Ichimoku Cloud-V5a

//Created By User ChrisMoody
//Last Update 10/20/2014
//new Updates include Cloud Color Change based on Trend.based on Trend
//Added ability to turn on/off Tenkan-Sen (9 Period), Kinjun-Sen (26 Period), Chinkou Span (Lagging Line), and "Cloud"
//Correct Plot Names for Alerts
study(title="Ichimoku Cloud-V5a", shorttitle="Ichimoku-V5a", overlay=true)
turningPeriods = input(1, minval=0, title="Tenkan-Sen")
standardPeriods = input(1, minval=0, title="Kinjun-Sen")
leadingSpan2Periods = input(2, minval=0, title="Senkou Span B")
displacement = input(0, minval=0, title="-ChinkouSpan/+SenkouSpan A")
sts = input(false, title="Show Tenkan-Sen (9 Period)?")
sks = input(false, title="Show Kinjun-Sen (26 Period)?")
sll = input(false, title="Show Chinkou Span (Lagging Line)?")
sc = input(true, title="Show Cloud?")
cr1 = input(true, title="Show Crosses up/down Senkou Span A (26 Period) and Senkou Span B (52 Period)?")

//Definitions for Tenkan-Sen (9 Period), Kinjun-Sen (26 Period), Chinkou Span (Lagging Line)
donchian(len) => avg(lowest(len), highest(len))
turning = donchian(turningPeriods)
standard = donchian(standardPeriods)
leadingSpan1 = avg(turning, standard)
leadingSpan2 = donchian(leadingSpan2Periods)

//Crosses up/down Tenkan-Sen (9 Period) and Kinjun-Sen (26 Period)
crossUpleadingSpan1leadingSpan2 = leadingSpan1[1] < leadingSpan2[1] and leadingSpan1 > leadingSpan2 ? 1 : 0
crossDnleadingSpan1leadingSpan2 = leadingSpan1[1] > leadingSpan2[1] and leadingSpan1 < leadingSpan2 ? 1 : 0
cupA = crossUpleadingSpan1leadingSpan2 == 1 ? crossUpleadingSpan1leadingSpan2 : 0
cdnB = crossDnleadingSpan1leadingSpan2 == 1 ? crossDnleadingSpan1leadingSpan2 : 0

//First Definition for Ability to Color Cloud based on Trend.
leadingSpan1Above = leadingSpan1 >= leadingSpan2 ? 1 : na
leadingSpan2Below = leadingSpan1 <= leadingSpan2 ? 1 : na
//Next 4 lines are code used as plots in order to Color Cloud based on Trend
span1plotU = leadingSpan1Above ? leadingSpan1 : na
span2plotU = leadingSpan1Above ? leadingSpan2 : na

span1plotD = leadingSpan2Below ? leadingSpan1 : na
span2plotD = leadingSpan2Below ? leadingSpan2 : na

col = leadingSpan1 >= leadingSpan2 ? lime : red

//plots for 3 lines other than cloud.
plot(sts and turning ? turning : na, title = 'Tenkan-Sen (9 Period)', linewidth=1, color=lime)
plot(sks and standard ? standard : na, title = 'Kinjun-Sen (26 Period)', linewidth=1, color=fuchsia)
plot(sll and close ? close : na, title='Chinkou Span (Lagging Line)', linewidth=1, offset = -displacement, color=aqua)
//Cloud Lines Plot Statements - ***Regular Lines to Fill in Break in Gap
plot(sc and leadingSpan1 ? leadingSpan1 : na, title = 'Senkou Span A (26 Period) Cloud', style=line, linewidth=1, offset = displacement, color=col)
plot(sc and leadingSpan2 ? leadingSpan2 : na, title = 'Senkou Span B (52 Period) Cloud', style=line, linewidth=1, offset = displacement, color=col)
//Cloud Lines Plot Statements - ***linebr to create rules for change in Shading
p1 = plot(sc and span1plotU ? span1plotU  : na, title = 'Senkou Span A (26 Period) Above Span B Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p2 = plot(sc and span2plotU ? span2plotU  : na, title = 'Senkou Span B (52 Period) Below Span A Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p3 = plot(sc and span1plotD ? span1plotD  : na, title = 'Senkou Span A (26 Period) Below Span B Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
p4 = plot(sc and span2plotD ? span2plotD  : na, title = 'Senkou Span B (52 Period) Above Span A Cloud', style=linebr, linewidth=1, offset = displacement, color=col)
//Fills that color cloud based on Trend.
fill(p1, p2, color=lime, transp=70, title='Kumo (Cloud)')
fill(p3, p4, color=red, transp=70, title='Kumo (Cloud)')
//Arrow Plots At Tenkan-Sen (9 Period) and Kinjun-Sen (26 Period)


plotshape(cr1 and cupA ? cupA : na,title="Low Plots-Triangle Up", offset=0, style=shape.arrowup, location=location.belowbar, color=teal, transp=0)
plotshape(cr1 and cdnB ? cdnB : na,title="High Plots-Triangle Down", offset=0, style=shape.arrowdown, location=location.abovebar, color=red, transp=0)