Add some script modules

types/entity/component/interactable.d.ts

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+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+/**
+ * Interactable component. Fires a callback when the player activates it.
+ *
+ * Assign a JS function to `onInteract` to handle the event from script.
+ * Call `trigger()` to fire the callback imperatively from C or JS.
+ */
+interface Interactable extends Component {
+  /** Called when the player interacts with this entity. Set to null to clear. */
+  onInteract: (() => void) | null;
+  /** Fires the registered callback immediately (no-op if none is set). */
+  trigger(): void;
+  toString(): string;
+}
+
+interface InteractableConstructor {
+  new(): never;
+}
+
+declare var Interactable: InteractableConstructor;

types/entity/component/overworld.d.ts

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+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+/** Overworld character component (player or NPC). */
+interface Overworld extends Component {
+  /**
+   * Entity type — `Overworld.PLAYER` or `Overworld.NPC`.
+   */
+  type: number;
+  /**
+   * Facing direction — one of the `Overworld.FACING_*` constants.
+   */
+  facing: number;
+  /** Component ID of the linked Renderable, or INVALID if none. */
+  readonly renderComponentId: number;
+  /** Component ID of the linked Physics body, or INVALID if none. */
+  readonly physicsComponentId: number;
+  toString(): string;
+}
+
+interface OverworldConstructor {
+  readonly PLAYER: number;
+  readonly NPC: number;
+
+  readonly FACING_DOWN: number;
+  readonly FACING_UP: number;
+  readonly FACING_LEFT: number;
+  readonly FACING_RIGHT: number;
+  readonly FACING_SOUTH: number;
+  readonly FACING_NORTH: number;
+  readonly FACING_WEST: number;
+  readonly FACING_EAST: number;
+
+  new(): never;
+}
+
+declare var Overworld: OverworldConstructor;

types/entity/component/overworldcamera.d.ts

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+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+/**
+ * Overworld follow-camera component.
+ * Smoothly tracks a target entity's Position each frame.
+ */
+interface OverworldCamera extends Component {
+  /** Entity ID to follow. */
+  targetEntity: number;
+  /** Position component ID on the target entity. */
+  targetPositionComponent: number;
+  /** World-space offset added to the target's position before placing the camera. */
+  targetOffset: Vec3;
+  /** Eye-space offset applied on top of targetOffset. */
+  eyeOffset: Vec3;
+  /** Orthographic scale factor (larger = wider view). */
+  scale: number;
+  /**
+   * Convenience setter — equivalent to assigning `targetEntity` and
+   * `targetPositionComponent` individually.
+   */
+  setTarget(targetEntityId: number, targetPositionComponentId: number): void;
+  toString(): string;
+}
+
+interface OverworldCameraConstructor {
+  new(): never;
+}
+
+declare var OverworldCamera: OverworldCameraConstructor;

types/entity/component/overworldtrigger.d.ts

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+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+/**
+ * Overworld AABB trigger. Fires callbacks as the player enters, stays inside,
+ * exits, or remains outside the defined bounding box each frame.
+ */
+interface OverworldTrigger extends Component {
+  /** Minimum corner of the trigger AABB. */
+  min: Vec3;
+  /** Maximum corner of the trigger AABB. */
+  max: Vec3;
+  /** `true` while the player is inside the trigger bounds. */
+  readonly playerInside: boolean;
+
+  /** Fired once when the player first enters the bounds. */
+  onEnter: (() => void) | null;
+  /** Fired once when the player leaves the bounds. */
+  onExit: (() => void) | null;
+  /** Fired every frame while the player remains inside the bounds. */
+  onStay: (() => void) | null;
+  /** Fired every frame while the player remains outside the bounds. */
+  onOutside: (() => void) | null;
+
+  /** Convenience setter for both corners at once. */
+  setBounds(min: Vec3, max: Vec3): void;
+  toString(): string;
+}
+
+interface OverworldTriggerConstructor {
+  new(): never;
+}
+
+declare var OverworldTrigger: OverworldTriggerConstructor;

types/entity/component/player.d.ts

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+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+/** Player movement component. Controls walk and run speeds. */
+interface Player extends Component {
+  /** Walk speed in world units per second. */
+  speed: number;
+  /** Run speed in world units per second. */
+  runSpeed: number;
+  toString(): string;
+}
+
+interface PlayerConstructor {
+  new(): never;
+}
+
+declare var Player: PlayerConstructor;