blackroad/roadc/examples/space_shooter.road

# BlackRoad 3D Space Shooter
# A complete game example showing language features

## Game State
type GameState:
    score: int
    lives: int
    level: int
    paused: bool

var state = GameState{
    score: 0,
    lives: 3,
    level: 1,
    paused: false
}

## Player Ship Type
type Ship:
    position: vec3
    velocity: vec3
    health: int
    fireCooldown: float

var player = Ship{
    position: vec3(0, 0, 0),
    velocity: vec3(0, 0, 0),
    health: 100,
    fireCooldown: 0.0
}

## Enemy Type
type Enemy:
    position: vec3
    velocity: vec3
    health: int
    alive: bool

var enemies: list[Enemy] = []

## 3D Scene Definition
space GameWorld:
    ## Player Ship (Hot Pink!)
    cube PlayerShip:
        position: vec3(0, 0, 0)
        scale: vec3(0.5, 0.5, 1.0)
        color: #FF1D6C  # BlackRoad Hot Pink
        material: {
            "metalness": 0.8,
            "roughness": 0.2,
            "emissive": #FF1D6C
        }

    ## Starfield Background
    plane Starfield:
        position: vec3(0, 0, -20)
        scale: vec3(100, 100, 1)
        color: #000000
        texture: "stars.png"

    ## Directional Light
    light MainLight:
        type: directional
        position: vec3(5, 10, 5)
        color: #FFFFFF
        intensity: 1.5
        shadows: true

    ## Camera
    camera MainCam:
        position: vec3(0, 5, 10)
        lookAt: vec3(0, 0, 0)
        fov: 60
        near: 0.1
        far: 1000

## Game Functions

fun spawnEnemy():
    let x = random(-8.0, 8.0)
    let y = random(-5.0, 5.0)

    let enemy = Enemy{
        position: vec3(x, y, -15),
        velocity: vec3(0, 0, 2.0),
        health: 30,
        alive: true
    }

    enemies.push(enemy)

    # Spawn visual cube in scene
    spawn cube:
        id: "enemy_{enemies.len()}"
        position: enemy.position
        scale: vec3(0.8, 0.8, 0.8)
        color: #F5A623  # Amber
        tag: "enemy"

fun shoot():
    if player.fireCooldown > 0:
        return

    # Create bullet
    spawn sphere:
        id: "bullet_{time()}"
        position: player.position + vec3(0, 0, -1)
        radius: 0.1
        color: #2979FF  # Electric Blue
        velocity: vec3(0, 0, -25.0)
        tag: "bullet"
        glow: true

    # Play sound
    audio.play("shoot.wav")

    # Set cooldown
    player.fireCooldown = 0.2

fun updatePlayer(delta: float):
    # Handle input
    if input.key(Key.Left):
        player.velocity.x = -10.0
    elif input.key(Key.Right):
        player.velocity.x = 10.0
    else:
        player.velocity.x = 0.0

    if input.key(Key.Up):
        player.velocity.y = 10.0
    elif input.key(Key.Down):
        player.velocity.y = -10.0
    else:
        player.velocity.y = 0.0

    if input.key(Key.Space):
        shoot()

    # Update position
    player.position = player.position + (player.velocity * delta)

    # Clamp to screen bounds
    player.position.x = clamp(player.position.x, -8.0, 8.0)
    player.position.y = clamp(player.position.y, -5.0, 5.0)

    # Update cooldown
    if player.fireCooldown > 0:
        player.fireCooldown = player.fireCooldown - delta

    # Update visual
    GameWorld.PlayerShip.position = player.position

fun updateEnemies(delta: float):
    for enemy in enemies:
        if not enemy.alive:
            continue

        # Move enemy forward
        enemy.position.z = enemy.position.z + (enemy.velocity.z * delta)

        # Remove if off screen
        if enemy.position.z > 5:
            enemy.alive = false
            destroy("enemy_{i}")
            state.lives = state.lives - 1

fun checkCollisions():
    # Get all bullets
    let bullets = scene.findByTag("bullet")
    let enemyObjects = scene.findByTag("enemy")

    for bullet in bullets:
        for enemy in enemyObjects:
            # Check distance
            let dist = distance(bullet.position, enemy.position)

            if dist < 1.0:
                # Hit!
                destroy(bullet.id)
                destroy(enemy.id)

                # Update score
                state.score = state.score + 100

                # Particle effect
                spawn particles:
                    position: enemy.position
                    color: #FF1D6C
                    count: 20
                    lifetime: 0.5

                # Sound
                audio.play("explosion.wav")

    # Check player collision
    for enemy in enemyObjects:
        let dist = distance(player.position, enemy.position)
        if dist < 1.0:
            # Player hit!
            player.health = player.health - 10
            destroy(enemy.id)

            if player.health <= 0:
                gameOver()

fun spawnWave():
    for i in 0..5:
        spawnEnemy()

fun gameOver():
    print("Game Over! Final Score: {state.score}")
    state.paused = true

    # Show game over screen
    ui.text("GAME OVER", pos: vec2(400, 300), size: 48, color: #FF1D6C)
    ui.text("Score: {state.score}", pos: vec2(400, 360), size: 32, color: #FFFFFF)

## Main Game Loop
async fun main():
    # Initialize
    print("BlackRoad Space Shooter 🚀")
    print("Arrow keys to move, Space to shoot")

    # Load assets
    await audio.load("shoot.wav")
    await audio.load("explosion.wav")

    # Start background music
    audio.playMusic("background.mp3", loop: true)

    # Spawn initial wave
    spawnWave()

    var lastSpawn: float = 0.0

    # Main game loop
    while not state.paused:
        let delta = time.deltaTime()

        # Update game objects
        updatePlayer(delta)
        updateEnemies(delta)
        checkCollisions()

        # Spawn new wave every 5 seconds
        lastSpawn = lastSpawn + delta
        if lastSpawn > 5.0:
            spawnWave()
            lastSpawn = 0.0
            state.level = state.level + 1

        # Render scene
        render(GameWorld, camera: MainCam)

        # Draw UI
        ui.text("Score: {state.score}", pos: vec2(10, 10), size: 24)
        ui.text("Lives: {state.lives}", pos: vec2(10, 40), size: 24)
        ui.text("Level: {state.level}", pos: vec2(10, 70), size: 24)

        # Health bar
        ui.rect(
            pos: vec2(10, 100),
            size: vec2(player.health * 2, 20),
            color: player.health > 50 ? #00FF00 : #FF0000
        )

        # Cap at 60 FPS
        await time.sleep(1.0 / 60.0)

    print("Thanks for playing! 🖤🛣️")