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ICSE Class X Textbook 2026 : Chemistry Example Benavidez

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Insomniac s Web Tools (a postmortem) Andreas Fredriksson Lead Engine Programmer Insomniac Games Hi, I m Andreas Hi, I m Andreas I lead the tools & infrastructure team at Insomniac Hi, I m Andreas I lead the tools & infrastructure team at Insomniac So you guys have web tools? #1 conversation opener Our web tools exodus Our web tools exodus Disclosure: We have abandoned web tools development Our web tools exodus Disclosure: We have abandoned web tools development This talk is about what was good Our web tools exodus Disclosure: We have abandoned web tools development This talk is about what was good And what wasn t so good The 2010 Web Tools Vision The 2010 Web Tools Vision Overhauling tools+engine for cross-platform tech reboot The 2010 Web Tools Vision Overhauling tools+engine for cross-platform tech reboot Games having ever-bigger data sets New focus on visualization and mining The 2010 Web Tools Vision Overhauling tools+engine for cross-platform tech reboot Games having ever-bigger data sets New focus on visualization and mining More UI innovation in the web space! Compared to desktop space Also true of mobile space The 2010 Web Tools Vision Overhauling tools+engine for cross-platform tech reboot Games having ever-bigger data sets More UI innovation in the web space! New focus on visualization and mining Compared to desktop space Also true of mobile space Strong team drive to try new things 2010 vision, continued Hire awesome web people! http://www.codingdojo.com/blog/9-most-in-demandprogramming-languages-of-2016/ 2010 vision: Everyone can make a web page Lower the barrier to entry! Empower the team to roll out simpler stuff whenever 2010 vision: There s tons of off the shelf web stuff 2010 vision: There s tons of off the shelf web stuff Lots, lots, lots out there 2010 vision: There s tons of off the shelf web stuff Lots, lots, lots out there Open ecosystem 2010 vision: There s tons of off the shelf web stuff Lots, lots, lots out there Open ecosystem Fewer wheels to reinvent 2010 vision: Enforce one-way data pipeline Tools Engine 2010 vision: Enforce one-way data pipeline Source Data Built Data Tools Engine 2010 vision: Enforce one-way data pipeline Source Data Tools Builders Built Data Engine 2010 vision: Web browser = Data Sandbox 2010 vision: Web browser = Data Sandbox Hard to call browser logic from engine 2010 vision: Web browser = Data Sandbox Hard to call browser logic from engine Hard to call engine logic from browser 2010 vision: Web browser = Data Sandbox Hard to call browser logic from engine Hard to call engine logic from browser Much easier to do the right thing instead (write a builder) 2010 grand vision Zero install tools Have a browser? You re good to go. So that was the vision.. So that was the vision.. and the team started building stuff So that was the vision.. and the team started building stuff Core Team = a bunch of C++ experts With almost no web experience at this point So that was the vision.. and the team started building stuff Core Team = a bunch of C++ experts With almost no web experience at this point We had 3-5 people working on web tools full time for 5 years Early days, early decisions Early days, early decisions Single browser: Chrome Avoid the web compatibility/standards problem Leverage Chrome team smarts - let them worry about browser! Early days, early decisions Single browser: Chrome Avoid the web compatibility/standards problem Leverage Chrome team smarts - let them worry about browser! 3D native engine view? Jam a native child window into Chrome! Tiny amount of glue code in a plugin needed Early days, early decisions Single browser: Chrome 3D native engine view? Avoid the web compatibility/standards problem Leverage Chrome team smarts - let them worry about browser! Jam a native child window into Chrome! Tiny amount of glue code in a plugin needed Where do web pages come from? A server! NTFS Source Asset Management Mongo DB LunaServer NTFS Source Asset Management Mongo DB LunaServer Web Tools Chrome Tool NTFS Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Tools 3D View Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Build System Asset Builder LunaTracker Tools 3D View LMDB Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Build System Asset Builder LunaTracker Tools 3D View LMDB Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Build System Asset Builder LunaTracker Tools 3D View LMDB Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Build System Asset Builder LunaTracker Tools 3D View LMDB Source Asset Management Mongo DB NTFS LunaServer Web Tools Chrome Tool Build System Asset Builder LunaTracker LMDB Tools 3D View Game Vision meets reality: Early tradeoffs Vision meets reality: Early tradeoffs Desktop look and feel Early UX tests revealed dislike of odd stuff Traditional concepts like menu bars strongly desired Vision meets reality: Early tradeoffs Desktop look and feel Early UX tests revealed dislike of odd stuff Traditional concepts like menu bars strongly desired Has to work together with Maya, Photoshop, It s not a web app on a deserted island, it exists side by side Vision meets reality: Early tradeoffs Desktop look and feel Has to work together with Maya, Photoshop, Early UX tests revealed dislike of odd stuff Traditional concepts like menu bars strongly desired It s not a web app on a deserted island, it exists side by side We can t do that because it s a web app not a valid excuse Our web tools: A gallery A complete AAA tool suite in the browser Not trying to impress you Need to understand the scope to get the rest of the talk 3D View SceneEditor.exe attached to Chrome 3D View SceneEditor.exe attached to Chrome 3D View SceneEditor.exe attached to Chrome That s a lot of stuff! That s a lot of stuff! We definitely answered the is it even possible question That s a lot of stuff! We definitely answered the is it even possible question 340,000 Javascript LOC, ~1,000 files Excluding generated and 3rd party code That s a lot of stuff! We definitely answered the is it even possible question 340,000 Javascript LOC, ~1,000 files Excluding generated and 3rd party code 500,000 C++ LOC of server infrastructure & builders What went right What went right What went right Debugger and profiler on every machine Chrome dev tools are decent What went right Debugger and profiler on every machine Chrome dev tools are decent Achieved clean data separation What went right Debugger and profiler on every machine Chrome dev tools are decent Achieved clean data separation Centralized undo/redo What went right Debugger and profiler on every machine Chrome dev tools are decent Achieved clean data separation Centralized undo/redo Symbolic data manipulation Right: Central undo/redo Server Tool Right: Central undo/redo Server Proposed Change: Delta JSON Tool Right: Central undo/redo Change Log Server Proposed Change: Delta JSON Tool Right: Central undo/redo Change Log Server Change: Delta JSON Proposed Change: Delta JSON Tool Right: Central undo/redo Change Log Server Change: Delta JSON Change: Delta JSON Proposed Change: Delta JSON Tool Tool Right: Central undo/redo Undo/Redo! Server Right: Central undo/redo Undo/Redo! Change Log Server Right: Central undo/redo Undo/Redo! Change Log Server Undo Change: Delta JSON Tool Undo Change: Delta JSON Tool Right: Symbolic Data Manipulation Right: Symbolic Data Manipulation Need to be able to edit any piece of game data in web tools Right: Symbolic Data Manipulation Need to be able to edit any piece of game data in web tools Can t link to game (C++) code from web browser Right: Symbolic Data Manipulation Need to be able to edit any piece of game data in web tools Can t link to game (C++) code from web browser struct MySpecialObject { int32 Hitpoints; // Default = 100 float Shininess; // Default = 3.5 // } Right: Symbolic Data Manipulation Solution: Edit all data formats using meta-data DDL compiler outputs both C++ code and metadata for tools Use symbolic meta-data in tools to edit assets Useful in native tools as well, reduces coupling MySpecialObject metadata: Name= Hitpoints Type=i32 Default=100 Name= Shininess Type=f32 Default=3.5 // So, what went wrong? So, what went wrong? {} yourselves Wrong: Early web mindset Wrong: Early web mindset It s just a web page Wrong: Early web mindset It s just a web page In rush to try to get something out the door Wrong: Early web mindset It s just a web page In rush to try to get something out the door Poor engineering style early on No tests Global variables aplenty Learning as we were going Wrong: Javascript Wrong: Javascript So much pain a toy language that is still growing up Wrong: Javascript So much pain a toy language that is still growing up undefined is not a function Wrong: Javascript So much pain a toy language that is still growing up undefined is not a function Silently breaking other parts of the codebase Renaming a function = super high risk Adding a parameter? Good luck! Relying on grep or IDE searching to fix up references often fails Wrong: Javascript So much pain a toy language that is still growing up undefined is not a function Silently breaking other parts of the codebase Renaming a function = super high risk Adding a parameter? Good luck! Relying on grep or IDE searching to fix up references often fails Add quick fixes on top and you ve got a nightmare Wrong: No heavy lifting Wrong: No heavy lifting JS single-threaded (web workers are a joke) Wrong: No heavy lifting JS single-threaded (web workers are a joke) Garbage collection Wrong: No heavy lifting JS single-threaded (web workers are a joke) Garbage collection Impractical to work with full game dataset Sunset Overdrive's streaming optimization, for example Wrong: LunaServer became a dumping ground Wrong: LunaServer became a dumping ground Anything you can t do in the browser goes in the server.. Wrong: LunaServer became a dumping ground Anything you can t do in the browser goes in the server.. LunaServer quickly grew bigger and bigger Random program launching File system interfaces Desktop interop services Perforce interfaces Wrong: LunaServer became a dumping ground Anything you can t do in the browser goes in the server.. LunaServer quickly grew bigger and bigger Random program launching File system interfaces Desktop interop services Perforce interfaces Lots of technical debt unless planned for carefully! Wrong: LunaServer became a dumping ground Anything you can t do in the browser goes in the server.. LunaServer quickly grew bigger and bigger Random program launching File system interfaces Desktop interop services Perforce interfaces Lots of technical debt unless planned for carefully! Is this still used? Grep all the code and hope for the best! Mixed: Javascript on V8 Mixed: Javascript on V8 Optimizing for performance can be non-intuitive Programming several layers away from actual compiler Mixed: Javascript on V8 Optimizing for performance can be non-intuitive Programming several layers away from actual compiler V8 optimization best practices change over time Keeping up on this for 300k LOC is a hard problem Mixed: Javascript on V8 Optimizing for performance can be non-intuitive V8 optimization best practices change over time Programming several layers away from actual compiler Keeping up on this for 300k LOC is a hard problem Often conflicts between idiomatic vs fast Mixed: Javascript on V8 Optimizing for performance can be non-intuitive V8 optimization best practices change over time Programming several layers away from actual compiler Keeping up on this for 300k LOC is a hard problem Often conflicts between idiomatic vs fast Lack of information and what good looks like Many web frameworks have poor performance Wrong: V8 Stability Wrong: V8 Stability We wanted to use ES6/Harmony features In particular, let fixes block scope terribleness Wrong: V8 Stability We wanted to use ES6/Harmony features In particular, let fixes block scope terribleness Great until Browser crashed in production, randomly Debugger crashed trying to debug it Wrong: V8 Stability We wanted to use ES6/Harmony features Great until In particular, let fixes block scope terribleness Browser crashed in production, randomly Debugger crashed trying to debug it Resorted to taking it all out again Wrong: Promises Lots of things you wait for in JS Because you re constantly talking to some server Wrong: Promises Lots of things you wait for in JS Because you re constantly talking to some server Event handling this is messy Wrong: Promises Lots of things you wait for in JS Because you re constantly talking to some server Event handling this is messy Promises hope to solve this problem animSetMojo.Source.prototype.loadAnimSetActor = function() { if ( !this.isConnected() ) { return Q.resolve(); } return this.onStage1FetchActor() .then( this._private.callbacks.onStage2PreLoadAssets ) .then( this._private.callbacks.onWaitForAssetLoad ) .then( this._private.callbacks.onStage3CreateActor ) .then( this._private.callbacks.onWaitForAssetLoad ) .then( this._private.callbacks.onStage4WatchActor ) .then( this._private.callbacks.onStage5Focus ); }; animSetMojo.Source.prototype.loadAnimSetActor = function() { if ( !this.isConnected() ) { return Q.resolve(); } return this.onStage1FetchActor() .then( this._private.callbacks.onStage2PreLoadAssets ) .then( this._private.callbacks.onWaitForAssetLoad ) .then( this._private.callbacks.onStage3CreateActor ) .then( this._private.callbacks.onWaitForAssetLoad ) .then( this._private.callbacks.onStage4WatchActor ) .then( this._private.callbacks.onStage5Focus ); }; Promise Chain Promises = Now all your crashes look like this TypeError: Cannot read property 'Path' of null at vault.js:1614 at _fulfilled (q-0.9.6.js:714) at self.promiseDispatch.done (q-0.9.6.js:743) at Promise.promise.promiseDispatch (q-0.9.6.js: 680) at q-0.9.6.js:554 at MessagePort.flush (q-0.9.6.js:108) msgLog.error @ msgLog.js:168 (anonymous) @ msgLog.js:195 defaultQPromiseErrorHandler @ env.js:928 (anonymous) @ q-0.9.6.js:1553 flush @ q-0.9.6.js:108 Promises = Now all your crashes look like this TypeError: Cannot read property 'Path' of null at vault.js:1614 at _fulfilled (q-0.9.6.js:714) at self.promiseDispatch.done (q-0.9.6.js:743) at Promise.promise.promiseDispatch (q-0.9.6.js: 680) at q-0.9.6.js:554 at MessagePort.flush (q-0.9.6.js:108) msgLog.error @ msgLog.js:168 (anonymous) @ msgLog.js:195 defaultQPromiseErrorHandler @ env.js:928 (anonymous) @ q-0.9.6.js:1553 flush @ q-0.9.6.js:108 Your code Promises = Now all your crashes look like this TypeError: Cannot read property 'Path' of null at vault.js:1614 at _fulfilled (q-0.9.6.js:714) at self.promiseDispatch.done (q-0.9.6.js:743) at Promise.promise.promiseDispatch (q-0.9.6.js: 680) at q-0.9.6.js:554 at MessagePort.flush (q-0.9.6.js:108) msgLog.error @ msgLog.js:168 (anonymous) @ msgLog.js:195 defaultQPromiseErrorHandler @ env.js:928 (anonymous) @ q-0.9.6.js:1553 flush @ q-0.9.6.js:108 Your code Unrelated, generic & useless Typescript Typescript Adds a type system on top of JS Typescript Adds a type system on top of JS We started migrating in late 2014 Typescript Adds a type system on top of JS We started migrating in late 2014 Adding types means adding documentation/semantics Typescript Adds a type system on top of JS We started migrating in late 2014 Adding types means adding documentation/semantics It also means adding build steps JS just lost 98% of the quick fix appeal Right/Wrong: Typescript Right/Wrong: Typescript Definitely helps, but still not perfect Right/Wrong: Typescript Definitely helps, but still not perfect Still very possible to write buggy code in it Use *all* the strictness options if you have a choice Right/Wrong: Typescript Definitely helps, but still not perfect Still very possible to write buggy code in it Use *all* the strictness options if you have a choice AMD/CommonJS module system interop was hairy Right/Wrong: Typescript Definitely helps, but still not perfect Still very possible to write buggy code in it Use *all* the strictness options if you have a choice AMD/CommonJS module system interop was hairy Wrapping JS modules with declarations was hairy Wrong: Too many frameworks Wrong: Too many frameworks Web is all about rapid evolution Wrong: Too many frameworks Web is all about rapid evolution Most web apps don t have 300k LOC Ours did, can t keep up with web evolution at this codebase size Wrong: Too many frameworks Web is all about rapid evolution Most web apps don t have 300k LOC Ours did, can t keep up with web evolution at this codebase size Ended up with way to many 3rd party frameworks All at once Wrong: Too many frameworks Web is all about rapid evolution Most web apps don t have 300k LOC Ended up with way to many 3rd party frameworks Ours did, can t keep up with web evolution at this codebase size All at once Prevents sharing solutions between tools/pages Too many one-offs that can t be reused Wrong: Off the shelf is mostly useless Wrong: Off the shelf is mostly useless Most stuff simply doesn t scale to AAA data sizes Most web sites have dozens of things, we have tens of thousands Different constraints Wrong: Off the shelf is mostly useless Most stuff simply doesn t scale to AAA data sizes Most web sites have dozens of things, we have tens of thousands Different constraints Often designed to be easy to use or friendly Case in point: Tree views Case in point: Tree views jstree is a popular web tree control we evaluated Case in point: Tree views jstree is a popular web tree control we evaluated I would think that performance with a mere 1,000 nodes should be unnoticeable. However, on my i7 machine with 12 GB ram, it takes almost a minute and a half in Chrome to drag and drop those 1,000 nodes somewhere else in the tree Case in point: Color picker pick a color you like vs hard core pro user requirements Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Case in point: Color picker pick a color you like vs hard core pro user requirements Most web controls Advanced web Pro space Right/Wrong: node.js Right/Wrong: node.js Using the web stack from scripts has value Reuse well tested code in batch scripts Right/Wrong: node.js Using the web stack from scripts has value Reuse well tested code in batch scripts node.js is a terrible ecosystem Dependency hell (remember left-pad?) Right/Wrong: node.js Using the web stack from scripts has value node.js is a terrible ecosystem Reuse well tested code in batch scripts Dependency hell (remember left-pad?) After light use we lug around 90 MB of deps 8,500 files Right/Wrong: node.js Using the web stack from scripts has value node.js is a terrible ecosystem Reuse well tested code in batch scripts Dependency hell (remember left-pad?) After light use we lug around 90 MB of deps 8,500 files Found debugging & profiling super flaky Wrong: JSON data in code as objects Wrong: JSON data in code as objects Mistake: Used JSON asset data as JS objects directly undefined everywhere when data formats change Fix litters code with if (typeof(thing) !== undefined ) Wrong: JSON data in code as objects Mistake: Used JSON asset data as JS objects directly undefined everywhere when data formats change Fix litters code with if (typeof(thing) !== undefined ) Obviously bad in hindsight, but was an easy trap to fall into Maintenance cost is astronomical, because it s just strings No compile time help, grep and test all code branches Wrong: JSON data in code as objects Mistake: Used JSON asset data as JS objects directly Obviously bad in hindsight, but was an easy trap to fall into undefined everywhere when data formats change Fix litters code with if (typeof(thing) !== undefined ) Maintenance cost is astronomical, because it s just strings No compile time help, grep and test all code branches Partly fixed with symbolic access library (too late) Wrong: It s OK, it s just in the Javascript Wrong: It s OK, it s just in the Javascript Belief that it was OK to hack stuff in because it s just script Very easy to deploy hacks and local changes and get away with it Tempting to work around hot issues this way Probably our C++ bias led to this mistake Wrong: It s OK, it s just in the Javascript Belief that it was OK to hack stuff in because it s just script Very easy to deploy hacks and local changes and get away with it Tempting to work around hot issues this way Probably our C++ bias led to this mistake Manifested as a legacy of unmaintainable hacks Performance regressions, copy-pasta Especially bad in first generation JS code which is still in production The Document Object Model (DOM) The Document Object Model (DOM) Hardest part of performant web tools Black art The Document Object Model (DOM) Hardest part of performant web tools Black art Reflows kill your performance Sandwich in a complete rebuild of your UI at random places The Document Object Model (DOM) Hardest part of performant web tools Reflows kill your performance Black art Sandwich in a complete rebuild of your UI at random places Using animation frames is critical to performance Not well understood Lesson: JS needs more rigor than C++, not less Lesson: JS needs more rigor than C++, not less Suspect this is true in any dynamically typed ecosystem Lesson: JS needs more rigor than C++, not less Suspect this is true in any dynamically typed ecosystem Especially hard for people jumping in only occasionally Typically non JS programmers left huge messes Did not want to invest in learning the web tools way Wrong: Have you cleared cache? Wrong: Have you cleared cache? Chrome caches very aggressively Clear cache, or risk running with random JS code out of date Wrong: Have you cleared cache? Chrome caches very aggressively Clear cache, or risk running with random JS code out of date Constant drain on support and user base Handful of support issues every week due to this Wrong: Have you cleared cache? Chrome caches very aggressively Constant drain on support and user base Clear cache, or risk running with random JS code out of date Handful of support issues every week due to this Laughably bad compared to native tool deployment From: -REDACTED- Sent: Tuesday, January 31, 2017 6:30 PM To: Syndicate Subject: FW: BUG - cannot create new collections I swung by REDACTED-, No amount of clearing cache/reloading extensions/restarting chrome got this fixed. We cannot repro either. Anyone know what might be going on here? Wrong: Try reinstalling the plugin Wrong: Try reinstalling the plugin Plugin part of the desktop interop 3D view, window management Wrong: Try reinstalling the plugin Plugin part of the desktop interop 3D view, window management NPAPI drop mandated rewrite Wrong: Try reinstalling the plugin Plugin part of the desktop interop 3D view, window management NPAPI drop mandated rewrite Forced Chrome Store requirement Now have security warnings on every launch of the tools Wrong: Try reinstalling the plugin Plugin part of the desktop interop 3D view, window management NPAPI drop mandated rewrite Forced Chrome Store requirement Now have security warnings on every launch of the tools Wrong: You re not in charge Wrong: You re not in charge Chrome team doesn t care about your tools Wrong: You re not in charge Chrome team doesn t care about your tools Auto-updates will break everything Constant source of downtime & panic Random API changes, flash 0-day bugfixes, V8 regressions Wrong: You re not in charge Chrome team doesn t care about your tools Auto-updates will break everything Constant source of downtime & panic Random API changes, flash 0-day bugfixes, V8 regressions Can run Canary builds to catch some of it early But you re still not in charge Always a scramble to fix things last moment Policies = The Nuclear Option You can control some policies for Chrome Policies = The Nuclear Option You can control some policies for Chrome Used auto-update disable hammer to ship Sunset Frozen branch meant we couldn't get Chrome breakage fixes into that game's codebase Policies = The Nuclear Option You can control some policies for Chrome Used auto-update disable hammer to ship Sunset Frozen branch meant we couldn't get Chrome breakage fixes into that game's codebase Plenty of user pushback about restricting Chrome Favored daily browser Policies = The Nuclear Option You can control some policies for Chrome Used auto-update disable hammer to ship Sunset Plenty of user pushback about restricting Chrome Frozen branch meant we couldn't get Chrome breakage fixes into that game's codebase Favored daily browser Should have done this from day 1 And would have been hard sell then too From: -REDACTED- Sent: Monday, October 14, 2013 10:51 AM To: Lunarest Subject: ads in Luna This awesome ad popped up in my workspace last week. Not sure if this issue has anything to do with whatever s causing the white bar at the bottom of the screen. Wrong: A hostile environment for your tools Wrong: A hostile environment for your tools Malware Wrong: A hostile environment for your tools Malware Rampant extensions, addons and random junk AdBlock added 30 ms of latency for each outgoing AJAX request When you have 1000s of them, it starts to really suck Wrong: A hostile environment for your tools Malware Rampant extensions, addons and random junk AdBlock added 30 ms of latency for each outgoing AJAX request When you have 1000s of them, it starts to really suck Themes Wrong: Culture Shock Wrong: Culture Shock JS and web stack is very different from engine dev Deep specialization inevitable and necessary to do the job Wrong: Culture Shock JS and web stack is very different from engine dev Deep specialization inevitable and necessary to do the job Started to see cracks in the team culture At road s end (2015) At road s end (2015) Dev time for features snowballed Frustrated at lack of progress Lots of bugs were outside our control Maintenance costs killing productivity At road s end (2015) Dev time for features snowballed Frustrated at lack of progress Lots of bugs were outside our control Maintenance costs killing productivity Had lost 2 of our JS specialists At road s end (2015) Dev time for features snowballed Frustrated at lack of progress Lots of bugs were outside our control Maintenance costs killing productivity Had lost 2 of our JS specialists Team tension was mounting We needed a new direction Our current tools direction (2016-) Our current tools direction (2016-) Client layer in C++, with Qt for UI Right cultural choice for us Go back to mature dev tools, pipelines Our current tools direction (2016-) Client layer in C++, with Qt for UI Right cultural choice for us Go back to mature dev tools, pipelines Keep what works! Edit loop, server infrastructure enables gradual transition Our current tools direction (2016-) Client layer in C++, with Qt for UI Keep what works! Right cultural choice for us Go back to mature dev tools, pipelines Edit loop, server infrastructure enables gradual transition 9 months to get complete level editor beta up Included rewriting all JS infrastructure in C++ 2016 Surprises 2016 Surprises Maintenance cost went way down as we stopped JS dev Breakage in production proportional to # of JS changes 2016 Surprises Maintenance cost went way down as we stopped JS dev Breakage in production proportional to # of JS changes Still firefighting things outside our control Auto-updates: gift that keeps on giving Flash update broke all node graphs over night About a week of engineering effort to drop everything and fix How could you make it work? How could you make it work? Embedded browser engine No auto-updates, add-ins and other craziness No more clear cache How could you make it work? Embedded browser engine No auto-updates, add-ins and other craziness No more clear cache Use TypeScript exclusively How could you make it work? Embedded browser engine No auto-updates, add-ins and other craziness No more clear cache Use TypeScript exclusively Settle on small number of technologies Use them consistently even if they re not the latest web craze How could you make it work? Embedded browser engine Use TypeScript exclusively Settle on small number of technologies No auto-updates, add-ins and other craziness No more clear cache Use them consistently even if they re not the latest web craze Be conscious of specialization and team culture Vision post-mortem: Hiring Vision post-mortem: Hiring We put the word out, and people know about our web tools.. Vision post-mortem: Hiring We put the word out, and people know about our web tools.. ..but no web specialists applied Vision post-mortem: Hiring We put the word out, and people know about our web tools.. ..but no web specialists applied Even if they had applied, would we have hired them? We need generalists on the Core team Vision post-mortem: Lower the UI barrier Vision post-mortem: Lower the UI barrier We found that web apps of this magnitude raise the barrier Extra context switching: JavaScript, client-server, DOM, HTML Takes months to learn all the intricacies of the tech stack Vision post-mortem: Lower the UI barrier We found that web apps of this magnitude raise the barrier Extra context switching: JavaScript, client-server, DOM, HTML Takes months to learn all the intricacies of the tech stack It s no better than a traditional desktop GUI dev At least not for apps this size You can totally make a throwaway log viewer in 10 minutes But no one wants that thing in production Conclusion Conclusion No regrets 6 games shipped speak for themselves Conclusion No regrets 6 games shipped speak for themselves Our engine team is very versatile but why stretch it? Conclusion No regrets 6 games shipped speak for themselves Our engine team is very versatile but why stretch it? Probably wouldn't have done this if we knew the real costs First explorer gets to discover all the traps Conclusion No regrets 6 games shipped speak for themselves Our engine team is very versatile but why stretch it? Probably wouldn't have done this if we knew the real costs First explorer gets to discover all the traps It could have been a lot smoother if we prepared better Conclusion No regrets 6 games shipped speak for themselves Our engine team is very versatile but why stretch it? Probably wouldn't have done this if we knew the real costs First explorer gets to discover all the traps It could have been a lot smoother if we prepared better Zero install remains an attractive goal Can probably get close with native tools too though Thanks Q & A [email protected] @deplinenoise on twitter

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