--Ban-hammers come from each side, with gaps to move through.

spawntimer = 0
hammerprogress = 1
bullets = {}

function Update()
    if(spawntimer % 120 == 0 and hammerprogress == 1 and math.random()>0.8) then
	local gap = math.ceil(math.random()*7)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_black', -125+25*i, Arena.height/2+50)
                bullet.SetVar('xvel', 0)
                bullet.SetVar('yvel', -1.5)
	        bullet.SetVar('type','normal')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 2
    elseif(spawntimer % 120 == 0 and hammerprogress == 2 and math.random()>0.8) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_black_hr', Arena.width/2+50, -125+25*i)
                bullet.SetVar('xvel', -1.5)
                bullet.SetVar('yvel', 0)
	        bullet.SetVar('type','normal')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 3
    elseif(spawntimer % 120 == 0 and hammerprogress == 3 and math.random()>0.8) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_black_inv', -125+25*i, -Arena.height/2-50)
                bullet.SetVar('xvel', 0)
                bullet.SetVar('yvel', 1.5)
	        bullet.SetVar('type','normal')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 4
    elseif(spawntimer % 120 == 0 and hammerprogress == 4 and math.random()>0.8) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_black_hr_inv', -Arena.width/2-50, -125+25*i)
                bullet.SetVar('xvel', 1.5)
                bullet.SetVar('yvel', 0)
	        bullet.SetVar('type','normal')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 1
    if(spawntimer % 120 == 0 and hammerprogress == 1) then
	local gap = math.ceil(math.random()*7)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_purple', -125+25*i, Arena.height/2+50)
                bullet.SetVar('xvel', 0)
                bullet.SetVar('yvel', -1.5)
	        bullet.SetVar('type','purple')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 2
    elseif(spawntimer % 120 == 0 and hammerprogress == 2) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_purple_hr', Arena.width/2+50, -125+25*i)
                bullet.SetVar('xvel', -1.5)
                bullet.SetVar('yvel', 0)
	        bullet.SetVar('type','purple')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 3
    elseif(spawntimer % 120 == 0 and hammerprogress == 3) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_purple_inv', -125+25*i, -Arena.height/2-50)
                bullet.SetVar('xvel', 0)
                bullet.SetVar('yvel', 1.5)
	        bullet.SetVar('type','purple')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 4
    elseif(spawntimer % 120 == 0 and hammerprogress == 4) then
	local gap = math.ceil(math.random()*8)+1
        for i=1,9 do
	    if not (i == gap) then
                local bullet = CreateProjectile('banhammer_purple_hr_inv', -Arena.width/2-50, -125+25*i)
                bullet.SetVar('xvel', 1.5)
                bullet.SetVar('yvel', 0)
	        bullet.SetVar('type','purple')
                table.insert(bullets, bullet)
	    end
	end
	hammerprogress = 1
    end
    spawntimer = spawntimer + 1

    for i=1,#bullets do
        local bullet = bullets[i]
        local xvel = bullet.GetVar('xvel')
        local yvel = bullet.GetVar('yvel')
        local posx = bullet.x + xvel
        local posy = bullet.y + yvel
        bullet.MoveTo(posx, posy)
    end
end

function OnHit(bullet)
    if bullet.GetVar('type') == 'purple' then
	Player.Hurt(6)
    else
	Player.Hurt(3)
    end
end