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Various progress

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This commit is contained in:
Bán Dénes 2020-06-28 22:35:53 +02:00
parent 8d6be0ea00
commit fad615045a
6 changed files with 135 additions and 65 deletions
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32
src/assert.js
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@ -24,16 +24,28 @@ const detect_unexpected = exports.detect_unexpected = (obj, name, expected) => {
}
}
const xy = exports.xy = (raw, name) => {
assert(type(raw) == 'array' && raw.length == 2, `Field "${name}" should be an array of length 2!`)
const x = raw[0] || 0
const y = raw[1] || 0
assert(type(x) == 'number' && type(y) == 'number', `Field "${name}" should contain numbers!`)
return {x, y}
const numarr = exports.numarr = (raw, name, length) => {
assert(type(raw) == 'array' && raw.length == length, `Field "${name}" should be an array of length ${length}!`)
raw = raw.map(val => val || 0)
raw.map(val => assert(type(val) == 'number', `Field "${name}" should contain numbers!`))
return raw
}
exports.anchor = (raw, name, points={}) => {
detect_unexpected(raw, name, ['ref', 'shift', 'rotate'])
const xy = exports.xy = (raw, name) => numarr(raw, name, 2)
exports.wh = (raw, name) => {
if (!Array.isArray(raw)) raw = [raw, raw]
return a.xy(raw, name)
}
exports.trbl = (raw, name) => {
if (!Array.isArray(raw)) raw = [raw, raw, raw, raw]
if (raw.length == 2) raw = [raw[1], raw[0], raw[1], raw[0]]
return numarr(raw, name, 4)
}
exports.anchor = (raw, name, points={}, check_unexpected=true) => {
if (check_unexpected) detect_unexpected(raw, name, ['ref', 'shift', 'rotate'])
let a = new Point()
if (raw.ref !== undefined) {
assert(points[raw.ref], `Unknown point reference "${raw.ref}" in anchor "${name}"!`)
@ -41,8 +53,8 @@ exports.anchor = (raw, name, points={}) => {
}
if (raw.shift !== undefined) {
const xyval = xy(raw.shift, name + '.shift')
a.x += xyval.x
a.y += xyval.y
a.x += xyval[0]
a.y += xyval[1]
}
if (raw.rotate !== undefined) {
a.r += sane(raw.rotate || 0, name + '.rotate', 'number')