From 9f2e4e6996fb96d23e1ca29667130a2111a59de5 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 1 Nov 2018 00:59:13 +0100 Subject: Do not use default exports --- src/view/input/directionhandler.ts | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/view/input/directionhandler.ts (limited to 'src/view/input/directionhandler.ts') diff --git a/src/view/input/directionhandler.ts b/src/view/input/directionhandler.ts new file mode 100644 index 0000000..0a3687e --- /dev/null +++ b/src/view/input/directionhandler.ts @@ -0,0 +1,37 @@ +import { InputHandler } from './inputhandler'; + +import { Listenable } from '../../util'; + +import { vec2 } from 'gl-matrix'; + +export const enum Keycode { + Left = 37, + Up = 38, + Right = 39, + Down = 40, +} + +export class DirectionHandler extends Listenable<[vec2]> { + private readonly input: InputHandler; + + constructor() { + super(); + + this.input = new InputHandler(new Set([Keycode.Left, Keycode.Up, Keycode.Right, Keycode.Down])); + + this.input.addListener(() => { + const dir = vec2.create(); + + if (this.input.has(Keycode.Left)) + vec2.add(dir, dir, [-1, 0]); + if (this.input.has(Keycode.Up)) + vec2.add(dir, dir, [0, -1]); + if (this.input.has(Keycode.Right)) + vec2.add(dir, dir, [1, 0]); + if (this.input.has(Keycode.Down)) + vec2.add(dir, dir, [0, 1]); + + this.runListeners(dir); + }); + } +} -- cgit v1.2.3