From 1142bfb8963e7f27c908891eebe678bd3d5135ee Mon Sep 17 00:00:00 2001
From: John Alanbrook <john@pockle.world>
Date: Thu, 25 Jul 2024 17:53:53 -0500
Subject: [PATCH] made engine into a small bootstrap script

---
 scripts/base.js      |   5 -
 scripts/debug.js     |   2 +-
 scripts/engine.js    | 671 ++++---------------------------------------
 scripts/entity.js    |   7 +-
 scripts/profile.js   |  46 ++-
 scripts/prosperon.js | 425 +++++++++++++++++++++++++++
 scripts/render.js    | 204 ++++++++++++-
 7 files changed, 714 insertions(+), 646 deletions(-)
 create mode 100644 scripts/prosperon.js

diff --git a/scripts/base.js b/scripts/base.js
index 950f6a1..db21c52 100644
--- a/scripts/base.js
+++ b/scripts/base.js
@@ -824,10 +824,6 @@ Object.defineProperty(String.prototype, 'sub', {
   }
 });
 
-Object.defineProperty(String.prototype, 'rm', {
-  value: function(index, endidx = index+1) { return this.slice(0,index) + this.slice(endidx); }
-});
-
 Object.defineProperty(String.prototype, 'updir', {
   value: function() {
     if (this.lastIndexOf('/') === this.length-1)
@@ -1647,7 +1643,6 @@ Math.sign = function(n) { return n >= 0 ? 1 : -1; }
 return {
   convert,
   time,
-  json,
   Vector,
   bbox,
   yaml
diff --git a/scripts/debug.js b/scripts/debug.js
index f41babc..128cbe6 100644
--- a/scripts/debug.js
+++ b/scripts/debug.js
@@ -50,7 +50,7 @@ debug.draw = function() {
 		                   "EDIT", [0, 0], 1);
 }
 
-function assert(op, str = `assertion failed [value '${op}']`)
+var assert = function(op, str = `assertion failed [value '${op}']`)
 {
   if (!op)
     console.panic(str);
diff --git a/scripts/engine.js b/scripts/engine.js
index 4563e3f..d841d8a 100644
--- a/scripts/engine.js
+++ b/scripts/engine.js
@@ -1,5 +1,9 @@
 "use math";
 
+Object.defineProperty(String.prototype, 'rm', {
+  value: function(index, endidx = index+1) { return this.slice(0,index) + this.slice(endidx); }
+});
+
 Object.defineProperty(String.prototype, "tolast", {
   value: function (val) {
     var idx = this.lastIndexOf(val);
@@ -25,12 +29,23 @@ Object.defineProperty(String.prototype, "folder", {
 
 globalThis.Resources = {};
 
-Resources.rm_fn = function(fnstr, text)
+Resources.rm_fn = function(fn, text)
 {
-  while (text.match(fnstr)) {
-  }  
-}
+  var reg = new RegExp(fn.source + "\\s*\\(");
+  var match;
+  while (match = text.match(reg)) {
+    var last = match.index+match[0].length;
+    var par = 1;
+    while (par !== 0) {
+      if (text[last] === '(') par++;
+      if (text[last] === ')') par--;
+      last++;
+    }
+    text = text.rm(match.index, last);
+  }
 
+  return text;
+}
 Resources.rm_fn.doc = "Remove calls to a given function from a given text script.";
 
 Resources.replpath = function (str, path) {
@@ -58,6 +73,9 @@ Resources.replstrs = function (path) {
   var stem = path.dir();
   
   // remove console statements
+  script = Resources.rm_fn(/console\.(spam|info|warn|error)/, script);
+  script = Resources.rm_fn(/profile\.(cache|frame|endcache|endframe)/, script);
+  script = Resources.rm_fn(/assert/, script);
   //script = script.replace(/console\.(.*?)\(.*?\)/g, '');
   //script = script.replace(/assert\(.*?\)/g, '');
 
@@ -122,8 +140,6 @@ Resources.find_script = function (file) {
   return find_ext(file, Resources.scripts);
 };
 
-var t_units = ["ns", "us", "ms", "s", "m", "h"];
-
 console.transcript = "";
 console.say = function (msg) {
   msg += "\n";
@@ -200,638 +216,55 @@ console.doc = {
 
 globalThis.global = globalThis;
 
-var use_prof = "USE";
+var use_cache = {};
 
-profile.addreport = function(){};
-
-function use(file, env = {}, script) {
+globalThis.use = function(file, env = {}, script) {
   file = Resources.find_script(file);
-  var st = profile.now();
+  profile.cache("USE", file);
 
-  if (use.cache[file]) {
-    var ret = use.cache[file].call(env);
-    profile.addreport(use_prof, file, st);
+  if (use_cache[file]) {
+    var ret = use_cache[file].call(env);
     return;
   }
   script ??= Resources.replstrs(file);
+
   script = `(function() { var self = this; ${script}; })`;
   var fn = os.eval(file, script);
-  use.cache[file] = fn;
+  use_cache[file] = fn;
   var ret = fn.call(env);
-  profile.addreport(use_prof, file, st);
+  profile.endcache();
   return ret;
 }
 
-use.cache = {};
+function stripped_use (file, env = {}, script) {
+  file = Resources.find_script(file);
 
-global.check_registers = function (obj) {
-  for (var reg in Register.registries) {
-    if (typeof obj[reg] === 'function') {
-      var fn = obj[reg].bind(obj);
-      var name = obj.ur ? obj.ur.name : obj.toString();
-      obj.timers.push(Register.registries[reg].register(fn, name));
-    }
+  if (use_cache[file]) {
+    var ret = use_cache[file].call(env);
+    return;
   }
-      
-  for (var k in obj) {
-    if (!k.startsWith("on_")) continue;
-    var signal = k.fromfirst("on_");
-    Event.observe(signal, obj, obj[k]);
-  }
-};
+  script ??= Resources.replstrs(file);
 
-Object.assign(global, use("scripts/base"));
-global.obscure("global");
-global.mixin("scripts/profile");
-global.mixin("scripts/render");
-global.mixin("scripts/debug");
+  script = `(function() { var self = this; ${script}; })`;
+  var fn = os.eval(file, script);
+  var ret = fn.call(env);
+  profile.endcache();
+  return ret;
+}
 
-var frame_t = profile.secs(profile.now());
-
-var sim = {};
-sim.mode = "play";
-sim.play = function () {
-  this.mode = "play";
-  os.reindex_static();
-};
-sim.playing = function () {
-  return this.mode === "play";
-};
-sim.pause = function () {
-  this.mode = "pause";
-};
-sim.paused = function () {
-  return this.mode === "pause";
-};
-sim.step = function () {
-  this.mode = "step";
-};
-sim.stepping = function () {
-  return this.mode === "step";
-};
-
-var physlag = 0;
-
-var gggstart = game.engine_start;
-game.engine_start = function (s) {
-  game.startengine = 1;
-  gggstart(
-    function () {
-      global.mixin("scripts/sound.js");
-      world_start();
-      window.set_icon(os.make_texture("icons/moon.gif"));
-      Object.readonly(window.__proto__, "vsync");
-      Object.readonly(window.__proto__, "enable_dragndrop");
-      Object.readonly(window.__proto__, "enable_clipboard");
-      Object.readonly(window.__proto__, "high_dpi");
-      Object.readonly(window.__proto__, "sample_count");
-      s();
-
-      shape.quad = {
-        pos: os.make_buffer([0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0], 0),
-        verts: 4,
-        uv: os.make_buffer([0, 1, 1, 1, 0, 0, 1, 0], 2),
-        index: os.make_buffer([0, 1, 2, 2, 1, 3], 1),
-        count: 6,
-      };
-
-      shape.triangle = {
-        pos: os.make_buffer([0, 0, 0, 0.5, 1, 0, 1, 0, 0], 0),
-        uv: os.make_buffer([0, 0, 0.5, 1, 1, 0], 2),
-        verts: 3,
-        count: 3,
-        index: os.make_buffer([0, 2, 1], 1),
-      };
-      
-      shape.centered_quad = {
-        pos: os.make_buffer([-0.5, -0.5, -0.5, 0.5, -0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, -0.5], 0),
-        verts: 4,
-        uv: os.make_buffer([0,1,1,1,0,0,1,0],2),
-        index: os.make_buffer([0,1,2,2,1,3],1),
-        count: 6
-      };
-
-      render.init();
-
-      camera = make_camera();
-      camera.transform.pos = [0,0,-100];
-      camera.mode = "keep";
-      camera.break = "fit";
-      camera.size = game.size;
-      gamestate.camera = camera;
-
-      hudcam = make_camera();
-      hudcam.near = 0;
-      hudcam.size = camera.size;
-      hudcam.mode = "keep";
-      hudcam.break = "fit";
-
-      appcam = make_camera();
-      appcam.near = 0;
-      appcam.size = window.size;
-      appcam.transform.pos = [window.size.x,window.size.y,-100];
-      screencolor = render.screencolor();
-    },
-    process,
-    window.size.x,
-    window.size.y,
-  );
-};
-
-game.startengine = 0;
-var frames = [];
-
-prosperon.release_mode = function()
+function bare_use(file)
 {
-  prosperon.debug = false;
-  mum.debug = false;
-  debug.kill();
-}
-prosperon.debug = true;
-
-// Returns an array in the form of [left, bottom, right, top] in pixels of the camera to render to
-// Camera viewport is [left,bottom,right,top] in relative values
-function camviewport()
-{
-  var aspect = (this.viewport[2]-this.viewport[0])/(this.viewport[3]-this.viewport[1])*window.size.x/window.size.y;
-  var raspect = this.size.x/this.size.y;
-
-  var left = this.viewport[0]*window.size.x;
-  var bottom = this.viewport[1]*window.size.y;
-
-  var usemode = this.mode;
-
-  if (this.break && this.size.x > window.size.x && this.size.y > window.size.y)
-    usemode = this.break;
-
-  if (usemode === "fit")
-    if (raspect < aspect) usemode = "height";
-    else usemode = "width";
-
-  switch(usemode) {
-    case "stretch":
-    case "expand":
-      return [0, 0, window.size.x, window.size.y];
-    case "keep":
-      return [left, bottom, left+this.size.x, bottom+this.size.y];
-    case "height":
-      var ret = [left, 0, this.size.x*(window.size.y/this.size.y), window.size.y];
-      ret[0] = (window.size.x-(ret[2]-ret[0]))/2;
-      return ret;
-    case "width":
-      var ret = [0, bottom, window.size.x, this.size.y*(window.size.x/this.size.x)];
-      ret[1] = (window.size.y-(ret[3]-ret[1]))/2;
-      return ret;
-  }
-
-  return [0, 0, window.size.x, window.size.y];
+  var script = io.slurp(file);
+  script = `(function() { var self = this; ${script}; })`;
+  Object.assign(globalThis, os.eval(file, script).call(globalThis));
 }
 
-// pos is pixels on the screen, lower left[0,0]
-function camscreen2world(pos)
-{
-  var view = this.screen2cam(pos);
-  view.x *= this.size.x;
-  view.y *= this.size.y;
-  view = view.sub([this.size.x/2, this.size.y/2]);
-  view = view.add(this.pos.xy);
-  return view;
-}
+profile.enabled = false;
 
-camscreen2world.doc = "Convert a view position for a camera to world."
+bare_use("scripts/base.js");
+bare_use("scripts/profile.js");
 
-function screen2cam(pos)
-{
-  var viewport = this.view();
-  var width = viewport[2]-viewport[0];
-  var height = viewport[3]-viewport[1];
-  var left = pos.x-viewport[0];
-  var bottom = pos.y-viewport[1];
-  var p = [left/width, bottom/height];
-  return p;
-}
+if (!profile.enabled)
+  use = stripped_use;
 
-screen2cam.doc = "Convert a screen space position in pixels to a normalized viewport position in a camera."
-
-function make_camera()
-{
-  var cam = world.spawn();
-  cam.near = 0.1;
-  cam.far = 1000;
-  cam.ortho = true;
-  cam.viewport = [0,0,1,1];
-  cam.size = window.size.slice(); // The render size of this camera in pixels
-  // In ortho mode, this determines how many pixels it will see
-  cam.mode = "stretch";
-  cam.screen2world = camscreen2world;
-  cam.screen2cam = screen2cam;
-
-  cam.mousepos = function() { return this.screen2world(input.mouse.screenpos()); }
-  cam.view = camviewport;
-  cam.offscreen = false;
-  return cam;
-}
-
-var camera;
-var hudcam;
-var appcam;
-var screencolor;
-
-prosperon.render = function()
-{
-  profile.frame("world");
-  render.set_camera(camera);
-  profile.frame("sprites");
-  render.sprites();
-  profile.endframe();
-  profile.frame("draws");
-  prosperon.draw();
-  profile.endframe();
-  hudcam.size = camera.size;
-  hudcam.transform.pos = [hudcam.size.x/2, hudcam.size.y/2, -100];
-  render.set_camera(hudcam);
-
-  profile.endframe();
-  profile.frame("hud");
-
-  prosperon.hud();
-  render.flush_text();
-
-  render.end_pass();
-
-  profile.endframe();
-
-  profile.frame("post process");
-  /* draw the image of the game world first */
-  render.glue_pass();
-  render.viewport(...camera.view());
-  render.use_shader(render.postshader);
-  render.use_mat({diffuse:screencolor});
-  render.draw(shape.quad);
-
-  profile.endframe();
-
-  profile.frame("app");
-
-  // Flush & render
-  appcam.transform.pos = [window.size.x/2, window.size.y/2, -100];
-  appcam.size = window.size.slice();
-  if (os.sys() !== 'macos')
-    appcam.size.y *= -1;
-
-  render.set_camera(appcam);
-  render.viewport(...appcam.view());
-
-  // Call gui functions
-  mum.style = mum.dbg_style;
-  prosperon.gui();
-  if (mum.drawinput) mum.drawinput();
-  prosperon.gui_dbg();
-  render.flush_text();
-  mum.style = mum.base;
-
-  profile.endframe();
-
-  profile.frame("imgui");
-
-  render.imgui_new(window.size.x, window.size.y, 0.01);
-  prosperon.imgui();
-  render.imgui_end();
-
-  profile.endframe();
-
-  render.end_pass();
-  render.commit();
-}
-
-function process() {
-  profile.frame("frame");
-  var dt = profile.secs(profile.now()) - frame_t;
-  frame_t = profile.secs(profile.now());
-
-  profile.frame("app update");
-  prosperon.appupdate(dt);
-  profile.endframe();
-
-  profile.frame("input");
-  input.procdown();
-  profile.endframe();
-
-  if (sim.mode === "play" || sim.mode === "step") {
-    profile.frame("update");  
-    prosperon.update(dt * game.timescale);
-    profile.endframe();
-    if (sim.mode === "step") sim.pause();
-
-    profile.frame("physics");
-    physlag += dt;
-
-    while (physlag > physics.delta) {
-      physlag -= physics.delta;
-      prosperon.phys2d_step(physics.delta * game.timescale);
-      prosperon.physupdate(physics.delta * game.timescale);
-    }
-    profile.endframe();
-  }
-
-  profile.frame("render");
-  prosperon.window_render(window.size);
-  prosperon.render();
-  profile.endframe();
-
-  profile.endframe();
-}
-
-globalThis.fps = function () {
-  return 0;
-//  var sum = 0;
-//  for (var i = 0; i < frames.length; i++) sum += frames[i];
-//  return frames.length / sum;
-};
-
-game.timescale = 1;
-
-var eachobj = function (obj, fn) {
-  var val = fn(obj);
-  if (val) return val;
-  for (var o in obj.objects) {
-    if (obj.objects[o] === obj)
-      console.error(`Object ${obj.toString()} is referenced by itself.`);
-    val = eachobj(obj.objects[o], fn);
-    if (val) return val;
-  }
-};
-
-game.all_objects = function (fn, startobj = world) {
-  return eachobj(startobj, fn);
-};
-game.find_object = function (fn, startobj = world) {};
-
-game.tags = {};
-game.tag_add = function (tag, obj) {
-  game.tags[tag] ??= {};
-  game.tags[tag][obj.guid] = obj;
-};
-
-game.tag_rm = function (tag, obj) {
-  delete game.tags[tag][obj.guid];
-};
-
-game.tag_clear_guid = function (guid) {
-  for (var tag in game.tags) delete game.tags[tag][guid];
-};
-
-game.objects_with_tag = function (tag) {
-  if (!game.tags[tag]) return [];
-  return Object.values(game.tags[tag]);
-};
-
-game.doc = {};
-game.doc.object = "Returns the entity belonging to a given id.";
-game.doc.pause = "Pause game simulation.";
-game.doc.play = "Resume or start game simulation.";
-game.doc.camera = "Current camera.";
-
-game.texture = function (path, force = false) {
-  if (force && game.texture.cache[path]) return game.texture.cache[path];
-
-  if (!io.exists(path)) {
-    console.warn(`Missing texture: ${path}`);
-    game.texture.cache[path] = game.texture("icons/no_tex.gif");
-  } else game.texture.cache[path] ??= os.make_texture(path);
-
-  return game.texture.cache[path];
-};
-game.texture.cache = {};
-
-prosperon.semver = {};
-prosperon.semver.valid = function (v, range) {
-  v = v.split(".");
-  range = range.split(".");
-  if (v.length !== 3) return undefined;
-  if (range.length !== 3) return undefined;
-
-  if (range[0][0] === "^") {
-    range[0] = range[0].slice(1);
-    if (parseInt(v[0]) >= parseInt(range[0])) return true;
-
-    return false;
-  }
-
-  if (range[0] === "~") {
-    range[0] = range[0].slice(1);
-    for (var i = 0; i < 2; i++)
-      if (parseInt(v[i]) < parseInt(range[i])) return false;
-    return true;
-  }
-
-  return prosperon.semver.cmp(v.join("."), range.join(".")) === 0;
-};
-
-prosperon.semver.cmp = function (v1, v2) {
-  var ver1 = v1.split(".");
-  var ver2 = v2.split(".");
-
-  for (var i = 0; i < 3; i++) {
-    var n1 = parseInt(ver1[i]);
-    var n2 = parseInt(ver2[i]);
-    if (n1 > n2) return 1;
-    else if (n1 < n2) return -1;
-  }
-
-  return 0;
-};
-
-prosperon.semver.doc =
-  "Functions for semantic versioning numbers. Semantic versioning is given as a triple digit number, as MAJOR.MINOR.PATCH.";
-prosperon.semver.cmp.doc =
-  "Compare two semantic version numbers, given like X.X.X.";
-prosperon.semver.valid.doc = `Test if semantic version v is valid, given a range.
-Range is given by a semantic versioning number, prefixed with nothing, a ~, or a ^.
-~ means that MAJOR and MINOR must match exactly, but any PATCH greater or equal is valid.
-^ means that MAJOR must match exactly, but any MINOR and PATCH greater or equal is valid.`;
-
-prosperon.iconified = function (icon) {};
-prosperon.focus = function (focus) {};
-prosperon.resize = function (dimensions) {
-  window.size.x = dimensions.x;
-  window.size.y = dimensions.y;
-};
-prosperon.suspended = function (sus) {};
-prosperon.mouseenter = function () {};
-prosperon.mouseleave = function () {};
-prosperon.touchpress = function (touches) {};
-prosperon.touchrelease = function (touches) {};
-prosperon.touchmove = function (touches) {};
-prosperon.clipboardpaste = function (str) {};
-prosperon.quit = function () {
-  if (profile.disabled) return;
-  
-  say("===START CACHE REPORTS===\n");
-  for (var i in profile.report_cache) {
-    say(profile.printreport(profile.report_cache[i],i));
-  }
-
-  say("===FRAME AVERAGES===\n");
-  say(profile.print_frame_avg());
-  say("\n");
-
-  profile.print_cpu_instr();
-};
-
-window.size = [640, 480];
-window.mode = "keep";
-window.toggle_fullscreen = function() { window.fullscreen = !window.fullscreen; }
-
-window.set_icon.doc = "Set the icon of the window using the PNG image at path.";
-
-window.doc = {};
-window.doc.dimensions = "Window width and height packaged in an array [width,height]";
-window.doc.title = "Name in the title bar of the window.";
-window.doc.boundingbox = "Boundingbox of the window, with top and right being its height and width.";
-
-global.mixin("scripts/input");
-global.mixin("scripts/std");
-global.mixin("scripts/diff");
-global.mixin("scripts/color");
-global.mixin("scripts/gui");
-global.mixin("scripts/tween");
-global.mixin("scripts/ai");
-global.mixin("scripts/particle");
-
-var timer = {
-  update(dt) {
-    this.remain -= dt;
-    if (this.remain <= 0) {
-      this.fn();
-      this.kill();
-    }
-  },
-
-  kill() {
-    this.end();
-    delete this.fn;
-  },
-
-  delay(fn, secs) {
-    var t = Object.create(this);
-    t.time = secs;
-    t.remain = secs;
-    t.fn = fn;
-    t.end = Register.update.register(timer.update.bind(t));
-    var returnfn = timer.kill.bind(t);
-    returnfn.remain = secs;
-    return returnfn;
-  },
-};
-
-global.mixin("scripts/physics");
-global.mixin("scripts/geometry");
-
-/*
-Factory for creating registries. Register one with 'X.register',
-which returns a function that, when invoked, cancels the registry.
-*/
-var Register = {
-  registries: [],
-
-  add_cb(name, e_event = false) {
-    var n = {};
-    var fns = [];
-
-    n.register = function (fn, oname) {
-      if (!(fn instanceof Function)) return;
-
-      var dofn = function(...args) {
-        var st = profile.now();
-        fn(...args);
-	      profile.addreport(name, oname, st);
-      }
-      
-      fns.push(dofn);
-      return function () {
-        fns.remove(dofn);
-      };
-    };
-    
-    prosperon[name] = function (...args) {
-      fns.forEach(x => x(...args));
-    };
-    
-    prosperon[name].fns = fns;
-    n.clear = function () {
-      fns = [];
-    };
-
-    Register[name] = n;
-    Register.registries[name] = n;
-
-    return n;
-  },
-};
-
-Register.add_cb("appupdate", true);
-Register.add_cb("update", true).doc = "Called once per frame.";
-Register.add_cb("physupdate", true);
-Register.add_cb("gui", true);
-Register.add_cb("hud", true);
-Register.add_cb("draw_dbg", true);
-Register.add_cb("gui_dbg", true);
-Register.add_cb("hud_dbg", true);
-Register.add_cb("draw", true);
-Register.add_cb("imgui", true);
-
-var Event = {
-  events: {},
-
-  observe(name, obj, fn) {
-    this.events[name] ??= [];
-    this.events[name].push([obj, fn]);
-  },
-
-  unobserve(name, obj) {
-    this.events[name] = this.events[name].filter((x) => x[0] !== obj);
-  },
-
-  rm_obj(obj) {
-    Object.keys(this.events).forEach((name) => Event.unobserve(name, obj));
-  },
-
-  notify(name, ...args) {
-    if (!this.events[name]) return;
-    this.events[name].forEach(function (x) {
-      x[1].call(x[0], ...args);
-    });
-  },
-};
-
-global.mixin("scripts/spline");
-global.mixin("scripts/components");
-global.mixin("scripts/actor");
-global.mixin("scripts/entity");
-
-function world_start() {
-  globalThis.world = Object.create(entity);
-  world.transform = os.make_transform();
-  world.objects = {};
-  world.toString = function () {
-    return "world";
-  };
-  world.ur = "world";
-  world.kill = function () {
-    this.clear();
-  };
-  world.phys = 2;
-  world.zoom = 1;
-  world._ed = { selectable: false };
-  world.ur = {};
-  world.ur.fresh = {};
-  game.cam = world;
-}
-
-global.mixin("scripts/physics");
-global.mixin("scripts/widget");
-global.mixin("scripts/mum");
-
-window.title = `Prosperon v${prosperon.version}`;
-window.size = [500, 500];
+Object.assign(globalThis, use("scripts/prosperon.js"));
diff --git a/scripts/entity.js b/scripts/entity.js
index 5e7e689..199b9eb 100644
--- a/scripts/entity.js
+++ b/scripts/entity.js
@@ -138,7 +138,7 @@ var entity = {
   },
   
   spawn(text, config, callback) {
-    var st = profile.now();
+
     var ent = Object.create(entity);
     ent.transform = os.make_transform();
     
@@ -165,7 +165,8 @@ var entity = {
       use(text, ent);
     else if (Array.isArray(text))
       for (var path of text) use(path,ent);
-  
+    profile.cache("ENTITY TIME", ent.ur.name);
+    var st = profile.now();  
     if (typeof config === 'string')
       Object.merge(ent, json.decode(Resources.replstrs(config)));
     else if (Array.isArray(config))
@@ -230,7 +231,7 @@ var entity = {
     for (var i in ent.objects)
       ent.ur.fresh.objects[i] = ent.objects[i].instance_obj();
 
-    profile.addreport("ENTITY TIME", ent.ur.name, st);
+    profile.endcache();
     
     return ent;
   },
diff --git a/scripts/profile.js b/scripts/profile.js
index 67ff7bd..fa67687 100644
--- a/scripts/profile.js
+++ b/scripts/profile.js
@@ -1,3 +1,5 @@
+var t_units = ["ns", "us", "ms", "s", "m", "h"];
+
 profile.cpu = function(fn, times = 1, q = "unnamed") {
   var start = profile.now();
   for (var i = 0; i < times; i++)
@@ -33,6 +35,7 @@ function add_callgraph(fn, line, time) {
 var hittar = 500;
 var hitpct = 0.2;
 var start_gather = profile.now();
+if (profile.enabled)
 profile.gather(hittar, function() {
   var time = profile.now()-st;
   
@@ -141,19 +144,43 @@ profile.print_frame_avg = function()
     print_frame(profile_frames[i], "", 'frame');
 }
 
-profile.report_cache = {};
+var report_cache = {};
 
-profile.addreport = function (group, line, start) {
+var cachest = 0;
+var cachegroup;
+var cachetitle;
+profile.cache = function(group, title)
+{
+  cachest = profile.now();
+  cachegroup = group;
+  cachetitle = title;
+}
+
+profile.endcache = function(tag = "")
+{
+  addreport(cachegroup, cachetitle + tag, cachest);
+}
+
+profile.print_cache_report = function()
+{
+  var str = "===START CACHE REPORTS===\n";
+  for (var i in report_cache)
+    str += printreport(report_cache[i], i) + "\n";
+
+  return str;
+}
+
+function addreport(group, line, start) {
   if (typeof group !== 'string') group = 'UNGROUPED';
-  profile.report_cache[group] ??= {};
-  var cache = profile.report_cache[group];
+  report_cache[group] ??= {};
+  var cache = report_cache[group];
   cache[line] ??= [];
   var t = profile.now();
   cache[line].push(t - start);
   return t;
 };
 
-profile.printreport = function (cache, name) {
+function printreport(cache, name) {
   var report = `==${name}==` + "\n";
 
   var reports = [];
@@ -176,12 +203,3 @@ profile.printreport = function (cache, name) {
 
   return report;
 };
-
-var null_fn = function(){};
-profile.disable = function()
-{
-  profile.gather_stop();
-  profile.frame = null_fn;
-  profile.endframe = null_fn;
-  profile.disabled = true;
-}
\ No newline at end of file
diff --git a/scripts/prosperon.js b/scripts/prosperon.js
new file mode 100644
index 0000000..a618844
--- /dev/null
+++ b/scripts/prosperon.js
@@ -0,0 +1,425 @@
+global.check_registers = function (obj) {
+  for (var reg in Register.registries) {
+    if (typeof obj[reg] === 'function') {
+      var fn = obj[reg].bind(obj);
+      var name = obj.ur ? obj.ur.name : obj.toString();
+      obj.timers.push(Register.registries[reg].register(fn, name));
+    }
+  }
+      
+  for (var k in obj) {
+    if (!k.startsWith("on_")) continue;
+    var signal = k.fromfirst("on_");
+    Event.observe(signal, obj, obj[k]);
+  }
+};
+
+global.obscure("global");
+global.mixin("scripts/render");
+global.mixin("scripts/debug");
+
+var frame_t = profile.secs(profile.now());
+
+var sim = {};
+sim.mode = "play";
+sim.play = function () {
+  this.mode = "play";
+  os.reindex_static();
+};
+sim.playing = function () {
+  return this.mode === "play";
+};
+sim.pause = function () {
+  this.mode = "pause";
+};
+sim.paused = function () {
+  return this.mode === "pause";
+};
+sim.step = function () {
+  this.mode = "step";
+};
+sim.stepping = function () {
+  return this.mode === "step";
+};
+
+var physlag = 0;
+
+var gggstart = game.engine_start;
+game.engine_start = function (s) {
+  game.startengine = 1;
+  gggstart(
+    function () {
+      global.mixin("scripts/sound.js");
+      world_start();
+      window.set_icon(os.make_texture("icons/moon.gif"));
+      Object.readonly(window.__proto__, "vsync");
+      Object.readonly(window.__proto__, "enable_dragndrop");
+      Object.readonly(window.__proto__, "enable_clipboard");
+      Object.readonly(window.__proto__, "high_dpi");
+      Object.readonly(window.__proto__, "sample_count");
+      s();
+
+      shape.quad = {
+        pos: os.make_buffer([0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0], 0),
+        verts: 4,
+        uv: os.make_buffer([0, 1, 1, 1, 0, 0, 1, 0], 2),
+        index: os.make_buffer([0, 1, 2, 2, 1, 3], 1),
+        count: 6,
+      };
+
+      shape.triangle = {
+        pos: os.make_buffer([0, 0, 0, 0.5, 1, 0, 1, 0, 0], 0),
+        uv: os.make_buffer([0, 0, 0.5, 1, 1, 0], 2),
+        verts: 3,
+        count: 3,
+        index: os.make_buffer([0, 2, 1], 1),
+      };
+      
+      shape.centered_quad = {
+        pos: os.make_buffer([-0.5, -0.5, -0.5, 0.5, -0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, -0.5], 0),
+        verts: 4,
+        uv: os.make_buffer([0,1,1,1,0,0,1,0],2),
+        index: os.make_buffer([0,1,2,2,1,3],1),
+        count: 6
+      };
+
+      render.init();
+
+      prosperon.camera = prosperon.make_camera();
+      var camera = prosperon.camera;
+      camera.transform.pos = [0,0,-100];
+      camera.mode = "keep";
+      camera.break = "fit";
+      camera.size = game.size;
+      gamestate.camera = camera;
+
+      prosperon.hudcam = prosperon.make_camera();
+      var hudcam = prosperon.hudcam;
+      hudcam.near = 0;
+      hudcam.size = camera.size;
+      hudcam.mode = "keep";
+      hudcam.break = "fit";
+
+      prosperon.appcam = prosperon.make_camera();
+      var appcam = prosperon.appcam;
+      appcam.near = 0;
+      appcam.size = window.size;
+      appcam.transform.pos = [window.size.x,window.size.y,-100];
+      prosperon.screencolor = render.screencolor();
+    },
+    prosperon.process,
+    window.size.x,
+    window.size.y,
+  );
+};
+
+game.startengine = 0;
+var frames = [];
+
+prosperon.release_mode = function()
+{
+  prosperon.debug = false;
+  mum.debug = false;
+  debug.kill();
+}
+prosperon.debug = true;
+
+globalThis.fps = function () {
+  return 0;
+//  var sum = 0;
+//  for (var i = 0; i < frames.length; i++) sum += frames[i];
+//  return frames.length / sum;
+};
+
+game.timescale = 1;
+
+var eachobj = function (obj, fn) {
+  var val = fn(obj);
+  if (val) return val;
+  for (var o in obj.objects) {
+    if (obj.objects[o] === obj)
+      console.error(`Object ${obj.toString()} is referenced by itself.`);
+    val = eachobj(obj.objects[o], fn);
+    if (val) return val;
+  }
+};
+
+game.all_objects = function (fn, startobj = world) {
+  return eachobj(startobj, fn);
+};
+game.find_object = function (fn, startobj = world) {};
+
+game.tags = {};
+game.tag_add = function (tag, obj) {
+  game.tags[tag] ??= {};
+  game.tags[tag][obj.guid] = obj;
+};
+
+game.tag_rm = function (tag, obj) {
+  delete game.tags[tag][obj.guid];
+};
+
+game.tag_clear_guid = function (guid) {
+  for (var tag in game.tags) delete game.tags[tag][guid];
+};
+
+game.objects_with_tag = function (tag) {
+  if (!game.tags[tag]) return [];
+  return Object.values(game.tags[tag]);
+};
+
+game.doc = {};
+game.doc.object = "Returns the entity belonging to a given id.";
+game.doc.pause = "Pause game simulation.";
+game.doc.play = "Resume or start game simulation.";
+game.doc.camera = "Current camera.";
+
+game.texture = function (path, force = false) {
+  if (force && game.texture.cache[path]) return game.texture.cache[path];
+
+  if (!io.exists(path)) {
+    console.warn(`Missing texture: ${path}`);
+    game.texture.cache[path] = game.texture("icons/no_tex.gif");
+  } else game.texture.cache[path] ??= os.make_texture(path);
+
+  return game.texture.cache[path];
+};
+game.texture.cache = {};
+
+prosperon.semver = {};
+prosperon.semver.valid = function (v, range) {
+  v = v.split(".");
+  range = range.split(".");
+  if (v.length !== 3) return undefined;
+  if (range.length !== 3) return undefined;
+
+  if (range[0][0] === "^") {
+    range[0] = range[0].slice(1);
+    if (parseInt(v[0]) >= parseInt(range[0])) return true;
+
+    return false;
+  }
+
+  if (range[0] === "~") {
+    range[0] = range[0].slice(1);
+    for (var i = 0; i < 2; i++)
+      if (parseInt(v[i]) < parseInt(range[i])) return false;
+    return true;
+  }
+
+  return prosperon.semver.cmp(v.join("."), range.join(".")) === 0;
+};
+
+prosperon.semver.cmp = function (v1, v2) {
+  var ver1 = v1.split(".");
+  var ver2 = v2.split(".");
+
+  for (var i = 0; i < 3; i++) {
+    var n1 = parseInt(ver1[i]);
+    var n2 = parseInt(ver2[i]);
+    if (n1 > n2) return 1;
+    else if (n1 < n2) return -1;
+  }
+
+  return 0;
+};
+
+prosperon.semver.doc =
+  "Functions for semantic versioning numbers. Semantic versioning is given as a triple digit number, as MAJOR.MINOR.PATCH.";
+prosperon.semver.cmp.doc =
+  "Compare two semantic version numbers, given like X.X.X.";
+prosperon.semver.valid.doc = `Test if semantic version v is valid, given a range.
+Range is given by a semantic versioning number, prefixed with nothing, a ~, or a ^.
+~ means that MAJOR and MINOR must match exactly, but any PATCH greater or equal is valid.
+^ means that MAJOR must match exactly, but any MINOR and PATCH greater or equal is valid.`;
+
+prosperon.iconified = function (icon) {};
+prosperon.focus = function (focus) {};
+prosperon.resize = function (dimensions) {
+  window.size.x = dimensions.x;
+  window.size.y = dimensions.y;
+};
+prosperon.suspended = function (sus) {};
+prosperon.mouseenter = function () {};
+prosperon.mouseleave = function () {};
+prosperon.touchpress = function (touches) {};
+prosperon.touchrelease = function (touches) {};
+prosperon.touchmove = function (touches) {};
+prosperon.clipboardpaste = function (str) {};
+prosperon.quit = function () {
+  if (!profile.enabled) return;
+
+  say(profile.print_cache_report());
+
+  say("===FRAME AVERAGES===\n");
+  say(profile.print_frame_avg());
+  say("\n");
+
+  profile.print_cpu_instr();
+};
+
+window.size = [640, 480];
+window.mode = "keep";
+window.toggle_fullscreen = function() { window.fullscreen = !window.fullscreen; }
+
+window.set_icon.doc = "Set the icon of the window using the PNG image at path.";
+
+window.doc = {};
+window.doc.dimensions = "Window width and height packaged in an array [width,height]";
+window.doc.title = "Name in the title bar of the window.";
+window.doc.boundingbox = "Boundingbox of the window, with top and right being its height and width.";
+
+global.mixin("scripts/input");
+global.mixin("scripts/std");
+global.mixin("scripts/diff");
+global.mixin("scripts/color");
+global.mixin("scripts/gui");
+global.mixin("scripts/tween");
+global.mixin("scripts/ai");
+global.mixin("scripts/particle");
+
+var timer = {
+  update(dt) {
+    this.remain -= dt;
+    if (this.remain <= 0) {
+      this.fn();
+      this.kill();
+    }
+  },
+
+  kill() {
+    this.end();
+    delete this.fn;
+  },
+
+  delay(fn, secs) {
+    var t = Object.create(this);
+    t.time = secs;
+    t.remain = secs;
+    t.fn = fn;
+    t.end = Register.update.register(timer.update.bind(t));
+    var returnfn = timer.kill.bind(t);
+    returnfn.remain = secs;
+    return returnfn;
+  },
+};
+
+global.mixin("scripts/physics");
+global.mixin("scripts/geometry");
+
+/*
+Factory for creating registries. Register one with 'X.register',
+which returns a function that, when invoked, cancels the registry.
+*/
+var Register = {
+  registries: [],
+
+  add_cb(name, e_event = false) {
+    var n = {};
+    var fns = [];
+
+    n.register = function (fn, oname) {
+      if (!(fn instanceof Function)) return;
+
+      var dofn = function(...args) {
+        profile.cache(name,oname);
+        var st = profile.now();
+        fn(...args);
+	profile.endcache();
+      }
+      
+      fns.push(dofn);
+      return function () {
+        fns.remove(dofn);
+      };
+    };
+    
+    prosperon[name] = function (...args) {
+      fns.forEach(x => x(...args));
+    };
+    
+    prosperon[name].fns = fns;
+    n.clear = function () {
+      fns = [];
+    };
+
+    Register[name] = n;
+    Register.registries[name] = n;
+
+    return n;
+  },
+};
+
+Register.add_cb("appupdate", true);
+Register.add_cb("update", true).doc = "Called once per frame.";
+Register.add_cb("physupdate", true);
+Register.add_cb("gui", true);
+Register.add_cb("hud", true);
+Register.add_cb("draw_dbg", true);
+Register.add_cb("gui_dbg", true);
+Register.add_cb("hud_dbg", true);
+Register.add_cb("draw", true);
+Register.add_cb("imgui", true);
+
+var Event = {
+  events: {},
+
+  observe(name, obj, fn) {
+    this.events[name] ??= [];
+    this.events[name].push([obj, fn]);
+  },
+
+  unobserve(name, obj) {
+    this.events[name] = this.events[name].filter((x) => x[0] !== obj);
+  },
+
+  rm_obj(obj) {
+    Object.keys(this.events).forEach((name) => Event.unobserve(name, obj));
+  },
+
+  notify(name, ...args) {
+    if (!this.events[name]) return;
+    this.events[name].forEach(function (x) {
+      x[1].call(x[0], ...args);
+    });
+  },
+};
+
+global.mixin("scripts/spline");
+global.mixin("scripts/components");
+global.mixin("scripts/actor");
+global.mixin("scripts/entity");
+
+function world_start() {
+  globalThis.world = Object.create(entity);
+  world.transform = os.make_transform();
+  world.objects = {};
+  world.toString = function () {
+    return "world";
+  };
+  world.ur = "world";
+  world.kill = function () {
+    this.clear();
+  };
+  world.phys = 2;
+  world.zoom = 1;
+  world._ed = { selectable: false };
+  world.ur = {};
+  world.ur.fresh = {};
+  game.cam = world;
+}
+
+global.mixin("scripts/physics");
+global.mixin("scripts/widget");
+global.mixin("scripts/mum");
+
+window.title = `Prosperon v${prosperon.version}`;
+window.size = [500, 500];
+
+return {
+  Register,
+  sim,
+  frame_t,
+  physlag,
+  Event
+}
diff --git a/scripts/render.js b/scripts/render.js
index 2f700ac..7df1e94 100644
--- a/scripts/render.js
+++ b/scripts/render.js
@@ -182,7 +182,8 @@ render.make_shader = function(shader)
     shader = io.slurp(`shaders/${file}`);
   }
   var writejson = `.prosperon/${file.name()}.shader.json`;
-  var st = profile.now();
+
+  profile.cache("shader", file);
   
   breakme: if (io.exists(writejson)) {
     var data = json.decode(io.slurp(writejson));
@@ -193,8 +194,8 @@ render.make_shader = function(shader)
         break breakme;
       }
     }
-  
-    profile.addreport("shader [cached]", file, st);
+
+    profile.endcache(" [cached]");
     var shaderobj = json.decode(io.slurp(writejson));
     var obj = shaderobj[os.sys()];
     obj.pipe = render.pipeline(obj);
@@ -310,7 +311,7 @@ render.make_shader = function(shader)
   compiled.files = files;
   
   io.slurpwrite(writejson, json.encode(compiled));
-  profile.addreport('shader', file, st);
+  profile.endcache();
   
   var obj = compiled[os.sys()];
   obj.pipe = render.pipeline(obj);
@@ -791,4 +792,199 @@ render.draw = function(mesh, ssbo, inst = 1)
   render.spdraw(cur.bind.count, inst);
 }
 
+
+
+
+// Returns an array in the form of [left, bottom, right, top] in pixels of the camera to render to
+// Camera viewport is [left,bottom,right,top] in relative values
+function camviewport()
+{
+  var aspect = (this.viewport[2]-this.viewport[0])/(this.viewport[3]-this.viewport[1])*window.size.x/window.size.y;
+  var raspect = this.size.x/this.size.y;
+
+  var left = this.viewport[0]*window.size.x;
+  var bottom = this.viewport[1]*window.size.y;
+
+  var usemode = this.mode;
+
+  if (this.break && this.size.x > window.size.x && this.size.y > window.size.y)
+    usemode = this.break;
+
+  if (usemode === "fit")
+    if (raspect < aspect) usemode = "height";
+    else usemode = "width";
+
+  switch(usemode) {
+    case "stretch":
+    case "expand":
+      return [0, 0, window.size.x, window.size.y];
+    case "keep":
+      return [left, bottom, left+this.size.x, bottom+this.size.y];
+    case "height":
+      var ret = [left, 0, this.size.x*(window.size.y/this.size.y), window.size.y];
+      ret[0] = (window.size.x-(ret[2]-ret[0]))/2;
+      return ret;
+    case "width":
+      var ret = [0, bottom, window.size.x, this.size.y*(window.size.x/this.size.x)];
+      ret[1] = (window.size.y-(ret[3]-ret[1]))/2;
+      return ret;
+  }
+
+  return [0, 0, window.size.x, window.size.y];
+}
+
+// pos is pixels on the screen, lower left[0,0]
+function camscreen2world(pos)
+{
+  var view = this.screen2cam(pos);
+  view.x *= this.size.x;
+  view.y *= this.size.y;
+  view = view.sub([this.size.x/2, this.size.y/2]);
+  view = view.add(this.pos.xy);
+  return view;
+}
+
+camscreen2world.doc = "Convert a view position for a camera to world."
+
+function screen2cam(pos)
+{
+  var viewport = this.view();
+  var width = viewport[2]-viewport[0];
+  var height = viewport[3]-viewport[1];
+  var left = pos.x-viewport[0];
+  var bottom = pos.y-viewport[1];
+  var p = [left/width, bottom/height];
+  return p;
+}
+
+screen2cam.doc = "Convert a screen space position in pixels to a normalized viewport position in a camera."
+
+prosperon.make_camera = function()
+{
+  var cam = world.spawn();
+  cam.near = 0.1;
+  cam.far = 1000;
+  cam.ortho = true;
+  cam.viewport = [0,0,1,1];
+  cam.size = window.size.slice(); // The render size of this camera in pixels
+  // In ortho mode, this determines how many pixels it will see
+  cam.mode = "stretch";
+  cam.screen2world = camscreen2world;
+  cam.screen2cam = screen2cam;
+
+  cam.mousepos = function() { return this.screen2world(input.mouse.screenpos()); }
+  cam.view = camviewport;
+  cam.offscreen = false;
+  return cam;
+}
+
+var screencolor;
+
+prosperon.render = function()
+{
+  profile.frame("world");
+  render.set_camera(prosperon.camera);
+  profile.frame("sprites");
+  render.sprites();
+  profile.endframe();
+  profile.frame("draws");
+  prosperon.draw();
+  profile.endframe();
+  prosperon.hudcam.size = prosperon.camera.size;
+  prosperon.hudcam.transform.pos = [prosperon.hudcam.size.x/2, prosperon.hudcam.size.y/2, -100];
+  render.set_camera(prosperon.hudcam);
+
+  profile.endframe();
+  profile.frame("hud");
+
+  prosperon.hud();
+  render.flush_text();
+
+  render.end_pass();
+
+  profile.endframe();
+
+  profile.frame("post process");
+  /* draw the image of the game world first */
+  render.glue_pass();
+  render.viewport(...prosperon.camera.view());
+  render.use_shader(render.postshader);
+  render.use_mat({diffuse:prosperon.screencolor});
+  render.draw(shape.quad);
+
+  profile.endframe();
+
+  profile.frame("app");
+
+  // Flush & render
+  prosperon.appcam.transform.pos = [window.size.x/2, window.size.y/2, -100];
+  prosperon.appcam.size = window.size.slice();
+  if (os.sys() !== 'macos')
+    prosperon.appcam.size.y *= -1;
+
+  render.set_camera(prosperon.appcam);
+  render.viewport(...prosperon.appcam.view());
+
+  // Call gui functions
+  mum.style = mum.dbg_style;
+  prosperon.gui();
+  if (mum.drawinput) mum.drawinput();
+  prosperon.gui_dbg();
+  render.flush_text();
+  mum.style = mum.base;
+
+  profile.endframe();
+
+  profile.frame("imgui");
+
+  render.imgui_new(window.size.x, window.size.y, 0.01);
+  prosperon.imgui();
+  render.imgui_end();
+
+  profile.endframe();
+
+  render.end_pass();
+  render.commit();
+}
+
+prosperon.process = function() {
+  profile.frame("frame");
+  var dt = profile.secs(profile.now()) - frame_t;
+  frame_t = profile.secs(profile.now());
+
+  profile.frame("app update");
+  prosperon.appupdate(dt);
+  profile.endframe();
+
+  profile.frame("input");
+  input.procdown();
+  profile.endframe();
+
+  if (sim.mode === "play" || sim.mode === "step") {
+    profile.frame("update");  
+    prosperon.update(dt * game.timescale);
+    profile.endframe();
+    if (sim.mode === "step") sim.pause();
+
+    profile.frame("physics");
+    physlag += dt;
+
+    while (physlag > physics.delta) {
+      physlag -= physics.delta;
+      prosperon.phys2d_step(physics.delta * game.timescale);
+      prosperon.physupdate(physics.delta * game.timescale);
+    }
+    profile.endframe();
+  }
+
+  profile.frame("render");
+  prosperon.window_render(window.size);
+  prosperon.render();
+  profile.endframe();
+
+  profile.endframe();
+}
+
+
+
 return {render};