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Take `WheelEvent.deltaMode` into account when panning

This commit is contained in:
Patrick Walton 2017-09-15 09:22:18 -07:00
parent a5d0df6a96
commit 82f876c4ff
1 changed files with 6 additions and 1 deletions
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7
demo/client/src/camera.ts
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@ -13,6 +13,8 @@ import * as _ from 'lodash';
import {PathfinderView} from "./view"; import {PathfinderView} from "./view";
const PIXELS_PER_LINE: number = 16.0;
const ORTHOGRAPHIC_ZOOM_SPEED: number = 1.0 / 100.0; const ORTHOGRAPHIC_ZOOM_SPEED: number = 1.0 / 100.0;
const ORTHOGRAPHIC_ZOOM_IN_FACTOR: number = 1.2; const ORTHOGRAPHIC_ZOOM_IN_FACTOR: number = 1.2;
@ -94,7 +96,10 @@ export class OrthographicCamera extends Camera {
event.preventDefault(); event.preventDefault();
if (!event.ctrlKey) { if (!event.ctrlKey) {
this.pan(glmatrix.vec2.fromValues(-event.deltaX, event.deltaY)); const delta = glmatrix.vec2.fromValues(-event.deltaX, event.deltaY);
if (event.deltaMode === event.DOM_DELTA_LINE)
glmatrix.vec2.scale(delta, delta, PIXELS_PER_LINE);
this.pan(delta);
return; return;
} }