LD45-WorkingTitle

Our Ludum Dare 45 game jam entry. The theme...

Start with nothing

• Screenshots
• Description
• Controls
  • Ingame
  • Main Menu
• Downloads
• Data Directory
• Notes
  • Requires Vulkan support to run!
• Change-Log
  • Jam Versions
  • Post-Jam Versions
    • Change-Log v1.1.0
    • Change-Log v1.1.1
    • Change-Log v1.1.2
    • Change-Log v1.1.3
    • Change-Log v1.2.0
    • Change-Log v1.3.0
• Fonts Used
• Development
  • Credits
  • Tools Used
  • Compiling from source
  • Making levels
• License

Screenshots

Description

Experience a work in progress.

Play through the development process of a 2D platformer game, and watch your environment transform as you progress...

The further you get, the more features are added, including menacing enemies, destructive spikes, and adaptive music.

Controls

Ingame

Main Menu

Downloads

Download the build for your platform from itch.io. Supported platforms: Windows and Linux.

Data Directory

The game's data directory is where the savefile.json, and the panic.log (if an error should occur) files will be saved to. It's location depends on the platform:

Location is determined by the dirs crate's data_local_dir() function.

Notes

Requires Vulkan support to run!

If the game doesn't run, it's likely that you're missing Vulkan API support. Unless you're using a very old graphics card, updating your graphics drivers should fix the issue.

If you're on Linux, you may need to install an appropriate Vulkan driver package for your graphics card. For Intel graphics on Arch Linux (or arch-based distros), the package vulkan-intel did the trick for me.

Sorry about this inconvenience, I'm not sure how to circumvent this.

Change-Log

Jam Versions

Post-Jam Versions

Change-Log v1.1.0

• Change settings to be more low-gravity and feel more like space.
• Add a hover mechanic, where the player can hold down the jump button
  to slowly hover downwards for the space-y gravity sections.
  • #14 Add proper hover
• Add four proper levels, each for a different difficulty, from easy to absurd.
  Starts with the easy level and goes to the next difficulty when the level is beaten.
• Add savefile system.
  When you hit a checkpoint your progress is saved to a savefile,
  which is loaded when you start the game.
  • #17 Persistent savefile
• Add red-rectangle ("programmer art") sprites for enemies.
  • #11 Add no_sprite animations for enemies
• Adjust animations.
• Bug fixes.

Change-Log v1.1.1

• Add a player death counter, which is printed to the console at regular intervals.
• Improve performance from previous version.
• Bug fixes, level adjustments, settings tweaks.

Change-Log v1.1.2

• Update background image, less distracting.
• Level, textures, settings adjustments.

Change-Log v1.1.3

• Add indicators for when certain features are added (jump, low-gravity).
  • #16 Add Indicator object, which becomes visible when touched
  • #18 Add indicator animations
• Fix savefile issues.
• Add pause menu. Toggle with P or Escape.
  • #19 Pause menu
• Update levels.
• Add plants tiles.
• Add speedrun timer (kinda). Time is printed to the console.
  • #12 Speedrun timer
• Animation adjustments.
• Settings tweaks.

Change-Log v1.2.0

• Add main menu, where you can select the difficulty you want to play.
  Use keyboard or mouse to select a difficulty.
  Each difficulty has its own save.
  • #21 Difficulty select menu
  • #26 Select difficulty with keyboard in DifficultySelect menu
• Save best level clear times for each level.
  Display an in-game timer after the level has been beaten once if the timer is running.
  Display the best time for each level, in-game next to the running timer.
  • #23 Save best time to savefile
  • #28 Display timer in-game
  • #31 Display best time with timer
• Minor paused menu UI changes.
• Reset saved player deaths after beating a level.
  (Player deaths are only printed to the console.)
• The window can be resized by the user.
  It's recommended to keep it at a 1:1 size ratio (square window).
• Display a different "level complete" text for each level.
• Level changes.
• Tile spritesheets changes.

Change-Log v1.3.0

• Add dynamic tile animations; animations, that are triggered by the player or enemies.
  Used in grass/plant tiles, which play a swaying animation when the player collides with them.
  • #24 Dynamic tile animations
• Use savefile.json from the user's data directory.
  Also saves a panic.log file to the directory, in case a crash happens.
  See the Data Directory section.
  • #35 Use savefile from a user-space directory
• Add key bindings to start the selected difficulty with a new save for the level.
  Bindings as of v1.3.0: X, Delete
  See the Controls section.
  • #25 Delete save for difficulty from DifficultySelect menu
• Add arrow key bindings for player movement.
• Checkpoints now have fixed respawn positions.
  This means the player will always spawn in an ideal position,
  instead of somewhere in the air or even spawning inside a solid tile.
  • #22 Make player spawn on ground by checkpoints
• Display your best time for the selected level under the button text.
  • #29 Display best time in DifficultySelect state
• Rename level difficulties, as shown ingame.
  For development the old code names are still used.
  Code names to ingame names table:

  CODE NAME -> INGAME/DISPLAYED NAME
  VeryEasy  -> "Easy"
  Easy      -> "Normal"
  Normal    -> "Advanced"
  Hard      -> "Hard"
  Absurd    -> "Absurd"
  

• Add a new VeryEasy level (now called "Easy" ingame).
  Intended to showcase the game's features, without too much challenge.
  • #38 Add "Very Easy" difficulty button to the main menu
• Add difficulty descriptions to the main menu.
  A description of the selected level is shown on the right side of the main menu.
  • #37 Display a description of the selected level in DifficultySelect menu
• Lock levels. Unlock a locked level by beating its prior difficulty.
  Levels VeryEasy and Easy start unlocked, the others start locked.
  Add an alternative locked description for each locked level.
  • #40 Make harder difficulties unlockable by beating previous difficulties
• Level changes.
• UI changes.
• Show version number in the bottom-right corner of the main menu.
• Camera tries to scale to the window size.
• Print welcome message to stdout when the game starts.
• Add completion text. Beat the game to see it :)
• Fix multi-tile animations de-sync.
  • #41 Add always_loaded property to multi-tile animations in levels

Fonts Used

Used undefined-medium for the text at the end.

Development

Credits

Tools Used

• Rust, programming language
• Amethyst, engine
• Deathframe, framework
• Vim, code editor
• GitHub, git repository hosting
• Gimp, tile/background graphics
• Aseprite, sprite graphics
• FL Studio, music
• Tiled, level design
• Travis-CI, Windows/Linux executable building

Compiling from source

You need to have cargo installed (preferably rustup). Run cargo run --release to build and run the game with your default toolchain. To run the development build with some debug stuff enabled, run the provided bin/run script; you'll need the rust toolchain nightly-2019-08-13 installed for the development run script.

Making levels

We use Tiled to create levels. You'll need to install Tiled and Python. We use a custom Tiled export script, which requires Python. To use the custom export script, do the following:

• Enable the python plugin (Edit -> Preferences -> Plugins)
• create a new directory under ~/.tiled
mkdir -p ~/.tiled
• copy the export script tiled-export-script.py to the new directory
  cp tiled-export-script.py ~/.tiled/working-title-export.py
• restart Tiled

The export script should now appear in the drop-down menu when exporting a level in Tiled.

To use the level in-game, copy the exported .json level file to resources/levels/level.json, and copy all *.ron files to resources/spritesheets/, associated with the spritesheet .png files used. You can use any spritesheets, as long as the .png and .ron files are in the resources/spritesheets directory.

The file DESIGN.md describes all tile/object properties and object types you can use in Tiled, which have meaning in the game.

License

Licensed under the terms of the MIT license.