Merge pull request #178 from KotRikD/feature/realtimebpm

RealTime BPM

package.json

@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "@trivago/prettier-plugin-sort-imports": "^4.1.1",
-    "@types/node": "^18.18.11",
+    "@types/node": "^20.11.1",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1",
     "eslint": "^8.57.0",

packages/tosu/src/api/types/v2.ts

@@ -311,6 +311,7 @@ export interface Hp {
 }
 
 export interface Bpm {
+    realtime: number;
     common: number;
     min: number;
     max: number;

packages/tosu/src/api/utils/buildResultV2.ts

@@ -315,6 +315,7 @@ export const buildResult = (instanceManager: InstanceManager): ApiAnswer => {
                 },
 
                 bpm: {
+                    realtime: fixDecimals(beatmapPpData.realtimeBPM),
                     common: fixDecimals(beatmapPpData.commonBPM),
                     min: fixDecimals(beatmapPpData.minBPM),
                     max: fixDecimals(beatmapPpData.maxBPM)

packages/tosu/src/entities/BeatmapPpData/index.ts

@@ -64,6 +64,7 @@ export class BeatmapPPData extends AbstractEntity {
     beatmapContent?: string;
     strains: number[];
     strainsAll: BeatmapStrains;
+    realtimeBPM: number;
     commonBPM: number;
     minBPM: number;
     maxBPM: number;
@@ -94,6 +95,7 @@ export class BeatmapPPData extends AbstractEntity {
             xaxis: []
         };
         this.Mode = 0;
+        this.realtimeBPM = 0.0;
         this.commonBPM = 0.0;
         this.minBPM = 0.0;
         this.maxBPM = 0.0;
@@ -563,4 +565,16 @@ export class BeatmapPPData extends AbstractEntity {
             wLogger.debug(exc);
         }
     }
+
+    updateRealTimeBPM(timeMS: number) {
+        if (!this.lazerBeatmap) return;
+
+        this.realtimeBPM =
+            this.lazerBeatmap.controlPoints.timingPoints
+                // @ts-ignore
+                .toReversed()
+                .find((r) => r.startTime <= timeMS && r.bpm !== 0)?.bpm ||
+            this.lazerBeatmap.controlPoints.timingPoints[0]?.bpm ||
+            0.0;
+    }
 }

packages/tosu/src/objects/instanceManager/osuInstance.ts

@@ -318,6 +318,8 @@ export class OsuInstance {
                     this.previousMP3Length = menuData.MP3Length;
                 }
 
+                beatmapPpData.updateRealTimeBPM(allTimesData.PlayTime);
+
                 switch (allTimesData.Status) {
                     case 0:
                         bassDensityData.updateState();