 2; if (type === 'stone') self.health = 4; if (type === 'glass') self.health = 1; }; setAsset(); self.update = function () { if (self.isStatic) return; self.velocity.y += self.gravity; self.x += self.velocity.x; self.y += self.velocity.y; self.velocity.x *= self.friction; self.velocity.y *= self.friction; // Ground collision if (self.y + self.height / 2 > groundY) { self.y = groundY - self.height / 2; if (Math.abs(self.velocity.y) > 2) { self.velocity.y *= -self.bounce; self.velocity.x *= self.friction; } else { self.velocity.y = 0; self.velocity.x *= 0.95; if (Math.abs(self.velocity.x) < 0.5) { self.velocity.x = 0; } } } }; self.hit = function (force) { self.health -= force; if (self.health <= 0) { LK.getSound('blockBreak').play(); tween(self, { alpha: 0 }, { duration: 200, onFinish: function onFinish() { self.destroy(); } }); } }; return self; }); // Pig class var Pig = Container.expand(function () { var self = Container.call(this); var asset = self.attachAsset('pig', { anchorX: 0.5, anchorY: 0.5 }); self.radius = asset.width / 2; self.isAlive = true; self.health = 1; // For MVP, 1 hit = dead self.hit = function (force) { if (!self.isAlive) return; self.health -= 1; if (self.health <= 0) { self.isAlive = false; LK.getSound('pigPop').play(); tween(self, { alpha: 0 }, { duration: 300, onFinish: function onFinish() { self.destroy(); } }); } }; return self; }); // Slingshot class var Slingshot = Container.expand(function () { var self = Container.call(this); // Base var base = self.attachAsset('slingshotBase', { anchorX: 0.5, anchorY: 1 }); // Band (drawn dynamically in game code) self.band = LK.getAsset('slingshotBand', { anchorX: 0.5, anchorY: 0 }); self.band.visible = false; self.addChild(self.band); return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ // No title, no description // Always backgroundColor is black backgroundColor: 0x000000 }); /**** * Game Code ****/ // Music // Sounds // Ground // Blocks // Slingshot // Pigs // Birds // --- Global variables --- var groundY = 2732 - 80; // y position of ground var birds = []; var pigs = []; var blocks = []; var currentBird = null; var slingshot = null; var isDragging = false; var dragStart = { x: 0, y: 0 }; var dragEnd = { x: 0, y: 0 }; var maxDragDist = 350; var shotsLeft = 0; var level = 1; var score = 0; var scoreTxt = null; var shotsTxt = null; var levelTxt = null; var ground = null; var bandStart = { x: 0, y: 0 }; var bandEnd = { x: 0, y: 0 }; var bandVisible = false; var winTimeout = null; // --- GUI --- scoreTxt = new Text2('Score: 0', { size: 90, fill: "#fff" }); scoreTxt.anchor.set(0.5, 0); LK.gui.top.addChild(scoreTxt); shotsTxt = new Text2('Birds: 0', { size: 70, fill: "#fff" }); shotsTxt.anchor.set(0.5, 0); LK.gui.topRight.addChild(shotsTxt); levelTxt = new Text2('Level 1', { size: 70, fill: "#fff" }); levelTxt.anchor.set(0.5, 0); LK.gui.top.addChild(levelTxt); // --- Ground --- ground = LK.getAsset('ground', { anchorX: 0, anchorY: 0 }); ground.x = 0; ground.y = groundY; game.addChild(ground); // --- Slingshot --- slingshot = new Slingshot(); slingshot.x = 350; slingshot.y = groundY; game.addChild(slingshot); // --- Level Setup --- function setupLevel(lvl) { // Clear previous for (var i = birds.length - 1; i >= 0; i--) { birds[i].destroy(); birds.splice(i, 1); } for (var i = pigs.length - 1; i >= 0; i--) { pigs[i].destroy(); pigs.splice(i, 1); } for (var i = blocks.length - 1; i >= 0; i--) { blocks[i].destroy(); blocks.splice(i, 1); } if (currentBird) { currentBird.destroy(); currentBird = null; } if (winTimeout) { LK.clearTimeout(winTimeout); winTimeout = null; } // Level text levelTxt.setText('Level ' + lvl); // Birds for this level var birdTypes = ['red', 'blue', 'yellow', 'red', 'blue']; shotsLeft = birdTypes.length; shotsTxt.setText('Birds: ' + shotsLeft); for (var i = 0; i < birdTypes.length; i++) { var b = new Bird(); b.setType(birdTypes[i]); b.x = 200 - i * 60; b.y = groundY - 60; birds.push(b); game.addChild(b); } // Pigs and blocks arrangement // Level 1: 2 pigs, 2 wood blocks // Level 2: 3 pigs, 2 wood, 2 stone // Level 3: 4 pigs, 2 wood, 2 stone, 2 glass // Level 4+: 5 pigs, 3 wood, 3 stone, 2 glass var pigCount = Math.min(2 + lvl, 5); var blockCount = Math.min(2 + lvl, 8); // Place pigs for (var i = 0; i < 3; i++) { var p = new Pig(); p.x = 1200 + i * 120; // Place pigs higher so they are visible above the ground and blocks p.y = groundY - 300 - i * 120; pigs.push(p); game.addChild(p); } // Place blocks for (var i = 0; i < blockCount; i++) { var bl = new Block(); if (i % 3 === 0) bl.setType('wood');else if (i % 3 === 1) bl.setType('stone');else bl.setType('glass'); bl.x = 1150 + i % 5 * 120; bl.y = groundY - 60 - Math.floor(i / 5) * 80; blocks.push(bl); game.addChild(bl); } // Place first bird on slingshot nextBird(); } // --- Bird Launching --- function nextBird() { if (currentBird) { currentBird.destroy(); currentBird = null; } if (birds.length === 0) { // Out of birds, check for loss checkWinOrLose(); return; } currentBird = birds.shift(); currentBird.x = slingshot.x; currentBird.y = slingshot.y - 80; currentBird.isLaunched = false; currentBird.isActive = false; currentBird.velocity = { x: 0, y: 0 }; shotsLeft = birds.length + 1; shotsTxt.setText('Birds: ' + shotsLeft); bandVisible = false; slingshot.band.visible = false; } // --- Drag and Launch --- game.down = function (x, y, obj) { // Only allow drag if current bird is not launched and touch is near bird if (!currentBird || currentBird.isLaunched) return; var dx = x - currentBird.x; var dy = y - currentBird.y; var dist = Math.sqrt(dx * dx + dy * dy); if (dist < currentBird.radius + 40) { isDragging = true; dragStart.x = x; dragStart.y = y; dragEnd.x = x; dragEnd.y = y; bandVisible = true; slingshot.band.visible = true; } }; game.move = function (x, y, obj) { if (!isDragging || !currentBird || currentBird.isLaunched) return; // Limit drag distance var dx = x - slingshot.x; var dy = y - (slingshot.y - 80); var dist = Math.sqrt(dx * dx + dy * dy); if (dist > maxDragDist) { var ratio = maxDragDist / dist; dx *= ratio; dy *= ratio; } dragEnd.x = slingshot.x + dx; dragEnd.y = slingshot.y - 80 + dy; currentBird.x = dragEnd.x; currentBird.y = dragEnd.y; // Update band bandStart.x = slingshot.x; bandStart.y = slingshot.y - 80; bandEnd.x = currentBird.x; bandEnd.y = currentBird.y; updateBand(); }; game.up = function (x, y, obj) { if (!isDragging || !currentBird || currentBird.isLaunched) return; isDragging = false; bandVisible = false; slingshot.band.visible = false; // Calculate launch velocity var dx = slingshot.x - currentBird.x; var dy = slingshot.y - 80 - currentBird.y; // Make slingshot more powerful by increasing maxPower and velocity scaling var power = Math.sqrt(dx * dx + dy * dy); var maxPower = 48; // was 32 var minPower = 8; var scale = Math.min(maxPower, Math.max(minPower, power / 8)); // was /10 currentBird.velocity.x = dx / 8 * scale / 8; // was /10 currentBird.velocity.y = dy / 8 * scale / 8; // was /10 currentBird.isLaunched = true; currentBird.isActive = true; LK.getSound('birdLaunch').play(); }; // --- Band Drawing --- function updateBand() { if (!bandVisible) { slingshot.band.visible = false; return; } var dx = bandEnd.x - bandStart.x; var dy = bandEnd.y - bandStart.y; var dist = Math.sqrt(dx * dx + dy * dy); slingshot.band.height = dist; slingshot.band.rotation = Math.atan2(dy, dx) - Math.PI / 2; slingshot.band.x = bandStart.x; slingshot.band.y = bandStart.y; slingshot.band.visible = true; } // --- Physics and Collisions --- function checkCollisions() { // Bird with blocks if (currentBird && currentBird.isLaunched && currentBird.isActive) { for (var i = blocks.length - 1; i >= 0; i--) { var bl = blocks[i]; if (!bl) continue; // AABB collision var bx = bl.x, by = bl.y, bw = bl.width, bh = bl.height; var cx = currentBird.x, cy = currentBird.y, cr = currentBird.radius; if (cx + cr > bx - bw / 2 && cx - cr < bx + bw / 2 && cy + cr > by - bh / 2 && cy - cr < by + bh / 2) { // Hit! var force = Math.max(1, Math.abs(currentBird.velocity.x) + Math.abs(currentBird.velocity.y)) / 8; bl.hit(force); // Bounce bird if (Math.abs(currentBird.velocity.x) > Math.abs(currentBird.velocity.y)) { currentBird.velocity.x *= -0.5; } else { currentBird.velocity.y *= -0.5; } } } // Bird with pigs for (var i = pigs.length - 1; i >= 0; i--) { var p = pigs[i]; if (!p || !p.isAlive) continue; var dx = currentBird.x - p.x; var dy = currentBird.y - p.y; var dist = Math.sqrt(dx * dx + dy * dy); if (dist < currentBird.radius + p.radius - 10) { // Hit! p.hit(1); score += 500; scoreTxt.setText('Score: ' + score); // Bounce bird currentBird.velocity.x *= -0.5; currentBird.velocity.y *= -0.5; } } } // Blocks with pigs for (var i = blocks.length - 1; i >= 0; i--) { var bl = blocks[i]; if (!bl) continue; for (var j = pigs.length - 1; j >= 0; j--) { var p = pigs[j]; if (!p || !p.isAlive) continue; var bx = bl.x, by = bl.y, bw = bl.width, bh = bl.height; var px = p.x, py = p.y, pr = p.radius; if (px + pr > bx - bw / 2 && px - pr < bx + bw / 2 && py + pr > by - bh / 2 && py - pr < by + bh / 2) { // Hit! p.hit(1); score += 500; scoreTxt.setText('Score: ' + score); } } } } // --- Win/Lose Check --- function checkWinOrLose() { // Win: all pigs dead var pigsLeft = 0; for (var i = 0; i < pigs.length; i++) { if (pigs[i] && pigs[i].isAlive) pigsLeft++; } if (pigsLeft === 0) { // Win! score += shotsLeft * 1000; scoreTxt.setText('Score: ' + score); winTimeout = LK.setTimeout(function () { LK.showYouWin(); }, 1200); return; } // Lose: no birds left and pigs remain if (birds.length === 0 && (!currentBird || !currentBird.isActive)) { winTimeout = LK.setTimeout(function () { LK.showGameOver(); }, 1200); } } // --- Main Update --- game.update = function () { // Update birds if (currentBird) currentBird.update(); for (var i = 0; i < birds.length; i++) birds[i].update(); // Update blocks for (var i = 0; i < blocks.length; i++) blocks[i].update(); // Check collisions checkCollisions(); // Remove dead pigs/blocks for (var i = pigs.length - 1; i >= 0; i--) { if (pigs[i] && !pigs[i].isAlive) { pigs.splice(i, 1); } } for (var i = blocks.length - 1; i >= 0; i--) { if (blocks[i] && blocks[i].health <= 0) { blocks.splice(i, 1); } } // If bird is stopped, go to next bird if (currentBird && currentBird.isLaunched && !currentBird.isActive) { nextBird(); checkWinOrLose(); } }; // --- Start Game --- score = 0; scoreTxt.setText('Score: 0'); setupLevel(level); // --- Music --- LK.playMusic('bgmusic', { fade: { start: 0, end: 0.7, duration: 1000 } });