c.MA multi Tf

// ————————————————————
// This source code is free to use/modify to your convenience.
// 3 MA multi timeframes

//@version=5
indicator("c.MA multi Tf", "c.MA_multi_tf", overlay=true,  precision=0)

// ———————————————————— Constants and Inputs {
// ————— Inputs

bool	ma1_show = input.bool(true, "MA.1", inline="ma1_a")
ma1_type = input.string("EMA", "", ["ALMA", "SMA", "EMA", "DEMA", "TEMA", "TEMA2", "SMMA (RMA)", "WMA", "VWMA", "HMA"], inline="ma1_a")
int		ma1_len = input.int(12, "len", minval=1, inline="ma1_a")
string	ma1_time = input.timeframe("30", "tframe", inline="ma1_a")

bool	ma2_show = input.bool(true, "MA.2", inline="ma2_a")
ma2_type = input.string("EMA", "", ["ALMA", "SMA", "EMA", "DEMA", "TEMA", "TEMA2", "SMMA (RMA)", "WMA", "VWMA", "HMA"], inline="ma2_a")
int		ma2_len = input.int(12, "len", minval=1, inline="ma2_a")
string	ma2_time = input.timeframe("120", "tframe", inline="ma2_a")

bool	ma3_show = input.bool(true, "MA.3", inline="ma3_a")
ma3_type = input.string("EMA", "", ["ALMA", "SMA", "EMA", "DEMA", "TEMA", "TEMA2", "SMMA (RMA)", "WMA", "VWMA", "HMA"], inline="ma3_a")
int		ma3_len = input.int(12, "len", minval=1, inline="ma3_a")
string	ma3_time = input.timeframe("240", "tframe", inline="ma3_a")

// }


// ———————————————————— Functions {
// TEMA chartschool version
_tma(src,len) =>
    ma1 = ta.ema(src, len)
    ma2 = ta.ema(ma1, len)
    ma3 = ta.ema(ma2, len)
    _tma = (3 * ma1) - (3 * ma2) + ma3

// MAs
_ma(src, len, maType) =>
    switch maType
        "ALMA" => ta.alma(src, len, 0.85, 6)
        "SMA" => ta.sma(src, len)
        "EMA" => ta.ema(src, len)
        "DEMA" => ta.ema(ta.ema(src,len),len)
        "TEMA" => ta.ema(ta.ema(ta.ema(src,len),len),len)        // TEMA Binance (Trix)
        "TEMA2" => _tma(src,len)                                // TEMA chartschool
        "SMMA (RMA)" => ta.rma(src, len)
        "WMA" => ta.wma(src, len)
        "VWMA" => ta.vwma(src, len)
        "HMA" => ta.hma(src,len)

//}


// ———————————————————— Calculations {
ma1_expr = _ma(close, ma1_len, ma1_type)
ma1_sig = request.security(syminfo.tickerid, ma1_time, ma1_expr, barmerge.gaps_on)

ma2_expr = _ma(close, ma2_len, ma2_type)
ma2_sig = request.security(syminfo.tickerid, ma2_time, ma2_expr, barmerge.gaps_on)

ma3_expr = _ma(close, ma3_len, ma3_type)
ma3_sig = request.security(syminfo.tickerid, ma3_time, ma3_expr, barmerge.gaps_on)

// }


// ———————————————————— Visuals {
plot(ma1_show ? ma1_sig : na, "MA.1", color.new(#ffeb3b, 16), 1)
plot(ma2_show ? ma2_sig : na, "MA.2", color.new(#005cff, 0), 1)
plot(ma3_show ? ma3_sig : na, "MA.3", color.new(#ff1100, 0), 1)

// }
// ————————————————————