// Level definitions
// Map: 2D array where numbers correspond to wall types (0 = empty)
// Entities: array of {type, x, y} for enemies and pickups

const Levels = [
    // LEVEL 1: Military Base - Introduction level
    {
        name: "Military Base",
        map: [
            [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
            [1,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,2,2,0,0,0,1,1,0,0,0,3,3,0,0,0,1],
            [1,0,0,0,2,2,0,0,0,1,1,0,0,0,3,3,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
            [1,1,1,1,1,5,1,1,0,0,0,0,1,1,5,1,1,1,1,1],
            [1,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
            [1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,1],
            [1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,1],
            [1,0,0,0,0,0,0,0,0,4,4,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,4,4,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
            [1,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,1],
            [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
        ],
        playerStart: { x: 2.5, y: 2.5, angle: 0 },
        entities: [
            // Enemies
            { type: ENTITY_ENEMY_IMP, x: 15.5, y: 2.5 },
            { type: ENTITY_ENEMY_IMP, x: 5.5, y: 11.5 },
            { type: ENTITY_ENEMY_IMP, x: 14.5, y: 11.5 },
            { type: ENTITY_ENEMY_IMP, x: 10.5, y: 14.5 },
            { type: ENTITY_ENEMY_DEMON, x: 10.5, y: 17.5 },
            // Pickups
            { type: ENTITY_PICKUP_HEALTH, x: 8.5, y: 1.5 },
            { type: ENTITY_PICKUP_AMMO, x: 1.5, y: 8.5 },
            { type: ENTITY_PICKUP_AMMO, x: 18.5, y: 8.5 },
            { type: ENTITY_PICKUP_SHOTGUN, x: 10.5, y: 7.5 },
            { type: ENTITY_PICKUP_ARMOR, x: 1.5, y: 11.5 },
            // Decorations
            { type: ENTITY_LAMP, x: 5.5, y: 7.5 },
            { type: ENTITY_LAMP, x: 14.5, y: 7.5 },
            { type: ENTITY_BARREL, x: 17.5, y: 12.5 },
            { type: ENTITY_BARREL, x: 2.5, y: 17.5 },
        ]
    },

    // LEVEL 2: Research Lab - Medium difficulty
    {
        name: "Research Lab",
        map: [
            [4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4],
            [4,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,3,3,3,3,0,0,0,4,0,0,0,0,4],
            [4,4,5,4,4,4,0,0,0,3,0,0,3,0,0,0,4,4,5,4,4,4],
            [4,0,0,0,0,0,0,0,0,3,0,0,3,0,0,0,0,0,0,0,0,4],
            [4,0,0,0,0,0,0,0,0,5,0,0,5,0,0,0,0,0,0,0,0,4],
            [4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4],
            [4,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,4],
            [4,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,4],
            [4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4],
            [4,0,0,0,0,0,0,0,0,4,4,4,4,0,0,0,0,0,0,0,0,4],
            [4,4,4,5,4,4,0,0,0,4,0,0,4,0,0,0,4,4,5,4,4,4],
            [4,0,0,0,0,4,0,0,0,5,0,0,5,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,4,0,0,4,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,4,0,0,4,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,4],
            [4,0,0,0,0,4,0,0,0,0,6,0,0,0,0,0,4,0,0,0,0,4],
            [4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4],
        ],
        playerStart: { x: 2.5, y: 2.5, angle: Math.PI / 4 },
        entities: [
            // Enemies
            { type: ENTITY_ENEMY_IMP, x: 10.5, y: 1.5 },
            { type: ENTITY_ENEMY_IMP, x: 19.5, y: 2.5 },
            { type: ENTITY_ENEMY_IMP, x: 2.5, y: 7.5 },
            { type: ENTITY_ENEMY_IMP, x: 19.5, y: 7.5 },
            { type: ENTITY_ENEMY_DEMON, x: 10.5, y: 8.5 },
            { type: ENTITY_ENEMY_DEMON, x: 5.5, y: 11.5 },
            { type: ENTITY_ENEMY_IMP, x: 16.5, y: 11.5 },
            { type: ENTITY_ENEMY_IMP, x: 2.5, y: 15.5 },
            { type: ENTITY_ENEMY_DEMON, x: 19.5, y: 15.5 },
            { type: ENTITY_ENEMY_IMP, x: 10.5, y: 16.5 },
            // Pickups
            { type: ENTITY_PICKUP_HEALTH, x: 19.5, y: 1.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 1.5, y: 6.5 },
            { type: ENTITY_PICKUP_AMMO, x: 20.5, y: 6.5 },
            { type: ENTITY_PICKUP_AMMO, x: 1.5, y: 18.5 },
            { type: ENTITY_PICKUP_PLASMA, x: 10.5, y: 10.5 },
            { type: ENTITY_PICKUP_ARMOR, x: 20.5, y: 18.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 10.5, y: 14.5 },
            // Decorations
            { type: ENTITY_LAMP, x: 6.5, y: 8.5 },
            { type: ENTITY_LAMP, x: 15.5, y: 8.5 },
            { type: ENTITY_BARREL, x: 7.5, y: 1.5 },
            { type: ENTITY_BARREL, x: 14.5, y: 1.5 },
            { type: ENTITY_BARREL, x: 7.5, y: 18.5 },
            { type: ENTITY_BARREL, x: 14.5, y: 18.5 },
        ]
    },

    // LEVEL 3: Hell - Hard difficulty
    {
        name: "Gates of Hell",
        map: [
            [8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8],
            [8,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,8],
            [8,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,8],
            [8,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0,0,8],
            [8,0,0,0,0,0,8,0,0,0,7,7,7,7,0,0,0,8,0,0,0,0,0,8],
            [8,0,0,0,0,0,8,0,0,0,7,0,0,7,0,0,0,8,0,0,0,0,0,8],
            [8,8,8,5,8,8,8,0,0,0,5,0,0,5,0,0,0,8,8,8,5,8,8,8],
            [8,0,0,0,0,0,0,0,0,0,7,0,0,7,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,7,7,7,7,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,8,8,8,0,0,0,0,0,0,0,0,0,8,8,8,0,0,0,0,8],
            [8,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,8],
            [8,0,0,0,8,0,0,0,0,8,0,0,0,0,8,0,0,0,8,0,0,0,0,8],
            [8,0,0,0,8,0,0,0,0,8,0,0,0,0,8,0,0,0,8,0,0,0,0,8],
            [8,0,0,0,8,0,0,0,0,8,0,0,0,0,8,0,0,0,8,0,0,0,0,8],
            [8,0,0,0,8,8,5,8,8,8,0,0,0,0,8,8,5,8,8,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,8],
            [8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8],
        ],
        playerStart: { x: 2.5, y: 2.5, angle: 0 },
        entities: [
            // Many enemies
            { type: ENTITY_ENEMY_IMP, x: 21.5, y: 2.5 },
            { type: ENTITY_ENEMY_IMP, x: 10.5, y: 2.5 },
            { type: ENTITY_ENEMY_IMP, x: 14.5, y: 2.5 },
            { type: ENTITY_ENEMY_DEMON, x: 2.5, y: 7.5 },
            { type: ENTITY_ENEMY_DEMON, x: 21.5, y: 7.5 },
            { type: ENTITY_ENEMY_IMP, x: 4.5, y: 10.5 },
            { type: ENTITY_ENEMY_IMP, x: 19.5, y: 10.5 },
            { type: ENTITY_ENEMY_DEMON, x: 12.5, y: 9.5 },
            { type: ENTITY_ENEMY_IMP, x: 6.5, y: 13.5 },
            { type: ENTITY_ENEMY_IMP, x: 17.5, y: 13.5 },
            { type: ENTITY_ENEMY_DEMON, x: 12.5, y: 15.5 },
            { type: ENTITY_ENEMY_BARON, x: 12.5, y: 21.5 },
            { type: ENTITY_ENEMY_IMP, x: 2.5, y: 18.5 },
            { type: ENTITY_ENEMY_IMP, x: 21.5, y: 18.5 },
            { type: ENTITY_ENEMY_DEMON, x: 5.5, y: 21.5 },
            { type: ENTITY_ENEMY_DEMON, x: 19.5, y: 21.5 },
            // Pickups
            { type: ENTITY_PICKUP_HEALTH, x: 4.5, y: 1.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 21.5, y: 5.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 12.5, y: 17.5 },
            { type: ENTITY_PICKUP_AMMO, x: 1.5, y: 1.5 },
            { type: ENTITY_PICKUP_AMMO, x: 22.5, y: 1.5 },
            { type: ENTITY_PICKUP_AMMO, x: 1.5, y: 17.5 },
            { type: ENTITY_PICKUP_AMMO, x: 22.5, y: 17.5 },
            { type: ENTITY_PICKUP_ARMOR, x: 12.5, y: 5.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 8.5, y: 20.5 },
            { type: ENTITY_PICKUP_HEALTH, x: 16.5, y: 20.5 },
            // Decorations
            { type: ENTITY_LAMP, x: 9.5, y: 9.5 },
            { type: ENTITY_LAMP, x: 14.5, y: 9.5 },
            { type: ENTITY_BARREL, x: 8.5, y: 17.5 },
            { type: ENTITY_BARREL, x: 16.5, y: 17.5 },
            { type: ENTITY_BARREL, x: 3.5, y: 21.5 },
            { type: ENTITY_BARREL, x: 20.5, y: 21.5 },
        ]
    }
];