function ia.update_torxa(spr)
    if spr.state == templates.ALIVE then
        if sprites.hero.lives == 4 then return end
        local x1,y1,w1,h1 = util.aabb(spr)
        local x2,y2,w2,h2 = util.aabb(sprites.hero)
        if util.check_aabb_collision(x1,y1,w1,h1, x2,y2,w2,h2) then
            sprites.hero.hit(4)
            spr.state = templates.DYING
            spr.timer = 0
            return
        end
    elseif spr.state == templates.DYING then
        spr.timer = spr.timer + 1
        if spr.timer == 32 then
            spr.state = templates.ALIVE
        end
    end
end