use bevy::math::Vec2;
use bevy::prelude::*;

// Window
pub const WINDOW_WIDTH: f32 = 600.0;
pub const WINDOW_HEIGHT: f32 = 800.0;

// Player
pub const PLAYER_SPEED: f32 = 300.0;
pub const PLAYER_SIZE: Vec2 = Vec2::new(30.0, 30.0);
pub const STARTING_LIVES: u32 = 3;
pub const PLAYER_RESPAWN_DELAY: f32 = 2.0;
pub const PLAYER_INVINCIBILITY_DURATION: f32 = 2.0;

// Enemies
pub const ENEMY_SPEED: f32 = 100.0;
pub const ENEMY_SIZE: Vec2 = Vec2::new(40.0, 40.0);
pub const ENEMY_SHOOT_INTERVAL: f32 = 1.5;

// Bullets
pub const BULLET_SPEED: f32 = 500.0;
pub const BULLET_SIZE: Vec2 = Vec2::new(5.0, 15.0);
pub const ENEMY_BULLET_SIZE: Vec2 = Vec2::new(8.0, 8.0);
pub const ENEMY_BULLET_SPEED: f32 = 300.0;

// Formation
const FORMATION_ROWS: usize = 4;
pub const FORMATION_COLS: usize = 8;
pub const FORMATION_ENEMY_COUNT: usize = FORMATION_ROWS * FORMATION_COLS;
pub const FORMATION_X_SPACING: f32 = 60.0;
pub const FORMATION_Y_SPACING: f32 = 50.0;
pub const FORMATION_BASE_Y: f32 = WINDOW_HEIGHT / 2.0 - 150.0;

// Collision thresholds (mean of half-widths)
pub const BULLET_ENEMY_COLLISION_THRESHOLD: f32 = (BULLET_SIZE.x + ENEMY_SIZE.x) * 0.5;
pub const PLAYER_ENEMY_COLLISION_THRESHOLD: f32 = (PLAYER_SIZE.x + ENEMY_SIZE.x) * 0.5;
pub const ENEMY_BULLET_PLAYER_COLLISION_THRESHOLD: f32 =
    (ENEMY_BULLET_SIZE.x + PLAYER_SIZE.x) * 0.5;

// Tractor beam
pub const TRACTOR_BEAM_WIDTH: f32 = 20.0;
pub const TRACTOR_BEAM_DURATION: f32 = 3.0;
pub const CAPTURE_DURATION: f32 = 10.0;
pub const BEAM_GLOW_WIDTH: f32 = 40.0;
pub const BEAM_GLOW_COLOR: Color = Color::srgba(0.3, 0.0, 0.5, 0.25);
pub const BEAM_CORE_COLOR: Color = Color::srgba(0.7, 0.2, 1.0, 0.7);
pub const BEAM_PULSE_FREQ: f32 = 3.0;
pub const BEAM_PULSE_AMPLITUDE: f32 = 0.15;

// Special stages
pub const SPECIAL_STAGE_INTERVAL: u32 = 3;

// Starfield
pub const STAR_COUNT: usize = 150;
pub const STAR_MIN_SIZE: f32 = 1.0;
pub const STAR_MAX_SIZE: f32 = 3.0;
pub const STAR_MIN_SPEED: f32 = 20.0;
pub const STAR_MAX_SPEED: f32 = 100.0;
pub const STAR_Z_DEPTH: f32 = -10.0;

// Explosion
pub const EXPLOSION_DURATION: f32 = 0.4;
pub const EXPLOSION_BASE_SIZE: Vec2 = Vec2::new(15.0, 15.0);
pub const EXPLOSION_MAX_SIZE: Vec2 = Vec2::new(50.0, 50.0);
pub const EXPLOSION_COLOR: Color = Color::srgba(1.0, 0.6, 0.1, 1.0);