Clone traits

Sources/arm/io/ImportMesh.hx

@@ -115,7 +115,6 @@ class ImportMesh {
 				var ar = path.split("/");
 				var s = ar[ar.length - 1];
 				object.name = s.substring(0, s.length - 4);
-
 				// md.geom.calculateAABB();
 				// var aabb = md.geom.aabb;
 				// var dim = new TFloat32Array(3);
@@ -123,10 +122,6 @@ class ImportMesh {
 				// dim[1] = aabb.y;
 				// dim[2] = aabb.z;
 				// object.raw.dimensions = dim;
-				#if arm_physics
-				object.addTrait(new arm.plugin.PhysicsBody());
-				#end
-
 				Context.selectObject(object);
 			}
 			else { // Replace

Sources/arm/plugin/Gizmo.hx

@@ -54,9 +54,10 @@ class Gizmo {
 
 					object.transform.buildMatrix();
 
-					#if arm_physics
-					object.addTrait(new arm.plugin.PhysicsBody());
-					#end
+					for (t in mo.traits) { // Clone traits
+						var trait = Type.createInstance(Type.getClass(t), []);
+						object.addTrait(trait);
+					}
 
 					Context.selectObject(object);
 				}
@@ -70,10 +71,6 @@ class Gizmo {
 					object.transform.scale.setFrom(lo.transform.scale);
 					object.transform.buildMatrix();
 
-					#if arm_physics
-					object.addTrait(new arm.plugin.PhysicsBody());
-					#end
-
 					Context.selectObject(object);
 				}
 				Context.rdirty = 3;

Sources/arm/plugin/PhysicsBody.hx

@@ -14,7 +14,20 @@ class PhysicsBody extends iron.Trait {
 	@:keep
 	public var props = ["mass"];
 
-	public var mass = 1.0;
+	public var mass(default, set) = 0.0;
+
+	@:keep
+	function set_mass(f: Float): Float {
+		if (ready) {
+			remove();
+			var t = new PhysicsBody();
+			t.mass = f;
+			object.addTrait(t);
+		}
+		else mass = f;
+		return f;
+	}
+
 	public var friction = 0.5;
 	public var restitution = 0.0;
 	public var collisionMargin = 0.0;

Sources/arm/ui/TabTraits.hx

@@ -18,7 +18,6 @@ class TabTraits {
 				ui.row([1 / 4]);
 				if (ui.button("New")) {
 					UIMenu.draw(function(ui:Zui) {
-						ui.fill(0, 0, ui._w / ui.SCALE(), ui.t.ELEMENT_H * traits.length, ui.t.SEPARATOR_COL);
 						ui.text("New", Right, ui.t.HIGHLIGHT_COL);
 						for (t in traits) {
 							if (ui.button(t, Left)) {
@@ -28,7 +27,7 @@ class TabTraits {
 								Context.object.addTrait(inst);
 							}
 						}
-					});
+					}, traits.length);
 				}
 
 				if (Context.object.traits.length > 0) {
@@ -38,7 +37,7 @@ class TabTraits {
 							var id = Id.handle();
 							id.value = Reflect.field(t, untyped t.props[i]);
 							ui.slider(id, untyped t.props[i]);
-							Reflect.setField(t, untyped t.props[i], id.value);
+							if (id.changed) Reflect.setProperty(t, untyped t.props[i], id.value);
 						}
 					}
 				}