Ranged Volume Strategy - evo
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © EvoCrypto

//@version=4
strategy("Ranged Volume Strategy - evo", shorttitle="Ranged Volume", format=format.volume)

// INPUTS {
Range_Length    =   input(5,        title="Range Length",                       minval=1)

Heikin_Ashi     =   input(true,     title="Heikin Ashi Colors")
Display_Bars    =   input(true,     title="Show Bar Colors")
Display_Break   =   input(true,     title="Show Break-Out")
Display_Range   =   input(true,     title="Show Range")
// }

// SETTINGS {
Close           =   Heikin_Ashi ? security(heikinashi(syminfo.tickerid), timeframe.period, close)    : close
Open            =   Heikin_Ashi ? security(heikinashi(syminfo.tickerid), timeframe.period, open)     : open

Positive        =    volume
Negative        =   -volume

Highest         =   highest(volume, Range_Length)
Lowest          =   lowest(-volume, Range_Length)

Up              =   Highest > Highest[1] and Close > Open
Dn              =   Highest > Highest[1] and Close < Open

Volume_Color    =   
 Display_Break and Up   ? color.new(#ffeb3b, 0)     : 
 Display_Break and Dn   ? color.new(#f44336, 0)     : 
 Close > Open           ? color.new(#00c0ff, 60)    : 
 Close < Open           ? color.new(#000000, 60)    : na 
// }

//PLOTS {
plot(Positive,                      title="Positive Volume",    color=Volume_Color,             style=plot.style_histogram,  linewidth=4)
plot(Negative,                      title="Negative Volume",    color=Volume_Color,             style=plot.style_histogram,  linewidth=4)

plot(Display_Range ? Highest : na,  title="Highest",            color=color.new(#000000, 0),    style=plot.style_line,       linewidth=2)
plot(Display_Range ? Lowest  : na,  title="Lowest",             color=color.new(#000000, 0),    style=plot.style_line,       linewidth=2)

barcolor(Display_Bars ? Volume_Color : na)
// }

if (Up)
    strategy.entry("Long Entry", strategy.long)
if (Dn)
    strategy.entry("Short Entry", strategy.short)