Assign variable to another variable name

Question

How can I assign variable to another variable name? for example, I would like to achieve the following

        function ballPosition(ballType)
            balls[ball].ballType.x  = balls[ball].x
            balls[ball].ballType.y  = balls[ball].y
        end

    if balls[ball].type == "fireBall" then
        ballPosition(fireBall)
    elseif balls[ball].type == "powerLessBall" then
        ballPosition(powerLessBall)
    end

at the moment i have:

        if balls[ball].type == "fireBall" then
            balls[ball].fireBall.x  = balls[ball].x
            balls[ball].fireBall.y  = balls[ball].y
        elseif balls[ball].type == "powerLessBall" then
            balls[ball].powerLessBall.x = balls[ball].x
            balls[ball].powerLessBall.y     = balls[ball].y
        end

Etan Reisner · Accepted Answer · 2013-07-12 22:49:25Z

2

balls[ball][balls[ball].type].x = balls[ball].x

or more clearly

balltype = balls[ball].type
balls[ball][balltype].x = balls[ball].x

answered Jul 12, 2013 at 22:49

Etan Reisner

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