From 6a7ecc11b6d267a9ca47813b5ba293470c6aa6d4 Mon Sep 17 00:00:00 2001
From: Tobias Berger <tobi.berger13@gmail.com>
Date: Sun, 11 Dec 2022 22:24:17 +0100
Subject: [PATCH] WIP

---
 Cargo.lock                        | 262 +++++++++++++++---------------
 Cargo.toml                        |   2 +-
 planet/Cargo.toml                 |   5 -
 planet/src/human_group.rs         |   2 +-
 planet/src/lib.rs                 |   5 +-
 planet/src/perlin.rs              |   2 +
 planet/src/saving/terrain_cell.rs | 148 +++++++++++++++++
 planet/src/terrain_cell.rs        |  50 ++++++
 planet/src/world.rs               |  39 +----
 src/planet_renderer.rs            |  61 +++++--
 10 files changed, 393 insertions(+), 183 deletions(-)
 create mode 100644 planet/src/saving/terrain_cell.rs
 create mode 100644 planet/src/terrain_cell.rs

diff --git a/Cargo.lock b/Cargo.lock
index a69cf20..dbd5525 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -55,9 +55,9 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "0.7.19"
+version = "0.7.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4f55bd91a0978cbfd91c457a164bab8b4001c833b7f323132c0a4e1922dd44e"
+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
 dependencies = [
  "memchr",
 ]
@@ -131,20 +131,20 @@ checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
 
 [[package]]
 name = "ash"
-version = "0.37.0+1.3.209"
+version = "0.37.1+1.3.235"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "006ca68e0f2b03f22d6fa9f2860f85aed430d257fec20f8879b2145e7c7ae1a6"
+checksum = "911015c962d56e2e4052f40182ca5462ba60a3d2ff04e827c365a0ab3d65726d"
 dependencies = [
  "libloading",
 ]
 
 [[package]]
 name = "async-channel"
-version = "1.7.1"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e14485364214912d3b19cc3435dde4df66065127f05fa0d75c712f36f12c2f28"
+checksum = "cf46fee83e5ccffc220104713af3292ff9bc7c64c7de289f66dae8e38d826833"
 dependencies = [
- "concurrent-queue 1.2.4",
+ "concurrent-queue 2.0.0",
  "event-listener",
  "futures-core",
 ]
@@ -199,18 +199,18 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "bevy"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3654d60973fcde065efcfe0c9066c81a76987d28c45233998b2ccdc581dcd914"
+checksum = "dae99b246505811f5bc19d2de1e406ec5d2816b421d58fa223779eb576f472c9"
 dependencies = [
  "bevy_internal",
 ]
 
 [[package]]
 name = "bevy_app"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7240e455d6976b20d24bf8eda37cd9154116fe9cc2beef7bdc009b4c6fff139"
+checksum = "536e4d0018347478545ed8b6cb6e57b9279ee984868e81b7c0e78e0fb3222e42"
 dependencies = [
  "bevy_derive",
  "bevy_ecs",
@@ -223,9 +223,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_asset"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86ca05c472cd4939aed5b2980ad9b416a250ae4674824e8c4b569ddf18ab5230"
+checksum = "6db1bb550168304df69c867c09125e1aae7ff51cf21575396e1598bf293442c4"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -250,9 +250,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_core"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d344ff340874fb3f1e458f03eca2b731cb8174495e9c0828f5e4569765489cb"
+checksum = "96299aceb3c8362cb4aa39ff81c7ef758a5f4e768d16b5046a91628eff114ac0"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -265,9 +265,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_core_pipeline"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13523e290f9aad62987e04836d66819fb97afeaf794847b6f64121c62a4db916"
+checksum = "dc128a9860aadf16fb343ae427f2768986fd91dce64d945455acda9759c48014"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -285,9 +285,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_derive"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a12e50d2ff8423438e971c44a90baefc9e351edd45b50b8d077f9ad4f7a0a2a5"
+checksum = "7baf73c58d41c353c6fd08e6764a2e7420c9f19e8227b391c50981db6d0282a6"
 dependencies = [
  "bevy_macro_utils",
  "quote",
@@ -296,9 +296,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_diagnostic"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3415f3a220d8706daac84986d744374fd18883add3a22e894af8cddf2cf1c29"
+checksum = "63bf96ec7980fa25b77ff6c72dfafada477936c0dab76c1edf6c028c0e5fe0e4"
 dependencies = [
  "bevy_app",
  "bevy_core",
@@ -310,9 +310,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_ecs"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43b29e39772df5e8939f7f540ee152569eebeb3c2cc35a68670688ae008ba2cf"
+checksum = "d4c071d7c6bc9801253485e05d0c257284150de755391902746837ba21c0cf74"
 dependencies = [
  "async-channel",
  "bevy_ecs_macros",
@@ -330,9 +330,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_ecs_macros"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10b8e7e7fb3ab9554c77e0f8a2531abd05d40ddb0145a8dfa72434cefa52ee5c"
+checksum = "c15bd45438eeb681ad74f2d205bb07a5699f98f9524462a30ec764afab2742ce"
 dependencies = [
  "bevy_macro_utils",
  "proc-macro2",
@@ -342,9 +342,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_egui"
-version = "0.17.0"
+version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33bf9a0085909f3dc3d5ca7be6a6e6792b8b30b98bba9cca13baa49e2f3e3206"
+checksum = "1cec5fb091ccae94917266fe9b1af8339ef1e47763360b38273a31457598b030"
 dependencies = [
  "arboard",
  "bevy",
@@ -354,9 +354,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_encase_derive"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a0773119830d63dde225338c0c556f84cd68e8e69de5b62a1b172fdddc5b915"
+checksum = "962b6bb0d30e92ec2e6c29837acce9e55b920733a634e7c3c5fd5a514bea7a24"
 dependencies = [
  "bevy_macro_utils",
  "encase_derive_impl",
@@ -364,9 +364,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_gltf"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd77158983e09cbbb8115a2c629bdf3249cfff58e8e19f1c62861b1e5495eaf1"
+checksum = "e853e346ba412354e02292c7aa5b9a9dccdfa748e273b1b7ebf8f6a172f89712"
 dependencies = [
  "anyhow",
  "base64",
@@ -392,9 +392,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_hierarchy"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23b5181dc3d621c3d18a1209791e82199409d6ddf5376ee19f2e26ad7bfd9b06"
+checksum = "8dd6d50c48c6e1bcb5e08a768b765323292bb3bf3a439b992754c57ffb85b23a"
 dependencies = [
  "bevy_app",
  "bevy_core",
@@ -407,9 +407,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_input"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10f72c3037535eb41b863a22c2e58d3845a096401f9b92204b6a240e36a5151b"
+checksum = "3378b5171284f4c4c0e8307081718a9fe458f846444616bd82d69110dcabca51"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -421,9 +421,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_internal"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ff89c2c2644c588d72cf505f15ad515479705c82ad7aa359ad2249646995a76"
+checksum = "4c46014b7e885b1311de06b6039e448454a4db55b8d35464798ba88faa186e11"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -455,9 +455,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_log"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66c1d5f2cbcf5c3ce87d42afb6ba98177f8f758278364cbc79a2b3bf38415f0e"
+checksum = "6c480bac54cf4ae76edc3ae9ae3fa7c5e1b385e7f2111ef5ec3fd00cf3a7998b"
 dependencies = [
  "android_log-sys",
  "bevy_app",
@@ -471,9 +471,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_macro_utils"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "656fa7b3434ac5d5c2883dde3c075f834ff51178f2f48ef2454b6f2ada75cb15"
+checksum = "022bb69196deeea691b6997414af85bbd7f2b34a8914c4aa7a7ff4dfa44f7677"
 dependencies = [
  "quote",
  "syn",
@@ -482,9 +482,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_math"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b26459575a5f9695788e3487aa0a5f9252562e0fc57065e6f35f370dbfac7d4a"
+checksum = "d434c77ab766c806ed9062ef8a7285b3b02b47df51f188d4496199c3ac062eaf"
 dependencies = [
  "glam",
  "serde",
@@ -492,18 +492,18 @@ dependencies = [
 
 [[package]]
 name = "bevy_mikktspace"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e67d9caff1be480eb097e1a5ee7332762e19a2ea3d07496017fc8221ea6bc46"
+checksum = "bbfb5908d33fd613069be516180b8f138aaaf6e41c36b1fd98c6c29c00c24a13"
 dependencies = [
  "glam",
 ]
 
 [[package]]
 name = "bevy_pbr"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a2e5069b351743e5660f837671135a7aac585cd2c1d7d0b90d92a2d84c2a1fd"
+checksum = "310b1f260a475d81445623e138e1b7245759a42310bc1f84b550a3f4ff8763bf"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -523,15 +523,15 @@ dependencies = [
 
 [[package]]
 name = "bevy_ptr"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c36f4d3af0cda50c07e2010d0351ab79594681116edd280592ca394db73ef32b"
+checksum = "8ec44f7655039546bc5d34d98de877083473f3e9b2b81d560c528d6d74d3eff4"
 
 [[package]]
 name = "bevy_reflect"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c39f74d7786a0016c74b6bfb57f44928d536bef8bf6db7505d4cbe9435aeda7b"
+checksum = "6deae303a7f69dc243b2fa35b5e193cc920229f448942080c8eb2dbd9de6d37a"
 dependencies = [
  "bevy_math",
  "bevy_ptr",
@@ -549,9 +549,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_reflect_derive"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b2c0aab36b060e88cd93c56710d9ce8ab6107596dc4cbb8a9d84ba98f39c63b"
+checksum = "a2bf4cb9cd5acb4193f890f36cb63679f1502e2de025e66a63b194b8b133d018"
 dependencies = [
  "bevy_macro_utils",
  "bit-set",
@@ -563,9 +563,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_render"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14033813fdd9587663ffa6b6d84327f30bd0398b40386677704bd4d608625420"
+checksum = "2e3282a8f8779d2aced93207fbed73f740937c6c2bd27bd84f0799b081c7fca5"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -605,9 +605,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_render_macros"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e29db44fb38743a08e71bed324a19b8ce2e9f2853abcb4640e03625dd55cc186"
+checksum = "b7acae697776ac05bea523e1725cf2660c91c53abe72c66782ea1e1b9eedb572"
 dependencies = [
  "bevy_macro_utils",
  "proc-macro2",
@@ -617,9 +617,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_scene"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5b98c58cba6417961856a57ba1116d78db3364b8e791ac517175f04b9abdb6b"
+checksum = "ea9c66a628c833d53bae54fe94cbc0d3f12c29e9d2e6c3f2356d45ad57db0c8c"
 dependencies = [
  "anyhow",
  "bevy_app",
@@ -639,9 +639,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_sprite"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b135b2ccf7c5eaf9b3e20e39ef80081842f122081c8ce988cb2054afd1af270e"
+checksum = "5ec01c7db7f698d95bcb70708527c3ae6bcdc78fc247abe74f935cae8f0a1145"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -664,9 +664,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_tasks"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5d91d94d2db1476d7452509c1967fe83d66da5f683f5d49ba31e0f455adfcdc"
+checksum = "680b16b53df9c9f24681dd95f4d772d83760bd19adf8bca00f358a3aad997853"
 dependencies = [
  "async-channel",
  "async-executor",
@@ -679,9 +679,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_text"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe4282d77fb5dd38bb2a7736a770f5e499782b8c546b9f7d73f6893ab04c8041"
+checksum = "60c74c1bdaabde7db28f6728aa13bc7b1d744a2201b2bbfd83d2224404c57f5c"
 dependencies = [
  "ab_glyph",
  "anyhow",
@@ -702,9 +702,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_time"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a259a4b04f5ae2d02998247a69e5a711b0754eb22971320bf727c6f4d7bf38fa"
+checksum = "1a5c38a6d3ea929c7f81e6adf5a6c62cf7e8c40f5106c2174d6057e9d8ea624d"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -715,9 +715,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_transform"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7b4cdac87f8a58c3ec166b5673dd35565c61eb0ec648e3b0cc30083170c0fb3"
+checksum = "ba13c57a040b89767191a6f6d720a635b7792793628bfa41a9e38b7026484aec"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -728,9 +728,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_ui"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da6d85fcefe5a2bf259c2ff58a7a29b6102070242dc385b42a2656f4e8918883"
+checksum = "60e82ace6156f11fcdf2319102ff8fb8367b82d1e32b7d05d387a1963602f965"
 dependencies = [
  "bevy_app",
  "bevy_asset",
@@ -757,9 +757,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_utils"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d7473635355a99fcf7181091a2ac11df03561706b1696cb0cc72e4ddd010571"
+checksum = "16750aae52cd35bd7b60eb61cee883420b250e11b4a290b8d44b2b2941795739"
 dependencies = [
  "ahash 0.7.6",
  "getrandom",
@@ -771,9 +771,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_window"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07a0d03022a6d1ec0d05c01a77f5592a9602bbc1cfc11ba457788b69f9ca175d"
+checksum = "0a44d3f3bd54a2261f4f57f614bf7bccc8d2832761493c0cd7dab81d98cc151e"
 dependencies = [
  "bevy_app",
  "bevy_ecs",
@@ -786,9 +786,9 @@ dependencies = [
 
 [[package]]
 name = "bevy_winit"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebc7b4e4f83e268dcbd6f9c4e1c18f7382e457f5f1b160da4c85d9a3f489771a"
+checksum = "c7b7e647ecd0b3577468da37767dcdd7c26ca9f80da0060b2ec4c77336b6d2e1"
 dependencies = [
  "approx",
  "bevy_app",
@@ -871,12 +871,12 @@ checksum = "c1db59621ec70f09c5e9b597b220c7a2b43611f4710dc03ceb8748637775692c"
 
 [[package]]
 name = "calloop"
-version = "0.10.2"
+version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "595eb0438b3c6d262395fe30e6de9a61beb57ea56290b00a07f227fe6e20cbf2"
+checksum = "5bcf530afb40e45e14440701e5e996d7fd139e84a912a4d83a8d6a0fb3e58663"
 dependencies = [
  "log",
- "nix 0.24.2",
+ "nix 0.25.1",
  "slotmap",
  "thiserror",
  "vec_map",
@@ -884,9 +884,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.76"
+version = "1.0.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76a284da2e6fe2092f2353e51713435363112dfd60030e22add80be333fb928f"
+checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
 
 [[package]]
 name = "cfg-if"
@@ -911,12 +911,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "cobs"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67ba02a97a2bd10f4b59b25c7973101c79642302776489e030cd13cdab09ed15"
-
 [[package]]
 name = "cocoa"
 version = "0.24.1"
@@ -994,9 +988,9 @@ dependencies = [
 
 [[package]]
 name = "const_panic"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ed2b28323eee4fb66bb824401daa3e46bd445b9a9298a3d382b320710ba69dd"
+checksum = "58baae561b85ca19b3122a9ddd35c8ec40c3bcd14fe89921824eae73f7baffbf"
 
 [[package]]
 name = "core-foundation"
@@ -1060,9 +1054,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.12"
+version = "0.8.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "edbafec5fa1f196ca66527c1b12c2ec4745ca14b50f1ad8f9f6f720b55d11fac"
+checksum = "4fb766fa798726286dbbb842f174001dab8abc7b627a1dd86e0b7222a95d929f"
 dependencies = [
  "cfg-if",
 ]
@@ -1562,9 +1556,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.9.1"
+version = "1.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
+checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -1634,9 +1628,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.137"
+version = "0.2.138"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
+checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
 [[package]]
 name = "libloading"
@@ -1834,9 +1828,9 @@ dependencies = [
 
 [[package]]
 name = "ndk-sys"
-version = "0.4.0"
+version = "0.4.1+23.1.7779620"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21d83ec9c63ec5bf950200a8e508bdad6659972187b625469f58ef8c08e29046"
+checksum = "3cf2aae958bd232cac5069850591667ad422d263686d75b52a065f9badeee5a3"
 dependencies = [
  "jni-sys",
 ]
@@ -1856,9 +1850,9 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.24.2"
+version = "0.24.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "195cdbc1741b8134346d515b3a56a1c94b0912758009cfd53f99ea0f57b065fc"
+checksum = "fa52e972a9a719cecb6864fb88568781eb706bac2cd1d4f04a648542dbf78069"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -1866,6 +1860,19 @@ dependencies = [
  "memoffset",
 ]
 
+[[package]]
+name = "nix"
+version = "0.25.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f346ff70e7dbfd675fe90590b92d59ef2de15a8779ae305ebcbfd3f0caf59be4"
+dependencies = [
+ "autocfg",
+ "bitflags",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "nohash-hasher"
 version = "0.2.0"
@@ -2043,9 +2050,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.4"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4dc9e0dc2adc1c69d09143aff38d3d30c5c3f0df0dad82e6d25547af174ebec0"
+checksum = "7ff9f3fef3968a3ec5945535ed654cb38ff72d7495a25619e2247fb15a2ed9ba"
 dependencies = [
  "cfg-if",
  "libc",
@@ -2088,7 +2095,6 @@ version = "0.3.1"
 dependencies = [
  "bevy",
  "crossbeam-channel",
- "postcard",
  "rand",
  "serde",
 ]
@@ -2105,16 +2111,6 @@ dependencies = [
  "miniz_oxide 0.3.7",
 ]
 
-[[package]]
-name = "postcard"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c2b180dc0bade59f03fd005cb967d3f1e5f69b13922dad0cd6e047cb8af2363"
-dependencies = [
- "cobs",
- "serde",
-]
-
 [[package]]
 name = "pp-rs"
 version = "0.2.1"
@@ -2309,18 +2305,18 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "serde"
-version = "1.0.147"
+version = "1.0.148"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
+checksum = "e53f64bb4ba0191d6d0676e1b141ca55047d83b74f5607e6d8eb88126c52c2dc"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.147"
+version = "1.0.148"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
+checksum = "a55492425aa53521babf6137309e7d34c20bbfbbfcfe2c7f3a047fd1f6b92c0c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2329,9 +2325,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.87"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ce777b7b150d76b9cf60d28b55f5847135a003f7d7350c6be7a773508ce7d45"
+checksum = "020ff22c755c2ed3f8cf162dbb41a7268d934702f3ed3631656ea597e08fc3db"
 dependencies = [
  "itoa",
  "ryu",
@@ -2386,7 +2382,7 @@ dependencies = [
  "lazy_static",
  "log",
  "memmap2",
- "nix 0.24.2",
+ "nix 0.24.3",
  "pkg-config",
  "wayland-client",
  "wayland-cursor",
@@ -2429,9 +2425,9 @@ checksum = "8fb1df15f412ee2e9dfc1c504260fa695c1c3f10fe9f4a6ee2d2184d7d6450e2"
 
 [[package]]
 name = "syn"
-version = "1.0.103"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
+checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2624,9 +2620,9 @@ checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
 
 [[package]]
 name = "uuid"
-version = "1.2.1"
+version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "feb41e78f93363bb2df8b0e86a2ca30eed7806ea16ea0c790d757cf93f79be83"
+checksum = "422ee0de9031b5b948b97a8fc04e3aa35230001a722ddd27943e0be31564ce4c"
 dependencies = [
  "getrandom",
  "serde",
@@ -2737,7 +2733,7 @@ dependencies = [
  "bitflags",
  "downcast-rs",
  "libc",
- "nix 0.24.2",
+ "nix 0.24.3",
  "scoped-tls",
  "wayland-commons",
  "wayland-scanner",
@@ -2750,7 +2746,7 @@ version = "0.29.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8691f134d584a33a6606d9d717b95c4fa20065605f798a3f350d78dced02a902"
 dependencies = [
- "nix 0.24.2",
+ "nix 0.24.3",
  "once_cell",
  "smallvec",
  "wayland-sys",
@@ -2762,7 +2758,7 @@ version = "0.29.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6865c6b66f13d6257bef1cd40cbfe8ef2f150fb8ebbdb1e8e873455931377661"
 dependencies = [
- "nix 0.24.2",
+ "nix 0.24.3",
  "wayland-client",
  "xcursor",
 ]
@@ -2818,9 +2814,9 @@ checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
 
 [[package]]
 name = "wgpu"
-version = "0.14.0"
+version = "0.14.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2272b17bffc8a0c7d53897435da7c1db587c87d3a14e8dae9cdb8d1d210fc0f"
+checksum = "81f643110d228fd62a60c5ed2ab56c4d5b3704520bd50561174ec4ec74932937"
 dependencies = [
  "arrayvec",
  "js-sys",
@@ -2840,9 +2836,9 @@ dependencies = [
 
 [[package]]
 name = "wgpu-core"
-version = "0.14.0"
+version = "0.14.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73d14cad393054caf992ee02b7da6a372245d39a484f7461c1f44f6f6359bd28"
+checksum = "6000d1284ef8eec6076fd5544a73125fd7eb9b635f18dceeb829d826f41724ca"
 dependencies = [
  "arrayvec",
  "bit-vec",
@@ -3097,9 +3093,9 @@ dependencies = [
 
 [[package]]
 name = "x11-dl"
-version = "2.20.0"
+version = "2.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c83627bc137605acc00bb399c7b908ef460b621fc37c953db2b09f88c449ea6"
+checksum = "b1536d6965a5d4e573c7ef73a2c15ebcd0b2de3347bdf526c34c297c00ac40f0"
 dependencies = [
  "lazy_static",
  "libc",
diff --git a/Cargo.toml b/Cargo.toml
index b2d2014..38d90fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,7 @@ path = "planet"
 default-features = false
 
 [dependencies.bevy]
-version = "0.9.0"
+version = "0.9"
 default-features = false
 
 [dependencies.fxhash]
diff --git a/planet/Cargo.toml b/planet/Cargo.toml
index 8049a7e..26f3223 100644
--- a/planet/Cargo.toml
+++ b/planet/Cargo.toml
@@ -23,11 +23,6 @@ version = "1.0"
 default-features = false
 features = ["derive"]
 
-[dependencies.postcard]
-version = "1.0.2"
-default-features = false
-features = ["use-std"]
-
 [dependencies.crossbeam-channel]
 version = "0.5.6"
 default-features = false
diff --git a/planet/src/human_group.rs b/planet/src/human_group.rs
index c4f9898..2745b02 100644
--- a/planet/src/human_group.rs
+++ b/planet/src/human_group.rs
@@ -1,6 +1,6 @@
 use serde::{Deserialize, Serialize};
 
-#[derive(Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
 pub struct HumanGroup {
     pub id:         u32,
     pub population: u32,
diff --git a/planet/src/lib.rs b/planet/src/lib.rs
index 15dfbb0..a27167a 100644
--- a/planet/src/lib.rs
+++ b/planet/src/lib.rs
@@ -1,6 +1,9 @@
 pub mod human_group;
+pub use human_group::HumanGroup;
+pub mod terrain_cell;
+pub use terrain_cell::TerrainCell;
 pub mod world;
-pub use world::{TerrainCell, World, WorldGenError};
+pub use world::{World, WorldGenError};
 pub mod biome;
 pub use biome::{BiomeStats, BiomeType};
 pub mod world_manager;
diff --git a/planet/src/perlin.rs b/planet/src/perlin.rs
index 048826c..0948f46 100644
--- a/planet/src/perlin.rs
+++ b/planet/src/perlin.rs
@@ -1,3 +1,5 @@
+pub const MAX_PERMUTATION_VALUE: u32 = 16777216;
+
 const PERMUTATION: [u8; 512] = [
     151, 160, 137, 91, 90, 15, 131, 13, 201, 95, 96, 53, 194, 233, 7, 225, 140, 36, 103, 30, 69,
     142, 8, 99, 37, 240, 21, 10, 23, 190, 6, 148, 247, 120, 234, 75, 0, 26, 197, 62, 94, 252, 219,
diff --git a/planet/src/saving/terrain_cell.rs b/planet/src/saving/terrain_cell.rs
new file mode 100644
index 0000000..cdfc722
--- /dev/null
+++ b/planet/src/saving/terrain_cell.rs
@@ -0,0 +1,148 @@
+use {
+    crate::TerrainCell,
+    bevy::prelude::default,
+    serde::{
+        de::{Error, MapAccess, SeqAccess, Visitor},
+        Deserialize,
+    },
+    std::{
+        fmt::{self, Formatter},
+        sync::Weak,
+    },
+};
+
+impl<'de> Deserialize<'de> for TerrainCell {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        #[derive(Deserialize)]
+        #[serde(field_identifier, rename_all = "snake_case")]
+        enum Field {
+            Altitude,
+            Rainfall,
+            Temperature,
+            LocalIteration,
+            BiomePresences,
+        }
+
+        struct TerrainCellVisitor;
+
+        impl<'de> Visitor<'de> for TerrainCellVisitor {
+            type Value = TerrainCell;
+
+            fn expecting(&self, formatter: &mut Formatter) -> fmt::Result {
+                formatter.write_str("struct TerrainCell")
+            }
+
+            fn visit_seq<V>(self, mut seq: V) -> Result<Self::Value, V::Error>
+            where
+                V: SeqAccess<'de>,
+            {
+                let altitude = seq
+                    .next_element()?
+                    .ok_or_else(|| Error::invalid_length(0, &self))?;
+
+                let rainfall = seq
+                    .next_element()?
+                    .ok_or_else(|| Error::invalid_length(1, &self))?;
+
+                let temperature = seq
+                    .next_element()?
+                    .ok_or_else(|| Error::invalid_length(2, &self))?;
+
+                let local_iteration = seq
+                    .next_element()?
+                    .ok_or_else(|| Error::invalid_length(3, &self))?;
+
+                let biome_presences = seq
+                    .next_element()?
+                    .ok_or_else(|| Error::invalid_length(4, &self))?;
+
+                Ok(TerrainCell {
+                    altitude,
+                    rainfall,
+                    temperature,
+                    local_iteration,
+                    biome_presences,
+                    x: default(),
+                    y: default(),
+                })
+            }
+
+            fn visit_map<V>(self, mut map: V) -> Result<Self::Value, V::Error>
+            where
+                V: MapAccess<'de>,
+            {
+                let mut altitude = None;
+                let mut rainfall = None;
+                let mut temperature = None;
+                let mut local_iteration = None;
+                let mut biome_presences = None;
+
+                while let Some(key) = map.next_key()? {
+                    match key {
+                        Field::Altitude => {
+                            if altitude.is_some() {
+                                return Err(Error::duplicate_field("altitude"));
+                            }
+                            altitude = Some(map.next_value()?);
+                        },
+                        Field::Rainfall => {
+                            if rainfall.is_some() {
+                                return Err(Error::duplicate_field("rainfall"));
+                            }
+                            rainfall = Some(map.next_value()?);
+                        },
+                        Field::Temperature => {
+                            if temperature.is_some() {
+                                return Err(Error::duplicate_field("temperature"));
+                            }
+                            temperature = Some(map.next_value()?);
+                        },
+                        Field::LocalIteration => {
+                            if local_iteration.is_some() {
+                                return Err(Error::duplicate_field("local_iteration"));
+                            }
+                            local_iteration = Some(map.next_value()?);
+                        },
+                        Field::BiomePresences => {
+                            if biome_presences.is_some() {
+                                return Err(Error::duplicate_field("biome_presences"));
+                            }
+                            biome_presences = Some(map.next_value()?);
+                        },
+                    }
+                }
+
+                let altitude = altitude.ok_or_else(|| Error::missing_field("altitude"))?;
+                let rainfall = rainfall.ok_or_else(|| Error::missing_field("rainfall"))?;
+                let temperature = temperature.ok_or_else(|| Error::missing_field("temperature"))?;
+                let local_iteration =
+                    local_iteration.ok_or_else(|| Error::missing_field("local_iteration"))?;
+                let biome_presences =
+                    biome_presences.ok_or_else(|| Error::missing_field("biome_presences"))?;
+
+                Ok(TerrainCell {
+                    altitude,
+                    rainfall,
+                    temperature,
+                    local_iteration,
+                    biome_presences,
+                    x: default(),
+                    y: default(),
+                })
+            }
+        }
+
+        const FIELDS: &'static [&'static str] = &[
+            "altitude",
+            "rainfall",
+            "temperature",
+            "local_iteration",
+            "biome_presences",
+        ];
+
+        deserializer.deserialize_struct("TerrainCell", FIELDS, TerrainCellVisitor)
+    }
+}
diff --git a/planet/src/terrain_cell.rs b/planet/src/terrain_cell.rs
new file mode 100644
index 0000000..bb5ffee
--- /dev/null
+++ b/planet/src/terrain_cell.rs
@@ -0,0 +1,50 @@
+use {
+    crate::{perlin, BiomeType, HumanGroup, World},
+    serde::{Deserialize, Serialize},
+};
+
+#[derive(Debug, Clone, Default, Deserialize, Serialize)]
+pub struct TerrainCell {
+    pub altitude:    f32,
+    pub rainfall:    f32,
+    pub temperature: f32,
+
+    #[serde(skip)]
+    pub x:               usize,
+    #[serde(skip)]
+    pub y:               usize,
+    pub local_iteration: usize,
+
+    pub biome_presences: Vec<(BiomeType, f32)>,
+    pub human_groups:    Vec<HumanGroup>,
+}
+
+impl TerrainCell {
+    pub fn get_next_local_random_int(&mut self, world: &World) -> u32 {
+        let seed = world.seed;
+
+        let x = seed as f32 + self.x as f32;
+        let y = seed as f32 + self.y as f32;
+        let z = seed as f32 + world.iteration as f32 + (self.local_iteration - 1) as f32;
+
+        self.local_iteration += 1;
+
+        perlin::permutation_value(x, y, z)
+    }
+
+    pub fn get_next_local_random_float(&mut self, world: &World) -> f32 {
+        self.get_next_local_random_int(world) as f32 / perlin::MAX_PERMUTATION_VALUE as f32
+    }
+
+    pub fn biome_presence(&self, biome: BiomeType) -> f32 {
+        if let Some(presence) = self
+            .biome_presences
+            .iter()
+            .find(|biome_presence| biome_presence.0 == biome)
+        {
+            presence.1
+        } else {
+            0.0
+        }
+    }
+}
diff --git a/planet/src/world.rs b/planet/src/world.rs
index f66518a..0a7759e 100644
--- a/planet/src/world.rs
+++ b/planet/src/world.rs
@@ -10,6 +10,7 @@ use {
         perlin,
         BiomeStats,
         BiomeType,
+        TerrainCell,
     },
     bevy::{
         log::info,
@@ -92,38 +93,10 @@ pub struct World {
     pub iteration:         usize,
 }
 
-#[derive(Debug, Clone, Default, Deserialize, Serialize)]
-pub struct TerrainCell {
-    pub altitude:    f32,
-    pub rainfall:    f32,
-    pub temperature: f32,
-
-    #[serde(skip)]
-    pub x:               usize,
-    #[serde(skip)]
-    pub y:               usize,
-    pub local_iteration: usize,
-
-    pub biome_presences: Vec<(BiomeType, f32)>,
-}
-
-impl TerrainCell {
-    pub fn get_next_local_random_int(&mut self, world: &World) -> f32 {
-        let seed = world.seed;
-
-        let x = seed as f32 + self.x as f32;
-        let y = seed as f32 + self.y as f32;
-        let z = seed as f32 + world.iteration as f32 + (self.local_iteration - 1) as f32;
-
-        drop(world);
-        self.local_iteration += 1;
-
-        perlin::perlin_value(x, y, z)
-    }
-}
-
 impl World {
     pub const ALTITUDE_SPAN: f32 = World::MAX_ALTITUDE - World::MIN_ALTITUDE;
+    /// Circumference - in kilometers
+    pub const CIRCUMFERENCE: u32 = 40075;
     pub const CONTINENT_MAX_SIZE_FACTOR: f32 = 8.7;
     pub const CONTINENT_MIN_SIZE_FACTOR: f32 = 5.7;
     pub const MAX_ALTITUDE: f32 = 15000.0;
@@ -139,6 +112,12 @@ impl World {
     pub const TEMPERATURE_ALTITUDE_FACTOR: f32 = 2.05;
     pub const TEMPERATURE_SPAN: f32 = World::MAX_TEMPERATURE - World::MIN_TEMPERATURE;
 
+    #[must_use]
+    #[inline(always)]
+    pub fn cell_max_widht(&self) -> f32 {
+        self.width as f32 / World::CIRCUMFERENCE as f32
+    }
+
     pub fn new(width: u32, height: u32, seed: u32) -> World {
         World {
             width,
diff --git a/src/planet_renderer.rs b/src/planet_renderer.rs
index d489e8e..cb0a5ec 100644
--- a/src/planet_renderer.rs
+++ b/src/planet_renderer.rs
@@ -5,13 +5,20 @@ use {
 };
 
 iterable_enum_stringify!(WorldView {
+    Population,
     Biomes,
     Topography,
-    Coastlines
+    Coastlines,
 });
+impl Default for WorldView {
+    fn default() -> Self {
+        WorldView::Population
+    }
+}
+
 iterable_enum_stringify!(WorldOverlay {
     Temperature,
-    Rainfall
+    Rainfall,
 });
 
 #[cfg(feature = "render")]
@@ -32,18 +39,54 @@ impl WorldRenderSettings {
     pub fn toggle_overlay(&mut self, overlay: &WorldOverlay) {
         if self.visible_overlays.contains(overlay) {
             assert!(
-                self.visible_overlays.remove(overlay),
-                "Failed to remove overlay [{overlay:#?}], that shouldn't happen."
+                    self.visible_overlays.remove(overlay),
+            "Failed to remove overlay [{overlay:#?}], that shouldn't happen."
             );
         } else {
             assert!(
-                self.visible_overlays.insert(*overlay),
-                "Failed to insert overlay [{overlay:#?}], that shouldn't happen."
+                    self.visible_overlays.insert(*overlay),
+            "Failed to insert overlay [{overlay:#?}], that shouldn't happen."
             );
         }
     }
 }
 
+#[must_use]
+fn population_color(world: &World, cell: &TerrainCell) -> Color {
+    let slant = world.get_slant(cell);
+    let altitude_difference = world.max_altitude - world.min_altitude;
+
+    let slant_factor = f32::min(1.0, (4.0 + (10.0 * slant / altitude_difference)) / 5.0);
+
+    let altitude_factor = f32::min(1.0, (0.5 + ((cell.altitude - altitude_difference) / altitude_difference)) / 1.5);
+
+    let mut total_population = 0;
+
+    for human_group in cell.human_groups {
+        total_population += human_group.population;
+    }
+
+    let color = if total_population > 0 {
+        Color::GREEN
+    } else {
+        let color = biome_color(world, cell);
+
+        let greyscale = (color.r() + color.g() + color.b()) / 4.5 + 0.25;
+
+        color.set_r(greyscale);
+        color.set_g(greyscale);
+        color.set_b(greyscale);
+
+        color
+    };
+
+    let r = color.r() * slant_factor * altitude_factor;
+    let g = color.g() * slant_factor * altitude_factor;
+    let b = color.b() * slant_factor * altitude_factor;
+
+    Color::rgb(r, g, b)
+}
+
 #[must_use]
 fn altitude_contour_color(world: &World, altitude: f32) -> Color {
     let mut color = Color::rgb(1.0, 0.6, 0.0);
@@ -286,9 +329,3 @@ impl WorldRenderer {
         Color::rgb(red / normalizer, green / normalizer, blue / normalizer)
     }
 }
-
-impl Default for WorldView {
-    fn default() -> Self {
-        WorldView::Biomes
-    }
-}