Support the environment settings in games

javascript/features/games/README.md

@@ -18,7 +18,7 @@ derby and racing games.
 
 ## Options when registering a game
 When registering a game with the `Games.registerGame()` function, you pass in a class that extends
-the [Game class](game.js) and an options dictionary.
+the [GameBase class](game_base.js) ([interface](game.js)) and an options dictionary.
 
 ### Required configuration
 

javascript/features/games/environment_settings.js

@@ -5,13 +5,43 @@
 import { GameCustomSetting } from 'features/games/game_custom_setting.js';
 import { Menu } from 'components/menu/menu.js';
 
+// Configuration and mappings for the gravity options available to games.
+const kGravityConfiguration = new Map([
+    [ 'Low', 0.005 ],
+    [ 'Normal', null ],
+    [ 'High', 0.011 ],
+]);
+
+// Configuration and mappings for the time options available to games.
+const kTimeConfiguration = new Map([
+    [ 'Morning', 8 ],
+    [ 'Afternoon', 15 ],
+    [ 'Evening', 20 ],
+    [ 'Night', 2 ],
+]);
+
+// Configuration and mappings for the weather options available to games.
+const kWeatherConfiguration = new Map([
+    [ 'Cloudy', 7 ],
+    [ 'Foggy', 9 ],
+    [ 'Heatwave', 11 ],
+    [ 'Rainy', 8 ],
+    [ 'Sandstorm', 19 ],
+    [ 'Sunny', 10 ],
+]);
+
 // Represents the environment for minigames, which can be customised to the player's liking. This
 // includes the time, the weather, as well as the gravity level to apply.
 export class EnvironmentSettings extends GameCustomSetting {
     // Options available for each of the configuration values.
-    static kTimeOptions = [ 'Morning', 'Afternoon', 'Evening', 'Night' ];
-    static kWeatherOptions = [ 'Cloudy', 'Foggy', 'Heatwave', 'Rainy', 'Sandstorm', 'Sunny' ];
-    static kGravityOptions = [ 'Low', 'Normal', 'High' ];
+    static kGravityOptions = [ ...kGravityConfiguration.keys() ];
+    static kTimeOptions = [ ...kTimeConfiguration.keys() ];
+    static kWeatherOptions = [ ...kWeatherConfiguration.keys() ];
+
+    // Returns the actual in-game values for the given |option|.
+    static getGravityForOption(option) { return kGravityConfiguration.get(option) ?? null; }
+    static getTimeForOption(option) { return kTimeConfiguration.get(option) ?? null; }
+    static getWeatherForOption(option) { return kWeatherConfiguration.get(option) ?? null; }
 
     // Returns the value that is to be displayed in the generic customization dialog for games.
     getCustomizationDialogValue(currentValue) {

javascript/features/games/game_base.js

@@ -0,0 +1,42 @@
+// Copyright 2020 Las Venturas Playground. All rights reserved.
+// Use of this source code is governed by the MIT license, a copy of which can
+// be found in the LICENSE file.
+
+import { EnvironmentSettings } from 'features/games/environment_settings.js';
+import { Game } from 'features/games/game.js';
+
+// Implementation of the Game class that provides the low-level functionality offered directly by
+// the Games API. Most features will want to extend this class rather than Game directly.
+export class GameBase extends Game {
+    #gravity_ = null;
+    #time_ = null;
+    #weather_ = null;
+
+    async onInitialized(settings, userData) {
+        const environment = settings.get('game/environment');
+        if (environment) {
+            this.#gravity_ = EnvironmentSettings.getGravityForOption(environment.gravity);
+            this.#time_ = EnvironmentSettings.getTimeForOption(environment.time);
+            this.#weather_ = EnvironmentSettings.getWeatherForOption(environment.weather);
+        }
+    }
+
+    async onPlayerAdded(player) {
+        // Update the gravity, time and weather for the |player|, but only when necessary.
+        if (this.#gravity_)
+            player.gravity = this.#gravity_;
+
+        if (this.#time_)
+            player.time = [ this.#time_, 20 ];
+
+        if (this.#weather_)
+            player.weather = this.#weather_;
+    }
+
+    async onPlayerRemoved(player) {
+        // Restore the gravity for the player. The |player|'s weather and time will be reset when
+        // their state gets deserialized immediately after this.
+        if (this.#gravity_)
+            player.gravity = Player.kDefaultGravity;
+    }
+}

javascript/features/games/game_runtime.test.js

@@ -2,7 +2,9 @@
 // Use of this source code is governed by the MIT license, a copy of which can
 // be found in the LICENSE file.
 
+import { EnvironmentSettings } from 'features/games/environment_settings.js';
 import { GameActivity } from 'features/games/game_activity.js';
+import { GameBase } from 'features/games/game_base.js';
 import { GameDescription, kDefaultTickIntervalMs } from 'features/games/game_description.js';
 import { GameRuntime } from 'features/games/game_runtime.js';
 import { Game } from 'features/games/game.js';
@@ -247,14 +249,22 @@ describe('GameRuntime', (it, beforeEach) => {
             minimumPlayers: 2,
             maximumPlayers: 4,
             price: 250,
+
+            environment: {
+                gravity: 'Low',
+                time: 'Afternoon',
+                weather: 'Foggy',
+            },
         };
 
         let vehicles = [ null, null ];
-        feature.registerGame(class extends Game {
+        feature.registerGame(class extends GameBase {
             nextPlayerIndex_ = 0;
             playerIndex_ = new Map();
 
-            async onInitialized(settings) {
+            async onInitialized(settings, userData) {
+                await super.onInitialized(settings, userData);
+
                 vehicles[0] = this.scopedEntities.createVehicle({
                     modelId: 432,  // tank
                     position: new Vector(0, 0, 0),
@@ -267,14 +277,20 @@ describe('GameRuntime', (it, beforeEach) => {
             }
 
             async onPlayerAdded(player) {
+                await super.onPlayerAdded(player);
+
                 this.playerIndex_.set(player, this.nextPlayerIndex_++);
             }
 
             async onPlayerSpawned(player) {
+                await super.onPlayerSpawned(player);
+
                 player.enterVehicle(vehicles[this.playerIndex_.get(player)]);
             }
 
             async onPlayerDeath(player, killer, reason) {
+                await super.onPlayerDeath(player, killer, reason);
+
                 await this.playerLost(player);
                 await this.playerWon(killer, 25);
             }
@@ -298,6 +314,9 @@ describe('GameRuntime', (it, beforeEach) => {
         assert.equal(
             manager.getPlayerActivity(russell).getActivityState(), GameActivity.kStateRegistered);
 
+        assert.deepEqual(gunther.time, [ 0, 0 ]);
+        assert.equal(gunther.gravity, Player.kDefaultGravity);
+
         await server.clock.advance(settings.getValue('games/registration_expiration_sec') * 1000);
         await runGameLoop();
 
@@ -314,6 +333,9 @@ describe('GameRuntime', (it, beforeEach) => {
         assert.equal(
             manager.getPlayerActivity(russell).getActivityState(), GameActivity.kStateEngaged);
 
+        assert.deepEqual(gunther.time, [ EnvironmentSettings.getTimeForOption('Afternoon'), 20 ]);
+        assert.equal(gunther.gravity, EnvironmentSettings.getGravityForOption('Low'));
+
         assert.equal(runtime.state, GameRuntime.kStateRunning);
 
         assert.isNotNull(vehicles[0]);
@@ -355,6 +377,9 @@ describe('GameRuntime', (it, beforeEach) => {
         // Make sure that the money has been divided as expected.
         assert.equal(finance.getPlayerCash(gunther), 150);
         assert.equal(finance.getPlayerCash(russell), 1250);
+
+        // Make sure that gravity was reset.
+        assert.equal(gunther.gravity, Player.kDefaultGravity);
     });
 
     it('is able to proportionally calculate the prize money', assert => {

javascript/features/games_deathmatch/deathmatch_game.js

@@ -4,15 +4,15 @@
 
 import { Color } from 'base/color.js';
 import { DeathmatchPlayerState } from 'features/games_deathmatch/deathmatch_player_state.js';
-import { Game } from 'features/games/game.js';
+import { GameBase } from 'features/games/game_base.js';
 
 // Colours that will be assigned to participants of certain teams.
 const kTeamColorAlpha = Color.fromHex('D84315AA');  // red
 const kTeamColorBravo = Color.fromHex('0277BDAA');  // blue
 
 // Implementation of the `Game` interface which extends it with deathmatch-related functionality. It
 // exposes methods that should be called before game-specific behaviour, i.e. through super calls.
-export class DeathmatchGame extends Game {
+export class DeathmatchGame extends GameBase {
     // Values for map marker visibility for the participants.
     static kMapMarkersEnabled = 'Enabled';
     static kMapMarkersEnabledTeam = 'Team only';