Combined EMA & MA crossovers [CDI]
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © JMLSlop

//@version=4

src = close
strategy("Crossover moving averages", shorttitle="Cross MA-EMA", overlay=true, calc_on_order_fills=false)

// first fast EMA
len = input(8, "Length", type=input.integer, minval=1)
doma1 = input(true, title="EMA")
out1 = ema(src, len) 

//Second fast EMA
len2 = input(21, minval=1, title="Length")
doma2 = input(true, title="EMA")
out2 = ema(src, len2)

//First slow MA
len3 = input(50, minval=1, title="Length")
doma3 = input(true, title="SMA")
out3 = sma(src, len3)

//Second slow MA
len4 = input(200, minval=1, title="Length")
doma4 = input(true, title="SMA")
out4 = sma(src, len4)

// Profit
profit = input(8, "Profit/lost %", type=input.float, minval=1) * 0.01


plot(doma1 and out1 ? out1: na, color=color.blue, linewidth=1, title="1st EMA")
plot(doma2 and out2 ? out2: na, color=color.red, linewidth=1, title="2nd EMA")
plot(doma3 and out3 ? out3: na, color=color.green, linewidth=2, title="1st MA")
plot(doma4 and out4 ? out4: na, color=color.orange, linewidth=3, title="2nd MA")

// Orders config
takeProfitPrice =
     (strategy.position_size > 0) ? strategy.position_avg_price + open*profit : (strategy.position_size < 0) ? strategy.position_avg_price - (open*profit) : na

longStopPrice  = strategy.position_avg_price * (1 - profit)
shortStopPrice = strategy.position_avg_price * (1 + profit)

longCondition2 = (out2>out3 and (crossover(out1, out4) or crossover(out1[1], out4[1]) or crossover(out1[2], out4[2]) or (crossover(out1[3], out4[3]))) or (out2>out3 and (crossover(out1, out3) or crossover(out1[1], out3[1]) or crossover(out1[2], out3[2]) or crossover(out1[3], out3[3]))))
if (longCondition2)
    strategy.entry("Enter L", strategy.long)

shortCondition2 = (out2<out3 and (crossunder(out1, out4) or crossunder(out1[1], out4[1]) or crossunder(out1[2], out4[2]) or crossunder(out1[3], out4[3]))) or (out2<out3 and (crossunder(out1, out3) or crossunder(out1[1], out3[1]) or crossunder(out1[2], out3[2]) or crossunder(out1[3], out3[3])))
if (shortCondition2)
    strategy.entry("Enter S", strategy.short)


if (strategy.position_size > 0)
    strategy.exit("Exit L", limit=takeProfitPrice, stop=longStopPrice)

if (strategy.position_size < 0)
    strategy.exit("Exit S", limit=takeProfitPrice, stop=shortStopPrice)
