scripts/camera2d.jso

@@ -8,4 +8,16 @@ this.right = function() { return this.pos.x + (window.rendersize.x/2); }
 
 this.left = function() { return this.pos.x - (window.rendersize.x/2); }
 
-this.zoom = 1;
+this.mixin({
+  get zoom() {
+//    var z = game.native.y / window.dimensions.y;
+    return render.get_zoom(); // /z
+  },
+
+  set zoom(x) {
+    x = Math.clamp(x,0.1,10);
+//    var z = game.native.y / window.dimensions.y;
+//    z *= x;
+    render.add_zoom(x);
+  },
+});

scripts/components.js

@@ -22,7 +22,7 @@ var component = {
   make(go) {
     var nc = Object.create(this);
     nc.gameobject = go;
-    Object.mixin(nc, this._enghook(go));
+    Object.mixin(nc, this._enghook(go.body));
     assign_impl(nc,this.impl);
     Object.hide(nc, 'gameobject', 'id');
     nc.post();
@@ -152,7 +152,7 @@ Object.mixin(os.sprite(true), {
 os.sprite(true).make = function(go)
 {
   var sp = os.sprite();
-  sp.go = go;
+  sp.go = go.body;
   sp.gameobject = go;
   return sp;
 }
@@ -477,7 +477,7 @@ component.edge2d = Object.copy(collider2d, {
     }
 
     if (this.hollow) {
-      var hpoints = vector.inflate(spoints, this.hollowt);
+      var hpoints = inflate_cpv(spoints, spoints.length, this.hollowt);
       if (hpoints.length === spoints.length) return spoints;
       var arr1 = hpoints.filter(function(x,i) { return i % 2 === 0; });
       var arr2 = hpoints.filter(function(x,i) { return i % 2 !== 0; });

scripts/debug.js

@@ -14,7 +14,7 @@ debug.draw_bb = false;
 debug.draw_gizmos = false;
 debug.draw_names = false;
 debug.draw = function() {
-  if (this.draw_phys) game.all_objects(function(x) { debug.draw_gameobject(x); });
+  if (this.draw_phys) game.all_objects(function(x) { debug.draw_gameobject(x.body); });
   
   if (this.draw_bb)
     game.all_objects(function(x) { debug.boundingbox(x.boundingbox(), Color.debug.boundingbox.alpha(0.05)); });

scripts/editor.js

@@ -31,6 +31,8 @@ var editor = {
 
   get_this() { return this.edit_level; },
 
+  get_that() { return this.selectlist.length === 1 ? this.selectlist[0] : this.get_this(); },
+
   try_select() { /* nullify true if it should set selected to null if it doesn't find an object */
     var go = physics.pos_query(Mouse.worldpos());
     return this.do_select(go);
@@ -235,7 +237,11 @@ var editor = {
     this.selectlist = [];
     editor.camera = world.spawn("scripts/camera2d.jso");
     editor.camera._ed.selectable = false;
-    game.camera = editor.camera;
+    game.view_camera(editor.camera);
+  },
+
+  end_debug() {
+    
   },
    
   openpanel(panel) {

scripts/engine.js

@@ -58,6 +58,8 @@ console.doc = {
   clear: "Clear console."
 };
 
+console.stdout_lvl = 1;
+
 globalThis.global = globalThis;
 
 function use(file)
@@ -68,7 +70,7 @@ function use(file)
   var c = io.slurp(file);
   
   var script = `(function() { ${c} })();`;
-  use.files[file] = os.eval_env(file,script,global);
+  use.files[file] = os.eval_env(file,global,script);
 
   return use.files[file];
 }
@@ -88,7 +90,7 @@ function eval_env(script, env, file)
   file ??= "SCRIPT";
   console.spam(`eval ${file}`);  
   script = `(function() { ${script}; }).call(this);\n`;
-  return os.eval_env(file,script,env);
+  return os.eval_env(file,env,script);
 }
 
 global.check_registers = function(obj)
@@ -100,10 +102,10 @@ global.check_registers = function(obj)
       obj.timers.push(Register.physupdate.register(obj.physupdate.bind(obj)));
 
     if (typeof obj.collide === 'function')
-      physics.collide_begin(obj.collide.bind(obj), obj);
+      physics.collide_begin(obj.collide.bind(obj), obj.body);
 
     if (typeof obj.separate === 'function')
-      physics.collide_separate(obj.separate.bind(obj), obj);
+      physics.collide_separate(obj.separate.bind(obj), obj.body);
 
     if (typeof obj.draw === 'function')
       obj.timers.push(Register.draw.register(obj.draw.bind(obj), obj));
@@ -145,7 +147,8 @@ global.mixin("scripts/render.js");
 global.mixin("scripts/debug.js");
 
 var frame_t = profile.secs(profile.now());
-var phys_step = 1/60;
+var updateMS = 1/60;
+var physMS = 1/60;
 
 var sim = {
   mode: "play",
@@ -182,16 +185,13 @@ function process()
   
   physlag += dt;
   
-  while (physlag > phys_step) {
+  while (physlag > physMS) {
-    physlag -= phys_step;
+    physlag -= physMS;
-    prosperon.phys2d_step(phys_step*timescale);
+    prosperon.phys2d_step(physMS*timescale);
-    prosperon.physupdate(phys_step*timescale);
+    prosperon.physupdate(physMS*timescale);
   }
 
-  if (!game.camera)  
+  prosperon.window_render();
-    prosperon.window_render(world, 1);
-  else
-    prosperon.window_render(game.camera, game.camera.zoom);
   render.sprites();
   render.models();
   render.emitters();
@@ -224,6 +224,7 @@ game.doc.stop = "Stop game simulation. This does the same thing as 'pause', and
 game.doc.play = "Resume or start game simulation.";
 game.doc.editor_mode = "Set to true for the game to only update on input; otherwise the game updates every frame.";
 game.doc.dt = "Current frame dt.";
+game.doc.view_camera = "Set the camera for the current view.";
 game.doc.camera = "Current camera.";
 
 prosperon.semver = {};
@@ -428,18 +429,37 @@ global.mixin("scripts/actor.js");
 global.mixin("scripts/entity.js");
 
 function world_start() {
-  globalThis.world = os.make_gameobject();
+  gameobject.body = os.make_gameobject();
-  world.setref(world);
+  gameobject.body.setref(gameobject);
+
+  console.info("START WORLD");
+  globalThis.world = Object.create(gameobject);
+  gameobject.level = world;  
   world.objects = {};
+  world.check_dirty = function() {};
+  world.namestr = function(){};
+  world._ed = {
+    selectable:false,
+    dirty:false,
+  };
   world.toString = function() { return "world"; };
+  world.master = gameobject;
   world.ur = "world";
   world.kill = function() { this.clear(); };
   world.phys = 2;
-  world.zoom = 1;
+  
-  game.cam = world;
+  Object.hide(gameobject, 'timescale');
+  var cam = world.spawn("scripts/camera2d.jso");
+  game.view_camera(cam);
 }
 
 global.mixin("scripts/physics.js");
 
+game.view_camera = function(cam)
+{
+  game.camera = cam;
+  render.cam_body(game.camera.body);
+}
+
 window.title = `Prosperon v${prosperon.version}`;
 window.size = [500,500];

scripts/entity.js

@@ -13,12 +13,12 @@ function obj_unique_name(name, obj) {
 var gameobject_impl = {
   get pos() {
     assert(this.master, `Entity ${this.toString()} has no master.`);
-    return this.master.world2this(this.worldpos());
+    return this.master.body.world2this(this.worldpos());
   },
 
   set pos(x) {
     assert(this.master, `Entity ${this.toString()} has no master.`);
-    this.set_worldpos(this.master.this2world(x));
+    this.set_worldpos(this.master.body.this2world(x));
   },
 
   get angle() {
@@ -56,6 +56,47 @@ var gameobject_impl = {
       obj.pos = obj.pos.map((x, i) => x * pct[i]);
     });
   },
+
+  get draw_layer() { return this.body.drawlayer; },
+  set draw_layer(x) { this.body.drawlayer = x; },
+  set layer(x) { this.body.layer = x; },
+  get layer() { return this.body.layer; },
+  set warp_layer(x) { this.body.warp_filter = x; },
+  get warp_layer() { return this.body.warp_filter; },
+
+  set mass(x) { this.body.mass = x; },
+  get mass() {
+    if (!(this.phys === physics.dynamic))
+      return undefined;
+
+    return this.body.mass;
+  },
+  get elasticity() { return this.body.e; },
+  set elasticity(x) { this.body.e = x; },
+  get friction() { return this.body.f; },
+  set friction(x) { this.body.f = x; },
+  set timescale(x) { this.body.timescale = x; },
+  get timescale() { return this.body.timescale; },
+  set phys(x) { this.body.phys = x; },
+  get phys() { return this.body.phys; },
+  get velocity() { return this.body.velocity; },
+  set velocity(x) { this.body.velocity = x; },
+  get damping() { return this.body.damping; },
+  set damping(x) { this.body.damping = x },
+  get angularvelocity() { return Math.rad2turn(this.body.angularvelocity); },
+  set angularvelocity(x) { this.body.angularvelocity =  Math.turn2rad(x); },
+  get max_velocity() { return this.body.maxvelocity; },
+  set max_velocity(x) { this.body.maxvelocity = x; },
+  get max_angularvelocity() { return this.body.maxangularvelocity; },
+  set max_angularvelocity(x) { this.body.maxangularvelocity = x; },
+  get_moi() { return this.body.moi; },
+  set_moi(x) {
+    if (x <= 0) {
+      console.error("Cannot set moment of inertia to 0 or less.");
+      return;
+    }
+    this.body.moi = x;
+  },
 };
 
 var gameobject = {
@@ -67,7 +108,6 @@ var gameobject = {
     if (comps.length) return comps;
     return undefined;
   },
-  
   check_dirty() {
     this._ed.urdiff = this.json_obj();
     this._ed.dirty = !Object.empty(this._ed.urdiff);
@@ -81,7 +121,6 @@ var gameobject = {
     else
       this._ed.inst = false;
   },
-  
   _ed: {
     selectable: false,
     dirty: false
@@ -105,32 +144,32 @@ var gameobject = {
   },
   /* pin this object to the to object */
   pin(to) {
-    var p = joint.pin(this,to);
+    var p = joint.pin(this.body,to.body);
   },
   slide(to, a, b, min, max) {
     a ??= [0, 0];
     b ??= [0, 0];
     min ??= 0;
     max ??= 50;
-    var p = joint.slide(this, to, a, b, min, max);
+    var p = joint.slide(this.body, to.body, a, b, min, max);
     p.max_force = 500;
     p.break();
   },
   pivot(to, piv) {
     piv ??= this.worldpos();
-    var p = joint.pivot(this, to, piv);
+    var p = joint.pivot(this.body, to.body, piv);
   },
   /* groove is on to, from local points a and b, anchored to this at local anchor */
   groove(to, a, b, anchor) {
     anchor ??= [0, 0];
-    var p = joint.groove(to, this, a, b, anchor);
+    var p = joint.groove(to.body, this.body, a, b, anchor);
   },
   damped_spring(to, length, stiffness, damping) {
     length ??= Vector.length(this.worldpos(), to.worldpos());
     stiffness ??= 1;
     damping ??= 1;
     var dc = 2 * Math.sqrt(stiffness * this.mass);
-    var p = joint.damped_spring(this, to, [0, 0], [0, 0], stiffness, damping * dc);
+    var p = joint.damped_spring(this.body, to.body, [0, 0], [0, 0], stiffness, damping * dc);
   },
   damped_rotary_spring(to, angle, stiffness, damping) {
     angle ??= 0;
@@ -140,23 +179,23 @@ var gameobject = {
     /* damping = 1 is critical */
     var dc = 2 * Math.sqrt(stiffness * this.get_moi()); /* critical damping number */
     /* zeta = actual/critical */
-    var p = joint.damped_rotary(this, to, angle, stiffness, damping * dc);
+    var p = joint.damped_rotary(this.body, to.body, angle, stiffness, damping * dc);
   },
   rotary_limit(to, min, max) {
-    var p = joint.rotary(this, to, Math.turn2rad(min), Math.turn2rad(max));
+    var p = joint.rotary(this.body, to.body, Math.turn2rad(min), Math.turn2rad(max));
   },
   ratchet(to, ratch) {
     var phase = this.angle - to.angle;
-    var p = joint.ratchet(this, to, phase, Math.turn2rad(ratch));
+    var p = joint.ratchet(this.body, to.body, phase, Math.turn2rad(ratch));
   },
   gear(to, ratio) {
     phase ??= 1;
     ratio ??= 1;
     var phase = this.angle - to.angle;
-    var p = joint.gear(this, to, phase, ratio);
+    var p = joint.gear(this.body, to.body, phase, ratio);
   },
   motor(to, rate) {
-    var p = joint.motor(this, to, rate);
+    var p = joint.motor(this.body, to.body, rate);
   },
 
   path_from(o) {
@@ -215,12 +254,15 @@ var gameobject = {
     return killfn;
   },
 
-  gscale() { return this.scale; },
+  set torque(x) { if (!(x >= 0 && x <= Infinity)) return;
+    this.body.torque = x; },
+    
+  gscale() { return this.body.scale; },
   sgscale(x) {
     if (typeof x === 'number')
       x = [x, x];
     
-    physics.sgscale(this, x)
+    physics.sgscale(this.body, x)
   },
 
   phys_material() {
@@ -230,18 +272,21 @@ var gameobject = {
     return mat;
   },
 
-  worldpos() { return this.pos; },
+  worldpos() { return this.body.pos; },
   set_worldpos(x) {
     var poses = this.objects.map(x => x.pos);
-    this.pos = x;
+    this.body.pos = x;
     this.objects.forEach((o, i) => o.set_worldpos(this.this2world(poses[i])));
   },
   screenpos() { return window.world2screen(this.worldpos()); },
 
-  worldangle() { return Math.rad2turn(this.angle); },
+  worldangle() { return Math.rad2turn(this.body.angle); },
-  sworldangle(x) { this.angle = Math.turn2rad(x); },
+  sworldangle(x) { this.body.angle = Math.turn2rad(x); },
 
-  get_ur() { return Object.access(ur, this.ur); },
+  get_ur() {
+    //     if (this.ur === 'empty') return undefined;
+    return Object.access(ur, this.ur);
+  },
 
   /* spawn an entity
          text can be:
@@ -250,7 +295,7 @@ var gameobject = {
 	       nothing
       */
   spawn(text) {
-    var ent = os.make_gameobject();
+    var ent = Object.create(gameobject);
 
     if (typeof text === 'object')
       text = text.name;
@@ -273,7 +318,10 @@ var gameobject = {
     
     console.info(`Creating entity of type ${ent.ur}`);
 
+    Object.mixin(ent, gameobject_impl);
+    ent.body = os.make_gameobject();
     ent.warp_layer = [true];
+    ent.phys = 2;
     ent.components = {};
     ent.objects = {};
     ent.timers = [];
@@ -287,9 +335,9 @@ var gameobject = {
       urdiff: {},
     };
 
-    ent.setref(ent);
+    ent.body.setref(ent); // set the internal obj reference to this obj
 
-    Object.hide(ent, 'ur', 'components', 'objects', '_ed', 'timers', 'master');
+    Object.hide(ent, 'ur', 'body', 'components', 'objects', '_ed', 'timers', 'master');
     if (ent.ur === 'empty') {
       if (!ur.empty.proto) ur.empty.proto = json.decode(json.encode(ent));
       return ent;
@@ -313,9 +361,10 @@ var gameobject = {
     check_registers(ent);
     ent.components.forEach(function(x) {
       if (typeof x.collide === 'function')
-        physics.collide_shape(x.collide.bind(x), ent, x.shape);
+        physics.collide_shape(x.collide.bind(x), ent.body, x.shape);
     });
 
+
     if (typeof ent.load === 'function') ent.load();
     if (sim.playing())
       if (typeof ent.start === 'function') ent.start();
@@ -338,6 +387,8 @@ var gameobject = {
       }
     }
     
+    this.body.phys = this.body.phys; // simple way to sync
+
     return ent;
   },
 
@@ -385,14 +436,17 @@ var gameobject = {
   objects: {},
   master: undefined,
 
+  pulse(vec) { this.body.impulse(vec); },
+  shove(vec) { this.body.force(vec); },
+  shove_at(vec, at) { this.body.force_local(vec,at); },
   this2screen(pos) { return window.world2screen(this.this2world(pos)); },
   screen2this(pos) { return this.world2this(window.screen2world(pos)); },
   
-  in_air() { return this.in_air(); },
+  alive() { return this.body >= 0; },
+  in_air() { return this.body.in_air(); },
 
   hide() { this.components.forEach(x => x.hide?.());
     this.objects.forEach(x => x.hide?.()); },
-    
   show() { this.components.forEach(function(x) { x.show?.(); });
     this.objects.forEach(function(x) { x.show?.(); }); },
 
@@ -430,10 +484,20 @@ var gameobject = {
   flipx() { return this.scale.x < 0; },
   flipy() { return this.scale.y < 0; },
 
-  mirror(plane) { this.scale = Vector.reflect(this.scale, plane); },
+  mirror(plane) {
+    this.scale = Vector.reflect(this.scale, plane);
+  },
+
+  save: true,
+  selectable: true,
+  ed_locked: false,
 
   disable() { this.components.forEach(function(x) { x.disable(); }); },
   enable() { this.components.forEach(function(x) { x.enable(); }); },
+  sync() {
+    this.components.forEach(function(x) { x.sync?.(); });
+    this.objects.forEach(function(x) { x.sync?.(); });
+  },
 
   /* Bounding box of the object in world dimensions */
   boundingbox() {
@@ -539,7 +603,7 @@ var gameobject = {
     this.timers = [];
     Event.rm_obj(this);
     Player.do_uncontrol(this);
-    physics.collide_rm(this);
+    physics.collide_rm(this.body);
 
     if (this.master) {
       this.master.remove_obj(this);
@@ -615,16 +679,7 @@ var gameobject = {
       this.objects[o].obj_descend(fn);
   },
 }
-
+Object.mixin(gameobject, gameobject_impl);
-var gop = os.make_gameobject().__proto__;
-Object.mixin(gop, gameobject);
-var gsync = gop.sync;
-gop.sync = function() {
-  gsync.call(this);
-  this.components.forEach(function(x) { x.sync?.(); });
-  this.objects.forEach(function(x) { x.sync(); });
-}
-
 
 gameobject.spawn.doc = `Spawn an entity of type 'ur' on this entity. Returns the spawned entity.`;
 
@@ -780,3 +835,7 @@ game.loadurs = function() {
     name: "empty"
   };
 };
+
+return {
+  gameobject
+}

scripts/physics.js

@@ -1,7 +1,7 @@
 /* On collisions, entities are sent a 'hit' object, which looks like this: 
 var HIT = {
   normal: "The normal of the collision point.",
-  obj: "The gameobject of the object that collided.",
+  hit: "The gameobject of the object that collided.",
   sensor: "Boolean for if the colliding object was a sensor.",
   velocity: "Velocity of the contact.",
   pos: "Position in world space of the contact.",

source/engine/2dphysics.c

@@ -287,8 +287,9 @@ float phys2d_circle_moi(struct phys2d_circle *c) {
   return cpMomentForCircle(m, 0, cpCircleShapeGetRadius(c->shape.shape), cpCircleShapeGetOffset(c->shape.shape));
 }
 
-void phys2d_circledel(struct phys2d_circle *c) { phys2d_shape_del(&c->shape); }
+void phys2d_circledel(struct phys2d_circle *c) {
-void circle2d_free(circle2d *c) { phys2d_circledel(c); }
+  phys2d_shape_del(&c->shape);
+}
 
 void phys2d_dbgdrawcpcirc(cpShape *c) {
   HMM_Vec2 pos = mat_t_pos(t_go2world(shape2go(c)), (HMM_Vec2)cpCircleShapeGetOffset(c));
@@ -309,7 +310,6 @@ void phys2d_shape_apply(struct phys2d_shape *s)
   float newmoi = s->moi(s->data);
   moment-=moi;
   moment += newmoi;
-  if (moment < 0) moment = 0;
   cpBodySetMoment(s->go->body, moment);
 }
 

source/engine/2dphysics.h

@@ -47,8 +47,6 @@ struct phys2d_circle {
   struct phys2d_shape shape;
 };
 
-typedef struct phys2d_circle circle2d;
-
 /* A convex polygon; defined as the convex hull around the given set of points */
 struct phys2d_poly {
   HMM_Vec2 *points;
@@ -68,7 +66,6 @@ struct phys2d_edge {
 
 struct phys2d_circle *Make2DCircle(gameobject *go);
 void phys2d_circledel(struct phys2d_circle *c);
-void circle2d_free(circle2d *c);
 void phys2d_applycircle(struct phys2d_circle *circle);
 void phys2d_dbgdrawcircle(struct phys2d_circle *circle);
 float phys2d_circle_moi(struct phys2d_circle *c);

source/engine/debug/debugdraw.c

@@ -546,8 +546,8 @@ void draw_box(HMM_Vec2 c, HMM_Vec2 wh, struct rgba color)
 
 void draw_grid(float width, float span, struct rgba color)
 {
-  HMM_Vec2 offset = campos;
+  HMM_Vec2 offset = (HMM_Vec2)cam_pos();
-  offset = HMM_MulV2F(offset, 1/camzoom);
+  offset = HMM_MulV2F(offset, 1/cam_zoom());
 
   float ubo[4];
   ubo[0] = offset.x;
@@ -562,7 +562,7 @@ void draw_grid(float width, float span, struct rgba color)
 
   fs_params_t pt;
   pt.thickness = (float)width;
-  pt.span = span/camzoom;
+  pt.span = span/cam_zoom();
   memcpy(&pt.color, col, sizeof(float)*4);
   sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(ubo));
   sg_apply_uniforms(SG_SHADERSTAGE_FS, 0, SG_RANGE_REF(pt));

source/engine/gameobject.c

@@ -75,8 +75,8 @@ transform2d go2t(gameobject *go)
 unsigned int editor_cat = 1<<31;
 
 void go_shape_apply(cpBody *body, cpShape *shape, gameobject *go) {
-  cpShapeSetFriction(shape, go->friction);
+  cpShapeSetFriction(shape, go->f);
-  cpShapeSetElasticity(shape, go->elasticity);
+  cpShapeSetElasticity(shape, go->e);
   cpShapeSetCollisionType(shape, (cpCollisionType)go);
 
   cpShapeFilter filter;
@@ -105,7 +105,6 @@ void go_shape_moi(cpBody *body, cpShape *shape, gameobject *go) {
 }
 
 void gameobject_apply(gameobject *go) {
-  YughInfo("Applying gameobject %p", go);
   cpBodySetType(go->body, go->phys);
   cpBodyEachShape(go->body, go_shape_apply, go);
 
@@ -116,6 +115,8 @@ void gameobject_apply(gameobject *go) {
 
     if (cpBodyGetMoment(go->body) <= 0.f)
       cpBodySetMoment(go->body, 1.f);
+
+    return;
   }
 }
 

source/engine/gameobject.h

@@ -32,8 +32,8 @@ struct gameobject {
   HMM_Vec3 scale; /* local */  
   int next;
   float mass;
-  float friction;
+  float f;   /* friction */
-  float elasticity;
+  float e;   /* elasticity */
   float damping;
   float timescale;
   float maxvelocity;

source/engine/jsffi.h

@@ -6,6 +6,7 @@
 #include "dsp.h"
 
 void ffi_load();
+void ffi_stop();
 
 JSValue vec22js(HMM_Vec2 v);
 HMM_Vec2 js2vec2(JSValue v);

source/engine/render.c

@@ -26,9 +26,6 @@
 
 #include "msf_gif.h"
 
-HMM_Vec2 campos = {0,0};
-float camzoom = 1;
-
 static struct {
   sg_swapchain swap;
   sg_pipeline pipe;
@@ -359,10 +356,18 @@ void render_init() {
 
 }
 
+static cpBody *camera = NULL;
+void set_cam_body(cpBody *body) { camera = body; }
+cpVect cam_pos() { return camera ? cpBodyGetPosition(camera) : cpvzero; }
+
+static float zoom = 1.f;
+float cam_zoom() { return zoom; }
+void add_zoom(float val) { zoom = val; }
+
 HMM_Vec2 world2screen(HMM_Vec2 pos)
 {
-  pos = HMM_SubV2(pos, campos);
+  pos = HMM_SubV2(pos, HMM_V2(cam_pos().x, cam_pos().y));
-  pos = HMM_ScaleV2(pos, 1.0/camzoom);
+  pos = HMM_ScaleV2(pos, 1.0/zoom);
   pos = HMM_AddV2(pos, HMM_ScaleV2(mainwin.size,0.5));
   return pos;
 }
@@ -371,8 +376,8 @@ HMM_Vec2 screen2world(HMM_Vec2 pos)
 {
   pos = HMM_ScaleV2(pos, 1/mainwin.dpi);
   pos = HMM_SubV2(pos, HMM_ScaleV2(mainwin.size, 0.5));
-  pos = HMM_ScaleV2(pos, camzoom);
+  pos = HMM_ScaleV2(pos, zoom);
-  pos = HMM_AddV2(pos, campos);
+  pos = HMM_AddV2(pos, HMM_V2(cam_pos().x, cam_pos().y));
   return pos;
 }
 
@@ -410,7 +415,7 @@ void full_3d_pass(struct window *window)
   sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(subo));
 }
 
-void openglRender(struct window *window, gameobject *cam, float zoom) {
+void openglRender(struct window *window) {
   sg_swapchain sch = sglue_swapchain();
   sg_begin_pass(&(sg_pass){
     .action = pass_action,
@@ -445,14 +450,13 @@ void openglRender(struct window *window, gameobject *cam, float zoom) {
   }
 
   // 2D projection
-  campos = go_pos(cam);
+  cpVect pos = cam_pos();
-  camzoom = zoom;
 
   projection = HMM_Orthographic_LH_NO(
-             campos.x - camzoom * usesize.x / 2,
+             pos.x - zoom * usesize.x / 2,
-             campos.x + camzoom * usesize.x / 2,
+             pos.x + zoom * usesize.x / 2,
-             campos.y - camzoom * usesize.y / 2,
+             pos.y - zoom * usesize.y / 2,
-             campos.y + camzoom * usesize.y / 2, -10000.f, 10000.f);
+             pos.y + zoom * usesize.y / 2, -10000.f, 10000.f);
 
   hudproj = HMM_Orthographic_LH_ZO(0, usesize.x, 0, usesize.y, -1.f, 1.f);
 

source/engine/render.h

@@ -14,7 +14,6 @@
 
 #include "sokol/sokol_gfx.h"
 #include "HandmadeMath.h"
-#include "gameobject.h"
 
 #define RGBA_MAX 255
 
@@ -53,16 +52,17 @@ enum RenderMode {
 };
 
 void render_init();
-extern HMM_Vec2 campos;
+void openglRender(struct window *window);
-extern float camzoom;
-
-void openglRender(struct window *window, gameobject *cam, float zoom);
 void opengl_rendermode(enum RenderMode r);
 
 void openglInit3d(struct window *window);
 void openglRender3d(struct window *window, camera3d *camera);
 void capture_screen(int x, int y, int w, int h, const char *path);
 
+void set_cam_body(cpBody *body);
+cpVect cam_pos();
+float cam_zoom();
+void add_zoom(float val);
 HMM_Vec2 world2screen(HMM_Vec2 pos);
 HMM_Vec2 screen2world(HMM_Vec2 pos);
 

source/engine/script.c

@@ -29,7 +29,9 @@ void script_startup() {
 
 void script_stop()
 {
+  script_evalf("Event.notify('quit');");
   script_evalf("prosperon.quit();");
+  ffi_stop();
 
 #if LEAK
   JS_FreeContext(js);

source/engine/sprite.c

@@ -207,8 +207,8 @@ void sprite_draw(struct sprite *sprite) {
   if (!sprite->go) t = t2d_unit;
   else t = go2t(sprite->go);
   
-  t.pos.x += (campos.x - (campos.x/sprite->parallax));
+  t.pos.x += (cam_pos().x - (cam_pos().x/sprite->parallax));
-  t.pos.y += (campos.y - (campos.y/sprite->parallax));
+  t.pos.y += (cam_pos().y - (cam_pos().y/sprite->parallax));
   HMM_Mat3 m = transform2d2mat(t);
   HMM_Mat3 sm = transform2d2mat(sprite2t(sprite));
   tex_draw(sprite->tex, HMM_MulM3(m,sm), sprite->frame, sprite->color, sprite->drawmode, (HMM_Vec2){0,0}, sprite->scale, sprite->emissive, sprite->parallax);

source/engine/yugine.c

@@ -201,7 +201,6 @@ int main(int argc, char **argv) {
   signal(SIGABRT, seghandle);
   signal(SIGFPE, seghandle);
 #endif
-  phys2d_init();  
 
   resources_init();
   stm_setup(); /* time */
@@ -238,6 +237,7 @@ void engine_start(JSValue start, JSValue procfn)
   c_process_fn = procfn;
 
   sound_init();
+  phys2d_init();  
 
   start_desc.width = mainwin.size.x;
   start_desc.height = mainwin.size.y;