flamebar.js

// @ts-check

// Mario-like flamebar

// Start kaplay
kaplay();

// Load assets
loadSprite("bean", "/sprites/bean.png");
loadSprite("pineapple", "/sprites/pineapple.png");

// Define player movement speed
const SPEED = 320;

// Add player game object
const player = add([
    sprite("bean"),
    pos(80, 40),
    area(),
]);

// Player movement
onKeyDown("left", () => {
    player.move(-SPEED, 0);
});

onKeyDown("right", () => {
    player.move(SPEED, 0);
});

onKeyDown("up", () => {
    player.move(0, -SPEED);
});

onKeyDown("down", () => {
    player.move(0, SPEED);
});

// Function to add a flamebar
function addFlamebar(position = vec2(0), angle = 0, num = 6) {
    // Create a parent game object for position and rotation
    const flameHead = add([
        pos(position),
        rotate(angle),
    ]);

    // Add each section of flame as children
    for (let i = 0; i < num; i++) {
        flameHead.add([
            sprite("pineapple"),
            pos(0, i * 48),
            area(),
            anchor("center"),
            "flame",
        ]);
    }

    // The flame head's rotation will affect all its children
    flameHead.onUpdate(() => {
        flameHead.angle += dt() * 60;
    });

    return flameHead;
}

addFlamebar(vec2(200, 300), -60);
addFlamebar(vec2(480, 100), 180);
addFlamebar(vec2(400, 480), 0);

// Game over if player touches a flame
player.onCollide("flame", () => {
    addKaboom(player.pos);
    player.destroy();
});