From fd9a90a8496e781724e596f33300974c2159c64c Mon Sep 17 00:00:00 2001
From: Erik Onarheim <erik.onarheim@gmail.com>
Date: Sun, 1 Dec 2019 11:43:03 -0600
Subject: [PATCH] [#1345] Fix typing on pointer event handlers

---
 src/engine/Input/Pointer.ts | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/engine/Input/Pointer.ts b/src/engine/Input/Pointer.ts
index 930e92cd4..10c3a25ed 100644
--- a/src/engine/Input/Pointer.ts
+++ b/src/engine/Input/Pointer.ts
@@ -3,7 +3,7 @@ import { Vector } from '../Algebra';
 import { Class } from '../Class';
 import * as Actors from '../Util/Actors';
 import { removeItemFromArray } from '../Util/Util';
-import { PointerEvent } from './PointerEvents';
+import { PointerEvent, PointerMoveEvent, PointerDownEvent, PointerUpEvent } from './PointerEvents';
 
 export interface ActorsUnderPointer {
   [ActorId: number]: Actor;
@@ -107,6 +107,27 @@ export class Pointer extends Class {
     this.on('up', this._onPointerUp);
   }
 
+  on(event: 'move', handler: (event: PointerMoveEvent) => void): void;
+  on(event: 'down', handler: (event: PointerDownEvent) => void): void;
+  on(event: 'up', handler: (event: PointerUpEvent) => void): void;
+  on(event: string, handler: (event: any) => void): void {
+    super.on(event, handler);
+  }
+
+  once(event: 'move', handler: (event: PointerMoveEvent) => void): void;
+  once(event: 'down', handler: (event: PointerDownEvent) => void): void;
+  once(event: 'up', handler: (event: PointerUpEvent) => void): void;
+  once(event: string, handler: (event: any) => void): void {
+    super.once(event, handler);
+  }
+
+  off(event: 'move', handler?: (event: PointerMoveEvent) => void): void;
+  off(event: 'down', handler?: (event: PointerDownEvent) => void): void;
+  off(event: 'up', handler?: (event: PointerUpEvent) => void): void;
+  off(event: string, handler?: (event: any) => void): void {
+    super.off(event, handler);
+  }
+
   /**
    * Update the state of current pointer, meant to be called a the end of frame
    */
@@ -203,20 +224,20 @@ export class Pointer extends Class {
     return this._actorsUnderPointer.hasOwnProperty(actor.id.toString());
   }
 
-  private _onPointerMove(ev: PointerEvent): void {
+  private _onPointerMove(ev: PointerMoveEvent): void {
     this.lastPagePos = new Vector(ev.pagePos.x, ev.pagePos.y);
     this.lastScreenPos = new Vector(ev.screenPos.x, ev.screenPos.y);
     this.lastWorldPos = new Vector(ev.worldPos.x, ev.worldPos.y);
   }
 
-  private _onPointerDown(ev: PointerEvent): void {
+  private _onPointerDown(ev: PointerDownEvent): void {
     this.lastPagePos = new Vector(ev.pagePos.x, ev.pagePos.y);
     this.lastScreenPos = new Vector(ev.screenPos.x, ev.screenPos.y);
     this.lastWorldPos = new Vector(ev.worldPos.x, ev.worldPos.y);
     this._isDown = true;
   }
 
-  private _onPointerUp(): void {
+  private _onPointerUp(_ev: PointerUpEvent): void {
     this._isDown = false;
     this.dragTarget = null;
   }