Launch Pad Setup

//@version=6
// Inspired by DeepVue's Launch Pad indicator
// https://deepvue.com/indicators/launch-pad-the-early-entry-technique/
indicator("Launch Pad Setup", shorttitle="Launch Pad", overlay=true, max_labels_count=500)

// =============================================================================
// LAUNCH PAD SETUP INDICATOR
// =============================================================================
// Reverse-engineered from DeepVue's Launch Pad indicator
// https://deepvue.com/indicators/launch-pad-the-early-entry-technique/
//
// The Launch Pad fires when price consolidates tightly near all three MAs,
// signaling a potential breakout. This equilibrium between buyers and sellers
// typically precedes a directional move.
//
// Signal Logic:
// - Closing price must be within threshold% of ALL THREE moving averages:
//   * 21-period Simple Moving Average (SMA)
//   * 50-period Simple Moving Average (SMA)
//   * 65-period Exponential Moving Average (EMA)
// =============================================================================

// === INPUTS ===
grpSignal = "Signal Settings"
threshold = input.float(3.0, "Proximity Threshold (%)", minval=0.5, maxval=10.0, step=0.5, group=grpSignal, tooltip="Price must be within this percentage of all three MAs to trigger signal")

grpMA = "Moving Averages"
showMAs = input.bool(false, "Show Moving Averages", group=grpMA)
ma1Length = input.int(21, "Fast SMA Length", minval=1, group=grpMA)
ma2Length = input.int(50, "Medium SMA Length", minval=1, group=grpMA)
ma3Length = input.int(65, "Slow EMA Length", minval=1, group=grpMA)

grpVisual = "Visual Settings"
signalColor = input.color(color.lime, "Signal Color", group=grpVisual)
showLabel = input.bool(false, "Show 'Launch Pad' Label", group=grpVisual)

grpMAColors = "Moving Average Colors"
ma1Color = input.color(color.new(color.blue, 30), "21 SMA Color", group=grpMAColors)
ma2Color = input.color(color.new(color.orange, 30), "50 SMA Color", group=grpMAColors)
ma3Color = input.color(color.new(color.purple, 30), "65 EMA Color", group=grpMAColors)

// === CALCULATE MOVING AVERAGES ===
sma21 = ta.sma(close, ma1Length)
sma50 = ta.sma(close, ma2Length)
ema65 = ta.ema(close, ma3Length)

// === LAUNCH PAD SIGNAL LOGIC ===
// Calculate percentage distance from each MA
thresholdDecimal = threshold / 100.0

dist21 = math.abs(close - sma21) / sma21
dist50 = math.abs(close - sma50) / sma50
dist65 = math.abs(close - ema65) / ema65

// Signal fires when price is within threshold of ALL THREE MAs
launchPadSignal = dist21 <= thresholdDecimal and dist50 <= thresholdDecimal and dist65 <= thresholdDecimal

// === PLOT MOVING AVERAGES ===
plot(showMAs ? sma21 : na, "21 SMA", color=ma1Color, linewidth=2)
plot(showMAs ? sma50 : na, "50 SMA", color=ma2Color, linewidth=2)
plot(showMAs ? ema65 : na, "65 EMA", color=ma3Color, linewidth=2)

// === PLOT SIGNAL ===
// Plot the signal marker (green X below candle, matching DeepVue style)
plotchar(launchPadSignal, title="Launch Pad Signal", location=location.belowbar, color=signalColor, char="🚀", size=size.tiny)

// Optional text label
if showLabel and launchPadSignal
    label.new(bar_index, low, "Launch Pad", style=label.style_label_up, color=color.new(signalColor, 80), textcolor=signalColor, size=size.small)

// === INFO TABLE ===
grpTable = "Info Table"
showTable = input.bool(true, "Show Info Table", group=grpTable)
tablePosition = input.string("top_right", "Table Position", options=["top_left", "top_center", "top_right", "middle_left", "middle_center", "middle_right", "bottom_left", "bottom_center", "bottom_right"], group=grpTable)

tablePos = switch tablePosition
    "top_left" => position.top_left
    "top_center" => position.top_center
    "top_right" => position.top_right
    "middle_left" => position.middle_left
    "middle_center" => position.middle_center
    "middle_right" => position.middle_right
    "bottom_left" => position.bottom_left
    "bottom_center" => position.bottom_center
    "bottom_right" => position.bottom_right
    => position.top_right

var table infoTable = table.new(tablePos, 2, 5, bgcolor=color.new(color.black, 80), border_width=1)

if showTable and barstate.islast
    // Header
    table.cell(infoTable, 0, 0, "Launch Pad", text_color=signalColor, text_size=size.small)
    table.cell(infoTable, 1, 0, launchPadSignal ? "ACTIVE" : "—", text_color=launchPadSignal ? signalColor : color.gray, text_size=size.small)
    
    // MA distances
    table.cell(infoTable, 0, 1, "21 SMA", text_color=ma1Color, text_size=size.tiny)
    table.cell(infoTable, 1, 1, str.tostring(dist21 * 100, "#.##") + "%", text_color=dist21 <= thresholdDecimal ? color.green : color.red, text_size=size.tiny)
    
    table.cell(infoTable, 0, 2, "50 SMA", text_color=ma2Color, text_size=size.tiny)
    table.cell(infoTable, 1, 2, str.tostring(dist50 * 100, "#.##") + "%", text_color=dist50 <= thresholdDecimal ? color.green : color.red, text_size=size.tiny)
    
    table.cell(infoTable, 0, 3, "65 EMA", text_color=ma3Color, text_size=size.tiny)
    table.cell(infoTable, 1, 3, str.tostring(dist65 * 100, "#.##") + "%", text_color=dist65 <= thresholdDecimal ? color.green : color.red, text_size=size.tiny)
    
    // Threshold
    table.cell(infoTable, 0, 4, "Threshold", text_color=color.white, text_size=size.tiny)
    table.cell(infoTable, 1, 4, str.tostring(threshold, "#.#") + "%", text_color=color.white, text_size=size.tiny)

// === ALERTS ===
alertcondition(launchPadSignal, title="Launch Pad Signal", message="{{ticker}}: Launch Pad setup detected - price within threshold of 21 SMA, 50 SMA, and 65 EMA")
alertcondition(launchPadSignal and not launchPadSignal[1], title="New Launch Pad Signal", message="{{ticker}}: NEW Launch Pad setup - early entry opportunity detected")