Merge branch 'crabman/map_tweaks' into 'master'

Map tweaks & new default map

See merge request veloren/veloren!4383

CHANGELOG.md

@@ -105,6 +105,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Dropped items now merge dynamically (including non-stackables).
 - You no longer need to unlock health, energy and roll skills to get to max.
 - Rolls now don't skip recovery, and instead have increased buildup during ability interrupts.
+- Changed default world map
 
 ### Removed
 

common/src/terrain/biome.rs

@@ -17,3 +17,37 @@ pub enum BiomeKind {
     Savannah,
     Taiga,
 }
+
+impl BiomeKind {
+    /// Roughly represents the difficulty of a biome (value between 1 and 5)
+    pub fn difficulty(&self) -> i32 {
+        match self {
+            BiomeKind::Void => 1,
+            BiomeKind::Lake => 1,
+            BiomeKind::Grassland => 2,
+            BiomeKind::Ocean => 1,
+            BiomeKind::Mountain => 1,
+            BiomeKind::Snowland => 2,
+            BiomeKind::Desert => 5,
+            BiomeKind::Swamp => 2,
+            BiomeKind::Jungle => 3,
+            BiomeKind::Forest => 1,
+            BiomeKind::Savannah => 2,
+            BiomeKind::Taiga => 2,
+        }
+    }
+}
+
+#[cfg(test)]
+#[test]
+fn test_biome_difficulty() {
+    use strum::IntoEnumIterator;
+
+    for biome_kind in BiomeKind::iter() {
+        assert!(
+            (1..=5).contains(&biome_kind.difficulty()),
+            "Biome {biome_kind:?} has invalid difficulty {}",
+            biome_kind.difficulty()
+        );
+    }
+}

rtsim/src/gen/mod.rs

@@ -316,17 +316,7 @@ impl Data {
         // Try a few times to find a location that's not underwater
         if let Some((wpos, chunk)) = (0..100)
             .map(|_| world.sim().get_size().map(|sz| rng.gen_range(0..sz as i32)))
-            .find_map(|pos| {
+            .find_map(|pos| Some((pos, world.sim().get(pos).filter(|c| !c.is_underwater())?)))
-                Some((
-                    pos,
-                    world
-                        .sim()
-                        .get(pos)
-                // This is currently a workaround to force Frost Gigas spawning in cold areas
-                // TODO: Once more Gigas are implemented remove this
-                        .filter(|c| !c.is_underwater() && c.temp < CONFIG.snow_temp)?,
-                ))
-            })
             .map(|(pos, chunk)| {
                 let wpos2d = pos.cpos_to_wpos_center();
                 (

server/src/lib.rs

@@ -146,7 +146,7 @@ use crate::{chat::ChatCache, persistence::character_loader::CharacterScreenRespo
 use common::comp::Anchor;
 #[cfg(feature = "worldgen")]
 pub use world::{
-    sim::{FileOpts, GenOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, GenOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     IndexOwned, World,
 };
 

server/src/settings.rs

@@ -30,11 +30,10 @@ use std::{
     path::{Path, PathBuf},
 };
 use tracing::{error, warn};
-use world::sim::FileOpts;
+use world::sim::{FileOpts, DEFAULT_WORLD_SEED};
 
 use self::server_description::ServerDescription;
 
-const DEFAULT_WORLD_SEED: u32 = 230;
 const CONFIG_DIR: &str = "server_config";
 const SETTINGS_FILENAME: &str = "settings.ron";
 const WHITELIST_FILENAME: &str = "whitelist.ron";

voxygen/benches/meshing_benchmark.rs

@@ -15,7 +15,7 @@ pub fn criterion_benchmark(c: &mut Criterion) {
     let pool = rayon::ThreadPoolBuilder::new().build().unwrap();
     // Generate chunks here to test
     let (world, index) = World::generate(
-        42,
+        sim::DEFAULT_WORLD_SEED,
         sim::WorldOpts {
             // NOTE: If this gets too expensive, we can turn it off.
             // TODO: Consider an option to turn off all erosion as well, or even provide altitude

voxygen/src/menu/char_selection/ui/mod.rs

@@ -32,6 +32,7 @@ use common::{
 };
 use common_net::msg::world_msg::{SiteId, SiteInfo};
 use i18n::{Localization, LocalizationHandle};
+use rand::{thread_rng, Rng};
 //ImageFrame, Tooltip,
 use crate::settings::Settings;
 //use std::time::Duration;
@@ -194,7 +195,7 @@ enum Mode {
         /// mode as opposed to create mode.
         // TODO: Something less janky? Express the problem domain better!
         character_id: Option<CharacterId>,
-        start_site_idx: usize,
+        start_site_idx: Option<usize>,
     },
 }
 
@@ -248,7 +249,7 @@ impl Mode {
             prev_starting_site_button: Default::default(),
             next_starting_site_button: Default::default(),
             character_id: None,
-            start_site_idx: 0,
+            start_site_idx: None,
         }
     }
 
@@ -278,7 +279,7 @@ impl Mode {
             prev_starting_site_button: Default::default(),
             next_starting_site_button: Default::default(),
             character_id: Some(character_id),
-            start_site_idx: 0,
+            start_site_idx: None,
         }
     }
 }
@@ -1362,10 +1363,12 @@ impl Controls {
                     //TODO: Add text-outline here whenever we updated iced to a version supporting
                     // this
 
-                    let map = if let Some(info) = self.possible_starting_sites.get(*start_site_idx)
+                    let map = if let Some(info) = self
+                        .possible_starting_sites
+                        .get(start_site_idx.unwrap_or_default())
                     {
                         let site_name = Text::new(
-                            self.possible_starting_sites[*start_site_idx]
+                            self.possible_starting_sites[start_site_idx.unwrap_or_default()]
                                 .name
                                 .as_deref()
                                 .unwrap_or("Unknown"),
@@ -1405,12 +1408,16 @@ impl Controls {
                     if self.possible_starting_sites.is_empty() {
                         vec![map]
                     } else {
+                        let selected = start_site_idx.get_or_insert_with(|| {
+                            thread_rng().gen_range(0..self.possible_starting_sites.len())
+                        });
+
                         let site_slider = starter_slider(
                             i18n.get_msg("char_selection-starting_site").into_owned(),
                             30,
                             &mut sliders.starting_site,
                             self.possible_starting_sites.len() as u32 - 1,
-                            *start_site_idx as u32,
+                            *selected as u32,
                             |x| Message::StartingSite(x as usize),
                             imgs,
                         );
@@ -1801,7 +1808,7 @@ impl Controls {
                         body: comp::Body::Humanoid(*body),
                         start_site: self
                             .possible_starting_sites
-                            .get(*start_site_idx)
+                            .get(start_site_idx.unwrap_or_default())
                             .map(|info| info.id),
                     });
                     self.mode = Mode::select(Some(InfoContent::CreatingCharacter));
@@ -1863,7 +1870,6 @@ impl Controls {
             //Todo: Add species and body type to randomization.
             Message::RandomizeCharacter => {
                 if let Mode::CreateOrEdit { body, .. } = &mut self.mode {
-                    use rand::Rng;
                     let body_type = body.body_type;
                     let species = body.species;
                     let mut rng = rand::thread_rng();
@@ -1930,24 +1936,30 @@ impl Controls {
             },
             Message::StartingSite(idx) => {
                 if let Mode::CreateOrEdit { start_site_idx, .. } = &mut self.mode {
-                    *start_site_idx = idx;
+                    *start_site_idx = Some(idx);
                 }
             },
             Message::PrevStartingSite => {
                 if let Mode::CreateOrEdit { start_site_idx, .. } = &mut self.mode {
                     if !self.possible_starting_sites.is_empty() {
-                        *start_site_idx = (*start_site_idx + self.possible_starting_sites.len()
+                        *start_site_idx = Some(
+                            (start_site_idx.unwrap_or_default()
+                                + self.possible_starting_sites.len()
                                 - 1)
-                            % self.possible_starting_sites.len();
+                                % self.possible_starting_sites.len(),
+                        );
                     }
                 }
             },
             Message::NextStartingSite => {
                 if let Mode::CreateOrEdit { start_site_idx, .. } = &mut self.mode {
                     if !self.possible_starting_sites.is_empty() {
-                        *start_site_idx =
+                        *start_site_idx = Some(
-                            (*start_site_idx + self.possible_starting_sites.len() + 1)
+                            (start_site_idx.unwrap_or_default()
-                                % self.possible_starting_sites.len();
+                                + self.possible_starting_sites.len()
+                                + 1)
+                                % self.possible_starting_sites.len(),
+                        );
                     }
                 }
             },

voxygen/src/singleplayer/singleplayer_world.rs

@@ -6,7 +6,7 @@ use std::{
 
 use common::{assets::ASSETS_PATH, consts::DAY_LENGTH_DEFAULT};
 use serde::{Deserialize, Serialize};
-use server::{FileOpts, GenOpts, DEFAULT_WORLD_MAP};
+use server::{FileOpts, GenOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED};
 use tracing::error;
 
 #[derive(Clone, Deserialize, Serialize)]
@@ -84,7 +84,7 @@ fn migrate_old_singleplayer(from: &Path, to: &Path) {
             return;
         }
 
-        let mut seed = 0;
+        let mut seed = DEFAULT_WORLD_SEED;
         let mut day_length = DAY_LENGTH_DEFAULT;
         let (map_file, gen_opts) = fs::read_to_string(to.join("server_config/settings.ron"))
             .ok()
@@ -238,7 +238,7 @@ impl SingleplayerWorlds {
             name: "New World".to_string(),
             gen_opts: None,
             day_length: DAY_LENGTH_DEFAULT,
-            seed: 0,
+            seed: DEFAULT_WORLD_SEED,
             is_generated: false,
             map_path: path.join("map.bin"),
             path,

world/benches/cave.rs

@@ -3,14 +3,14 @@ use criterion::{black_box, criterion_group, criterion_main, Criterion};
 use rayon::ThreadPoolBuilder;
 use veloren_world::{
     layer,
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     CanvasInfo, Land, World,
 };
 
 fn cave(c: &mut Criterion) {
     let pool = ThreadPoolBuilder::new().build().unwrap();
     let (world, index) = World::generate(
-        230,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/cave_biomes.rs

@@ -6,14 +6,14 @@ use veloren_world::{
         self,
         cave::{Biome, LAYERS},
     },
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     CanvasInfo, Land, World,
 };
 
 fn main() {
     let pool = ThreadPoolBuilder::new().build().unwrap();
     let (world, index) = World::generate(
-        230,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/chunk_compression_benchmarks.rs

@@ -29,7 +29,7 @@ use tracing::{debug, trace};
 use vek::*;
 use veloren_world::{
     civ::SiteKind,
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     World,
 };
 
@@ -682,7 +682,7 @@ fn main() {
     common_frontend::init_stdout(None);
     println!("Loading world");
     let (world, index) = World::generate(
-        59686,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/dungeon_voxel_export.rs

@@ -12,7 +12,7 @@ use common::{
 use rayon::ThreadPoolBuilder;
 use vek::{Vec2, Vec3};
 use veloren_world::{
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     site2::{plot::PlotKind, Fill, Structure},
     CanvasInfo, Land, World,
 };
@@ -25,7 +25,7 @@ fn main() -> Result {
     let pool = ThreadPoolBuilder::new().build().unwrap();
     println!("Loading world");
     let (world, index) = World::generate(
-        59686,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/heightmap_visualization.rs

@@ -6,7 +6,7 @@ use rayon::ThreadPoolBuilder;
 use std::{fs::File, io::Write};
 use vek::*;
 use veloren_world::{
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     Land, World,
 };
 
@@ -120,7 +120,7 @@ fn main() {
     let pool = ThreadPoolBuilder::new().build().unwrap();
     println!("Loading world");
     let (world, _index) = World::generate(
-        59686,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/pricing_csv.rs

@@ -9,7 +9,7 @@ use strum::IntoEnumIterator;
 use vek::Vec2;
 use veloren_world::{
     index::Index,
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     World,
 };
 
@@ -162,7 +162,7 @@ fn main() {
     println!("Loading world");
     let pool = ThreadPoolBuilder::new().build().unwrap();
     let (world, index) = World::generate(
-        59686,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/water.rs

@@ -15,7 +15,7 @@ use tracing_subscriber::{
 };
 use vek::*;
 use veloren_world::{
-    sim::{self, get_horizon_map, sample_pos, sample_wpos, WorldOpts},
+    sim::{self, get_horizon_map, sample_pos, sample_wpos, WorldOpts, DEFAULT_WORLD_SEED},
     util::Sampler,
     ColumnSample, World, CONFIG,
 };
@@ -43,7 +43,7 @@ fn main() {
     _map_file.push(map_file);
 
     let (world, index) = World::generate(
-        5284,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: false,
             world_file: sim::FileOpts::LoadAsset(sim::DEFAULT_WORLD_MAP.into()),

world/examples/world_block_statistics.rs

@@ -21,7 +21,7 @@ use std::{
 };
 use vek::*;
 use veloren_world::{
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     World,
 };
 
@@ -63,7 +63,7 @@ fn generate(db_path: &str, ymin: Option<i32>, ymax: Option<i32>) -> Result<(), B
     println!("Loading world");
     let pool = ThreadPoolBuilder::new().build().unwrap();
     let (world, index) = World::generate(
-        59686,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             world_file: FileOpts::LoadAsset(DEFAULT_WORLD_MAP.into()),

world/examples/world_generate_time.rs

@@ -1,6 +1,6 @@
 use std::time::Instant;
 use veloren_world::{
-    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
+    sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP, DEFAULT_WORLD_SEED},
     World,
 };
 
@@ -9,7 +9,7 @@ fn main() {
 
     let start = Instant::now();
     let (world, index) = World::generate(
-        0,
+        DEFAULT_WORLD_SEED,
         WorldOpts {
             seed_elements: true,
             // Load default map from assets.

world/src/civ/mod.rs

@@ -278,7 +278,7 @@ impl Civs {
         let world_dims = ctx.sim.get_aabr();
         for _ in 0..initial_civ_count * 3 {
             attempt(5, || {
-                let (loc, kind) = match ctx.rng.gen_range(0..115) {
+                let (loc, kind) = match ctx.rng.gen_range(0..90) {
                     0..=4 => {
                         if index.features().site2_giant_trees {
                             (
@@ -304,7 +304,7 @@ impl Civs {
                             )
                         }
                     },
-                    5..=10 => (
+                    5..=15 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -314,7 +314,7 @@ impl Civs {
                         )?,
                         SiteKind::Gnarling,
                     ),
-                    11..=16 => (
+                    16..=20 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -324,7 +324,7 @@ impl Civs {
                         )?,
                         SiteKind::ChapelSite,
                     ),
-                    17..=22 => (
+                    21..=27 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -334,7 +334,7 @@ impl Civs {
                         )?,
                         SiteKind::Adlet,
                     ),
-                    23..=35 => (
+                    28..=38 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -344,7 +344,7 @@ impl Civs {
                         )?,
                         SiteKind::PirateHideout,
                     ),
-                    36..=42 => (
+                    39..=45 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -354,7 +354,7 @@ impl Civs {
                         )?,
                         SiteKind::JungleRuin,
                     ),
-                    43..=49 => (
+                    46..=55 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -364,7 +364,7 @@ impl Civs {
                         )?,
                         SiteKind::RockCircle,
                     ),
-                    50..=59 => (
+                    56..=66 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -374,7 +374,7 @@ impl Civs {
                         )?,
                         SiteKind::TrollCave,
                     ),
-                    60..=69 => (
+                    67..=72 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -384,7 +384,7 @@ impl Civs {
                         )?,
                         SiteKind::Camp,
                     ),
-                    70..=74 => (
+                    73..=76 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -394,7 +394,7 @@ impl Civs {
                         )?,
                         SiteKind::Haniwa,
                     ),
-                    75..=85 => (
+                    77..=79 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -404,7 +404,7 @@ impl Civs {
                         )?,
                         SiteKind::Terracotta,
                     ),
-                    /*86..=91 => (
+                    /*80..=86 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -414,7 +414,7 @@ impl Civs {
                         )?,
                         SiteKind::DwarvenMine,
                     ),
-                    92..=97 => (
+                    86..=97 => (
                         find_site_loc(
                             &mut ctx,
                             &ProximityRequirementsBuilder::new()
@@ -945,10 +945,10 @@ impl Civs {
     fn birth_civ(&mut self, ctx: &mut GenCtx<impl Rng>) -> Option<Id<Civ>> {
         // TODO: specify SiteKind based on where a suitable location is found
         let kind = match ctx.rng.gen_range(0..64) {
-            0..=10 => SiteKind::CliffTown,
+            0..=8 => SiteKind::CliffTown,
-            11..=12 => SiteKind::DesertCity,
+            9..=17 => SiteKind::DesertCity,
-            13..=18 => SiteKind::SavannahPit,
+            18..=23 => SiteKind::SavannahPit,
-            19..=36 => SiteKind::CoastalTown,
+            24..=33 => SiteKind::CoastalTown,
             _ => SiteKind::Refactor,
         };
         let world_dims = ctx.sim.get_aabr();
@@ -1558,11 +1558,7 @@ impl Civs {
     }
 
     fn tree_enemies(&self) -> impl Iterator<Item = Vec2<i32>> + '_ {
-        self.sites().filter_map(|s| match s.kind {
+        self.sites().map(|s| s.center)
-            SiteKind::Castle => Some(s.center),
-            _ if s.is_settlement() => Some(s.center),
-            _ => None,
-        })
     }
 
     fn castle_enemies(&self) -> impl Iterator<Item = Vec2<i32>> + '_ {

world/src/lib.rs

@@ -36,7 +36,7 @@ pub use block::BlockGen;
 use civ::WorldCivStage;
 pub use column::ColumnSample;
 pub use common::terrain::site::{DungeonKindMeta, SettlementKindMeta};
-use common::terrain::CoordinateConversions;
+use common::{spiral::Spiral2d, terrain::CoordinateConversions};
 pub use index::{IndexOwned, IndexRef};
 use sim::WorldSimStage;
 
@@ -249,7 +249,7 @@ impl World {
                         }))
                     .collect(),
                 possible_starting_sites: {
-                    const STARTING_SITE_COUNT: usize = 4;
+                    const STARTING_SITE_COUNT: usize = 5;
 
                     let mut candidates = self
                         .civs()
@@ -258,21 +258,55 @@ impl World {
                         .filter_map(|(_, civ_site)| Some((civ_site, civ_site.site_tmp?)))
                         .map(|(civ_site, site_id)| {
                             // Score the site according to how suitable it is to be a starting site
-                            let mut score = 0.0;
 
-                            if let SiteKind::Refactor(site2) = &index.sites[site_id].kind {
+                            let (site2, mut score) = match &index.sites[site_id].kind {
-                                // Strongly prefer towns
+                                SiteKind::Refactor(site2) => (site2, 2.0),
-                                score += 1000.0;
+                                // Non-town sites should not be chosen as starting sites and get a score of 0
-                                // Prefer sites of a medium size
+                                _ => return (site_id.id(), 0.0)
-                                score += 2.0 / (1.0 + (site2.plots().len() as f32 - 20.0).abs() / 10.0);
                             };
-                            // Prefer sites in hospitable climates
+
-                            if let Some(chunk) = self.sim().get(civ_site.center) {
+                            /// Optimal number of plots in a starter town
-                                score += 1.0 / (1.0 + chunk.temp.abs());
+                            const OPTIMAL_STARTER_TOWN_SIZE: f32 = 30.0;
-                                score += 1.0 / (1.0 + (chunk.humidity - CONFIG.forest_hum).abs() * 2.0);
+
-                            }
+                            // Prefer sites of a medium size
+                            let plots = site2.plots().len() as f32;
+                            let size_score = if plots > OPTIMAL_STARTER_TOWN_SIZE {
+                                1.0 + (1.0 / (1.0 + ((plots - OPTIMAL_STARTER_TOWN_SIZE) / 15.0).powi(3)))
+                            } else {
+                               (2.05 / (1.0 + ((OPTIMAL_STARTER_TOWN_SIZE - plots) / 15.0).powi(5))) - 0.05
+                            }.max(0.01);
+
+                            score *= size_score;
+
                             // Prefer sites that are close to the centre of the world
-                            score += 4.0 / (1.0 + civ_site.center.map2(self.sim().get_size(), |e, sz| (e as f32 / sz as f32 - 0.5).abs() * 2.0).reduce_partial_max());
+                            let pos_score = (
+                                10.0 / (
+                                    1.0 + (
+                                        civ_site.center.map2(self.sim().get_size(),
+                                            |e, sz|
+                                            (e as f32 / sz as f32 - 0.5).abs() * 2.0).reduce_partial_max()
+                                    ).powi(6) * 25.0
+                                )
+                            ).max(0.02);
+                            score *= pos_score;
+
+                            // Check if neighboring biomes are beginner friendly
+                            let mut chunk_scores = 2.0;
+                            for (chunk, distance) in Spiral2d::with_radius(10)
+                                .filter_map(|rel_pos| {
+                                    let chunk_pos = civ_site.center + rel_pos * 2;
+                                    self.sim().get(chunk_pos).zip(Some(rel_pos.as_::<f32>().magnitude()))
+                                })
+                            {
+                                let weight = 1.0 / (distance * std::f32::consts::TAU + 1.0);
+                                let chunk_difficulty = 20.0 / (20.0 + chunk.get_biome().difficulty().pow(4) as f32 / 5.0);
+                                // let chunk_difficulty = 1.0 / chunk.get_biome().difficulty() as f32;
+
+                                chunk_scores *= 1.0 - weight + chunk_difficulty * weight;
+                            }
+
+                            score *= chunk_scores;
+
                             (site_id.id(), score)
                         })
                         .collect::<Vec<_>>();

world/src/sim/mod.rs

@@ -560,7 +560,25 @@ pub type ModernMap = WorldMap_0_7_0;
 /// TODO: Consider using some naming convention to automatically change this
 /// with changing versions, or at least keep it in a constant somewhere that's
 /// easy to change.
-pub const DEFAULT_WORLD_MAP: &str = "world.map.veloren_0_9_0_0";
+// Generation parameters:
+//
+// gen_opts: (
+//     erosion_quality: 1.0,
+//     map_kind: Circle,
+//     scale: 2.098048498703866,
+//     x_lg: 10,
+//     y_lg: 10,
+// )
+// seed: 469876673
+//
+// The biome seed can found below
+pub const DEFAULT_WORLD_MAP: &str = "world.map.veloren_0_16_0_0";
+/// This is *not* the seed used to generate the default map, this seed was used
+/// to generate a better set of biomes on it as the original ones were
+/// unsuitable.
+///
+/// See DEFAULT_WORLD_MAP to get the original worldgen parameters.
+pub const DEFAULT_WORLD_SEED: u32 = 1948292704;
 
 impl WorldFileLegacy {
     #[inline]

world/src/site/economy/context.rs

@@ -336,7 +336,7 @@ mod tests {
         execute_with_tracing(Level::INFO, || {
             let threadpool = rayon::ThreadPoolBuilder::new().build().unwrap();
             info!("init");
-            let seed = 59686;
+            let seed = sim::DEFAULT_WORLD_SEED;
             let opts = sim::WorldOpts {
                 seed_elements: true,
                 world_file: sim::FileOpts::LoadAsset(sim::DEFAULT_WORLD_MAP.into()),
@@ -362,7 +362,7 @@ mod tests {
         execute_with_tracing(Level::INFO, || {
             let threadpool = rayon::ThreadPoolBuilder::new().build().unwrap();
             info!("init");
-            let seed = 59686;
+            let seed = sim::DEFAULT_WORLD_SEED;
             let opts = sim::WorldOpts {
                 seed_elements: true,
                 world_file: sim::FileOpts::LoadAsset(sim::DEFAULT_WORLD_MAP.into()),
@@ -502,7 +502,7 @@ mod tests {
         execute_with_tracing(Level::ERROR, || {
             let threadpool = rayon::ThreadPoolBuilder::new().build().unwrap();
             info!("init");
-            let seed = 59686;
+            let seed = sim::DEFAULT_WORLD_SEED;
             let opts = sim::WorldOpts {
                 seed_elements: true,
                 world_file: sim::FileOpts::LoadAsset(sim::DEFAULT_WORLD_MAP.into()),