Moving Average Crossover Cloud (TV)

//@version=5

indicator("MA Crossover Cloud", shorttitle="MA-X", overlay=true)

// --- 1. Define Inputs ---

// Input for the source price

src = input.source(close, "Price Source")

// Inputs for the MA lengths

length1 = input.int(10, "Length 1 (Faster MA)", minval=1)

length2 = input.int(20, "Length 2 (Slower MA)", minval=1)

// New input for the Alpha parameter, used ONLY by HWEMA

alphaInput = input.float(1.0, "HWEMA Alpha (Smoothing)", minval=0.01, maxval=1.0, step=0.01, group="HWEMA Settings")

// Input for selecting the MA types, now including HWEMA

typeOptions = input.string(title="Average Type Selection", 

     options=["SMA", "EMA", "WMA", "HullMA", "WildersMA", "HWEMA"], 

     defval="EMA")

// --- 2. Moving Average Custom Functions ---

// Hull Weighted Exponential Moving Average (HWEMA) function

hwema(src, len, alpha) =>

    wma = ta.wma(src, len)

    // The wema calculation needs to be slightly refactored for Pine Script v5 variable declaration rules

    var wema = 0.0

    wema := alpha * wma + (1 - alpha) * nz(wema[1])

    ta.hma(wema, len)

// Universal MA selector function, now includes HWEMA

getMA(type, source, length, alpha) =>

    switch type

        "SMA"      => ta.sma(source, length)

        "WMA"      => ta.wma(source, length)

        "WildersMA"=> ta.rma(source, length)

        "HullMA"   => ta.hma(source, length)

        "HWEMA"    => hwema(source, length, alpha)

        => ta.ema(source, length) 

// --- 3. Calculate MAs ---

ma1 = getMA(typeOptions, src, length1, alphaInput)

ma2 = getMA(typeOptions, src, length2, alphaInput)

// --- 4. Define Colors and Plotting ---

// Define standard colors for up/down

lineUpColor   = color.lime

lineDownColor = color.red

lineNeutralColor = color.gray

// --- UPDATED SLOPE-BASED COLOR LOGIC ---

// 🎯 Color MA1 based on its slope: rising (green) or falling (red)

// Checks if the current MA value is greater/less than the previous bar's value (ma1[1])

ma1Color = ma1 > ma1[1] ? lineUpColor : ma1 < ma1[1] ? lineDownColor : lineNeutralColor

// 🎯 Color MA2 based on its slope: rising (green) or falling (red)

ma2Color = ma2 > ma2[1] ? lineUpColor : ma2 < ma2[1] ? lineDownColor : lineNeutralColor

// Plot the two moving averages with dynamic slope-based colors

p1 = plot(ma1, title="MA 1", color=ma1Color, linewidth=2)

p2 = plot(ma2, title="MA 2", color=ma2Color, linewidth=2)

// --- 5. Cloud Plotting (Crossover Logic Maintained) ---

// Define cloud colors (using slightly transparent versions of the line colors)

cloudUpColor   = color.new(color.green, 85)

cloudDownColor = color.new(color.red, 85)

// The cloud remains based on the crossover relationship (MA1 > MA2)

fillColor = ma1 > ma2 ? cloudUpColor : cloudDownColor

fill(p1, p2, color=fillColor, title="MA Cloud")