/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

@Observed
export class OffsetModel {
  // 当前移动偏移量 X
  public currentX: number;
  // 当前移动偏移量 Y
  public currentY: number;
  // 最后的偏移量 X
  public lastX: number = 0;
  // 最后的偏移量 Y
  public lastY: number = 0;

  constructor(currentX: number = 0, currentY: number = 0) {
    this.currentX = currentX;
    this.currentY = currentY;
  }

  reset(): void {
    this.currentX = 0;
    this.currentY = 0;
    this.lastX = 0;
    this.lastY = 0;
  }

  stash(): void {
    this.lastX = this.currentX;
    this.lastY = this.currentY;
  }

  toString(): string {
    return `[currentX: ${this.currentX} currentY: ${this.currentY} lastX: ${this.lastX} lastY: ${this.lastY}]`;
  }
}