Play the Ludum Dare version of ‘Office Daydream’

What went well​

Shorter workdays​

We had the fortunate opportunity to get out of the city for a bit and take a vacation preceding the game jam. We wanted to take advantage of our time away from home, so we instituted regular work days (8 hours), rather than the 10-12 hour days we usually fall into the trap of doing . And surprise, it went great! Everyone was more relaxed, and we delivered a quality game in less time! It was easier for the team to focus on getting stuff done. We also managed to finish early, just ahead of the submission hour.

Art pipeline​

We did most of our work in Aseprite, with a little bit of Photoshop thrown in. A lot of the art in this game is simple shapes, and we recycled many of the backgrounds across the mini-games.

Brainstorming​

The theme was announced at 8:00 pm in our time zone. We spent the evening hours brainstorming, picking a few to develop a little more, and then deciding on our favorite choice.

Scope pruning​

We were ruthless at eliminating extras that tried to sneak in to the game. We had less time than we usually do, so we had to work efficiently. The resulting game is about half of the scope it had the potential to become, and we kept it under control.

What could have gone better​

We had to spend some extra time ahead of the jam updating our game template and tools. We could have done this at any earlier point. It wasn’t too bad, but it did cut a bit into our relaxation time for the days preceding the jam.

We also struggled again with managing state in Excalibur. We’re working on incorporating this into the Excalibur engine to improve the development process.

Overall, this Ludum Dare went great. We look forward to playing all of the cool games that we’ve seen so far for LD41!

Five years in review​

The first commit to Excalibur.js was published on January 5th, 2013. Since then, we’ve been working to build a game engine that’s easy to develop with and fun to use. Along the way, we put together a release pipeline, constructed a test suite, wrote a lot of documentation, and created a number of extensions and samples. Here’s a quick rundown of some of the numbers:

• 103068 npm downloads
• 1275 commits to core repository
• 447 closed issues
• 35 contributors
• 17 releases

Future plans​

There are some pretty big improvements coming up, and we’re looking forward to sharing those changes with you over the next year. We’re also working on a larger collection of samples and games to help new developers and showcase Excalibur’s capabilities. For a more detailed look, check out the roadmap.

Thank you​

We want to extend our sincere thanks to everyone who has written code, opened an issue, posted in our forum, or made a game and let us know about it. This is a very fulfilling project, and seeing others contribute to and use Excalibur means a lot to us. Thanks for your support!

-The Excalibur.js team

Play the LD version of ‘I Just Wanted Groceries’

This is our fifth time back for Ludum Dare. We had a full house again, and the experience was a lot of fun!

What went well​

Preparation​

In the few days before Ludum Dare, we made sure everything was ready. We set up version control, automatic deploys, and scripted tasks to help us build and develop the game. We ran into some problems during this setup, which is exactly why we do this early. These steps have become necessary for us before every game jam.

Brainstorming​

The theme was announced at 8:00 P.M. our time, and we spent the entire rest of the evening brainstorming. We made sure not to settle on anything too quickly, and came up with as many ideas as possible. From those fifty or so possibilities we picked a handful that seemed interesting enough to build. An hour or two later, we’d thrown all but one of those out, and settled on “avoid talking to people someplace – grocery store”.

Prototyping​

We built the first version of the game level on a dry erase board. This let us iterate on how a player would traverse it, as well as devise methods for pathfinding and item generation. Every time we’ve taken the time to do this step, we saved ourselves a load of heartache. Clearing up design issues is much simpler before the code has been written.

Art​

We had three team members working on art at different points in the weekend. We built the level, the characters, and the food items from scratch. It can be difficult to maintain a visual consistency when multiple people are drawing things; we mitigated a portion of this by standardizing on the “x11” palette built in to Aseprite, so at least all of our colors matched.

Sound​

We didn’t make our own music this time, but we did design most of the sound effects using littleBits and a guitar. We feel like we did a good job of unifying the soundscape and setting a cohesive mood with the audio.

Simple construction​

One of the most useful things we do is enforce the restriction of building a “playable” game as soon as possible. It doesn’t need any fancy extras, it just needs to let the player interact with and experience it. We managed to get to that point by Sunday morning, which left us two full days to add all those cool extras. It also allowed us to play the game a lot and polish the rough edges.

Recycled code​

We started our game with a Yeoman template we built to structure the basics for us. We also reused a number of code snippets that we had left over from other games, including animation code and player input logic. Every little bit of time we saved helped us build this game better than we could have otherwise.

Excalibur​

We hardly encountered any actual bugs in Excalibur this time around. We did put together a long list of potential improvements, though, and look forward to incorporating those into the engine.

Using Tiled​

If you’re making a tile or grid-based game, Tiled is a great editor to build your levels in. We used it to define zones for our different grocery items to spawn in, as well as waypoints to define the shoppers’ movements.

Custom analytics​

We’ve tracked analytics in our games before, but we wanted a little more granularity this time. We configured custom analytics with Azure functions, and were able to track whatever game properties we wanted.

Eating and sleeping​

We ended each day after about 10:00 P.M. Ending early meant we could start early, and sleep is the best medicine for tired minds. We also cooked several meals instead of just getting fast food all the time. These two things were marked improvements from previous game jams.

Results​

Our results were pretty good! We scored highest in humor and fun, which was what we were aiming for. We’re glad people liked the game.

What didn’t go so well​

Tiled plugin​

We experienced a small complication with our custom Tiled plugin, due to a versioning issue with Excalibur. It wasn’t too difficult to fix, but it did slow us down a bit.

Bugs in Excalibur​

While the bug count this jam was low, it still wasn’t zero. One day, perhaps, but not this time. If anything, it’s better we run into these things before other users do, in order to prevent frustration with the development experience.

Difficulty in pathfinding​

It was a bit difficult to get exactly what we were looking for in so short a time span. We managed to achieve most of the desired results, but there are still a few rough edges. We’ll be looking at adding pathfinding support directly into Excalibur in the future.

Conclusion​

Every time we do a restrospective, the “what went well” section takes more and more space away from the “what didn’t go so well” section. It’s really encouraging to see this become a more interesting and rewarding process as we make new games. Ludum Dare was a lot of fun, and we hope to participate again someday.

Thanks for reading!

Excalibur version 0.8.0 is now available! We have several new features in this release.

Fast body collision checking​

Actors can now move much faster without fear of unexpectedly passing through other collision bodies.

New vector and line functionality​

We’ve added a few helpful things to Line and Vector, including determining points, calculating distance, and a vector magnitude alias.

Debug statistics​

We now have a utility from which Excalibur will provide useful statistics to help you debug your game. For now the stats are focused on Actors and specific frames; look for more helpful stats in future releases!

PhantomJS testing structure

Behind the scenes, we have new testing tools that will allow us to visually test complicated interactions on the canvas.

There were quite a few commits from the Excalibur community in this release. Thanks to FerociousQuasar and hogart for your contributions, and check out the full release notes for all of the details for this release.

Excalibur version 0.7.0 is now available! This is a very exciting milestone, as we have added a major feature!

New physics system​

We’ve implemented a rigid-body physics system, complete with edges, circles, and convex polygon primitives. This enables you to build fully-featured physics games in Excalibur! Fear not, the old physics system is still around for you to use.

Generic lerping and easing​

Excalibur now has generic functions for lerping and easing!

Code cleanup​

We’ve removed a number of deprecated methods. Check the changelog for a complete list.

Contributing​

We have improved our contributing document to make it easier to jump into Excalibur development. If you’re interested in helping out, read through our new Contributing documentation

Overall there were over 27 issues addressed in this release. Check out the full release notes for all of the details, including bug fixes and enhancements.

Ludum Dare 35 is the fourth in the series for the Excalibur.js team. We piled five to seven people into one room for four days to make another game.

What went well​

Workflow and toolset​

We’ve continued to refine and improve the way we build games for jams. It’s important that everything “just works” as much as possible. We maintained the same continuous deployment process that we’ve used before to push to a live site, so it could be tested and played within a minute of being checked in. We also used a watch-and-compile task in Visual Studio Code to gain the same benefit while developing locally.

Art & sound​

We had four people putting together art assets on and off throughout the weekend, and it turned out great. We used bfxr to create the sound effects, and a set of littleBits components to compose the background music. Once we had settled on the theming for the game, everything fell into place.

Event scripting​

We initially had a grand plan for introducing elements of Hexshaper, and as usual we had to set that aside and come up with a more practical solution that could be completed in the time remaining. We ended up pausing the game and moving the camera over to each portal as it opened and as the player successfully closed it, which ended up providing most of what we wanted.

Bugs​

We only encountered a few bugs in Excalibur this time around, and they were all relatively straightforward to test and fix. It feels better to use the engine each time we do a game jam.

What didn’t go so well​

Minimum viable game​

We didn’t have a very clear vision of what we wanted the game to be this time around. Uncertainty translated into not really having a playable game until Monday. This delay was a stark departure from the last couple of games we’ve made, where we made a point to have something relatively complete by Saturday evening so we could iterate on it through the rest of the weekend.

Animations​

There were a number of things that made interacting with the Excalibur animations API painful. Luckily, we didn’t lose too much time to them, and we now have an opportunity to improve that experience for future users.

Conclusions​

• Build a playable game as soon as possible
• Look for alternative solutions that create most of what you want for much less work

Special thanks to all of the people who worked hard to make this game possible!

We’ve been steadily working on the newest release of ExcaliburJS, and it’s finally here! Version 0.5.0 brings with it many new features!

Controller support​

Excalibur now supports the HTML5 Gamepad API. Most modern controllers can be used as game input.

Z-indexing​

You can now specify layering for actors in your game. Higher index values draw on top of lower values.

Faster collision detection​

Excalibur now uses an axis aligned bounding box tree for better performance during collision checks.

New documentation​

The Excalibur docs are now cleaner and easier to navigate. Use the search bar at the top to help you find what you’re looking for.

There are also a number of improvements and bug fixes to make Excalibur faster and easier to use. If you’re so inclined, check out the full release notes.

Releases are also available in Bower and NuGet; please reference the installation guide for more information. If you’re brand new, welcome! Check out the Getting Started guide to start working with Excalibur.

The main Excalibur branch is constantly being improved by the team. If you crave living on the edge, reference the edge documentation to keep up with what we’re working on. It is automatically updated with every commit.

If you’ve used Excalibur for a project, please send it our way so we can consider showcasing it on the website!

Play the Ludum Dare version of Sweep Stacks

This game jam was the second Ludum Dare we've participated in. Our goal with Sweep Stacks was to build something fun and see how well we could work with a larger team (five people instead of the usual three).

What went well​

Preparation​

Given the problems we had last time with setup, we made sure that everyone prepared their development environments ahead of time, and brought over their computer equipment to set it up the day before. We also configured continuous deployment for our code using TravisCI and GitHub Pages. This ensured that every time we pushed a change to the game, it would update on the website and we could see that the game was working properly.

Brainstorming​

We came up with a number of ideas for this jam, several of which everyone seemed to enjoy. Even after we had those concepts moderately well-formed, we kept trying to come up with more ideas. After we’d exhausted our collective creative capacities, we made sure everyone was on the same page and went forward with the idea we all liked the most. We used Trello for new ideas or issues that we encountered; it was incredibly helpful to organize everything, and we highly recommend it for game jams.

Scope​

We made a concerted effort to keep the scope of this game small. The theme definitely helped with that as well. Once we had the initial mechanics drafted for matching and piece movement, we realized that we could actually do a physical prototype. We pulled out some poker chips and a checkers board, and played the game for a while. This was immensely helpful for quickly visualizing exactly how the game would work, and allowed us to check for potential problems without having to write any code. By keeping the scope small, the game was playable very early on in development, which allowed us a lot of time to tune the gameplay.

Testing​

One of our team members, Sean, offered himself up to be our dedicated game tester for the weekend, and it was absolutely phenomenal how much it helped the development process. Coupling this with our continuous deployment meant that we encountered bugs or potential issues very quickly, and could either remedy or improve upon them easily. We also made a number of features easily configurable so we could test different board sizes, block distributions, and other changes.

Art & sound​

Another team member, Alan, brought over his guitar, so we decided to try and use it for sound effects and music. After about an hour or so, we had the music and notes that you can hear in the game. They turned out great, and really added a lot to the atmosphere we were trying to create.

Earlier on during the weekend, we had tossed around the idea of a fantasy theme for the game. In the end, we decided on a simpler art style, which ended up looking really good, and helped us focus a bit more on the gameplay rather than on designing or incorporating more complicated assets.

Timelapse​

We recorded timelapses on our computers while we worked, and also had a camera running on the room we were all working in. It was fun going back through the pictures and watching the game develop. We’re putting together a video or two of the process, but here’s a short teaser for now:

What didn't go so well​

Analytics​

We used Google Analytics to keep track of scores and a few other stats. However, due to a limit on how many events you can send (one event per second after the first ten events), we can’t properly record all of the events if a user plays more than one game. Next time we’ll try a different analytics provider, or consider our own solution.

Hosting​

Github Pages went down for some unplanned maintenance a few days after Ludum Dare was over. We didn’t have a fallback hosting solution set up, which meant that there was a fair amount of time where people simply couldn’t play the game. We now have an alert set up for our current hosting and a fallback site on Microsoft Azure ready to deploy if anything goes wrong.

Bugs​

Excalibur was much more stable this time around, although we did encounter a few platform-specific issues for iOS and Windows Phone that we could have been aware of sooner if we’d playtested the game on those devices.

Color palette​

Our final color palette ended up being very unfriendly towards color blind players. We’re currently working on different color selections for color blind modes, and we are definitely going to consider accessibility in our initial design decisions from now on.

Future plans​

There has been a fair amount of interest in Sweep Stacks so far, and we've definitely had a lot of fun working on it, so we plan on continuing to develop and improve it further. You can play the most recent stable version of the game at playsweepstacks.com.

Conclusions​

• Create the smallest game you can make, then build on it from there
• As soon as your game is playable, have someone play it
• Have fun!

Ludum Dare 31 was an absolute delight, and we hope to be back again someday!

It’s taken a while to get around to composing this from the notes we scribbled down after the jam, but here we go!

What went well​

Teamwork​

Overall, our team worked really well together, given that this was our first “high-stakes” deadlined project. Being able to work in the same physical space was a big part of our productivity over the weekend, and we were able to help each other with problems or changes quickly and effectively.

Planning​

We felt it was important to spend an appropriate amount of time discussing ideas before we settled on making anything. This turned out to be several hours. We took a walk around the neighborhood and brainstormed ideas that would fit within the theme, eventually settling on a much more elaborate version of what would become our game.

Sleeping & eating​

While Ludum Dare takes place within a limited time frame, we had no intention of staying awake for the entire duration. Overwork and sleep deprivation leads to inefficiency. We also made sure that we remembered to eat food at regular, human intervals. This helped maintain a positive mood and keep us from consuming each other and/or the neighbors.

Map editor​

We decided to use Tiled to create our map. We spent a bit of time getting it to integrate with Excalibur, but being able to graphically edit everything in the level on the fly was definitely worth it.

Art & effects​

Overall, our art process went better than expected. We leveraged an existing tileset for our geography and map background. We put together the ship and kraken sprites ourselves with Photoshop and Paint.net, and they turned out well with relatively few frames of animation. We used color blending to darken up the map, which really helped set the mood of the game. The ship spotlights were created using a radial gradient effect, which was pretty simple to do and looked great. Additionally, we added a little bit of camera shake into the game when the kraken attacks ships. This was easily the best payoff for the least amount of code.

Stats​

The end-game score screen was a last-minute alternative to a boss fight that we cut from our scope. It ended up adding a good deal of replay value to the game, and encouraged players to come back and try to beat their previous score. We also hooked the game up to Google Analytics, which we think everyone should look into doing if they can. It helped give some insight into how people were playing the game, as well as give us an idea of how difficult the level was.

TypeScript​

If you’re developing a game using JavaScript, we recommend giving Typescript a try. Static typing really helped us during the rapid game-building process of Ludum Dare.

Testing Excalibur​

One of the main goals we had in mind for this jam was to put our game engine through its paces. We were able to push the limits of Excalibur and find a number of opportunities for improvement. The more we do game jams like this, the more filled-out the engine should become.

What didn't go so well​

Also testing Excalibur​

On the same hand, we encountered several critical issues that halted game development for several hours each. Excalibur, still in early alpha, didn’t fully support a lot of the features we tried to use it for. While this was expected, we spent a lot of time fixing bugs and adding features to the engine instead of working on the game. Next time, we plan on prioritizing quick workarounds when we’re in a time crunch.

Deadlines​

We often didn't stick to our self-imposed deadlines. For example, we had planned on halting development several hours before the submission time, but we ended up working until fifteen minutes prior to the end of the jam. In the future, we definitely need to timebox better and set more realistic goals around task completion.

Playtesting​

As a result of ignoring all of our deadlines, we hardly did any playtesting of the full level. While this luckily wasn’t a huge issue in the end, it had the potential to be absolutely disastrous.

Game controls​

The game ended up with slightly unintuitive player controls. The kraken followed the player’s mouse pointer, but we required you to press the spacebar to attack; we should have just used mouse clicks for attacking the ships. We also only played the attacking animation when the kraken was within range of a ship; while this contextual logic was a cool idea initially, it ended up being confusing for players. In addition, the kraken would spin wildly on occasion when attacking ships, which we affectionately referred to as “Spinning Squid Syndrome”. While this rotation was somewhat intentional (it was a workaround to avoid doing a lot more sprite animation), it definitely needed some fine tuning.

Another surprise for us was that many of the players we talked to were much more interested in sneaking around the ships than attacking them. We didn’t really reward this in the ending score screen, as we had always assumed everyone would want to attack the ships.

Tools & process​

We encountered a problem with deploying the game to Github Pages. With very little time left until submission, we all vaguely thought we were doomed. Luckily, we were able to deploy straight from Visual Studio with Azure publishing, which allowed us to move forward!

Improvements for next time​

Know the tools​

We had never really used Tiled before, and while it was definitely helpful, it took some getting used to. Next time, we’ll use all of our development tools beforehand to gain some familiarity with them.

Test the process​

In the same vein, we should have tested the entire development process on a small scale, end to end. We could have set up the code repository, ran through a sample game to test the workflow, and deployed it to make sure the entire pipeline worked before the jam started.

Work around issues with Excalibur​

While discovering issues with our game engine is an important goal for us, it shouldn’t get in the way of finishing the game. The next time we encounter a show-stopping engine bug, we’ll consider changing the mechanics or creating a simple workaround rather than dropping everything to fix it. For example, we spent hours smoothing ship rotations, when we could have just had them snap to their new travel direction.

Define the scope more clearly​

While we did a pretty good job of cutting features and scope from the project as we went along, it would have been better to cut those things earlier; there were several things (boss battles, different enemy types, etc.) that we still planned on implementing even when we didn’t really have any time to do so.

Add more stats​

We plan on adding even more stats and analytics from now on. We could have kept track of player pathing information to see if there were any problems with the level design, or gotten more insight into the play style choices that everyone was making.

Future plans​

We have been working a little bit in our free time to clean up the game code and add more features. It would be really cool to add more of our original scope back into the game now that we’re not under any time constraints. You can take a look at the latest branch of the repository to see how we’re doing.

Conclusions​

• Teamwork is key
• Your scope is too damn big
• Prepare your tools
• Have an idea of where you’re going before you start

Overall, Ludum Dare 29 was an amazing experience, and we will definitely be back for another one sometime in the future.

We are very proud to announce Excalibur v0.2.0! There are tons of awesome new features!

Check out the full release notes on GitHub!

Release notes summary​

• Collision Map Implementation for building large static collidable levels
• Support for redundant fallback sound sources for cross browser support
• Particle Emitter Implementation
• Trigger Implementation
• Timer Implemenation
• Camera Effects: zoom, shake
• Polygon IDrawable
• Alias ‘on’ and 'off’ for 'addEventListener’ and 'removeEventListener’
• Optimized draw so only on screen elements are drawn
• Support Scale in the x and y directions for actors
• Added notion of collision grouping
• New Events like 'enterviewport’, 'exitviewport’, and 'initialize’
• Textures allow direct pixel manipulation
• Static Logger improvements with ’.debug()’, ’.info()’, ’.warn()’ and ’.error()’
• Added callMethod() action to actor
• Added fade() action to actor
• Added follow() and meet() action to actor

Installation options​

• Install with NugGet: Install-Package Excalibur
• Install with npm: npm install excalibur
• Install with bower: bower install excalibur