63 lines
1.6 KiB
TypeScript
63 lines
1.6 KiB
TypeScript
import { Data, LineShape, RayShape } from 'types'
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import * as vec from 'utils/vec'
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import BaseSession from './base-session'
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import commands from 'state/commands'
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import { current } from 'immer'
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import { getPage, getSelectedIds } from 'utils/utils'
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export default class DirectionSession extends BaseSession {
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delta = [0, 0]
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origin: number[]
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snapshot: DirectionSnapshot
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constructor(data: Data, point: number[]) {
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super(data)
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this.origin = point
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this.snapshot = getDirectionSnapshot(data)
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}
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update(data: Data, point: number[]) {
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const { shapes } = this.snapshot
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const page = getPage(data)
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for (let { id } of shapes) {
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const shape = page.shapes[id] as RayShape | LineShape
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shape.direction = vec.uni(vec.vec(shape.point, point))
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}
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}
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cancel(data: Data) {
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const page = getPage(data, this.snapshot.currentPageId)
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for (let { id, direction } of this.snapshot.shapes) {
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const shape = page.shapes[id] as RayShape | LineShape
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shape.direction = direction
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}
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}
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complete(data: Data) {
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commands.direct(data, this.snapshot, getDirectionSnapshot(data))
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}
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}
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export function getDirectionSnapshot(data: Data) {
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const { shapes } = getPage(current(data))
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let snapshapes: { id: string; direction: number[] }[] = []
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getSelectedIds(data).forEach((id) => {
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const shape = shapes[id]
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if ('direction' in shape) {
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snapshapes.push({ id: shape.id, direction: shape.direction })
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}
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})
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return {
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currentPageId: data.currentPageId,
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shapes: snapshapes,
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}
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}
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export type DirectionSnapshot = ReturnType<typeof getDirectionSnapshot>
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