From 90e579e2cedc6affe19fe4945488c109bc3ebfb6 Mon Sep 17 00:00:00 2001
From: Georges-Antoine Assi <contact@me.gantoine.com>
Date: Sat, 25 Oct 2025 10:03:34 -0400
Subject: [PATCH] Spin disks on hover

---
 .../src/components/common/Game/Card/Base.vue  | 76 ++++++++++++++++++-
 frontend/src/utils/index.ts                   | 33 ++++++++
 2 files changed, 107 insertions(+), 2 deletions(-)

diff --git a/frontend/src/components/common/Game/Card/Base.vue b/frontend/src/components/common/Game/Card/Base.vue
index 99944f55a..b16c237ad 100644
--- a/frontend/src/components/common/Game/Card/Base.vue
+++ b/frontend/src/components/common/Game/Card/Base.vue
@@ -9,6 +9,7 @@ import {
   onBeforeUnmount,
   inject,
   useTemplateRef,
+  nextTick,
 } from "vue";
 import { useDisplay } from "vuetify";
 import type { SearchRomSchema } from "@/__generated__";
@@ -27,7 +28,7 @@ import storePlatforms from "@/stores/platforms";
 import storeRoms from "@/stores/roms";
 import { type SimpleRom } from "@/stores/roms";
 import type { Events } from "@/types/emitter";
-import { FRONTEND_RESOURCES_PATH } from "@/utils";
+import { FRONTEND_RESOURCES_PATH, CD_BASED_SYSTEMS } from "@/utils";
 import {
   getMissingCoverImage,
   getUnmatchedCoverImage,
@@ -85,8 +86,8 @@ const emit = defineEmits([
   "touchend",
 ]);
 const handleClick = (event: MouseEvent) => {
+  // Only handle left-click
   if (event.button === 0) {
-    // Only handle left-click
     emit("click", { event: event, rom: props.rom });
   }
 };
@@ -202,6 +203,74 @@ const showNoteDialog = (event: MouseEvent | KeyboardEvent) => {
   }
 };
 
+// Spinning disk animation variables
+const maxRotationSpeed = 5600; // deg/sec (adjust top speed)
+const accelerationRate = 1500; // deg/sec^2 (how fast it accelerates)
+const decelerationRate = -2000; // deg/sec^2 (how fast it slows)
+
+// Stored animation state
+let angle = 0; // current rotation in degrees
+let velocity = 0; // degrees / second
+let lastTimestamp: number | null = null;
+let isHovering = false;
+let animationId: number | null = null;
+
+const onEnter = () => {
+  // Only animate physical disks
+  if (boxartStyle.value !== "physical_path") return;
+  if (!boxartStyleCover.value) return;
+  if (!romsStore.isSimpleRom(props.rom)) return;
+  if (!CD_BASED_SYSTEMS.includes(props.rom.platform_slug)) return;
+
+  isHovering = true;
+  startAnimation();
+};
+
+const onLeave = () => {
+  isHovering = false;
+};
+
+const step = (timestamp: number) => {
+  if (lastTimestamp === null) lastTimestamp = timestamp;
+  const deltaTime = (timestamp - lastTimestamp) / 1000; // in seconds
+  lastTimestamp = timestamp;
+
+  // Update velocity with acceleration or deceleration
+  velocity += (isHovering ? accelerationRate : decelerationRate) * deltaTime;
+  if (velocity > maxRotationSpeed) velocity = maxRotationSpeed;
+  if (velocity < 0) velocity = 0;
+
+  // Integrate angle
+  angle = (angle + velocity * deltaTime) % 360;
+
+  if (tiltCardRef.value) {
+    const imageElement = tiltCardRef.value.querySelector(
+      ".v-img__img.v-img__img--contain",
+    );
+    if (imageElement) {
+      (imageElement as HTMLImageElement).style.transform =
+        `rotate(${angle}deg)`;
+    }
+  }
+
+  // Only continue animation if we're hovering or still decelerating
+  if (isHovering || velocity > 0) {
+    animationId = requestAnimationFrame(step);
+  }
+};
+
+const startAnimation = () => {
+  lastTimestamp = null;
+  animationId = requestAnimationFrame(step);
+};
+
+const stopAnimation = () => {
+  if (animationId !== null) {
+    cancelAnimationFrame(animationId);
+    animationId = null;
+  }
+};
+
 onMounted(() => {
   if (tiltCardRef.value && !smAndDown.value && props.enable3DTilt) {
     VanillaTilt.init(tiltCardRef.value, {
@@ -218,6 +287,7 @@ onBeforeUnmount(() => {
   if (tiltCardRef.value?.vanillaTilt && props.enable3DTilt) {
     tiltCardRef.value.vanillaTilt.destroy();
   }
+  stopAnimation();
 });
 </script>
 
@@ -282,6 +352,8 @@ onBeforeUnmount(() => {
               @click="handleClick"
               @touchstart="handleTouchStart"
               @touchend="handleTouchEnd"
+              @mouseenter="onEnter"
+              @mouseleave="onLeave"
             >
               <template v-if="titleOnHover">
                 <v-expand-transition>
diff --git a/frontend/src/utils/index.ts b/frontend/src/utils/index.ts
index 6978061fb..17d302495 100644
--- a/frontend/src/utils/index.ts
+++ b/frontend/src/utils/index.ts
@@ -746,3 +746,36 @@ export function platformCategoryToIcon(category: string) {
 }
 
 export const FRONTEND_RESOURCES_PATH = "/assets/romm/resources";
+
+export const CD_BASED_SYSTEMS = [
+  "3do", // 3DO
+  "amiga-cd32", // Amiga CD32
+  "atari-jaguar-cd", // Atari Jaguar CD
+  "philips-cd-i", // Philips CD-i
+  "commodore-cdtv", // Commodore CDTV
+  "dc", // Dreamcast
+  "fm-towns", // FM Towns
+  "hyperscan", // HyperScan
+  "laseractive", // LaserActive
+  "neo-geo-cd", // Neo Geo CD
+  "ngc", // Neo Geo CD
+  "pc-fx", // PC-FX
+  "psx", // PlayStation
+  "ps2", // PlayStation 2
+  "ps3", // PlayStation 3
+  "ps4", // PlayStation 4
+  "ps5", // PlayStation 5
+  "psp", // PlayStation Portable
+  "segacd", // Sega CD
+  "series-x-s", // Xbox Series X/S
+  "saturn", // Sega Saturn
+  "super-nes-cd-rom-system", // Super NES CD-ROM System
+  "tandy-vis", // Tandy Video Information System
+  "tg16", // TurboGrafx-16
+  "vflash", // V.Flash
+  "wii", // Wii
+  "wiiu", // Wii U
+  "xbox", // Xbox
+  "xbox360", // Xbox 360
+  "xboxone", // Xbox One
+];