temp

client/src/lib/Dashboard/Visualization/CameraControls/Scene.svelte

@@ -1,9 +1,87 @@
-<script>
+<script lang="ts">
   import { T, useTask } from '@threlte/core'
   import { Grid } from '@threlte/extras'
   import CameraControls from './CameraControls.svelte'
   import { cameraControls, mesh } from './utils/cameraStore'
   import Hornet from '../models/Hornet.svelte'
+  import { Vector3 } from 'three'
+  import { onMount } from 'svelte'
+
+  function vectorFromObject() {
+    let ideal: Vector3 = new Vector3()
+    $cameraControls.getPosition(ideal, true)
+
+    ideal.applyQuaternion($mesh.quaternion)
+    ideal.add(new Vector3($mesh.position.x, $mesh.position.y, $mesh.position.z))
+    return ideal
+  }
+
+  const follow = (delta: number) => {
+    // the object's position is bound to the prop
+    if (!$mesh || !$cameraControls) return
+
+    // typescript HACKS! never do this! How does this work? who knows!
+    const robotPosition = vectorFromObject()
+
+    const horizontalOffsetDistance = 12 // Distance behind the leading vector
+    const direction = new Vector3(0, 0, 1) // Default forward direction in Three.js is negative z-axis, so behind is positive z-axis
+    const verticalOffset = new Vector3(0, -2.8, 0)
+
+    // Calculate the offset vector
+    const offsetVector = direction
+      .normalize()
+      .multiplyScalar(horizontalOffsetDistance)
+      .add(verticalOffset)
+
+    // If the leading object is rotating, apply its rotation to the offset vector
+    const rotatedOffsetVector = offsetVector.applyQuaternion($mesh.quaternion)
+
+    // Calculate the trailing vector's position
+    const trailingVector = robotPosition.clone().sub(rotatedOffsetVector)
+
+    $cameraControls.setLookAt(
+      trailingVector.x,
+      trailingVector.y,
+      trailingVector.z,
+      $mesh.position.x,
+      $mesh.position.y,
+      $mesh.position.z,
+      true
+    )
+  }
+
+  useTask(delta => {
+    // follow(delta)
+    // $cameraControls.moveTo(
+    //   $mesh.position.x,
+    //   $mesh.position.y,
+    //   $mesh.position.z,
+    //   true
+    // )
+  })
+
+  onMount(() => {
+    setTimeout(() => {
+      // $cameraControls.setLookAt(
+      //   $mesh.position.x,
+      //   $mesh.position.y,
+      //   $mesh.position.z,
+      //   $mesh.position.x,
+      //   $mesh.position.y,
+      //   $mesh.position.z,
+      //   true
+      // )
+      $cameraControls.setLookAt(
+        30,
+        20,
+        -40,
+        $mesh.position.x,
+        $mesh.position.y,
+        $mesh.position.z,
+        true
+      )
+    }, 8000)
+  })
 </script>
 
 <T.PerspectiveCamera
@@ -17,7 +95,6 @@
     on:create={({ ref }) => {
       $cameraControls = ref
     }}
-    autoRotate
   />
 </T.PerspectiveCamera>
 

client/src/lib/Dashboard/Visualization/CameraControls/utils/cameraStore.ts

@@ -1,6 +1,8 @@
 import type CameraControls from 'camera-controls'
 import { writable } from 'svelte/store'
 import Hornet from '../../models/Hornet.svelte'
+import type { Mesh, Object3DEventMap } from 'three'
+import type { Group } from 'three/examples/jsm/libs/tween.module.js'
 
 export const cameraControls = writable<CameraControls>()
-export const mesh = writable()
+export const mesh = writable<Mesh>()

client/src/lib/Dashboard/Visualization/Visualization.svelte

@@ -19,28 +19,20 @@
     camera = $cameraControls._camera
   }
 
-  // function vectorFromObject(vec: { x: number; y: number; z: number }) {
-  //   const { x, y, z } = vec
-  //   const ideal = new Vector3(x, y, z)
-  //   ideal.applyQuaternion($mesh.quaternion)
-  //   ideal.add(new Vector3($mesh.position.x, $mesh.position.y, $mesh.position.z))
-  //   return ideal
-  // }
-
   onMount(() => {
-    setTimeout(() => {
-      // $cameraControls.moveTo(3, 5, 2, true)
-      // $cameraControls.setOrbitPoint(20, 20, 20)
-      $cameraControls.setLookAt(
-        3,
-        5,
-        2,
-        $mesh.position.x,
-        $mesh.position.y,
-        $mesh.position.z,
-        true
-      )
-    }, 8000)
+    // setTimeout(() => {
+    //   // $cameraControls.moveTo(3, 5, 2, true)
+    //   // $cameraControls.setOrbitPoint(20, 20, 20)
+    //   $cameraControls.setLookAt(
+    //     3,
+    //     5,
+    //     2,
+    //     $mesh.position.x,
+    //     $mesh.position.y,
+    //     $mesh.position.z,
+    //     true
+    //   )
+    // }, 8000)
   })
 </script>