build/ludus.mjs

@@ -2,221 +2,8 @@ import init from "./out.mjs"
 
 const mod = await init()
 
-let result = null
-
 export function run (source) {
-  const output = mod.ludus(source).value
-  // console.log(output)
-  result = JSON.parse(output)
-  return result
+  const result = mod.ludus(source).value
+  console.log(result)
+  return JSON.parse(result)
 }
-
-export function stdout () {
-  return result.io.console.data
-}
-
-export function turtle_commands () {
-  return result.io.turtle.data
-}
-
-export function p5_calls () {
-  return p5_call_list
-}
-
-export function svg () {
-  
-}
-
-const turtle_init = {
-  position: [0, 0],
-  heading: 0,
-  pendown: true,
-  pencolor: "white",
-  penwidth: 1,
-  visible: true
-}
-
-const colors = {
-	black: [0, 0, 0, 255],
-	silver: [192, 192, 192, 255],
-	gray: [128, 128, 128, 255],
-	white: [255, 255, 255, 255],
-	maroon: [128, 0, 0, 255],
-	red: [255, 0, 0, 255],
-	purple: [128, 0, 128, 255],
-	fuchsia: [255, 0, 255, 255],
-	green: [0, 128, 0, 255],
-	lime: [0, 255, 0, 255],
-	olive: [128, 128, 0, 255],
-	yellow: [255, 255, 0, 255],
-	navy: [0, 0, 128, 255],
-	blue: [0, 0, 255, 255],
-	teal: [0, 128, 128, 255],
-	aqua: [0, 255, 25, 255],
-}
-
-let turtle_states = [turtle_init]
-let background_color = "black"
-
-function last_state () {
-  return turtle_states[turtle_states.length - 1]
-}
-
-function add (v1, v2) {
-  const [x1, y1] = v1
-  const [x2, y2] = v2
-  return [x1 + x2, y1 + y2]
-}
-
-function mult (vector, scalar) {
-  const [x, y] = vector
-  return [x * scalar, y * scalar]
-}
-
-function unit_of (heading) {
-  const turns = -heading + 0.25
-  const radians = turn_to_rad(turns)
-  [Math.cos (radians), Math.sin(radians)]
-}
-
-function command_to_state (previous, command) {
-  const verb = command[0]
-  switch (verb) {
-    case "goto": {
-      const [_, x, y] = command
-      return {...previous, position: [x, y]}
-    }
-    case "home": {
-      return {...previous, position: [0, 0], heading: 0}
-    }
-    case "right": {
-      const [_, angle] = command
-      const {heading} = previous
-      return {...previous, heading: heading + angle}
-    }
-    case "left": {
-      const [_, angle] = command
-      const {heading} = previous
-      return {...previous, heading: heading - angle}
-    }
-    case "forward": {
-      const [_, steps] = command
-      const {heading, position} = previous
-      const unit = unit_of(heading)
-      const move = mult(unit, steps)
-      return {...previous, position: add(position, move)}
-    }
-    case "back": {
-      const [_, steps] = command
-      const {heading, position} = previous
-      const unit = unit_of(heading)
-      const move = mult(unit, -steps)
-      return {...previous, position: add(position, move)}
-    }
-    case "penup": {
-      return {...previous, pendown: false}
-    }
-    case "pendown": {
-      return {...previous, pendown: true}
-    }
-    case "pendwith": {
-      const [_, width] = command
-      return {...previous, penwidth: width}
-    }
-    case "pencolor": {
-      if (command.length = 2) {
-        const [_, color] = command
-        return {...previous, pencolor: color}
-      } else {
-        const [_, r, g, b, a] = command
-        return {...previous, pencolor: [r, g, b, a]}
-      }
-    }
-    case "setheading": {
-      const [_, heading] = command
-      return {...previous, heading: heading}
-    }
-    case "loadstate": {
-      const [_, x, y, heading, visible, pendown, penwidth] = command
-      // there are 7 fixed-arity arguments
-      // color will either be the last one or four
-      let pencolor = command.slice(7)
-      // if there's one, it's a string, unpack it
-      if (pencolor.length = 1) pencolor = pencolor[0]
-      return {position: [x, y], heading, visible, pendown, penwidth, pencolor}
-    }
-    case "show": {
-      return {...position, visible: true}
-    }
-    case "hide": {
-      return {...position, visible: false}
-    }
-    case "background": {
-      let color = command.slice(1)
-      if (color.lengh = 1) color = color[0]
-      background_color = color
-      return
-    }
-  }
-}
-
-function are_eq (v1, v2) {
-  const [x1, y1] = v1
-  const [x2, y2] = v2
-  return (x1 === x2) && (y1 === y2)
-}
-
-function state_to_call (prev, curr) {
-  
-}
-
-const turtle_radius = 20
-
-const turtle_angle = 0.385
-
-const turtle_color = [255, 255, 255, 150]
-
-let p5_call_list = []
-
-function add_p5_call (call) {
-  p5_call_list.push(call)
-}
-
-function rotate (vector, heading) {
-  const radians = turn_to_rad(heading)
-  const [x, y] = vector
-  return [
-    (x * cos (radians)) - (y * sin (radians)),
-    (x * sin (radians)) + (y * cos (radians))
-  ]
-}
-
-function turn_to_rad (heading) {
-  heading * 2 * Math.PI
-}
-
-function render_turtle () {
-  const state = last_state ()
-  if (!state.visible) return
-  const [r, g, b, a] = turtle_color
-  add_call("fill", r, g, b, a)
-  const {heading, pencolor: [pen_r, pen_g, pen_b, pen_a], position: [x, y], pendown} = state
-  const origin = [0, turtle_radius]
-  const [x1, y1] = origin
-  const [x2, y2] = rotate(origin, turtle_angle)
-  const [x3, y3] = rotate(origin, -turtle_angle)
-  add_p5_call(["push"])
-  add_p5_call(["translate", x, y])
-  add_p5_call(["rotate", turn_to_rad(heading)])
-  add_p5_call(["noStroke"])
-  add_p5_call(["beginShape"])
-  add_p5_call(["vertex", x1, y1])
-  add_p5_call(["vertex", x2, y2])
-  add_p5_call(["vertex", x3, y3])
-  add_p5_call(["endShape"])
-  add_p5_call(["stroke", pen_r, pen_g, pen_b, pen_a])
-  if (pendown) add_p5_call(["line", 0, 0, x1, y1])
-  add_p5_call(["pop"])
-}
-
-

build/out.mjs

@@ -6489,7 +6489,7 @@ var __emscripten_stack_alloc = (a0) => (__emscripten_stack_alloc = wasmExports['
 var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'])();
 var ___cxa_is_pointer_type = createExportWrapper('__cxa_is_pointer_type', 1);
 var dynCall_jiji = Module['dynCall_jiji'] = createExportWrapper('dynCall_jiji', 5);
-var ___emscripten_embedded_file_data = Module['___emscripten_embedded_file_data'] = 1822420;
+var ___emscripten_embedded_file_data = Module['___emscripten_embedded_file_data'] = 1840592;
 function invoke_i(index) {
   var sp = stackSave();
   try {

build/test.mjs

@@ -1,9 +1,3 @@
 import {run} from "./ludus.mjs"
 
-console.log(run(`
-
-forward! (100)
-right! (0.25)
-print! ("foobar")
-    
-`))
+console.log(run(`let foo = 42; "{foo} bar"`))