feat: consistent zoom

packages/website/src/components/Tankopedia/HeroSection/components/TankSandbox/components/Control.tsx

@@ -8,6 +8,10 @@ import { degToRad } from 'three/src/math/MathUtils.js';
 import { awaitableModelDefinitions } from '../../../../../../core/awaitables/modelDefinitions';
 import { applyPitchYawLimits } from '../../../../../../core/blitz/applyPitchYawLimits';
 import { hasEquipment } from '../../../../../../core/blitzkit/hasEquipment';
+import {
+  modelTransformEvent,
+  type ModelTransformEventData,
+} from '../../../../../../core/blitzkit/modelTransform';
 import { Pose, poseEvent } from '../../../../../../core/blitzkit/pose';
 import { Duel } from '../../../../../../stores/duel';
 import {
@@ -16,6 +20,7 @@ import {
   TankopediaEphemeral,
 } from '../../../../../../stores/tankopediaEphemeral';
 import { TankopediaDisplay } from '../../../../../../stores/tankopediaPersistent/constants';
+import { aimTarget } from './SceneProps/constants';
 
 const poseDistances: Record<Pose, number> = {
   [Pose.HullDown]: 15,
@@ -199,6 +204,8 @@ export function Controls() {
   }, [camera, protagonistTank.id, antagonistTank.id]);
 
   useEffect(() => {
+    let isInitialIteration = true;
+
     function handleDisturbance() {
       setAutoRotate(false);
     }
@@ -243,6 +250,8 @@ export function Controls() {
     document.body.addEventListener('scroll', handleScroll);
 
     const sniperModeCameraOffset = new Vector3();
+    let pitch = 0;
+    let yaw = 0;
 
     function updateCamera() {
       if (!orbitControls.current) return;
@@ -261,19 +270,32 @@ export function Controls() {
 
         if (shootingRangeZoom === ShootingRangeZoom.Arcade) {
           orbitControls.current.target.set(0, gunHeight + 3, 0);
-          camera.position.set(
-            0,
-            gunHeight + ARCADE_MODE_DISTANCE * Math.sin(ARCADE_MODE_ANGLE),
-            ARCADE_MODE_DISTANCE * Math.cos(ARCADE_MODE_ANGLE),
-          );
+
+          if (isInitialIteration) {
+            isInitialIteration = false;
+            camera.position.set(
+              0,
+              gunHeight + ARCADE_MODE_DISTANCE * Math.sin(ARCADE_MODE_ANGLE),
+              ARCADE_MODE_DISTANCE * Math.cos(ARCADE_MODE_ANGLE),
+            );
+          } else {
+            camera.position
+              .copy(aimTarget)
+              .sub(orbitControls.current.target)
+              .normalize()
+              .multiplyScalar(-ARCADE_MODE_DISTANCE)
+              .add(orbitControls.current.target);
+          }
         } else {
           orbitControls.current.target.copy(shellOrigin);
-          camera.position.copy(
-            sniperModeCameraOffset.set(0, 0, 1e-4).add(shellOrigin),
-          );
-        }
 
-        console.log(ShootingRangeZoom[shootingRangeZoom], camera.zoom);
+          camera.position
+            .copy(aimTarget)
+            .sub(shellOrigin)
+            .normalize()
+            .multiplyScalar(-1e-4)
+            .add(shellOrigin);
+        }
       } else {
         camera.position.set(...inspectModeInitialPosition);
         orbitControls.current.target.set(0, gunHeight / 2, 0);
@@ -285,6 +307,13 @@ export function Controls() {
       camera.updateProjectionMatrix();
     }
 
+    function handleModelTransform(event: ModelTransformEventData) {
+      pitch = event.pitch;
+      yaw = event.yaw ?? yaw;
+    }
+
+    modelTransformEvent.on(handleModelTransform);
+
     updateCamera();
 
     const unsubscribeDisplay = tankopediaEphemeralStore.subscribe(
@@ -308,6 +337,7 @@ export function Controls() {
       window.removeEventListener('keydown', handleKeyDown);
       canvas.removeEventListener('wheel', handleWheel);
       document.body.removeEventListener('scroll', handleScroll);
+      modelTransformEvent.off(handleModelTransform);
     };
   }, [display === TankopediaDisplay.ShootingRange]);
 

packages/website/src/components/Tankopedia/HeroSection/components/TankSandbox/components/SceneProps/constants.ts

@@ -0,0 +1,3 @@
+import { Vector3 } from 'three';
+
+export const aimTarget = new Vector3();

packages/website/src/components/Tankopedia/HeroSection/components/TankSandbox/components/SceneProps/index.tsx

@@ -24,6 +24,7 @@ import { TankopediaEphemeral } from '../../../../../../../stores/tankopediaEphem
 import { TankopediaPersistent } from '../../../../../../../stores/tankopediaPersistent';
 import { TankopediaDisplay } from '../../../../../../../stores/tankopediaPersistent/constants';
 import { TargetCircle } from './components/TargetCircle';
+import { aimTarget } from './constants';
 
 const [modelDefinitions, equipmentDefinitions, provisionDefinitions] =
   await Promise.all([
@@ -106,6 +107,8 @@ export function SceneProps() {
   const gunRotationSpeed = degToRad(characteristics.gunTraverseSpeed);
   const mockTank = useLoader(GLTFLoader, asset(`3d/tanks/models/12305.glb`));
   const texture = useLoader(TextureLoader, imgur('C28Z8nU'));
+  const path = new Vector3();
+  const direction = new Vector3();
   texture.anisotropy = 2;
 
   useFrame(({ camera }) => {
@@ -136,16 +139,16 @@ export function SceneProps() {
     );
 
     let length: number;
-    let direction: Vector3;
 
     if (cameraIntersections.length === 0) {
       length = FAR_DISTANCE;
-      direction = new Vector3(0, 0, -1).applyQuaternion(camera.quaternion);
+      direction.set(0, 0, -1).applyQuaternion(camera.quaternion);
+      aimTarget.copy(shellOrigin).addScaledVector(direction, length);
     } else {
-      const target = cameraIntersections[0].point;
-      const path = target.clone().sub(shellOrigin);
+      aimTarget.copy(cameraIntersections[0].point);
+      path.copy(aimTarget).sub(shellOrigin);
       length = path.length();
-      direction = path.clone().normalize();
+      direction.copy(path).normalize();
     }
 
     const deltaT = clock.elapsedTime - lastTime;