Design

Since this is a top-down dungeon crawler, we need a grid-based map. It doesn’t require scrolling or any extent larger than the current screen (for now).

The tiles and walls will be the same size, something like 64x64.

Every 10 Seconds

To comply with the theme of this compo, we will implement the 10 seconds behavior like so:

• The target item position will be changed to a new random location, somewhere that is passable on the map (or a specifically marked item location). The position also must be some distance away from the player’s current position so that it isn’t inordinately easy to win.

Ideas

• Every time an item is picked up an enemy appears in the map
• Once you pick up a certain set of items an exit appears
• Set of items is different on each level

Development and Debugging

# To debug, run M-x gud-gdb with this command:
guix shell --pure -m manifest.scm -- gdb --args bin/dev/erratic-cavern

Tasks

Add item position randomization at the interval

• State “DONE” from “TODO” [2022-10-02 Sun 09:30]

• [X] Keep a list of all valid item locations
• [X] Pick a new position for each item (ideally unique position for each item)
• [X] Make sure we don’t pick the player position
• [X] Show a timer gauge at the bottom of the screen

Add configurable player start

• State “DONE” from “TODO” [2022-10-02 Sun 09:42]

Add patrols that have logic on step and also can be randomized at the interval

• State “DONE” from “TODO” [2022-10-02 Sun 14:35]

Implement a win and lose state (time limit)

• State “DONE” from “TODO” [2022-10-02 Sun 15:35]

• If you grab the goal item, you win!
• If an enemy or trap touches you, you lose!
• If the time runs out, you lose!

Implement unlockable doors with key pickups

• State “DONE” from “TODO” [2022-10-02 Sun 16:58]

Implement traps that can end the game (maybe be disabled with an item?)

Finish the first map

Add a mechanic to keep you from sitting still

Add raycasting for patrol vision

Add 2 more maps

Fix the issue with item removal on pickup

Integrate classes and generic methods?

Make the window show up centered when it opens

Emacs World Editor Config

(defun setup-erratic-world-highlighting ()
  (setq font-lock-defaults '(nil))
  (font-lock-add-keywords 'text-mode
                          '(("1" . font-lock-warning-face)
                            ("2" . font-lock-type-face)
                            ("3" . font-lock-function-name-face)
                            ("4" . font-lock-keyword-face)
                            ("5" . font-lock-preprocessor-face))))

(add-hook 'text-mode-hook #'setup-erratic-world-highlighting)