"use strict";
class TransformMatrix {
  constructor() {
    this.reset();
  }
  reset() {
    this.a = 1;
    this.b = 0;
    this.c = 0;
    this.d = 1;
    this.tx = 0;
    this.ty = 0;
    this.stack = [];
  }
  translate(dx, dy) {
    this.tx += this.a * dx + this.c * dy;
    this.ty += this.b * dx + this.d * dy;
  }
  scale(sx, sy, cx = 0, cy = 0) {
    this.translate(cx, cy);
    this.a *= sx;
    this.b *= sx;
    this.c *= sy;
    this.d *= sy;
    this.translate(-cx, -cy);
  }
  toArray() {
    return [this.a, this.b, this.c, this.d, this.tx, this.ty];
  }
  // 用于调试的字符串表示
  toString() {
    return `[${this.a.toFixed(2)}, ${this.b.toFixed(2)}, ${this.c.toFixed(2)}, ${this.d.toFixed(2)}, ${this.tx.toFixed(1)}, ${this.ty.toFixed(1)}]`;
  }
  // 克隆方法
  clone() {
    const clone = new TransformMatrix();
    clone.a = this.a;
    clone.b = this.b;
    clone.c = this.c;
    clone.d = this.d;
    clone.tx = this.tx;
    clone.ty = this.ty;
    return clone;
  }
  // 添加点坐标转换方法
  transformPoint(x, y) {
    return {
      x: this.a * x + this.c * y + this.tx,
      y: this.b * x + this.d * y + this.ty
    };
  }
  // 添加逆矩阵转换方法
  invertPoint(x, y) {
    const det = this.a * this.d - this.b * this.c;
    if (Math.abs(det) < 1e-4) {
      return { x, y };
    }
    return {
      x: (this.d * (x - this.tx) - this.c * (y - this.ty)) / det,
      y: (this.a * (y - this.ty) - this.b * (x - this.tx)) / det
    };
  }
}
exports.TransformMatrix = TransformMatrix;
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