NintSPC TXT Optimizer

nintspc_opt.js

// NintSPC TXT Optimizer by tcdw
// FreeBSD License

var fs = require('fs');

var fileName = "card-33.txt";
var panfix = false;             // Fix Pannings for Kirby series SPC?
var smw = false;                // Fix Drums calling for SMW SPC?
var scanInst = true;            // Scan used instruments and drums and remove unused things?
var delAllComments = true;      // Delete all comments?

var results = "";
var lineSpliter = "\r\n";

replace = function(a, b, c) {    // Replace ALL
    return a.split(b).join(c);
}

dec2Hex = function(x) {
	return ((x < 16) ? ('0' + x.toString(16)).slice(-2) : (x.toString(16)).slice(-2)).toUpperCase();
}

fs.readFile(fileName, "utf8", function(err, asd) {
    if (err) throw err;
    tmpTXT = replace(asd, "\r", "");
    tmpTXT = "#0" + tmpTXT.split("#0")[1];
    asa = new Array();
    if (panfix) {
        tmpTXT = replace(tmpTXT, "y", "inv");
        for (i = 20; i > -1; i--) {
            tmpTXT = replace(tmpTXT, "inv" + i, "y" + (20 - i));
        }
    }
    if (smw) {
        for (i = 0; i < 30; i++) {
            num = i < 10 ? "0" + i : i;
            tmpTXT = replace(tmpTXT, "PATCH0" + num, "@" + i + " h0");
        }
        for (i = 0; i < 10; i++) {
            tmpTXT = replace(tmpTXT, "PERC00" + i + "N", "@" + (21 + i) + " h0 c");
            tmpTXT = replace(tmpTXT, "PERC00" + i + "X", "@" + (21 + i) + " h0 c");
        }
    }
    tmpTXT = replace(tmpTXT, "VCMD_PATCH", "$DA");
    tmpTXT = replace(tmpTXT, "VCMD_PANPOT", "$DB");
    tmpTXT = replace(tmpTXT, "VCMD_PAN_FADE", "$DC");
    tmpTXT = replace(tmpTXT, "VCMD_VIBRATO_ON", "$DE");
    tmpTXT = replace(tmpTXT, "VCMD_VIBRATO_OFF", "$DF");
    tmpTXT = replace(tmpTXT, "VCMD_MASTER_VOL_FADE", "$E1");
    tmpTXT = replace(tmpTXT, "VCMD_MASTER_VOLUME", "$E0");
    tmpTXT = replace(tmpTXT, "VCMD_SET_TEMPO", "$E2");
    tmpTXT = replace(tmpTXT, "VCMD_TEMPO_FADE", "$E3");
    tmpTXT = replace(tmpTXT, "VCMD_GLOBAL_TRANSPOSE", "$E4");
    tmpTXT = replace(tmpTXT, "VCMD_PERVOICE_TRANSPOSE", "$FA $02");
    tmpTXT = replace(tmpTXT, "VCMD_TREMOLO_ON", "$E5");
    tmpTXT = replace(tmpTXT, "VCMD_TREMOLO_OFF", "$E5 $00 $00 $00");
    tmpTXT = replace(tmpTXT, "VCMD_VOLUME", "$E7");
    tmpTXT = replace(tmpTXT, "VCMD_VOL_FADE", "$E8");
    tmpTXT = replace(tmpTXT, "VCMD_SUBROUTINE", "$E9");
    tmpTXT = replace(tmpTXT, "VCMD_VIBRATO_FADE", "$EA");
    tmpTXT = replace(tmpTXT, "VCMD_PITCHENV_TO", "$EB");
    tmpTXT = replace(tmpTXT, "VCMD_PITCHENV_FROM", "$EC");
    tmpTXT = replace(tmpTXT, "VCMD_PITCHENV_OFF", "$EB $00 $00 $00");
    tmpTXT = replace(tmpTXT, "VCMD_TUNING", "$EE");
    tmpTXT = replace(tmpTXT, "VCMD_ECHO_ON", "$EF");
    tmpTXT = replace(tmpTXT, "VCMD_ECHO_OFF", "$F0");
    tmpTXT = replace(tmpTXT, "VCMD_ECHO_PARAM", "$F1");
    tmpTXT = replace(tmpTXT, "VCMD_ECHO_VOL_FADE", "$F2");
    tmpTXT = replace(tmpTXT, "VCMD_PITCH_SLIDE", "$DD");
    tmpTXT = tmpTXT.split("\n");
    asas = "";
    if (delAllComments) {
        for (i = 0; i < tmpTXT.length; i++) {
            var lingshi = tmpTXT[i].split(";");
            results += lingshi[0] + lineSpliter;
        }
    } else {
        results = tmpTXT;
    }
    if (scanInst) {
        var scannedIL = "";
        for (i = 0; i < 256; i++) {
            if (i < 10) {
                fixedID = "00" + i;
            } else if (i >= 10 & i < 100) {
                fixedID = "0" + i;
            } else {
                fixedID = i;
            }
            if (results.indexOf("PATCH" + fixedID) != -1) {
                scannedIL += "\"PATCH" + fixedID + '="    ; ' + dec2Hex(i) + lineSpliter;
            }
            if (i <= 22 & results.indexOf("PERC" + fixedID) != -1) {
                scannedIL += "\"PERC" + fixedID + 'X="    ; ' + dec2Hex(i) + " + VCMD_PERC_PATCH_BASE value" + lineSpliter;
                scannedIL += "\"PERC" + fixedID + 'N="    ; ' + dec2Hex(i) + " + VCMD_PERC_PATCH_BASE value" + lineSpliter;
            }
        }
        results = scannedIL + results;
    }
    fs.writeFileSync("converted_" + fileName, results);
});