Stratégie de trading en grille

//@version=6
// Note: Full grid trading requires broker-integration; this script demonstrates
// grid level detection and signals for manual or semi-automated grid execution.
strategy("Grid Trading Strategy", overlay=true)
gridCount  = input.int(5, "Grid Levels", minval=2, maxval=20)
rangeLow   = input.float(0.0, "Range Low (0=auto)")
rangeHigh  = input.float(0.0, "Range High (0=auto)")
lookback   = input.int(50, "Auto-Range Lookback")
lo = rangeLow  > 0 ? rangeLow  : ta.lowest(low,  lookback)
hi = rangeHigh > 0 ? rangeHigh : ta.highest(high, lookback)
step = (hi - lo) / gridCount
level = math.round((close - lo) / step) * step + lo
buySignal  = ta.crossover(close, level - step * 0.1)
sellSignal = ta.crossunder(close, level + step * 0.1)
if buySignal
    strategy.entry("GridBuy", strategy.long)
if sellSignal
    strategy.close("GridBuy")
for i = 0 to gridCount
    line.new(bar_index - 1, lo + i * step, bar_index, lo + i * step, extend=extend.right, color=color.new(color.teal, 50))

input gridCount = 5;
input lookback = 50;
def lo = Lowest(low, lookback);
def hi = Highest(high, lookback);
def step = (hi - lo) / gridCount;
def level = Round((close - lo) / step, 0) * step + lo;
def buySignal = close crosses above level - step * 0.1;
def sellSignal = close crosses below level + step * 0.1;
AddOrder(OrderType.BUY_AUTO, buySignal, close, 1, Color.GREEN, Color.GREEN, "Grid Trading Strategy Buy");
AddOrder(OrderType.SELL_AUTO, sellSignal, close, 1, Color.RED, Color.RED, "Grid Trading Strategy Sell");
plot RangeLow = lo;
RangeLow.SetDefaultColor(Color.RED);
plot RangeHigh = hi;
RangeHigh.SetDefaultColor(Color.GREEN);