acti

local robot=require("robot")

function act(action)
    local actions={
        f=robot.forward,
        b=robot.back,
        u=robot.up,
        d=robot.down,
        l=robot.turnLeft,
        r=robot.turnRight,
        ta=robot.turnAround,
        sw=robot.swing,
        su=robot.swingUp,
        sd=robot.swingDown,
        ul=robot.use,
        uu=robot.useUp,
        ud=robot.useDown,
        dt=robot.detect,
        du=robot.detectUp,
        dd=robot.detectDown
    }
    for doaction in string.gmatch(action,"%.%d*%a+") do
        local quantity=string.match(doaction,"%d+")
        if quantity==nil then
            quantity="1"
        end
        local direction=string.match(doaction,"%a+")
        print (doaction,"    ",quantity,"    ",direction)
        for i=1,quantity do
            actions[direction]()
        end
    end
end

return act