F-PLN.nas A320

# Airbus A3XX FMGC MCDU Bridge

# Copyright (c) 2019 Joshua Davidson (it0uchpods) and Nikolai V. Chr. (Necolatis)

# Lowercase "g" is a degree symbol in the MCDU font.
# wht = white, grn = green, blu = blue, amb = amber, yel = yellow
var left1 = [props.globals.initNode("MCDU[0]/F-PLN/left-1", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-1", "", "STRING")];
var left2 = [props.globals.initNode("MCDU[0]/F-PLN/left-2", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-2", "", "STRING")];
var left3 = [props.globals.initNode("MCDU[0]/F-PLN/left-3", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-3", "", "STRING")];
var left4 = [props.globals.initNode("MCDU[0]/F-PLN/left-4", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-4", "", "STRING")];
var left5 = [props.globals.initNode("MCDU[0]/F-PLN/left-5", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-5", "", "STRING")];
var left6 = [props.globals.initNode("MCDU[0]/F-PLN/left-6", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-6", "", "STRING")];
var left1s = [props.globals.initNode("MCDU[0]/F-PLN/left-1s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-1s", "", "STRING")];
var left2s = [props.globals.initNode("MCDU[0]/F-PLN/left-2s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-2s", "", "STRING")];
var left3s = [props.globals.initNode("MCDU[0]/F-PLN/left-3s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-3s", "", "STRING")];
var left4s = [props.globals.initNode("MCDU[0]/F-PLN/left-4s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-4s", "", "STRING")];
var left5s = [props.globals.initNode("MCDU[0]/F-PLN/left-5s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-5s", "", "STRING")];
var left6s = [props.globals.initNode("MCDU[0]/F-PLN/left-6s", "", "STRING"), props.globals.initNode("MCDU[1]/F-PLN/left-6s", "", "STRING")];
var showFromInd = [props.globals.initNode("MCDU[0]/F-PLN/show-from", 0, "BOOL"), props.globals.initNode("MCDU[1]/F-PLN/show-from", 0, "BOOL")];

var TMPY = 5;
var MAIN = 6;
var page = "";
var active_out = [nil, nil, props.globals.getNode("/FMGC/flightplan[2]/active")];
var num_out = [props.globals.getNode("/FMGC/flightplan[0]/num"), props.globals.getNode("/FMGC/flightplan[1]/num"), props.globals.getNode("/FMGC/flightplan[2]/num")];
var TMPYActive = [props.globals.getNode("/FMGC/internal/tmpy-active[0]"), props.globals.getNode("/FMGC/internal/tmpy-active[1]")];
var pageProp = [props.globals.getNode("/MCDU[0]/page", 1), props.globals.getNode("/MCDU[1]/page", 1)];

# Create text items
var StaticText = {
    new: func(type) {
        var in = {parents:[StaticText]};
        in.type = type;
        return in;
    },
    getText: func() {
        if (me.type == "discontinuity") {
            return "---F-PLN DISCONTINUITY--";
        } else if (me.type == "fplnEnd") {
            return "------END OF F-PLN------";
        } else if (me.type == "altnFplnEnd") {
            return "----END OF ALTN F-PLN---";
        } else if (me.type == "noAltnFpln") {
            return "------NO ALTN F-PLN-----";
        }
    },
    getColor: func() {
        return canvas_mcdu.WHITE;
    },
    type: nil,
    pushButtonLeft: func() {

    },
    pushButtonRight: func() {

    },
};

var MCDUText = {
    new: func(wp) {
        var in = {parents:[MCDUText]};
        in.wp = wp;
        return in;
    },
    getText: func(i) {
        return me.wp.wp_name;
    },
    getColor: func(i) {
        if (TMPYActive[i].getBoolValue()) {
            if (me.wp == fmgc.arrivalAirportI[i]) {
                return canvas_mcdu.WHITE;
            } else {
                return canvas_mcdu.YELLOW;
            }
        } else {
            if (me.wp == fmgc.arrivalAirportI[2]) {
                return canvas_mcdu.WHITE;
            } else {
                return canvas_mcdu.GREEN;
            }
        }
    },
    wp: nil,
    pushButtonLeft: func() {

    },
    pushButtonRight: func() {

    },
};

var FPLNLineComputer = {
    new: func(mcdu) {
        var in = {parents:[FPLNLineComputer]};
        in.mcdu = mcdu;
        printf("%d: Line computer created.", in.mcdu);
        return in;
    },
    index: 0,
    planList: [],
    destination: nil,
    destIndex: nil,
    planEnd: nil,
    planNoAlt: nil,
    lines: nil,
    output: [],
    mcdu: nil,
    enableScroll: 0,
    updatePlan: func(fpln) {
        printf("oops, this method is not ready yet");
        # Here you make the line instances and put them into me.planList
        me.checkIndex();
        me.updateScroll();
    },
    replacePlan: func(fpln, lines, destIndex) {
        # Here you set another plan, do this when changing plan on display or when destination changes
        printf("%d: replacePlan called for %d lines and destIndex %d", me.mcdu, lines, destIndex);
        me.planList = [];
        for (var j = 0; j < fpln.getPlanSize(); j += 1) {
            append(me.planList, MCDUText.new(fpln.getWP(j)));
        }
        me.destination = MCDUText.new(fpln.getWP(destIndex));
        me.planEnd = StaticText.new("fplnEnd");
        me.planNoAlt = StaticText.new("noAltnFpln");
        me.destIndex = destIndex;
        me.initScroll(lines);
    },
    initScroll: func(lines) {
        me.lines = lines;
        me.index = 0;
        me.maxItems = size(me.planList) + 2; # + 2 is for end of plan line and altn end of plan.
        me.enableScroll = lines < me.maxItems;
        printf("%d: scroll is %d. Size of plan is %d", me.mcdu, me.enableScroll, size(me.planList));
        me.updateScroll();
    },
    checkIndex: func() {
        printf("oops, this method is not ready yet");
        if (me.lines == MAIN) {
            me.extra = 2;
        } else {
            me.extra = 1
        }
        if (size(planList) < MAIN) {
            me.index = 0;
        } else if (me.index > size(planList) + me.extra + size(planList) - me.lines - 1) {
            me.index = size(planList) + me.extra + size(planList) - me.lines - 1;
        }
    },
    scrollDown: func() {
        printf("%d: scroll down", me.mcdu);
        me.extra = 1;
        if (!me.enableScroll) {
            me.index = 0;
        } else {
            me.index += 1;
            if (me.index > size(me.planList)+1) {
                me.index = 0;
            }
        }
        me.updateScroll();
    },
    scrollUp: func() {
        printf("%d: scroll up", me.mcdu);
        me.extra = 1;
        if (!me.enableScroll) {
            me.index = 0;
        } else {
            me.index -= 1;
            if (me.index < 0) {
                me.index = size(me.planList)+1;
            }
        }
        me.updateScroll();
    },
    updateScroll: func() {
        me.output = [];
        if (me.index <= size(me.planList)+1) {
            var i = 0;
            printf("%d: updating display from index %d", me.mcdu, me.index);
            for (i = me.index; i < math.min(size(me.planList), me.index + 5); i += 1) {
                append(me.output, me.planList[i]);
            }
            i-=1;
            printf("%d: populated until wp index %d", me.mcdu,i);
            if (i < me.destIndex and me.lines == MAIN) {
                # Destination has not been shown yet, now its time (if we show 6 lines)
                append(me.output, me.destination);
                printf("%d: added dest at bottom for total of %d lines", me.mcdu, size(me.output));
                return;
            } else if (size(me.output) < me.lines and (i == size(me.planList))) {
                # Show the end of plan
                append(me.output, me.planEnd);
                i += 1;
                printf("%d: added end, wp index=%d", me.mcdu, i);
                if (size(me.output) < me.lines and (i <= size(me.planList)+1)) {
                    append(me.output, me.planNoAlt);
                    printf("%d: added no-alt, wp index=%d", me.mcdu,i);
                    if (me.enableScroll and size(me.output) < me.lines) {
                        # We start wrapping
                        for (var j = 0; size(me.output) < me.lines; j += 1) {
                            append(me.output, me.planList[j]);
                        }

                    }
                }
            }
        }
        printf("%d: %d lines", me.mcdu, size(me.output));
    },
};

var MCDULines = [FPLNLineComputer.new(0), FPLNLineComputer.new(1)];

var slewFPLN = func(d, i) { # Scrolling function. d is -1 or 1 for direction, and i is instance.
    if (d == 1) {
        MCDULines[i].scrollUp();
    } else if (d == 0) {
        MCDULines[i].scrollDown();
    }
}

# Button and Inputs
var FPLNButton = func(s, key, i) {
    if (s == "L") {

    } else if (s == "R") {

    }
}

var notInDataBase = func(i) {
    if (getprop("/MCDU[" ~ i ~ "]/scratchpad") != "NOT IN DATABASE") {
        setprop("/MCDU[" ~ i ~ "]/last-scratchpad", getprop("/MCDU[" ~ i ~ "]/scratchpad"));
    }
    setprop("/MCDU[" ~ i ~ "]/scratchpad-msg", 1);
    setprop("/MCDU[" ~ i ~ "]/scratchpad", "NOT IN DATABASE");
}