local Tower = {}
Tower.__index = Tower

function Tower:new(model, position, range, damage, fireRate, effect)
    local self = setmetatable({}, Tower)
    self.model = model:Clone()
    self.model.Position = position
    self.model.Anchored = true
    self.model.Parent = workspace
    self.range = range
    self.damage = damage
    self.fireRate = fireRate or 1 -- shots per second
    self.effect = effect -- set of params for effect
    self.lastFire = 0
    return self
end

function Tower:canAttack(enemy)
    if not enemy.alive or not enemy.model or not enemy.model.PrimaryPart then return false end
    local dist = (self.model.Position - enemy.model.PrimaryPart.Position).Magnitude
    return dist <= self.range
end

function Tower:attack(enemies, dt)
    self.lastFire = self.lastFire + dt
    if self.lastFire >= (1 / self.fireRate) then
        for _, enemy in ipairs(enemies) do
            if self:canAttack(enemy) then
                enemy:damage(self.damage)

                if self.effect then
                    enemy:applyEffect(self.effect.name, self.effect.params)
                end

                self.lastFire = 0
                break -- Only attack one enemy per fire
            end
        end
    end
end

return Tower