142 lines
6.7 KiB
JavaScript
142 lines
6.7 KiB
JavaScript
"use strict";
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var _const = require("../const.js"), Point = require("../Point.js");
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const tempPoints = [new Point.Point(), new Point.Point(), new Point.Point(), new Point.Point()];
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class Rectangle {
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/**
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* @param x - The X coordinate of the upper-left corner of the rectangle
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* @param y - The Y coordinate of the upper-left corner of the rectangle
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* @param width - The overall width of the rectangle
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* @param height - The overall height of the rectangle
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*/
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constructor(x = 0, y = 0, width = 0, height = 0) {
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this.x = Number(x), this.y = Number(y), this.width = Number(width), this.height = Number(height), this.type = _const.SHAPES.RECT;
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}
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/** Returns the left edge of the rectangle. */
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get left() {
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return this.x;
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}
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/** Returns the right edge of the rectangle. */
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get right() {
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return this.x + this.width;
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}
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/** Returns the top edge of the rectangle. */
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get top() {
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return this.y;
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}
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/** Returns the bottom edge of the rectangle. */
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get bottom() {
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return this.y + this.height;
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}
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/** A constant empty rectangle. */
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static get EMPTY() {
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return new Rectangle(0, 0, 0, 0);
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}
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/**
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* Creates a clone of this Rectangle
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* @returns a copy of the rectangle
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*/
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clone() {
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return new Rectangle(this.x, this.y, this.width, this.height);
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}
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/**
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* Copies another rectangle to this one.
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* @param rectangle - The rectangle to copy from.
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* @returns Returns itself.
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*/
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copyFrom(rectangle) {
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return this.x = rectangle.x, this.y = rectangle.y, this.width = rectangle.width, this.height = rectangle.height, this;
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}
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/**
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* Copies this rectangle to another one.
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* @param rectangle - The rectangle to copy to.
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* @returns Returns given parameter.
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*/
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copyTo(rectangle) {
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return rectangle.x = this.x, rectangle.y = this.y, rectangle.width = this.width, rectangle.height = this.height, rectangle;
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}
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/**
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* Checks whether the x and y coordinates given are contained within this Rectangle
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* @param x - The X coordinate of the point to test
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* @param y - The Y coordinate of the point to test
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* @returns Whether the x/y coordinates are within this Rectangle
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*/
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contains(x, y) {
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return this.width <= 0 || this.height <= 0 ? !1 : x >= this.x && x < this.x + this.width && y >= this.y && y < this.y + this.height;
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}
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/**
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* Determines whether the `other` Rectangle transformed by `transform` intersects with `this` Rectangle object.
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* Returns true only if the area of the intersection is >0, this means that Rectangles
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* sharing a side are not overlapping. Another side effect is that an arealess rectangle
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* (width or height equal to zero) can't intersect any other rectangle.
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* @param {Rectangle} other - The Rectangle to intersect with `this`.
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* @param {Matrix} transform - The transformation matrix of `other`.
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* @returns {boolean} A value of `true` if the transformed `other` Rectangle intersects with `this`; otherwise `false`.
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*/
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intersects(other, transform) {
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if (!transform) {
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const x02 = this.x < other.x ? other.x : this.x;
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if ((this.right > other.right ? other.right : this.right) <= x02)
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return !1;
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const y02 = this.y < other.y ? other.y : this.y;
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return (this.bottom > other.bottom ? other.bottom : this.bottom) > y02;
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}
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const x0 = this.left, x1 = this.right, y0 = this.top, y1 = this.bottom;
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if (x1 <= x0 || y1 <= y0)
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return !1;
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const lt = tempPoints[0].set(other.left, other.top), lb = tempPoints[1].set(other.left, other.bottom), rt = tempPoints[2].set(other.right, other.top), rb = tempPoints[3].set(other.right, other.bottom);
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if (rt.x <= lt.x || lb.y <= lt.y)
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return !1;
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const s = Math.sign(transform.a * transform.d - transform.b * transform.c);
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if (s === 0 || (transform.apply(lt, lt), transform.apply(lb, lb), transform.apply(rt, rt), transform.apply(rb, rb), Math.max(lt.x, lb.x, rt.x, rb.x) <= x0 || Math.min(lt.x, lb.x, rt.x, rb.x) >= x1 || Math.max(lt.y, lb.y, rt.y, rb.y) <= y0 || Math.min(lt.y, lb.y, rt.y, rb.y) >= y1))
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return !1;
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const nx = s * (lb.y - lt.y), ny = s * (lt.x - lb.x), n00 = nx * x0 + ny * y0, n10 = nx * x1 + ny * y0, n01 = nx * x0 + ny * y1, n11 = nx * x1 + ny * y1;
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if (Math.max(n00, n10, n01, n11) <= nx * lt.x + ny * lt.y || Math.min(n00, n10, n01, n11) >= nx * rb.x + ny * rb.y)
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return !1;
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const mx = s * (lt.y - rt.y), my = s * (rt.x - lt.x), m00 = mx * x0 + my * y0, m10 = mx * x1 + my * y0, m01 = mx * x0 + my * y1, m11 = mx * x1 + my * y1;
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return !(Math.max(m00, m10, m01, m11) <= mx * lt.x + my * lt.y || Math.min(m00, m10, m01, m11) >= mx * rb.x + my * rb.y);
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}
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/**
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* Pads the rectangle making it grow in all directions.
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* If paddingY is omitted, both paddingX and paddingY will be set to paddingX.
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* @param paddingX - The horizontal padding amount.
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* @param paddingY - The vertical padding amount.
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* @returns Returns itself.
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*/
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pad(paddingX = 0, paddingY = paddingX) {
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return this.x -= paddingX, this.y -= paddingY, this.width += paddingX * 2, this.height += paddingY * 2, this;
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}
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/**
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* Fits this rectangle around the passed one.
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* @param rectangle - The rectangle to fit.
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* @returns Returns itself.
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*/
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fit(rectangle) {
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const x1 = Math.max(this.x, rectangle.x), x2 = Math.min(this.x + this.width, rectangle.x + rectangle.width), y1 = Math.max(this.y, rectangle.y), y2 = Math.min(this.y + this.height, rectangle.y + rectangle.height);
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return this.x = x1, this.width = Math.max(x2 - x1, 0), this.y = y1, this.height = Math.max(y2 - y1, 0), this;
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}
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/**
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* Enlarges rectangle that way its corners lie on grid
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* @param resolution - resolution
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* @param eps - precision
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* @returns Returns itself.
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*/
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ceil(resolution = 1, eps = 1e-3) {
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const x2 = Math.ceil((this.x + this.width - eps) * resolution) / resolution, y2 = Math.ceil((this.y + this.height - eps) * resolution) / resolution;
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return this.x = Math.floor((this.x + eps) * resolution) / resolution, this.y = Math.floor((this.y + eps) * resolution) / resolution, this.width = x2 - this.x, this.height = y2 - this.y, this;
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}
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/**
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* Enlarges this rectangle to include the passed rectangle.
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* @param rectangle - The rectangle to include.
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* @returns Returns itself.
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*/
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enlarge(rectangle) {
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const x1 = Math.min(this.x, rectangle.x), x2 = Math.max(this.x + this.width, rectangle.x + rectangle.width), y1 = Math.min(this.y, rectangle.y), y2 = Math.max(this.y + this.height, rectangle.y + rectangle.height);
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return this.x = x1, this.width = x2 - x1, this.y = y1, this.height = y2 - y1, this;
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}
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}
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Rectangle.prototype.toString = function() {
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return `[@pixi/math:Rectangle x=${this.x} y=${this.y} width=${this.width} height=${this.height}]`;
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};
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exports.Rectangle = Rectangle;
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//# sourceMappingURL=Rectangle.js.map
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