dominionator/src/draw.ts

import { DominionCard } from "./types.ts";

const imageCache: Record<string, HTMLImageElement> = {};
export const loadImage = (
	key: string,
	src: string
): Promise<HTMLImageElement> => {
	return new Promise((resolve) => {
		if (key in imageCache && imageCache[key]) {
			resolve(imageCache[key]);
		}
		const img = new Image();
		img.onload = () => {
			imageCache[key] = img;
			resolve(img);
		};
		img.src = src;
	});
};

const imageList = [
	{
		key: "card",
		src: "/assets/CardColorOne.png",
	},
];

for (const imageInfo of imageList) {
	const { key, src } = imageInfo;
	await loadImage(key, src);
}

export const getImage = (key: string) => {
	const image = imageCache[key];
	if (!image) {
		throw Error(`Tried to get an invalid image ${key}`);
	}
	return image;
};

export const drawCard = (
	context: CanvasRenderingContext2D,
	card: DominionCard
): Promise<void> => {
	if (card.orientation === "card") {
		return drawStandardCard(context, card);
	} else {
		return drawLandscapeCard(context, card);
	}
};

const drawStandardCard = async (
	context: CanvasRenderingContext2D,
	card: DominionCard
): Promise<void> => {
	const w = context.canvas.width;
	const h = context.canvas.height;
	context.save();
	context.fillStyle = "brown";
	context.drawImage(getImage("card"), 0, 0);
	context.restore();
};

const drawLandscapeCard = async (
	context: CanvasRenderingContext2D,
	card: DominionCard
): Promise<void> => {
	// TODO: everything
};