mcopy/app/lib/mscript/index.js

476 lines
12 KiB
JavaScript

'use strict';
/** @module lib/mscript */
let fs;
let input;
/** object mscript */
const mscript = {};
/**
* Check for the presence of specific arguments in process
* argv
*
* @param {string} shrt Short version of argument or flag
* @param {string} lng Long version of argument or flag
*
* @return {boolean} Is flag present
*/
mscript.arg = function arg (shrt, lng) {
if (process.argv.indexOf(shrt) !== -1 ||
process.argv.indexOf(lng) !== -1) {
return true;
}
return false;
};
/**
* Check for the position of specific arguments in process
* argv
*
* @param {string} shrt Short version of argument or flag
* @param {string} lng Long version of argument or flag
*
* @return {boolean} Position of arg or flag, for locating input
*/
mscript.arg_pos = function arg_pos (shrt, lng) {
var pos = -1;
pos = process.argv.indexOf(shrt);
if (pos === -1) {
pos = process.argv.indexOf(lng);
}
return pos;
};
mscript.black = '0,0,0';
mscript.cmd = [
'CF',
'PF',
'BF',
'CB',
'PB',
'BB'
];
mscript.alts = {
'CF' : ['CAMERA FORWARD', 'CAM FORWARD'],
'PF' : ['PROJECTOR FORWARD', 'PROJ FORWARD'],
'BF': ['BLACK FORWARD', 'BLACK', 'BLANK FORWARD', 'BLANK'],
'CB' : ['CAMERA BACKWARD', 'CAM BACKWARD', 'CAMERA BACK', 'CAM BACK'],
'PB' : ['PROJECTOR FORWARD', 'PROJ FORWARD', 'PROJECTOR BACK', 'PROJ BACK'],
'BB' : ['BLACK BACKWARD', 'BLACK BACK', 'BLANK BACK'],
'L ' : ['LIGHT', 'COLOR', 'LAMP'],
'F ' : ['FADE']
};
mscript.state = {};
/**
* Clear the state object
*/
mscript.state_clear = function state_clear () {
mscript.state = {
cam : 0,
proj : 0,
color : '',
loops : [],
rec : -1
};
};
/**
*
*/
mscript.alts_unique = function alts_unique () {
var ids = Object.keys(mscript.alts),
all = [];
for (var i = 0; i < ids.length; i++) {
if (all.indexOf(ids[i]) === -1) {
all.push(ids[i]);
} else {
mscript.fail("Can't compile");
}
}
};
/**
*
*/
mscript.interpret = function interpret (text, callback) {
mscript.state_clear();
if (typeof text === 'undefined') {
mscript.fail('No input');
}
var lines = text.split('\n'),
two = '',
arr = [],
light = [],
target = 0,
dist = 0, //?
output = {};
for (var i = 0; i < lines.length; i++) {
lines[i] = lines[i].replace(/\t+/g, ""); //strip tabs
lines[i] = lines[i].trim(); //remove excess whitespace before and after command
two = lines[i].substring(0, 2);
if (mscript.cmd.indexOf(two) !== -1) {
if (mscript.state.loops.length > 0) {
//hold generated arr in state loop array
mscript.state.loops[mscript.state.rec].arr
.push.apply(mscript.state.loops[mscript.state.rec].arr,
mscript.str_to_arr(lines[i],
two));
mscript.state.loops[mscript.state.rec].light
.push.apply(mscript.state.loops[mscript.state.rec].light,
mscript.light_to_arr(lines[i],
two));
} else {
arr.push.apply(arr, mscript.str_to_arr(lines[i], two));
light.push.apply(light, mscript.light_to_arr(lines[i], two))
}
} else if (lines[i].substring(0, 4) === 'LOOP') {
mscript.state.rec++;
mscript.state.loops[mscript.state.rec] = {
arr : [],
light : [],
cam : 0,
proj : 0,
cmd : lines[i] + ''
};
} else if (lines[i].substring(0, 2) === 'L ') {
mscript.light_state(lines[i]);
} else if (lines[i].substring(0, 3) === 'END') {
for (var x = 0; x < mscript.loop_count(mscript.state.loops[mscript.state.rec].cmd); x++) {
if (mscript.state.rec === 0) {
arr.push.apply(arr, mscript.state.loops[mscript.state.rec].arr);
light.push.apply(light, mscript.state.loops[mscript.state.rec].light);
} else if (mscript.state.rec >= 1) {
mscript.state.loops[mscript.state.rec - 1].arr
.push.apply(mscript.state.loops[mscript.state.rec - 1].arr,
mscript.state.loops[mscript.state.rec].arr);
mscript.state.loops[mscript.state.rec - 1].light
.push.apply(mscript.state.loops[mscript.state.rec - 1].light,
mscript.state.loops[mscript.state.rec].light);
}
}
mscript.state_update('END', mscript.loop_count(mscript.state.loops[mscript.state.rec].cmd));
delete mscript.state.loops[mscript.state.rec];
mscript.state.rec--;
} else if (lines[i].substring(0, 3) === 'CAM') { //directly go to that frame (black?)
target = parseInt(lines[i].split('CAM ')[1]);
if (mscript.state.loops.length > 0) {
if (target > mscript.state.cam) {
dist = target - mscript.state.cam;
for (var x = 0; x < dist; x++) {
mscript.state.loops[mscript.state.rec].arr.push('BF');
mscript.state.loops[mscript.state.rec].light.push(mscript.black);
mscript.state_update('BF');
}
} else {
dist = mscript.state.cam - target;
for (var x = 0; x < dist; x++) {
mscript.state.loops[mscript.state.rec].arr.push('BB');
mscript.state.loops[mscript.state.rec].light.push(mscript.black);
mscript.state_update('BB');
}
}
} else {
if (target > mscript.state.cam) {
dist = target - mscript.state.cam;
for (var x = 0; x < dist; x++) {
arr.push('BF');
light.push(mscript.black);
mscript.state_update('BF');
}
} else {
dist = mscript.state.cam - target;
for (var x = 0; x < dist; x++) {
arr.push('BB');
light.push(mscript.black);
mscript.state_update('BB');
}
}
}
} else if (lines[i].substring(0, 4) === 'PROJ') { //directly go to that frame
target = parseInt(lines[i].split('PROJ ')[1]);
if (mscript.state.loops.length > 0) {
if (target > mscript.state.proj) {
dist = target - mscript.state.proj;
for (var x = 0; x < dist; x++) {
mscript.state.loops[mscript.state.rec].arr.push('PF');
mscript.state.loops[mscript.state.rec].light.push('');
mscript.state_update('PF');
}
} else {
dist = mscript.state.proj - target;
for (var x = 0; x < dist; x++) {
mscript.state.loops[mscript.state.rec].arr.push('PB');
mscript.state.loops[mscript.state.rec].light.push('');
mscript.state_update('PB');
}
}
} else {
if (target > mscript.state.proj) {
dist = target - mscript.state.proj;
for (var x = 0; x < dist; x++) {
arr.push('PF');
light.push('');
mscript.state_update('PF');
}
} else {
dist = mscript.state.proj - target;
for (var x = 0; x < dist; x++) {
arr.push('PB');
light.push('');
mscript.state_update('PB');
}
}
}
} else if (lines[i].substring(0, 3) === 'SET') { //set that state
if (lines[i].substring(0, 7) === 'SET CAM') {
mscript.state.cam = parseInt(lines[i].split('SET CAM')[1]);
} else if (lines[i].substring(0, 8) === 'SET PROJ') {
mscript.state.proj = parseInt(lines[i].split('SET PROJ')[1]);
}
} else if (lines[i].substring(0, 1) === '#' || lines[i].substring(0, 2) === '//') {
//comments
//ignore while parsing
}
}
output.success = true;
output.arr = arr;
output.light = light;
output.cam = mscript.state.cam;
output.proj = mscript.state.proj;
if (typeof callback !== 'undefined') {
//should only be invoked by running mscript.tests()
callback(output);
} else {
return mscript.output(output);
}
};
/**
*
*/
mscript.last_loop = function last_loop () {
return mscript.state.loops[mscript.state.loops.length - 1];
};
/**
*
*/
mscript.parent_loop = function parent_loop () {
return mscript.state.loops[mscript.state.loops.length - 2];
};
/**
*
*/
mscript.state_update = function state_update (cmd, val) {
if (cmd === 'END') {
for (var i = 0; i < val; i++) {
if (mscript.state.rec === 0) {
mscript.state.cam += mscript.state.loops[mscript.state.rec].cam;
mscript.state.proj += mscript.state.loops[mscript.state.rec].proj;
} else if (mscript.state.rec >= 1) {
mscript.state.loops[mscript.state.rec - 1].cam += mscript.state.loops[mscript.state.rec].cam;
mscript.state.loops[mscript.state.rec - 1].proj += mscript.state.loops[mscript.state.rec].proj;
}
}
} else if (cmd === 'CF') {
if (mscript.state.loops.length < 1) {
mscript.state.cam++;
} else {
mscript.state.loops[mscript.state.rec].cam++;
}
} else if (cmd === 'CB') {
if (mscript.state.loops.length < 1) {
mscript.state.cam--;
} else {
mscript.state.loops[mscript.state.rec].cam--;
}
} else if (cmd === 'PF') {
if (mscript.state.loops.length < 1) {
mscript.state.proj++;
} else {
mscript.state.loops[mscript.state.rec].proj++;
}
} else if (cmd === 'PB') {
if (mscript.state.loops.length < 1) {
mscript.state.proj--;
} else {
mscript.state.loops[mscript.state.rec].proj--;
}
} else if (cmd === 'BF') {
if (mscript.state.loops.length < 1) {
mscript.state.cam++;
} else {
mscript.state.loops[mscript.state.rec].cam++;
}
} else if (cmd === 'BB') {
if (mscript.state.loops.length < 1) {
mscript.state.cam--;
} else {
mscript.state.loops[mscript.state.rec].cam++;
}
} else if (cmd === 'L ') {
}
};
/**
*
*/
mscript.str_to_arr = function str_to_arr (str, cmd) {
var cnt = str.split(cmd),
c = parseInt(cnt[1]),
arr = [];
if (cnt[1] === '') {
c = 1;
} else {
c = parseInt(cnt[1]);
}
for (var i = 0; i < c; i++) {
arr.push(cmd);
mscript.state_update(cmd);
}
return arr;
};
/**
*
*/
mscript.light_state = function light_state (str) {
//add parsers for other color spaces
var color = str.replace('L ', '').trim();
mscript.state.color = color;
};
/**
*
*/
mscript.light_to_arr = function light_to_arr (str, cmd) {
var cnt = str.split(cmd),
c = parseInt(cnt[1]),
arr = [];
if (cnt[1] === '') {
c = 1;
} else {
c = parseInt(cnt[1]);
}
for (var i = 0; i < c; i++) {
if (cmd === 'CF'
|| cmd === 'CB') {
arr.push(mscript.state.color);
} else if (cmd === 'BF'
|| cmd === 'BB') {
arr.push(mscript.black);
} else {
arr.push('');
}
}
return arr;
};
/**
*
*/
mscript.loop_count = function loop_count (str) {
return parseInt(str.split(' ')[1]);
};
mscript.fade_count = function fade_count (str) {
return parseInt(str.split(' ')[1]);
}
/**
*
*/
mscript.fail = function fail (reason) {
console.error(JSON.stringify({success: false, error: true, msg : reason}));
if (process) process.exit();
};
/**
*
*/
mscript.output = function output (data) {
var json = true; //default
if (mscript.arg('-j', '--json')) {
json = true;
}
if (mscript.arg('-t', '--text')) {
json = false;
}
if (json) {
console.log(JSON.stringify(data));
} else {
var ids = Object.keys(data);
for (var i = 0; i < ids.length; i++) {
console.log(ids[i] + ': ' + data[ids[i]]);
}
}
};
/**
*
*/
mscript.init = function init () {
if (mscript.arg('-t', '--tests')) {
return mscript.tests();
}
if (mscript.arg('-v', '--verbose')) {
console.time('mscript');
}
if (mscript.arg('-c', '--cam')) {
mscript.state.cam = parseInt(process.argv[mscript.arg_pos('-c', '--cam') + 1]);
}
if (mscript.arg('-p', '--proj')) {
mscript.state.proj = parseInt(process.argv[mscript.arg_pos('-p', '--proj') + 1]);
}
if (mscript.arg('-f', '--file')) {
input = process.argv[mscript.arg_pos('-f', '--file') + 1];
mscript.interpret(fs.readFileSync(input, 'utf8'));
} else {
mscript.interpret(input);
}
if (mscript.arg('-v', '--verbose')) {
console.timeEnd('mscript');
}
};
if (typeof document === 'undefined'
&& typeof module !== 'undefined'
&& !module.parent) {
//node script
fs = require('fs');
input = process.argv[2];
mscript.init();
} else if (typeof module !== 'undefined' && module.parent) {
//module
fs = require('fs');
module.exports = mscript;
} else {
//web
}
/*
CAM # - go to camera frame #
PROJ # - go to projector frame #
SET CAM # - sets camera count to #
SET PROJ # - sets projector count to #
LOOP # - begin loop, can nest recursively, # times
END LOOP - (or END) closes loop
L #RGB - sets light to rgb value
FADE
CF - Camera forwards
PF - Projector forwards
BF - Black forwards
CB - Camera backwards
PB - Projector backwards
BB - Black backwards
*/