From f2ea6b328f95ae2f4cd7bd54ff027ffee2577125 Mon Sep 17 00:00:00 2001
From: Michael Zhang <mail@mzhang.io>
Date: Mon, 29 May 2023 11:08:35 -0500
Subject: [PATCH] mapgen

---
 .envrc      |   1 +
 .gitignore  |   2 +
 Cargo.lock  | 792 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 Cargo.toml  |   7 +
 flake.lock  | 112 ++++++++
 flake.nix   |  34 +++
 src/lib.rs  |   7 +
 src/main.rs |  11 +
 src/map.rs  | 146 ++++++++++
 9 files changed, 1104 insertions(+), 8 deletions(-)
 create mode 100644 .envrc
 create mode 100644 flake.lock
 create mode 100644 flake.nix
 create mode 100644 src/map.rs

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
index 2538f68..67305c6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,3 +38,5 @@ next-env.d.ts
 # Added by cargo
 
 /target
+
+.direnv
diff --git a/Cargo.lock b/Cargo.lock
index 7d222c0..caf0ee8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,13 +2,25 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "ab_glyph_rasterizer"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c71b1793ee61086797f5c80b6efa2b8ffa6d5dd703f118545808a7f2e27f7046"
+
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
 [[package]]
 name = "ahash"
 version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.9",
  "once_cell",
  "version_check",
 ]
@@ -68,6 +80,15 @@ version = "1.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8"
 
+[[package]]
+name = "approx"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "arrayvec"
 version = "0.7.2"
@@ -86,12 +107,30 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "bit_field"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bumpalo"
+version = "3.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
+
+[[package]]
+name = "bytemuck"
+version = "1.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17febce684fd15d89027105661fec94afb475cb995fbc59d2865198446ba2eea"
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
@@ -155,12 +194,27 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
 
+[[package]]
+name = "color_quant"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
+
 [[package]]
 name = "colorchoice"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "conv"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ff10625fd0ac447827aa30ea8b861fead473bb60aeb73af6c1c58caf0d1299"
+dependencies = [
+ "custom_derive",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -223,6 +277,104 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
+[[package]]
+name = "custom_derive"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef8ae57c4978a2acd8b869ce6b9ca1dfe817bff704c220209fdef2c0b75a01b9"
+
+[[package]]
+name = "darling"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b750cb3417fd1b327431a470f388520309479ab0bf5e323505daf0290cd3850"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "109c1ca6e6b7f82cc233a97004ea8ed7ca123a9af07a8230878fcfda9b158bf0"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4aab4dbc9f7611d8b55048a3a16d2d010c2c8334e46304b40ac1cc14bf3b48e"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "delaunator"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ab46e386c7a38300a0d93b0f3e484bc2ee0aded66c47b14762ec9ab383934fa"
+dependencies = [
+ "robust",
+]
+
+[[package]]
+name = "derivative"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "derive_builder"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d67778784b508018359cbc8696edb3db78160bab2c2a28ba7f56ef6932997f8"
+dependencies = [
+ "derive_builder_macro",
+]
+
+[[package]]
+name = "derive_builder_core"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c11bdc11a0c47bc7d37d582b5285da6849c96681023680b906673c5707af7b0f"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "derive_builder_macro"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebcda35c7a396850a55ffeac740804b40ffec779b98fffbb1738f4033f0ee79e"
+dependencies = [
+ "derive_builder_core",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "either"
 version = "1.8.1"
@@ -250,6 +402,60 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "exr"
+version = "1.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdd2162b720141a91a054640662d3edce3d50a944a50ffca5313cd951abb35b4"
+dependencies = [
+ "bit_field",
+ "flume",
+ "half",
+ "lebe",
+ "miniz_oxide 0.6.2",
+ "rayon-core",
+ "smallvec",
+ "zune-inflate",
+]
+
+[[package]]
+name = "fdeflate"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d329bdeac514ee06249dabc27877490f17f5d371ec693360768b838e19f3ae10"
+dependencies = [
+ "simd-adler32",
+]
+
+[[package]]
+name = "flate2"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide 0.7.1",
+]
+
+[[package]]
+name = "flume"
+version = "0.10.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1657b4441c3403d9f7b3409e47575237dac27b1b5726df654a6ecbf92f0f7577"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "nanorand",
+ "pin-project",
+ "spin",
+]
+
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
 [[package]]
 name = "fs2"
 version = "0.4.3"
@@ -260,6 +466,18 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "futures-core"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
+
+[[package]]
+name = "futures-sink"
+version = "0.3.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e"
+
 [[package]]
 name = "fxhash"
 version = "0.2.1"
@@ -269,6 +487,17 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi 0.9.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.9"
@@ -276,8 +505,29 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c85e1d9ab2eadba7e5040d4e09cbd6d072b76a557ad64e797c2cb9d4da21d7e4"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "gif"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80792593675e051cf94a4b111980da2ba60d4a83e43e0048c5693baab3977045"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
+[[package]]
+name = "half"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02b4af3693f1b705df946e9fe5631932443781d0aabb423b62fcd4d73f6d2fd0"
+dependencies = [
+ "crunchy",
 ]
 
 [[package]]
@@ -320,6 +570,49 @@ dependencies = [
  "rayon",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
+[[package]]
+name = "image"
+version = "0.24.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "527909aa81e20ac3a44803521443a765550f09b5130c2c2fa1ea59c2f8f50a3a"
+dependencies = [
+ "bytemuck",
+ "byteorder",
+ "color_quant",
+ "exr",
+ "gif",
+ "jpeg-decoder",
+ "num-rational",
+ "num-traits",
+ "png",
+ "qoi",
+ "tiff",
+]
+
+[[package]]
+name = "imageproc"
+version = "0.23.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6aee993351d466301a29655d628bfc6f5a35a0d062b6160ca0808f425805fd7"
+dependencies = [
+ "approx",
+ "conv",
+ "image",
+ "itertools",
+ "nalgebra 0.30.1",
+ "num",
+ "rand 0.7.3",
+ "rand_distr",
+ "rayon",
+ "rusttype",
+]
+
 [[package]]
 name = "instant"
 version = "0.1.12"
@@ -352,6 +645,15 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "jobserver"
 version = "0.1.26"
@@ -361,6 +663,30 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "jpeg-decoder"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc0000e42512c92e31c2252315bda326620a4e034105e900c98ec492fa077b3e"
+dependencies = [
+ "rayon",
+]
+
+[[package]]
+name = "js-sys"
+version = "0.3.63"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f37a4a5928311ac501dee68b3c7613a1037d0edb30c8e5427bd832d55d1b790"
+dependencies = [
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "lebe"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
+
 [[package]]
 name = "libc"
 version = "0.2.144"
@@ -392,6 +718,16 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "matrixmultiply"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "090126dc04f95dc0d1c1c91f61bdd474b3930ca064c1edc8a849da2c6cbe1e77"
+dependencies = [
+ "autocfg",
+ "rawpointer",
+]
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -413,12 +749,82 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
+[[package]]
+name = "miniz_oxide"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b275950c28b37e794e8c55d88aeb5e139d0ce23fdbbeda68f8d7174abdf9e8fa"
+dependencies = [
+ "adler",
+]
+
+[[package]]
+name = "miniz_oxide"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+dependencies = [
+ "adler",
+ "simd-adler32",
+]
+
 [[package]]
 name = "mopa"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a785740271256c230f57462d3b83e52f998433a7062fc18f96d5999474a9f915"
 
+[[package]]
+name = "nalgebra"
+version = "0.30.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fb2d0de08694bed883320212c18ee3008576bfe8c306f4c3c4a58b4876998be"
+dependencies = [
+ "approx",
+ "matrixmultiply",
+ "num-complex",
+ "num-rational",
+ "num-traits",
+ "simba 0.7.3",
+ "typenum",
+]
+
+[[package]]
+name = "nalgebra"
+version = "0.32.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d68d47bba83f9e2006d117a9a33af1524e655516b8919caac694427a6fb1e511"
+dependencies = [
+ "approx",
+ "matrixmultiply",
+ "nalgebra-macros",
+ "num-complex",
+ "num-rational",
+ "num-traits",
+ "simba 0.8.1",
+ "typenum",
+]
+
+[[package]]
+name = "nalgebra-macros"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d232c68884c0c99810a5a4d333ef7e47689cfd0edc85efc9e54e1e6bf5212766"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "nanorand"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a51313c5820b0b02bd422f4b44776fbf47961755c74ce64afc73bfad10226c3"
+dependencies = [
+ "getrandom 0.2.9",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -429,6 +835,82 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "num"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43db66d1170d347f9a065114077f7dccb00c1b9478c89384490a3425279a4606"
+dependencies = [
+ "num-bigint",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+]
+
+[[package]]
+name = "num-bigint"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02e0d21255c828d6f128a1e41534206671e8c3ea0c62f32291e808dc82cff17d"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
+dependencies = [
+ "autocfg",
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.15.0"
@@ -451,11 +933,27 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "clap",
- "rand",
+ "delaunator",
+ "derivative",
+ "derive_builder",
+ "image",
+ "imageproc",
+ "itertools",
+ "nalgebra 0.32.2",
+ "rand 0.8.5",
  "sled",
  "specs",
 ]
 
+[[package]]
+name = "owned_ttf_parser"
+version = "0.15.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05e6affeb1632d6ff6a23d2cd40ffed138e82f1532571a26f527c8a284bb2fbb"
+dependencies = [
+ "ttf-parser",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.11.2"
@@ -481,6 +979,45 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f746c4065a8fa3fe23974dd82f15431cc8d40779821001404d10d2e79ca7d79"
+
+[[package]]
+name = "pin-project"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c95a7476719eab1e366eaf73d0260af3021184f18177925b07f54b30089ceead"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39407670928234ebc5e6e580247dd567ad73a3578460c5990f9503df207e8f07"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.17",
+]
+
+[[package]]
+name = "png"
+version = "0.17.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aaeebc51f9e7d2c150d3f3bfeb667f2aa985db5ef1e3d212847bdedb488beeaa"
+dependencies = [
+ "bitflags",
+ "crc32fast",
+ "fdeflate",
+ "flate2",
+ "miniz_oxide 0.7.1",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -496,6 +1033,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "qoi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6d64c71eb498fe9eae14ce4ec935c555749aef511cca85b5568910d6e48001"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.28"
@@ -505,6 +1051,19 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
+dependencies = [
+ "getrandom 0.1.16",
+ "libc",
+ "rand_chacha 0.2.2",
+ "rand_core 0.5.1",
+ "rand_hc",
+]
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -512,8 +1071,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
- "rand_chacha",
- "rand_core",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.5.1",
 ]
 
 [[package]]
@@ -523,7 +1092,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
+dependencies = [
+ "getrandom 0.1.16",
 ]
 
 [[package]]
@@ -532,9 +1110,33 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.9",
 ]
 
+[[package]]
+name = "rand_distr"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96977acbdd3a6576fb1d27391900035bf3863d4a16422973a409b488cf29ffb2"
+dependencies = [
+ "rand 0.7.3",
+]
+
+[[package]]
+name = "rand_hc"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
+dependencies = [
+ "rand_core 0.5.1",
+]
+
+[[package]]
+name = "rawpointer"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"
+
 [[package]]
 name = "rayon"
 version = "1.7.0"
@@ -566,6 +1168,12 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "robust"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5864e7ef1a6b7bcf1d6ca3f655e65e724ed3b52546a0d0a663c991522f552ea"
+
 [[package]]
 name = "rustix"
 version = "0.37.19"
@@ -580,6 +1188,25 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "rusttype"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ff8374aa04134254b7995b63ad3dc41c7f7236f69528b28553da7d72efaa967"
+dependencies = [
+ "ab_glyph_rasterizer",
+ "owned_ttf_parser",
+]
+
+[[package]]
+name = "safe_arch"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "794821e4ccb0d9f979512f9c1973480123f9bd62a90d74ab0f9426fcf8f4a529"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -626,6 +1253,38 @@ version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a5ea33232fdcf1bf691ca33450e5a94dde13e1a8cbb8caabc5e4f9d761e10b1a"
 
+[[package]]
+name = "simba"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f3fd720c48c53cace224ae62bef1bbff363a70c68c4802a78b5cc6159618176"
+dependencies = [
+ "approx",
+ "num-complex",
+ "num-traits",
+ "paste",
+ "wide",
+]
+
+[[package]]
+name = "simba"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "061507c94fc6ab4ba1c9a0305018408e312e17c041eb63bef8aa726fa33aceae"
+dependencies = [
+ "approx",
+ "num-complex",
+ "num-traits",
+ "paste",
+ "wide",
+]
+
+[[package]]
+name = "simd-adler32"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "238abfbb77c1915110ad968465608b68e869e0772622c9656714e73e5a1a522f"
+
 [[package]]
 name = "sled"
 version = "0.34.7"
@@ -679,6 +1338,15 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+dependencies = [
+ "lock_api",
+]
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -707,6 +1375,23 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "tiff"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7449334f9ff2baf290d55d73983a7d6fa15e01198faef72af07e2a8db851e471"
+dependencies = [
+ "flate2",
+ "jpeg-decoder",
+ "weezl",
+]
+
+[[package]]
+name = "ttf-parser"
+version = "0.15.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b3e06c9b9d80ed6b745c7159c40b311ad2916abb34a49e9be2653b90db0d8dd"
+
 [[package]]
 name = "tuple_utils"
 version = "0.4.0"
@@ -722,6 +1407,12 @@ dependencies = [
  "nom",
 ]
 
+[[package]]
+name = "typenum"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "497961ef93d974e23eb6f433eb5fe1b7930b659f06d12dec6fc44a8f554c0bba"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.9"
@@ -740,7 +1431,7 @@ version = "1.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "345444e32442451b267fc254ae85a209c64be56d2890e601a0c37ff0c3c5ecd2"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.9",
  "serde",
 ]
 
@@ -750,12 +1441,88 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bba0e8cb82ba49ff4e229459ff22a191bbe9a1cb3a341610c9c33efc27ddf73"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b04bc93f9d6bdee709f6bd2118f57dd6679cf1176a1af464fca3ab0d66d8fb"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.17",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14d6b024f1a526bb0234f52840389927257beb670610081360e5a03c5df9c258"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e128beba882dd1eb6200e1dc92ae6c5dbaa4311aa7bb211ca035779e5efc39f8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.17",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.86"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed9d5b4305409d1fc9482fee2d7f9bcbf24b3972bf59817ef757e23982242a93"
+
+[[package]]
+name = "weezl"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
+
+[[package]]
+name = "wide"
+version = "0.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cd0496a71f3cc6bc4bf0ed91346426a5099e93d89807e663162dc5a1069ff65"
+dependencies = [
+ "bytemuck",
+ "safe_arch",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -872,3 +1639,12 @@ dependencies = [
  "cc",
  "libc",
 ]
+
+[[package]]
+name = "zune-inflate"
+version = "0.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73ab332fe2f6680068f3582b16a24f90ad7096d5d39b974d1c0aff0125116f02"
+dependencies = [
+ "simd-adler32",
+]
diff --git a/Cargo.toml b/Cargo.toml
index ab47176..59cec6b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,13 @@ edition = "2021"
 [dependencies]
 anyhow = "1.0.71"
 clap = { version = "4.3.0", features = ["derive"] }
+delaunator = "1.0.2"
+derivative = "2.2.0"
+derive_builder = "0.12.0"
+image = "0.24.6"
+imageproc = "0.23.0"
+itertools = "0.10.5"
+nalgebra = "0.32.2"
 rand = "0.8.5"
 sled = { version = "0.34.7", features = ["zstd", "compression"] }
 specs = { version = "0.18.0", features = ["specs-derive", "uuid", "uuid_entity"] }
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..88b5380
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,112 @@
+{
+  "nodes": {
+    "fenix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1685254813,
+        "narHash": "sha256-Pod+U90fDJJml5cwoOvx/KKBF4HmWtK9Cttql5sfwFQ=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "2804d7ee704057959d831b038dea0e6845b18658",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1685168767,
+        "narHash": "sha256-wQgnxz0PdqbyKKpsWl/RU8T8QhJQcHfeC6lh1xRUTfk=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "e10802309bf9ae351eb27002c85cfdeb1be3b262",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1685325175,
+        "narHash": "sha256-QAKsxoePrMUoHRYpfbxBeVXDKoRJ8S864/UMjML+JiU=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "4295779fbaacb7158d5f32c4aa2740ef7b56d91b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1685177170,
+        "narHash": "sha256-bRURsRZZmBZtQo8OHD/PRslGQC04wed6lWroQaAPSPg=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "f6e3a87bf9478574f8c64ac2efec125bc19b1c64",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..137ae84
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,34 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs";
+    fenix.url = "github:nix-community/fenix";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, fenix }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ fenix.overlays.default ];
+        };
+
+        toolchain = pkgs.fenix.stable;
+      in rec {
+        devShell = pkgs.mkShell {
+          packages = (with pkgs; [
+            cargo-deny
+            cargo-edit
+            cargo-expand
+            cargo-flamegraph
+            cargo-watch
+          ]) ++ (with toolchain; [
+            cargo
+            rustc
+            clippy
+
+            # Get the nightly version of rustfmt so we can wrap comments
+            pkgs.fenix.default.rustfmt
+          ]);
+        };
+      });
+}
diff --git a/src/lib.rs b/src/lib.rs
index 7cd7089..42fe514 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,11 @@
+#[macro_use]
+extern crate derive_builder;
+#[macro_use]
+extern crate derivative;
+extern crate nalgebra as na;
+
 pub mod config;
+pub mod map;
 
 use std::{
   collections::{HashMap, HashSet},
diff --git a/src/main.rs b/src/main.rs
index 768b3a4..f78b559 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,16 @@
 use anyhow::Result;
+use clap::Parser;
+use openstellaris::map::{Map, MapOptionsBuilder};
+
+#[derive(Debug, Parser)]
+struct Opt {}
 
 fn main() -> Result<()> {
+  let rng = rand::thread_rng();
+
+  let map_options = MapOptionsBuilder::default().build()?;
+  let map = Map::generate(map_options, rng);
+  map.dump_image("out.png")?;
+
   Ok(())
 }
diff --git a/src/map.rs b/src/map.rs
new file mode 100644
index 0000000..524a390
--- /dev/null
+++ b/src/map.rs
@@ -0,0 +1,146 @@
+use std::{collections::HashSet, hash::Hash, path::Path};
+
+use anyhow::Result;
+use image::{Rgb, RgbImage};
+use imageproc::{
+  drawing::{
+    draw_filled_circle_mut, draw_filled_rect, draw_filled_rect_mut, draw_line_segment_mut,
+  },
+  rect::Rect,
+};
+use itertools::Itertools;
+use nalgebra::Vector2;
+use rand::Rng;
+
+pub struct Map {
+  points: Vec<Vector2<f64>>,
+
+  /// Pairs of edges (lower one first)
+  edges: HashSet<(usize, usize)>,
+}
+
+#[derive(Debug, Derivative, Builder)]
+pub struct MapOptions {
+  /// Map size in world coordinate space
+  #[builder(default = "100")]
+  map_size: u32,
+}
+
+impl Map {
+  pub fn generate(opts: MapOptions, rand: impl Rng) -> Self {
+    // Generate a random array of points
+    // TODO: Implement a real algorithm
+    // TODO: Density?
+
+    // For now, let's go with a grid of points
+    let mut points = Vec::new();
+    let map_size_f: f64 = opts.map_size.into();
+    let cell_size = map_size_f / 200.0;
+    for y in -20..20 {
+      let pos_y = cell_size * y as f64;
+      for x in -20..20 {
+        let offset = (y % 2) as f64 * cell_size / 2.0;
+        let pos_x = cell_size * x as f64 + offset;
+        points.push(Vector2::new(pos_x, pos_y));
+      }
+    }
+
+    // Compute delaunay triangulation
+    let edges = {
+      use delaunator::{triangulate, Point, Triangulation};
+      let points = points
+        .iter()
+        .map(|p| Point { x: p.x, y: p.y })
+        .collect::<Vec<_>>();
+
+      let result = triangulate(&points);
+
+      let mut edges = HashSet::new();
+
+      for (a, b, c) in result.triangles.iter().tuples() {
+        edges.insert((*a.min(b), *a.max(b)));
+        edges.insert((*a.min(c), *a.max(c)));
+        edges.insert((*b.min(c), *b.max(c)));
+      }
+
+      edges
+    };
+
+    Map { points, edges }
+  }
+
+  pub fn dump_image(&self, path: impl AsRef<Path>) -> Result<()> {
+    let path = path.as_ref();
+
+    // Find the bounding rectangle of the map
+    let (top_left, bottom_right) = self.points.iter().fold(
+      (
+        Vector2::new(f64::INFINITY, f64::INFINITY),
+        Vector2::new(f64::NEG_INFINITY, f64::NEG_INFINITY),
+      ),
+      |(top_left, bottom_right), point| {
+        (
+          Vector2::new(top_left.x.min(point.x), top_left.y.min(point.y)),
+          Vector2::new(bottom_right.x.max(point.x), bottom_right.y.max(point.y)),
+        )
+      },
+    );
+
+    let space_width = bottom_right.x - top_left.x;
+    let space_height = top_left.y - bottom_right.y;
+
+    let image_width = 1024;
+    let image_height = 1024;
+
+    let background_color = Rgb([32, 108, 172]);
+    let line_color = Rgb([160, 160, 160]);
+    let circle_color = Rgb([202, 202, 202]);
+
+    let mut image = RgbImage::new(image_width, image_height);
+
+    // Draw the background
+    draw_filled_rect_mut(
+      &mut image,
+      Rect::at(0, 0).of_size(image_width, image_height),
+      background_color,
+    );
+
+    let to_image_space_f32 = |p: &Vector2<f64>| {
+      let image_x = ((p.x - top_left.x) * image_width as f64 / space_width) as f32;
+      let image_y =
+        image_height as f32 - ((p.y - bottom_right.y) * image_height as f64 / space_height) as f32;
+      (image_x, image_y)
+    };
+
+    let to_image_space_i32 = |p: &Vector2<f64>| {
+      let image_x = ((p.x - top_left.x) * image_width as f64 / space_width) as i32;
+      let image_y =
+        image_height as i32 - ((p.y - bottom_right.y) * image_height as f64 / space_height) as i32;
+      (image_x, image_y)
+    };
+
+    // Draw the edges
+    for (from_idx, to_idx) in self.edges.iter() {
+      println!("{from_idx} {to_idx}");
+      let from = self.points[*from_idx];
+      let to = self.points[*to_idx];
+
+      let image_from = to_image_space_f32(&from);
+      let image_to = to_image_space_f32(&to);
+
+      draw_line_segment_mut(&mut image, image_from, image_to, line_color);
+    }
+
+    // Draw the points
+    for point in self.points.iter() {
+      // Map the point to image-space
+      let image_point = to_image_space_i32(point);
+
+      draw_filled_circle_mut(&mut image, image_point, 2, circle_color);
+    }
+
+    image.save(path)?;
+
+    Ok(())
+  }
+}