89 lines
2.1 KiB
JavaScript
89 lines
2.1 KiB
JavaScript
'use strict';
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/*global require, setInterval, clearInterval, __plugin, exports*/
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/*
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Experimental:
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Point at a block and issue the following ...
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/js var d = new Drone();
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/js var clock = new LCDClock(d);
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/js clock.start24();
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... start the clock...
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/js clock.stop24();
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... stops the clock...
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*/
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var blocks = require('blocks');
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exports.LCDClock = function(drone, fgColor,bgColor,border) {
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var lastSecs = [0,0,0,0],
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world = drone.world,
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intervalId = -1;
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function update(secs) {
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var digits = [0,0,0,0],
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s = secs % 60,
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m = (secs - s) / 60;
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digits[3] = s%10;
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digits[2] = (s-digits[3])/10;
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digits[1] = m%10;
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digits[0] = (m-digits[1])/10;
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//
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// updating all 4 digits each time is expensive
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// only update digits which have changed (in most cases - just 1)
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//
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if (digits[3] != lastSecs[3]){
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drone
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.right(14)
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.blocktype(''+digits[3],fgColor,bgColor, true)
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.left(14);
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}
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if (digits[2] != lastSecs[2]){
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drone
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.right(10)
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.blocktype(''+digits[2],fgColor,bgColor, true)
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.left(10);
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}
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if (digits[1] != lastSecs[1]){
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drone
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.right(4)
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.blocktype(''+digits[1], fgColor, bgColor, true)
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.left(4);
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}
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if (digits[0] != lastSecs[0]){
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drone
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.blocktype(''+digits[0], fgColor, bgColor, true);
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}
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lastSecs[0] = digits[0];
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lastSecs[1] = digits[1];
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lastSecs[2] = digits[2];
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lastSecs[3] = digits[3];
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}
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if ( typeof bgColor == 'undefined' ) {
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bgColor = blocks.wool.black;
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}
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if ( typeof fgColor == 'undefined' ) {
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fgColor = blocks.wool.white ; // white wool
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}
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if ( border ) {
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drone.box(border,21,9,1);
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drone.up().right();
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}
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drone.blocktype('00:00', fgColor, bgColor, true);
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return {
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start24: function( ) {
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function tick() {
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var rolloverMins = 24*60,
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mcTime = __plugin.canary ? world.totalTime : world.time,
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timeOfDayInMins = Math.floor(((mcTime + 6000) % 24000) / 16.6667);
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timeOfDayInMins = timeOfDayInMins % rolloverMins;
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update( timeOfDayInMins );
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};
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intervalId = setInterval(tick, 800);
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},
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stop24: function() {
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clearInterval( intervalId );
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}
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};
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};
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