smartgame/js/Rect.js

import Vec2 from './Vec2';

export default class Rect {
	constructor(pos = new Vec2(), size = new Vec2()) {
		this.pos = pos;
		this.size = size;
	}

	draw(ctx) {
		ctx.moveTo(this.left, this.top);
		ctx.lineTo(this.right, this.top);
		ctx.lineTo(this.right, this.bottom);
		ctx.lineTo(this.left, this.bottom);
		ctx.closePath();
		ctx.stroke();
	}

	get top() {
		return this.pos.y;
	}
	set top(n) {
		this.pos.y = n;
	}

	get bottom() {
		return this.pos.y + this.size.y;
	}
	set bottom(n) {
		this.pos.y = n - this.size.y;
	}

	get left() {
		return this.pos.x;
	}
	set left(n) {
		this.pos.x = n;
	}

	get right() {
		return this.pos.x + this.size.x;
	}
	set right(n) {
		this.pos.x = n - this.size.x;
	}
}