local StackingHats, super = Class(Wave)

function StackingHats:init()
    super.init(self)

    -- The duration of our wave, in seconds. (Defaults to `5`)
    self.time = 10
    self.count = 0
    
end

function StackingHats:onStart()
    -- code here gets called at the start of the wave
        -- create a bullet in the center of the screen
    arena = Game.battle.arena
    arenaX, arenaY = arena:getBottomLeft()
    arenaX2, arenaY2 = arena:getBottomRight()
    self.collider = LineCollider(self, arenaX, arenaY, arenaX2, arenaY2)
    self.timer:everyInstant(1, function()

        local x = SCREEN_WIDTH / 2
        local y = arena:getTop() * 0.5
        self.bullets[self.count] = self:spawnBullet("hatbulllet", x, y)
        -- set the bullet's speed to 4 (pixels per 1/30th second)
        self.bullets[self.count].physics.speed = 4
        self.count = self.count + 1
    end)
    super.onStart(self)
end

function StackingHats:update()
    -- code here gets called every frame  

    for i = 0, self.count -1, 1 do
        for j = 0, i-1, 1 do
            if (i ~= j) then
                if (self.bullets[i].collider:collidesWith(self.bullets[j])) then
                    self.bullets[i].physics.speed = 0
                end
            end
        end
        if (self.bullets[i].collider:collidesWith(self)) then
            self.bullets[i].physics.speed = 0
        end
    end

    super.update(self)
end

return StackingHats