I need a PINESCRIPT expert to edit my trading view stratergy

I have a script writen in pinescript which is similar to pythoni believe, I need the script to only set a buy condition once the price has risen by 5% this is all on a platform called trading view the code for my currernt strat/script in down below: //@version=2 strategy("EMA Long Only Strategy", overlay=true, default_qty_type=strategy.percent_of_equity, default_qty_value=100) len = input(21, type=integer, minval=1, title="Length") price = sma(close, 2) average = ema(close, len) diff = atr(len) bull_level = average + diff bear_level = average - diff bull_cross = crossover(price, bull_level) bear_cross = crossover(bear_level, price) [login to view URL]("Buy", [login to view URL], when=bull_cross) [login to view URL]("Buy", when=bear_cross) //[login to view URL]("Sell", [login to view URL], when=bear_cross) plot(price, title="price", color=green, transp=50, linewidth = 4) plot(average, title="average", color=red, transp=50, linewidth = 4) a1 = plot(bull_level, title="bull", color=red, transp=50, linewidth = 1) a2 = plot(bear_level, title="bear", color=red, transp=50, linewidth = 1) fill(a2, a1, color=red, transp=95)