Commit graph

31 commits

Author SHA1 Message Date
Griffin Smith
25a1c5ade3 Factor out an EntityAttributes type
Factor out a new EntityAttributes type from some of the methods of the
Entity class, to avoid the proliferation of 1-argument boolean methods
on the entity class that always have to be forwarded through the Entity
instance for SomeEntity if they have defaults (forgetting to do which
has wasted tons of my time up to this point). Currently blocksVision,
blocksObject, and collision are all in there.
2020-02-08 17:24:27 -05:00
Griffin Smith
72edcff323 Put new levels at the right position in the list
New levels need to go at the *end* of the list of levels, not the
beginning - otherwise we jump to the proper position on the new level
but the current level stays the same (oops).
2020-01-20 10:31:02 -05:00
Griffin Smith
b6f170c02c Generate more reasonable doors
Generate doors at more reasonable positions, by:

- Only generating doors at the *ends* of hallways, where there's a
  tee-shaped opening
- Never generating two doors adjacent to each other
2020-01-08 23:15:32 -05:00
Griffin Smith
0f79a06733 Add staircases, and moving between levels
Currently we just pick randomly between the cave and dungeon level
generators. There's a lot of bugs here, but it's *sorta* working, so I'm
leaving it as is.
2020-01-05 12:55:15 -05:00
Griffin Smith
6b0bab0e85 Add support for multiple levels
Add a data structure, based on the zipper comonad, which provides
support for multiple levels, each of which is its own entity map. The
current level is provided by coreturn, which the `entities` lens has
been updated to use. Nothing currently supports going up or down levels
yet - that's coming next.
2020-01-04 23:48:51 -05:00
Griffin Smith
14997bc1a3 Fix ambiguity error in Opposite tests
For some reason cabal wasn't properly recompiling this file locally to
pick up the introduction of an ambiguity error.
2019-12-31 11:28:51 -05:00
Griffin Smith
e76567b9e7 Add dungeon level generation
Add a dungeon level generator, which:

1. generates an infinite sequence of rectangular rooms within the
   dimensions of the level
2. removes any duplicates from that sequence
3. Generates a graph from the delaunay triangulation of the centerpoints
   of those rooms
4. Generates the minimum-spanning-tree of that delaunay triangulation,
   with weights given by line length in points
5. Adds back a subset (default 10-15%) of edges from the delaunay
   triangulation to the graph
6. Uses the resulting graph to draw corridors between the rooms, using a
   random point on the near edge of each room to pick the points of the
   corridors
2019-12-30 11:31:56 -05:00
Griffin Smith
6f427fe4d6 Fix circle rendering, add filled circle
Make raster circle rendering use the Rasterific package instead of
attempting desperately to hand-roll it, and add a method for generating
filled circles.
2019-12-30 11:24:34 -05:00
Griffin Smith
32421916e0 Update the vision every time we step the game
Recalculate the character's lines of sight every time we step the game,
rather than just every time the character *moves*. I had originally
thought this was a non-contiguous lines-of-sight bug - which there's a
test disproving - but it actually turned out to be that actions like
eating or attacking would step the game forward (thus moving gormlaks)
without re-calculating the positions visible to the character.
2019-12-23 17:55:28 -05:00
Griffin Smith
f701a0be40 Preserve entityIDs in atPosition's setter
Make the setter for the atPosition lens preserve entityIDs for
already-existing entities at the position, so that when we plop
something in the same tile as the character the character's entity ID
doesn't disappear.
2019-12-23 17:22:56 -05:00
Griffin Smith
052bc8455a Add a drop command
Add a drop command, bound to 'd', which prompts the character for an
item in their inventory, removes it from the inventory, and places it on
the ground. Along the way I had to fix a bug in the
`EntityMap.atPosition` lens, which was always appending to the existing
entities at the position on set, without removing the entities that were
already there - the rabbit hole of quickchecking the lens laws here also
lead to replacing the target of this lens with a newtype called
`VectorBag`, which ignores order (since the entitymap makes no
guarantees about order of entities at a given position).
2019-12-23 17:22:56 -05:00
Griffin Smith
97a5c61f28 Fix an injectivity issue with saving the game
Fix an injectivity issue with JSON-encoding the entity map that was
causing the game saving to not properly round-trip. As part of this,
there's a refactor to the internals of the entity map to use sets
instead of vectors, which should also get us a nice perf boost.
2019-11-30 15:00:39 -05:00
Griffin Smith
8a1235c3dc Use menus for combat and picking up items
Refactor a bunch of stuff around to allow for polymorphically surfacing
an EntityChar for all entities, and use this to write a generic
`entityMenu` function, which generates a menu from the chars of a list
of entities - and use that to fully implement (removing `undefined`)
menus for both attacking and picking things up when there are multiple
entities on the relevant tile.
2019-11-29 22:59:15 -05:00
Griffin Smith
f37d0f75c0 Implement saving+loading the game
Implement ToJSON and FromJSON for all of the various pieces of the game
state, and add a pair of functions saveGame/loadGame implementing a
prism to save the game as zlib-compressed JSON. To test this, there's
now Arbitrary, CoArbitrary, and Function instances for all the parts of
the game state - to get around circular imports with the concrete
entities this unfortunately is happening via orphan instances, plus an
hs-boot file to break a circular import that was just a little too hard
to remove by moving things around. Ugh.
2019-11-29 14:33:52 -05:00
Griffin Smith
4882350f5d Don't walk gormlaks into walls
Because of the way lines are drawn, a specific configuration of
positioning for gormlaks would have them decide they desperately wanted
to walk *inside* a wall, which they would then both fail to do but also
always collide with whenever they tried to go anywhere else.
2019-10-15 22:54:31 -04:00
Griffin Smith
8a4220df83 Implement speed and ticks
Gormlaks now move 1/8th the speed of the character, which means we can
run away from them - yay!

Unfortunately this also introduces a bug where they'll eventually get
stuck and not do anything, so I'll be tackling that next.
2019-10-13 12:37:08 -04:00
Griffin Smith
8d36fb4af2 Make the positionedCharacter test run more quickly
Dial down the quickcheck size and num tests on this
2019-10-12 15:17:22 -04:00
Griffin Smith
6ab7cdfdc9 Only allow adjacent gormlaks to attack
Previously the isUnit function was falsely returning `True` for
positions that were one tile off in *either* direction from the
character, when it should've been *both*. Oops.
2019-10-06 13:13:00 -04:00
Griffin Smith
de8052cef8 Allow eating edible items
Add menu support to the prompt system, and an "Eat" command that prompts
for an item to eat and eats the item the character specifies, restoring
an amount of hitpoints configurable via the item raw type.
2019-10-06 12:50:29 -04:00
Griffin Smith
5c6ba40019 Display multiple messages per turn
When tracking message history, save messages associated with the turn
they were displayed on, which allows us to have the notion of the
"current turn's" messages (provided via a MonoComonad instance).
2019-10-05 16:25:27 -04:00
Griffin Smith
05da490185 Gormlaks attack back
When gormlaks see the character, they step towards them and attack
dealing 1 damage when adjacent. Characters have hitpoints now, displayed
at the bottom of the game screen, and when the game is over they die.
2019-09-29 10:54:52 -04:00
Griffin Smith
dd16166665 Describe what you see when you walk over items
Every step the character takes, describe the entities at that position
excluding the character.
2019-09-20 19:38:46 -04:00
Griffin Smith
7770ed0548 Add the beginnings of a prompt system
Add the beginnings of a generic prompt system, with exclusive support
atm for string prompts, and test it out by asking the character for
their name at startup
2019-09-20 12:03:30 -04:00
Griffin Smith
58fce2ec19 Progressively reveal the map to the player
As the character walks around the map, progressively reveal the entities
on the map to them, using an algorithm based on well known
circle-rasterizing and line-rasterizing algorithms to calculate lines of
sight that are potentially obscured by walls.
2019-09-15 17:30:57 -04:00
Griffin Smith
9ebdc6fbb4 Convert generated levels to walls
Add support for converting generated levels to walls, and merge one into
the entity map at the beginning of the game.

There's nothing here that guarantees the character ends up *inside* the
level though (they almost always don't) so that'll have to be slotted
into the level generation process.
2019-09-09 20:54:33 -04:00
Griffin Smith
f03ad6bbd6 Add cellular-automata cave generator
Add a cellular-automata-based cave level generator, plus an
optparse-applicative-based CLI for invoking level generators in general.
2019-09-07 14:52:37 -04:00
Griffin Smith
4d270712ae Add raws, loaded statically from a folder
Add raw types with support for both creatures and items, loaded
statically from a "raws" folder just like in the Rust version.
2019-09-02 13:59:28 -04:00
Griffin Smith
18551cdf30 Add a previous message command
Add a "previous message" command, triggered via ctrl+p.

I attempted here to get the message area to still take up a row of space
post-hiding the message, but failed - should revisit that at some point
2019-09-02 10:52:03 -04:00
Griffin Smith
2fd3e4c9ad Implement messages
Implement messages almost the same as in the Rust version, only with
YAML instead of TOML this time, and a regular old mustache template
instead of something handrolled. Besides that, pretty much everything
here is the same.
2019-09-01 13:54:27 -04:00
Griffin Smith
4ef19aa35a Add entities, and allow walking around
Add support for entities via a port of the EntityMap type, and implement
command support starting at basic hjkl.
2019-08-31 13:18:51 -04:00
Griffin Smith
d3f3890dc5 An @-sign in a box, in haskell
Initial commit of a Haskell version of Xanthous, written using Brick and
built with Nix.

This is so much nicer and so much easier
2019-08-25 13:28:10 -04:00