Add Arctic map (#3341)

## Description:

Adds Arctic map, a map centered about the Geographical North Pole using
an azimuthal equidistant projection. Features Cold War themed countries
and subdivisions as nations. Square map with 1.6M land tiles. Terrain
data from Opentopography and Arctic SDI real relief data

<img width="1830" height="1830" alt="image"
src="https://github.com/user-attachments/assets/0b8b1e42-f477-4ebf-a256-c07536db87d9"
/>

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [x] I have added relevant tests to the test directory
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

tri.star1011

CREDITS.md

@@ -54,6 +54,11 @@ Licensed under [CC BY-SA 3.0 DE](https://creativecommons.org/licenses/by-sa/3.0/
 [Niledelta 33](https://commons.wikimedia.org/wiki/File:Niledelta_33.svg) by John187
 Licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
 
+### Arctic Map
+
+[Arctic SDI](https://catalogue.arctic-sdi.org/geonetwork/srv/spa/catalog.search#/metadata/8b4f2b34-2d0d-4744-ae0f-d7989b9f7a02)
+Licensed under [CC0 1.0.](https://creativecommons.org/publicdomain/zero/1.0/legalcode.en)
+
 ## Icons
 
 ### [The Noun Project](https://thenounproject.com/)

map-generator/assets/maps/arctic/info.json

@@ -0,0 +1,225 @@
+{
+  "name": "Arctic",
+  "nations": [
+    {
+      "coordinates": [622, 1171],
+      "name": "Greenland",
+      "flag": "gl"
+    },
+    {
+      "coordinates": [632, 1438],
+      "name": "Iceland",
+      "flag": "is"
+    },
+    {
+      "coordinates": [90, 1046],
+      "name": "Quebec",
+      "flag": "Quebec"
+    },
+    {
+      "coordinates": [747, 336],
+      "name": "Alaska",
+      "flag": "Alaska"
+    },
+    {
+      "coordinates": [485, 927],
+      "name": "Nunavut",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [432, 550],
+      "name": "Northwest Territories",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [608, 447],
+      "name": "Yukon",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [344, 320],
+      "name": "British Columbia",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [64, 601],
+      "name": "Manitoba",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [247, 571],
+      "name": "Saskatchewan",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [136, 401],
+      "name": "Alberta",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [67, 795],
+      "name": "Ontario",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [49, 1313],
+      "name": "Newfoundland and Labrador",
+      "flag": "ca"
+    },
+    {
+      "coordinates": [74, 226],
+      "name": "United States of America",
+      "flag": "us"
+    },
+    {
+      "coordinates": [1457, 1381],
+      "name": "Soviet Union",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1683, 1414],
+      "name": "Kazakh SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1709, 1603],
+      "name": "Uzbek SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1784, 1744],
+      "name": "Turkmen SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1803, 1265],
+      "name": "Kirghiz SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [745, 1736],
+      "name": "United Kingdom",
+      "flag": "gb"
+    },
+    {
+      "coordinates": [893, 1773],
+      "name": "West Germany",
+      "flag": "west_germany"
+    },
+    {
+      "coordinates": [987, 1792],
+      "name": "East Germany",
+      "flag": "east_germany"
+    },
+    {
+      "coordinates": [1333, 1774],
+      "name": "Ukrainian SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1194, 1814],
+      "name": "Moldovan SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1197, 1626],
+      "name": "Belorussian SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1091, 1744],
+      "name": "Poland",
+      "flag": "pl"
+    },
+    {
+      "coordinates": [1805, 1486],
+      "name": "Tajik SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1442, 1807],
+      "name": "Georgian SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1573, 1790],
+      "name": "Azerbaijan SSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1089, 1519],
+      "name": "Finland",
+      "flag": "fi"
+    },
+    {
+      "coordinates": [987, 1538],
+      "name": "Sweden",
+      "flag": "se"
+    },
+    {
+      "coordinates": [889, 1587],
+      "name": "Norway",
+      "flag": "no"
+    },
+    {
+      "coordinates": [1793, 156],
+      "name": "Japan",
+      "flag": "jp"
+    },
+    {
+      "coordinates": [1776, 517],
+      "name": "China",
+      "flag": "cn"
+    },
+    {
+      "coordinates": [1792, 774],
+      "name": "Mongolia",
+      "flag": "mn"
+    },
+    {
+      "coordinates": [1773, 961],
+      "name": "Tannu Tuva",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1142, 382],
+      "name": "Far East",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1410, 625],
+      "name": "Yakut ASSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1817, 364],
+      "name": "North Korea",
+      "flag": "kp"
+    },
+    {
+      "coordinates": [1664, 689],
+      "name": "Buryat ASSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1440, 1170],
+      "name": "Komi ASSR",
+      "flag": "Communist flag"
+    },
+    {
+      "coordinates": [1383, 875],
+      "name": "Siberia",
+      "flag": "Siberia"
+    },
+    {
+      "coordinates": [950, 1174],
+      "name": "Svalbard",
+      "flag": "sj"
+    },
+    {
+      "coordinates": [789, 1823],
+      "name": "France",
+      "flag": "fr"
+    }
+  ]
+}

map-generator/main.go

@@ -75,6 +75,7 @@ var maps = []struct {
 	{Name: "tradersdream"},
 	{Name: "hawaii"},
 	{Name: "niledelta"},
+	{Name: "arctic"},
 	{Name: "big_plains", IsTest: true},
 	{Name: "half_land_half_ocean", IsTest: true},
 	{Name: "ocean_and_land", IsTest: true},

resources/lang/en.json

@@ -336,7 +336,8 @@
     "tradersdream": "Traders Dream",
     "hawaii": "Hawaii",
     "alps": "Alps",
-    "niledelta": "Nile Delta"
+    "niledelta": "Nile Delta",
+    "arctic": "Arctic"
   },
   "map_categories": {
     "featured": "Featured",

resources/maps/arctic/manifest.json

@@ -0,0 +1,284 @@
+{
+  "map": {
+    "height": 1828,
+    "num_land_tiles": 1678775,
+    "width": 1828
+  },
+  "map16x": {
+    "height": 457,
+    "num_land_tiles": 97927,
+    "width": 457
+  },
+  "map4x": {
+    "height": 914,
+    "num_land_tiles": 409832,
+    "width": 914
+  },
+  "name": "arctic_circle",
+  "nations": [
+    {
+      "coordinates": [622, 1171],
+      "flag": "gl",
+      "name": "Greenland",
+      "strength": 2
+    },
+    {
+      "coordinates": [632, 1438],
+      "flag": "is",
+      "name": "Iceland",
+      "strength": 1
+    },
+    {
+      "coordinates": [90, 1046],
+      "flag": "Quebec",
+      "name": "Quebec",
+      "strength": 1
+    },
+    {
+      "coordinates": [747, 336],
+      "flag": "Alaska",
+      "name": "Alaska",
+      "strength": 2
+    },
+    {
+      "coordinates": [485, 927],
+      "flag": "ca",
+      "name": "Nunavut",
+      "strength": 1
+    },
+    {
+      "coordinates": [432, 550],
+      "flag": "ca",
+      "name": "Northwest Territories",
+      "strength": 1
+    },
+    {
+      "coordinates": [608, 447],
+      "flag": "ca",
+      "name": "Yukon",
+      "strength": 1
+    },
+    {
+      "coordinates": [344, 320],
+      "flag": "ca",
+      "name": "British Columbia",
+      "strength": 1
+    },
+    {
+      "coordinates": [64, 601],
+      "flag": "ca",
+      "name": "Manitoba",
+      "strength": 1
+    },
+    {
+      "coordinates": [247, 571],
+      "flag": "ca",
+      "name": "Saskatchewan",
+      "strength": 1
+    },
+    {
+      "coordinates": [136, 401],
+      "flag": "ca",
+      "name": "Alberta",
+      "strength": 1
+    },
+    {
+      "coordinates": [67, 795],
+      "flag": "ca",
+      "name": "Ontario",
+      "strength": 2
+    },
+    {
+      "coordinates": [49, 1313],
+      "flag": "ca",
+      "name": "Newfoundland and Labrador",
+      "strength": 1
+    },
+    {
+      "coordinates": [74, 226],
+      "flag": "us",
+      "name": "United States of America",
+      "strength": 3
+    },
+    {
+      "coordinates": [1457, 1381],
+      "flag": "Communist flag",
+      "name": "Soviet Union",
+      "strength": 3
+    },
+    {
+      "coordinates": [1683, 1414],
+      "flag": "Communist flag",
+      "name": "Kazakh SSR",
+      "strength": 2
+    },
+    {
+      "coordinates": [1709, 1603],
+      "flag": "Communist flag",
+      "name": "Uzbek SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1784, 1744],
+      "flag": "Communist flag",
+      "name": "Turkmen SSR",
+      "strength": 2
+    },
+    {
+      "coordinates": [1803, 1265],
+      "flag": "Communist flag",
+      "name": "Kirghiz SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [745, 1736],
+      "flag": "gb",
+      "name": "United Kingdom",
+      "strength": 3
+    },
+    {
+      "coordinates": [893, 1773],
+      "flag": "west_germany",
+      "name": "West Germany",
+      "strength": 1
+    },
+    {
+      "coordinates": [987, 1792],
+      "flag": "east_germany",
+      "name": "East Germany",
+      "strength": 2
+    },
+    {
+      "coordinates": [1333, 1774],
+      "flag": "Communist flag",
+      "name": "Ukrainian SSR",
+      "strength": 2
+    },
+    {
+      "coordinates": [1194, 1814],
+      "flag": "Communist flag",
+      "name": "Moldovan SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1197, 1626],
+      "flag": "Communist flag",
+      "name": "Belorussian SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1091, 1744],
+      "flag": "pl",
+      "name": "Poland",
+      "strength": 2
+    },
+    {
+      "coordinates": [1805, 1486],
+      "flag": "Communist flag",
+      "name": "Tajik SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1442, 1807],
+      "flag": "Communist flag",
+      "name": "Georgian SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1573, 1790],
+      "flag": "Communist flag",
+      "name": "Azerbaijan SSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1089, 1519],
+      "flag": "fi",
+      "name": "Finland",
+      "strength": 2
+    },
+    {
+      "coordinates": [987, 1538],
+      "flag": "se",
+      "name": "Sweden",
+      "strength": 1
+    },
+    {
+      "coordinates": [889, 1587],
+      "flag": "no",
+      "name": "Norway",
+      "strength": 1
+    },
+    {
+      "coordinates": [1793, 156],
+      "flag": "jp",
+      "name": "Japan",
+      "strength": 2
+    },
+    {
+      "coordinates": [1776, 517],
+      "flag": "cn",
+      "name": "China",
+      "strength": 3
+    },
+    {
+      "coordinates": [1792, 774],
+      "flag": "mn",
+      "name": "Mongolia",
+      "strength": 1
+    },
+    {
+      "coordinates": [1773, 961],
+      "flag": "Communist flag",
+      "name": "Tannu Tuva",
+      "strength": 2
+    },
+    {
+      "coordinates": [1142, 382],
+      "flag": "Communist flag",
+      "name": "Far East",
+      "strength": 1
+    },
+    {
+      "coordinates": [1410, 625],
+      "flag": "Communist flag",
+      "name": "Yakut ASSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1817, 364],
+      "flag": "kp",
+      "name": "North Korea",
+      "strength": 2
+    },
+    {
+      "coordinates": [1664, 689],
+      "flag": "Communist flag",
+      "name": "Buryat ASSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1440, 1170],
+      "flag": "Communist flag",
+      "name": "Komi ASSR",
+      "strength": 1
+    },
+    {
+      "coordinates": [1383, 875],
+      "flag": "Siberia",
+      "name": "Siberia",
+      "strength": 2
+    },
+    {
+      "coordinates": [950, 1174],
+      "flag": "sj",
+      "name": "Svalbard",
+      "strength": 1
+    },
+    {
+      "coordinates": [789, 1823],
+      "flag": "fr",
+      "name": "France",
+      "strength": 1
+    }
+  ]
+}

src/core/game/Game.ts

@@ -136,6 +136,7 @@ export enum GameMapType {
   Hawaii = "Hawaii",
   Alps = "Alps",
   NileDelta = "Nile Delta",
+  Arctic = "Arctic",
 }
 
 export type GameMapName = keyof typeof GameMapType;
@@ -184,6 +185,7 @@ export const mapCategories: Record<string, GameMapType[]> = {
     GameMapType.Hawaii,
     GameMapType.Alps,
     GameMapType.NileDelta,
+    GameMapType.Arctic,
   ],
   fantasy: [
     GameMapType.Pangaea,

src/server/MapPlaylist.ts

@@ -79,6 +79,7 @@ const frequency: Partial<Record<GameMapName, number>> = {
   Hawaii: 4,
   Alps: 4,
   NileDelta: 4,
+  Arctic: 6,
 };
 
 const TEAM_WEIGHTS: { config: TeamCountConfig; weight: number }[] = [