Add sheet viewer page

builtins.ts

@@ -10,8 +10,17 @@ import { resetRepl } from "./repl.ts";
 import { COLOR } from "./colors.ts";
 import { getSheet, getCodeSheet } from "./sheet.ts";
 
+let spritesheet: number | null = null;
+
+export const useSpritesheet = (sheet: number) => {
+	spritesheet = sheet;
+}
+
 export const drawSprite = (x: number, y: number, spr: number) => {
-	const {sheet_type, value: sprites} = getSheet(2);
+	if (!spritesheet) {
+		return;
+	}
+	const {sheet_type, value: sprites} = getSheet(spritesheet);
 	if (sheet_type !== "spritesheet") {
 		throw "Trying to run a non-code sheet as code."
 	}
@@ -37,6 +46,7 @@ const faux = {
 		resetRepl();
 		clearScreen();
 	},
+	sprsht: useSpritesheet,
 	spr: drawSprite,
 	txt: drawText,
 	rect: fillRect,