Reorganize

io/sheet.ts

@@ -0,0 +1,56 @@
+import { getCart } from "./cart.ts";
+import { LinearGrid } from "../util/util.ts";
+// import { runCode, addToContext } from "./runcode.ts";
+
+// "code" | "spritesheet" | "map" | "sfx" | "patterns" | "fonts"
+export type Sheet = {
+	sheet_type: "code",
+	value: string,
+} | {
+	sheet_type: "spritesheet",
+	value: Array<Array<number>>,
+} | {
+	sheet_type: "map",
+	value: Array<[number, number]>,
+} | {
+	sheet_type: "none",
+	value: null,
+}
+export type SheetType = Sheet["sheet_type"];
+
+export const getSheet = (n: number): Sheet => {
+	return getCart()[n];
+}
+
+// deno-lint-ignore no-explicit-any
+export const setSheet = (n: number, type: SheetType, value: any) => {
+	return getCart()[n] = {sheet_type: type, value};
+}
+
+export const getCodeSheet = (sheet: number) => {
+	const {sheet_type, value} = getSheet(sheet);
+	if (sheet_type !== "code") {
+		throw "Trying to use a non-code sheet as code."
+	}
+	return value;
+}
+
+export const getSpriteSheet = (sheet: number) => {
+	const {sheet_type, value} = getSheet(sheet);
+	if (sheet_type !== "spritesheet") {
+		throw Error("Trying to use a non-sprite sheet as a spritesheet.");
+	}
+	while (value.length < 128) {
+		value.push(Array(64).fill(0));
+	}
+	return value;
+}
+
+export const getMapSheet = (sheet: number) => {
+	const {sheet_type, value} = getSheet(sheet);
+	if (sheet_type !== "map") {
+		throw "Trying to use a non-map sheet as a map."
+	}
+	sheet_type
+	return LinearGrid(value, 64);
+}