refactor: serialise traffic data for better performance

flybywiresim · Feb 12, 2022 · bea612d · bea612d
1 parent 3a268fd
commit bea612d
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Showing 2 changed files with 9 additions and 7 deletions.
diff --git a/src/instruments/src/ND/elements/Traffic.tsx b/src/instruments/src/ND/elements/Traffic.tsx
@@ -52,7 +52,8 @@ export const Traffic: FC<TcasProps> = ({ mapParams, mode }) => {
     const x: number = 361.5;
     const y: number = (mode === Mode.ARC) ? 606.5 : 368;
 
-    useCoherentEvent('A32NX_TCAS_TRAFFIC', (airTraffic: NdTraffic[]) => {
+    useCoherentEvent('A32NX_TCAS_TRAFFIC', (airTrafficString: string) => {
+        const airTraffic: NdTraffic[] = JSON.parse(airTrafficString);
         displayTraffic.forEach((traffic: NdTraffic) => traffic.alive = false);
         if (airTraffic) {
             airTraffic.forEach((tf: NdTraffic) => {
@@ -136,13 +137,13 @@ export const Traffic: FC<TcasProps> = ({ mapParams, mode }) => {
                         {'DMOD: '}
                     </tspan>
                     <tspan fill="#e38c56">
-                        {dmodTa}
+                        {dmodTa.toFixed(3)}
                     </tspan>
                     <tspan fill="#ffffff">
                         {' | '}
                     </tspan>
                     <tspan fill="#ff0000">
-                        {dmodRa}
+                        {dmodRa.toFixed(3)}
                     </tspan>
                     <tspan x={290} dy={15} fill="#ffffff">
                         {'TAU THR: '}
@@ -352,4 +353,4 @@ const TrafficIndicatorDebug: FC<TrafficPropDebug> = memo(({ x, y, relativeAlt, v
             </Layer>
         </>
     );
-});
+});
diff --git a/src/tcas/src/components/TcasComputer.ts b/src/tcas/src/components/TcasComputer.ts
@@ -16,6 +16,7 @@ import {
     Inhibit, Limits,
 } from '../lib/TcasConstants';
 import { TcasSoundManager } from './TcasSoundManager';
+import stringify from 'safe-stable-stringify';
 
 export class NDTcasTraffic {
     ID: string;
@@ -1026,7 +1027,7 @@ export class TcasComputer implements TcasComponent {
             }
         });
 
-        this.sendListener.triggerToAllSubscribers('A32NX_TCAS_TRAFFIC', this.sendAirTraffic);
+        this.sendListener.triggerToAllSubscribers('A32NX_TCAS_TRAFFIC', stringify(this.sendAirTraffic));
     }
 
     update(_deltaTime: number): void {
@@ -1042,7 +1043,7 @@ export class TcasComputer implements TcasComponent {
         if (this.tcasMode.getVar() === TcasMode.STBY) {
             if (this.sendAirTraffic.length !== 0) {
                 this.sendAirTraffic.length = 0;
-                this.sendListener.triggerToAllSubscribers('A32NX_TCAS_TRAFFIC', this.sendAirTraffic);
+                this.sendListener.triggerToAllSubscribers('A32NX_TCAS_TRAFFIC', stringify(this.sendAirTraffic));
             }
             return;
         }
@@ -1052,4 +1053,4 @@ export class TcasComputer implements TcasComponent {
         this.updateRa(deltaTime);
         this.emitDisplay();
     }
-}
+}