76 lines
2.1 KiB
JavaScript
76 lines
2.1 KiB
JavaScript
/*
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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 Drone = require('../drone').Drone;
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var blocktype = require('../blocktype');
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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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if ( typeof bgColor == 'undefined' ) {
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bgColor = '35:15'; // black wool
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}
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if ( typeof fgColor == 'undefined' ) {
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fgColor = 35 ; // 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);
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return {
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start24: function( ) {
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var clock = this;
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function tick() {
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var rolloverMins = 24*60;
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var timeOfDayInMins = Math.floor(((world.totalTime + 6000) % 24000) / 16.6667);
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timeOfDayInMins = timeOfDayInMins % rolloverMins;
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console.log('Minecraft time: ' + world.totalTime + ' timeOfDayInMins: ' + timeOfDayInMins);
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clock.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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update: function(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.right(14).blocktype(''+digits[3],fgColor,bgColor).left(14);
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if (digits[2] != lastSecs[2])
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drone.right(10).blocktype(''+digits[2],fgColor,bgColor).left(10);
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if (digits[1] != lastSecs[1])
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drone.right(4).blocktype(''+digits[1], fgColor, bgColor).left(4);
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if (digits[0] != lastSecs[0])
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drone.blocktype(''+digits[0], fgColor, bgColor);
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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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};
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};
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