Add delete operator to meshes tab

Sources/arm/io/ImportMesh.hx

@@ -155,6 +155,15 @@ class ImportMesh {
 			object.name = mesh.name;
 			object.skip_context = "paint";
 
+			// Ensure unique names
+			for (p in Project.paintObjects) {
+				if (p.name == object.name) {
+					p.name += ".001";
+					p.data.handle += ".001";
+					Data.cachedMeshes.set(p.data.handle, p.data);
+				}
+			}
+
 			Project.paintObjects.push(object);
 
 			md.handle = raw.name;

Sources/arm/ui/TabMeshes.hx

@@ -65,7 +65,8 @@ class TabMeshes {
 
 			ui.endSticky();
 
-			for (o in Project.paintObjects) {
+			for (i in 0...Project.paintObjects.length) {
+				var o = Project.paintObjects[i];
 				var h = Id.handle();
 				h.selected = o.visible;
 				o.visible = ui.check(h, o.name);
@@ -75,7 +76,26 @@ class TabMeshes {
 						if (ui.button(tr("Export"), Left)) {
 							BoxExport.showMesh();
 						}
-					}, 2);
+						if (Project.paintObjects.length > 1 && ui.button(tr("Delete"), Left)) {
+							Project.paintObjects.remove(o);
+							while (o.children.length > 0) {
+								var child = o.children[0];
+								o.removeChild(child);
+								if (Project.paintObjects[0] != child) {
+									Project.paintObjects[0].addChild(child);
+								}
+								if (o.children.length == 0) {
+									Project.paintObjects[0].transform.scale.setFrom(o.transform.scale);
+									Project.paintObjects[0].transform.buildMatrix();
+								}
+							}
+							iron.data.Data.deleteMesh(o.data.handle);
+							o.remove();
+							Context.paintObject = Context.mainObject();
+							MeshUtil.mergeMesh();
+							Context.ddirty = 2;
+						}
+					}, Project.paintObjects.length > 1 ? 3 : 2);
 				}
 				if (h.changed) {
 					var visibles: Array<MeshObject> = [];