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#SpaceDog
#AsteroidShooter
#ArcadeAction
#DogInSpace
#HighScore
Creation History
User prompt
Give the larger asteroid a thirty percent spawn rate
User prompt
Make large asteroids take ten hits to destroy
User prompt
Make it so that rarely, large asteroids, which give out a hundred points and an extra life, will spawn, but if they hit you, you lose all of your lives.
User prompt
Make laser fire every .3 seconds
User prompt
Give the player 5 lives
User prompt
Make the Laser fire every 2 seconds
User prompt
Make the asteroids slower and give out 10 points each when destroyed
User prompt
Make the background more space-like
User prompt
Add the ability to go left and right
Code edit (1 edits merged)
Please save this source code
User prompt
Space Dog: Asteroid Blaster
Initial prompt
Make a game where you're a dog in space. Shooting asteroids.
/****
* Plugins
****/
var tween = LK.import("@upit/tween.v1");
/****
* Classes
****/
// Asteroid
var Asteroid = Container.expand(function () {
var self = Container.call(this);
var asteroid = self.attachAsset('asteroid', {
anchorX: 0.5,
anchorY: 0.5
});
// Randomize rotation
asteroid.rotation = Math.random() * Math.PI * 2;
// Speed and direction
self.speedY = 3 + Math.random() * 2; // 3-5 px/frame (slower)
self.speedX = (Math.random() - 0.5) * 2; // -1 to 1 px/frame (slower)
// For collision
self.radius = asteroid.width * 0.5;
// For rotation animation
self.rotSpeed = (Math.random() - 0.5) * 0.04;
// Update method
self.update = function () {
self.y += self.speedY;
self.x += self.speedX;
asteroid.rotation += self.rotSpeed;
};
return self;
});
// Dog Ship (Player)
var DogShip = Container.expand(function () {
var self = Container.call(this);
var ship = self.attachAsset('dogShip', {
anchorX: 0.5,
anchorY: 0.5
});
// For collision, use the container itself
self.radius = ship.width * 0.5;
// For drag effect
self.isDragging = false;
return self;
});
// Large Asteroid (rare, big, dangerous)
var LargeAsteroid = Container.expand(function () {
var self = Container.call(this);
var asteroid = self.attachAsset('asteroid', {
anchorX: 0.5,
anchorY: 0.5,
scaleX: 2.1,
scaleY: 2.1
});
// Randomize rotation
asteroid.rotation = Math.random() * Math.PI * 2;
// Slower speed, but still moves
self.speedY = 2 + Math.random() * 1.5; // 2-3.5 px/frame
self.speedX = (Math.random() - 0.5) * 1.2; // -0.6 to 0.6 px/frame
self.radius = asteroid.width * 0.5 * 2.1; // scale radius
self.rotSpeed = (Math.random() - 0.5) * 0.025;
self.isLargeAsteroid = true;
self.update = function () {
self.y += self.speedY;
self.x += self.speedX;
asteroid.rotation += self.rotSpeed;
};
return self;
});
// Laser
var Laser = Container.expand(function () {
var self = Container.call(this);
var laser = self.attachAsset('laser', {
anchorX: 0.5,
anchorY: 0.5
});
self.speedY = -22; // Fast upward
// For collision
self.radius = laser.width * 0.5;
self.update = function () {
self.y += self.speedY;
};
return self;
});
/****
* Initialize Game
****/
var game = new LK.Game({
backgroundColor: 0x0a0a1a
});
/****
* Game Code
****/
// Play background music
// Spaceship (dog ship)
// Asteroid
// Laser
// Sound for shooting
// Sound for asteroid destroyed
// Music (background)
LK.playMusic('spaceMusic');
// --- Space background: animated twinkling stars ---
var starCount = 60;
var stars = [];
for (var i = 0; i < starCount; i++) {
var star = LK.getAsset('centerCircle', {
anchorX: 0.5,
anchorY: 0.5,
scaleX: 0.18 + Math.random() * 0.12,
scaleY: 0.18 + Math.random() * 0.12,
x: Math.random() * 2048,
y: Math.random() * 2732
});
star.alpha = 0.5 + Math.random() * 0.5;
star._twinkleSpeed = 0.008 + Math.random() * 0.012;
star._twinklePhase = Math.random() * Math.PI * 2;
stars.push(star);
// Add behind everything
game.addChildAt(star, 0);
}
// Score display
var scoreTxt = new Text2('0', {
size: 120,
fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Game variables
var dogShip;
var asteroids = [];
var lasers = [];
var dragNode = null;
var lastGameOver = false;
var asteroidSpawnTick = 0;
// Player lives
var lives = 5;
// Lives display
var livesTxt = new Text2('Lives: 5', {
size: 90,
fill: "#fff"
});
livesTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(livesTxt);
livesTxt.y = 120; // Place below score
// Place dog ship at bottom center, above bottom edge
dogShip = new DogShip();
game.addChild(dogShip);
dogShip.x = 2048 / 2;
dogShip.y = 2732 - 320;
// Prevent dogShip from going off screen
function clampShipPosition() {
var margin = dogShip.radius + 30;
if (dogShip.x < margin) dogShip.x = margin;
if (dogShip.x > 2048 - margin) dogShip.x = 2048 - margin;
if (dogShip.y < margin + 120) dogShip.y = margin + 120; // Don't go under score
if (dogShip.y > 2732 - margin) dogShip.y = 2732 - margin;
}
// Touch/mouse drag to move dog ship
function handleMove(x, y, obj) {
if (dragNode) {
dragNode.x = x;
dragNode.y = y;
clampShipPosition();
}
}
game.move = handleMove;
game.down = function (x, y, obj) {
// Only start drag if touch is on the ship
var dx = x - dogShip.x;
var dy = y - dogShip.y;
if (dx * dx + dy * dy < dogShip.radius * dogShip.radius) {
dragNode = dogShip;
handleMove(x, y, obj);
}
};
game.up = function (x, y, obj) {
dragNode = null;
};
// Laser will now fire automatically every 2 seconds (see interval below)
// For mobile, treat down as tap if not dragging
game.down = function (x, y, obj) {
var dx = x - dogShip.x;
var dy = y - dogShip.y;
if (dx * dx + dy * dy < dogShip.radius * dogShip.radius) {
dragNode = dogShip;
handleMove(x, y, obj);
} else {
// Not on ship: tap left/right to move
// Define left/right/center regions
var leftEdge = 0;
var rightEdge = 2048;
var centerWidth = 400;
var leftRegion = (rightEdge - centerWidth) / 2;
var rightRegion = (rightEdge + centerWidth) / 2;
if (x < leftRegion) {
// Move ship left by a fixed amount
dogShip.x -= 220;
clampShipPosition();
} else if (x > rightRegion) {
// Move ship right by a fixed amount
dogShip.x += 220;
clampShipPosition();
}
// No shooting on tap, as laser is now automatic
}
};
// Fire laser every 0.3 seconds automatically
var laserInterval = LK.setInterval(function () {
if (lastGameOver) return;
var laser = new Laser();
laser.x = dogShip.x;
laser.y = dogShip.y - dogShip.radius - 30;
lasers.push(laser);
game.addChild(laser);
LK.getSound('laserShoot').play();
}, 300);
// Asteroid spawn logic
function spawnAsteroid() {
// 1 in 18 chance for a large asteroid
var isLarge = Math.random() < 1 / 18;
var asteroid;
if (isLarge) {
asteroid = new LargeAsteroid();
} else {
asteroid = new Asteroid();
}
// Spawn at random X, just above top
var margin = asteroid.radius + 40;
asteroid.x = margin + Math.random() * (2048 - margin * 2);
asteroid.y = -asteroid.radius - 40;
asteroids.push(asteroid);
game.addChild(asteroid);
}
// Collision detection (circle vs circle)
function circlesIntersect(a, b) {
var dx = a.x - b.x;
var dy = a.y - b.y;
var r = a.radius + b.radius - 10; // -10 for some forgiveness
return dx * dx + dy * dy < r * r;
}
// Main game update
game.update = function () {
// Animate stars (twinkle)
for (var si = 0; si < stars.length; si++) {
var s = stars[si];
s.alpha = 0.5 + 0.5 * Math.sin(LK.ticks * s._twinkleSpeed + s._twinklePhase);
}
// Asteroid spawn rate: every 40-70 ticks, randomize for tension
asteroidSpawnTick--;
if (asteroidSpawnTick <= 0) {
spawnAsteroid();
asteroidSpawnTick = 40 + Math.floor(Math.random() * 30);
}
// Update asteroids
for (var i = asteroids.length - 1; i >= 0; i--) {
var a = asteroids[i];
a.update();
// Remove if off screen
if (a.y - a.radius > 2732 + 60) {
a.destroy();
asteroids.splice(i, 1);
continue;
}
// Check collision with dogShip
if (!lastGameOver && circlesIntersect(a, dogShip)) {
if (a.isLargeAsteroid) {
// Large asteroid: lose all lives instantly
lives = 0;
livesTxt.setText('Lives: 0');
LK.effects.flashScreen(0xff0000, 1200);
tween(dogShip, {
alpha: 0.2
}, {
duration: 500,
easing: tween.easeOut
});
// Remove asteroid
a.destroy();
asteroids.splice(i, 1);
lastGameOver = true;
LK.showGameOver();
return;
} else {
// Normal asteroid: lose one life
lives--;
livesTxt.setText('Lives: ' + lives);
LK.effects.flashScreen(0xff0000, 900);
tween(dogShip, {
alpha: 0.2
}, {
duration: 400,
easing: tween.easeOut
});
// Remove asteroid
a.destroy();
asteroids.splice(i, 1);
if (lives <= 0) {
lastGameOver = true;
LK.showGameOver();
return;
} else {
// Briefly flash ship, restore alpha
tween(dogShip, {
alpha: 1
}, {
duration: 400,
easing: tween.easeOut
});
}
}
}
}
// Update lasers
for (var j = lasers.length - 1; j >= 0; j--) {
var l = lasers[j];
l.update();
// Remove if off screen
if (l.y + l.radius < -60) {
l.destroy();
lasers.splice(j, 1);
continue;
}
// Check collision with asteroids
for (var k = asteroids.length - 1; k >= 0; k--) {
var a2 = asteroids[k];
if (circlesIntersect(l, a2)) {
// Destroy both
LK.getSound('asteroidHit').play();
a2.destroy();
asteroids.splice(k, 1);
l.destroy();
lasers.splice(j, 1);
// Score up
if (a2.isLargeAsteroid) {
LK.setScore(LK.getScore() + 100);
scoreTxt.setText(LK.getScore());
// Extra life!
lives++;
livesTxt.setText('Lives: ' + lives);
// Big explosion effect
LK.effects.flashObject(dogShip, 0xffe000, 400);
} else {
LK.setScore(LK.getScore() + 10);
scoreTxt.setText(LK.getScore());
// Small asteroid explosion effect
LK.effects.flashObject(dogShip, 0x00e0ff, 200);
}
break;
}
}
}
};
// Reset state on new game
LK.on('gameStart', function () {
// Remove all asteroids and lasers
for (var i = 0; i < asteroids.length; i++) asteroids[i].destroy();
for (var j = 0; j < lasers.length; j++) lasers[j].destroy();
asteroids = [];
lasers = [];
// Reset dogShip
dogShip.x = 2048 / 2;
dogShip.y = 2732 - 320;
dogShip.alpha = 1;
lastGameOver = false;
scoreTxt.setText('0');
LK.setScore(0);
asteroidSpawnTick = 30;
clampShipPosition();
// Reset lives
lives = 5;
livesTxt.setText('Lives: ' + lives);
// Restart music
LK.playMusic('spaceMusic');
// Restart laser interval
if (typeof laserInterval !== "undefined") {
LK.clearInterval(laserInterval);
}
laserInterval = LK.setInterval(function () {
if (lastGameOver) return;
var laser = new Laser();
laser.x = dogShip.x;
laser.y = dogShip.y - dogShip.radius - 30;
lasers.push(laser);
game.addChild(laser);
LK.getSound('laserShoot').play();
}, 300);
}); ===================================================================
--- original.js
+++ change.js
@@ -42,8 +42,32 @@
// For drag effect
self.isDragging = false;
return self;
});
+// Large Asteroid (rare, big, dangerous)
+var LargeAsteroid = Container.expand(function () {
+ var self = Container.call(this);
+ var asteroid = self.attachAsset('asteroid', {
+ anchorX: 0.5,
+ anchorY: 0.5,
+ scaleX: 2.1,
+ scaleY: 2.1
+ });
+ // Randomize rotation
+ asteroid.rotation = Math.random() * Math.PI * 2;
+ // Slower speed, but still moves
+ self.speedY = 2 + Math.random() * 1.5; // 2-3.5 px/frame
+ self.speedX = (Math.random() - 0.5) * 1.2; // -0.6 to 0.6 px/frame
+ self.radius = asteroid.width * 0.5 * 2.1; // scale radius
+ self.rotSpeed = (Math.random() - 0.5) * 0.025;
+ self.isLargeAsteroid = true;
+ self.update = function () {
+ self.y += self.speedY;
+ self.x += self.speedX;
+ asteroid.rotation += self.rotSpeed;
+ };
+ return self;
+});
// Laser
var Laser = Container.expand(function () {
var self = Container.call(this);
var laser = self.attachAsset('laser', {
@@ -193,9 +217,16 @@
LK.getSound('laserShoot').play();
}, 300);
// Asteroid spawn logic
function spawnAsteroid() {
- var asteroid = new Asteroid();
+ // 1 in 18 chance for a large asteroid
+ var isLarge = Math.random() < 1 / 18;
+ var asteroid;
+ if (isLarge) {
+ asteroid = new LargeAsteroid();
+ } else {
+ asteroid = new Asteroid();
+ }
// Spawn at random X, just above top
var margin = asteroid.radius + 40;
asteroid.x = margin + Math.random() * (2048 - margin * 2);
asteroid.y = -asteroid.radius - 40;
@@ -233,33 +264,52 @@
continue;
}
// Check collision with dogShip
if (!lastGameOver && circlesIntersect(a, dogShip)) {
- // Lose a life
- lives--;
- livesTxt.setText('Lives: ' + lives);
- LK.effects.flashScreen(0xff0000, 900);
- tween(dogShip, {
- alpha: 0.2
- }, {
- duration: 400,
- easing: tween.easeOut
- });
- // Remove asteroid
- a.destroy();
- asteroids.splice(i, 1);
- if (lives <= 0) {
+ if (a.isLargeAsteroid) {
+ // Large asteroid: lose all lives instantly
+ lives = 0;
+ livesTxt.setText('Lives: 0');
+ LK.effects.flashScreen(0xff0000, 1200);
+ tween(dogShip, {
+ alpha: 0.2
+ }, {
+ duration: 500,
+ easing: tween.easeOut
+ });
+ // Remove asteroid
+ a.destroy();
+ asteroids.splice(i, 1);
lastGameOver = true;
LK.showGameOver();
return;
} else {
- // Briefly flash ship, restore alpha
+ // Normal asteroid: lose one life
+ lives--;
+ livesTxt.setText('Lives: ' + lives);
+ LK.effects.flashScreen(0xff0000, 900);
tween(dogShip, {
- alpha: 1
+ alpha: 0.2
}, {
duration: 400,
easing: tween.easeOut
});
+ // Remove asteroid
+ a.destroy();
+ asteroids.splice(i, 1);
+ if (lives <= 0) {
+ lastGameOver = true;
+ LK.showGameOver();
+ return;
+ } else {
+ // Briefly flash ship, restore alpha
+ tween(dogShip, {
+ alpha: 1
+ }, {
+ duration: 400,
+ easing: tween.easeOut
+ });
+ }
}
}
}
// Update lasers
@@ -282,12 +332,22 @@
asteroids.splice(k, 1);
l.destroy();
lasers.splice(j, 1);
// Score up
- LK.setScore(LK.getScore() + 10);
- scoreTxt.setText(LK.getScore());
- // Small asteroid explosion effect
- LK.effects.flashObject(dogShip, 0x00e0ff, 200);
+ if (a2.isLargeAsteroid) {
+ LK.setScore(LK.getScore() + 100);
+ scoreTxt.setText(LK.getScore());
+ // Extra life!
+ lives++;
+ livesTxt.setText('Lives: ' + lives);
+ // Big explosion effect
+ LK.effects.flashObject(dogShip, 0xffe000, 400);
+ } else {
+ LK.setScore(LK.getScore() + 10);
+ scoreTxt.setText(LK.getScore());
+ // Small asteroid explosion effect
+ LK.effects.flashObject(dogShip, 0x00e0ff, 200);
+ }
break;
}
}
}
Showing 1 to 12 of 12
Images
:quality(85)/https://cdn.frvr.ai/683e9939f8b8d04886201c2e.png%3F3)
Modern App Store icon, high definition, square with rounded corners, for a game titled "Space Dog: Asteroid Blaster" and with the description "Control a spacefaring dog, shoot asteroids, and avoid collisions to survive and score points.". No text on icon!
:quality(85)/https://cdn.frvr.ai/683e9bf5f8b8d04886201c5c.png%3F3)
A BIG GRAY ASTEROID. In-Game asset. 2d. High contrast. No shadows. Retro 8bt
:quality(85)/https://cdn.frvr.ai/683e9c70f8b8d04886201c67.png%3F3)
16 bit super nintendo
Used plugins
@upit/tween
