lerp camera moveto

front/src/components/Promo/load_models.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { onMounted, onUnmounted, reactive, ref, watch } from 'vue';
+import { onMounted, onUnmounted, reactive, Ref, ref, watch } from 'vue';
 import {
     Box3, Color, DoubleSide, Group, Mesh, PlaneGeometry,
     MeshStandardMaterial, MeshStandardMaterialParameters,
@@ -27,6 +27,8 @@ const clickable_items = ref<any[]>([])
 const clickable_refs = ref<any[]>([])
 const envVars = reactive({}) as EnvVars
 const def_distance = reactive({ max: 10, min: 1 })
+const camera_moveto = ref() as Ref<Vector3 | undefined>;
+const camera_moveto_count = ref(100)
 
 const sidebar = usePromoSidebar();
 const sidebar_scene = usePromoScene();
@@ -218,20 +220,6 @@ const loadModels = async () => {
     }
 }
 
-const { onAfterRender } = useLoop()
-onAfterRender(() => {
-    clickable_refs.value.map(el => {
-        if (el.value[0] && el.value[0].children) {
-            el.value[0].children[0].lookAt(camera.value?.position)
-        }
-    })
-    if (controls.value) {
-        if (timer.seconds_left == 0) {
-            (controls.value as any).update();
-        }
-    }
-})
-
 loadModels()
 watch(() => props.source, () => {
     const loaded = seekByName(scene.value, 'loaded')
@@ -266,15 +254,80 @@ watch(() => sidebar, () => {
             const target_vector = new Vector3();
 
             el.getWorldPosition(target_vector);
-            target_vector.y = 0;
-            (controls.value as any).target = target_vector;
-            camera.value?.position.set(30, 30, 30);
-            (controls.value as any)._needsUpdate = true;
-            (controls.value as any).update()
-            // camera.value?.rotation.set(0,0,1)
+            camera_moveto.value = target_vector
         }
     }
 }, { deep: true })
+
+const { onAfterRender } = useLoop()
+onAfterRender(() => {
+    clickable_refs.value.map(el => {
+        if (el.value[0] && el.value[0].children) {
+            el.value[0].children[0].lookAt(camera.value?.position)
+        }
+    })
+    if (controls.value) {
+        if (timer.seconds_left == 0) {
+            (controls.value as any).update();
+        }
+    }
+    if (camera_moveto.value) {
+        timer.stopTimer();
+        (controls.value as any).target.lerp(camera_moveto.value, 0.01);
+        camera_moveto_count.value -= 1
+        if (camera_moveto_count.value == 0) {
+            camera_moveto_count.value = 100
+            camera_moveto.value = undefined
+            // camera.value?.position.set(30, 30, 30);
+            // camera.value?.rotation.set(0, 0, 1);
+            timer.startTimer()
+        }
+        (controls.value as any).update()
+    }
+})
+const timer = useTimer()
+timer.timer_func = () => {
+    if (timer.seconds_left == 0 && !(controls.value as any).autoRotate && (controls.value as any).enabled) {
+        pause()
+        if (controls.value && camera.value) {
+            camera.value?.position.set(
+                (controls.value as any).maxDistance * 0.5,
+                (controls.value as any).maxDistance * 0.5,
+                (controls.value as any).maxDistance * 0.5
+            );
+            (controls.value as any).target = new Vector3(0, 0, 0);
+            (controls.value as any).autoRotate = true;
+            (controls.value as any).autoRotateSpeed = 0.5;
+        }
+        resume()
+    }
+}
+
+const stopTimer = () => {
+    timer.resetTimer()
+    if ((controls.value as any).autoRotate) {
+        (controls.value as any).autoRotate = false
+    }
+}
+
+const pointer = reactive({ x: 0, y: 0 })
+const clickEvent = (event: MouseEvent) => {
+    const x = (event.clientX / window.innerWidth) * 2 - 1
+    const y = - (event.clientY / window.innerHeight) * 2 + 1
+    if (x == pointer.x && y == pointer.y) return
+    if (!camera.value) return
+
+    pointer.x = x
+    pointer.y = y
+    raycaster.value.setFromCamera(new Vector2(pointer.x, pointer.y), camera.value);
+
+    const clickable_objects = seekAllByName(scene.value, '_clickable');
+    const intersects = raycaster.value.intersectObjects(clickable_objects);
+    const names = intersects.map(el => (el.object.parent ? el.object.parent.name : el.object.name) ?? false).filter(Boolean)
+    if (names.length) {
+        sidebar.open(parseInt(names[0].replace('_clickable', '')))
+    }
+}
 const timerEvent = ['click', 'contextmenu', 'mousedown', 'mouseup', 'touchstart', 'touchend', 'touchmove']
 onMounted(() => {
     document.addEventListener('click', clickEvent)
@@ -293,49 +346,6 @@ onUnmounted(() => {
         document.removeEventListener(event, stopTimer)
     })
 })
-const pointer = reactive({ x: 0, y: 0 })
-
-const timer = useTimer()
-timer.timer_func = () => {
-    if (timer.seconds_left == 0 && !(controls.value as any).autoRotate && (controls.value as any).enabled) {
-        pause()
-        if (controls.value && camera.value) {
-            camera.value?.position.set(
-                (controls.value as any).maxDistance * 0.5,
-                (controls.value as any).maxDistance * 0.5,
-                (controls.value as any).maxDistance * 0.5
-            );
-            (controls.value as any).target = new Vector3(0, 0, 0);
-            (controls.value as any).autoRotate = true;
-            (controls.value as any).autoRotateSpeed = 0.5;
-        }
-        resume()
-    }
-}
-const stopTimer = () => {
-    timer.resetTimer()
-    if ((controls.value as any).autoRotate) {
-        (controls.value as any).autoRotate = false
-    }
-}
-
-const clickEvent = (event: MouseEvent) => {
-    const x = (event.clientX / window.innerWidth) * 2 - 1
-    const y = - (event.clientY / window.innerHeight) * 2 + 1
-    if (x == pointer.x && y == pointer.y) return
-    if (!camera.value) return
-
-    pointer.x = x
-    pointer.y = y
-    raycaster.value.setFromCamera(new Vector2(pointer.x, pointer.y), camera.value);
-
-    const clickable_objects = seekAllByName(scene.value, '_clickable');
-    const intersects = raycaster.value.intersectObjects(clickable_objects);
-    const names = intersects.map(el => (el.object.parent ? el.object.parent.name : el.object.name) ?? false).filter(Boolean)
-    if (names.length) {
-        sidebar.open(parseInt(names[0].replace('_clickable', '')))
-    }
-}
 </script>
 <template>
     <TresGroup name="loaded">