scaffolded pet menu

src/routes/scene/components/pet-menu.svelte

@@ -0,0 +1,152 @@
+<script lang="ts">
+  import { onDestroy } from "svelte";
+  import { sceneInteractive } from "../../../events/scene-interactive";
+
+  interface PetMenuAction {
+    icon: string;
+    label: string;
+    onClick?: () => void;
+  }
+
+  interface Props {
+    actions?: PetMenuAction[];
+    ariaLabel?: string;
+  }
+
+  let { actions = [], ariaLabel = "Toggle pet actions" }: Props = $props();
+
+  let rootEl = $state<HTMLDivElement | null>(null);
+  let isOpen = $state(false);
+
+  function closeMenu() {
+    isOpen = false;
+  }
+
+  function toggleMenu() {
+    if (!$sceneInteractive || actions.length === 0) {
+      closeMenu();
+      return;
+    }
+
+    isOpen = !isOpen;
+  }
+
+  function handleActionClick(action: PetMenuAction) {
+    if (!$sceneInteractive) {
+      return;
+    }
+
+    action.onClick?.();
+    closeMenu();
+  }
+
+  function getButtonPosition(index: number, total: number) {
+    if (total <= 1) {
+      return { x: 0, y: -48 };
+    }
+
+    const startAngle = -160;
+    const endAngle = -20;
+    const angle = startAngle + ((endAngle - startAngle) / (total - 1)) * index;
+    const angleRad = (angle * Math.PI) / 180;
+    const radius = 48;
+
+    return {
+      x: Math.cos(angleRad) * radius,
+      y: Math.sin(angleRad) * radius,
+    };
+  }
+
+  function handleDocumentPointerDown(event: PointerEvent) {
+    if (!isOpen || !rootEl) {
+      return;
+    }
+
+    if (event.target instanceof Node && !rootEl.contains(event.target)) {
+      closeMenu();
+    }
+  }
+
+  function handleKeyDown(event: KeyboardEvent) {
+    if (!isOpen) {
+      return;
+    }
+
+    if (event.key === "Escape") {
+      closeMenu();
+      event.preventDefault();
+    }
+  }
+
+  $effect(() => {
+    if (!$sceneInteractive && isOpen) {
+      closeMenu();
+    }
+  });
+
+  $effect(() => {
+    if (isOpen) {
+      document.addEventListener("pointerdown", handleDocumentPointerDown, true);
+      document.addEventListener("keydown", handleKeyDown, true);
+    }
+
+    return () => {
+      document.removeEventListener("pointerdown", handleDocumentPointerDown, true);
+      document.removeEventListener("keydown", handleKeyDown, true);
+    };
+  });
+
+  onDestroy(() => {
+    document.removeEventListener("pointerdown", handleDocumentPointerDown, true);
+    document.removeEventListener("keydown", handleKeyDown, true);
+  });
+</script>
+
+<div
+  bind:this={rootEl}
+  class="pointer-events-auto absolute inset-0 overflow-visible"
+>
+  {#each actions as action, index}
+    {@const position = getButtonPosition(index, actions.length)}
+    {@const openDelay = index * 35}
+    {@const closeDelay = (actions.length - 1 - index) * 25}
+
+    <button
+      type="button"
+      class={`absolute left-8 top-8 z-20 flex size-8 -translate-x-1/2 -translate-y-1/2 items-center justify-center rounded-full border border-base-300/80 bg-base-100/95 text-base-content shadow-md backdrop-blur-sm transition-[opacity,transform] duration-200 ease-out focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/60 ${
+        isOpen && $sceneInteractive
+          ? "opacity-100 hover:cursor-pointer"
+          : "pointer-events-none opacity-0"
+      }`}
+      style={`transform: translate(calc(-50% + ${position.x}px), calc(-50% + ${position.y}px)) scale(${isOpen && $sceneInteractive ? 1 : 0.72}); transition-delay: ${isOpen && $sceneInteractive ? openDelay : closeDelay}ms;`}
+      aria-label={action.label}
+      title={action.label}
+      onclick={() => {
+        handleActionClick(action);
+      }}
+    >
+      <span class="text-[11px] font-semibold leading-none">{action.icon}</span>
+    </button>
+  {/each}
+
+  <button
+    type="button"
+    class={`absolute inset-0 z-30 rounded-full transition-all duration-200 ease-out focus:outline-none ${
+      $sceneInteractive
+        ? "cursor-pointer"
+        : "pointer-events-none cursor-default"
+    } ${isOpen ? "ring-0" : ""}`}
+    aria-expanded={isOpen}
+    aria-label={ariaLabel}
+    tabindex={$sceneInteractive ? 0 : -1}
+    onclick={toggleMenu}
+    onkeydown={(e) => {
+      if (e.key === "Enter" || e.key === " ") {
+        toggleMenu();
+        e.preventDefault();
+      }
+    }}
+  >
+    <span class="sr-only">{ariaLabel}</span>
+  </button>
+</div>