Deathmatch Games: share statistics when leaving

Author: RussellLVP

data/messages.json

@@ -178,6 +178,9 @@
   "GAME_REGISTRATION_UNAVAILABLE": "@error Sorry, the %s is currently unavailable.",
   "GAME_RESULT_FINISHED": "{CCD782}You have finished the {838F31}%s{CCD782} in {838F31}%d%s position{CCD782}%s.",
   "GAME_RESULT_FINISHED_AWARD": "{CCD782}You've been awarded {838F31}%${CCD782}!",
+  "GAME_STATS_ACCURACY": "{D7B882}Your accuracy was at {F5EEE0}%d%%{D7B882}, with {F5EEE0}%d hit%s{D7B882} and {F5EEE0}%d miss%s{D7B882}.",
+  "GAME_STATS_DAMAGE": "{D7B882}Finally, you inflicted {F5EEE0}%.2f damage{D7B882} and took {F5EEE0}%.2f damage{D7B882} yourself.",
+  "GAME_STATS_KD_RATIO": "{D7B882}You killed {F5EEE0}%d time%s{D7B882} and died {F5EEE0}%d time%s{D7B882} yourself, giving a ratio of {F5EEE0}%.2f{D7B882}.",
 
   "GANG_ANNOUNCE_CREATED": "%s has just founded the %s gang!",
   "GANG_ANNOUNCE_INTERNAL": "{29B6F6}*** %s",

javascript/features/games_deathmatch/deathmatch_game.js

@@ -246,6 +246,12 @@ export class DeathmatchGame extends GameBase {
         if (!this.#lagCompensation_)
             player.syncedData.lagCompensationMode = Player.kDefaultLagCompensationMode;
 
+        // Share the statistics with the player when they've been fighting. We tell them three lines
+        // at most: kills/death (+ratio), shots hit/missed (+accuracy), and damage statistics.
+        const statistics = player.stats.diff(state.statistics);
+        if (statistics)
+            this.shareStatisticsWithPlayer(player, statistics);
+
         // Clear the player-specific state we had stored in this game.
         this.#state_.delete(player);
 
@@ -266,6 +272,31 @@ export class DeathmatchGame extends GameBase {
         }
     }
 
+    // Shares the |statistics| with the |player|, based on how they've performed this game. A few
+    // lines will be highlighted. The |statistics| is a PlayerStatsView instance.
+    shareStatisticsWithPlayer(player, statistics) {
+        if (statistics.deathCount > 0 || statistics.killCount > 0) {
+            player.sendMessage(
+                Message.GAME_STATS_KD_RATIO,
+                statistics.killCount, statistics.killCount !== 1 ? 's' : '',
+                statistics.deathCount, statistics.deathCount !== 1 ? 's' : '',
+                statistics.ratio);
+        }
+
+        if (statistics.shotsHit > 0 || statistics.shotsMissed > 0) {
+            player.sendMessage(
+                Message.GAME_STATS_ACCURACY,
+                statistics.accuracy * 100,
+                statistics.shotsHit, statistics.shotsHit !== 1 ? 's' : '',
+                statistics.shotsMissed, statistics.shotsMissed !== 1 ? 'es' : '');
+        }
+
+        if (statistics.damageGiven > 0 || statistics.damageTaken > 0) {
+            player.sendMessage(
+                Message.GAME_STATS_DAMAGE, statistics.damageGiven, statistics.damageTaken);
+        }
+    }
+
     // Called periodically to update the game's state. For games on a time limit, this is where the
     // countdown will decrement, and we'll eventually finish the game.
     async onTick() {

javascript/features/games_deathmatch/games_deathmatch.test.js

@@ -421,6 +421,9 @@ describe('GamesDeathmatch', (it, beforeEach) => {
             assert.equal(stats.shotsMissed, 10);
         }
 
+        const guntherStats = game.getStatisticsForPlayer(gunther);
+        const russellStats = game.getStatisticsForPlayer(russell);
+
         assert.isTrue(await gunther.issueCommand('/leave'));
         assert.isTrue(await russell.issueCommand('/leave'));
 
@@ -431,11 +434,15 @@ describe('GamesDeathmatch', (it, beforeEach) => {
 
         assert.throws(() => game.getStatisticsForPlayer(gunther));
 
-        console.log(gunther.messages);
-        assert.equal(gunther.messages.length, 3);
+        assert.equal(gunther.messages.length, 6);
+        assert.includes(gunther.messages[3], 'giving a ratio of');
+        assert.includes(gunther.messages[4], guntherStats.shotsMissed + ' miss');
+        assert.includes(gunther.messages[5], guntherStats.damageTaken + ' damage');
 
-        console.log(russell.messages);
-        assert.equal(russell.messages.length, 3);
+        assert.equal(russell.messages.length, 6);
+        assert.includes(russell.messages[3], russellStats.killCount + ' time');
+        assert.includes(russell.messages[4], Math.round(russellStats.accuracy * 100) + '%');
+        assert.includes(russell.messages[5], russellStats.damageGiven + ' damage');
     });
 
     it('should enable players to customise the settings', async (assert) => {