H

//version=5
indicator("H", overlay=true)

// 設定計算的周期
length = input(30, title="Length")

// 計算最近的高點和低點
highestHigh = ta.highest(high, length)
lowestLow = ta.lowest(low, length)

// 畫出支撐和壓力線
line.new(x1=bar_index[length - 2], y1=highestHigh, x2=bar_index, y2=highestHigh, color=color.red, width=2, extend=extend.right)
line.new(x1=bar_index[length - 2], y1=lowestLow, x2=bar_index, y2=lowestLow, color=color.blue, width=2, extend=extend.right)

// --- SAR 計算與背景顏色 ---
sar = ta.sar(0.3, 0.3, 0.11)
bgcolor(close > sar ? color.new(color.red, 80) : color.new(color.green, 80))
// Hide the SAR plot by setting color with full transparency using `color.new`
plot(sar, style=plot.style_cross, color=color.new(color.blue, 100), linewidth=2)

// --- 定義時間範圍 ---
var int startHour = 8
var int startMinute = 45
var int endHour = 13
var int endMinute = 45

// 取得當前時間
currentTime = timestamp("GMT+8", year, month, dayofmonth, hour, minute)
startTime = timestamp("GMT+8", year, month, dayofmonth, startHour, startMinute)
endTime = timestamp("GMT+8", year, month, dayofmonth, endHour, endMinute)

// 價差計算
ix0001_price = request.security("IX0001", "1", close)
txf1_price = request.security("TXF1!", "1", close)
price_diff = (ix0001_price - txf1_price) / txf1_price

// 判斷條件：價差達到正或負0.004%且在指定時間範圍內
positive_condition = (price_diff >= 0.004) and (currentTime >= startTime) and (currentTime <= endTime)
negative_condition = (price_diff <= -0.004) and (currentTime >= startTime) and (currentTime <= endTime)

// 根據條件變更背景顏色
bgcolor(positive_condition ? color.new(color.red, 40) : na)
bgcolor(negative_condition ? color.new(color.green, 40) : na)

// --- KD Divergence Marker for 9,3 ---
k_9 = ta.sma(ta.stoch(close, high, low, 9), 3)
d_9 = ta.sma(k_9, 3)

var float lastHighPrice_9 = na
var float lastLowPrice_9 = na
var float lastHighKD_9 = na
var float lastLowKD_9 = na

isTopDivergence_9 = (k_9 > 93 and close < lastHighPrice_9 and k_9 < lastHighKD_9)
isBottomDivergence_9 = (k_9 < 15 and close > lastLowPrice_9 and k_9 > lastLowKD_9)

if ta.crossover(k_9, 97)
lastHighPrice_9 := high
lastHighKD_9 := k_9

if ta.crossunder(k_9, 15)
lastLowPrice_9 := close
lastLowKD_9 := k_9

plotshape(series=isTopDivergence_9, location=location.abovebar, color=color.orange, style=shape.labeldown, text="頂部轉折")
plotshape(series=isBottomDivergence_9, location=location.belowbar, color=color.green, style=shape.labelup, text="底部轉折")

// --- KD Divergence Marker for 14,3 ---
k_14 = ta.sma(ta.stoch(close, high, low, 14), 3)
d_14 = ta.sma(k_14, 3)

var float lastHighPrice_14 = na
var float lastLowPrice_14 = na
var float lastHighKD_14 = na
var float lastLowKD_14 = na

isTopDivergence_14 = (k_14 > 93 and close < lastHighPrice_14 and k_14 < lastHighKD_14)
isBottomDivergence_14 = (k_14 < 15 and close > lastLowPrice_14 and k_14 > lastLowKD_14)

if ta.crossover(k_14, 97)
lastHighPrice_14 := high
lastHighKD_14 := k_14

if ta.crossunder(k_14, 15)
lastLowPrice_14 := close
lastLowKD_14 := k_14

plotshape(series=isTopDivergence_14, location=location.abovebar, color=color.orange, style=shape.labeldown, text="頂部轉折")
plotshape(series=isBottomDivergence_14, location=location.belowbar, color=color.green, style=shape.labelup, text="底部轉折")

// --- Range Breakout ---
// Define the range
range_length = 23
highest_high = ta.highest(high, range_length)
lowest_low = ta.lowest(low, range_length)

// Determine if price is within the range
isInRange = (close >= lowest_low and close <= highest_high)

// Track when price re-enters the range after leaving it
var bool leftRange = false

if close < lowest_low or close > highest_high
leftRange := true
if leftRange and close >= lowest_low and close <= highest_high
leftRange := false

// Plot range only when price is within range
plot(isInRange and not leftRange ? highest_high : na, title="最高盤整區間", color=color.red, linewidth=1, style=plot.style_stepline)
plot(isInRange and not leftRange ? lowest_low : na, title="最低盤整區間", color=color.green, linewidth=1, style=plot.style_stepline)

// --- Volume Crossover Indicator ---
short_ma_length = 5
long_ma_length = 10
volume_multiplier = 3.5

short_ma_volume = ta.sma(volume, short_ma_length)
long_ma_volume = ta.sma(volume, long_ma_length)

current_volume_ratio = volume / short_ma_volume
crossover_condition = ta.crossover(short_ma_volume, long_ma_volume)
volume_condition = current_volume_ratio > volume_multiplier

plotshape(series=crossover_condition and volume_condition and isInRange, location=location.abovebar, color=color.red, style=shape.labelup, text="變盤")