correct polygon2d saving and editing

scripts/base.js

@@ -392,14 +392,6 @@ Object.defineProperty(Array.prototype, 'rotate', {
   }
 });
 
-
-Object.defineProperty(Array.prototype, '$add', {
-value: function(b) {
-  for (var i = 0; i < this.length; i++) {
-    this[i] += b[i];
-  }
-}});
-
 function setelem(n) {
   return {
     get: function() { return this[n]; },
@@ -421,7 +413,6 @@ arrsetelem('g', 1);
 arrsetelem('b', 2);
 arrsetelem('a', 3);
 
-
 Object.defineProperty(Array.prototype, 'add', {
 value: function(b) {
   var c = [];

scripts/components.js

@@ -351,11 +351,6 @@ collider2d.inputs['M-t'] = function() { this.enabled = !this.enabled; }
 collider2d.inputs['M-t'].doc = "Toggle if this collider is enabled.";
 
 component.polygon2d = Object.copy(collider2d, {
-  ur: {
-    flipx: false,
-    flipy: false
-  },
-  
   sync() {
     cmd_poly2d(0, this.id, this.spoints);
   },
@@ -367,7 +362,7 @@ component.polygon2d = Object.copy(collider2d, {
   make(go) {
     var poly = Object.create(this);
     poly.gameobject = go;
-    poly.points = [];
+    poly.points = [0,0];
     poly.flipx = false;
     poly.flipy = false;
     Object.assign(poly, make_poly2d(go.body, poly.points));
@@ -398,8 +393,6 @@ component.polygon2d = Object.copy(collider2d, {
   },
   
   gizmo() {
-    if (!this.hasOwn('points')) this.points = this.__proto__.points.copy();
-    
     this.spoints.forEach(function(x) {
       Debug.point(world2screen(this.gameobject.this2world(x)), 3, Color.green);
     }, this);
@@ -410,7 +403,19 @@ component.polygon2d = Object.copy(collider2d, {
   },
 
   pick(pos) {
-    return Gizmos.pick_gameobject_points(pos, this.gameobject, this.points);
+    var p = Gizmos.pick_gameobject_points(pos, this.gameobject, this.points);
+    if (p) {
+      return {
+      set pos(n) {
+        p.x = n.x;
+	p.y = n.y;
+      },
+      get pos() { return p; },
+      sync: this.sync.bind(this)
+    }
+    }
+      
+    return undefined;
   },
   
   query() {

scripts/debug.js

@@ -1,7 +1,7 @@
 var Gizmos = {
   pick_gameobject_points(worldpos, gameobject, points) {
     var idx = grab_from_points(worldpos, points.map(gameobject.this2world,gameobject), 25);
-    if (idx === -1) return null;
+    if (idx === -1) return undefined;
     return points[idx];
   },
 };

scripts/editor.js

@@ -992,10 +992,7 @@ editor.inputs.mm = function() {
     }
     
     if (editor.sel_comp && 'pick' in editor.sel_comp) {
-      editor.grabselect = editor.sel_comp.pick(Mouse.worldpos);
-      if (!editor.grabselect) return;
-      
-//      editor.moveoffset = editor.sel_comp.gameobject.editor2world(editor.grabselect).sub(Mouse.worldpos);
+      editor.grabselect = [editor.sel_comp.pick(Mouse.worldpos)];
       return;
     }
 
@@ -1045,7 +1042,11 @@ editor.inputs.mouse.move = function(pos, dpos)
       editor.camera.pos = editor.camera.pos.sub(dpos.scale(editor.camera.zoom));
   }
 
-  editor.grabselect?.forEach(x => x.pos = x.pos.add(dpos.scale(editor.camera.zoom)));
+  editor.grabselect?.forEach(function(x) {
+    x.pos = x.pos.add(dpos.scale(editor.camera.zoom));
+    if ('sync' in x)
+      x.sync();
+  });
   
   var relpos = Mouse.worldpos.sub(editor.cursor);
   var dist = Vector.length(relpos);

scripts/engine.js

@@ -542,16 +542,35 @@ var ur_json = function()
 {
   function objdiff(from, to) {
     if (!to) return from; // Everything on from is unique
-    var ret = {};
 
+
+    var ret = {};
+    
     for (var key in from) {
       if (!from[key] || !to[key]) continue;
       if (typeof from[key] === 'function') continue;
       if (typeof to === 'object' && !(key in to)) continue;
 
-      if (typeof from[key] === 'object') {
+      if (Array.isArray(from[key])) {
+	if (!Array.isArray(to[key]))
+	  ret[key] = from[key].slice();
+
+	if (from[key].length !== to[key].length)
+	  ret[key] = from[key].slice();
+
 	var diff = objdiff(from[key], to[key]);
-	if (diff && !diff.empty) ret[key] = diff;
+	if (diff && !diff.empty)
+	  ret[key] = from[key];
+
+        continue;
+      }
+
+
+      if (typeof from[key] === 'object') {
+        if (key === 'points') Log.warn("POINTS");
+	var diff = objdiff(from[key], to[key]);
+	if (diff && !diff.empty)
+            ret[key] = diff;	
 	continue;
       }
       

scripts/entity.js

@@ -205,7 +205,12 @@ var gameobject = {
       set friction(x) { cmd(108,this.body,x); },
 
       set mass(x) { set_body(7,this.body,x); },
-      get mass() { return q_body(5, this.body); },
+      get mass() {
+        if (!(this.phys === Physics.dynamic))
+	  return this.ur.mass;
+	  
+        return q_body(5, this.body);
+      },
 
       set phys(x) { set_body(1, this.body, x); },
       get phys() { return q_body(0,this.body); },
@@ -363,13 +368,12 @@ var gameobject = {
         Log.warn(`spawning a ${p.comp}`);
         obj[prop] = component[p.comp].make(obj);
 	obj.components[prop] = obj[prop];
-//	obj[prop].ur = Object.create(obj[prop].ur);
-//	Object.totalmerge(obj[prop].ur, p);
       }
     };
 
     Object.totalmerge(obj,ur);
     obj.$.forEach(function(x) { x.pos = obj.pos.add(x.pos); });
+    obj.components.forEach(function(x) { if ('sync' in x) x.sync(); });
     obj.check_registers(obj);
     
     if (typeof obj.start === 'function') obj.start();

scripts/std.js

@@ -51,11 +51,15 @@ var Log = {
   },
 
   write(msg) {
+    if (typeof msg === 'object')
+      msg = JSON.stringify(msg,null,2);
+  
     cmd(91,msg);
   },
 
   say(msg) {
-    cmd(91, `${msg}\n`);
+    Log.write(msg);
+    Log.write('\n');
   },
 
   stack(skip = 0) {

source/engine/2dphysics.c

@@ -296,6 +296,7 @@ struct phys2d_box *Make2DBox(int go) {
   new->offset[0] = 0.f;
   new->offset[1] = 0.f;
   new->shape.go = go;
+  new->shape.apply = phys2d_applybox;
   phys2d_applybox(new);
   new->shape.debugdraw = phys2d_dbgdrawbox;
   new->shape.moi = phys2d_box_moi;
@@ -362,6 +363,7 @@ struct phys2d_poly *Make2DPoly(int go) {
   new->shape.shape = cpSpaceAddShape(space, cpPolyShapeNewRaw(id2go(go)->body, 0, new->points, new->radius));
   new->shape.debugdraw = phys2d_dbgdrawpoly;
   new->shape.moi = phys2d_poly_moi;
+  new->shape.apply = phys2d_applypoly;
   init_phys2dshape(&new->shape, go, new);
   return new;
 }
@@ -433,6 +435,7 @@ struct phys2d_edge *Make2DEdge(int go) {
   new->shape.debugdraw = phys2d_dbgdrawedge;
   new->shape.moi = phys2d_edge_moi;
   new->shape.shape = NULL;
+  new->shape.apply = phys2d_applyedge;
   new->draws = 0;
   new->closed = 0;
   phys2d_applyedge(new);