Feature: Implement and test clear target functionality for player start actions

src/app/App.tsx

@@ -660,6 +660,8 @@ function getPlayerStartInputActionLabel(
       return "Crouch";
     case "interact":
       return "Interact";
+    case "clearTarget":
+      return "Clear Target";
     case "pauseTime":
       return "Pause";
   }

src/document/scene-document.ts

@@ -34,8 +34,10 @@ export const PLAYER_START_TARGETING_SETTINGS_SCENE_DOCUMENT_VERSION =
   83 as const;
 export const PLAYER_START_INTERACT_BINDINGS_SCENE_DOCUMENT_VERSION =
   82 as const;
-export const PLAYER_START_INTERACTION_ANGLE_SCENE_DOCUMENT_VERSION = 81 as const;
-export const PLAYER_START_INTERACTION_REACH_SCENE_DOCUMENT_VERSION = 80 as const;
+export const PLAYER_START_INTERACTION_ANGLE_SCENE_DOCUMENT_VERSION =
+  81 as const;
+export const PLAYER_START_INTERACTION_REACH_SCENE_DOCUMENT_VERSION =
+  80 as const;
 export const SHADER_SKY_AURORA_SCENE_DOCUMENT_VERSION = 79 as const;
 export const CAMERA_RIG_MAPPED_RAIL_SCENE_DOCUMENT_VERSION = 78 as const;
 export const CAMERA_RIG_CONTROL_SURFACE_SCENE_DOCUMENT_VERSION = 77 as const;

src/runtime-three/runtime-host.ts

@@ -136,8 +136,11 @@ import {
   type AdvancedRenderingSettings
 } from "../document/world-settings";
 import {
+  createPlayerStartInputBindings,
+  DEFAULT_PLAYER_START_ALLOW_LOOK_INPUT_TARGET_SWITCH,
   DEFAULT_PLAYER_START_INTERACTION_ANGLE_DEGREES,
   DEFAULT_PLAYER_START_INTERACTION_REACH_METERS,
+  DEFAULT_PLAYER_START_TARGET_BUTTON_CYCLES_ACTIVE_TARGET,
   getNpcColliderHeight,
   getPlayerStartMouseBindingCodeForButton,
   isPlayerStartMouseBindingCode
@@ -216,6 +219,7 @@ import {
 } from "./runtime-scene-build";
 import {
   resolveDefaultTargetCycleInput,
+  resolvePlayerStartClearTargetInput,
   resolvePlayerStartInteractInput,
   resolvePlayerStartLookInput,
   resolvePlayerStartPauseInput
@@ -787,6 +791,7 @@ export class RuntimeHost {
   private activeRuntimeTargetOcclusionSeconds = 0;
   private runtimeTargetSwitchInputHeld = false;
   private previousTargetCycleInputActive = false;
+  private previousClearTargetInputActive = false;
   private activeCameraRigOverrideEntityId: string | null = null;
   private activeCameraSourceKey: RuntimeCameraSourceKey | null = null;
   private activeRuntimeCameraRig: RuntimeCameraRig | null = null;
@@ -1095,6 +1100,7 @@ export class RuntimeHost {
     this.controlPauseActive = false;
     this.dialoguePauseActive = false;
     this.previousInteractInputActive = false;
+    this.previousClearTargetInputActive = false;
     this.previousPauseInputActive = false;
     this.cameraRigLookDragging = false;
     this.cameraRigLookYawRadians = 0;
@@ -1337,6 +1343,7 @@ export class RuntimeHost {
     this.controlPauseActive = false;
     this.dialoguePauseActive = false;
     this.previousInteractInputActive = false;
+    this.previousClearTargetInputActive = false;
     this.previousPauseInputActive = false;
     this.cameraRigLookDragging = false;
     this.cameraRigLookYawRadians = 0;
@@ -5009,6 +5016,7 @@ export class RuntimeHost {
     this.updateInteractInputState();
     this.updatePauseInputState();
     this.updateRuntimeTargetingInputState();
+    this.updateClearTargetInputState();
     const simulationDt = this.isRuntimePaused() ? 0 : dt;
     const cameraDt = dt;
     const previousCameraPose = this.captureCurrentCameraPose();
@@ -5687,6 +5695,7 @@ export class RuntimeHost {
     this.activeRuntimeTargetOcclusionSeconds = 0;
     this.runtimeTargetSwitchInputHeld = false;
     this.previousTargetCycleInputActive = false;
+    this.previousClearTargetInputActive = false;
     this.targetingLuxInitialized = false;
     this.targetingLuxFlightState = "hidden";
     this.targetingVisualTime = 0;
@@ -6764,6 +6773,7 @@ export class RuntimeHost {
   private handleRuntimeBlur = () => {
     this.pressedKeys.clear();
     this.previousInteractInputActive = false;
+    this.previousClearTargetInputActive = false;
     this.previousPauseInputActive = false;
     this.previousTargetCycleInputActive = false;
     this.cameraRigLookDragging = false;