-- Update towers for i, tower in ipairs(game.towers) do -- Check for enemies in range for j, enemy in ipairs(game.enemies) do if (tower.x - enemy.x) ^ 2 + (tower.y - enemy.y) ^ 2 < tower.range ^ 2 then -- Attack enemy enemy.damage = enemy.damage - tower.damage * dt if enemy.damage <= 0 then table.remove(game.enemies, j) end end end end

function Enemy.new(x, y) local enemy = setmetatable({}, Enemy) enemy.x = x enemy.y = y enemy.speed = config.enemySpeedMultiplier enemy.damage = config.enemyDamageMultiplier return enemy end

function Tower.new(x, y) local tower = setmetatable({}, Tower) tower.x = x tower.y = y tower.damage = config.towerDamage tower.range = config.towerRange tower.level = 1 return tower end

-- Configuration local config = { -- Enemy spawn settings enemySpawnInterval = 2, enemySpawnChance = 0.5, enemySpeedMultiplier = 1.5, enemyDamageMultiplier = 1.5,

-- Wave system if game.waveTimer then game.waveTimer = game.waveTimer - dt if game.waveTimer <= 0 then game.wave = game.wave * config.waveIncrease game.waveTimer = config.waveInterval end else game.waveTimer = config.waveInterval end end