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      Game Development — pc gaming

      Little Medusa's Multiplayer Roster

      Little Medusa's Multiplayer Roster

      Hello there to all the stone pushers! We know you’ve been waiting for an update on Little Medusa’s multiplayer mode, and today, we’re finally allowed to spill some details on how our take on the battle royale formula is shaping up!


      So how would the game play out? We’re happy to report that we feel like we’ve successfully translated Little Medusa’s core gameplay mechanics and transformed it into a multiplayer experience that would be easy to learn for all kinds of players (while still providing enough wiggle room to show off a skilled player’s mastery over the game’s unique mechanics). Each player will still be trying to utilize the pushing mechanics of the single-player mode to eliminate the other players and be the one to come out on top.


      There are also quite a number of settings that you can adjust to fully customize your playing experience. You can toy with the number of lives that each player starts with, the amount of time that you have to duke it out, one-hit kills, item spawns, and even enemy spawns. No matter how you adjust your options, the end goal remains the same: be the last one standing!

       

       

      As for the specifics, we’ll slowly be rolling out details for the twelve maps and the myriad of items and enemies. For now, let’s give you some specifics on the five playable characters, with each character having two different attacks! Of course, we can’t have a character roster for Little Medusa without the titular character herself: Medusa plays pretty much the same way she does in the main game. She can petrify enemies with her Petrification Gaze. Petrified enemies can be pushed into walls for damage or pushed off of the level. Her other attack, Boulder, creates a boulder that blocks movement and also acts as a wall. These two attacks can be combined in clever ways, allowing Medusa players to create a boulder to smash petrified enemies.

       

       

      Our next two characters are Poseidonna and Heliemis. Poseidonna can create waves that push everything in their path off of the level with her Tidal Wave attack. She can also create a small bubble in one adjacent space to push enemies with her Bubble Shield. Both of her attacks don’t do any damage, but her insane pushing power makes her a force to be reckoned with. On the other hand, Heliemis’ Mighty Wind attack creates a gust that travels up to three spaces away and deals damage. The Tornado Pull attack creates a tornado that lasts for five seconds, pulling enemies in if they go near it. This allows for some wicked setups to trap an enemy in a tornado while blasting them with Mighty Wind.

       

       

      Our last two characters, Ermolai and Averna, round up the elemental quartet. Ermolai is the earth dude, and he’s all about creating holes in the ground. Pitfall doesn’t do damage but instead creates a hole in the ground. While this may seem underwhelming at first, if you manage to put a hole underneath your opponents, they instantly lose a life! His other ability, Earthquake, creates four holes around a 2x2 area, but it does resolve slower, so it’s trickier to make enemies fall off of it. It’s a good thing that it does damage! We’re only missing the fiery member of our group, and that’s Averna. She’s probably the simplest character in the game, but also the most damage-heavy. Both of her abilities will deal damage, with Fireball being a simple projectile that will deal damage upon contact and will deal additional AOE damage around it. Flame Pillar also does damage, but travels slower and has a lower overall distance, but utilizing both of her abilities can allow Averna players to take control of the battlefield.

       

       

      For now, we’re still at the balancing stages of the game, so we’re still checking out the numbers on these characters, but for the most part, these attacks are pretty much ready to roll. We want all five of them to be playable in some amount instead of any single one of them to dominate the playing field. We’ll definitely be telling you more about the other aspects of the game in the future, though, so stay tuned to our social media channels for further updates! You can also head on over to Mega Cat Studios for more retro gaming goodness.

      Coffee Crisis Chroma Integration: A Behind-the-Scenes Look

      Coffee Crisis Chroma Integration: A Behind-the-Scenes Look

      Table of Contents

      1. Introduction 3
      2. Overview of Chroma Integration in Coffee Crisis 4
      3. Installing Razer Synapse for development 11
      4. Installing UnityChroma(Native) SDKs 12
      5. Creating animations 13
      6. Testing on real/emulated hardware 18
      7. Behind the scenes look 19

      1. Introduction

      We, Mega Cat Studios, have recently wrapped up development on Coffee Crisis, a multiplatform 2D Beat'em Up game for Sega Genesis, PC, and Xbox One! One of the features exclusive to the PC port that we implemented into Coffee Crisis was Chroma support. Chroma is a unique, proprietary, next-generation technology that Razer implements into its product line of high-end gaming equipment, which allows dynamic lighting on its equipment. Products created by Razer which implement their top-of-the-line Chroma technology include their keyboards, mice, mousepads, computer cases, and much more. Using the Chroma SDK, developers can integrate Chroma support into their games and applications, and configure the lighting on Razer's Chroma-enabled products. Such examples of Chroma integration include making the products light up as a VU meter in multimedia applications, encoding gameplay information on products, and even attempting to show images on the device by approximately color mapping colors in images to certain buttons/keys on the device.

      Coffee Crisis is a neo-rogue brawler that puts you in the shoes of the only baristas on Earth with enough heavy metal in their veins to fend off an alien assault. Play solo or join up with a friend to fight across eight unique locations ranging from your Coffee House HQ to the far reaches of outer space. Go up against an army of wild alien enemies, and the humans they have brainwashed with a variety of weapons, special moves, suplexes, and coffee!

      The Smurglian race has come to Earth and they're not leaving until they steal our three most prized commodities: heavy metal, free WiFi, and our coffee. Crunch through fistfuls of alien meat as you stop their invasion, and enjoy random modifiers to the enemies and action on each playthrough. It's a unique cup of beat 'em up action every time you play!

       

      1. Overview of Chroma Integration in Coffee Crisis

      As part of our feature set of Coffee Crisis, we implemented Chroma integration into our game. The game was created for PC/Xbox One using Unity3D, a closed-source but critically acclaimed video game engine created by Unity Technologies, applauded and used by Indie and professional game developers worldwide. To add Chroma integration into Coffee Crisis, we used the official Chroma and Chroma Native Unity3D SDKs. For our game, we utilized Chroma for showing colorific animations on the Blackwidow Chroma Keyboard in cutscenes and menus, and on encoding gameplay information. Specifically, we implemented the following:

      • Menus
        • Main Menu
          • Animating keyboard to depict the background animation

        • Credits
          • Displaying a static color image of the final cutscene's background

      • Cutscenes
        • Story cutscenes
          • Applying a 5-color, brown palette cycle of concentric squares on the keyboard

       

          • Death metal/mod mode intro cutscene
          • Displaying a static color image of cutscene's background

      • Game
        • Encoding various game information on the keyboard
        • Encoding a health bar on the top row FN keys
          • Keys
            • Keys F1-F12
            • Printscreen
            • Scroll Lock
            • Pause
          • Bar increases/decreases as health changes
          • Bar color tweens
            • From green (max health)
            • To red (low health)
        • Encoding the hit combo counter on the row of numeric keys
          • Number keys 0-9
          • Bar increases as hit combo increases
          • The bar becomes full and fully green after 20 hit combos
          • Bar color tweens
            • From red (low hit combo)
            • To green (high hit combo)
        • Encoding the hit combo cooldown timer on the first alphabetic row
          • Keys QWERTYUIOP
          • Bar decreases from full as cooldown timer decreases
          • Bar color tweens
            • From red (low amount of time left)
            • To green (high amount of time left)
        • Encoding the amount of time left on the invincibility and damage multiplier powerups
          • Feature only viewable on full-sized keyboards, not half-sized (Blade keyboards on Razer laptops)
          • The feature can be disabled by
            • Selecting the keyboard type in the options menu
              • Full-sized keyboards
              • Blade keyboard
            • This saves CPU cycles
          • Keys 0-9 on Numpad
          • Keys 1-9 color tween
            • From green (high amount of time left)
            • To red (low amount of time left)
          • Key 0 stays a particular color based on powerup type
            • Yellow for invincibility
            • Red for a Damage multiplier

        • Encoding modifier information
          • Features only available in mod modes (various options set in Options Menu)
            • Modifiers toggle set on
            • Twitch integration enabled
            • Mixer integration enabled
          • Keys M1-M5
          • During voting in a Finish Them Zone
            • Keys M1-M4
              • Encodes the number of votes for the mod category
              • Color tweens
                • From green (low amount of votes)
                • To red (high amount of votes)
                • Zero votes display black

            • Key M5
              • Encodes the total amount of votes during the vote session
              • Color tweens
                • From green (low amount of votes)
                • To red (high amount of votes)
                • Zero votes display black

          • After voting in a Finish Them Zone
            • Keys M1-M4
              • Encodes the number of modifiers in play for the mod category
              • Color tweens
                • From green (low amount of mods)
                • To red (high amount of mods)
                • Zero mods display black
              • Modifier amount ranges
                • Twitch/Mixer
                  • 0-2 mods
                • Not Twitch/Mixer, but modifiers on
                  • 0-5 mods
            • Key M5
              • Encodes the total amount of mods in play during the Finish Them Zone
              • Color tweens
                • From green (low amount of mods)
                • To red (high amount of time left)
                • Zero votes display black
        • Encoding pain/powerup pickup
          • Every time the player
            • Is hit
              • All other keys unused by other bullet points flash red
            • Picks up a powerup
              • All other keys unused by other bullet points flash yellow

      This guide will show aspiring Indie video game developers how to set up and use the Unity3D Chroma plugins for game development, as well as show an exclusive behind-the-scenes look on how we implemented the Chroma functionality in Coffee Crisis!

       

      1. Installing Razer Synapse for development

      Before you can even use a Blackwidow Chroma keyboard for development, you must plug it into your computer for the first time. It goes without saying, but Chroma development will only work for Chroma-enabled Blackwidow keyboards. Certain Blackwidow keyboards do not include Chroma support; please check your user's manual.

      Plugging in your Chroma Blackwidow keyboard

      Plug in your Chroma Blackwidow keyboard into your computer. Some Blackwidow keyboards have 2 USB cords; one as a piggyback cable, another for the keyboard. Make sure at a minimum to connect the USB cable labeled "Razer" and not "Port". After plugging in your Chroma Blackwidow keyboard, the keyboard's drivers should install from online, and it should light up. In order to control the lighting and handle it in code, you will next need to install Razer Synapse software.

      Installing Razer Synapse for development

      Razer Synapse is a piece of software created from Razer which will allow you to configure the Chroma lighting on your Chroma-enabled devices, as well as interface with the lighting with code (after we implement code and the Unity Chroma plugins).

      To begin, download and install Razer Synapse. At the time of this writing, the latest version is Razer Synapse 3 Beta, while the previous is Razer Synapse 2. Download and install either version (for this guide, we'll use Razer Synapse 3 Beta). After launching the installer, select which features you want to be installed, and where to install it. At a minimum, you will want to install Razer Synapse software and Chroma.

      1. Installing UnityChroma SDK

      Now that we have both Razer Synapse installed and the drivers installed with the Razer Chroma Keyboard (via plugging it in), it is time to set up our Unity project to interface with Chroma!

      In order for a Unity project to interface with Chroma devices, you will need to install the Unity3D Native and non-native plugins for Chroma SDK. You can find the native plugins here, and the non-native here. The former plugins are required for usage in compiled games (they interface with the hardware), while the latter plugins are used in the Editor only for creating Chroma animations. The latter ones should be removed for compiled builds, to reduce filesize bloat in the compiled builds. Please read the instructions from each download page on how to use the plugins and install them.

      1. Creating animations

      With the keyboard's drivers installed, Razer Synapse installed, and the Unity3D Razer plugins installed into your project, you should be good to go for developing with Chroma! Below are a few conceptual notes on how Chroma works in Unity. Full-details on how to use Chroma with Unity can be found in the tutorials on the pages where you downloaded the Unity3D Chroma plugins.

      Chroma color with the Unity3D plugins works in either one of 2 ways: via Chroma animations, or by manually updating the colors of keys on-the-fly. The former method will be discussed in this section, while the latter in the next section. Chroma animations should not be confused with Unity's animations. The latter is used for changing properties of a GameObject's components overtime via keyframes (especially sprites and image graphics), while the former is used for changing the colors of Chroma-enabled devices over time.

      Chroma animations are simply .chroma filetypes, stored in the StreamingAssets folder within the Assets folder in the root folder of the project. Unfortunately, Chroma devices are only supported on Windows machines, so when compiling the game for other platforms (Mac and Linux), you should remove the ChromaSDK plugins, UnityNativeChromaSDK plugins, and the StreamingAssets folder with the Chroma animations, since they will bloat up the build's filesize and are unused for those platforms.

      To create Chroma animation, go to GameObject>ChromaSDK>Create 1D/2D Animation. For Keyboard animations, we will want to use 2D Animations. The Chroma animations should be placed in your StreamingAssets folder.

      In order to edit Chroma animations, right-click the animation, and click ChromaSDK>Edit Chroma Animation. This will bring up a custom Chroma Editor in the Inspector.

      In the custom editor, you can select the device type ("Keyboard" for this tutorial), select key types from the keyboard, and assign colors to each key in each frame in the animation. You can also import an image to assign colors to each key (however, this feature seems to crash often). When modifying colors, the Chroma devices attached to the computer will update to display your color configuration.

      Alternatively, to individually assigning colors to each key, you can use the Chroma capture tools to map an image onto the various keys. To use these tools, Goto Windows>ChromaSDK>Open Chroma Particle Window. To learn how to use these capture windows, check out the tutorials here.

      Animation playback

      Now that we have our animations defined for the game, we will need to add code to playback our animation. Any Unity3D script that utilizes the native Chroma plugins will need this namespace added to the top of the script:

      #if UNITY_STANDALONE_WIN

      using ChromaSDK;

      #endif

       

      Furthermore, Chroma support is only supported in the Windows platform, so make sure to add #if UNITY_STANDALONE_WIN code blocks around Chroma code. Below is a quote from the API documentation here for the most important API functions for playback:

      1. Testing on real/emulated hardware

      Now that we have animations defined and code for playing the animations, you will want to test them on hardware. You can either test it as such on real hardware (by playing the game with the Chroma device connected) or with the Chroma Emulator. The Chroma emulator will simulate Chroma lighting for a variety of devices. At a bare minimum, you will need one real Chroma device setup first before it can be used. Usage should be straightforward.

      1. Behind the scenes look on Coffee Chroma Integration

      A limitation of the Unity Chroma setup is that animations are static; it doesn't really allow for combing several animations to encode data. When designing the in-game Chroma animation, we wanted to encode most of the game's information on the keyboard. Luckily, we were able to exploit a few things in the Unity Chroma set up as a workaround and allow dynamic key lighting. Coffee Crisis' in-game Chroma animation is simply a dummy Keyboard animation with no keys lit.

      We heavily utilize the SetKeysColorAllFramesName API function in order to manually update the keys in an Update() thread; however, there is a catch to this method. In order to edit an animation during runtime, you must do the following:

      • Close it first with CloseAnimationName
      • Manually change your keys' colors with SetKeysColorAllFramesName
      • Play dynamic animation back with PlayAnimationName

      This sequence of code events was what allowed us to pull off dynamic animations in-game. A problem with using an update() thread to update dynamic Chroma animation in such a fashion is that it may lag other people's machines. Different models of Chroma keyboards have higher fresh rates, and running such an update thread at full speed will severely lag other people's machines. As a workaround to this issue, we added a cooldown timer, to update dynamic Chroma animations every 250ms. Please see our truncated, relevant code attached, for a sample of how we set up dynamic Chroma animations to work.