Add pi and directions

builtins.ts

@@ -9,8 +9,8 @@ fillEllipse,
 outlineEllipse,
 setPixelColor,
 } from "./window.ts";
-import { Font, font } from "./font.ts";
-import { keyDown, keyPressed, keyReleased } from "./keyboard.ts";
+import { CHAR, Font, font } from "./font.ts";
+import { K, keyDown, keyPressed, keyReleased } from "./keyboard.ts";
 import { addToContext, runCode } from "./runcode.ts";
 import { resetRepl } from "./repl.ts";
 import { COLOR } from "./colors.ts";
@@ -134,6 +134,10 @@ const faux = {
 		getMapSheet(mapSheet)[y*64+x] = [sprSheet, spr];
 	},
 	// Input
+	[CHAR.UP]: K.ARROW_UP,
+	[CHAR.DOWN]: K.ARROW_DOWN,
+	[CHAR.LEFT]: K.ARROW_LEFT,
+	[CHAR.RIGHT]: K.ARROW_RIGHT,
 	btn: keyDown,
 	btnp: keyPressed,
 	btnr: keyReleased,
@@ -176,6 +180,7 @@ const faux = {
 	sqrt: Math.sqrt,
 	abs: Math.abs,
 	rand: Math.random,
+	[CHAR.PI]: Math.PI,
 	// Other
 	code: (n: number) => {
 		return runCode(getCodeSheet(n));