Level Designing

hi,
i am work on game like farm hero saga, but my problem is
how to design level which means give no of moves, target, score,
because game element generate randomly, and its hard to find
a formula to set number of move with respect to targeted elements.
if any one have any idea give me suggestion asap.

there are two kinds of level design, Different scale and different kind.
different scale has mean that you change parameter of AI like HP, STR, AGI etc in various number. Different kind has mean that you changing behavior or movement algorithm. The second one is harder but user will get more experience. If you want to use different scale in your case, you have make your every changes of AI parameter will give new difficulties for user. For example in RPG if we just change STR, AGI parameter of enemy so that user just need train their avatar until reach enemy’s STR, AGI, it will be bored when user do repeatedly.