LaserSentry

--[[
    pastebin run Rq71t2Ya
]]--


laser = peripheral.wrap("right")
sensor = peripheral.wrap("left")
monitor = peripheral.wrap( "back" )

monitor.setTextScale(2)


local function fire(entity)
    local x, y, z = entity.x, entity.y, entity.z
    local pitch = -math.atan2(y, math.sqrt(x * x + z * z))
    local yaw = math.atan2(-x, z)

    laser.fire(math.deg(yaw), math.deg(pitch), 5)
    sleep(0.2)
end


while(true) do

    local mobs = sensor.sense()
    for _, mob in pairs(mobs) do
        if(mob.displayName == "Guardian of Gaia") then
            local metaData = sensor.getMetaByID(mob.id)
            if(metaData ~= nil) then
                monitor.setCursorPos(1,1)
                monitor.write("Health: " .. metaData.health)
            end
            os.sleep(1)
        end
    end
end