fireball={
    hab=-1,
    x=0, y=0,
    w=6, h=6,
    wait=0,
    flip=false,
    step_length=3,
    bb={x=0,y=0,w=4,h=4}
}

function fireball.init(_hab,_x,_y,_flip, _off_x, _off_y)
    local world_x, world_y = coords.room_to_world(_hab,_x,_y)
    if fireball.hab ~= -1 then return end
    _off_x = _off_x or 0
    _off_y = _off_y or 0
    fireball.hab=_hab
    fireball.x= world_x+_off_x
    fireball.y= world_y+_off_y
    fireball.flip=_flip
end

function fireball.draw()
    if fireball.hab == -1 then return end
    local scr_x, scr_y = viewp:screen_coords( fireball.x, fireball.y )
    draw.circf(scr_x,scr_y,8,16)
    draw.circf(scr_x,scr_y,6,3)
    draw.circf(scr_x,scr_y,2,8)
end

function fireball.update()
    if fireball.hab == -1 then return end
    fireball.wait=fireball.wait+1

    --if fireball.wait==3 then
        fireball.wait=0

        --if viewp:inside(fireball.x, fireball.y, fireball.w, fireball.h)==false then
        --    fireball.hab=-1
        --    return
        --end
        
        if arc_check_tile(fireball.x,fireball.y)<tiletype.block then
            if fireball.flip then
                fireball.x=fireball.x-fireball.step_length
            else
                fireball.x=fireball.x+fireball.step_length
            end
        else
            fireball.hab=-1
            return
        end

        if viewp:inside(fireball.x, fireball.y, fireball.w, fireball.h) then
            if collision(fireball,abad) and abad.update~=abad_state_crouch then
                fireball.hab=-1
                abad_hurt(1)
            end
        end
    --end
end