finger-drills.js

function addSet(strokes, iterations, drill) {
	if(drill == null) drill = []
	strokes = strokes.split('/')
	if(drill.length === 0) {
		drill.push.apply(drill, strokes)
		--iterations
	}
	strokes[0] = '\n' + strokes[0]
	for(let i=0; i<iterations; ++i) {
		drill.push.apply(drill, strokes)
	}
	drill.push(strokes[0])
	return drill
}

function generateFingerDrill(drills, iterations, name) {
	let out = []
	for(const drill of drills) addSet(drill, iterations, out)
	var exercise = new TypeJig.Exercise(out, 0, false, 'ordered');
	if(name) exercise.name = name
	else exercise.name = "Finger Drill: " + drills.join(' ')
	return exercise
}

function generateDreadedDuoDrill(section, drill, iterations) {
	let n = dreadedDuo[section-1].length
	let name = "Da Dreaded Dueling Digit Duo Drills"
	name += ' (Section ' + section + ', #' + drill + ' of ' + n + ')'
	let drills = [ dreadedDuo[section-1][drill-1] ]
	let exercise = generateFingerDrill(drills, iterations, name)
	return exercise;
}

function linkNextDrill(link, fields, updateFields) {
	var section = fields.section, drill = fields.drill;
	if(drill === dreadedDuo[section-1].length) {
		drill = 1;
		if(section === dreadedDuo.length) section = 1;
		else ++section;
	} else ++drill;
	let url = updateURLParameter(window.location.href, 'section', section);
	url = updateURLParameter(url, 'drill', drill);
	link.href = url;
	if(updateFields) {
		fields.section = section;
		fields.drill = drill;
	}
}

window.onload = function() {
	var fields = parseQueryString(document.location.search)
	fields.iterations = fields.iterations || 20;
	fields.actualWords = {unit: 'strokes per minute', u: 'SPM'}

	let exercise;
	if(fields.strokes) {
		const drills = fields.strokes.split(/\s+/)
		exercise = generateFingerDrill(drills, fields.iterations);
	} else if(fields.book === 'Stenotype Finger Technique') {
		let name = fields.book + ': ' + fields.section
		const drills = stenotypeFingerTechnique[fields.section]
		exercise = generateFingerDrill(drills, fields.iterations, name)
	} else {
		fields.section = Math.max(1, Math.min(fields.section || 1, dreadedDuo.length))
		fields.drill = Math.max(1, Math.min(fields.drill || 1, dreadedDuo[fields.section-1].length))
		exercise = generateDreadedDuoDrill(fields.section, fields.drill, fields.iterations);
	}

	var jig = setExercise(exercise.name, exercise, null, fields);

	var next = document.getElementById('new');
	if(fields.strokes || fields.book) next.parentNode.removeChild(next);
	else linkNextDrill(next, fields);
}

setTheme()