src/math-extras/rectangleExtras.ts - dev - githubmirror/pixijs

src/math-extras/rectangleExtras.ts
82 строки2 KB
Zyie
chore: documentation overhaul with typedoc (#11423)
19 май 2025, 11:44
19 май 2025, 11:4434926f0
import { Rectangle } from '../maths/shapes/Rectangle';

/** @internal */
export const rectangleExtraMixins: Partial<Rectangle> = {
    containsRect(other: Rectangle): boolean
    {
        if (other.width <= 0 || other.height <= 0)
        {
            return other.x > this.x && other.y > this.y && other.right < this.right && other.bottom < this.bottom;
        }

        return other.x >= this.x && other.y >= this.y && other.right <= this.right && other.bottom <= this.bottom;
    },
    equals(other: Rectangle): boolean
    {
        if (other === this)
        {
            return true;
        }

        return (
            other
            && this.x === other.x
            && this.y === other.y
            && this.width === other.width
            && this.height === other.height
        );
    },
    intersection<T extends Rectangle>(other: Rectangle, outRect?: T): T
    {
        if (!outRect)
        {
            outRect = new Rectangle() as T;
        }

        const x0 = this.x < other.x ? other.x : this.x;
        const x1 = this.right > other.right ? other.right : this.right;

        if (x1 <= x0)
        {
            outRect.x = outRect.y = outRect.width = outRect.height = 0;

            return outRect;
        }

        const y0 = this.y < other.y ? other.y : this.y;
        const y1 = this.bottom > other.bottom ? other.bottom : this.bottom;

        if (y1 <= y0)
        {
            outRect.x = outRect.y = outRect.width = outRect.height = 0;

            return outRect;
        }

        outRect.x = x0;
        outRect.y = y0;
        outRect.width = x1 - x0;
        outRect.height = y1 - y0;

        return outRect;
    },
    union<T extends Rectangle>(other: Rectangle, outRect?: T): T
    {
        if (!outRect)
        {
            outRect = new Rectangle() as T;
        }

        const x1 = Math.min(this.x, other.x);
        const x2 = Math.max(this.x + this.width, other.x + other.width);
        const y1 = Math.min(this.y, other.y);
        const y2 = Math.max(this.y + this.height, other.y + other.height);

        outRect.x = x1;
        outRect.y = y1;
        outRect.width = x2 - x1;
        outRect.height = y2 - y1;

        return outRect;
    },
};