lizrad / recursio

recursio

Recursio is a top down 1 vs. 1 twin stick shooter where each player tries to capture two points at the same time. To achieve this, each player spawns an afterimage of themselves after each round. This afterimage replays what the player did in the previous round. That way, the player has to cooperate with their previous self to capture both points.

Download

Download the latest client release here.

Play on Hosted Server

Play Online takes you to the official development server. Note that it might restart occasionally. If you lose connection to the server just try again after a few moments. Alternatively, you can host a server yourself and enter its IP in the Play Local option.

Controls

          DASH                                  FIRE
         _=====_                               _=====_
   SWAP / _____ \                             / _____ \ MELEE
      +.-'_____'-.---------------------------.-'_____'-.+
     /   |     |  '.                       .'  |  _  |   \
    / ___| /|\ |___ \                     / ___| /_\ |___ \
   / |      |      | ;  __           _   ; | _         _ | ;
   | | <---   ---> | | |__|         |_:> | ||_|       (_)| |
   | |___   |   ___| ;                   ; |___       ___| ;
   |\    | \|/ |    /  _     ___      _   \    |READY|    /|
   | \   |_____|  .','" "', |___|  ,'" "', '.  |_____|  .' |
   |  '-.______.-' /       \      /       \  '-._____.-'   |
   |               |  MOVE |------| LOOK  |                |
   |              /\       /      \       /\               |
   |             /  '.___.'        '.___.'  \              |
   |            /                            \             |
    \          /                              \           /
     \________/                                \_________/

Alternatively mouse and keyboard controls are available as well:

• WASD -> Move
• Mouse -> Aim
• LMB -> Fire
• RMB -> Melee
• Space -> Dash
• Tab -> Swap

Development Setup

Clone repository including symlinks for addons and shared files

git clone -c core.symlinks=true https://github.com/lizrad/recursio.git

recursio's Issues

Implement gameplay loop

Should be mostly driven by server.

Create some kind of config file for important settings

Because right now we have to define lots of stuff on the client as well as on the server. Would be very helpful if both could just read from the same file.

Game-Phase end very long

After the game-phase ends, there is a long delay

Menu music

Add sound for robot movement

(depends on #2 since it should fit the design of the robot)

Implement point capture UI

Mockup title screen

Implement extrapolation

Client sends dash_state 0 a long time after dash has actually ended.

Add sound for placing wall

Charge-up and "thunk" for placement

Implement player rotation

Implement result screen

Character design for hologram

Design environment

Implement rewind system

This should happen client side only, as precision and actual truth data is unnecessary.

This is on hold, because we probably don't need/want it.

Implement title screen

Design tutorial

very simple 1-minute single player scenario where you learn the basics of the time loop mechanic and what differentiates robots from players

Design level

Implement robot index UI

Mockup in-game UI

Mockup result screen

Add sound for shooting hitscan weapon

Implement level logic

Needs to manage:

• Capture Points
• Preparea
• Spawnpoints
• Synchronization with Server

Implement interpolation

Implement dash UI

Dash is sometimes slightly corrected (rubber-banded back)

does not seem to be related to latency as first suspected, I've tested 0ms, 50ms, and 100ms.

it's really inconsistent - weirdly I can reproduce it most reliably with a medium-strength dash towards the top right, especially when stopping right after dashing...

Implement wall placement weapon

Implement dumb capture point object

Just client side visual indicator. Real validation must happen on server.

Implement room screen

Implement melee attack

linked to #10

Implement weapon system

Allow for agnostic control of different weapon types.

Character design for robot

Add shadow / visibility shading

https://gdquest.mavenseed.com/lessons/limited-player-vision-with-lights (only applicable to 2D... we'll have to do it similarly to the previous project)

the map should be visible all the time (just a bit darker), but enemies are completely invisible unless they're in the player's visibility cone.

Model robot character

Prototype

• Prototype Model
• Procedural Animation
  • Aim
  • Dash
  • Move
  • Melee
  • Death
  • Spawn
• Final Model

Gameplay music

multiple layers that are added each round

Quit match if one of the player seems to have disconnected

(later, we could allow pausing and re-joining)

Implement basic top-down character movement

• support keyboard or controller
• nice acceleration / deceleration

Implement Character Dash

can probably just be taken from the prototype, but with more complicated cooldown: two "slots" that can be used up consecutively, and they recharge slowly

Add automatic deployment via GitHub Action

a GitHub Action should create builds, which my server can fetch and run via a cron job

Implement ammunition UI

Implement minimap UI

Implement gun type weapon

Add sound for hologram (active player) movement

maybe a slight swooshing with glitchy footsteps

Implement server access singleton

Implement timer UI

Add sound for round begin

countdown and "start"

Mockup room screen

Implement Minimap

Model hologram character

Add sound for round end

Countdown and "end"

similar as #22